./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e04fb08f Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8 --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 64b25926fb6c7e27855d812b862643321480d6d0eb308c80224ee02bfde27516 --- 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-e04fb08 [2022-11-16 11:09:35,975 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:09:35,977 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:09:36,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:09:36,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:09:36,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:09:36,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:09:36,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:09:36,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:09:36,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:09:36,009 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:09:36,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:09:36,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:09:36,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:09:36,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:09:36,014 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:09:36,015 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:09:36,016 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:09:36,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:09:36,020 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:09:36,022 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:09:36,023 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:09:36,024 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:09:36,025 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:09:36,029 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:09:36,030 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:09:36,030 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:09:36,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:09:36,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:09:36,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:09:36,033 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:09:36,034 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:09:36,035 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:09:36,036 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:09:36,037 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:09:36,037 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:09:36,038 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:09:36,039 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:09:36,039 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:09:36,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:09:36,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:09:36,042 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-16 11:09:36,066 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:09:36,066 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:09:36,066 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:09:36,067 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:09:36,067 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:09:36,068 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:09:36,068 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:09:36,068 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:09:36,069 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:09:36,069 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:09:36,069 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:09:36,069 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:09:36,070 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:09:36,070 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:09:36,070 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:09:36,070 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-16 11:09:36,071 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-16 11:09:36,071 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-16 11:09:36,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:09:36,071 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 11:09:36,072 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:09:36,072 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:09:36,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:09:36,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:09:36,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:09:36,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:09:36,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:09:36,073 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:09:36,074 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-16 11:09:36,074 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-16 11:09:36,074 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64b25926fb6c7e27855d812b862643321480d6d0eb308c80224ee02bfde27516 [2022-11-16 11:09:36,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:09:36,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:09:36,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:09:36,377 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:09:36,378 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:09:36,379 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2022-11-16 11:09:36,475 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/data/d3a3cca94/dd701168340c4a2aa9afafc3fa9310e0/FLAG513d09cb7 [2022-11-16 11:09:37,090 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:09:37,091 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2022-11-16 11:09:37,118 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/data/d3a3cca94/dd701168340c4a2aa9afafc3fa9310e0/FLAG513d09cb7 [2022-11-16 11:09:37,339 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/data/d3a3cca94/dd701168340c4a2aa9afafc3fa9310e0 [2022-11-16 11:09:37,342 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:09:37,344 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:09:37,345 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:09:37,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:09:37,349 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:09:37,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:09:37" (1/1) ... [2022-11-16 11:09:37,351 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7fccf334 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:37, skipping insertion in model container [2022-11-16 11:09:37,351 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:09:37" (1/1) ... [2022-11-16 11:09:37,360 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:09:37,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:09:37,606 WARN L229 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_1dc5ad89-4922-47db-9936-7e68414f8965/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2022-11-16 11:09:37,884 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:09:37,902 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:09:37,917 WARN L229 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_1dc5ad89-4922-47db-9936-7e68414f8965/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2022-11-16 11:09:37,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:09:37,996 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:09:37,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:37 WrapperNode [2022-11-16 11:09:37,996 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:09:37,997 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:09:37,998 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:09:37,998 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:09:38,005 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:37" (1/1) ... [2022-11-16 11:09:38,018 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:37" (1/1) ... [2022-11-16 11:09:38,046 INFO L138 Inliner]: procedures = 162, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 48 [2022-11-16 11:09:38,046 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:09:38,047 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:09:38,047 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:09:38,047 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:09:38,056 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:37" (1/1) ... [2022-11-16 11:09:38,056 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:37" (1/1) ... [2022-11-16 11:09:38,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:37" (1/1) ... [2022-11-16 11:09:38,075 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:37" (1/1) ... [2022-11-16 11:09:38,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:37" (1/1) ... [2022-11-16 11:09:38,088 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:37" (1/1) ... [2022-11-16 11:09:38,089 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:37" (1/1) ... [2022-11-16 11:09:38,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:37" (1/1) ... [2022-11-16 11:09:38,098 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:09:38,099 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:09:38,099 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:09:38,099 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:09:38,100 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:37" (1/1) ... [2022-11-16 11:09:38,110 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:09:38,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:09:38,130 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:09:38,152 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:09:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-16 11:09:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:09:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:09:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:09:38,178 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 11:09:38,178 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 11:09:38,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:09:38,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-16 11:09:38,179 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:09:38,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:09:38,180 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:09:38,301 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:09:38,304 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:09:38,588 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:09:38,596 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:09:38,597 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:09:38,602 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:09:38 BoogieIcfgContainer [2022-11-16 11:09:38,603 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:09:38,605 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:09:38,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:09:38,612 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:09:38,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:09:37" (1/3) ... [2022-11-16 11:09:38,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db22557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:09:38, skipping insertion in model container [2022-11-16 11:09:38,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:37" (2/3) ... [2022-11-16 11:09:38,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1db22557 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:09:38, skipping insertion in model container [2022-11-16 11:09:38,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:09:38" (3/3) ... [2022-11-16 11:09:38,616 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_pos.i [2022-11-16 11:09:38,641 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:09:38,642 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-16 11:09:38,642 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:09:38,727 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:09:38,801 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 11:09:38,824 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 75 places, 72 transitions, 149 flow [2022-11-16 11:09:38,832 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 75 places, 72 transitions, 149 flow [2022-11-16 11:09:38,835 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 75 places, 72 transitions, 149 flow [2022-11-16 11:09:38,910 INFO L130 PetriNetUnfolder]: 1/71 cut-off events. [2022-11-16 11:09:38,911 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:09:38,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 71 events. 1/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/66 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2022-11-16 11:09:38,922 INFO L119 LiptonReduction]: Number of co-enabled transitions 520 [2022-11-16 11:09:42,334 INFO L134 LiptonReduction]: Checked pairs total: 1298 [2022-11-16 11:09:42,334 INFO L136 LiptonReduction]: Total number of compositions: 74 [2022-11-16 11:09:42,343 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 18 transitions, 41 flow [2022-11-16 11:09:42,356 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 46 states, 42 states have (on average 1.9285714285714286) internal successors, (81), 45 states have internal predecessors, (81), 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) [2022-11-16 11:09:42,374 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:09:42,380 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2ad3d7da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:09:42,380 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-16 11:09:42,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 42 states have (on average 1.9285714285714286) internal successors, (81), 45 states have internal predecessors, (81), 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) [2022-11-16 11:09:42,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-16 11:09:42,387 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:09:42,388 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-16 11:09:42,388 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-16 11:09:42,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:42,394 INFO L85 PathProgramCache]: Analyzing trace with hash 263, now seen corresponding path program 1 times [2022-11-16 11:09:42,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:09:42,403 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774770828] [2022-11-16 11:09:42,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:42,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:09:42,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:42,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:09:42,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:09:42,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774770828] [2022-11-16 11:09:42,526 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774770828] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:09:42,527 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:09:42,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-16 11:09:42,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703701084] [2022-11-16 11:09:42,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:09:42,535 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:09:42,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:09:42,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:09:42,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:09:42,567 INFO L87 Difference]: Start difference. First operand has 46 states, 42 states have (on average 1.9285714285714286) internal successors, (81), 45 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:42,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:09:42,605 INFO L93 Difference]: Finished difference Result 44 states and 73 transitions. [2022-11-16 11:09:42,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:09:42,608 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-16 11:09:42,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:09:42,617 INFO L225 Difference]: With dead ends: 44 [2022-11-16 11:09:42,617 INFO L226 Difference]: Without dead ends: 44 [2022-11-16 11:09:42,619 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:09:42,622 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:09:42,624 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:09:42,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-16 11:09:42,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-16 11:09:42,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 42 states have (on average 1.7380952380952381) internal successors, (73), 43 states have internal predecessors, (73), 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) [2022-11-16 11:09:42,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 73 transitions. [2022-11-16 11:09:42,665 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 73 transitions. Word has length 1 [2022-11-16 11:09:42,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:09:42,666 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 73 transitions. [2022-11-16 11:09:42,666 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:42,666 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 73 transitions. [2022-11-16 11:09:42,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 11:09:42,667 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:09:42,668 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-16 11:09:42,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-16 11:09:42,668 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-16 11:09:42,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:42,669 INFO L85 PathProgramCache]: Analyzing trace with hash -935015598, now seen corresponding path program 1 times [2022-11-16 11:09:42,670 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:09:42,670 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798382874] [2022-11-16 11:09:42,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:42,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:09:42,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:42,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:09:42,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:09:42,948 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798382874] [2022-11-16 11:09:42,948 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798382874] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:09:42,948 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:09:42,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:09:42,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513483203] [2022-11-16 11:09:42,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:09:42,950 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:09:42,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:09:42,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:09:42,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:09:42,953 INFO L87 Difference]: Start difference. First operand 44 states and 73 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2022-11-16 11:09:42,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:09:42,981 INFO L93 Difference]: Finished difference Result 47 states and 74 transitions. [2022-11-16 11:09:42,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:09:42,982 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 [2022-11-16 11:09:42,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:09:42,983 INFO L225 Difference]: With dead ends: 47 [2022-11-16 11:09:42,983 INFO L226 Difference]: Without dead ends: 47 [2022-11-16 11:09:42,984 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:09:42,985 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:09:42,986 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:09:42,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-16 11:09:42,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2022-11-16 11:09:42,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 39 states have (on average 1.7179487179487178) internal successors, (67), 40 states have internal predecessors, (67), 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) [2022-11-16 11:09:42,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 67 transitions. [2022-11-16 11:09:42,992 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 67 transitions. Word has length 6 [2022-11-16 11:09:42,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:09:42,993 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 67 transitions. [2022-11-16 11:09:42,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2022-11-16 11:09:42,993 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 67 transitions. [2022-11-16 11:09:42,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 11:09:42,994 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:09:42,994 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-16 11:09:42,994 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-16 11:09:42,994 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-16 11:09:42,995 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:42,995 INFO L85 PathProgramCache]: Analyzing trace with hash -935014539, now seen corresponding path program 1 times [2022-11-16 11:09:42,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:09:42,995 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250845275] [2022-11-16 11:09:42,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:42,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:09:43,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:43,149 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:09:43,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:09:43,150 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250845275] [2022-11-16 11:09:43,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250845275] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:09:43,150 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:09:43,150 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:09:43,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972641319] [2022-11-16 11:09:43,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:09:43,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:09:43,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:09:43,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:09:43,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:09:43,153 INFO L87 Difference]: Start difference. First operand 41 states and 67 transitions. Second operand has 4 states, 3 states have (on average 2.0) 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) [2022-11-16 11:09:43,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:09:43,197 INFO L93 Difference]: Finished difference Result 35 states and 56 transitions. [2022-11-16 11:09:43,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:09:43,198 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) 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 [2022-11-16 11:09:43,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:09:43,199 INFO L225 Difference]: With dead ends: 35 [2022-11-16 11:09:43,199 INFO L226 Difference]: Without dead ends: 29 [2022-11-16 11:09:43,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:09:43,204 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 12 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:09:43,206 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 6 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:09:43,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2022-11-16 11:09:43,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2022-11-16 11:09:43,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.6071428571428572) internal successors, (45), 28 states have internal predecessors, (45), 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) [2022-11-16 11:09:43,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 45 transitions. [2022-11-16 11:09:43,215 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 45 transitions. Word has length 6 [2022-11-16 11:09:43,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:09:43,216 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 45 transitions. [2022-11-16 11:09:43,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) 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) [2022-11-16 11:09:43,217 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 45 transitions. [2022-11-16 11:09:43,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 11:09:43,219 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:09:43,219 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:09:43,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-16 11:09:43,220 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-16 11:09:43,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:43,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1448278675, now seen corresponding path program 1 times [2022-11-16 11:09:43,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:09:43,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986329465] [2022-11-16 11:09:43,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:43,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:09:43,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:43,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:09:43,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:09:43,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986329465] [2022-11-16 11:09:43,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1986329465] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:09:43,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:09:43,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-16 11:09:43,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475424491] [2022-11-16 11:09:43,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:09:43,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:09:43,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:09:43,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:09:43,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:09:43,419 INFO L87 Difference]: Start difference. First operand 29 states and 45 transitions. Second operand has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:43,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:09:43,450 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2022-11-16 11:09:43,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:09:43,451 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-16 11:09:43,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:09:43,453 INFO L225 Difference]: With dead ends: 21 [2022-11-16 11:09:43,453 INFO L226 Difference]: Without dead ends: 21 [2022-11-16 11:09:43,454 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-16 11:09:43,456 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 11 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:09:43,460 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 1 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:09:43,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-11-16 11:09:43,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-11-16 11:09:43,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 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) [2022-11-16 11:09:43,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2022-11-16 11:09:43,470 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 9 [2022-11-16 11:09:43,471 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:09:43,471 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2022-11-16 11:09:43,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.25) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:43,471 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2022-11-16 11:09:43,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-16 11:09:43,472 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:09:43,473 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:09:43,474 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-16 11:09:43,475 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-16 11:09:43,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:43,476 INFO L85 PathProgramCache]: Analyzing trace with hash 2107711907, now seen corresponding path program 2 times [2022-11-16 11:09:43,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:09:43,477 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186293083] [2022-11-16 11:09:43,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:43,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:09:43,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:43,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:09:43,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-16 11:09:43,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186293083] [2022-11-16 11:09:43,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186293083] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:09:43,697 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:09:43,697 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:09:43,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782853983] [2022-11-16 11:09:43,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:09:43,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:09:43,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-16 11:09:43,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:09:43,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:09:43,699 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:43,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:09:43,737 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2022-11-16 11:09:43,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:09:43,737 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-16 11:09:43,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:09:43,738 INFO L225 Difference]: With dead ends: 16 [2022-11-16 11:09:43,738 INFO L226 Difference]: Without dead ends: 12 [2022-11-16 11:09:43,738 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:09:43,739 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 12 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:09:43,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:09:43,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2022-11-16 11:09:43,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2022-11-16 11:09:43,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12 states, 11 states have (on average 1.0) internal successors, (11), 11 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:43,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2022-11-16 11:09:43,741 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 9 [2022-11-16 11:09:43,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:09:43,742 INFO L495 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2022-11-16 11:09:43,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:43,742 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2022-11-16 11:09:43,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 11:09:43,742 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:09:43,742 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:09:43,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-16 11:09:43,743 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-16 11:09:43,743 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:43,743 INFO L85 PathProgramCache]: Analyzing trace with hash -1675993933, now seen corresponding path program 1 times [2022-11-16 11:09:43,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-16 11:09:43,744 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592739308] [2022-11-16 11:09:43,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:43,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-16 11:09:43,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:09:43,764 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:09:43,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:09:43,797 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-16 11:09:43,797 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:09:43,798 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2022-11-16 11:09:43,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2022-11-16 11:09:43,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 5 remaining) [2022-11-16 11:09:43,800 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2022-11-16 11:09:43,801 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-11-16 11:09:43,801 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-16 11:09:43,803 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2022-11-16 11:09:43,808 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:09:43,808 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:09:43,831 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:09:43 BasicIcfg [2022-11-16 11:09:43,831 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:09:43,831 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:09:43,831 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:09:43,832 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:09:43,832 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:09:38" (3/4) ... [2022-11-16 11:09:43,835 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:09:43,836 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:09:43,836 INFO L158 Benchmark]: Toolchain (without parser) took 6492.75ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 83.0MB in the beginning and 100.4MB in the end (delta: -17.4MB). Peak memory consumption was 7.5MB. Max. memory is 16.1GB. [2022-11-16 11:09:43,837 INFO L158 Benchmark]: CDTParser took 0.88ms. Allocated memory is still 125.8MB. Free memory is still 101.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:09:43,837 INFO L158 Benchmark]: CACSL2BoogieTranslator took 651.45ms. Allocated memory is still 125.8MB. Free memory was 82.7MB in the beginning and 91.6MB in the end (delta: -8.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 11:09:43,837 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.90ms. Allocated memory is still 125.8MB. Free memory was 91.6MB in the beginning and 89.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:09:43,838 INFO L158 Benchmark]: Boogie Preprocessor took 51.14ms. Allocated memory is still 125.8MB. Free memory was 89.8MB in the beginning and 88.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:09:43,838 INFO L158 Benchmark]: RCFGBuilder took 504.03ms. Allocated memory is still 125.8MB. Free memory was 88.2MB in the beginning and 75.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-16 11:09:43,838 INFO L158 Benchmark]: TraceAbstraction took 5225.76ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 75.1MB in the beginning and 100.4MB in the end (delta: -25.3MB). Peak memory consumption was 1.0MB. Max. memory is 16.1GB. [2022-11-16 11:09:43,839 INFO L158 Benchmark]: Witness Printer took 4.33ms. Allocated memory is still 151.0MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:09:43,840 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.88ms. Allocated memory is still 125.8MB. Free memory is still 101.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 651.45ms. Allocated memory is still 125.8MB. Free memory was 82.7MB in the beginning and 91.6MB in the end (delta: -8.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.90ms. Allocated memory is still 125.8MB. Free memory was 91.6MB in the beginning and 89.8MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.14ms. Allocated memory is still 125.8MB. Free memory was 89.8MB in the beginning and 88.2MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 504.03ms. Allocated memory is still 125.8MB. Free memory was 88.2MB in the beginning and 75.6MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5225.76ms. Allocated memory was 125.8MB in the beginning and 151.0MB in the end (delta: 25.2MB). Free memory was 75.1MB in the beginning and 100.4MB in the end (delta: -25.3MB). Peak memory consumption was 1.0MB. Max. memory is 16.1GB. * Witness Printer took 4.33ms. Allocated memory is still 151.0MB. Free memory is still 100.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.5s, 75 PlacesBefore, 21 PlacesAfterwards, 72 TransitionsBefore, 18 TransitionsAfterwards, 520 CoEnabledTransitionPairs, 7 FixpointIterations, 39 TrivialSequentialCompositions, 33 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 74 TotalNumberOfCompositions, 1298 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 637, independent: 527, independent conditional: 0, independent unconditional: 527, dependent: 110, dependent conditional: 0, dependent unconditional: 110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 379, independent: 353, independent conditional: 0, independent unconditional: 353, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 379, independent: 335, independent conditional: 0, independent unconditional: 335, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 44, independent: 18, independent conditional: 0, independent unconditional: 18, dependent: 26, dependent conditional: 0, dependent unconditional: 26, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 147, independent: 50, independent conditional: 0, independent unconditional: 50, dependent: 97, dependent conditional: 0, dependent unconditional: 97, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 637, independent: 174, independent conditional: 0, independent unconditional: 174, dependent: 84, dependent conditional: 0, dependent unconditional: 84, unknown: 379, unknown conditional: 0, unknown unconditional: 379] , Statistics on independence cache: Total cache size (in pairs): 36, Positive cache size: 24, Positive conditional cache size: 0, Positive unconditional cache size: 24, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L681] 0 int g = 0; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, D={4:0}, g=0, id={5:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L687] 1 g = 17 VAL [A={3:0}, arg={0:0}, arg={0:0}, D={4:0}, g=17] [L690] 1 return ((void *)0); [L698] CALL 0 __VERIFIER_assert(g == 0) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, \result={0:0}, A={3:0}, arg={0:0}, arg={0:0}, cond=0, D={4:0}, g=17] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 84 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 5.0s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 41 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 41 mSDsluCounter, 14 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 11 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 84 IncrementalHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 11 mSolverCounterUnsat, 11 mSDtfsCounter, 84 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 26 ConstructedInterpolants, 0 QuantifiedInterpolants, 134 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-16 11:09:43,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8 --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 64b25926fb6c7e27855d812b862643321480d6d0eb308c80224ee02bfde27516 --- 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-e04fb08 [2022-11-16 11:09:46,178 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-16 11:09:46,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-16 11:09:46,228 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-16 11:09:46,229 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-16 11:09:46,234 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-16 11:09:46,235 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-16 11:09:46,239 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-16 11:09:46,242 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-16 11:09:46,244 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-16 11:09:46,245 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-16 11:09:46,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-16 11:09:46,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-16 11:09:46,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-16 11:09:46,259 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-16 11:09:46,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-16 11:09:46,262 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-16 11:09:46,265 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-16 11:09:46,267 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-16 11:09:46,273 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-16 11:09:46,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-16 11:09:46,284 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-16 11:09:46,285 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-16 11:09:46,286 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-16 11:09:46,290 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-16 11:09:46,293 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-16 11:09:46,293 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-16 11:09:46,294 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-16 11:09:46,296 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-16 11:09:46,297 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-16 11:09:46,297 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-16 11:09:46,298 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-16 11:09:46,300 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-16 11:09:46,301 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-16 11:09:46,305 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-16 11:09:46,305 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-16 11:09:46,306 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-16 11:09:46,306 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-16 11:09:46,307 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-16 11:09:46,308 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-16 11:09:46,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-16 11:09:46,310 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-16 11:09:46,336 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-16 11:09:46,338 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-16 11:09:46,340 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-16 11:09:46,340 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-16 11:09:46,341 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-16 11:09:46,341 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-16 11:09:46,343 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-16 11:09:46,343 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-16 11:09:46,343 INFO L138 SettingsManager]: * Use SBE=true [2022-11-16 11:09:46,343 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-16 11:09:46,344 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-16 11:09:46,345 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-16 11:09:46,345 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-16 11:09:46,345 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-16 11:09:46,345 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-16 11:09:46,345 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-16 11:09:46,346 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-16 11:09:46,346 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-16 11:09:46,346 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-16 11:09:46,346 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-16 11:09:46,347 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-16 11:09:46,347 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-16 11:09:46,347 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-16 11:09:46,347 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-16 11:09:46,347 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-16 11:09:46,348 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-16 11:09:46,348 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-16 11:09:46,348 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:09:46,348 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-16 11:09:46,349 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-16 11:09:46,349 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-16 11:09:46,349 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-16 11:09:46,349 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-16 11:09:46,350 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 64b25926fb6c7e27855d812b862643321480d6d0eb308c80224ee02bfde27516 [2022-11-16 11:09:46,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-16 11:09:46,795 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-16 11:09:46,798 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-16 11:09:46,799 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-16 11:09:46,800 INFO L275 PluginConnector]: CDTParser initialized [2022-11-16 11:09:46,802 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/../../sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2022-11-16 11:09:46,872 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/data/9b78cde77/b4319d2b151545b4b24963b62bdeff05/FLAG400e261fd [2022-11-16 11:09:47,494 INFO L306 CDTParser]: Found 1 translation units. [2022-11-16 11:09:47,495 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i [2022-11-16 11:09:47,511 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/data/9b78cde77/b4319d2b151545b4b24963b62bdeff05/FLAG400e261fd [2022-11-16 11:09:47,743 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/data/9b78cde77/b4319d2b151545b4b24963b62bdeff05 [2022-11-16 11:09:47,745 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-16 11:09:47,747 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-16 11:09:47,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-16 11:09:47,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-16 11:09:47,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-16 11:09:47,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:09:47" (1/1) ... [2022-11-16 11:09:47,753 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57e4442f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:47, skipping insertion in model container [2022-11-16 11:09:47,754 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 11:09:47" (1/1) ... [2022-11-16 11:09:47,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-16 11:09:47,793 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-16 11:09:47,966 WARN L229 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_1dc5ad89-4922-47db-9936-7e68414f8965/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2022-11-16 11:09:48,109 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:09:48,128 INFO L203 MainTranslator]: Completed pre-run [2022-11-16 11:09:48,146 WARN L229 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_1dc5ad89-4922-47db-9936-7e68414f8965/sv-benchmarks/c/goblint-regression/13-privatized_41-traces-ex-7_unknown_1_pos.i[1097,1110] [2022-11-16 11:09:48,199 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-16 11:09:48,252 INFO L208 MainTranslator]: Completed translation [2022-11-16 11:09:48,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:48 WrapperNode [2022-11-16 11:09:48,253 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-16 11:09:48,254 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-16 11:09:48,254 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-16 11:09:48,254 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-16 11:09:48,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:48" (1/1) ... [2022-11-16 11:09:48,303 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:48" (1/1) ... [2022-11-16 11:09:48,331 INFO L138 Inliner]: procedures = 166, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 49 [2022-11-16 11:09:48,332 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-16 11:09:48,333 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-16 11:09:48,333 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-16 11:09:48,333 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-16 11:09:48,342 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:48" (1/1) ... [2022-11-16 11:09:48,342 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:48" (1/1) ... [2022-11-16 11:09:48,350 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:48" (1/1) ... [2022-11-16 11:09:48,350 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:48" (1/1) ... [2022-11-16 11:09:48,364 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:48" (1/1) ... [2022-11-16 11:09:48,366 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:48" (1/1) ... [2022-11-16 11:09:48,367 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:48" (1/1) ... [2022-11-16 11:09:48,369 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:48" (1/1) ... [2022-11-16 11:09:48,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-16 11:09:48,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-16 11:09:48,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-16 11:09:48,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-16 11:09:48,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:48" (1/1) ... [2022-11-16 11:09:48,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-16 11:09:48,409 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/z3 [2022-11-16 11:09:48,428 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-16 11:09:48,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-16 11:09:48,480 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-16 11:09:48,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-16 11:09:48,481 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-16 11:09:48,481 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-11-16 11:09:48,481 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-11-16 11:09:48,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-16 11:09:48,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-16 11:09:48,482 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-16 11:09:48,483 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-16 11:09:48,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-16 11:09:48,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-16 11:09:48,485 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-16 11:09:48,702 INFO L235 CfgBuilder]: Building ICFG [2022-11-16 11:09:48,704 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-16 11:09:48,912 INFO L276 CfgBuilder]: Performing block encoding [2022-11-16 11:09:48,919 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-16 11:09:48,919 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-16 11:09:48,922 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:09:48 BoogieIcfgContainer [2022-11-16 11:09:48,922 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-16 11:09:48,924 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-16 11:09:48,924 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-16 11:09:48,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-16 11:09:48,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 11:09:47" (1/3) ... [2022-11-16 11:09:48,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b7f29d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:09:48, skipping insertion in model container [2022-11-16 11:09:48,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 11:09:48" (2/3) ... [2022-11-16 11:09:48,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b7f29d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 11:09:48, skipping insertion in model container [2022-11-16 11:09:48,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:09:48" (3/3) ... [2022-11-16 11:09:48,939 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_41-traces-ex-7_unknown_1_pos.i [2022-11-16 11:09:48,965 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-16 11:09:48,966 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-16 11:09:48,966 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-16 11:09:49,077 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-16 11:09:49,131 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-16 11:09:49,147 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 73 transitions, 151 flow [2022-11-16 11:09:49,157 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 73 transitions, 151 flow [2022-11-16 11:09:49,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 73 transitions, 151 flow [2022-11-16 11:09:49,229 INFO L130 PetriNetUnfolder]: 1/72 cut-off events. [2022-11-16 11:09:49,233 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-16 11:09:49,239 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 72 events. 1/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 32 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2022-11-16 11:09:49,244 INFO L119 LiptonReduction]: Number of co-enabled transitions 520 [2022-11-16 11:09:55,927 INFO L134 LiptonReduction]: Checked pairs total: 1286 [2022-11-16 11:09:55,928 INFO L136 LiptonReduction]: Total number of compositions: 75 [2022-11-16 11:09:55,939 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 18 transitions, 41 flow [2022-11-16 11:09:55,962 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 46 states, 42 states have (on average 1.9285714285714286) internal successors, (81), 45 states have internal predecessors, (81), 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) [2022-11-16 11:09:56,000 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-16 11:09:56,009 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4857183a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-16 11:09:56,010 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-11-16 11:09:56,012 INFO L276 IsEmpty]: Start isEmpty. Operand has 46 states, 42 states have (on average 1.9285714285714286) internal successors, (81), 45 states have internal predecessors, (81), 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) [2022-11-16 11:09:56,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-16 11:09:56,018 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:09:56,018 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-16 11:09:56,019 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-16 11:09:56,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:56,030 INFO L85 PathProgramCache]: Analyzing trace with hash 265, now seen corresponding path program 1 times [2022-11-16 11:09:56,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:09:56,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1266910065] [2022-11-16 11:09:56,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:56,044 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:09:56,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:09:56,050 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:09:56,060 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-16 11:09:56,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:56,116 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-16 11:09:56,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:09:56,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:09:56,124 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:09:56,125 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:09:56,126 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1266910065] [2022-11-16 11:09:56,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1266910065] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:09:56,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:09:56,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-16 11:09:56,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786996803] [2022-11-16 11:09:56,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:09:56,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-16 11:09:56,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:09:56,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-16 11:09:56,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:09:56,159 INFO L87 Difference]: Start difference. First operand has 46 states, 42 states have (on average 1.9285714285714286) internal successors, (81), 45 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:56,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:09:56,222 INFO L93 Difference]: Finished difference Result 44 states and 73 transitions. [2022-11-16 11:09:56,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-16 11:09:56,224 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-16 11:09:56,225 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:09:56,232 INFO L225 Difference]: With dead ends: 44 [2022-11-16 11:09:56,246 INFO L226 Difference]: Without dead ends: 44 [2022-11-16 11:09:56,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-16 11:09:56,250 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:09:56,252 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:09:56,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-11-16 11:09:56,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2022-11-16 11:09:56,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 42 states have (on average 1.7380952380952381) internal successors, (73), 43 states have internal predecessors, (73), 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) [2022-11-16 11:09:56,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 73 transitions. [2022-11-16 11:09:56,301 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 73 transitions. Word has length 1 [2022-11-16 11:09:56,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:09:56,302 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 73 transitions. [2022-11-16 11:09:56,302 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:56,302 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 73 transitions. [2022-11-16 11:09:56,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 11:09:56,303 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:09:56,303 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-16 11:09:56,320 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-16 11:09:56,514 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:09:56,515 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-16 11:09:56,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:56,515 INFO L85 PathProgramCache]: Analyzing trace with hash -789931441, now seen corresponding path program 1 times [2022-11-16 11:09:56,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:09:56,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1202942668] [2022-11-16 11:09:56,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:56,517 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:09:56,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:09:56,518 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:09:56,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-16 11:09:56,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:56,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-16 11:09:56,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:09:56,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:09:56,653 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:09:56,653 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:09:56,653 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1202942668] [2022-11-16 11:09:56,654 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1202942668] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:09:56,654 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:09:56,654 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-16 11:09:56,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426962766] [2022-11-16 11:09:56,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:09:56,656 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-16 11:09:56,656 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:09:56,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-16 11:09:56,657 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:09:56,657 INFO L87 Difference]: Start difference. First operand 44 states and 73 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2022-11-16 11:09:56,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:09:56,716 INFO L93 Difference]: Finished difference Result 47 states and 74 transitions. [2022-11-16 11:09:56,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-16 11:09:56,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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 [2022-11-16 11:09:56,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:09:56,718 INFO L225 Difference]: With dead ends: 47 [2022-11-16 11:09:56,719 INFO L226 Difference]: Without dead ends: 47 [2022-11-16 11:09:56,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-16 11:09:56,721 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:09:56,722 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 4 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:09:56,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-11-16 11:09:56,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 41. [2022-11-16 11:09:56,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 39 states have (on average 1.7179487179487178) internal successors, (67), 40 states have internal predecessors, (67), 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) [2022-11-16 11:09:56,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 67 transitions. [2022-11-16 11:09:56,729 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 67 transitions. Word has length 6 [2022-11-16 11:09:56,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:09:56,730 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 67 transitions. [2022-11-16 11:09:56,730 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 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) [2022-11-16 11:09:56,730 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 67 transitions. [2022-11-16 11:09:56,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-16 11:09:56,731 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:09:56,731 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-16 11:09:56,745 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-16 11:09:56,944 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:09:56,945 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-16 11:09:56,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:56,945 INFO L85 PathProgramCache]: Analyzing trace with hash -789930631, now seen corresponding path program 1 times [2022-11-16 11:09:56,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:09:56,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1711114977] [2022-11-16 11:09:56,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:56,946 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:09:56,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:09:56,948 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:09:56,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-11-16 11:09:57,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:57,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 11:09:57,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:09:57,201 WARN L855 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~#id~0#1.base| (_ BitVec 32))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_main_~#id~0#1.base|) (_ bv0 1)) (= (store |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_main_~#id~0#1.base| (_ bv0 1)) |c_#valid|))) is different from true [2022-11-16 11:09:57,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:09:57,202 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:09:57,203 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:09:57,203 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1711114977] [2022-11-16 11:09:57,203 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1711114977] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:09:57,204 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:09:57,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:09:57,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982259100] [2022-11-16 11:09:57,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:09:57,205 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:09:57,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:09:57,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:09:57,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2022-11-16 11:09:57,208 INFO L87 Difference]: Start difference. First operand 41 states and 67 transitions. Second operand has 4 states, 3 states have (on average 2.0) 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) [2022-11-16 11:09:57,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:09:57,237 INFO L93 Difference]: Finished difference Result 40 states and 65 transitions. [2022-11-16 11:09:57,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:09:57,239 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) 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 [2022-11-16 11:09:57,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:09:57,241 INFO L225 Difference]: With dead ends: 40 [2022-11-16 11:09:57,241 INFO L226 Difference]: Without dead ends: 40 [2022-11-16 11:09:57,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2022-11-16 11:09:57,248 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 17 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:09:57,256 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 17 Unchecked, 0.0s Time] [2022-11-16 11:09:57,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-11-16 11:09:57,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 40. [2022-11-16 11:09:57,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 38 states have (on average 1.7105263157894737) internal successors, (65), 39 states have internal predecessors, (65), 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) [2022-11-16 11:09:57,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 65 transitions. [2022-11-16 11:09:57,267 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 65 transitions. Word has length 6 [2022-11-16 11:09:57,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:09:57,269 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 65 transitions. [2022-11-16 11:09:57,270 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) 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) [2022-11-16 11:09:57,270 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 65 transitions. [2022-11-16 11:09:57,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 11:09:57,272 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:09:57,272 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:09:57,288 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-11-16 11:09:57,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:09:57,483 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-16 11:09:57,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:57,484 INFO L85 PathProgramCache]: Analyzing trace with hash 1281922874, now seen corresponding path program 1 times [2022-11-16 11:09:57,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:09:57,485 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [478215788] [2022-11-16 11:09:57,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:57,485 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:09:57,485 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:09:57,486 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:09:57,490 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-11-16 11:09:57,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:57,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-16 11:09:57,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:09:57,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-11-16 11:09:57,730 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-16 11:09:57,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:09:57,752 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:09:57,753 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:09:57,753 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [478215788] [2022-11-16 11:09:57,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [478215788] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:09:57,754 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:09:57,754 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:09:57,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382391088] [2022-11-16 11:09:57,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:09:57,755 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:09:57,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:09:57,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:09:57,757 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:09:57,757 INFO L87 Difference]: Start difference. First operand 40 states and 65 transitions. Second operand has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-11-16 11:09:57,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:09:57,827 INFO L93 Difference]: Finished difference Result 32 states and 39 transitions. [2022-11-16 11:09:57,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:09:57,828 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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 7 [2022-11-16 11:09:57,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:09:57,829 INFO L225 Difference]: With dead ends: 32 [2022-11-16 11:09:57,829 INFO L226 Difference]: Without dead ends: 32 [2022-11-16 11:09:57,830 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:09:57,836 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-16 11:09:57,842 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 1 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-16 11:09:57,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-11-16 11:09:57,848 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2022-11-16 11:09:57,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 30 states have (on average 1.3) internal successors, (39), 31 states have internal predecessors, (39), 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) [2022-11-16 11:09:57,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 39 transitions. [2022-11-16 11:09:57,849 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 39 transitions. Word has length 7 [2022-11-16 11:09:57,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:09:57,849 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 39 transitions. [2022-11-16 11:09:57,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.4) internal successors, (7), 4 states have internal predecessors, (7), 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) [2022-11-16 11:09:57,849 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 39 transitions. [2022-11-16 11:09:57,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-16 11:09:57,850 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:09:57,850 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:09:57,871 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-11-16 11:09:58,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:09:58,071 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-16 11:09:58,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:58,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1281954494, now seen corresponding path program 2 times [2022-11-16 11:09:58,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:09:58,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [887326477] [2022-11-16 11:09:58,072 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-16 11:09:58,072 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:09:58,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:09:58,075 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:09:58,117 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-11-16 11:09:58,169 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-16 11:09:58,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-16 11:09:58,172 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-16 11:09:58,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:09:58,245 WARN L855 $PredicateComparison]: unable to prove that (exists ((|ULTIMATE.start_main_~#id~0#1.base| (_ BitVec 32))) (and (= (select |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_main_~#id~0#1.base|) (_ bv0 1)) (= (store |c_ULTIMATE.start_main_old_#valid#1| |ULTIMATE.start_main_~#id~0#1.base| (_ bv0 1)) |c_#valid|))) is different from true [2022-11-16 11:09:58,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:09:58,264 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:09:58,264 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:09:58,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [887326477] [2022-11-16 11:09:58,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [887326477] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:09:58,265 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:09:58,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-16 11:09:58,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458874169] [2022-11-16 11:09:58,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:09:58,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-16 11:09:58,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:09:58,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-16 11:09:58,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2022-11-16 11:09:58,266 INFO L87 Difference]: Start difference. First operand 32 states and 39 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-16 11:09:58,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:09:58,286 INFO L93 Difference]: Finished difference Result 31 states and 37 transitions. [2022-11-16 11:09:58,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:09:58,287 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-11-16 11:09:58,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:09:58,290 INFO L225 Difference]: With dead ends: 31 [2022-11-16 11:09:58,290 INFO L226 Difference]: Without dead ends: 31 [2022-11-16 11:09:58,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=4, Unknown=1, NotChecked=2, Total=12 [2022-11-16 11:09:58,291 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 0 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 19 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:09:58,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 4 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 19 Unchecked, 0.0s Time] [2022-11-16 11:09:58,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-11-16 11:09:58,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2022-11-16 11:09:58,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 30 states have internal predecessors, (37), 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) [2022-11-16 11:09:58,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2022-11-16 11:09:58,306 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 7 [2022-11-16 11:09:58,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:09:58,307 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-11-16 11:09:58,307 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 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) [2022-11-16 11:09:58,307 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2022-11-16 11:09:58,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-16 11:09:58,308 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:09:58,308 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:09:58,323 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-11-16 11:09:58,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:09:58,520 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-16 11:09:58,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:58,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1085884239, now seen corresponding path program 1 times [2022-11-16 11:09:58,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:09:58,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [795905060] [2022-11-16 11:09:58,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:58,522 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:09:58,522 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:09:58,522 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:09:58,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-11-16 11:09:58,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-16 11:09:58,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 8 conjunts are in the unsatisfiable core [2022-11-16 11:09:58,602 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-16 11:09:58,636 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-11-16 11:09:58,673 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-16 11:09:58,691 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-11-16 11:09:58,708 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-16 11:09:58,708 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-16 11:09:58,708 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-16 11:09:58,708 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [795905060] [2022-11-16 11:09:58,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [795905060] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-16 11:09:58,709 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-16 11:09:58,709 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-16 11:09:58,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159686924] [2022-11-16 11:09:58,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-16 11:09:58,709 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-16 11:09:58,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-16 11:09:58,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-16 11:09:58,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:09:58,710 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-11-16 11:09:58,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-16 11:09:58,763 INFO L93 Difference]: Finished difference Result 20 states and 19 transitions. [2022-11-16 11:09:58,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-16 11:09:58,764 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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 8 [2022-11-16 11:09:58,764 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-16 11:09:58,764 INFO L225 Difference]: With dead ends: 20 [2022-11-16 11:09:58,765 INFO L226 Difference]: Without dead ends: 14 [2022-11-16 11:09:58,765 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-16 11:09:58,766 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 13 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-16 11:09:58,766 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-16 11:09:58,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-16 11:09:58,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-16 11:09:58,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 13 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-16 11:09:58,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 13 transitions. [2022-11-16 11:09:58,768 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 13 transitions. Word has length 8 [2022-11-16 11:09:58,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-16 11:09:58,768 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 13 transitions. [2022-11-16 11:09:58,769 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.6) internal successors, (8), 4 states have internal predecessors, (8), 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) [2022-11-16 11:09:58,769 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 13 transitions. [2022-11-16 11:09:58,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-16 11:09:58,769 INFO L187 NwaCegarLoop]: Found error trace [2022-11-16 11:09:58,769 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-16 11:09:58,786 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-11-16 11:09:58,981 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:09:58,982 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (and 2 more)] === [2022-11-16 11:09:58,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-16 11:09:58,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1793229625, now seen corresponding path program 1 times [2022-11-16 11:09:58,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-16 11:09:58,983 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [609181001] [2022-11-16 11:09:58,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-16 11:09:58,983 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:09:58,983 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat [2022-11-16 11:09:58,984 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-16 11:09:59,022 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-11-16 11:09:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:09:59,078 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-16 11:09:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-16 11:09:59,164 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-16 11:09:59,164 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-16 11:09:59,165 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (4 of 5 remaining) [2022-11-16 11:09:59,167 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 5 remaining) [2022-11-16 11:09:59,167 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 5 remaining) [2022-11-16 11:09:59,167 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONMEMORY_LEAK (1 of 5 remaining) [2022-11-16 11:09:59,168 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 5 remaining) [2022-11-16 11:09:59,188 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-11-16 11:09:59,368 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-16 11:09:59,370 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2022-11-16 11:09:59,375 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-16 11:09:59,375 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-16 11:09:59,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 11:09:59 BasicIcfg [2022-11-16 11:09:59,419 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-16 11:09:59,419 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-16 11:09:59,419 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-16 11:09:59,420 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-16 11:09:59,420 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.11 11:09:48" (3/4) ... [2022-11-16 11:09:59,423 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-16 11:09:59,423 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-16 11:09:59,435 INFO L158 Benchmark]: Toolchain (without parser) took 11688.87ms. Allocated memory was 77.6MB in the beginning and 125.8MB in the end (delta: 48.2MB). Free memory was 59.8MB in the beginning and 105.4MB in the end (delta: -45.6MB). Peak memory consumption was 56.0MB. Max. memory is 16.1GB. [2022-11-16 11:09:59,436 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 77.6MB. Free memory is still 58.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-16 11:09:59,436 INFO L158 Benchmark]: CACSL2BoogieTranslator took 505.38ms. Allocated memory is still 77.6MB. Free memory was 59.5MB in the beginning and 40.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-16 11:09:59,436 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.19ms. Allocated memory is still 77.6MB. Free memory was 40.1MB in the beginning and 38.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:09:59,437 INFO L158 Benchmark]: Boogie Preprocessor took 49.59ms. Allocated memory is still 77.6MB. Free memory was 38.1MB in the beginning and 36.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:09:59,437 INFO L158 Benchmark]: RCFGBuilder took 539.18ms. Allocated memory is still 77.6MB. Free memory was 36.3MB in the beginning and 50.6MB in the end (delta: -14.3MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2022-11-16 11:09:59,437 INFO L158 Benchmark]: TraceAbstraction took 10494.73ms. Allocated memory was 77.6MB in the beginning and 104.9MB in the end (delta: 27.3MB). Free memory was 50.2MB in the beginning and 34.7MB in the end (delta: 15.5MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. [2022-11-16 11:09:59,438 INFO L158 Benchmark]: Witness Printer took 15.41ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 34.7MB in the beginning and 105.4MB in the end (delta: -70.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-16 11:09:59,440 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 77.6MB. Free memory is still 58.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 505.38ms. Allocated memory is still 77.6MB. Free memory was 59.5MB in the beginning and 40.1MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.19ms. Allocated memory is still 77.6MB. Free memory was 40.1MB in the beginning and 38.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 49.59ms. Allocated memory is still 77.6MB. Free memory was 38.1MB in the beginning and 36.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 539.18ms. Allocated memory is still 77.6MB. Free memory was 36.3MB in the beginning and 50.6MB in the end (delta: -14.3MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * TraceAbstraction took 10494.73ms. Allocated memory was 77.6MB in the beginning and 104.9MB in the end (delta: 27.3MB). Free memory was 50.2MB in the beginning and 34.7MB in the end (delta: 15.5MB). Peak memory consumption was 42.8MB. Max. memory is 16.1GB. * Witness Printer took 15.41ms. Allocated memory was 104.9MB in the beginning and 125.8MB in the end (delta: 21.0MB). Free memory was 34.7MB in the beginning and 105.4MB in the end (delta: -70.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.8s, 76 PlacesBefore, 21 PlacesAfterwards, 73 TransitionsBefore, 18 TransitionsAfterwards, 520 CoEnabledTransitionPairs, 7 FixpointIterations, 40 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 75 TotalNumberOfCompositions, 1286 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 656, independent: 546, independent conditional: 0, independent unconditional: 546, dependent: 110, dependent conditional: 0, dependent unconditional: 110, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 393, independent: 366, independent conditional: 0, independent unconditional: 366, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 393, independent: 347, independent conditional: 0, independent unconditional: 347, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 46, independent: 19, independent conditional: 0, independent unconditional: 19, dependent: 27, dependent conditional: 0, dependent unconditional: 27, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 288, independent: 95, independent conditional: 0, independent unconditional: 95, dependent: 193, dependent conditional: 0, dependent unconditional: 193, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 656, independent: 180, independent conditional: 0, independent unconditional: 180, dependent: 83, dependent conditional: 0, dependent unconditional: 83, unknown: 393, unknown conditional: 0, unknown unconditional: 393] , Statistics on independence cache: Total cache size (in pairs): 41, Positive cache size: 29, Positive conditional cache size: 0, Positive unconditional cache size: 29, Negative cache size: 12, Negative conditional cache size: 0, Negative unconditional cache size: 12, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L682] 0 pthread_mutex_t A = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L683] 0 pthread_mutex_t D = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L681] 0 int g = 0; [L693] 0 pthread_t id; [L694] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [A={3:0}, arg={0:0}, D={4:0}, g=0, id={7:0}, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=0] [L687] 1 g = 17 VAL [A={3:0}, arg={0:0}, arg={0:0}, D={4:0}, g=17] [L690] 1 return ((void *)0); [L698] CALL 0 __VERIFIER_assert(g == 0) [L19] COND TRUE 0 !(cond) [L19] 0 reach_error() VAL [\old(cond)=0, \result={0:0}, A={3:0}, arg={0:0}, arg={0:0}, cond=0, D={4:0}, g=17] - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 694]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 85 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 10.2s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 28 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 28 mSDsluCounter, 16 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 36 IncrementalHoareTripleChecker+Unchecked, 5 mSDsCounter, 12 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 91 IncrementalHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 12 mSolverCounterUnsat, 11 mSDtfsCounter, 91 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 46 NumberOfCodeBlocks, 46 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 29 ConstructedInterpolants, 11 QuantifiedInterpolants, 270 SizeOfPredicates, 4 NumberOfNonLiveVariables, 369 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-16 11:09:59,472 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1dc5ad89-4922-47db-9936-7e68414f8965/bin/uautomizer-tPACEb0tL8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample