./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/locks/test_locks_8.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15276ce-c863-413f-b100-f0ca83698a99/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15276ce-c863-413f-b100-f0ca83698a99/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15276ce-c863-413f-b100-f0ca83698a99/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15276ce-c863-413f-b100-f0ca83698a99/bin/uautomizer-ZsLfNo2U6R/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/locks/test_locks_8.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15276ce-c863-413f-b100-f0ca83698a99/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15276ce-c863-413f-b100-f0ca83698a99/bin/uautomizer-ZsLfNo2U6R --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 b7157ba450d9d62b74d19027a6860eb7210e35a76921ceb23a9c0a69add85337 --- 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-38b53e6 [2022-11-25 17:17:57,819 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:17:57,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:17:57,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:17:57,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:17:57,880 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:17:57,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:17:57,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:17:57,887 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:17:57,888 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:17:57,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:17:57,891 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:17:57,891 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:17:57,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:17:57,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:17:57,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:17:57,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:17:57,898 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:17:57,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:17:57,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:17:57,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:17:57,913 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:17:57,915 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:17:57,916 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:17:57,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:17:57,933 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:17:57,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:17:57,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:17:57,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:17:57,936 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:17:57,936 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:17:57,937 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:17:57,938 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:17:57,939 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:17:57,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:17:57,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:17:57,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:17:57,942 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:17:57,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:17:57,947 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:17:57,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:17:57,949 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15276ce-c863-413f-b100-f0ca83698a99/bin/uautomizer-ZsLfNo2U6R/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-25 17:17:57,992 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:17:57,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:17:57,993 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:17:57,993 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:17:57,994 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:17:57,994 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:17:57,995 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:17:57,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:17:57,995 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:17:57,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:17:57,997 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:17:57,997 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:17:57,997 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:17:57,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:17:57,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:17:57,998 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-25 17:17:57,998 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-25 17:17:57,998 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-25 17:17:57,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:17:57,999 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 17:17:57,999 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:17:57,999 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:17:57,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:17:58,000 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:17:58,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:17:58,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:17:58,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:17:58,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:17:58,002 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:17:58,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:17:58,002 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:17:58,002 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:17:58,003 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:17:58,003 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_c15276ce-c863-413f-b100-f0ca83698a99/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15276ce-c863-413f-b100-f0ca83698a99/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b7157ba450d9d62b74d19027a6860eb7210e35a76921ceb23a9c0a69add85337 [2022-11-25 17:17:58,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:17:58,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:17:58,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:17:58,377 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:17:58,378 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:17:58,379 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15276ce-c863-413f-b100-f0ca83698a99/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/locks/test_locks_8.c [2022-11-25 17:18:01,396 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:18:01,622 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:18:01,623 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15276ce-c863-413f-b100-f0ca83698a99/sv-benchmarks/c/locks/test_locks_8.c [2022-11-25 17:18:01,629 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15276ce-c863-413f-b100-f0ca83698a99/bin/uautomizer-ZsLfNo2U6R/data/c81228d12/11cf5d38e3384c57a7b95a7fd702dcd9/FLAG2dcfb354d [2022-11-25 17:18:01,643 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15276ce-c863-413f-b100-f0ca83698a99/bin/uautomizer-ZsLfNo2U6R/data/c81228d12/11cf5d38e3384c57a7b95a7fd702dcd9 [2022-11-25 17:18:01,646 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:18:01,648 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:18:01,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:18:01,650 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:18:01,654 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:18:01,654 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:18:01" (1/1) ... [2022-11-25 17:18:01,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67fbf5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:01, skipping insertion in model container [2022-11-25 17:18:01,656 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:18:01" (1/1) ... [2022-11-25 17:18:01,664 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:18:01,683 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:18:01,901 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_c15276ce-c863-413f-b100-f0ca83698a99/sv-benchmarks/c/locks/test_locks_8.c[3218,3231] [2022-11-25 17:18:01,905 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:18:01,915 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:18:01,935 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_c15276ce-c863-413f-b100-f0ca83698a99/sv-benchmarks/c/locks/test_locks_8.c[3218,3231] [2022-11-25 17:18:01,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:18:01,955 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:18:01,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:01 WrapperNode [2022-11-25 17:18:01,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:18:01,957 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:18:01,957 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:18:01,957 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:18:01,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:01" (1/1) ... [2022-11-25 17:18:01,971 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:01" (1/1) ... [2022-11-25 17:18:01,992 INFO L138 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 116 [2022-11-25 17:18:01,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:18:01,993 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:18:01,993 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:18:01,994 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:18:02,004 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:01" (1/1) ... [2022-11-25 17:18:02,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:01" (1/1) ... [2022-11-25 17:18:02,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:01" (1/1) ... [2022-11-25 17:18:02,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:01" (1/1) ... [2022-11-25 17:18:02,010 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:01" (1/1) ... [2022-11-25 17:18:02,015 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:01" (1/1) ... [2022-11-25 17:18:02,016 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:01" (1/1) ... [2022-11-25 17:18:02,018 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:01" (1/1) ... [2022-11-25 17:18:02,019 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:18:02,020 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:18:02,021 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:18:02,021 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:18:02,022 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:01" (1/1) ... [2022-11-25 17:18:02,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:18:02,041 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15276ce-c863-413f-b100-f0ca83698a99/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:18:02,056 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15276ce-c863-413f-b100-f0ca83698a99/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:18:02,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15276ce-c863-413f-b100-f0ca83698a99/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:18:02,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:18:02,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:18:02,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:18:02,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:18:02,181 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:18:02,184 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:18:02,473 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:18:02,480 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:18:02,481 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-11-25 17:18:02,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:18:02 BoogieIcfgContainer [2022-11-25 17:18:02,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:18:02,487 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:18:02,487 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:18:02,490 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:18:02,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:18:01" (1/3) ... [2022-11-25 17:18:02,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43de51d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:18:02, skipping insertion in model container [2022-11-25 17:18:02,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:18:01" (2/3) ... [2022-11-25 17:18:02,492 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43de51d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:18:02, skipping insertion in model container [2022-11-25 17:18:02,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:18:02" (3/3) ... [2022-11-25 17:18:02,493 INFO L112 eAbstractionObserver]: Analyzing ICFG test_locks_8.c [2022-11-25 17:18:02,514 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:18:02,514 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 17:18:02,573 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:18:02,583 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=PETRI_NET, 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;@4f9c1a83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:18:02,583 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 17:18:02,588 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 32 states have (on average 1.90625) internal successors, (61), 34 states have internal predecessors, (61), 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) [2022-11-25 17:18:02,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-25 17:18:02,595 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:02,596 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-25 17:18:02,596 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 17:18:02,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:02,604 INFO L85 PathProgramCache]: Analyzing trace with hash 28702379, now seen corresponding path program 1 times [2022-11-25 17:18:02,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:02,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522505242] [2022-11-25 17:18:02,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:02,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:02,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:02,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:02,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:02,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [522505242] [2022-11-25 17:18:02,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [522505242] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:02,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:02,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:18:02,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858126227] [2022-11-25 17:18:02,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:02,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 17:18:02,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:02,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 17:18:02,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:18:02,863 INFO L87 Difference]: Start difference. First operand has 35 states, 32 states have (on average 1.90625) internal successors, (61), 34 states have internal predecessors, (61), 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, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-25 17:18:02,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:02,884 INFO L93 Difference]: Finished difference Result 35 states and 58 transitions. [2022-11-25 17:18:02,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 17:18:02,889 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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 5 [2022-11-25 17:18:02,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:02,911 INFO L225 Difference]: With dead ends: 35 [2022-11-25 17:18:02,911 INFO L226 Difference]: Without dead ends: 33 [2022-11-25 17:18:02,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 17:18:02,923 INFO L413 NwaCegarLoop]: 58 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:02,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:18:02,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-11-25 17:18:02,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-11-25 17:18:02,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 31 states have (on average 1.8064516129032258) internal successors, (56), 32 states have internal predecessors, (56), 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) [2022-11-25 17:18:02,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 56 transitions. [2022-11-25 17:18:02,967 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 56 transitions. Word has length 5 [2022-11-25 17:18:02,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:02,968 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 56 transitions. [2022-11-25 17:18:02,968 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 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) [2022-11-25 17:18:02,968 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 56 transitions. [2022-11-25 17:18:02,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 17:18:02,969 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:02,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 17:18:02,970 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:18:02,970 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 17:18:02,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:02,972 INFO L85 PathProgramCache]: Analyzing trace with hash 889696875, now seen corresponding path program 1 times [2022-11-25 17:18:02,972 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:02,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328937218] [2022-11-25 17:18:02,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:02,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:02,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:03,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:03,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:03,057 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328937218] [2022-11-25 17:18:03,057 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328937218] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:03,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:03,058 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:18:03,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419451407] [2022-11-25 17:18:03,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:03,060 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:18:03,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:03,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:18:03,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:03,062 INFO L87 Difference]: Start difference. First operand 33 states and 56 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-25 17:18:03,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:03,073 INFO L93 Difference]: Finished difference Result 32 states and 55 transitions. [2022-11-25 17:18:03,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:18:03,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-11-25 17:18:03,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:03,075 INFO L225 Difference]: With dead ends: 32 [2022-11-25 17:18:03,075 INFO L226 Difference]: Without dead ends: 30 [2022-11-25 17:18:03,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:03,078 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 50 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 1 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 1 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:03,079 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 55 Invalid, 1 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 1 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:18:03,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2022-11-25 17:18:03,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2022-11-25 17:18:03,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.8275862068965518) internal successors, (53), 29 states have internal predecessors, (53), 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) [2022-11-25 17:18:03,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 53 transitions. [2022-11-25 17:18:03,085 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 53 transitions. Word has length 6 [2022-11-25 17:18:03,086 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:03,086 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 53 transitions. [2022-11-25 17:18:03,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-11-25 17:18:03,087 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 53 transitions. [2022-11-25 17:18:03,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 17:18:03,087 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:03,088 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:03,088 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 17:18:03,089 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 17:18:03,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:03,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1577492323, now seen corresponding path program 1 times [2022-11-25 17:18:03,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:03,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1894069066] [2022-11-25 17:18:03,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:03,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:03,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:03,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:03,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:03,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1894069066] [2022-11-25 17:18:03,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1894069066] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:03,168 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:03,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:18:03,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405370455] [2022-11-25 17:18:03,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:03,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:18:03,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:03,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:18:03,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:03,171 INFO L87 Difference]: Start difference. First operand 30 states and 53 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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) [2022-11-25 17:18:03,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:03,193 INFO L93 Difference]: Finished difference Result 57 states and 101 transitions. [2022-11-25 17:18:03,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:18:03,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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 [2022-11-25 17:18:03,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:03,195 INFO L225 Difference]: With dead ends: 57 [2022-11-25 17:18:03,195 INFO L226 Difference]: Without dead ends: 57 [2022-11-25 17:18:03,196 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:03,197 INFO L413 NwaCegarLoop]: 55 mSDtfsCounter, 38 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:03,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 103 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:18:03,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-25 17:18:03,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 39. [2022-11-25 17:18:03,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 38 states have (on average 1.8421052631578947) internal successors, (70), 38 states have internal predecessors, (70), 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) [2022-11-25 17:18:03,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 70 transitions. [2022-11-25 17:18:03,205 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 70 transitions. Word has length 15 [2022-11-25 17:18:03,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:03,205 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 70 transitions. [2022-11-25 17:18:03,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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) [2022-11-25 17:18:03,206 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 70 transitions. [2022-11-25 17:18:03,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-25 17:18:03,206 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:03,207 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:03,207 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:18:03,207 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 17:18:03,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:03,208 INFO L85 PathProgramCache]: Analyzing trace with hash -876427745, now seen corresponding path program 1 times [2022-11-25 17:18:03,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:03,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1311080899] [2022-11-25 17:18:03,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:03,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:03,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:03,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:03,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:03,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1311080899] [2022-11-25 17:18:03,323 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1311080899] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:03,323 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:03,324 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:18:03,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633630688] [2022-11-25 17:18:03,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:03,325 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:18:03,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:03,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:18:03,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:03,327 INFO L87 Difference]: Start difference. First operand 39 states and 70 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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) [2022-11-25 17:18:03,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:03,368 INFO L93 Difference]: Finished difference Result 57 states and 99 transitions. [2022-11-25 17:18:03,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:18:03,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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 [2022-11-25 17:18:03,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:03,370 INFO L225 Difference]: With dead ends: 57 [2022-11-25 17:18:03,371 INFO L226 Difference]: Without dead ends: 57 [2022-11-25 17:18:03,371 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:03,373 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 38 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 115 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:03,375 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 115 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:18:03,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-11-25 17:18:03,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 55. [2022-11-25 17:18:03,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 54 states have (on average 1.8148148148148149) internal successors, (98), 54 states have internal predecessors, (98), 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) [2022-11-25 17:18:03,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 98 transitions. [2022-11-25 17:18:03,383 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 98 transitions. Word has length 15 [2022-11-25 17:18:03,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:03,384 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 98 transitions. [2022-11-25 17:18:03,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 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) [2022-11-25 17:18:03,384 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 98 transitions. [2022-11-25 17:18:03,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 17:18:03,385 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:03,385 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:03,385 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-25 17:18:03,386 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 17:18:03,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:03,387 INFO L85 PathProgramCache]: Analyzing trace with hash -1657407761, now seen corresponding path program 1 times [2022-11-25 17:18:03,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:03,387 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290731780] [2022-11-25 17:18:03,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:03,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:03,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:03,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:03,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:03,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290731780] [2022-11-25 17:18:03,500 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290731780] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:03,501 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:03,501 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:18:03,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844864891] [2022-11-25 17:18:03,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:03,502 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:18:03,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:03,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:18:03,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:03,503 INFO L87 Difference]: Start difference. First operand 55 states and 98 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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) [2022-11-25 17:18:03,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:03,547 INFO L93 Difference]: Finished difference Result 60 states and 101 transitions. [2022-11-25 17:18:03,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:18:03,547 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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 [2022-11-25 17:18:03,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:03,549 INFO L225 Difference]: With dead ends: 60 [2022-11-25 17:18:03,549 INFO L226 Difference]: Without dead ends: 60 [2022-11-25 17:18:03,549 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:03,550 INFO L413 NwaCegarLoop]: 82 mSDtfsCounter, 40 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 128 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:03,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 128 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:18:03,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-11-25 17:18:03,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 58. [2022-11-25 17:18:03,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.7543859649122806) internal successors, (100), 57 states have internal predecessors, (100), 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) [2022-11-25 17:18:03,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 100 transitions. [2022-11-25 17:18:03,561 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 100 transitions. Word has length 16 [2022-11-25 17:18:03,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:03,562 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 100 transitions. [2022-11-25 17:18:03,562 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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) [2022-11-25 17:18:03,562 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 100 transitions. [2022-11-25 17:18:03,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 17:18:03,563 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:03,563 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:03,563 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-25 17:18:03,564 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 17:18:03,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:03,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1399242323, now seen corresponding path program 1 times [2022-11-25 17:18:03,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:03,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1185634012] [2022-11-25 17:18:03,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:03,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:03,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:03,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:03,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:03,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1185634012] [2022-11-25 17:18:03,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1185634012] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:03,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:03,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:18:03,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161426214] [2022-11-25 17:18:03,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:03,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:18:03,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:03,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:18:03,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:03,622 INFO L87 Difference]: Start difference. First operand 58 states and 100 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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) [2022-11-25 17:18:03,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:03,638 INFO L93 Difference]: Finished difference Result 107 states and 186 transitions. [2022-11-25 17:18:03,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:18:03,638 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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 [2022-11-25 17:18:03,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:03,639 INFO L225 Difference]: With dead ends: 107 [2022-11-25 17:18:03,640 INFO L226 Difference]: Without dead ends: 107 [2022-11-25 17:18:03,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:03,641 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 35 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:03,642 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 101 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:18:03,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2022-11-25 17:18:03,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 77. [2022-11-25 17:18:03,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77 states, 76 states have (on average 1.75) internal successors, (133), 76 states have internal predecessors, (133), 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) [2022-11-25 17:18:03,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77 states to 77 states and 133 transitions. [2022-11-25 17:18:03,649 INFO L78 Accepts]: Start accepts. Automaton has 77 states and 133 transitions. Word has length 16 [2022-11-25 17:18:03,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:03,650 INFO L495 AbstractCegarLoop]: Abstraction has 77 states and 133 transitions. [2022-11-25 17:18:03,650 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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) [2022-11-25 17:18:03,650 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states and 133 transitions. [2022-11-25 17:18:03,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-25 17:18:03,651 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:03,651 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:03,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-25 17:18:03,652 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 17:18:03,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:03,653 INFO L85 PathProgramCache]: Analyzing trace with hash -698177745, now seen corresponding path program 1 times [2022-11-25 17:18:03,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:03,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [624690857] [2022-11-25 17:18:03,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:03,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:03,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:03,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:03,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:03,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [624690857] [2022-11-25 17:18:03,718 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [624690857] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:03,718 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:03,718 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:18:03,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637324943] [2022-11-25 17:18:03,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:03,719 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:18:03,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:03,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:18:03,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:03,720 INFO L87 Difference]: Start difference. First operand 77 states and 133 transitions. Second operand has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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) [2022-11-25 17:18:03,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:03,744 INFO L93 Difference]: Finished difference Result 109 states and 184 transitions. [2022-11-25 17:18:03,745 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:18:03,745 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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 [2022-11-25 17:18:03,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:03,746 INFO L225 Difference]: With dead ends: 109 [2022-11-25 17:18:03,746 INFO L226 Difference]: Without dead ends: 109 [2022-11-25 17:18:03,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:03,748 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 37 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:03,748 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 116 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:18:03,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-25 17:18:03,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 107. [2022-11-25 17:18:03,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 106 states have (on average 1.7264150943396226) internal successors, (183), 106 states have internal predecessors, (183), 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) [2022-11-25 17:18:03,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 183 transitions. [2022-11-25 17:18:03,757 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 183 transitions. Word has length 16 [2022-11-25 17:18:03,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:03,758 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 183 transitions. [2022-11-25 17:18:03,758 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.333333333333333) internal successors, (16), 3 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) [2022-11-25 17:18:03,758 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 183 transitions. [2022-11-25 17:18:03,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 17:18:03,759 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:03,759 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:03,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-25 17:18:03,760 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 17:18:03,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:03,760 INFO L85 PathProgramCache]: Analyzing trace with hash -426624716, now seen corresponding path program 1 times [2022-11-25 17:18:03,760 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:03,761 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495670236] [2022-11-25 17:18:03,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:03,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:03,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:03,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:03,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:03,811 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495670236] [2022-11-25 17:18:03,811 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495670236] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:03,811 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:03,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:18:03,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318860857] [2022-11-25 17:18:03,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:03,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:18:03,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:03,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:18:03,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:03,815 INFO L87 Difference]: Start difference. First operand 107 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-11-25 17:18:03,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:03,840 INFO L93 Difference]: Finished difference Result 111 states and 184 transitions. [2022-11-25 17:18:03,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:18:03,841 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2022-11-25 17:18:03,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:03,842 INFO L225 Difference]: With dead ends: 111 [2022-11-25 17:18:03,842 INFO L226 Difference]: Without dead ends: 111 [2022-11-25 17:18:03,842 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:03,843 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 39 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:03,844 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 124 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:18:03,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2022-11-25 17:18:03,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 109. [2022-11-25 17:18:03,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 108 states have (on average 1.6944444444444444) internal successors, (183), 108 states have internal predecessors, (183), 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) [2022-11-25 17:18:03,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 183 transitions. [2022-11-25 17:18:03,853 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 183 transitions. Word has length 17 [2022-11-25 17:18:03,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:03,853 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 183 transitions. [2022-11-25 17:18:03,853 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-11-25 17:18:03,853 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 183 transitions. [2022-11-25 17:18:03,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 17:18:03,854 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:03,855 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:03,855 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-25 17:18:03,855 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 17:18:03,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:03,856 INFO L85 PathProgramCache]: Analyzing trace with hash -168459278, now seen corresponding path program 1 times [2022-11-25 17:18:03,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:03,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [980266663] [2022-11-25 17:18:03,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:03,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:03,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:03,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:03,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:03,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [980266663] [2022-11-25 17:18:03,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [980266663] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:03,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:03,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:18:03,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717268907] [2022-11-25 17:18:03,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:03,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:18:03,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:03,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:18:03,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:03,897 INFO L87 Difference]: Start difference. First operand 109 states and 183 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-11-25 17:18:03,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:03,919 INFO L93 Difference]: Finished difference Result 207 states and 340 transitions. [2022-11-25 17:18:03,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:18:03,919 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2022-11-25 17:18:03,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:03,920 INFO L225 Difference]: With dead ends: 207 [2022-11-25 17:18:03,921 INFO L226 Difference]: Without dead ends: 207 [2022-11-25 17:18:03,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:03,922 INFO L413 NwaCegarLoop]: 57 mSDtfsCounter, 37 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:03,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 103 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:18:03,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2022-11-25 17:18:03,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 205. [2022-11-25 17:18:03,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 204 states have (on average 1.661764705882353) internal successors, (339), 204 states have internal predecessors, (339), 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) [2022-11-25 17:18:03,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 339 transitions. [2022-11-25 17:18:03,946 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 339 transitions. Word has length 17 [2022-11-25 17:18:03,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:03,946 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 339 transitions. [2022-11-25 17:18:03,947 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-11-25 17:18:03,947 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 339 transitions. [2022-11-25 17:18:03,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-25 17:18:03,948 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:03,948 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:03,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-25 17:18:03,949 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 17:18:03,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:03,950 INFO L85 PathProgramCache]: Analyzing trace with hash -869523856, now seen corresponding path program 1 times [2022-11-25 17:18:03,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:03,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752661311] [2022-11-25 17:18:03,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:03,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:03,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:03,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:03,997 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752661311] [2022-11-25 17:18:03,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752661311] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:03,998 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:03,998 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:18:03,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409785800] [2022-11-25 17:18:03,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:03,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:18:03,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:03,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:18:03,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:04,000 INFO L87 Difference]: Start difference. First operand 205 states and 339 transitions. Second operand has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-11-25 17:18:04,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:04,011 INFO L93 Difference]: Finished difference Result 255 states and 424 transitions. [2022-11-25 17:18:04,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:18:04,012 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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 17 [2022-11-25 17:18:04,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:04,013 INFO L225 Difference]: With dead ends: 255 [2022-11-25 17:18:04,013 INFO L226 Difference]: Without dead ends: 255 [2022-11-25 17:18:04,014 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:04,015 INFO L413 NwaCegarLoop]: 89 mSDtfsCounter, 32 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:04,015 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 134 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:18:04,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states. [2022-11-25 17:18:04,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 205. [2022-11-25 17:18:04,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 205 states, 204 states have (on average 1.642156862745098) internal successors, (335), 204 states have internal predecessors, (335), 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) [2022-11-25 17:18:04,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 335 transitions. [2022-11-25 17:18:04,027 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 335 transitions. Word has length 17 [2022-11-25 17:18:04,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:04,028 INFO L495 AbstractCegarLoop]: Abstraction has 205 states and 335 transitions. [2022-11-25 17:18:04,028 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.666666666666667) internal successors, (17), 3 states have internal predecessors, (17), 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) [2022-11-25 17:18:04,028 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 335 transitions. [2022-11-25 17:18:04,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-25 17:18:04,029 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:04,030 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:04,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-25 17:18:04,030 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 17:18:04,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:04,031 INFO L85 PathProgramCache]: Analyzing trace with hash -927055644, now seen corresponding path program 1 times [2022-11-25 17:18:04,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:04,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261521705] [2022-11-25 17:18:04,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:04,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:04,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:04,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:04,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261521705] [2022-11-25 17:18:04,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261521705] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:04,063 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:04,063 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:18:04,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235748842] [2022-11-25 17:18:04,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:04,064 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:18:04,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:04,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:18:04,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:04,065 INFO L87 Difference]: Start difference. First operand 205 states and 335 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2022-11-25 17:18:04,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:04,078 INFO L93 Difference]: Finished difference Result 371 states and 608 transitions. [2022-11-25 17:18:04,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:18:04,078 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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 [2022-11-25 17:18:04,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:04,080 INFO L225 Difference]: With dead ends: 371 [2022-11-25 17:18:04,080 INFO L226 Difference]: Without dead ends: 371 [2022-11-25 17:18:04,081 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:04,081 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 29 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:04,082 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 97 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:18:04,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-11-25 17:18:04,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 289. [2022-11-25 17:18:04,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289 states, 288 states have (on average 1.6076388888888888) internal successors, (463), 288 states have internal predecessors, (463), 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) [2022-11-25 17:18:04,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289 states to 289 states and 463 transitions. [2022-11-25 17:18:04,096 INFO L78 Accepts]: Start accepts. Automaton has 289 states and 463 transitions. Word has length 18 [2022-11-25 17:18:04,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:04,096 INFO L495 AbstractCegarLoop]: Abstraction has 289 states and 463 transitions. [2022-11-25 17:18:04,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2022-11-25 17:18:04,097 INFO L276 IsEmpty]: Start isEmpty. Operand 289 states and 463 transitions. [2022-11-25 17:18:04,098 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-11-25 17:18:04,099 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:04,099 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:04,099 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-25 17:18:04,099 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 17:18:04,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:04,100 INFO L85 PathProgramCache]: Analyzing trace with hash -225991066, now seen corresponding path program 1 times [2022-11-25 17:18:04,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:04,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657759680] [2022-11-25 17:18:04,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:04,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:04,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:04,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:04,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657759680] [2022-11-25 17:18:04,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1657759680] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:04,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:04,131 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:18:04,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548717471] [2022-11-25 17:18:04,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:04,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:18:04,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:04,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:18:04,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:04,133 INFO L87 Difference]: Start difference. First operand 289 states and 463 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2022-11-25 17:18:04,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:04,147 INFO L93 Difference]: Finished difference Result 395 states and 620 transitions. [2022-11-25 17:18:04,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:18:04,147 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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 [2022-11-25 17:18:04,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:04,149 INFO L225 Difference]: With dead ends: 395 [2022-11-25 17:18:04,149 INFO L226 Difference]: Without dead ends: 395 [2022-11-25 17:18:04,150 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:04,151 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 35 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:04,151 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 118 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:18:04,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2022-11-25 17:18:04,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 393. [2022-11-25 17:18:04,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 392 states have (on average 1.5790816326530612) internal successors, (619), 392 states have internal predecessors, (619), 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) [2022-11-25 17:18:04,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 619 transitions. [2022-11-25 17:18:04,168 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 619 transitions. Word has length 18 [2022-11-25 17:18:04,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:04,169 INFO L495 AbstractCegarLoop]: Abstraction has 393 states and 619 transitions. [2022-11-25 17:18:04,169 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 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) [2022-11-25 17:18:04,169 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 619 transitions. [2022-11-25 17:18:04,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 17:18:04,171 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:04,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:04,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-25 17:18:04,172 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 17:18:04,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:04,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1326261127, now seen corresponding path program 1 times [2022-11-25 17:18:04,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:04,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1731158288] [2022-11-25 17:18:04,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:04,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:04,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:04,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:04,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:04,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1731158288] [2022-11-25 17:18:04,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1731158288] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:04,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:04,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:18:04,206 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [626146460] [2022-11-25 17:18:04,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:04,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:18:04,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:04,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:18:04,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:04,208 INFO L87 Difference]: Start difference. First operand 393 states and 619 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-11-25 17:18:04,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:04,221 INFO L93 Difference]: Finished difference Result 407 states and 628 transitions. [2022-11-25 17:18:04,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:18:04,221 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2022-11-25 17:18:04,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:04,223 INFO L225 Difference]: With dead ends: 407 [2022-11-25 17:18:04,223 INFO L226 Difference]: Without dead ends: 407 [2022-11-25 17:18:04,224 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:04,225 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 37 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:04,225 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 116 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:18:04,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2022-11-25 17:18:04,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 405. [2022-11-25 17:18:04,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 405 states, 404 states have (on average 1.551980198019802) internal successors, (627), 404 states have internal predecessors, (627), 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) [2022-11-25 17:18:04,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 405 states to 405 states and 627 transitions. [2022-11-25 17:18:04,239 INFO L78 Accepts]: Start accepts. Automaton has 405 states and 627 transitions. Word has length 19 [2022-11-25 17:18:04,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:04,241 INFO L495 AbstractCegarLoop]: Abstraction has 405 states and 627 transitions. [2022-11-25 17:18:04,241 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-11-25 17:18:04,241 INFO L276 IsEmpty]: Start isEmpty. Operand 405 states and 627 transitions. [2022-11-25 17:18:04,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 17:18:04,247 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:04,248 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:04,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-25 17:18:04,250 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 17:18:04,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:04,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1584426565, now seen corresponding path program 1 times [2022-11-25 17:18:04,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:04,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172258061] [2022-11-25 17:18:04,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:04,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:04,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:04,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:04,293 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:04,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172258061] [2022-11-25 17:18:04,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172258061] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:04,294 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:04,294 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:18:04,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994602989] [2022-11-25 17:18:04,294 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:04,295 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:18:04,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:04,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:18:04,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:04,296 INFO L87 Difference]: Start difference. First operand 405 states and 627 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-11-25 17:18:04,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:04,311 INFO L93 Difference]: Finished difference Result 711 states and 1100 transitions. [2022-11-25 17:18:04,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:18:04,312 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2022-11-25 17:18:04,312 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:04,315 INFO L225 Difference]: With dead ends: 711 [2022-11-25 17:18:04,315 INFO L226 Difference]: Without dead ends: 711 [2022-11-25 17:18:04,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:04,316 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 26 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:04,317 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 95 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:18:04,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2022-11-25 17:18:04,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 581. [2022-11-25 17:18:04,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 581 states, 580 states have (on average 1.5086206896551724) internal successors, (875), 580 states have internal predecessors, (875), 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) [2022-11-25 17:18:04,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 581 states to 581 states and 875 transitions. [2022-11-25 17:18:04,333 INFO L78 Accepts]: Start accepts. Automaton has 581 states and 875 transitions. Word has length 19 [2022-11-25 17:18:04,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:04,334 INFO L495 AbstractCegarLoop]: Abstraction has 581 states and 875 transitions. [2022-11-25 17:18:04,334 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-11-25 17:18:04,334 INFO L276 IsEmpty]: Start isEmpty. Operand 581 states and 875 transitions. [2022-11-25 17:18:04,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-11-25 17:18:04,336 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:04,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:04,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-25 17:18:04,337 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 17:18:04,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:04,337 INFO L85 PathProgramCache]: Analyzing trace with hash -2009476153, now seen corresponding path program 1 times [2022-11-25 17:18:04,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:04,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [417975391] [2022-11-25 17:18:04,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:04,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:04,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:04,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:04,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:04,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [417975391] [2022-11-25 17:18:04,367 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [417975391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:04,367 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:04,367 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:18:04,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900432802] [2022-11-25 17:18:04,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:04,368 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:18:04,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:04,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:18:04,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:04,369 INFO L87 Difference]: Start difference. First operand 581 states and 875 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-11-25 17:18:04,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:04,387 INFO L93 Difference]: Finished difference Result 775 states and 1140 transitions. [2022-11-25 17:18:04,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:18:04,388 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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 19 [2022-11-25 17:18:04,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:04,392 INFO L225 Difference]: With dead ends: 775 [2022-11-25 17:18:04,392 INFO L226 Difference]: Without dead ends: 775 [2022-11-25 17:18:04,392 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:04,393 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 34 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:04,394 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 119 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:18:04,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 775 states. [2022-11-25 17:18:04,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 775 to 773. [2022-11-25 17:18:04,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 773 states, 772 states have (on average 1.4753886010362693) internal successors, (1139), 772 states have internal predecessors, (1139), 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) [2022-11-25 17:18:04,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 773 states to 773 states and 1139 transitions. [2022-11-25 17:18:04,414 INFO L78 Accepts]: Start accepts. Automaton has 773 states and 1139 transitions. Word has length 19 [2022-11-25 17:18:04,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:04,414 INFO L495 AbstractCegarLoop]: Abstraction has 773 states and 1139 transitions. [2022-11-25 17:18:04,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 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) [2022-11-25 17:18:04,415 INFO L276 IsEmpty]: Start isEmpty. Operand 773 states and 1139 transitions. [2022-11-25 17:18:04,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 17:18:04,416 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:04,416 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:04,416 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-25 17:18:04,417 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 17:18:04,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:04,417 INFO L85 PathProgramCache]: Analyzing trace with hash 1872798619, now seen corresponding path program 1 times [2022-11-25 17:18:04,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:04,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384999182] [2022-11-25 17:18:04,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:04,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:04,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:04,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:04,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:04,448 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384999182] [2022-11-25 17:18:04,448 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384999182] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:04,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:04,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:18:04,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300317379] [2022-11-25 17:18:04,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:04,449 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:18:04,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:04,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:18:04,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:04,450 INFO L87 Difference]: Start difference. First operand 773 states and 1139 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-25 17:18:04,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:04,467 INFO L93 Difference]: Finished difference Result 791 states and 1140 transitions. [2022-11-25 17:18:04,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:18:04,468 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2022-11-25 17:18:04,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:04,471 INFO L225 Difference]: With dead ends: 791 [2022-11-25 17:18:04,472 INFO L226 Difference]: Without dead ends: 791 [2022-11-25 17:18:04,472 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:04,473 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 36 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:04,473 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 112 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:18:04,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 791 states. [2022-11-25 17:18:04,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 791 to 789. [2022-11-25 17:18:04,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 788 states have (on average 1.4454314720812182) internal successors, (1139), 788 states have internal predecessors, (1139), 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) [2022-11-25 17:18:04,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1139 transitions. [2022-11-25 17:18:04,491 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1139 transitions. Word has length 20 [2022-11-25 17:18:04,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:04,492 INFO L495 AbstractCegarLoop]: Abstraction has 789 states and 1139 transitions. [2022-11-25 17:18:04,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-25 17:18:04,492 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1139 transitions. [2022-11-25 17:18:04,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 17:18:04,493 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:04,493 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:04,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-11-25 17:18:04,494 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 17:18:04,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:04,494 INFO L85 PathProgramCache]: Analyzing trace with hash 2130964057, now seen corresponding path program 1 times [2022-11-25 17:18:04,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:04,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578908027] [2022-11-25 17:18:04,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:04,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:04,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:04,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:04,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:04,518 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578908027] [2022-11-25 17:18:04,519 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578908027] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:04,519 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:04,519 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:18:04,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359022358] [2022-11-25 17:18:04,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:04,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:18:04,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:04,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:18:04,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:04,520 INFO L87 Difference]: Start difference. First operand 789 states and 1139 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-25 17:18:04,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:04,536 INFO L93 Difference]: Finished difference Result 1351 states and 1940 transitions. [2022-11-25 17:18:04,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:18:04,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2022-11-25 17:18:04,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:04,541 INFO L225 Difference]: With dead ends: 1351 [2022-11-25 17:18:04,541 INFO L226 Difference]: Without dead ends: 1351 [2022-11-25 17:18:04,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:04,542 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 23 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:04,542 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 93 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:18:04,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1351 states. [2022-11-25 17:18:04,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1351 to 1157. [2022-11-25 17:18:04,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1156 states have (on average 1.4005190311418685) internal successors, (1619), 1156 states have internal predecessors, (1619), 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) [2022-11-25 17:18:04,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1619 transitions. [2022-11-25 17:18:04,582 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1619 transitions. Word has length 20 [2022-11-25 17:18:04,582 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:04,582 INFO L495 AbstractCegarLoop]: Abstraction has 1157 states and 1619 transitions. [2022-11-25 17:18:04,582 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-25 17:18:04,582 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1619 transitions. [2022-11-25 17:18:04,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-25 17:18:04,584 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:04,584 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:04,585 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-11-25 17:18:04,585 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 17:18:04,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:04,586 INFO L85 PathProgramCache]: Analyzing trace with hash -1462938661, now seen corresponding path program 1 times [2022-11-25 17:18:04,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:04,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796236671] [2022-11-25 17:18:04,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:04,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:04,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:04,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:04,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:04,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796236671] [2022-11-25 17:18:04,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796236671] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:04,608 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:04,608 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:18:04,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613463888] [2022-11-25 17:18:04,608 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:04,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:18:04,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:04,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:18:04,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:04,610 INFO L87 Difference]: Start difference. First operand 1157 states and 1619 transitions. Second operand has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-25 17:18:04,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:04,627 INFO L93 Difference]: Finished difference Result 1511 states and 2052 transitions. [2022-11-25 17:18:04,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:18:04,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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 20 [2022-11-25 17:18:04,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:04,633 INFO L225 Difference]: With dead ends: 1511 [2022-11-25 17:18:04,633 INFO L226 Difference]: Without dead ends: 1511 [2022-11-25 17:18:04,633 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:04,634 INFO L413 NwaCegarLoop]: 78 mSDtfsCounter, 33 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:04,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 120 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:18:04,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1511 states. [2022-11-25 17:18:04,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1511 to 1509. [2022-11-25 17:18:04,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1508 states have (on average 1.360079575596817) internal successors, (2051), 1508 states have internal predecessors, (2051), 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) [2022-11-25 17:18:04,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 2051 transitions. [2022-11-25 17:18:04,665 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 2051 transitions. Word has length 20 [2022-11-25 17:18:04,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:04,666 INFO L495 AbstractCegarLoop]: Abstraction has 1509 states and 2051 transitions. [2022-11-25 17:18:04,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.666666666666667) internal successors, (20), 3 states have internal predecessors, (20), 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) [2022-11-25 17:18:04,670 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 2051 transitions. [2022-11-25 17:18:04,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 17:18:04,675 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:04,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:04,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-11-25 17:18:04,675 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 17:18:04,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:04,676 INFO L85 PathProgramCache]: Analyzing trace with hash 1635592028, now seen corresponding path program 1 times [2022-11-25 17:18:04,676 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:04,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321382075] [2022-11-25 17:18:04,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:04,676 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:04,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:04,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:04,724 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321382075] [2022-11-25 17:18:04,724 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321382075] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:04,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:04,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:18:04,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934350155] [2022-11-25 17:18:04,725 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:04,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:18:04,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:04,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:18:04,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:04,727 INFO L87 Difference]: Start difference. First operand 1509 states and 2051 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-25 17:18:04,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:04,746 INFO L93 Difference]: Finished difference Result 1543 states and 2052 transitions. [2022-11-25 17:18:04,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:18:04,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2022-11-25 17:18:04,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:04,752 INFO L225 Difference]: With dead ends: 1543 [2022-11-25 17:18:04,752 INFO L226 Difference]: Without dead ends: 1543 [2022-11-25 17:18:04,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:04,754 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 35 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:04,754 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 108 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:18:04,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1543 states. [2022-11-25 17:18:04,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1543 to 1541. [2022-11-25 17:18:04,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1541 states, 1540 states have (on average 1.3318181818181818) internal successors, (2051), 1540 states have internal predecessors, (2051), 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) [2022-11-25 17:18:04,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1541 states to 1541 states and 2051 transitions. [2022-11-25 17:18:04,795 INFO L78 Accepts]: Start accepts. Automaton has 1541 states and 2051 transitions. Word has length 21 [2022-11-25 17:18:04,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:04,796 INFO L495 AbstractCegarLoop]: Abstraction has 1541 states and 2051 transitions. [2022-11-25 17:18:04,796 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-25 17:18:04,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1541 states and 2051 transitions. [2022-11-25 17:18:04,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 17:18:04,798 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:04,798 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:04,798 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-11-25 17:18:04,799 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 17:18:04,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:04,799 INFO L85 PathProgramCache]: Analyzing trace with hash 1893757466, now seen corresponding path program 1 times [2022-11-25 17:18:04,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:04,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1498699618] [2022-11-25 17:18:04,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:04,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:04,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:04,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:04,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:04,830 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1498699618] [2022-11-25 17:18:04,830 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1498699618] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:04,830 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:04,830 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:18:04,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904862683] [2022-11-25 17:18:04,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:04,831 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:18:04,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:04,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:18:04,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:04,833 INFO L87 Difference]: Start difference. First operand 1541 states and 2051 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-25 17:18:04,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:04,856 INFO L93 Difference]: Finished difference Result 2567 states and 3364 transitions. [2022-11-25 17:18:04,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:18:04,857 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2022-11-25 17:18:04,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:04,864 INFO L225 Difference]: With dead ends: 2567 [2022-11-25 17:18:04,865 INFO L226 Difference]: Without dead ends: 2567 [2022-11-25 17:18:04,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:04,866 INFO L413 NwaCegarLoop]: 49 mSDtfsCounter, 20 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:04,866 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 91 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:18:04,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2567 states. [2022-11-25 17:18:04,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2567 to 2309. [2022-11-25 17:18:04,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2309 states, 2308 states have (on average 1.290727902946274) internal successors, (2979), 2308 states have internal predecessors, (2979), 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) [2022-11-25 17:18:04,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2309 states to 2309 states and 2979 transitions. [2022-11-25 17:18:04,918 INFO L78 Accepts]: Start accepts. Automaton has 2309 states and 2979 transitions. Word has length 21 [2022-11-25 17:18:04,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:04,918 INFO L495 AbstractCegarLoop]: Abstraction has 2309 states and 2979 transitions. [2022-11-25 17:18:04,919 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-25 17:18:04,919 INFO L276 IsEmpty]: Start isEmpty. Operand 2309 states and 2979 transitions. [2022-11-25 17:18:04,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-25 17:18:04,922 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:04,922 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:04,922 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-11-25 17:18:04,922 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 17:18:04,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:04,932 INFO L85 PathProgramCache]: Analyzing trace with hash -1700145252, now seen corresponding path program 1 times [2022-11-25 17:18:04,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:04,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274878421] [2022-11-25 17:18:04,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:04,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:04,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:04,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:04,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:04,974 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274878421] [2022-11-25 17:18:04,975 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274878421] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:04,975 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:04,975 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:18:04,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818382896] [2022-11-25 17:18:04,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:04,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:18:04,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:04,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:18:04,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:04,990 INFO L87 Difference]: Start difference. First operand 2309 states and 2979 transitions. Second operand has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-25 17:18:05,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:05,015 INFO L93 Difference]: Finished difference Result 2951 states and 3652 transitions. [2022-11-25 17:18:05,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:18:05,015 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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 21 [2022-11-25 17:18:05,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:05,025 INFO L225 Difference]: With dead ends: 2951 [2022-11-25 17:18:05,025 INFO L226 Difference]: Without dead ends: 2951 [2022-11-25 17:18:05,026 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:05,028 INFO L413 NwaCegarLoop]: 80 mSDtfsCounter, 32 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:05,029 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 121 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:18:05,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2951 states. [2022-11-25 17:18:05,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2951 to 2949. [2022-11-25 17:18:05,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2949 states, 2948 states have (on average 1.2384667571234735) internal successors, (3651), 2948 states have internal predecessors, (3651), 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) [2022-11-25 17:18:05,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2949 states to 2949 states and 3651 transitions. [2022-11-25 17:18:05,118 INFO L78 Accepts]: Start accepts. Automaton has 2949 states and 3651 transitions. Word has length 21 [2022-11-25 17:18:05,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:05,118 INFO L495 AbstractCegarLoop]: Abstraction has 2949 states and 3651 transitions. [2022-11-25 17:18:05,119 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2022-11-25 17:18:05,119 INFO L276 IsEmpty]: Start isEmpty. Operand 2949 states and 3651 transitions. [2022-11-25 17:18:05,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-25 17:18:05,122 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:05,123 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:05,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-11-25 17:18:05,123 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 17:18:05,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:05,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1422844656, now seen corresponding path program 1 times [2022-11-25 17:18:05,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:05,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432032380] [2022-11-25 17:18:05,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:05,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:05,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:05,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:05,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:05,147 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432032380] [2022-11-25 17:18:05,147 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432032380] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:05,147 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:05,147 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:18:05,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834765717] [2022-11-25 17:18:05,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:05,148 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:18:05,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:05,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:18:05,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:05,149 INFO L87 Difference]: Start difference. First operand 2949 states and 3651 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-11-25 17:18:05,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:05,175 INFO L93 Difference]: Finished difference Result 3015 states and 3652 transitions. [2022-11-25 17:18:05,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:18:05,178 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2022-11-25 17:18:05,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:05,188 INFO L225 Difference]: With dead ends: 3015 [2022-11-25 17:18:05,188 INFO L226 Difference]: Without dead ends: 3015 [2022-11-25 17:18:05,189 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:05,189 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 34 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 104 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:05,190 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 104 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:18:05,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3015 states. [2022-11-25 17:18:05,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3015 to 3013. [2022-11-25 17:18:05,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3013 states, 3012 states have (on average 1.2121513944223108) internal successors, (3651), 3012 states have internal predecessors, (3651), 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) [2022-11-25 17:18:05,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3013 states to 3013 states and 3651 transitions. [2022-11-25 17:18:05,255 INFO L78 Accepts]: Start accepts. Automaton has 3013 states and 3651 transitions. Word has length 22 [2022-11-25 17:18:05,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:05,255 INFO L495 AbstractCegarLoop]: Abstraction has 3013 states and 3651 transitions. [2022-11-25 17:18:05,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-11-25 17:18:05,256 INFO L276 IsEmpty]: Start isEmpty. Operand 3013 states and 3651 transitions. [2022-11-25 17:18:05,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-25 17:18:05,259 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:05,259 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:05,260 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-11-25 17:18:05,260 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 17:18:05,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:05,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1164679218, now seen corresponding path program 1 times [2022-11-25 17:18:05,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:05,261 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321541586] [2022-11-25 17:18:05,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:05,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:05,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:05,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:05,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:05,284 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321541586] [2022-11-25 17:18:05,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321541586] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:05,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:05,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:18:05,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526855371] [2022-11-25 17:18:05,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:05,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:18:05,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:05,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:18:05,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:05,286 INFO L87 Difference]: Start difference. First operand 3013 states and 3651 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-11-25 17:18:05,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:05,319 INFO L93 Difference]: Finished difference Result 4869 states and 5699 transitions. [2022-11-25 17:18:05,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:18:05,319 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2022-11-25 17:18:05,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:05,335 INFO L225 Difference]: With dead ends: 4869 [2022-11-25 17:18:05,335 INFO L226 Difference]: Without dead ends: 4869 [2022-11-25 17:18:05,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:05,336 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 16 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:05,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 88 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:18:05,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4869 states. [2022-11-25 17:18:05,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4869 to 4613. [2022-11-25 17:18:05,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4613 states, 4612 states have (on average 1.180182133564614) internal successors, (5443), 4612 states have internal predecessors, (5443), 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) [2022-11-25 17:18:05,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4613 states to 4613 states and 5443 transitions. [2022-11-25 17:18:05,434 INFO L78 Accepts]: Start accepts. Automaton has 4613 states and 5443 transitions. Word has length 22 [2022-11-25 17:18:05,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:05,434 INFO L495 AbstractCegarLoop]: Abstraction has 4613 states and 5443 transitions. [2022-11-25 17:18:05,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-11-25 17:18:05,434 INFO L276 IsEmpty]: Start isEmpty. Operand 4613 states and 5443 transitions. [2022-11-25 17:18:05,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-11-25 17:18:05,440 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 17:18:05,440 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:05,440 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-11-25 17:18:05,441 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK] === [2022-11-25 17:18:05,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:18:05,441 INFO L85 PathProgramCache]: Analyzing trace with hash -463614640, now seen corresponding path program 1 times [2022-11-25 17:18:05,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:18:05,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343170694] [2022-11-25 17:18:05,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:18:05,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:18:05,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:18:05,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:18:05,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:18:05,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343170694] [2022-11-25 17:18:05,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343170694] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:18:05,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:18:05,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:18:05,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607315780] [2022-11-25 17:18:05,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:18:05,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:18:05,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:18:05,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:18:05,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:05,462 INFO L87 Difference]: Start difference. First operand 4613 states and 5443 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-11-25 17:18:05,497 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 17:18:05,497 INFO L93 Difference]: Finished difference Result 5763 states and 6402 transitions. [2022-11-25 17:18:05,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:18:05,498 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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 22 [2022-11-25 17:18:05,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 17:18:05,498 INFO L225 Difference]: With dead ends: 5763 [2022-11-25 17:18:05,499 INFO L226 Difference]: Without dead ends: 0 [2022-11-25 17:18:05,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:18:05,499 INFO L413 NwaCegarLoop]: 81 mSDtfsCounter, 30 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 17:18:05,500 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 120 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 17:18:05,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-25 17:18:05,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-25 17:18:05,501 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) [2022-11-25 17:18:05,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-25 17:18:05,501 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2022-11-25 17:18:05,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 17:18:05,501 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-25 17:18:05,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 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) [2022-11-25 17:18:05,502 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-25 17:18:05,502 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-25 17:18:05,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (1 of 2 remaining) [2022-11-25 17:18:05,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (0 of 2 remaining) [2022-11-25 17:18:05,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-11-25 17:18:05,508 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 17:18:05,510 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 17:18:05,513 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 05:18:05 BoogieIcfgContainer [2022-11-25 17:18:05,513 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 17:18:05,514 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 17:18:05,514 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 17:18:05,514 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 17:18:05,515 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:18:02" (3/4) ... [2022-11-25 17:18:05,518 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-25 17:18:05,529 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2022-11-25 17:18:05,529 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2022-11-25 17:18:05,529 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2022-11-25 17:18:05,530 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-25 17:18:05,566 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15276ce-c863-413f-b100-f0ca83698a99/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 17:18:05,566 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 17:18:05,567 INFO L158 Benchmark]: Toolchain (without parser) took 3918.92ms. Allocated memory was 134.2MB in the beginning and 207.6MB in the end (delta: 73.4MB). Free memory was 68.7MB in the beginning and 60.1MB in the end (delta: 8.5MB). Peak memory consumption was 83.7MB. Max. memory is 16.1GB. [2022-11-25 17:18:05,567 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 134.2MB. Free memory is still 108.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:18:05,567 INFO L158 Benchmark]: CACSL2BoogieTranslator took 306.86ms. Allocated memory was 134.2MB in the beginning and 172.0MB in the end (delta: 37.7MB). Free memory was 68.4MB in the beginning and 139.6MB in the end (delta: -71.2MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. [2022-11-25 17:18:05,568 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.64ms. Allocated memory is still 172.0MB. Free memory was 139.6MB in the beginning and 137.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 17:18:05,568 INFO L158 Benchmark]: Boogie Preprocessor took 26.35ms. Allocated memory is still 172.0MB. Free memory was 137.5MB in the beginning and 136.8MB in the end (delta: 733.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 17:18:05,568 INFO L158 Benchmark]: RCFGBuilder took 463.01ms. Allocated memory is still 172.0MB. Free memory was 136.8MB in the beginning and 137.4MB in the end (delta: -570.4kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-11-25 17:18:05,569 INFO L158 Benchmark]: TraceAbstraction took 3027.07ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 136.9MB in the beginning and 64.3MB in the end (delta: 72.6MB). Peak memory consumption was 110.3MB. Max. memory is 16.1GB. [2022-11-25 17:18:05,569 INFO L158 Benchmark]: Witness Printer took 52.07ms. Allocated memory is still 207.6MB. Free memory was 64.3MB in the beginning and 60.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 17:18:05,571 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 134.2MB. Free memory is still 108.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 306.86ms. Allocated memory was 134.2MB in the beginning and 172.0MB in the end (delta: 37.7MB). Free memory was 68.4MB in the beginning and 139.6MB in the end (delta: -71.2MB). Peak memory consumption was 11.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.64ms. Allocated memory is still 172.0MB. Free memory was 139.6MB in the beginning and 137.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 26.35ms. Allocated memory is still 172.0MB. Free memory was 137.5MB in the beginning and 136.8MB in the end (delta: 733.0kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 463.01ms. Allocated memory is still 172.0MB. Free memory was 136.8MB in the beginning and 137.4MB in the end (delta: -570.4kB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 3027.07ms. Allocated memory was 172.0MB in the beginning and 207.6MB in the end (delta: 35.7MB). Free memory was 136.9MB in the beginning and 64.3MB in the end (delta: 72.6MB). Peak memory consumption was 110.3MB. Max. memory is 16.1GB. * Witness Printer took 52.07ms. Allocated memory is still 207.6MB. Free memory was 64.3MB in the beginning and 60.1MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 135]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: 6]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 35 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 3.0s, OverallIterations: 24, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 766 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 766 mSDsluCounter, 2539 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 960 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 118 IncrementalHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 1579 mSDtfsCounter, 118 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4613occurred in iteration=23, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 24 MinimizatonAttempts, 1044 StatesRemovedByMinimization, 21 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 422 NumberOfCodeBlocks, 422 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 398 ConstructedInterpolants, 0 QuantifiedInterpolants, 822 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 24 InterpolantComputations, 24 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-11-25 17:18:05,590 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c15276ce-c863-413f-b100-f0ca83698a99/bin/uautomizer-ZsLfNo2U6R/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