./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/locks/test_locks_6.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version dbf71c69 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fff9225-3458-4ca9-9244-869fd386dcd7/bin/ukojak-92XMlrwhuB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fff9225-3458-4ca9-9244-869fd386dcd7/bin/ukojak-92XMlrwhuB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fff9225-3458-4ca9-9244-869fd386dcd7/bin/ukojak-92XMlrwhuB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fff9225-3458-4ca9-9244-869fd386dcd7/bin/ukojak-92XMlrwhuB/config/KojakMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_6.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fff9225-3458-4ca9-9244-869fd386dcd7/bin/ukojak-92XMlrwhuB/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fff9225-3458-4ca9-9244-869fd386dcd7/bin/ukojak-92XMlrwhuB --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 c0f4ea6e3bcbb2b79339dce82d9fa934022810e04d651b4bbb6fb3904b8f8c98 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-dbf71c6-m [2022-10-17 17:07:15,748 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-17 17:07:15,751 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-17 17:07:15,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-17 17:07:15,788 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-17 17:07:15,789 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-17 17:07:15,791 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-17 17:07:15,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-17 17:07:15,796 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-17 17:07:15,797 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-17 17:07:15,798 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-17 17:07:15,800 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-17 17:07:15,801 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-17 17:07:15,802 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-17 17:07:15,804 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-17 17:07:15,805 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-17 17:07:15,807 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-17 17:07:15,808 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-17 17:07:15,810 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-17 17:07:15,813 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-17 17:07:15,815 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-17 17:07:15,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-17 17:07:15,818 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-17 17:07:15,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-17 17:07:15,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-17 17:07:15,825 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-17 17:07:15,826 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-17 17:07:15,827 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-17 17:07:15,828 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-17 17:07:15,829 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-10-17 17:07:15,829 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-10-17 17:07:15,830 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-10-17 17:07:15,836 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-10-17 17:07:15,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-10-17 17:07:15,842 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-10-17 17:07:15,842 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-10-17 17:07:15,843 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-10-17 17:07:15,844 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-10-17 17:07:15,844 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-17 17:07:15,845 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-17 17:07:15,846 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-17 17:07:15,847 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fff9225-3458-4ca9-9244-869fd386dcd7/bin/ukojak-92XMlrwhuB/config/svcomp-DerefFreeMemtrack-32bit-Kojak_Default.epf [2022-10-17 17:07:15,897 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-17 17:07:15,898 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-17 17:07:15,899 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-17 17:07:15,900 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-17 17:07:15,900 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-17 17:07:15,900 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-17 17:07:15,901 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-17 17:07:15,901 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-17 17:07:15,901 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-17 17:07:15,901 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-17 17:07:15,902 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-10-17 17:07:15,903 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-10-17 17:07:15,903 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-10-17 17:07:15,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-17 17:07:15,903 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-17 17:07:15,904 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-17 17:07:15,904 INFO L136 SettingsManager]: Preferences of CodeCheck differ from their defaults: [2022-10-17 17:07:15,904 INFO L138 SettingsManager]: * Timeout in seconds=1000000 [2022-10-17 17:07:15,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-17 17:07:15,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:07:15,905 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-17 17:07:15,905 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-17 17:07:15,906 INFO L138 SettingsManager]: * Trace refinement strategy=PENGUIN [2022-10-17 17:07:15,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-17 17:07:15,906 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_8fff9225-3458-4ca9-9244-869fd386dcd7/bin/ukojak-92XMlrwhuB/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fff9225-3458-4ca9-9244-869fd386dcd7/bin/ukojak-92XMlrwhuB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Kojak Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c0f4ea6e3bcbb2b79339dce82d9fa934022810e04d651b4bbb6fb3904b8f8c98 [2022-10-17 17:07:16,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-17 17:07:16,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-17 17:07:16,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-17 17:07:16,180 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-17 17:07:16,181 INFO L275 PluginConnector]: CDTParser initialized [2022-10-17 17:07:16,182 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fff9225-3458-4ca9-9244-869fd386dcd7/bin/ukojak-92XMlrwhuB/../../sv-benchmarks/c/locks/test_locks_6.c [2022-10-17 17:07:16,283 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fff9225-3458-4ca9-9244-869fd386dcd7/bin/ukojak-92XMlrwhuB/data/6c11f7151/bff187ddac5f4837a03d165bf7baae91/FLAG67ec5f480 [2022-10-17 17:07:16,746 INFO L306 CDTParser]: Found 1 translation units. [2022-10-17 17:07:16,746 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fff9225-3458-4ca9-9244-869fd386dcd7/sv-benchmarks/c/locks/test_locks_6.c [2022-10-17 17:07:16,753 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fff9225-3458-4ca9-9244-869fd386dcd7/bin/ukojak-92XMlrwhuB/data/6c11f7151/bff187ddac5f4837a03d165bf7baae91/FLAG67ec5f480 [2022-10-17 17:07:17,138 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fff9225-3458-4ca9-9244-869fd386dcd7/bin/ukojak-92XMlrwhuB/data/6c11f7151/bff187ddac5f4837a03d165bf7baae91 [2022-10-17 17:07:17,142 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-17 17:07:17,145 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-10-17 17:07:17,150 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-17 17:07:17,150 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-17 17:07:17,153 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-17 17:07:17,154 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:07:17" (1/1) ... [2022-10-17 17:07:17,156 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47d1f49d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:07:17, skipping insertion in model container [2022-10-17 17:07:17,156 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 05:07:17" (1/1) ... [2022-10-17 17:07:17,164 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-17 17:07:17,184 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-17 17:07:17,421 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fff9225-3458-4ca9-9244-869fd386dcd7/sv-benchmarks/c/locks/test_locks_6.c[2544,2557] [2022-10-17 17:07:17,425 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:07:17,434 INFO L203 MainTranslator]: Completed pre-run [2022-10-17 17:07:17,453 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fff9225-3458-4ca9-9244-869fd386dcd7/sv-benchmarks/c/locks/test_locks_6.c[2544,2557] [2022-10-17 17:07:17,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-17 17:07:17,468 INFO L208 MainTranslator]: Completed translation [2022-10-17 17:07:17,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:07:17 WrapperNode [2022-10-17 17:07:17,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-17 17:07:17,469 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-17 17:07:17,470 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-17 17:07:17,470 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-17 17:07:17,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:07:17" (1/1) ... [2022-10-17 17:07:17,485 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:07:17" (1/1) ... [2022-10-17 17:07:17,505 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 94 [2022-10-17 17:07:17,505 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-17 17:07:17,506 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-17 17:07:17,506 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-17 17:07:17,506 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-17 17:07:17,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:07:17" (1/1) ... [2022-10-17 17:07:17,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:07:17" (1/1) ... [2022-10-17 17:07:17,516 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:07:17" (1/1) ... [2022-10-17 17:07:17,516 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:07:17" (1/1) ... [2022-10-17 17:07:17,520 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:07:17" (1/1) ... [2022-10-17 17:07:17,525 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:07:17" (1/1) ... [2022-10-17 17:07:17,526 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:07:17" (1/1) ... [2022-10-17 17:07:17,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:07:17" (1/1) ... [2022-10-17 17:07:17,530 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-17 17:07:17,531 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-17 17:07:17,531 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-17 17:07:17,531 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-17 17:07:17,532 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 05:07:17" (1/1) ... [2022-10-17 17:07:17,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 [2022-10-17 17:07:17,556 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fff9225-3458-4ca9-9244-869fd386dcd7/bin/ukojak-92XMlrwhuB/z3 [2022-10-17 17:07:17,570 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fff9225-3458-4ca9-9244-869fd386dcd7/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (exit command is (exit), workingDir is null) [2022-10-17 17:07:17,572 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fff9225-3458-4ca9-9244-869fd386dcd7/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Waiting until timeout for monitored process [2022-10-17 17:07:17,609 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-17 17:07:17,610 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-17 17:07:17,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-17 17:07:17,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-17 17:07:17,678 INFO L235 CfgBuilder]: Building ICFG [2022-10-17 17:07:17,680 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-17 17:07:17,889 INFO L276 CfgBuilder]: Performing block encoding [2022-10-17 17:07:18,023 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-17 17:07:18,023 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-10-17 17:07:18,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:07:18 BoogieIcfgContainer [2022-10-17 17:07:18,026 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-17 17:07:18,027 INFO L113 PluginConnector]: ------------------------CodeCheck---------------------------- [2022-10-17 17:07:18,027 INFO L271 PluginConnector]: Initializing CodeCheck... [2022-10-17 17:07:18,041 INFO L275 PluginConnector]: CodeCheck initialized [2022-10-17 17:07:18,041 INFO L185 PluginConnector]: Executing the observer CodeCheckObserver from plugin CodeCheck for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:07:18" (1/1) ... [2022-10-17 17:07:18,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-17 17:07:18,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:18,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 21 states and 34 transitions. [2022-10-17 17:07:18,147 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 34 transitions. [2022-10-17 17:07:18,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-17 17:07:18,150 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:18,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:18,331 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:07:18,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:18,379 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 21 states and 32 transitions. [2022-10-17 17:07:18,379 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 32 transitions. [2022-10-17 17:07:18,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-17 17:07:18,379 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:18,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:18,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:18,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:07:18,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:18,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 25 states and 38 transitions. [2022-10-17 17:07:18,500 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 38 transitions. [2022-10-17 17:07:18,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-17 17:07:18,500 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:18,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:18,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:18,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:07:18,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:18,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 25 states and 37 transitions. [2022-10-17 17:07:18,705 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 37 transitions. [2022-10-17 17:07:18,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-17 17:07:18,706 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:18,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:18,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:18,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:07:18,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:18,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 27 states and 39 transitions. [2022-10-17 17:07:18,993 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 39 transitions. [2022-10-17 17:07:18,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 17:07:18,993 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:18,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:19,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:19,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:07:19,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:19,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 25 states and 36 transitions. [2022-10-17 17:07:19,148 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 36 transitions. [2022-10-17 17:07:19,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-17 17:07:19,149 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:19,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:19,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:19,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:07:19,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:19,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 28 states and 41 transitions. [2022-10-17 17:07:19,782 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 41 transitions. [2022-10-17 17:07:19,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 17:07:19,783 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:19,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:19,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:19,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:07:20,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:20,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 27 states and 38 transitions. [2022-10-17 17:07:20,055 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 38 transitions. [2022-10-17 17:07:20,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 17:07:20,058 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:20,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:20,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:20,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:07:20,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:20,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 25 states and 35 transitions. [2022-10-17 17:07:20,256 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 35 transitions. [2022-10-17 17:07:20,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-17 17:07:20,257 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:20,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:20,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:20,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:07:20,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:20,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 29 states and 43 transitions. [2022-10-17 17:07:20,952 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 43 transitions. [2022-10-17 17:07:20,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 17:07:20,953 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:20,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:20,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:07:21,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:21,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 28 states and 40 transitions. [2022-10-17 17:07:21,150 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 40 transitions. [2022-10-17 17:07:21,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 17:07:21,150 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:21,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:21,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:21,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:07:21,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:21,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 27 states and 37 transitions. [2022-10-17 17:07:21,335 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 37 transitions. [2022-10-17 17:07:21,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 17:07:21,335 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:21,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:21,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:21,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:07:22,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:22,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 32 states and 48 transitions. [2022-10-17 17:07:22,271 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 48 transitions. [2022-10-17 17:07:22,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-17 17:07:22,272 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:22,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:22,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:22,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:07:22,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:22,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 30 states and 45 transitions. [2022-10-17 17:07:22,453 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 45 transitions. [2022-10-17 17:07:22,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 17:07:22,458 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:22,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:22,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:22,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:07:22,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:22,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 29 states and 42 transitions. [2022-10-17 17:07:22,719 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 42 transitions. [2022-10-17 17:07:22,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 17:07:22,720 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:22,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:22,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:22,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:07:22,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:22,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 28 states and 39 transitions. [2022-10-17 17:07:22,935 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 39 transitions. [2022-10-17 17:07:22,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 17:07:22,935 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:22,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:22,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:07:23,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:23,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 29 states and 39 transitions. [2022-10-17 17:07:23,181 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 39 transitions. [2022-10-17 17:07:23,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 17:07:23,182 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:23,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:23,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:23,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:07:24,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:24,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 35 states and 53 transitions. [2022-10-17 17:07:24,581 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 53 transitions. [2022-10-17 17:07:24,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-17 17:07:24,582 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:24,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:24,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:24,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:07:24,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:24,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 31 states and 47 transitions. [2022-10-17 17:07:24,780 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 47 transitions. [2022-10-17 17:07:24,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 17:07:24,780 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:24,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:24,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:24,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:07:25,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:25,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 30 states and 44 transitions. [2022-10-17 17:07:25,064 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 44 transitions. [2022-10-17 17:07:25,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 17:07:25,065 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:25,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:25,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:07:25,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:25,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 29 states and 41 transitions. [2022-10-17 17:07:25,349 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 41 transitions. [2022-10-17 17:07:25,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 17:07:25,350 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:25,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:25,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:25,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:07:25,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:25,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 30 states and 41 transitions. [2022-10-17 17:07:25,563 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2022-10-17 17:07:25,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 17:07:25,564 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:25,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:25,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:25,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:07:25,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:25,796 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 31 states and 41 transitions. [2022-10-17 17:07:25,796 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 41 transitions. [2022-10-17 17:07:25,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-17 17:07:25,796 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:25,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:25,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:25,831 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-17 17:07:26,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:26,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 23 states and 31 transitions. [2022-10-17 17:07:26,051 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2022-10-17 17:07:26,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-17 17:07:26,052 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:26,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:26,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:26,069 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 17:07:27,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:27,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 29 states and 47 transitions. [2022-10-17 17:07:27,642 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 47 transitions. [2022-10-17 17:07:27,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 17:07:27,642 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:27,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:27,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:27,659 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 17:07:27,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:27,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 30 states and 47 transitions. [2022-10-17 17:07:27,972 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 47 transitions. [2022-10-17 17:07:27,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 17:07:27,973 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:27,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:27,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:27,988 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 17:07:28,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:28,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 31 states and 47 transitions. [2022-10-17 17:07:28,263 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 47 transitions. [2022-10-17 17:07:28,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 17:07:28,264 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:28,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:28,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:28,280 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 17:07:28,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:28,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 32 states and 47 transitions. [2022-10-17 17:07:28,490 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 47 transitions. [2022-10-17 17:07:28,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 17:07:28,493 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:28,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:28,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:28,509 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 17:07:28,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:28,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 33 states and 47 transitions. [2022-10-17 17:07:28,786 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 47 transitions. [2022-10-17 17:07:28,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 17:07:28,786 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:28,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:28,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:28,803 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 17:07:29,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:29,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 34 states and 47 transitions. [2022-10-17 17:07:29,033 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 47 transitions. [2022-10-17 17:07:29,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-17 17:07:29,033 INFO L422 CodeCheckObserver]: Error Path is FOUND. [2022-10-17 17:07:29,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-17 17:07:29,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-17 17:07:29,052 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-17 17:07:29,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand no size info available [2022-10-17 17:07:29,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 18 states and 24 transitions. [2022-10-17 17:07:29,314 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 24 transitions. [2022-10-17 17:07:29,314 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-17 17:07:29,314 WARN L419 CodeCheckObserver]: This Program is SAFE, Check terminated with 31 iterations. [2022-10-17 17:07:29,321 INFO L754 CodeCheckObserver]: All specifications hold 2 specifications checked. All of them hold [2022-10-17 17:07:29,492 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2022-10-17 17:07:29,502 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2022-10-17 17:07:29,503 INFO L560 CodeCheckObserver]: Invariant with dag size 3 [2022-10-17 17:07:29,503 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.codecheck CFG 17.10 05:07:29 ImpRootNode [2022-10-17 17:07:29,504 INFO L132 PluginConnector]: ------------------------ END CodeCheck---------------------------- [2022-10-17 17:07:29,504 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-10-17 17:07:29,504 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-10-17 17:07:29,505 INFO L275 PluginConnector]: Witness Printer initialized [2022-10-17 17:07:29,505 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 05:07:18" (3/4) ... [2022-10-17 17:07:29,508 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-10-17 17:07:29,516 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2022-10-17 17:07:29,517 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-10-17 17:07:29,517 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-10-17 17:07:29,517 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-10-17 17:07:29,539 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid#1-unknown) == \valid [2022-10-17 17:07:29,539 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid#1-unknown) == \valid [2022-10-17 17:07:29,540 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(unknown-main_\old_#valid#1-unknown) == \valid [2022-10-17 17:07:29,564 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fff9225-3458-4ca9-9244-869fd386dcd7/bin/ukojak-92XMlrwhuB/witness.graphml [2022-10-17 17:07:29,564 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-10-17 17:07:29,565 INFO L158 Benchmark]: Toolchain (without parser) took 12420.52ms. Allocated memory was 125.8MB in the beginning and 186.6MB in the end (delta: 60.8MB). Free memory was 89.8MB in the beginning and 76.0MB in the end (delta: 13.8MB). Peak memory consumption was 73.2MB. Max. memory is 16.1GB. [2022-10-17 17:07:29,566 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 88.1MB. Free memory was 59.1MB in the beginning and 59.1MB in the end (delta: 27.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-10-17 17:07:29,566 INFO L158 Benchmark]: CACSL2BoogieTranslator took 318.80ms. Allocated memory is still 125.8MB. Free memory was 89.5MB in the beginning and 99.6MB in the end (delta: -10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-10-17 17:07:29,567 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.13ms. Allocated memory is still 125.8MB. Free memory was 99.6MB in the beginning and 98.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:07:29,567 INFO L158 Benchmark]: Boogie Preprocessor took 23.68ms. Allocated memory is still 125.8MB. Free memory was 98.0MB in the beginning and 96.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:07:29,568 INFO L158 Benchmark]: RCFGBuilder took 495.42ms. Allocated memory is still 125.8MB. Free memory was 96.8MB in the beginning and 80.3MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-10-17 17:07:29,568 INFO L158 Benchmark]: CodeCheck took 11476.88ms. Allocated memory was 125.8MB in the beginning and 186.6MB in the end (delta: 60.8MB). Free memory was 80.3MB in the beginning and 79.1MB in the end (delta: 1.3MB). Peak memory consumption was 63.5MB. Max. memory is 16.1GB. [2022-10-17 17:07:29,569 INFO L158 Benchmark]: Witness Printer took 60.31ms. Allocated memory is still 186.6MB. Free memory was 79.1MB in the beginning and 76.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-10-17 17:07:29,571 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, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 11.2s, OverallIterations: 31, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2172 SdHoareTripleChecker+Valid, 10.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1544 mSDsluCounter, 812 SdHoareTripleChecker+Invalid, 8.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 290 mSDsCounter, 1514 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5200 IncrementalHoareTripleChecker+Invalid, 6714 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1514 mSolverCounterUnsat, 522 mSDtfsCounter, 5200 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2858 GetRequests, 2664 SyntacticMatches, 0 SemanticMatches, 194 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15848 ImplicationChecksByTransitivity, 8.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 317 NumberOfCodeBlocks, 317 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 287 ConstructedInterpolants, 0 QuantifiedInterpolants, 1153 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 30 InterpolantComputations, 30 PerfectInterpolantSequences, 14/14 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: 107]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 6]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 7]: Loop Invariant Derived loop invariant: \old(unknown-main_\old_#valid#1-unknown) == \valid - InvariantResult [Line: 6]: Loop Invariant Derived loop invariant: \old(unknown-main_\old_#valid#1-unknown) == \valid - InvariantResult [Line: 29]: 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 0.26ms. Allocated memory is still 88.1MB. Free memory was 59.1MB in the beginning and 59.1MB in the end (delta: 27.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 318.80ms. Allocated memory is still 125.8MB. Free memory was 89.5MB in the beginning and 99.6MB in the end (delta: -10.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.13ms. Allocated memory is still 125.8MB. Free memory was 99.6MB in the beginning and 98.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.68ms. Allocated memory is still 125.8MB. Free memory was 98.0MB in the beginning and 96.8MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 495.42ms. Allocated memory is still 125.8MB. Free memory was 96.8MB in the beginning and 80.3MB in the end (delta: 16.5MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * CodeCheck took 11476.88ms. Allocated memory was 125.8MB in the beginning and 186.6MB in the end (delta: 60.8MB). Free memory was 80.3MB in the beginning and 79.1MB in the end (delta: 1.3MB). Peak memory consumption was 63.5MB. Max. memory is 16.1GB. * Witness Printer took 60.31ms. Allocated memory is still 186.6MB. Free memory was 79.1MB in the beginning and 76.0MB 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! [2022-10-17 17:07:29,622 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8fff9225-3458-4ca9-9244-869fd386dcd7/bin/ukojak-92XMlrwhuB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:10000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE