./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread-wmm/safe030_power.opt_pso.opt_rmo.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version b5237d83 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_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe030_power.opt_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a --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 6e0191a7c0154db5e6d5798f5b20e5814ce0ff555e18a7acf1f1e5e323a36576 --- 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-b5237d8 [2022-11-21 16:32:19,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:32:19,359 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:32:19,398 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:32:19,399 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:32:19,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:32:19,408 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:32:19,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:32:19,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:32:19,425 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:32:19,427 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:32:19,428 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:32:19,429 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:32:19,430 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:32:19,431 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:32:19,432 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:32:19,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:32:19,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:32:19,437 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:32:19,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:32:19,440 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:32:19,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:32:19,444 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:32:19,445 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:32:19,449 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:32:19,450 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:32:19,450 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:32:19,451 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:32:19,452 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:32:19,453 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:32:19,454 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:32:19,455 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:32:19,456 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:32:19,457 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:32:19,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:32:19,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:32:19,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:32:19,460 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:32:19,460 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:32:19,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:32:19,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:32:19,464 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-21 16:32:19,492 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:32:19,493 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:32:19,493 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:32:19,494 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:32:19,494 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:32:19,495 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:32:19,496 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:32:19,496 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:32:19,496 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:32:19,497 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:32:19,497 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:32:19,497 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:32:19,498 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:32:19,498 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:32:19,498 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:32:19,499 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-21 16:32:19,499 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-21 16:32:19,499 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-21 16:32:19,499 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:32:19,500 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 16:32:19,500 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:32:19,500 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:32:19,501 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:32:19,501 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:32:19,501 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:32:19,502 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:32:19,502 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:32:19,502 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:32:19,503 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-21 16:32:19,503 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-21 16:32:19,503 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_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6e0191a7c0154db5e6d5798f5b20e5814ce0ff555e18a7acf1f1e5e323a36576 [2022-11-21 16:32:19,885 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:32:19,916 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:32:19,919 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:32:19,923 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:32:19,924 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:32:19,925 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/safe030_power.opt_pso.opt_rmo.opt.i [2022-11-21 16:32:23,647 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:32:23,958 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:32:23,959 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/sv-benchmarks/c/pthread-wmm/safe030_power.opt_pso.opt_rmo.opt.i [2022-11-21 16:32:23,974 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/data/b44433c9f/2e2a4471e3804621a773a189d798d9f8/FLAGb84c99df0 [2022-11-21 16:32:23,992 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/data/b44433c9f/2e2a4471e3804621a773a189d798d9f8 [2022-11-21 16:32:23,995 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:32:23,997 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:32:23,999 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:32:23,999 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:32:24,004 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:32:24,005 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:32:23" (1/1) ... [2022-11-21 16:32:24,007 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1803a752 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:24, skipping insertion in model container [2022-11-21 16:32:24,007 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:32:23" (1/1) ... [2022-11-21 16:32:24,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:32:24,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:32:24,342 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/sv-benchmarks/c/pthread-wmm/safe030_power.opt_pso.opt_rmo.opt.i[967,980] [2022-11-21 16:32:24,623 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:32:24,637 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:32:24,652 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/sv-benchmarks/c/pthread-wmm/safe030_power.opt_pso.opt_rmo.opt.i[967,980] [2022-11-21 16:32:24,706 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:32:24,750 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:32:24,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:24 WrapperNode [2022-11-21 16:32:24,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:32:24,753 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:32:24,753 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:32:24,753 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:32:24,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:24" (1/1) ... [2022-11-21 16:32:24,781 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:24" (1/1) ... [2022-11-21 16:32:24,816 INFO L138 Inliner]: procedures = 176, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 141 [2022-11-21 16:32:24,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:32:24,817 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:32:24,818 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:32:24,818 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:32:24,830 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:24" (1/1) ... [2022-11-21 16:32:24,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:24" (1/1) ... [2022-11-21 16:32:24,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:24" (1/1) ... [2022-11-21 16:32:24,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:24" (1/1) ... [2022-11-21 16:32:24,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:24" (1/1) ... [2022-11-21 16:32:24,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:24" (1/1) ... [2022-11-21 16:32:24,854 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:24" (1/1) ... [2022-11-21 16:32:24,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:24" (1/1) ... [2022-11-21 16:32:24,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:32:24,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:32:24,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:32:24,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:32:24,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:24" (1/1) ... [2022-11-21 16:32:24,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:32:24,909 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:32:24,937 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:32:24,955 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:32:24,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-21 16:32:24,998 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 16:32:24,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:32:24,999 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:32:24,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:32:25,000 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 16:32:25,000 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 16:32:25,000 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 16:32:25,000 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 16:32:25,001 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-21 16:32:25,001 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-21 16:32:25,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-21 16:32:25,003 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 16:32:25,003 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:32:25,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:32:25,006 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:32:25,269 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:32:25,283 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:32:25,770 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:32:26,120 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:32:26,121 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:32:26,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:32:26 BoogieIcfgContainer [2022-11-21 16:32:26,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:32:26,135 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:32:26,135 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:32:26,138 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:32:26,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:32:23" (1/3) ... [2022-11-21 16:32:26,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b7ce2e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:32:26, skipping insertion in model container [2022-11-21 16:32:26,140 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:24" (2/3) ... [2022-11-21 16:32:26,140 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b7ce2e1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:32:26, skipping insertion in model container [2022-11-21 16:32:26,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:32:26" (3/3) ... [2022-11-21 16:32:26,142 INFO L112 eAbstractionObserver]: Analyzing ICFG safe030_power.opt_pso.opt_rmo.opt.i [2022-11-21 16:32:26,167 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:32:26,168 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-21 16:32:26,168 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:32:26,302 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 16:32:26,369 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-21 16:32:26,398 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 130 places, 122 transitions, 259 flow [2022-11-21 16:32:26,404 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 130 places, 122 transitions, 259 flow [2022-11-21 16:32:26,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 130 places, 122 transitions, 259 flow [2022-11-21 16:32:26,487 INFO L130 PetriNetUnfolder]: 2/119 cut-off events. [2022-11-21 16:32:26,488 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:32:26,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 129 conditions, 119 events. 2/119 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2022-11-21 16:32:26,507 INFO L119 LiptonReduction]: Number of co-enabled transitions 2146 [2022-11-21 16:32:34,597 INFO L134 LiptonReduction]: Checked pairs total: 5471 [2022-11-21 16:32:34,597 INFO L136 LiptonReduction]: Total number of compositions: 114 [2022-11-21 16:32:34,607 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 43 places, 34 transitions, 83 flow [2022-11-21 16:32:34,710 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 860 states, 849 states have (on average 3.2909305064782095) internal successors, (2794), 859 states have internal predecessors, (2794), 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) [2022-11-21 16:32:34,733 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:32:34,743 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;@7b47c3ff, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:32:34,743 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-21 16:32:34,749 INFO L276 IsEmpty]: Start isEmpty. Operand has 860 states, 849 states have (on average 3.2909305064782095) internal successors, (2794), 859 states have internal predecessors, (2794), 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) [2022-11-21 16:32:34,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-21 16:32:34,761 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:32:34,762 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-21 16:32:34,763 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:32:34,774 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:32:34,775 INFO L85 PathProgramCache]: Analyzing trace with hash 516, now seen corresponding path program 1 times [2022-11-21 16:32:34,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:32:34,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536004754] [2022-11-21 16:32:34,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:32:34,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:32:34,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:34,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:32:34,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:32:34,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536004754] [2022-11-21 16:32:34,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536004754] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:32:34,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:32:34,973 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-21 16:32:34,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753490978] [2022-11-21 16:32:34,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:32:34,981 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 16:32:34,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:32:35,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 16:32:35,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:32:35,027 INFO L87 Difference]: Start difference. First operand has 860 states, 849 states have (on average 3.2909305064782095) internal successors, (2794), 859 states have internal predecessors, (2794), 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) [2022-11-21 16:32:35,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:32:35,208 INFO L93 Difference]: Finished difference Result 810 states and 2556 transitions. [2022-11-21 16:32:35,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 16:32:35,211 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 [2022-11-21 16:32:35,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:32:35,247 INFO L225 Difference]: With dead ends: 810 [2022-11-21 16:32:35,248 INFO L226 Difference]: Without dead ends: 810 [2022-11-21 16:32:35,249 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 [2022-11-21 16:32:35,255 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:32:35,257 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:32:35,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2022-11-21 16:32:35,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 810. [2022-11-21 16:32:35,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 810 states, 805 states have (on average 3.1751552795031057) internal successors, (2556), 809 states have internal predecessors, (2556), 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) [2022-11-21 16:32:35,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 2556 transitions. [2022-11-21 16:32:35,414 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 2556 transitions. Word has length 1 [2022-11-21 16:32:35,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:32:35,416 INFO L495 AbstractCegarLoop]: Abstraction has 810 states and 2556 transitions. [2022-11-21 16:32:35,421 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) [2022-11-21 16:32:35,424 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 2556 transitions. [2022-11-21 16:32:35,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 16:32:35,425 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:32:35,425 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:32:35,425 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-21 16:32:35,426 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:32:35,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:32:35,429 INFO L85 PathProgramCache]: Analyzing trace with hash -102218218, now seen corresponding path program 1 times [2022-11-21 16:32:35,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:32:35,429 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [145325976] [2022-11-21 16:32:35,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:32:35,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:32:35,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:36,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:32:36,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:32:36,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [145325976] [2022-11-21 16:32:36,021 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [145325976] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:32:36,021 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:32:36,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 16:32:36,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580744680] [2022-11-21 16:32:36,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:32:36,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:32:36,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:32:36,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:32:36,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:32:36,029 INFO L87 Difference]: Start difference. First operand 810 states and 2556 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2022-11-21 16:32:36,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:32:36,137 INFO L93 Difference]: Finished difference Result 670 states and 2079 transitions. [2022-11-21 16:32:36,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:32:36,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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 [2022-11-21 16:32:36,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:32:36,146 INFO L225 Difference]: With dead ends: 670 [2022-11-21 16:32:36,146 INFO L226 Difference]: Without dead ends: 650 [2022-11-21 16:32:36,148 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 [2022-11-21 16:32:36,157 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 9 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:32:36,158 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 6 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:32:36,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2022-11-21 16:32:36,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 650. [2022-11-21 16:32:36,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 648 states have (on average 3.1296296296296298) internal successors, (2028), 649 states have internal predecessors, (2028), 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) [2022-11-21 16:32:36,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 2028 transitions. [2022-11-21 16:32:36,204 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 2028 transitions. Word has length 7 [2022-11-21 16:32:36,205 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:32:36,205 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 2028 transitions. [2022-11-21 16:32:36,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2022-11-21 16:32:36,206 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 2028 transitions. [2022-11-21 16:32:36,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-21 16:32:36,207 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:32:36,207 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:32:36,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-21 16:32:36,208 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:32:36,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:32:36,209 INFO L85 PathProgramCache]: Analyzing trace with hash 552632969, now seen corresponding path program 1 times [2022-11-21 16:32:36,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:32:36,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199440913] [2022-11-21 16:32:36,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:32:36,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:32:36,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:37,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:32:37,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:32:37,575 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199440913] [2022-11-21 16:32:37,575 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199440913] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:32:37,576 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:32:37,576 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:32:37,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814473397] [2022-11-21 16:32:37,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:32:37,576 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:32:37,577 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:32:37,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:32:37,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:32:37,577 INFO L87 Difference]: Start difference. First operand 650 states and 2028 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:32:37,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:32:37,821 INFO L93 Difference]: Finished difference Result 1051 states and 3161 transitions. [2022-11-21 16:32:37,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:32:37,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-11-21 16:32:37,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:32:37,831 INFO L225 Difference]: With dead ends: 1051 [2022-11-21 16:32:37,831 INFO L226 Difference]: Without dead ends: 1051 [2022-11-21 16:32:37,833 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:32:37,836 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 30 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:32:37,838 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 7 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:32:37,843 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1051 states. [2022-11-21 16:32:37,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1051 to 700. [2022-11-21 16:32:37,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 700 states, 698 states have (on average 3.127507163323782) internal successors, (2183), 699 states have internal predecessors, (2183), 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) [2022-11-21 16:32:37,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 700 states to 700 states and 2183 transitions. [2022-11-21 16:32:37,884 INFO L78 Accepts]: Start accepts. Automaton has 700 states and 2183 transitions. Word has length 9 [2022-11-21 16:32:37,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:32:37,885 INFO L495 AbstractCegarLoop]: Abstraction has 700 states and 2183 transitions. [2022-11-21 16:32:37,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:32:37,885 INFO L276 IsEmpty]: Start isEmpty. Operand 700 states and 2183 transitions. [2022-11-21 16:32:37,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 16:32:37,889 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:32:37,889 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:32:37,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-21 16:32:37,891 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:32:37,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:32:37,892 INFO L85 PathProgramCache]: Analyzing trace with hash -48295753, now seen corresponding path program 1 times [2022-11-21 16:32:37,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:32:37,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743637644] [2022-11-21 16:32:37,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:32:37,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:32:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:38,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:32:38,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:32:38,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743637644] [2022-11-21 16:32:38,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743637644] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:32:38,122 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:32:38,122 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 16:32:38,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [652690900] [2022-11-21 16:32:38,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:32:38,123 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:32:38,123 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:32:38,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:32:38,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:32:38,124 INFO L87 Difference]: Start difference. First operand 700 states and 2183 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:32:38,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:32:38,230 INFO L93 Difference]: Finished difference Result 692 states and 2153 transitions. [2022-11-21 16:32:38,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:32:38,231 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-21 16:32:38,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:32:38,236 INFO L225 Difference]: With dead ends: 692 [2022-11-21 16:32:38,236 INFO L226 Difference]: Without dead ends: 692 [2022-11-21 16:32:38,237 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 [2022-11-21 16:32:38,238 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 6 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:32:38,239 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 5 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:32:38,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 692 states. [2022-11-21 16:32:38,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 692 to 690. [2022-11-21 16:32:38,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 690 states, 688 states have (on average 3.1177325581395348) internal successors, (2145), 689 states have internal predecessors, (2145), 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) [2022-11-21 16:32:38,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 690 states to 690 states and 2145 transitions. [2022-11-21 16:32:38,277 INFO L78 Accepts]: Start accepts. Automaton has 690 states and 2145 transitions. Word has length 10 [2022-11-21 16:32:38,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:32:38,279 INFO L495 AbstractCegarLoop]: Abstraction has 690 states and 2145 transitions. [2022-11-21 16:32:38,280 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:32:38,280 INFO L276 IsEmpty]: Start isEmpty. Operand 690 states and 2145 transitions. [2022-11-21 16:32:38,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 16:32:38,284 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:32:38,284 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:32:38,284 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-21 16:32:38,284 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:32:38,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:32:38,285 INFO L85 PathProgramCache]: Analyzing trace with hash -48246282, now seen corresponding path program 1 times [2022-11-21 16:32:38,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:32:38,286 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885666123] [2022-11-21 16:32:38,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:32:38,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:32:38,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:38,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:32:38,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:32:38,941 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885666123] [2022-11-21 16:32:38,941 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885666123] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:32:38,941 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:32:38,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:32:38,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928993601] [2022-11-21 16:32:38,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:32:38,949 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:32:38,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:32:38,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:32:38,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:32:38,951 INFO L87 Difference]: Start difference. First operand 690 states and 2145 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:32:39,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:32:39,184 INFO L93 Difference]: Finished difference Result 590 states and 1810 transitions. [2022-11-21 16:32:39,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:32:39,189 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-21 16:32:39,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:32:39,195 INFO L225 Difference]: With dead ends: 590 [2022-11-21 16:32:39,195 INFO L226 Difference]: Without dead ends: 482 [2022-11-21 16:32:39,195 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:32:39,196 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 33 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 132 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:32:39,197 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 36 Invalid, 132 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:32:39,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2022-11-21 16:32:39,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2022-11-21 16:32:39,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 481 states have (on average 2.912681912681913) internal successors, (1401), 481 states have internal predecessors, (1401), 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) [2022-11-21 16:32:39,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 1401 transitions. [2022-11-21 16:32:39,218 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 1401 transitions. Word has length 10 [2022-11-21 16:32:39,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:32:39,219 INFO L495 AbstractCegarLoop]: Abstraction has 482 states and 1401 transitions. [2022-11-21 16:32:39,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:32:39,219 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 1401 transitions. [2022-11-21 16:32:39,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-21 16:32:39,224 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:32:39,224 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:32:39,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-21 16:32:39,224 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:32:39,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:32:39,226 INFO L85 PathProgramCache]: Analyzing trace with hash 148063961, now seen corresponding path program 1 times [2022-11-21 16:32:39,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:32:39,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957067210] [2022-11-21 16:32:39,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:32:39,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:32:39,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:39,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:32:39,789 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:32:39,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957067210] [2022-11-21 16:32:39,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957067210] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:32:39,790 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:32:39,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:32:39,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083467160] [2022-11-21 16:32:39,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:32:39,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:32:39,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:32:39,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:32:39,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:32:39,792 INFO L87 Difference]: Start difference. First operand 482 states and 1401 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2022-11-21 16:32:39,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:32:39,858 INFO L93 Difference]: Finished difference Result 477 states and 1383 transitions. [2022-11-21 16:32:39,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:32:39,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-11-21 16:32:39,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:32:39,862 INFO L225 Difference]: With dead ends: 477 [2022-11-21 16:32:39,862 INFO L226 Difference]: Without dead ends: 477 [2022-11-21 16:32:39,863 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:32:39,863 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 12 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:32:39,864 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 5 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:32:39,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2022-11-21 16:32:39,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 475. [2022-11-21 16:32:39,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 474 states have (on average 2.9071729957805905) internal successors, (1378), 474 states have internal predecessors, (1378), 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) [2022-11-21 16:32:39,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 1378 transitions. [2022-11-21 16:32:39,883 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 1378 transitions. Word has length 11 [2022-11-21 16:32:39,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:32:39,884 INFO L495 AbstractCegarLoop]: Abstraction has 475 states and 1378 transitions. [2022-11-21 16:32:39,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 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) [2022-11-21 16:32:39,884 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 1378 transitions. [2022-11-21 16:32:39,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 16:32:39,885 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:32:39,886 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:32:39,886 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-21 16:32:39,886 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:32:39,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:32:39,887 INFO L85 PathProgramCache]: Analyzing trace with hash -230215863, now seen corresponding path program 1 times [2022-11-21 16:32:39,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:32:39,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929368283] [2022-11-21 16:32:39,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:32:39,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:32:39,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:40,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:32:40,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:32:40,548 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929368283] [2022-11-21 16:32:40,548 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929368283] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:32:40,548 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:32:40,549 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:32:40,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73285279] [2022-11-21 16:32:40,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:32:40,549 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:32:40,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:32:40,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:32:40,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:32:40,550 INFO L87 Difference]: Start difference. First operand 475 states and 1378 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:32:40,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:32:40,638 INFO L93 Difference]: Finished difference Result 508 states and 1456 transitions. [2022-11-21 16:32:40,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:32:40,640 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-21 16:32:40,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:32:40,643 INFO L225 Difference]: With dead ends: 508 [2022-11-21 16:32:40,643 INFO L226 Difference]: Without dead ends: 508 [2022-11-21 16:32:40,644 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:32:40,645 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 17 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:32:40,645 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 7 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:32:40,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 508 states. [2022-11-21 16:32:40,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 508 to 482. [2022-11-21 16:32:40,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 481 states have (on average 2.9022869022869022) internal successors, (1396), 481 states have internal predecessors, (1396), 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) [2022-11-21 16:32:40,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 1396 transitions. [2022-11-21 16:32:40,670 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 1396 transitions. Word has length 12 [2022-11-21 16:32:40,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:32:40,670 INFO L495 AbstractCegarLoop]: Abstraction has 482 states and 1396 transitions. [2022-11-21 16:32:40,670 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:32:40,671 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 1396 transitions. [2022-11-21 16:32:40,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 16:32:40,672 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:32:40,672 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:32:40,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-21 16:32:40,673 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:32:40,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:32:40,673 INFO L85 PathProgramCache]: Analyzing trace with hash 293935734, now seen corresponding path program 1 times [2022-11-21 16:32:40,674 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:32:40,674 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872455273] [2022-11-21 16:32:40,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:32:40,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:32:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:41,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:32:41,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:32:41,621 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872455273] [2022-11-21 16:32:41,621 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872455273] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:32:41,621 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:32:41,621 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:32:41,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124146825] [2022-11-21 16:32:41,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:32:41,621 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:32:41,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:32:41,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:32:41,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:32:41,622 INFO L87 Difference]: Start difference. First operand 482 states and 1396 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:32:41,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:32:41,820 INFO L93 Difference]: Finished difference Result 847 states and 2350 transitions. [2022-11-21 16:32:41,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:32:41,821 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-21 16:32:41,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:32:41,825 INFO L225 Difference]: With dead ends: 847 [2022-11-21 16:32:41,825 INFO L226 Difference]: Without dead ends: 671 [2022-11-21 16:32:41,826 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:32:41,827 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 19 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:32:41,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 10 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:32:41,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states. [2022-11-21 16:32:41,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 460. [2022-11-21 16:32:41,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 459 states have (on average 2.7908496732026142) internal successors, (1281), 459 states have internal predecessors, (1281), 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) [2022-11-21 16:32:41,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 1281 transitions. [2022-11-21 16:32:41,852 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 1281 transitions. Word has length 12 [2022-11-21 16:32:41,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:32:41,852 INFO L495 AbstractCegarLoop]: Abstraction has 460 states and 1281 transitions. [2022-11-21 16:32:41,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:32:41,853 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 1281 transitions. [2022-11-21 16:32:41,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-21 16:32:41,854 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:32:41,854 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:32:41,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-21 16:32:41,854 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:32:41,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:32:41,855 INFO L85 PathProgramCache]: Analyzing trace with hash 293983784, now seen corresponding path program 1 times [2022-11-21 16:32:41,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:32:41,856 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674537607] [2022-11-21 16:32:41,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:32:41,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:32:41,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:42,465 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:32:42,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:32:42,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674537607] [2022-11-21 16:32:42,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674537607] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:32:42,466 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:32:42,466 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:32:42,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500891444] [2022-11-21 16:32:42,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:32:42,467 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:32:42,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:32:42,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:32:42,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:32:42,469 INFO L87 Difference]: Start difference. First operand 460 states and 1281 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:32:42,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:32:42,613 INFO L93 Difference]: Finished difference Result 444 states and 1229 transitions. [2022-11-21 16:32:42,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:32:42,614 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-11-21 16:32:42,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:32:42,617 INFO L225 Difference]: With dead ends: 444 [2022-11-21 16:32:42,618 INFO L226 Difference]: Without dead ends: 444 [2022-11-21 16:32:42,618 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:32:42,619 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 19 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:32:42,619 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 12 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:32:42,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2022-11-21 16:32:42,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 436. [2022-11-21 16:32:42,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 436 states, 435 states have (on average 2.788505747126437) internal successors, (1213), 435 states have internal predecessors, (1213), 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) [2022-11-21 16:32:42,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 436 states to 436 states and 1213 transitions. [2022-11-21 16:32:42,638 INFO L78 Accepts]: Start accepts. Automaton has 436 states and 1213 transitions. Word has length 12 [2022-11-21 16:32:42,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:32:42,639 INFO L495 AbstractCegarLoop]: Abstraction has 436 states and 1213 transitions. [2022-11-21 16:32:42,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:32:42,639 INFO L276 IsEmpty]: Start isEmpty. Operand 436 states and 1213 transitions. [2022-11-21 16:32:42,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-21 16:32:42,640 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:32:42,641 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:32:42,641 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-11-21 16:32:42,641 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:32:42,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:32:42,642 INFO L85 PathProgramCache]: Analyzing trace with hash 1815515162, now seen corresponding path program 1 times [2022-11-21 16:32:42,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:32:42,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656446569] [2022-11-21 16:32:42,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:32:42,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:32:42,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:43,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:32:43,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:32:43,520 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656446569] [2022-11-21 16:32:43,521 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656446569] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:32:43,521 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:32:43,521 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:32:43,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1469725352] [2022-11-21 16:32:43,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:32:43,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:32:43,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:32:43,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:32:43,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:32:43,523 INFO L87 Difference]: Start difference. First operand 436 states and 1213 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2022-11-21 16:32:43,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:32:43,636 INFO L93 Difference]: Finished difference Result 488 states and 1309 transitions. [2022-11-21 16:32:43,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:32:43,637 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-21 16:32:43,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:32:43,639 INFO L225 Difference]: With dead ends: 488 [2022-11-21 16:32:43,639 INFO L226 Difference]: Without dead ends: 282 [2022-11-21 16:32:43,640 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:32:43,641 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 26 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 7 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:32:43,641 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 7 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:32:43,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-11-21 16:32:43,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 260. [2022-11-21 16:32:43,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 259 states have (on average 2.637065637065637) internal successors, (683), 259 states have internal predecessors, (683), 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) [2022-11-21 16:32:43,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 683 transitions. [2022-11-21 16:32:43,653 INFO L78 Accepts]: Start accepts. Automaton has 260 states and 683 transitions. Word has length 13 [2022-11-21 16:32:43,653 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:32:43,654 INFO L495 AbstractCegarLoop]: Abstraction has 260 states and 683 transitions. [2022-11-21 16:32:43,654 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 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) [2022-11-21 16:32:43,654 INFO L276 IsEmpty]: Start isEmpty. Operand 260 states and 683 transitions. [2022-11-21 16:32:43,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-11-21 16:32:43,655 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:32:43,655 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:32:43,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-11-21 16:32:43,656 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:32:43,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:32:43,657 INFO L85 PathProgramCache]: Analyzing trace with hash -998616377, now seen corresponding path program 1 times [2022-11-21 16:32:43,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:32:43,657 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923145499] [2022-11-21 16:32:43,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:32:43,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:32:43,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:43,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:32:43,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:32:43,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923145499] [2022-11-21 16:32:43,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923145499] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:32:43,890 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:32:43,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:32:43,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58991959] [2022-11-21 16:32:43,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:32:43,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:32:43,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:32:43,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:32:43,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:32:43,892 INFO L87 Difference]: Start difference. First operand 260 states and 683 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:32:44,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:32:44,018 INFO L93 Difference]: Finished difference Result 255 states and 588 transitions. [2022-11-21 16:32:44,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:32:44,019 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-11-21 16:32:44,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:32:44,020 INFO L225 Difference]: With dead ends: 255 [2022-11-21 16:32:44,020 INFO L226 Difference]: Without dead ends: 185 [2022-11-21 16:32:44,021 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:32:44,021 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 22 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:32:44,022 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 15 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:32:44,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2022-11-21 16:32:44,029 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 185. [2022-11-21 16:32:44,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 184 states have (on average 2.244565217391304) internal successors, (413), 184 states have internal predecessors, (413), 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) [2022-11-21 16:32:44,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 413 transitions. [2022-11-21 16:32:44,031 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 413 transitions. Word has length 14 [2022-11-21 16:32:44,031 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:32:44,031 INFO L495 AbstractCegarLoop]: Abstraction has 185 states and 413 transitions. [2022-11-21 16:32:44,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:32:44,032 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 413 transitions. [2022-11-21 16:32:44,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-21 16:32:44,033 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:32:44,033 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:32:44,033 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-11-21 16:32:44,034 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:32:44,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:32:44,034 INFO L85 PathProgramCache]: Analyzing trace with hash -711488859, now seen corresponding path program 1 times [2022-11-21 16:32:44,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:32:44,035 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886049574] [2022-11-21 16:32:44,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:32:44,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:32:44,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:44,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:32:44,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:32:44,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886049574] [2022-11-21 16:32:44,275 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886049574] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:32:44,276 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:32:44,276 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:32:44,276 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640643146] [2022-11-21 16:32:44,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:32:44,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:32:44,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:32:44,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:32:44,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:32:44,278 INFO L87 Difference]: Start difference. First operand 185 states and 413 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:32:44,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:32:44,405 INFO L93 Difference]: Finished difference Result 150 states and 301 transitions. [2022-11-21 16:32:44,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:32:44,406 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-11-21 16:32:44,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:32:44,407 INFO L225 Difference]: With dead ends: 150 [2022-11-21 16:32:44,407 INFO L226 Difference]: Without dead ends: 112 [2022-11-21 16:32:44,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:32:44,408 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 46 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:32:44,408 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 18 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:32:44,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2022-11-21 16:32:44,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2022-11-21 16:32:44,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 1.936936936936937) internal successors, (215), 111 states have internal predecessors, (215), 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) [2022-11-21 16:32:44,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 215 transitions. [2022-11-21 16:32:44,413 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 215 transitions. Word has length 15 [2022-11-21 16:32:44,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:32:44,413 INFO L495 AbstractCegarLoop]: Abstraction has 112 states and 215 transitions. [2022-11-21 16:32:44,413 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:32:44,413 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 215 transitions. [2022-11-21 16:32:44,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-21 16:32:44,414 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:32:44,414 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:32:44,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-11-21 16:32:44,414 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:32:44,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:32:44,416 INFO L85 PathProgramCache]: Analyzing trace with hash 885615834, now seen corresponding path program 1 times [2022-11-21 16:32:44,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:32:44,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826142500] [2022-11-21 16:32:44,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:32:44,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:32:44,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:44,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:32:44,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:32:44,648 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826142500] [2022-11-21 16:32:44,648 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826142500] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:32:44,648 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:32:44,649 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:32:44,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967111379] [2022-11-21 16:32:44,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:32:44,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:32:44,651 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:32:44,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:32:44,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:32:44,653 INFO L87 Difference]: Start difference. First operand 112 states and 215 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:32:44,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:32:44,714 INFO L93 Difference]: Finished difference Result 151 states and 280 transitions. [2022-11-21 16:32:44,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:32:44,716 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-11-21 16:32:44,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:32:44,718 INFO L225 Difference]: With dead ends: 151 [2022-11-21 16:32:44,719 INFO L226 Difference]: Without dead ends: 109 [2022-11-21 16:32:44,719 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:32:44,720 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 4 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:32:44,721 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 6 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:32:44,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 109 states. [2022-11-21 16:32:44,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 109 to 107. [2022-11-21 16:32:44,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 106 states have (on average 1.7924528301886793) internal successors, (190), 106 states have internal predecessors, (190), 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) [2022-11-21 16:32:44,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 190 transitions. [2022-11-21 16:32:44,727 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 190 transitions. Word has length 16 [2022-11-21 16:32:44,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:32:44,728 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 190 transitions. [2022-11-21 16:32:44,728 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:32:44,728 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 190 transitions. [2022-11-21 16:32:44,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-21 16:32:44,729 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:32:44,729 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:32:44,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-11-21 16:32:44,730 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:32:44,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:32:44,731 INFO L85 PathProgramCache]: Analyzing trace with hash 686017018, now seen corresponding path program 1 times [2022-11-21 16:32:44,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:32:44,731 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [957055028] [2022-11-21 16:32:44,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:32:44,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:32:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:32:44,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:32:44,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-21 16:32:44,988 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [957055028] [2022-11-21 16:32:44,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [957055028] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:32:44,989 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:32:44,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-21 16:32:44,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868162555] [2022-11-21 16:32:44,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:32:44,990 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-11-21 16:32:44,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-21 16:32:44,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-11-21 16:32:44,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-11-21 16:32:44,992 INFO L87 Difference]: Start difference. First operand 107 states and 190 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:32:45,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:32:45,115 INFO L93 Difference]: Finished difference Result 93 states and 162 transitions. [2022-11-21 16:32:45,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-21 16:32:45,116 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-21 16:32:45,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:32:45,117 INFO L225 Difference]: With dead ends: 93 [2022-11-21 16:32:45,117 INFO L226 Difference]: Without dead ends: 35 [2022-11-21 16:32:45,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-11-21 16:32:45,118 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 60 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 9 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:32:45,118 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 9 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:32:45,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-11-21 16:32:45,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 35. [2022-11-21 16:32:45,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.5294117647058822) internal successors, (52), 34 states have internal predecessors, (52), 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) [2022-11-21 16:32:45,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 52 transitions. [2022-11-21 16:32:45,120 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 52 transitions. Word has length 17 [2022-11-21 16:32:45,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:32:45,120 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 52 transitions. [2022-11-21 16:32:45,121 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:32:45,121 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 52 transitions. [2022-11-21 16:32:45,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-11-21 16:32:45,121 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:32:45,121 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:32:45,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-11-21 16:32:45,122 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:32:45,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:32:45,122 INFO L85 PathProgramCache]: Analyzing trace with hash -574021993, now seen corresponding path program 1 times [2022-11-21 16:32:45,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-21 16:32:45,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024903869] [2022-11-21 16:32:45,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:32:45,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-21 16:32:45,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:32:45,186 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:32:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:32:45,327 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-21 16:32:45,327 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 16:32:45,328 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2022-11-21 16:32:45,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (11 of 13 remaining) [2022-11-21 16:32:45,331 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2022-11-21 16:32:45,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2022-11-21 16:32:45,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2022-11-21 16:32:45,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2022-11-21 16:32:45,332 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2022-11-21 16:32:45,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2022-11-21 16:32:45,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (4 of 13 remaining) [2022-11-21 16:32:45,333 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2022-11-21 16:32:45,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2022-11-21 16:32:45,334 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2022-11-21 16:32:45,335 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2022-11-21 16:32:45,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-11-21 16:32:45,339 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:32:45,345 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:32:45,346 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:32:45,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:32:45 BasicIcfg [2022-11-21 16:32:45,469 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:32:45,470 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:32:45,470 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:32:45,470 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:32:45,471 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:32:26" (3/4) ... [2022-11-21 16:32:45,474 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 16:32:45,474 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:32:45,475 INFO L158 Benchmark]: Toolchain (without parser) took 21478.14ms. Allocated memory was 157.3MB in the beginning and 327.2MB in the end (delta: 169.9MB). Free memory was 116.5MB in the beginning and 136.9MB in the end (delta: -20.3MB). Peak memory consumption was 149.1MB. Max. memory is 16.1GB. [2022-11-21 16:32:45,476 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 119.5MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:32:45,476 INFO L158 Benchmark]: CACSL2BoogieTranslator took 752.97ms. Allocated memory is still 157.3MB. Free memory was 116.5MB in the beginning and 112.1MB in the end (delta: 4.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-11-21 16:32:45,478 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.94ms. Allocated memory is still 157.3MB. Free memory was 112.1MB in the beginning and 109.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:32:45,479 INFO L158 Benchmark]: Boogie Preprocessor took 43.18ms. Allocated memory is still 157.3MB. Free memory was 109.2MB in the beginning and 107.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:32:45,479 INFO L158 Benchmark]: RCFGBuilder took 1270.91ms. Allocated memory is still 157.3MB. Free memory was 107.1MB in the beginning and 73.6MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-11-21 16:32:45,480 INFO L158 Benchmark]: TraceAbstraction took 19334.10ms. Allocated memory was 157.3MB in the beginning and 327.2MB in the end (delta: 169.9MB). Free memory was 72.9MB in the beginning and 136.9MB in the end (delta: -63.9MB). Peak memory consumption was 108.3MB. Max. memory is 16.1GB. [2022-11-21 16:32:45,480 INFO L158 Benchmark]: Witness Printer took 5.05ms. Allocated memory is still 327.2MB. Free memory is still 136.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:32:45,482 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 119.5MB. Free memory is still 87.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 752.97ms. Allocated memory is still 157.3MB. Free memory was 116.5MB in the beginning and 112.1MB in the end (delta: 4.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.94ms. Allocated memory is still 157.3MB. Free memory was 112.1MB in the beginning and 109.2MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.18ms. Allocated memory is still 157.3MB. Free memory was 109.2MB in the beginning and 107.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1270.91ms. Allocated memory is still 157.3MB. Free memory was 107.1MB in the beginning and 73.6MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 19334.10ms. Allocated memory was 157.3MB in the beginning and 327.2MB in the end (delta: 169.9MB). Free memory was 72.9MB in the beginning and 136.9MB in the end (delta: -63.9MB). Peak memory consumption was 108.3MB. Max. memory is 16.1GB. * Witness Printer took 5.05ms. Allocated memory is still 327.2MB. Free memory is still 136.9MB. 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: 8.2s, 130 PlacesBefore, 43 PlacesAfterwards, 122 TransitionsBefore, 34 TransitionsAfterwards, 2146 CoEnabledTransitionPairs, 7 FixpointIterations, 46 TrivialSequentialCompositions, 60 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 114 TotalNumberOfCompositions, 5471 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2995, independent: 2832, independent conditional: 0, independent unconditional: 2832, dependent: 163, dependent conditional: 0, dependent unconditional: 163, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1599, independent: 1547, independent conditional: 0, independent unconditional: 1547, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1599, independent: 1518, independent conditional: 0, independent unconditional: 1518, dependent: 81, dependent conditional: 0, dependent unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 81, independent: 29, independent conditional: 0, independent unconditional: 29, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 654, independent: 58, independent conditional: 0, independent unconditional: 58, dependent: 595, dependent conditional: 0, dependent unconditional: 595, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2995, independent: 1285, independent conditional: 0, independent unconditional: 1285, dependent: 111, dependent conditional: 0, dependent unconditional: 111, unknown: 1599, unknown conditional: 0, unknown unconditional: 1599] , Statistics on independence cache: Total cache size (in pairs): 163, Positive cache size: 146, Positive conditional cache size: 0, Positive unconditional cache size: 146, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17, 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: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L710] 0 _Bool main$tmp_guard0; [L711] 0 _Bool main$tmp_guard1; [L713] 0 int x = 0; [L715] 0 int y = 0; [L716] 0 _Bool y$flush_delayed; [L717] 0 int y$mem_tmp; [L718] 0 _Bool y$r_buff0_thd0; [L719] 0 _Bool y$r_buff0_thd1; [L720] 0 _Bool y$r_buff0_thd2; [L721] 0 _Bool y$r_buff0_thd3; [L722] 0 _Bool y$r_buff1_thd0; [L723] 0 _Bool y$r_buff1_thd1; [L724] 0 _Bool y$r_buff1_thd2; [L725] 0 _Bool y$r_buff1_thd3; [L726] 0 _Bool y$read_delayed; [L727] 0 int *y$read_delayed_var; [L728] 0 int y$w_buff0; [L729] 0 _Bool y$w_buff0_used; [L730] 0 int y$w_buff1; [L731] 0 _Bool y$w_buff1_used; [L733] 0 int z = 0; [L734] 0 _Bool weak$$choice0; [L735] 0 _Bool weak$$choice2; [L811] 0 pthread_t t2492; [L812] FCALL, FORK 0 pthread_create(&t2492, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t2492, ((void *)0), P0, ((void *)0))=-3, t2492={5:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L813] 0 pthread_t t2493; [L814] FCALL, FORK 0 pthread_create(&t2493, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t2493, ((void *)0), P1, ((void *)0))=-2, t2492={5:0}, t2493={6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L815] 0 pthread_t t2494; [L816] FCALL, FORK 0 pthread_create(&t2494, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t2494, ((void *)0), P2, ((void *)0))=-1, t2492={5:0}, t2493={6:0}, t2494={3:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L774] 3 y$w_buff1 = y$w_buff0 [L775] 3 y$w_buff0 = 2 [L776] 3 y$w_buff1_used = y$w_buff0_used [L777] 3 y$w_buff0_used = (_Bool)1 [L778] CALL 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L778] RET 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L779] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L780] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L781] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L782] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L783] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L786] 3 z = 1 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L739] 1 z = 2 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L742] 1 x = 1 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L754] 2 x = 2 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L757] 2 y = 1 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L747] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L749] 1 return 0; [L760] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L761] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L762] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L763] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L764] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [\result={0:0}, __unbuffered_cnt=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L767] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L769] 2 return 0; [L789] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L790] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L791] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L792] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L793] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L796] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L798] 3 return 0; [L818] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L820] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L820] RET 0 assume_abort_if_not(main$tmp_guard0) [L822] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L823] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L824] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L825] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L826] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2492={5:0}, t2493={6:0}, t2494={3:0}, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L829] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L830] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L831] 0 y$flush_delayed = weak$$choice2 [L832] 0 y$mem_tmp = y [L833] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L834] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L835] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L836] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L837] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L838] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L839] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L840] 0 main$tmp_guard1 = !(x == 2 && y == 2 && z == 2) [L841] 0 y = y$flush_delayed ? y$mem_tmp : y [L842] 0 y$flush_delayed = (_Bool)0 [L844] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=0, \old(expression)=1, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=49, weak$$choice2=255, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed 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: -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: -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: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 809]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 812]: 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. - UnprovableResult [Line: 814]: 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. - UnprovableResult [Line: 816]: 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 7 procedures, 148 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 19.0s, OverallIterations: 15, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.4s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 303 SdHoareTripleChecker+Valid, 1.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 303 mSDsluCounter, 146 SdHoareTripleChecker+Invalid, 1.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 80 mSDsCounter, 46 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 785 IncrementalHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 46 mSolverCounterUnsat, 66 mSDtfsCounter, 785 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 41 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=860occurred in iteration=0, InterpolantAutomatonStates: 58, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 14 MinimizatonAttempts, 624 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 179 NumberOfCodeBlocks, 179 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 145 ConstructedInterpolants, 0 QuantifiedInterpolants, 1140 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-21 16:32:45,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread-wmm/safe030_power.opt_pso.opt_rmo.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a --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 6e0191a7c0154db5e6d5798f5b20e5814ce0ff555e18a7acf1f1e5e323a36576 --- 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-b5237d8 [2022-11-21 16:32:48,416 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-21 16:32:48,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-21 16:32:48,444 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-21 16:32:48,445 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-21 16:32:48,446 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-21 16:32:48,448 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-21 16:32:48,450 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-21 16:32:48,453 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-21 16:32:48,454 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-21 16:32:48,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-21 16:32:48,457 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-21 16:32:48,458 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-21 16:32:48,459 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-21 16:32:48,461 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-21 16:32:48,462 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-21 16:32:48,463 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-21 16:32:48,465 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-21 16:32:48,467 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-21 16:32:48,469 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-21 16:32:48,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-21 16:32:48,473 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-21 16:32:48,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-21 16:32:48,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-21 16:32:48,485 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-21 16:32:48,495 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-21 16:32:48,495 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-21 16:32:48,496 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-21 16:32:48,497 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-21 16:32:48,498 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-21 16:32:48,499 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-21 16:32:48,500 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-21 16:32:48,501 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-21 16:32:48,511 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-21 16:32:48,512 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-21 16:32:48,513 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-21 16:32:48,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-21 16:32:48,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-21 16:32:48,514 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-21 16:32:48,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-21 16:32:48,517 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-21 16:32:48,518 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-21 16:32:48,570 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-21 16:32:48,574 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-21 16:32:48,576 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-21 16:32:48,577 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-21 16:32:48,578 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-21 16:32:48,578 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-21 16:32:48,579 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-21 16:32:48,579 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-21 16:32:48,580 INFO L138 SettingsManager]: * Use SBE=true [2022-11-21 16:32:48,580 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-21 16:32:48,581 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-21 16:32:48,582 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-21 16:32:48,582 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-21 16:32:48,582 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-21 16:32:48,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-21 16:32:48,583 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-21 16:32:48,583 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-21 16:32:48,583 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-21 16:32:48,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-21 16:32:48,584 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-21 16:32:48,584 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-21 16:32:48,584 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-21 16:32:48,585 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-21 16:32:48,585 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-21 16:32:48,585 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-21 16:32:48,586 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-21 16:32:48,586 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-21 16:32:48,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:32:48,586 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-21 16:32:48,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-21 16:32:48,587 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-21 16:32:48,587 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-21 16:32:48,588 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-21 16:32:48,588 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_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a 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 -> 6e0191a7c0154db5e6d5798f5b20e5814ce0ff555e18a7acf1f1e5e323a36576 [2022-11-21 16:32:49,088 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-21 16:32:49,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-21 16:32:49,122 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-21 16:32:49,124 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-21 16:32:49,124 INFO L275 PluginConnector]: CDTParser initialized [2022-11-21 16:32:49,126 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/../../sv-benchmarks/c/pthread-wmm/safe030_power.opt_pso.opt_rmo.opt.i [2022-11-21 16:32:52,872 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-21 16:32:53,248 INFO L351 CDTParser]: Found 1 translation units. [2022-11-21 16:32:53,249 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/sv-benchmarks/c/pthread-wmm/safe030_power.opt_pso.opt_rmo.opt.i [2022-11-21 16:32:53,286 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/data/082760c5d/4af14b9988ec4542b6a0c6bfb3d727ff/FLAG73182d234 [2022-11-21 16:32:53,303 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/data/082760c5d/4af14b9988ec4542b6a0c6bfb3d727ff [2022-11-21 16:32:53,307 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-21 16:32:53,309 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-21 16:32:53,310 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-21 16:32:53,311 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-21 16:32:53,316 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-21 16:32:53,317 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:32:53" (1/1) ... [2022-11-21 16:32:53,319 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4898d66f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:53, skipping insertion in model container [2022-11-21 16:32:53,320 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:32:53" (1/1) ... [2022-11-21 16:32:53,329 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-21 16:32:53,433 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-21 16:32:53,727 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/sv-benchmarks/c/pthread-wmm/safe030_power.opt_pso.opt_rmo.opt.i[967,980] [2022-11-21 16:32:54,096 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:32:54,125 INFO L203 MainTranslator]: Completed pre-run [2022-11-21 16:32:54,149 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/sv-benchmarks/c/pthread-wmm/safe030_power.opt_pso.opt_rmo.opt.i[967,980] [2022-11-21 16:32:54,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-21 16:32:54,295 INFO L208 MainTranslator]: Completed translation [2022-11-21 16:32:54,296 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:54 WrapperNode [2022-11-21 16:32:54,297 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-21 16:32:54,298 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-21 16:32:54,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-21 16:32:54,299 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-21 16:32:54,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:54" (1/1) ... [2022-11-21 16:32:54,350 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:54" (1/1) ... [2022-11-21 16:32:54,415 INFO L138 Inliner]: procedures = 179, calls = 54, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 142 [2022-11-21 16:32:54,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-21 16:32:54,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-21 16:32:54,420 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-21 16:32:54,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-21 16:32:54,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:54" (1/1) ... [2022-11-21 16:32:54,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:54" (1/1) ... [2022-11-21 16:32:54,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:54" (1/1) ... [2022-11-21 16:32:54,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:54" (1/1) ... [2022-11-21 16:32:54,464 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:54" (1/1) ... [2022-11-21 16:32:54,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:54" (1/1) ... [2022-11-21 16:32:54,484 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:54" (1/1) ... [2022-11-21 16:32:54,486 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:54" (1/1) ... [2022-11-21 16:32:54,490 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-21 16:32:54,507 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-21 16:32:54,508 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-21 16:32:54,508 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-21 16:32:54,509 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:54" (1/1) ... [2022-11-21 16:32:54,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-21 16:32:54,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/z3 [2022-11-21 16:32:54,561 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-21 16:32:54,595 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-21 16:32:54,635 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-11-21 16:32:54,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-21 16:32:54,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-21 16:32:54,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-21 16:32:54,636 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-21 16:32:54,638 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-21 16:32:54,638 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-11-21 16:32:54,638 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-11-21 16:32:54,639 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-11-21 16:32:54,639 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-11-21 16:32:54,639 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-11-21 16:32:54,639 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-11-21 16:32:54,640 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-11-21 16:32:54,640 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-21 16:32:54,640 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-21 16:32:54,642 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-21 16:32:54,873 INFO L235 CfgBuilder]: Building ICFG [2022-11-21 16:32:54,876 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-21 16:32:55,426 INFO L276 CfgBuilder]: Performing block encoding [2022-11-21 16:32:55,786 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-21 16:32:55,787 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-21 16:32:55,790 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:32:55 BoogieIcfgContainer [2022-11-21 16:32:55,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-21 16:32:55,793 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-21 16:32:55,793 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-21 16:32:55,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-21 16:32:55,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.11 04:32:53" (1/3) ... [2022-11-21 16:32:55,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e955ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:32:55, skipping insertion in model container [2022-11-21 16:32:55,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:32:54" (2/3) ... [2022-11-21 16:32:55,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e955ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.11 04:32:55, skipping insertion in model container [2022-11-21 16:32:55,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:32:55" (3/3) ... [2022-11-21 16:32:55,801 INFO L112 eAbstractionObserver]: Analyzing ICFG safe030_power.opt_pso.opt_rmo.opt.i [2022-11-21 16:32:55,826 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-21 16:32:55,826 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2022-11-21 16:32:55,827 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-21 16:32:55,980 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-21 16:32:56,038 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-21 16:32:56,067 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 131 places, 123 transitions, 261 flow [2022-11-21 16:32:56,073 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 131 places, 123 transitions, 261 flow [2022-11-21 16:32:56,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 131 places, 123 transitions, 261 flow [2022-11-21 16:32:56,188 INFO L130 PetriNetUnfolder]: 2/120 cut-off events. [2022-11-21 16:32:56,189 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-21 16:32:56,197 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 120 events. 2/120 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 0 based on Foata normal form. 0/109 useless extension candidates. Maximal degree in co-relation 79. Up to 2 conditions per place. [2022-11-21 16:32:56,202 INFO L119 LiptonReduction]: Number of co-enabled transitions 2146 [2022-11-21 16:33:05,747 INFO L134 LiptonReduction]: Checked pairs total: 4985 [2022-11-21 16:33:05,747 INFO L136 LiptonReduction]: Total number of compositions: 117 [2022-11-21 16:33:05,757 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 43 places, 34 transitions, 83 flow [2022-11-21 16:33:05,882 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 860 states, 849 states have (on average 3.2909305064782095) internal successors, (2794), 859 states have internal predecessors, (2794), 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) [2022-11-21 16:33:05,910 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-21 16:33:05,919 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;@10cac755, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-21 16:33:05,920 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-21 16:33:05,925 INFO L276 IsEmpty]: Start isEmpty. Operand has 860 states, 849 states have (on average 3.2909305064782095) internal successors, (2794), 859 states have internal predecessors, (2794), 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) [2022-11-21 16:33:05,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-21 16:33:05,931 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:05,933 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-21 16:33:05,933 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:33:05,942 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:05,943 INFO L85 PathProgramCache]: Analyzing trace with hash 521, now seen corresponding path program 1 times [2022-11-21 16:33:05,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:33:05,964 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1981951710] [2022-11-21 16:33:05,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:05,965 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 [2022-11-21 16:33:05,966 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:33:05,975 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 16:33:06,042 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:33:06,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:06,129 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-21 16:33:06,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:33:06,140 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:06,140 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:33:06,141 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:33:06,142 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1981951710] [2022-11-21 16:33:06,142 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1981951710] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:33:06,143 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:33:06,143 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-21 16:33:06,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874190167] [2022-11-21 16:33:06,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:33:06,151 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-21 16:33:06,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:33:06,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-21 16:33:06,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-21 16:33:06,182 INFO L87 Difference]: Start difference. First operand has 860 states, 849 states have (on average 3.2909305064782095) internal successors, (2794), 859 states have internal predecessors, (2794), 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) [2022-11-21 16:33:06,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:33:06,434 INFO L93 Difference]: Finished difference Result 810 states and 2556 transitions. [2022-11-21 16:33:06,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-21 16:33:06,438 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 [2022-11-21 16:33:06,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:33:06,502 INFO L225 Difference]: With dead ends: 810 [2022-11-21 16:33:06,502 INFO L226 Difference]: Without dead ends: 810 [2022-11-21 16:33:06,503 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 [2022-11-21 16:33:06,507 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:33:06,508 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:33:06,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 810 states. [2022-11-21 16:33:06,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 810 to 810. [2022-11-21 16:33:06,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 810 states, 805 states have (on average 3.1751552795031057) internal successors, (2556), 809 states have internal predecessors, (2556), 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) [2022-11-21 16:33:06,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 810 states to 810 states and 2556 transitions. [2022-11-21 16:33:06,697 INFO L78 Accepts]: Start accepts. Automaton has 810 states and 2556 transitions. Word has length 1 [2022-11-21 16:33:06,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:33:06,699 INFO L495 AbstractCegarLoop]: Abstraction has 810 states and 2556 transitions. [2022-11-21 16:33:06,700 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) [2022-11-21 16:33:06,701 INFO L276 IsEmpty]: Start isEmpty. Operand 810 states and 2556 transitions. [2022-11-21 16:33:06,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-21 16:33:06,704 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:06,705 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:33:06,726 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:33:06,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:33:06,915 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting P2Err0ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:33:06,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:06,916 INFO L85 PathProgramCache]: Analyzing trace with hash 94887964, now seen corresponding path program 1 times [2022-11-21 16:33:06,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:33:06,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1824075247] [2022-11-21 16:33:06,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:06,917 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 [2022-11-21 16:33:06,918 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:33:06,922 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 16:33:06,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:33:07,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:07,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 16:33:07,092 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:33:07,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:07,129 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:33:07,129 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:33:07,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1824075247] [2022-11-21 16:33:07,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1824075247] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:33:07,131 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:33:07,137 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-21 16:33:07,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434016143] [2022-11-21 16:33:07,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:33:07,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:33:07,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:33:07,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:33:07,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:33:07,143 INFO L87 Difference]: Start difference. First operand 810 states and 2556 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2022-11-21 16:33:07,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:33:07,270 INFO L93 Difference]: Finished difference Result 670 states and 2079 transitions. [2022-11-21 16:33:07,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:33:07,271 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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 [2022-11-21 16:33:07,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:33:07,285 INFO L225 Difference]: With dead ends: 670 [2022-11-21 16:33:07,290 INFO L226 Difference]: Without dead ends: 650 [2022-11-21 16:33:07,290 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:33:07,292 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 10 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:33:07,292 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 6 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:33:07,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 650 states. [2022-11-21 16:33:07,362 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 650 to 650. [2022-11-21 16:33:07,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 648 states have (on average 3.1296296296296298) internal successors, (2028), 649 states have internal predecessors, (2028), 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) [2022-11-21 16:33:07,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 2028 transitions. [2022-11-21 16:33:07,376 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 2028 transitions. Word has length 7 [2022-11-21 16:33:07,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:33:07,377 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 2028 transitions. [2022-11-21 16:33:07,378 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 2 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) [2022-11-21 16:33:07,378 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 2028 transitions. [2022-11-21 16:33:07,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-11-21 16:33:07,381 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:07,381 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:33:07,398 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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)] Ended with exit code 0 [2022-11-21 16:33:07,598 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:33:07,599 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:33:07,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:07,599 INFO L85 PathProgramCache]: Analyzing trace with hash 721695121, now seen corresponding path program 1 times [2022-11-21 16:33:07,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:33:07,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1222331435] [2022-11-21 16:33:07,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:07,601 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 [2022-11-21 16:33:07,601 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:33:07,603 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 16:33:07,644 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:33:07,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:07,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 16:33:07,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:33:07,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:07,820 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:33:07,820 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:33:07,821 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1222331435] [2022-11-21 16:33:07,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1222331435] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:33:07,821 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:33:07,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-21 16:33:07,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112712929] [2022-11-21 16:33:07,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:33:07,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-21 16:33:07,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:33:07,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-21 16:33:07,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:33:07,824 INFO L87 Difference]: Start difference. First operand 650 states and 2028 transitions. Second operand has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:07,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:33:07,923 INFO L93 Difference]: Finished difference Result 410 states and 1068 transitions. [2022-11-21 16:33:07,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-21 16:33:07,924 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-11-21 16:33:07,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:33:07,926 INFO L225 Difference]: With dead ends: 410 [2022-11-21 16:33:07,927 INFO L226 Difference]: Without dead ends: 410 [2022-11-21 16:33:07,927 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-21 16:33:07,928 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 6 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:33:07,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 6 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:33:07,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2022-11-21 16:33:07,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 410. [2022-11-21 16:33:07,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 408 states have (on average 2.6176470588235294) internal successors, (1068), 409 states have internal predecessors, (1068), 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) [2022-11-21 16:33:07,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 1068 transitions. [2022-11-21 16:33:07,961 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 1068 transitions. Word has length 10 [2022-11-21 16:33:07,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:33:07,962 INFO L495 AbstractCegarLoop]: Abstraction has 410 states and 1068 transitions. [2022-11-21 16:33:07,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:07,963 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 1068 transitions. [2022-11-21 16:33:07,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-21 16:33:07,964 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:07,965 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:33:07,982 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:33:08,177 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:33:08,178 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:33:08,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:08,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1641507194, now seen corresponding path program 1 times [2022-11-21 16:33:08,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:33:08,179 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [867966051] [2022-11-21 16:33:08,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:08,180 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 [2022-11-21 16:33:08,180 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:33:08,181 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 16:33:08,184 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:33:08,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:08,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 6 conjunts are in the unsatisfiable core [2022-11-21 16:33:08,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:33:08,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:08,392 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:33:08,392 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:33:08,393 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [867966051] [2022-11-21 16:33:08,393 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [867966051] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:33:08,393 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:33:08,394 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:33:08,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289517198] [2022-11-21 16:33:08,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:33:08,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:33:08,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:33:08,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:33:08,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:33:08,396 INFO L87 Difference]: Start difference. First operand 410 states and 1068 transitions. Second operand has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:08,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:33:08,553 INFO L93 Difference]: Finished difference Result 210 states and 468 transitions. [2022-11-21 16:33:08,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:33:08,554 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-11-21 16:33:08,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:33:08,556 INFO L225 Difference]: With dead ends: 210 [2022-11-21 16:33:08,556 INFO L226 Difference]: Without dead ends: 210 [2022-11-21 16:33:08,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:33:08,557 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 18 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-21 16:33:08,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 12 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-21 16:33:08,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2022-11-21 16:33:08,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 210. [2022-11-21 16:33:08,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 210 states, 208 states have (on average 2.25) internal successors, (468), 209 states have internal predecessors, (468), 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) [2022-11-21 16:33:08,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 210 states to 210 states and 468 transitions. [2022-11-21 16:33:08,567 INFO L78 Accepts]: Start accepts. Automaton has 210 states and 468 transitions. Word has length 13 [2022-11-21 16:33:08,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:33:08,567 INFO L495 AbstractCegarLoop]: Abstraction has 210 states and 468 transitions. [2022-11-21 16:33:08,567 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.25) internal successors, (13), 3 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:08,568 INFO L276 IsEmpty]: Start isEmpty. Operand 210 states and 468 transitions. [2022-11-21 16:33:08,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-11-21 16:33:08,569 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:08,569 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:33:08,596 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:33:08,783 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:33:08,784 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:33:08,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:08,785 INFO L85 PathProgramCache]: Analyzing trace with hash -1308883058, now seen corresponding path program 1 times [2022-11-21 16:33:08,785 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:33:08,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [353887493] [2022-11-21 16:33:08,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:08,786 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 [2022-11-21 16:33:08,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:33:08,787 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 16:33:08,803 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:33:08,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:08,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 7 conjunts are in the unsatisfiable core [2022-11-21 16:33:08,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:33:09,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:09,096 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:33:09,096 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:33:09,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [353887493] [2022-11-21 16:33:09,096 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [353887493] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:33:09,096 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:33:09,097 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-21 16:33:09,097 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979974087] [2022-11-21 16:33:09,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:33:09,098 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:33:09,098 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:33:09,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:33:09,098 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:33:09,099 INFO L87 Difference]: Start difference. First operand 210 states and 468 transitions. Second operand has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:09,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:33:09,312 INFO L93 Difference]: Finished difference Result 155 states and 358 transitions. [2022-11-21 16:33:09,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:33:09,313 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-11-21 16:33:09,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:33:09,314 INFO L225 Difference]: With dead ends: 155 [2022-11-21 16:33:09,314 INFO L226 Difference]: Without dead ends: 155 [2022-11-21 16:33:09,314 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:33:09,315 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 25 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 135 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:33:09,315 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 27 Invalid, 135 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:33:09,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2022-11-21 16:33:09,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 155. [2022-11-21 16:33:09,323 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 153 states have (on average 2.3398692810457518) internal successors, (358), 154 states have internal predecessors, (358), 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) [2022-11-21 16:33:09,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 358 transitions. [2022-11-21 16:33:09,324 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 358 transitions. Word has length 17 [2022-11-21 16:33:09,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:33:09,325 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 358 transitions. [2022-11-21 16:33:09,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:09,325 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 358 transitions. [2022-11-21 16:33:09,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-21 16:33:09,329 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:09,329 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:33:09,347 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:33:09,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:33:09,547 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:33:09,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:09,548 INFO L85 PathProgramCache]: Analyzing trace with hash -1966026340, now seen corresponding path program 1 times [2022-11-21 16:33:09,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:33:09,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1063713297] [2022-11-21 16:33:09,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:09,548 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 [2022-11-21 16:33:09,549 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:33:09,550 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 16:33:09,552 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:33:09,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:09,765 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 14 conjunts are in the unsatisfiable core [2022-11-21 16:33:09,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:33:10,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:10,185 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:33:10,185 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:33:10,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1063713297] [2022-11-21 16:33:10,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1063713297] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:33:10,186 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:33:10,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:33:10,186 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370050654] [2022-11-21 16:33:10,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:33:10,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-21 16:33:10,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:33:10,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-21 16:33:10,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:33:10,188 INFO L87 Difference]: Start difference. First operand 155 states and 358 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:10,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:33:10,407 INFO L93 Difference]: Finished difference Result 154 states and 357 transitions. [2022-11-21 16:33:10,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-21 16:33:10,408 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-21 16:33:10,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:33:10,409 INFO L225 Difference]: With dead ends: 154 [2022-11-21 16:33:10,409 INFO L226 Difference]: Without dead ends: 154 [2022-11-21 16:33:10,409 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:33:10,410 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 11 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:33:10,411 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 18 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:33:10,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2022-11-21 16:33:10,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 154. [2022-11-21 16:33:10,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 153 states have (on average 2.3333333333333335) internal successors, (357), 153 states have internal predecessors, (357), 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) [2022-11-21 16:33:10,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 357 transitions. [2022-11-21 16:33:10,416 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 357 transitions. Word has length 21 [2022-11-21 16:33:10,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:33:10,416 INFO L495 AbstractCegarLoop]: Abstraction has 154 states and 357 transitions. [2022-11-21 16:33:10,417 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:10,417 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 357 transitions. [2022-11-21 16:33:10,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-21 16:33:10,417 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:10,418 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:33:10,445 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:33:10,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:33:10,632 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:33:10,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:10,633 INFO L85 PathProgramCache]: Analyzing trace with hash -1966026381, now seen corresponding path program 1 times [2022-11-21 16:33:10,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:33:10,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [583034798] [2022-11-21 16:33:10,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-21 16:33:10,633 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 [2022-11-21 16:33:10,634 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:33:10,634 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 16:33:10,636 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:33:10,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-21 16:33:10,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-21 16:33:10,796 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:33:11,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:11,241 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:33:11,241 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:33:11,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [583034798] [2022-11-21 16:33:11,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [583034798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:33:11,242 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:33:11,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-21 16:33:11,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097695862] [2022-11-21 16:33:11,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:33:11,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-21 16:33:11,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:33:11,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-21 16:33:11,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-21 16:33:11,244 INFO L87 Difference]: Start difference. First operand 154 states and 357 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:11,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:33:11,418 INFO L93 Difference]: Finished difference Result 213 states and 478 transitions. [2022-11-21 16:33:11,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-21 16:33:11,419 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-21 16:33:11,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:33:11,420 INFO L225 Difference]: With dead ends: 213 [2022-11-21 16:33:11,420 INFO L226 Difference]: Without dead ends: 98 [2022-11-21 16:33:11,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-21 16:33:11,421 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 12 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:33:11,421 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 12 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:33:11,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-11-21 16:33:11,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-11-21 16:33:11,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 97 states have (on average 2.0309278350515463) internal successors, (197), 97 states have internal predecessors, (197), 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) [2022-11-21 16:33:11,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 197 transitions. [2022-11-21 16:33:11,426 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 197 transitions. Word has length 21 [2022-11-21 16:33:11,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:33:11,426 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 197 transitions. [2022-11-21 16:33:11,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:11,426 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 197 transitions. [2022-11-21 16:33:11,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-21 16:33:11,428 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:11,428 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:33:11,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:33:11,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:33:11,639 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:33:11,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:11,640 INFO L85 PathProgramCache]: Analyzing trace with hash -912923713, now seen corresponding path program 2 times [2022-11-21 16:33:11,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:33:11,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1154703254] [2022-11-21 16:33:11,640 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-11-21 16:33:11,641 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 [2022-11-21 16:33:11,641 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:33:11,645 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 16:33:11,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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 (9)] Waiting until timeout for monitored process [2022-11-21 16:33:11,807 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-11-21 16:33:11,807 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-11-21 16:33:11,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 16 conjunts are in the unsatisfiable core [2022-11-21 16:33:11,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-21 16:33:12,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-21 16:33:12,177 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-21 16:33:12,177 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-21 16:33:12,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1154703254] [2022-11-21 16:33:12,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1154703254] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-21 16:33:12,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-21 16:33:12,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-11-21 16:33:12,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511724044] [2022-11-21 16:33:12,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-21 16:33:12,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-11-21 16:33:12,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-21 16:33:12,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-11-21 16:33:12,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-11-21 16:33:12,180 INFO L87 Difference]: Start difference. First operand 98 states and 197 transitions. Second operand has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:12,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-21 16:33:12,399 INFO L93 Difference]: Finished difference Result 113 states and 220 transitions. [2022-11-21 16:33:12,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-11-21 16:33:12,400 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 21 [2022-11-21 16:33:12,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-21 16:33:12,401 INFO L225 Difference]: With dead ends: 113 [2022-11-21 16:33:12,401 INFO L226 Difference]: Without dead ends: 86 [2022-11-21 16:33:12,402 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-11-21 16:33:12,402 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 50 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 109 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 109 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-11-21 16:33:12,403 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 18 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 109 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-11-21 16:33:12,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 86 states. [2022-11-21 16:33:12,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 86 to 86. [2022-11-21 16:33:12,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 85 states have (on average 1.988235294117647) internal successors, (169), 85 states have internal predecessors, (169), 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) [2022-11-21 16:33:12,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 169 transitions. [2022-11-21 16:33:12,406 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 169 transitions. Word has length 21 [2022-11-21 16:33:12,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-21 16:33:12,406 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 169 transitions. [2022-11-21 16:33:12,407 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 2.625) internal successors, (21), 8 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-21 16:33:12,407 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 169 transitions. [2022-11-21 16:33:12,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-11-21 16:33:12,407 INFO L187 NwaCegarLoop]: Found error trace [2022-11-21 16:33:12,407 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-21 16:33:12,433 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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 (9)] Forceful destruction successful, exit code 0 [2022-11-21 16:33:12,618 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:33:12,618 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [P2Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-21 16:33:12,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-21 16:33:12,619 INFO L85 PathProgramCache]: Analyzing trace with hash 1659810725, now seen corresponding path program 3 times [2022-11-21 16:33:12,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-21 16:33:12,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1151644887] [2022-11-21 16:33:12,620 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-11-21 16:33:12,620 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 [2022-11-21 16:33:12,620 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/mathsat [2022-11-21 16:33:12,621 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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) [2022-11-21 16:33:12,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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 (10)] Waiting until timeout for monitored process [2022-11-21 16:33:12,812 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-11-21 16:33:12,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2022-11-21 16:33:12,812 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-21 16:33:12,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-21 16:33:13,029 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-21 16:33:13,043 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-21 16:33:13,044 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2022-11-21 16:33:13,046 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (11 of 13 remaining) [2022-11-21 16:33:13,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2022-11-21 16:33:13,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2022-11-21 16:33:13,047 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2022-11-21 16:33:13,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2022-11-21 16:33:13,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2022-11-21 16:33:13,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2022-11-21 16:33:13,048 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (4 of 13 remaining) [2022-11-21 16:33:13,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 13 remaining) [2022-11-21 16:33:13,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2022-11-21 16:33:13,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2022-11-21 16:33:13,049 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location P2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2022-11-21 16:33:13,080 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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 (10)] Forceful destruction successful, exit code 0 [2022-11-21 16:33:13,279 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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 [2022-11-21 16:33:13,282 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1] [2022-11-21 16:33:13,288 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-21 16:33:13,288 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-21 16:33:13,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.11 04:33:13 BasicIcfg [2022-11-21 16:33:13,388 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-21 16:33:13,389 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-21 16:33:13,389 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-21 16:33:13,389 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-21 16:33:13,400 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.11 04:32:55" (3/4) ... [2022-11-21 16:33:13,404 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-21 16:33:13,404 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-21 16:33:13,405 INFO L158 Benchmark]: Toolchain (without parser) took 20096.53ms. Allocated memory was 67.1MB in the beginning and 136.3MB in the end (delta: 69.2MB). Free memory was 33.6MB in the beginning and 87.0MB in the end (delta: -53.4MB). Peak memory consumption was 14.9MB. Max. memory is 16.1GB. [2022-11-21 16:33:13,405 INFO L158 Benchmark]: CDTParser took 0.23ms. Allocated memory is still 67.1MB. Free memory is still 44.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:33:13,406 INFO L158 Benchmark]: CACSL2BoogieTranslator took 986.85ms. Allocated memory was 67.1MB in the beginning and 94.4MB in the end (delta: 27.3MB). Free memory was 33.5MB in the beginning and 68.6MB in the end (delta: -35.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2022-11-21 16:33:13,407 INFO L158 Benchmark]: Boogie Procedure Inliner took 120.15ms. Allocated memory is still 94.4MB. Free memory was 68.6MB in the beginning and 65.9MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-21 16:33:13,407 INFO L158 Benchmark]: Boogie Preprocessor took 86.36ms. Allocated memory is still 94.4MB. Free memory was 65.9MB in the beginning and 63.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-21 16:33:13,408 INFO L158 Benchmark]: RCFGBuilder took 1283.18ms. Allocated memory is still 94.4MB. Free memory was 63.8MB in the beginning and 48.4MB in the end (delta: 15.4MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2022-11-21 16:33:13,408 INFO L158 Benchmark]: TraceAbstraction took 17595.24ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 47.3MB in the beginning and 88.1MB in the end (delta: -40.8MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. [2022-11-21 16:33:13,409 INFO L158 Benchmark]: Witness Printer took 15.77ms. Allocated memory is still 136.3MB. Free memory was 88.1MB in the beginning and 87.0MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-21 16:33:13,412 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23ms. Allocated memory is still 67.1MB. Free memory is still 44.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 986.85ms. Allocated memory was 67.1MB in the beginning and 94.4MB in the end (delta: 27.3MB). Free memory was 33.5MB in the beginning and 68.6MB in the end (delta: -35.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 120.15ms. Allocated memory is still 94.4MB. Free memory was 68.6MB in the beginning and 65.9MB in the end (delta: 2.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 86.36ms. Allocated memory is still 94.4MB. Free memory was 65.9MB in the beginning and 63.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1283.18ms. Allocated memory is still 94.4MB. Free memory was 63.8MB in the beginning and 48.4MB in the end (delta: 15.4MB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * TraceAbstraction took 17595.24ms. Allocated memory was 94.4MB in the beginning and 136.3MB in the end (delta: 41.9MB). Free memory was 47.3MB in the beginning and 88.1MB in the end (delta: -40.8MB). Peak memory consumption was 1.1MB. Max. memory is 16.1GB. * Witness Printer took 15.77ms. Allocated memory is still 136.3MB. Free memory was 88.1MB in the beginning and 87.0MB in the end (delta: 1.0MB). 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: 9.7s, 131 PlacesBefore, 43 PlacesAfterwards, 123 TransitionsBefore, 34 TransitionsAfterwards, 2146 CoEnabledTransitionPairs, 6 FixpointIterations, 49 TrivialSequentialCompositions, 59 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 117 TotalNumberOfCompositions, 4985 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2768, independent: 2638, independent conditional: 0, independent unconditional: 2638, dependent: 130, dependent conditional: 0, dependent unconditional: 130, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1546, independent: 1506, independent conditional: 0, independent unconditional: 1506, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1546, independent: 1486, independent conditional: 0, independent unconditional: 1486, dependent: 60, dependent conditional: 0, dependent unconditional: 60, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 60, independent: 20, independent conditional: 0, independent unconditional: 20, dependent: 40, dependent conditional: 0, dependent unconditional: 40, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 450, independent: 51, independent conditional: 0, independent unconditional: 51, dependent: 398, dependent conditional: 0, dependent unconditional: 398, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2768, independent: 1132, independent conditional: 0, independent unconditional: 1132, dependent: 90, dependent conditional: 0, dependent unconditional: 90, unknown: 1546, unknown conditional: 0, unknown unconditional: 1546] , Statistics on independence cache: Total cache size (in pairs): 156, Positive cache size: 133, Positive conditional cache size: 0, Positive unconditional cache size: 133, Negative cache size: 23, Negative conditional cache size: 0, Negative unconditional cache size: 23, 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: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 18. Possible FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L710] 0 _Bool main$tmp_guard0; [L711] 0 _Bool main$tmp_guard1; [L713] 0 int x = 0; [L715] 0 int y = 0; [L716] 0 _Bool y$flush_delayed; [L717] 0 int y$mem_tmp; [L718] 0 _Bool y$r_buff0_thd0; [L719] 0 _Bool y$r_buff0_thd1; [L720] 0 _Bool y$r_buff0_thd2; [L721] 0 _Bool y$r_buff0_thd3; [L722] 0 _Bool y$r_buff1_thd0; [L723] 0 _Bool y$r_buff1_thd1; [L724] 0 _Bool y$r_buff1_thd2; [L725] 0 _Bool y$r_buff1_thd3; [L726] 0 _Bool y$read_delayed; [L727] 0 int *y$read_delayed_var; [L728] 0 int y$w_buff0; [L729] 0 _Bool y$w_buff0_used; [L730] 0 int y$w_buff1; [L731] 0 _Bool y$w_buff1_used; [L733] 0 int z = 0; [L734] 0 _Bool weak$$choice0; [L735] 0 _Bool weak$$choice2; [L811] 0 pthread_t t2492; [L812] FCALL, FORK 0 pthread_create(&t2492, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t2492, ((void *)0), P0, ((void *)0))=0, t2492={-6:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L813] 0 pthread_t t2493; [L814] FCALL, FORK 0 pthread_create(&t2493, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t2493, ((void *)0), P1, ((void *)0))=1, t2492={-6:0}, t2493={-10:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L815] 0 pthread_t t2494; [L816] FCALL, FORK 0 pthread_create(&t2494, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, pthread_create(&t2494, ((void *)0), P2, ((void *)0))=2, t2492={-6:0}, t2493={-10:0}, t2494={-2:0}, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L774] 3 y$w_buff1 = y$w_buff0 [L775] 3 y$w_buff0 = 2 [L776] 3 y$w_buff1_used = y$w_buff0_used [L777] 3 y$w_buff0_used = (_Bool)1 [L778] CALL 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L18] COND FALSE 3 !(!expression) [L778] RET 3 __VERIFIER_assert(!(y$w_buff1_used && y$w_buff0_used)) [L779] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L780] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L781] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L782] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L783] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L786] 3 z = 1 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L739] 1 z = 2 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L742] 1 x = 1 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L754] 2 x = 2 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L757] 2 y = 1 VAL [__unbuffered_cnt=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L747] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L749] 1 return 0; [L760] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L761] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L762] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L763] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L764] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 VAL [\result={0:0}, __unbuffered_cnt=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L767] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L769] 2 return 0; [L789] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L790] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L791] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L792] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L793] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=2, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L796] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L798] 3 return 0; [L818] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L820] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L820] RET 0 assume_abort_if_not(main$tmp_guard0) [L822] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L823] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L824] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L825] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L826] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t2492={-6:0}, t2493={-10:0}, t2494={-2:0}, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L829] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L830] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L831] 0 y$flush_delayed = weak$$choice2 [L832] 0 y$mem_tmp = y [L833] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L834] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L835] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L836] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L837] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L838] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L839] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L840] 0 main$tmp_guard1 = !(x == 2 && y == 2 && z == 2) [L841] 0 y = y$flush_delayed ? y$mem_tmp : y [L842] 0 y$flush_delayed = (_Bool)0 [L844] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] 0 reach_error() VAL [\old(expression)=1, \old(expression)=0, \result={0:0}, \result={0:0}, __unbuffered_cnt=3, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, expression=1, expression=0, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=2, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] - UnprovableResult [Line: 18]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed 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: -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: -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: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 809]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 812]: 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. - UnprovableResult [Line: 814]: 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. - UnprovableResult [Line: 816]: 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 7 procedures, 149 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 17.2s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 134 SdHoareTripleChecker+Valid, 1.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 134 mSDsluCounter, 102 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 62 mSDsCounter, 31 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 550 IncrementalHoareTripleChecker+Invalid, 581 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 31 mSolverCounterUnsat, 40 mSDtfsCounter, 550 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 105 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=860occurred in iteration=0, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 103 ConstructedInterpolants, 12 QuantifiedInterpolants, 1006 SizeOfPredicates, 15 NumberOfNonLiveVariables, 969 ConjunctsInSsa, 59 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 [2022-11-21 16:33:13,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e0f17c7b-b610-4003-9995-436a6c2154c5/bin/uautomizer-vX5HgA9Q3a/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