./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cb26446-b583-4061-aa7f-03c0e6999006/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cb26446-b583-4061-aa7f-03c0e6999006/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cb26446-b583-4061-aa7f-03c0e6999006/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cb26446-b583-4061-aa7f-03c0e6999006/bin/uautomizer-ug76WZFUDN/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cb26446-b583-4061-aa7f-03c0e6999006/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cb26446-b583-4061-aa7f-03c0e6999006/bin/uautomizer-ug76WZFUDN --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5350e4ca2594121b974c795f0a5f8bd0219ad1e56ba65ceaff14b5f6479d7178 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 09:27:07,807 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 09:27:07,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 09:27:07,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 09:27:07,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 09:27:07,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 09:27:07,843 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 09:27:07,846 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 09:27:07,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 09:27:07,854 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 09:27:07,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 09:27:07,858 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 09:27:07,858 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 09:27:07,863 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 09:27:07,866 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 09:27:07,869 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 09:27:07,870 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 09:27:07,871 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 09:27:07,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 09:27:07,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 09:27:07,881 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 09:27:07,883 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 09:27:07,884 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 09:27:07,885 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 09:27:07,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 09:27:07,896 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 09:27:07,896 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 09:27:07,898 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 09:27:07,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 09:27:07,900 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 09:27:07,901 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 09:27:07,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 09:27:07,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 09:27:07,904 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 09:27:07,905 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 09:27:07,905 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 09:27:07,906 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 09:27:07,906 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 09:27:07,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 09:27:07,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 09:27:07,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 09:27:07,909 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cb26446-b583-4061-aa7f-03c0e6999006/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-20 09:27:07,949 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 09:27:07,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 09:27:07,957 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 09:27:07,957 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 09:27:07,959 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 09:27:07,959 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 09:27:07,960 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 09:27:07,960 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 09:27:07,960 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 09:27:07,960 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 09:27:07,962 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 09:27:07,962 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 09:27:07,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 09:27:07,962 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 09:27:07,963 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 09:27:07,963 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 09:27:07,963 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 09:27:07,963 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 09:27:07,963 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 09:27:07,964 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 09:27:07,964 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 09:27:07,964 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 09:27:07,964 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 09:27:07,964 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 09:27:07,965 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 09:27:07,965 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:07,965 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 09:27:07,965 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 09:27:07,966 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 09:27:07,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 09:27:07,966 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_4cb26446-b583-4061-aa7f-03c0e6999006/bin/uautomizer-ug76WZFUDN/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cb26446-b583-4061-aa7f-03c0e6999006/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5350e4ca2594121b974c795f0a5f8bd0219ad1e56ba65ceaff14b5f6479d7178 [2022-11-20 09:27:08,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 09:27:08,345 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 09:27:08,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 09:27:08,350 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 09:27:08,351 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 09:27:08,352 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cb26446-b583-4061-aa7f-03c0e6999006/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-11-20 09:27:11,450 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 09:27:11,799 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 09:27:11,799 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cb26446-b583-4061-aa7f-03c0e6999006/sv-benchmarks/c/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-11-20 09:27:11,813 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cb26446-b583-4061-aa7f-03c0e6999006/bin/uautomizer-ug76WZFUDN/data/d85f064a3/4bd6c5ba16214081a3a1ce5ba38ea92f/FLAGfbd47311a [2022-11-20 09:27:11,828 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cb26446-b583-4061-aa7f-03c0e6999006/bin/uautomizer-ug76WZFUDN/data/d85f064a3/4bd6c5ba16214081a3a1ce5ba38ea92f [2022-11-20 09:27:11,831 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 09:27:11,832 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 09:27:11,834 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:11,834 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 09:27:11,838 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 09:27:11,838 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:11" (1/1) ... [2022-11-20 09:27:11,839 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48311e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:11, skipping insertion in model container [2022-11-20 09:27:11,840 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:27:11" (1/1) ... [2022-11-20 09:27:11,847 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 09:27:11,906 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 09:27:12,087 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_4cb26446-b583-4061-aa7f-03c0e6999006/sv-benchmarks/c/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-11-20 09:27:12,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:12,371 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 09:27:12,386 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_4cb26446-b583-4061-aa7f-03c0e6999006/sv-benchmarks/c/pthread-wmm/safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2022-11-20 09:27:12,454 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 09:27:12,498 INFO L208 MainTranslator]: Completed translation [2022-11-20 09:27:12,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:12 WrapperNode [2022-11-20 09:27:12,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 09:27:12,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 09:27:12,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 09:27:12,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 09:27:12,512 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:12" (1/1) ... [2022-11-20 09:27:12,546 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:12" (1/1) ... [2022-11-20 09:27:12,577 INFO L138 Inliner]: procedures = 176, calls = 55, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 70 [2022-11-20 09:27:12,578 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 09:27:12,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 09:27:12,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 09:27:12,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 09:27:12,590 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:12" (1/1) ... [2022-11-20 09:27:12,590 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:12" (1/1) ... [2022-11-20 09:27:12,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:12" (1/1) ... [2022-11-20 09:27:12,613 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:12" (1/1) ... [2022-11-20 09:27:12,619 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:12" (1/1) ... [2022-11-20 09:27:12,621 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:12" (1/1) ... [2022-11-20 09:27:12,623 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:12" (1/1) ... [2022-11-20 09:27:12,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:12" (1/1) ... [2022-11-20 09:27:12,627 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 09:27:12,628 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 09:27:12,628 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 09:27:12,628 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 09:27:12,629 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:12" (1/1) ... [2022-11-20 09:27:12,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 09:27:12,649 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cb26446-b583-4061-aa7f-03c0e6999006/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 09:27:12,672 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cb26446-b583-4061-aa7f-03c0e6999006/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 09:27:12,703 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cb26446-b583-4061-aa7f-03c0e6999006/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 09:27:12,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 09:27:12,722 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-20 09:27:12,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 09:27:12,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 09:27:12,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 09:27:12,722 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-20 09:27:12,723 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-20 09:27:12,724 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-20 09:27:12,724 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-20 09:27:12,724 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-20 09:27:12,729 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-20 09:27:12,730 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 09:27:12,730 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-20 09:27:12,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 09:27:12,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 09:27:12,732 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 09:27:12,895 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 09:27:12,897 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 09:27:13,229 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 09:27:13,236 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 09:27:13,237 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 09:27:13,239 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:27:13 BoogieIcfgContainer [2022-11-20 09:27:13,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 09:27:13,242 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 09:27:13,242 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 09:27:13,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 09:27:13,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:27:11" (1/3) ... [2022-11-20 09:27:13,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d9b19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:27:13, skipping insertion in model container [2022-11-20 09:27:13,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:27:12" (2/3) ... [2022-11-20 09:27:13,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23d9b19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:27:13, skipping insertion in model container [2022-11-20 09:27:13,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:27:13" (3/3) ... [2022-11-20 09:27:13,249 INFO L112 eAbstractionObserver]: Analyzing ICFG safe015_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-11-20 09:27:13,270 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 09:27:13,270 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2022-11-20 09:27:13,270 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 09:27:13,338 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 09:27:13,389 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 09:27:13,413 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 109 places, 101 transitions, 217 flow [2022-11-20 09:27:13,418 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 109 places, 101 transitions, 217 flow [2022-11-20 09:27:13,420 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 109 places, 101 transitions, 217 flow [2022-11-20 09:27:13,516 INFO L130 PetriNetUnfolder]: 2/98 cut-off events. [2022-11-20 09:27:13,517 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 09:27:13,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108 conditions, 98 events. 2/98 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/88 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2022-11-20 09:27:13,528 INFO L119 LiptonReduction]: Number of co-enabled transitions 1800 [2022-11-20 09:27:17,264 INFO L134 LiptonReduction]: Checked pairs total: 3044 [2022-11-20 09:27:17,264 INFO L136 LiptonReduction]: Total number of compositions: 100 [2022-11-20 09:27:17,273 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 30 transitions, 75 flow [2022-11-20 09:27:17,335 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 404 states, 396 states have (on average 3.111111111111111) internal successors, (1232), 403 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:17,355 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 09:27:17,361 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3908e5b7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 09:27:17,362 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-11-20 09:27:17,366 INFO L276 IsEmpty]: Start isEmpty. Operand has 404 states, 396 states have (on average 3.111111111111111) internal successors, (1232), 403 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:17,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-20 09:27:17,377 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:27:17,378 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-20 09:27:17,378 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 09:27:17,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:17,384 INFO L85 PathProgramCache]: Analyzing trace with hash 359, now seen corresponding path program 1 times [2022-11-20 09:27:17,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:17,393 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350514926] [2022-11-20 09:27:17,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:17,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:17,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:17,498 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:17,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:17,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350514926] [2022-11-20 09:27:17,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350514926] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:17,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:17,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-20 09:27:17,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085735454] [2022-11-20 09:27:17,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:17,508 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 09:27:17,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:17,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 09:27:17,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 09:27:17,542 INFO L87 Difference]: Start difference. First operand has 404 states, 396 states have (on average 3.111111111111111) internal successors, (1232), 403 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:17,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:27:17,631 INFO L93 Difference]: Finished difference Result 362 states and 1072 transitions. [2022-11-20 09:27:17,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 09:27:17,634 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-20 09:27:17,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:27:17,658 INFO L225 Difference]: With dead ends: 362 [2022-11-20 09:27:17,663 INFO L226 Difference]: Without dead ends: 362 [2022-11-20 09:27:17,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 09:27:17,669 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:27:17,671 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:27:17,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2022-11-20 09:27:17,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 362. [2022-11-20 09:27:17,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 362 states, 360 states have (on average 2.977777777777778) internal successors, (1072), 361 states have internal predecessors, (1072), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:17,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 362 states to 362 states and 1072 transitions. [2022-11-20 09:27:17,769 INFO L78 Accepts]: Start accepts. Automaton has 362 states and 1072 transitions. Word has length 1 [2022-11-20 09:27:17,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:27:17,770 INFO L495 AbstractCegarLoop]: Abstraction has 362 states and 1072 transitions. [2022-11-20 09:27:17,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:17,770 INFO L276 IsEmpty]: Start isEmpty. Operand 362 states and 1072 transitions. [2022-11-20 09:27:17,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 09:27:17,772 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:27:17,772 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:17,772 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 09:27:17,772 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 09:27:17,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:17,773 INFO L85 PathProgramCache]: Analyzing trace with hash -1440210259, now seen corresponding path program 1 times [2022-11-20 09:27:17,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:17,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041685864] [2022-11-20 09:27:17,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:17,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:17,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:18,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:18,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:18,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041685864] [2022-11-20 09:27:18,279 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041685864] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:18,279 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:18,279 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 09:27:18,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875011013] [2022-11-20 09:27:18,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:18,282 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:27:18,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:18,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:27:18,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:27:18,288 INFO L87 Difference]: Start difference. First operand 362 states and 1072 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:18,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:27:18,431 INFO L93 Difference]: Finished difference Result 739 states and 2110 transitions. [2022-11-20 09:27:18,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:27:18,432 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-20 09:27:18,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:27:18,443 INFO L225 Difference]: With dead ends: 739 [2022-11-20 09:27:18,443 INFO L226 Difference]: Without dead ends: 739 [2022-11-20 09:27:18,445 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:27:18,451 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 24 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:27:18,452 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 12 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:27:18,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states. [2022-11-20 09:27:18,502 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 502. [2022-11-20 09:27:18,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 502 states, 500 states have (on average 3.004) internal successors, (1502), 501 states have internal predecessors, (1502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:18,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 502 states to 502 states and 1502 transitions. [2022-11-20 09:27:18,513 INFO L78 Accepts]: Start accepts. Automaton has 502 states and 1502 transitions. Word has length 9 [2022-11-20 09:27:18,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:27:18,514 INFO L495 AbstractCegarLoop]: Abstraction has 502 states and 1502 transitions. [2022-11-20 09:27:18,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:18,516 INFO L276 IsEmpty]: Start isEmpty. Operand 502 states and 1502 transitions. [2022-11-20 09:27:18,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 09:27:18,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:27:18,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:18,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 09:27:18,521 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 09:27:18,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:18,522 INFO L85 PathProgramCache]: Analyzing trace with hash -1440210184, now seen corresponding path program 1 times [2022-11-20 09:27:18,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:18,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396507432] [2022-11-20 09:27:18,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:18,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:18,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:18,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:18,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:18,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396507432] [2022-11-20 09:27:18,992 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396507432] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:18,992 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:18,992 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:27:18,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394893423] [2022-11-20 09:27:18,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:18,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:27:18,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:18,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:27:18,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:27:18,994 INFO L87 Difference]: Start difference. First operand 502 states and 1502 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:19,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:27:19,076 INFO L93 Difference]: Finished difference Result 438 states and 1232 transitions. [2022-11-20 09:27:19,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:27:19,077 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-20 09:27:19,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:27:19,079 INFO L225 Difference]: With dead ends: 438 [2022-11-20 09:27:19,080 INFO L226 Difference]: Without dead ends: 342 [2022-11-20 09:27:19,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:27:19,082 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 19 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:27:19,083 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 18 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:27:19,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2022-11-20 09:27:19,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2022-11-20 09:27:19,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 341 states have (on average 2.7536656891495603) internal successors, (939), 341 states have internal predecessors, (939), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:19,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 939 transitions. [2022-11-20 09:27:19,098 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 939 transitions. Word has length 9 [2022-11-20 09:27:19,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:27:19,099 INFO L495 AbstractCegarLoop]: Abstraction has 342 states and 939 transitions. [2022-11-20 09:27:19,099 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:19,099 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 939 transitions. [2022-11-20 09:27:19,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-20 09:27:19,101 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:27:19,101 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:19,101 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 09:27:19,101 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 09:27:19,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:19,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1696897575, now seen corresponding path program 1 times [2022-11-20 09:27:19,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:19,121 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835736920] [2022-11-20 09:27:19,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:19,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:19,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:19,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:19,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:19,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835736920] [2022-11-20 09:27:19,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835736920] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:19,255 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:19,255 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:27:19,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006175377] [2022-11-20 09:27:19,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:19,256 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:27:19,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:19,256 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:27:19,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:27:19,257 INFO L87 Difference]: Start difference. First operand 342 states and 939 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:19,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:27:19,379 INFO L93 Difference]: Finished difference Result 457 states and 1176 transitions. [2022-11-20 09:27:19,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:27:19,380 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-20 09:27:19,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:27:19,382 INFO L225 Difference]: With dead ends: 457 [2022-11-20 09:27:19,382 INFO L226 Difference]: Without dead ends: 368 [2022-11-20 09:27:19,382 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:27:19,383 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 48 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:27:19,384 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 9 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:27:19,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2022-11-20 09:27:19,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 304. [2022-11-20 09:27:19,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 303 states have (on average 2.702970297029703) internal successors, (819), 303 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:19,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 819 transitions. [2022-11-20 09:27:19,397 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 819 transitions. Word has length 10 [2022-11-20 09:27:19,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:27:19,397 INFO L495 AbstractCegarLoop]: Abstraction has 304 states and 819 transitions. [2022-11-20 09:27:19,397 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:19,397 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 819 transitions. [2022-11-20 09:27:19,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 09:27:19,398 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:27:19,399 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:19,399 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 09:27:19,399 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 09:27:19,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:19,400 INFO L85 PathProgramCache]: Analyzing trace with hash -276165211, now seen corresponding path program 1 times [2022-11-20 09:27:19,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:19,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819571439] [2022-11-20 09:27:19,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:19,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:19,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:19,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:19,571 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:19,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819571439] [2022-11-20 09:27:19,571 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819571439] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:19,571 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:19,571 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:27:19,572 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1518315155] [2022-11-20 09:27:19,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:19,578 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:27:19,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:19,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:27:19,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:27:19,579 INFO L87 Difference]: Start difference. First operand 304 states and 819 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:19,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:27:19,712 INFO L93 Difference]: Finished difference Result 412 states and 1050 transitions. [2022-11-20 09:27:19,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:27:19,716 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-20 09:27:19,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:27:19,719 INFO L225 Difference]: With dead ends: 412 [2022-11-20 09:27:19,719 INFO L226 Difference]: Without dead ends: 346 [2022-11-20 09:27:19,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:27:19,720 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 39 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:27:19,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 11 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:27:19,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2022-11-20 09:27:19,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 288. [2022-11-20 09:27:19,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 288 states, 287 states have (on average 2.662020905923345) internal successors, (764), 287 states have internal predecessors, (764), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:19,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 764 transitions. [2022-11-20 09:27:19,735 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 764 transitions. Word has length 11 [2022-11-20 09:27:19,735 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:27:19,735 INFO L495 AbstractCegarLoop]: Abstraction has 288 states and 764 transitions. [2022-11-20 09:27:19,735 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:19,735 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 764 transitions. [2022-11-20 09:27:19,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-20 09:27:19,739 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:27:19,739 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:19,739 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 09:27:19,740 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 09:27:19,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:19,740 INFO L85 PathProgramCache]: Analyzing trace with hash -276119083, now seen corresponding path program 1 times [2022-11-20 09:27:19,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:19,740 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749801074] [2022-11-20 09:27:19,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:19,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:19,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:19,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:19,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:19,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749801074] [2022-11-20 09:27:19,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [749801074] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:19,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:19,884 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:27:19,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270127607] [2022-11-20 09:27:19,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:19,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:27:19,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:19,886 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:27:19,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:27:19,886 INFO L87 Difference]: Start difference. First operand 288 states and 764 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:20,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:27:20,017 INFO L93 Difference]: Finished difference Result 368 states and 921 transitions. [2022-11-20 09:27:20,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:27:20,018 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-20 09:27:20,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:27:20,020 INFO L225 Difference]: With dead ends: 368 [2022-11-20 09:27:20,020 INFO L226 Difference]: Without dead ends: 312 [2022-11-20 09:27:20,020 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:27:20,021 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 31 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:27:20,021 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 14 Invalid, 109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:27:20,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2022-11-20 09:27:20,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 250. [2022-11-20 09:27:20,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 249 states have (on average 2.5863453815261046) internal successors, (644), 249 states have internal predecessors, (644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:20,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 644 transitions. [2022-11-20 09:27:20,031 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 644 transitions. Word has length 11 [2022-11-20 09:27:20,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:27:20,032 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 644 transitions. [2022-11-20 09:27:20,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 5 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:20,032 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 644 transitions. [2022-11-20 09:27:20,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-20 09:27:20,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:27:20,033 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:20,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 09:27:20,033 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 09:27:20,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:20,034 INFO L85 PathProgramCache]: Analyzing trace with hash 28760545, now seen corresponding path program 1 times [2022-11-20 09:27:20,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:20,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2079146254] [2022-11-20 09:27:20,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:20,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:20,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:20,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:20,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2079146254] [2022-11-20 09:27:20,193 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2079146254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:20,193 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:20,193 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:27:20,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575190957] [2022-11-20 09:27:20,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:20,194 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:27:20,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:20,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:27:20,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:27:20,195 INFO L87 Difference]: Start difference. First operand 250 states and 644 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:20,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:27:20,303 INFO L93 Difference]: Finished difference Result 318 states and 800 transitions. [2022-11-20 09:27:20,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:27:20,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-20 09:27:20,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:27:20,305 INFO L225 Difference]: With dead ends: 318 [2022-11-20 09:27:20,305 INFO L226 Difference]: Without dead ends: 290 [2022-11-20 09:27:20,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:27:20,307 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 27 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:27:20,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 19 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:27:20,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2022-11-20 09:27:20,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 222. [2022-11-20 09:27:20,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 221 states have (on average 2.579185520361991) internal successors, (570), 221 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:20,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 570 transitions. [2022-11-20 09:27:20,318 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 570 transitions. Word has length 12 [2022-11-20 09:27:20,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:27:20,318 INFO L495 AbstractCegarLoop]: Abstraction has 222 states and 570 transitions. [2022-11-20 09:27:20,318 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:20,318 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 570 transitions. [2022-11-20 09:27:20,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-20 09:27:20,320 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:27:20,320 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:20,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 09:27:20,320 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 09:27:20,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:20,321 INFO L85 PathProgramCache]: Analyzing trace with hash 891529194, now seen corresponding path program 1 times [2022-11-20 09:27:20,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:20,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842177013] [2022-11-20 09:27:20,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:20,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:20,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:20,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:20,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:20,449 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842177013] [2022-11-20 09:27:20,449 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842177013] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:20,449 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:20,449 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 09:27:20,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317745277] [2022-11-20 09:27:20,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:20,450 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 09:27:20,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:20,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 09:27:20,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 09:27:20,451 INFO L87 Difference]: Start difference. First operand 222 states and 570 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:20,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:27:20,506 INFO L93 Difference]: Finished difference Result 252 states and 590 transitions. [2022-11-20 09:27:20,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-20 09:27:20,506 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-20 09:27:20,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:27:20,508 INFO L225 Difference]: With dead ends: 252 [2022-11-20 09:27:20,508 INFO L226 Difference]: Without dead ends: 184 [2022-11-20 09:27:20,508 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:27:20,510 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 27 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:27:20,511 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 9 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:27:20,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2022-11-20 09:27:20,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 184. [2022-11-20 09:27:20,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 183 states have (on average 2.3060109289617485) internal successors, (422), 183 states have internal predecessors, (422), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:20,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 422 transitions. [2022-11-20 09:27:20,518 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 422 transitions. Word has length 13 [2022-11-20 09:27:20,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:27:20,518 INFO L495 AbstractCegarLoop]: Abstraction has 184 states and 422 transitions. [2022-11-20 09:27:20,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:20,519 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 422 transitions. [2022-11-20 09:27:20,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-20 09:27:20,519 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:27:20,519 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:20,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 09:27:20,520 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 09:27:20,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:20,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1342592238, now seen corresponding path program 1 times [2022-11-20 09:27:20,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:20,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281453197] [2022-11-20 09:27:20,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:20,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:20,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:20,680 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:20,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:20,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281453197] [2022-11-20 09:27:20,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281453197] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:20,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:20,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:27:20,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [833639417] [2022-11-20 09:27:20,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:20,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:27:20,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:20,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:27:20,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:27:20,688 INFO L87 Difference]: Start difference. First operand 184 states and 422 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:20,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:27:20,771 INFO L93 Difference]: Finished difference Result 175 states and 370 transitions. [2022-11-20 09:27:20,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:27:20,772 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-20 09:27:20,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:27:20,773 INFO L225 Difference]: With dead ends: 175 [2022-11-20 09:27:20,773 INFO L226 Difference]: Without dead ends: 133 [2022-11-20 09:27:20,773 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:27:20,774 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 56 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:27:20,774 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 12 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:27:20,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2022-11-20 09:27:20,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2022-11-20 09:27:20,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 132 states have (on average 2.0833333333333335) internal successors, (275), 132 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:20,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 275 transitions. [2022-11-20 09:27:20,779 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 275 transitions. Word has length 14 [2022-11-20 09:27:20,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:27:20,780 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 275 transitions. [2022-11-20 09:27:20,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:20,780 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 275 transitions. [2022-11-20 09:27:20,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-20 09:27:20,781 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:27:20,781 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:20,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-20 09:27:20,781 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 09:27:20,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:20,782 INFO L85 PathProgramCache]: Analyzing trace with hash 675843091, now seen corresponding path program 1 times [2022-11-20 09:27:20,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:20,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171755167] [2022-11-20 09:27:20,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:20,782 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:20,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:20,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:20,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:20,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171755167] [2022-11-20 09:27:20,927 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171755167] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:20,927 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:20,927 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:27:20,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444292597] [2022-11-20 09:27:20,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:20,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:27:20,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:20,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:27:20,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:27:20,929 INFO L87 Difference]: Start difference. First operand 133 states and 275 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:21,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:27:21,045 INFO L93 Difference]: Finished difference Result 203 states and 401 transitions. [2022-11-20 09:27:21,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:27:21,046 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-20 09:27:21,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:27:21,047 INFO L225 Difference]: With dead ends: 203 [2022-11-20 09:27:21,047 INFO L226 Difference]: Without dead ends: 163 [2022-11-20 09:27:21,048 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:27:21,048 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 25 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:27:21,049 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 15 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:27:21,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2022-11-20 09:27:21,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 126. [2022-11-20 09:27:21,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 125 states have (on average 2.04) internal successors, (255), 125 states have internal predecessors, (255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:21,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 255 transitions. [2022-11-20 09:27:21,055 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 255 transitions. Word has length 15 [2022-11-20 09:27:21,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:27:21,055 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 255 transitions. [2022-11-20 09:27:21,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:21,056 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 255 transitions. [2022-11-20 09:27:21,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 09:27:21,056 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:27:21,057 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:21,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-20 09:27:21,057 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 09:27:21,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:21,058 INFO L85 PathProgramCache]: Analyzing trace with hash 1541766367, now seen corresponding path program 1 times [2022-11-20 09:27:21,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:21,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378901375] [2022-11-20 09:27:21,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:21,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:21,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:21,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:21,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:21,206 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378901375] [2022-11-20 09:27:21,206 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378901375] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:21,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:21,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:27:21,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29176470] [2022-11-20 09:27:21,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:21,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 09:27:21,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:21,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 09:27:21,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 09:27:21,208 INFO L87 Difference]: Start difference. First operand 126 states and 255 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:21,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:27:21,294 INFO L93 Difference]: Finished difference Result 151 states and 293 transitions. [2022-11-20 09:27:21,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:27:21,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-20 09:27:21,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:27:21,295 INFO L225 Difference]: With dead ends: 151 [2022-11-20 09:27:21,295 INFO L226 Difference]: Without dead ends: 124 [2022-11-20 09:27:21,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-11-20 09:27:21,296 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 22 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:27:21,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 13 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:27:21,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-11-20 09:27:21,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 120. [2022-11-20 09:27:21,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 119 states have (on average 1.9579831932773109) internal successors, (233), 119 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:21,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 233 transitions. [2022-11-20 09:27:21,301 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 233 transitions. Word has length 16 [2022-11-20 09:27:21,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:27:21,302 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 233 transitions. [2022-11-20 09:27:21,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:21,302 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 233 transitions. [2022-11-20 09:27:21,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-20 09:27:21,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:27:21,303 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:21,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-20 09:27:21,303 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 09:27:21,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:21,303 INFO L85 PathProgramCache]: Analyzing trace with hash 2022773027, now seen corresponding path program 1 times [2022-11-20 09:27:21,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:21,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621465323] [2022-11-20 09:27:21,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:21,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:21,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:21,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:21,437 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:21,437 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621465323] [2022-11-20 09:27:21,437 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621465323] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:21,437 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:21,437 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:27:21,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098752210] [2022-11-20 09:27:21,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:21,438 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:27:21,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:21,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:27:21,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:27:21,439 INFO L87 Difference]: Start difference. First operand 120 states and 233 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:21,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:27:21,512 INFO L93 Difference]: Finished difference Result 111 states and 213 transitions. [2022-11-20 09:27:21,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-20 09:27:21,512 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-20 09:27:21,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:27:21,513 INFO L225 Difference]: With dead ends: 111 [2022-11-20 09:27:21,513 INFO L226 Difference]: Without dead ends: 39 [2022-11-20 09:27:21,513 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-11-20 09:27:21,514 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 68 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:27:21,514 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 7 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:27:21,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2022-11-20 09:27:21,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 39. [2022-11-20 09:27:21,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.6578947368421053) internal successors, (63), 38 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:21,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 63 transitions. [2022-11-20 09:27:21,516 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 63 transitions. Word has length 16 [2022-11-20 09:27:21,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:27:21,516 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 63 transitions. [2022-11-20 09:27:21,517 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:21,517 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 63 transitions. [2022-11-20 09:27:21,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 09:27:21,517 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:27:21,517 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:21,517 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-20 09:27:21,518 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 09:27:21,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:21,518 INFO L85 PathProgramCache]: Analyzing trace with hash -948801570, now seen corresponding path program 1 times [2022-11-20 09:27:21,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:21,518 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953182462] [2022-11-20 09:27:21,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:21,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:21,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:21,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:21,640 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:21,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953182462] [2022-11-20 09:27:21,640 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [953182462] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:21,640 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:21,640 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 09:27:21,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475373631] [2022-11-20 09:27:21,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:21,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:27:21,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:21,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:27:21,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:27:21,642 INFO L87 Difference]: Start difference. First operand 39 states and 63 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:21,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:27:21,719 INFO L93 Difference]: Finished difference Result 58 states and 92 transitions. [2022-11-20 09:27:21,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 09:27:21,720 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-20 09:27:21,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:27:21,720 INFO L225 Difference]: With dead ends: 58 [2022-11-20 09:27:21,721 INFO L226 Difference]: Without dead ends: 36 [2022-11-20 09:27:21,721 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-20 09:27:21,721 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 29 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 88 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 09:27:21,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 12 Invalid, 88 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 09:27:21,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-11-20 09:27:21,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2022-11-20 09:27:21,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.6285714285714286) internal successors, (57), 35 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:21,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 57 transitions. [2022-11-20 09:27:21,724 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 57 transitions. Word has length 18 [2022-11-20 09:27:21,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:27:21,724 INFO L495 AbstractCegarLoop]: Abstraction has 36 states and 57 transitions. [2022-11-20 09:27:21,724 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:21,724 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 57 transitions. [2022-11-20 09:27:21,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-20 09:27:21,725 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 09:27:21,725 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:21,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-20 09:27:21,725 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 8 more)] === [2022-11-20 09:27:21,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 09:27:21,726 INFO L85 PathProgramCache]: Analyzing trace with hash -1427179886, now seen corresponding path program 2 times [2022-11-20 09:27:21,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 09:27:21,726 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [960277214] [2022-11-20 09:27:21,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 09:27:21,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 09:27:21,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 09:27:21,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 09:27:21,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 09:27:21,868 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [960277214] [2022-11-20 09:27:21,868 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [960277214] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 09:27:21,868 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 09:27:21,868 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 09:27:21,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2026504527] [2022-11-20 09:27:21,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 09:27:21,869 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-20 09:27:21,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 09:27:21,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-20 09:27:21,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-11-20 09:27:21,870 INFO L87 Difference]: Start difference. First operand 36 states and 57 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:21,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 09:27:21,913 INFO L93 Difference]: Finished difference Result 35 states and 56 transitions. [2022-11-20 09:27:21,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 09:27:21,914 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-11-20 09:27:21,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 09:27:21,915 INFO L225 Difference]: With dead ends: 35 [2022-11-20 09:27:21,915 INFO L226 Difference]: Without dead ends: 0 [2022-11-20 09:27:21,915 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2022-11-20 09:27:21,916 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 22 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 09:27:21,916 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 5 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 09:27:21,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-20 09:27:21,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-20 09:27:21,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:21,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-20 09:27:21,918 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2022-11-20 09:27:21,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 09:27:21,918 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-20 09:27:21,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 5 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 09:27:21,918 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-20 09:27:21,919 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-20 09:27:21,921 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 11 remaining) [2022-11-20 09:27:21,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 11 remaining) [2022-11-20 09:27:21,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 11 remaining) [2022-11-20 09:27:21,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 11 remaining) [2022-11-20 09:27:21,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 11 remaining) [2022-11-20 09:27:21,922 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 11 remaining) [2022-11-20 09:27:21,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (4 of 11 remaining) [2022-11-20 09:27:21,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (3 of 11 remaining) [2022-11-20 09:27:21,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 11 remaining) [2022-11-20 09:27:21,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 11 remaining) [2022-11-20 09:27:21,923 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 11 remaining) [2022-11-20 09:27:21,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-20 09:27:21,926 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 09:27:21,929 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 09:27:21,930 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 09:27:21,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 09:27:21 BasicIcfg [2022-11-20 09:27:21,932 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 09:27:21,933 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 09:27:21,933 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 09:27:21,933 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 09:27:21,934 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:27:13" (3/4) ... [2022-11-20 09:27:21,937 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-20 09:27:21,943 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2022-11-20 09:27:21,943 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2022-11-20 09:27:21,944 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2022-11-20 09:27:21,950 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2022-11-20 09:27:21,950 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-20 09:27:21,951 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-20 09:27:21,951 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-20 09:27:21,990 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cb26446-b583-4061-aa7f-03c0e6999006/bin/uautomizer-ug76WZFUDN/witness.graphml [2022-11-20 09:27:21,990 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 09:27:21,991 INFO L158 Benchmark]: Toolchain (without parser) took 10158.48ms. Allocated memory was 148.9MB in the beginning and 251.7MB in the end (delta: 102.8MB). Free memory was 119.8MB in the beginning and 198.5MB in the end (delta: -78.7MB). Peak memory consumption was 27.2MB. Max. memory is 16.1GB. [2022-11-20 09:27:21,991 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 121.6MB. Free memory is still 88.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:27:21,991 INFO L158 Benchmark]: CACSL2BoogieTranslator took 667.79ms. Allocated memory is still 148.9MB. Free memory was 119.4MB in the beginning and 99.2MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-20 09:27:21,997 INFO L158 Benchmark]: Boogie Procedure Inliner took 76.08ms. Allocated memory is still 148.9MB. Free memory was 99.2MB in the beginning and 97.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:27:21,997 INFO L158 Benchmark]: Boogie Preprocessor took 48.33ms. Allocated memory is still 148.9MB. Free memory was 97.2MB in the beginning and 95.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:27:21,998 INFO L158 Benchmark]: RCFGBuilder took 611.78ms. Allocated memory is still 148.9MB. Free memory was 95.5MB in the beginning and 80.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-20 09:27:21,998 INFO L158 Benchmark]: TraceAbstraction took 8690.34ms. Allocated memory was 148.9MB in the beginning and 251.7MB in the end (delta: 102.8MB). Free memory was 80.0MB in the beginning and 200.6MB in the end (delta: -120.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 09:27:21,998 INFO L158 Benchmark]: Witness Printer took 57.16ms. Allocated memory is still 251.7MB. Free memory was 200.6MB in the beginning and 198.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 09:27:22,000 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 121.6MB. Free memory is still 88.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 667.79ms. Allocated memory is still 148.9MB. Free memory was 119.4MB in the beginning and 99.2MB in the end (delta: 20.1MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 76.08ms. Allocated memory is still 148.9MB. Free memory was 99.2MB in the beginning and 97.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.33ms. Allocated memory is still 148.9MB. Free memory was 97.2MB in the beginning and 95.5MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 611.78ms. Allocated memory is still 148.9MB. Free memory was 95.5MB in the beginning and 80.8MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 8690.34ms. Allocated memory was 148.9MB in the beginning and 251.7MB in the end (delta: 102.8MB). Free memory was 80.0MB in the beginning and 200.6MB in the end (delta: -120.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 57.16ms. Allocated memory is still 251.7MB. Free memory was 200.6MB in the beginning and 198.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.8s, 109 PlacesBefore, 39 PlacesAfterwards, 101 TransitionsBefore, 30 TransitionsAfterwards, 1800 CoEnabledTransitionPairs, 5 FixpointIterations, 31 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 100 TotalNumberOfCompositions, 3044 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1806, independent: 1730, independent conditional: 0, independent unconditional: 1730, dependent: 76, dependent conditional: 0, dependent unconditional: 76, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1233, independent: 1203, independent conditional: 0, independent unconditional: 1203, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1233, independent: 1197, independent conditional: 0, independent unconditional: 1197, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 36, independent: 6, independent conditional: 0, independent unconditional: 6, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 116, independent: 15, independent conditional: 0, independent unconditional: 15, dependent: 101, dependent conditional: 0, dependent unconditional: 101, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1806, independent: 527, independent conditional: 0, independent unconditional: 527, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 1233, unknown conditional: 0, unknown unconditional: 1233] , Statistics on independence cache: Total cache size (in pairs): 91, Positive cache size: 78, Positive conditional cache size: 0, Positive unconditional cache size: 78, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 18]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 776]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 124 locations, 11 error locations. Started 1 CEGAR loops. OverallTime: 8.5s, OverallIterations: 14, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 437 SdHoareTripleChecker+Valid, 0.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 437 mSDsluCounter, 159 SdHoareTripleChecker+Invalid, 0.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 92 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 898 IncrementalHoareTripleChecker+Invalid, 944 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 67 mSDtfsCounter, 898 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=502occurred in iteration=2, InterpolantAutomatonStates: 79, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 14 MinimizatonAttempts, 530 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 173 NumberOfCodeBlocks, 173 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 1005 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-20 09:27:22,017 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4cb26446-b583-4061-aa7f-03c0e6999006/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE