./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1cd82b96c01a730247618eab1464d47c03eec9013c1d245312913e94981f2bce --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:56:49,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:56:49,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:56:49,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:56:49,309 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:56:49,313 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:56:49,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:56:49,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:56:49,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:56:49,330 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:56:49,331 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:56:49,332 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:56:49,333 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:56:49,333 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:56:49,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:56:49,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:56:49,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:56:49,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:56:49,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:56:49,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:56:49,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:56:49,348 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:56:49,350 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:56:49,351 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:56:49,366 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:56:49,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:56:49,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:56:49,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:56:49,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:56:49,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:56:49,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:56:49,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:56:49,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:56:49,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:56:49,374 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:56:49,374 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:56:49,375 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:56:49,375 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:56:49,375 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:56:49,376 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:56:49,377 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:56:49,378 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-11-20 11:56:49,399 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:56:49,400 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:56:49,400 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:56:49,400 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:56:49,401 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:56:49,401 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:56:49,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:56:49,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:56:49,402 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:56:49,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:56:49,403 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:56:49,403 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:56:49,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:56:49,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:56:49,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:56:49,403 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 11:56:49,404 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 11:56:49,404 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 11:56:49,404 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:56:49,404 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:56:49,404 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:56:49,405 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:56:49,405 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:56:49,405 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:56:49,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:56:49,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:56:49,406 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:56:49,406 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:56:49,406 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 11:56:49,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 11:56:49,407 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_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cd82b96c01a730247618eab1464d47c03eec9013c1d245312913e94981f2bce [2022-11-20 11:56:49,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:56:49,757 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:56:49,761 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:56:49,763 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:56:49,763 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:56:49,764 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-11-20 11:56:52,805 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:56:53,192 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:56:53,194 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-11-20 11:56:53,212 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/data/68d6e244b/5e3c4d77c31749b19b5f8637a00c076e/FLAG06dedaac3 [2022-11-20 11:56:53,227 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/data/68d6e244b/5e3c4d77c31749b19b5f8637a00c076e [2022-11-20 11:56:53,230 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:56:53,232 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:56:53,233 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:56:53,233 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:56:53,237 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:56:53,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:56:53" (1/1) ... [2022-11-20 11:56:53,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42131180 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:53, skipping insertion in model container [2022-11-20 11:56:53,240 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:56:53" (1/1) ... [2022-11-20 11:56:53,247 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:56:53,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:56:53,558 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_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i[1103,1116] [2022-11-20 11:56:54,166 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:56:54,182 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:56:54,198 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_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i[1103,1116] [2022-11-20 11:56:54,264 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:56:54,365 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:56:54,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:54 WrapperNode [2022-11-20 11:56:54,368 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:56:54,369 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:56:54,370 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:56:54,370 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:56:54,377 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:54" (1/1) ... [2022-11-20 11:56:54,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:54" (1/1) ... [2022-11-20 11:56:54,457 INFO L138 Inliner]: procedures = 354, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 74 [2022-11-20 11:56:54,458 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:56:54,459 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:56:54,459 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:56:54,459 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:56:54,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:54" (1/1) ... [2022-11-20 11:56:54,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:54" (1/1) ... [2022-11-20 11:56:54,486 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:54" (1/1) ... [2022-11-20 11:56:54,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:54" (1/1) ... [2022-11-20 11:56:54,497 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:54" (1/1) ... [2022-11-20 11:56:54,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:54" (1/1) ... [2022-11-20 11:56:54,519 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:54" (1/1) ... [2022-11-20 11:56:54,521 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:54" (1/1) ... [2022-11-20 11:56:54,525 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:56:54,526 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:56:54,527 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:56:54,527 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:56:54,528 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:54" (1/1) ... [2022-11-20 11:56:54,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:56:54,551 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:56:54,580 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:56:54,602 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:56:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-11-20 11:56:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2022-11-20 11:56:54,624 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2022-11-20 11:56:54,624 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-11-20 11:56:54,624 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-11-20 11:56:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:56:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:56:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 11:56:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 11:56:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:56:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:56:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 11:56:54,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:56:54,626 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:56:54,627 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:56:54,962 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:56:54,964 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:56:55,236 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:56:55,243 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:56:55,244 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:56:55,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:56:55 BoogieIcfgContainer [2022-11-20 11:56:55,246 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:56:55,248 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:56:55,249 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:56:55,252 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:56:55,252 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:56:53" (1/3) ... [2022-11-20 11:56:55,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7789c9a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:56:55, skipping insertion in model container [2022-11-20 11:56:55,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:56:54" (2/3) ... [2022-11-20 11:56:55,253 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7789c9a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:56:55, skipping insertion in model container [2022-11-20 11:56:55,253 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:56:55" (3/3) ... [2022-11-20 11:56:55,255 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-11-20 11:56:55,285 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:56:55,286 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-20 11:56:55,286 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:56:55,373 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 11:56:55,426 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 11:56:55,444 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 112 places, 106 transitions, 228 flow [2022-11-20 11:56:55,455 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 112 places, 106 transitions, 228 flow [2022-11-20 11:56:55,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 112 places, 106 transitions, 228 flow [2022-11-20 11:56:55,543 INFO L130 PetriNetUnfolder]: 1/104 cut-off events. [2022-11-20 11:56:55,544 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 11:56:55,551 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 104 events. 1/104 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 86 event pairs, 0 based on Foata normal form. 0/93 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2022-11-20 11:56:55,553 INFO L119 LiptonReduction]: Number of co-enabled transitions 1108 [2022-11-20 11:57:01,036 INFO L134 LiptonReduction]: Checked pairs total: 2925 [2022-11-20 11:57:01,037 INFO L136 LiptonReduction]: Total number of compositions: 102 [2022-11-20 11:57:01,051 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 31 transitions, 78 flow [2022-11-20 11:57:01,091 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 226 states, 212 states have (on average 2.4150943396226414) internal successors, (512), 225 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:01,112 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:57:01,119 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;@c4b0855, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:57:01,119 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-20 11:57:01,123 INFO L276 IsEmpty]: Start isEmpty. Operand has 226 states, 212 states have (on average 2.4150943396226414) internal successors, (512), 225 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:01,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-20 11:57:01,128 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:01,129 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-20 11:57:01,130 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-20 11:57:01,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:01,136 INFO L85 PathProgramCache]: Analyzing trace with hash 380, now seen corresponding path program 1 times [2022-11-20 11:57:01,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:57:01,148 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445934125] [2022-11-20 11:57:01,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:01,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:57:01,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:01,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:01,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:57:01,460 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445934125] [2022-11-20 11:57:01,461 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445934125] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:01,462 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:01,462 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-20 11:57:01,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761922782] [2022-11-20 11:57:01,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:01,471 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:57:01,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:57:01,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:57:01,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:57:01,508 INFO L87 Difference]: Start difference. First operand has 226 states, 212 states have (on average 2.4150943396226414) internal successors, (512), 225 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:01,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:01,611 INFO L93 Difference]: Finished difference Result 224 states and 510 transitions. [2022-11-20 11:57:01,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:57:01,614 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-20 11:57:01,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:01,635 INFO L225 Difference]: With dead ends: 224 [2022-11-20 11:57:01,636 INFO L226 Difference]: Without dead ends: 224 [2022-11-20 11:57:01,637 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:57:01,643 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:01,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:57:01,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-11-20 11:57:01,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2022-11-20 11:57:01,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 212 states have (on average 2.4056603773584904) internal successors, (510), 223 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:01,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 510 transitions. [2022-11-20 11:57:01,739 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 510 transitions. Word has length 1 [2022-11-20 11:57:01,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:01,740 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 510 transitions. [2022-11-20 11:57:01,741 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:01,741 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 510 transitions. [2022-11-20 11:57:01,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 11:57:01,743 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:01,743 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-20 11:57:01,744 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 11:57:01,744 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-20 11:57:01,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:01,746 INFO L85 PathProgramCache]: Analyzing trace with hash 375090, now seen corresponding path program 1 times [2022-11-20 11:57:01,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:57:01,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599634544] [2022-11-20 11:57:01,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:01,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:57:01,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:02,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:02,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:57:02,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599634544] [2022-11-20 11:57:02,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599634544] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:02,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:02,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 11:57:02,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060379259] [2022-11-20 11:57:02,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:02,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:57:02,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:57:02,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:57:02,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:02,079 INFO L87 Difference]: Start difference. First operand 224 states and 510 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:02,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:02,139 INFO L93 Difference]: Finished difference Result 211 states and 486 transitions. [2022-11-20 11:57:02,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:02,140 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2022-11-20 11:57:02,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:02,144 INFO L225 Difference]: With dead ends: 211 [2022-11-20 11:57:02,145 INFO L226 Difference]: Without dead ends: 211 [2022-11-20 11:57:02,147 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 [2022-11-20 11:57:02,149 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:02,156 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:57:02,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-11-20 11:57:02,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2022-11-20 11:57:02,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 202 states have (on average 2.405940594059406) internal successors, (486), 210 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:02,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 486 transitions. [2022-11-20 11:57:02,176 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 486 transitions. Word has length 3 [2022-11-20 11:57:02,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:02,177 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 486 transitions. [2022-11-20 11:57:02,180 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:02,180 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 486 transitions. [2022-11-20 11:57:02,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 11:57:02,180 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:02,181 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-20 11:57:02,181 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 11:57:02,182 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-20 11:57:02,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:02,183 INFO L85 PathProgramCache]: Analyzing trace with hash 375092, now seen corresponding path program 1 times [2022-11-20 11:57:02,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:57:02,186 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130491363] [2022-11-20 11:57:02,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:02,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:57:02,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:02,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:02,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:57:02,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130491363] [2022-11-20 11:57:02,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130491363] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:02,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:02,312 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 11:57:02,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37453394] [2022-11-20 11:57:02,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:02,312 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:57:02,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:57:02,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:57:02,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:02,314 INFO L87 Difference]: Start difference. First operand 211 states and 486 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:02,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:02,353 INFO L93 Difference]: Finished difference Result 198 states and 462 transitions. [2022-11-20 11:57:02,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:02,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2022-11-20 11:57:02,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:02,356 INFO L225 Difference]: With dead ends: 198 [2022-11-20 11:57:02,357 INFO L226 Difference]: Without dead ends: 198 [2022-11-20 11:57:02,358 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 [2022-11-20 11:57:02,361 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 19 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:02,363 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 1 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:57:02,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-11-20 11:57:02,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2022-11-20 11:57:02,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 192 states have (on average 2.40625) internal successors, (462), 197 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:02,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 462 transitions. [2022-11-20 11:57:02,397 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 462 transitions. Word has length 3 [2022-11-20 11:57:02,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:02,398 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 462 transitions. [2022-11-20 11:57:02,398 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:02,398 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 462 transitions. [2022-11-20 11:57:02,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 11:57:02,399 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:02,399 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 11:57:02,400 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 11:57:02,400 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-20 11:57:02,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:02,401 INFO L85 PathProgramCache]: Analyzing trace with hash 360470344, now seen corresponding path program 1 times [2022-11-20 11:57:02,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:57:02,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277971915] [2022-11-20 11:57:02,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:02,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:57:02,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:02,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:02,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:57:02,599 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277971915] [2022-11-20 11:57:02,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1277971915] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:02,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:02,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 11:57:02,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932191546] [2022-11-20 11:57:02,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:02,601 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:57:02,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:57:02,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:57:02,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:02,602 INFO L87 Difference]: Start difference. First operand 198 states and 462 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:02,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:02,645 INFO L93 Difference]: Finished difference Result 156 states and 349 transitions. [2022-11-20 11:57:02,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:02,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-20 11:57:02,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:02,647 INFO L225 Difference]: With dead ends: 156 [2022-11-20 11:57:02,647 INFO L226 Difference]: Without dead ends: 156 [2022-11-20 11:57:02,647 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 [2022-11-20 11:57:02,648 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:02,649 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 1 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:57:02,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-11-20 11:57:02,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2022-11-20 11:57:02,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 152 states have (on average 2.2960526315789473) internal successors, (349), 155 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:02,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 349 transitions. [2022-11-20 11:57:02,657 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 349 transitions. Word has length 5 [2022-11-20 11:57:02,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:02,658 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 349 transitions. [2022-11-20 11:57:02,659 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:02,659 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 349 transitions. [2022-11-20 11:57:02,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 11:57:02,660 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:02,660 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 11:57:02,660 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 11:57:02,660 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-20 11:57:02,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:02,661 INFO L85 PathProgramCache]: Analyzing trace with hash 360470345, now seen corresponding path program 1 times [2022-11-20 11:57:02,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:57:02,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426099802] [2022-11-20 11:57:02,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:02,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:57:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:02,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:02,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:57:02,801 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426099802] [2022-11-20 11:57:02,801 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426099802] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:02,802 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:02,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 11:57:02,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554779137] [2022-11-20 11:57:02,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:02,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 11:57:02,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:57:02,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 11:57:02,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-11-20 11:57:02,804 INFO L87 Difference]: Start difference. First operand 156 states and 349 transitions. Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:02,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:02,848 INFO L93 Difference]: Finished difference Result 114 states and 236 transitions. [2022-11-20 11:57:02,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:02,849 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-20 11:57:02,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:02,850 INFO L225 Difference]: With dead ends: 114 [2022-11-20 11:57:02,850 INFO L226 Difference]: Without dead ends: 114 [2022-11-20 11:57:02,851 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 [2022-11-20 11:57:02,851 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 33 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:02,852 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 1 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:57:02,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-11-20 11:57:02,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2022-11-20 11:57:02,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 112 states have (on average 2.107142857142857) internal successors, (236), 113 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:02,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 236 transitions. [2022-11-20 11:57:02,857 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 236 transitions. Word has length 5 [2022-11-20 11:57:02,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:02,858 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 236 transitions. [2022-11-20 11:57:02,858 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:02,858 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 236 transitions. [2022-11-20 11:57:02,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 11:57:02,859 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:02,859 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-20 11:57:02,859 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 11:57:02,860 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-20 11:57:02,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:02,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1710320330, now seen corresponding path program 1 times [2022-11-20 11:57:02,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:57:02,861 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266005008] [2022-11-20 11:57:02,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:02,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:57:02,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:02,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:02,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:57:02,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266005008] [2022-11-20 11:57:02,984 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266005008] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:02,984 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:02,984 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 11:57:02,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998225522] [2022-11-20 11:57:02,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:02,985 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:57:02,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:57:02,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:57:02,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:02,987 INFO L87 Difference]: Start difference. First operand 114 states and 236 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:03,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:03,050 INFO L93 Difference]: Finished difference Result 122 states and 244 transitions. [2022-11-20 11:57:03,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:03,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-20 11:57:03,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:03,053 INFO L225 Difference]: With dead ends: 122 [2022-11-20 11:57:03,053 INFO L226 Difference]: Without dead ends: 122 [2022-11-20 11:57:03,053 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 [2022-11-20 11:57:03,057 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 11 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:03,058 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 3 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:57:03,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-11-20 11:57:03,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 110. [2022-11-20 11:57:03,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 108 states have (on average 2.037037037037037) internal successors, (220), 109 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:03,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 220 transitions. [2022-11-20 11:57:03,063 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 220 transitions. Word has length 6 [2022-11-20 11:57:03,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:03,064 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 220 transitions. [2022-11-20 11:57:03,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:03,064 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 220 transitions. [2022-11-20 11:57:03,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 11:57:03,065 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:03,065 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:57:03,065 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 11:57:03,066 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-20 11:57:03,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:03,066 INFO L85 PathProgramCache]: Analyzing trace with hash -637921743, now seen corresponding path program 1 times [2022-11-20 11:57:03,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:57:03,067 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306938478] [2022-11-20 11:57:03,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:03,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:57:03,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:03,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:03,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 11:57:03,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306938478] [2022-11-20 11:57:03,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306938478] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:03,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:03,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-11-20 11:57:03,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504972100] [2022-11-20 11:57:03,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:03,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 11:57:03,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 11:57:03,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 11:57:03,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 11:57:03,311 INFO L87 Difference]: Start difference. First operand 110 states and 220 transitions. Second operand has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:03,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:03,458 INFO L93 Difference]: Finished difference Result 80 states and 128 transitions. [2022-11-20 11:57:03,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-20 11:57:03,459 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-20 11:57:03,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:03,460 INFO L225 Difference]: With dead ends: 80 [2022-11-20 11:57:03,460 INFO L226 Difference]: Without dead ends: 80 [2022-11-20 11:57:03,460 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-11-20 11:57:03,461 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 40 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:03,462 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 0 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:57:03,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states. [2022-11-20 11:57:03,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 76. [2022-11-20 11:57:03,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 74 states have (on average 1.6486486486486487) internal successors, (122), 75 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:03,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 122 transitions. [2022-11-20 11:57:03,466 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 122 transitions. Word has length 8 [2022-11-20 11:57:03,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:03,467 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 122 transitions. [2022-11-20 11:57:03,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.0) internal successors, (8), 5 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:03,467 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 122 transitions. [2022-11-20 11:57:03,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 11:57:03,469 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:03,469 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:57:03,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 11:57:03,469 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-20 11:57:03,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:03,470 INFO L85 PathProgramCache]: Analyzing trace with hash 1597427876, now seen corresponding path program 1 times [2022-11-20 11:57:03,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 11:57:03,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547610613] [2022-11-20 11:57:03,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:03,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 11:57:03,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:57:03,503 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:57:03,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:57:03,558 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 11:57:03,558 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:57:03,559 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2022-11-20 11:57:03,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 13 remaining) [2022-11-20 11:57:03,562 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2022-11-20 11:57:03,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2022-11-20 11:57:03,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2022-11-20 11:57:03,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2022-11-20 11:57:03,563 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2022-11-20 11:57:03,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2022-11-20 11:57:03,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 13 remaining) [2022-11-20 11:57:03,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (3 of 13 remaining) [2022-11-20 11:57:03,564 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2022-11-20 11:57:03,565 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2022-11-20 11:57:03,565 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2022-11-20 11:57:03,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 11:57:03,568 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:57:03,575 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 11:57:03,575 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:57:03,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:57:03 BasicIcfg [2022-11-20 11:57:03,606 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:57:03,606 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:57:03,607 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:57:03,607 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:57:03,607 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:56:55" (3/4) ... [2022-11-20 11:57:03,610 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 11:57:03,611 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:57:03,611 INFO L158 Benchmark]: Toolchain (without parser) took 10379.95ms. Allocated memory was 197.1MB in the beginning and 237.0MB in the end (delta: 39.8MB). Free memory was 149.4MB in the beginning and 169.8MB in the end (delta: -20.4MB). Peak memory consumption was 21.2MB. Max. memory is 16.1GB. [2022-11-20 11:57:03,612 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 140.5MB. Free memory is still 84.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:57:03,612 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1135.23ms. Allocated memory is still 197.1MB. Free memory was 149.4MB in the beginning and 111.7MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2022-11-20 11:57:03,612 INFO L158 Benchmark]: Boogie Procedure Inliner took 89.07ms. Allocated memory is still 197.1MB. Free memory was 111.7MB in the beginning and 108.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:57:03,613 INFO L158 Benchmark]: Boogie Preprocessor took 67.10ms. Allocated memory is still 197.1MB. Free memory was 108.9MB in the beginning and 106.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:57:03,613 INFO L158 Benchmark]: RCFGBuilder took 719.89ms. Allocated memory is still 197.1MB. Free memory was 106.8MB in the beginning and 154.0MB in the end (delta: -47.2MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2022-11-20 11:57:03,613 INFO L158 Benchmark]: TraceAbstraction took 8357.52ms. Allocated memory was 197.1MB in the beginning and 237.0MB in the end (delta: 39.8MB). Free memory was 154.0MB in the beginning and 169.8MB in the end (delta: -15.7MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2022-11-20 11:57:03,614 INFO L158 Benchmark]: Witness Printer took 4.39ms. Allocated memory is still 237.0MB. Free memory is still 169.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:57:03,615 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 140.5MB. Free memory is still 84.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1135.23ms. Allocated memory is still 197.1MB. Free memory was 149.4MB in the beginning and 111.7MB in the end (delta: 37.7MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 89.07ms. Allocated memory is still 197.1MB. Free memory was 111.7MB in the beginning and 108.9MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.10ms. Allocated memory is still 197.1MB. Free memory was 108.9MB in the beginning and 106.8MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 719.89ms. Allocated memory is still 197.1MB. Free memory was 106.8MB in the beginning and 154.0MB in the end (delta: -47.2MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * TraceAbstraction took 8357.52ms. Allocated memory was 197.1MB in the beginning and 237.0MB in the end (delta: 39.8MB). Free memory was 154.0MB in the beginning and 169.8MB in the end (delta: -15.7MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. * Witness Printer took 4.39ms. Allocated memory is still 237.0MB. Free memory is still 169.8MB. 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: 5.6s, 112 PlacesBefore, 38 PlacesAfterwards, 106 TransitionsBefore, 31 TransitionsAfterwards, 1108 CoEnabledTransitionPairs, 7 FixpointIterations, 59 TrivialSequentialCompositions, 39 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 102 TotalNumberOfCompositions, 2925 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1763, independent: 1629, independent conditional: 0, independent unconditional: 1629, dependent: 134, dependent conditional: 0, dependent unconditional: 134, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 797, independent: 763, independent conditional: 0, independent unconditional: 763, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 797, independent: 753, independent conditional: 0, independent unconditional: 753, dependent: 44, dependent conditional: 0, dependent unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 44, independent: 10, independent conditional: 0, independent unconditional: 10, dependent: 34, dependent conditional: 0, dependent unconditional: 34, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 120, independent: 29, independent conditional: 0, independent unconditional: 29, dependent: 91, dependent conditional: 0, dependent unconditional: 91, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1763, independent: 866, independent conditional: 0, independent unconditional: 866, dependent: 100, dependent conditional: 0, dependent unconditional: 100, unknown: 797, unknown conditional: 0, unknown unconditional: 797] , Statistics on independence cache: Total cache size (in pairs): 135, Positive cache size: 120, Positive conditional cache size: 0, Positive unconditional cache size: 120, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L1351] 0 int g; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; [L1373] 0 pthread_t t1; [L1374] 0 pthread_t t2; [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=1152, argc=1152, argv={1150:1151}, argv={1150:1151}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t1,((void *)0),f1,((void *)0))=-2, ptr={0:0}, t1={5:0}, t2={6:0}] [L1356] 1 g = 1 VAL [cond={4:0}, g=1, mut={3:0}, ptr={0:0}, ptr={0:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=1152, argc=1152, argv={1150:1151}, argv={1150:1151}, cond={4:0}, g=1, mut={3:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=-1, ptr={0:0}, ptr={0:0}, t1={5:0}, t2={6:0}] [L1365] CALL 2 __VERIFIER_assert(g == 0) [L19] COND TRUE 2 !(cond) [L19] 2 reach_error() VAL [\old(cond)=0, cond=0, cond={4:0}, g=1, mut={3:0}, ptr={0:0}, ptr={0:0}] - 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: -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: 1371]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1375]: 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: 1377]: 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 5 procedures, 138 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 8.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 140 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 140 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 223 IncrementalHoareTripleChecker+Invalid, 243 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 7 mSDtfsCounter, 223 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=0, InterpolantAutomatonStates: 24, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 7 MinimizatonAttempts, 16 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 140 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 [2022-11-20 11:57:03,647 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1cd82b96c01a730247618eab1464d47c03eec9013c1d245312913e94981f2bce --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 11:57:06,288 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 11:57:06,290 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 11:57:06,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 11:57:06,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 11:57:06,312 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 11:57:06,313 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 11:57:06,315 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 11:57:06,317 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 11:57:06,319 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 11:57:06,320 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 11:57:06,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 11:57:06,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 11:57:06,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 11:57:06,324 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 11:57:06,326 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 11:57:06,327 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 11:57:06,328 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 11:57:06,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 11:57:06,332 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 11:57:06,334 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 11:57:06,335 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 11:57:06,336 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 11:57:06,337 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 11:57:06,341 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 11:57:06,342 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 11:57:06,342 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 11:57:06,343 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 11:57:06,344 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 11:57:06,345 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 11:57:06,346 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 11:57:06,347 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 11:57:06,348 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 11:57:06,349 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 11:57:06,356 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 11:57:06,356 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 11:57:06,357 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 11:57:06,357 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 11:57:06,357 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 11:57:06,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 11:57:06,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 11:57:06,364 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2022-11-20 11:57:06,389 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 11:57:06,389 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 11:57:06,390 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 11:57:06,390 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 11:57:06,391 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 11:57:06,391 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 11:57:06,392 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 11:57:06,393 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 11:57:06,393 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 11:57:06,393 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 11:57:06,394 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 11:57:06,394 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 11:57:06,394 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 11:57:06,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 11:57:06,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 11:57:06,395 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-11-20 11:57:06,395 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-11-20 11:57:06,396 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-11-20 11:57:06,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 11:57:06,396 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-20 11:57:06,397 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-20 11:57:06,397 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-20 11:57:06,397 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 11:57:06,398 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 11:57:06,398 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 11:57:06,398 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 11:57:06,399 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 11:57:06,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:57:06,399 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 11:57:06,399 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 11:57:06,400 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-20 11:57:06,400 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-20 11:57:06,400 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-20 11:57:06,401 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_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1cd82b96c01a730247618eab1464d47c03eec9013c1d245312913e94981f2bce [2022-11-20 11:57:06,729 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 11:57:06,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 11:57:06,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 11:57:06,753 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 11:57:06,754 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 11:57:06,755 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-11-20 11:57:09,816 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 11:57:10,200 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 11:57:10,201 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-11-20 11:57:10,228 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/data/60b3d37c1/dcc9209ea8fe4e249eee97875aa9028c/FLAGff1316ec1 [2022-11-20 11:57:10,252 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/data/60b3d37c1/dcc9209ea8fe4e249eee97875aa9028c [2022-11-20 11:57:10,261 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 11:57:10,263 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 11:57:10,269 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 11:57:10,269 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 11:57:10,273 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 11:57:10,274 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:57:10" (1/1) ... [2022-11-20 11:57:10,275 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d9e1426 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:10, skipping insertion in model container [2022-11-20 11:57:10,276 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 11:57:10" (1/1) ... [2022-11-20 11:57:10,284 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 11:57:10,351 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 11:57:10,573 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_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i[1103,1116] [2022-11-20 11:57:11,052 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:57:11,081 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 11:57:11,124 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_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/sv-benchmarks/c/goblint-regression/13-privatized_67-pthread_cond_wait_unknown_1_pos.i[1103,1116] [2022-11-20 11:57:11,204 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 11:57:11,345 INFO L208 MainTranslator]: Completed translation [2022-11-20 11:57:11,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:11 WrapperNode [2022-11-20 11:57:11,347 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 11:57:11,348 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 11:57:11,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 11:57:11,349 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 11:57:11,358 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:11" (1/1) ... [2022-11-20 11:57:11,409 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:11" (1/1) ... [2022-11-20 11:57:11,451 INFO L138 Inliner]: procedures = 358, calls = 38, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 75 [2022-11-20 11:57:11,452 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 11:57:11,453 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 11:57:11,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 11:57:11,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 11:57:11,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:11" (1/1) ... [2022-11-20 11:57:11,465 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:11" (1/1) ... [2022-11-20 11:57:11,484 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:11" (1/1) ... [2022-11-20 11:57:11,485 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:11" (1/1) ... [2022-11-20 11:57:11,502 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:11" (1/1) ... [2022-11-20 11:57:11,516 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:11" (1/1) ... [2022-11-20 11:57:11,521 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:11" (1/1) ... [2022-11-20 11:57:11,537 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:11" (1/1) ... [2022-11-20 11:57:11,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 11:57:11,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 11:57:11,553 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 11:57:11,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 11:57:11,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:11" (1/1) ... [2022-11-20 11:57:11,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 11:57:11,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 11:57:11,603 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 11:57:11,631 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 11:57:11,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-20 11:57:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2022-11-20 11:57:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2022-11-20 11:57:11,657 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2022-11-20 11:57:11,657 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2022-11-20 11:57:11,657 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2022-11-20 11:57:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 11:57:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 11:57:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-20 11:57:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-20 11:57:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-11-20 11:57:11,658 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 11:57:11,659 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 11:57:11,659 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 11:57:11,659 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 11:57:11,661 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 11:57:12,133 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 11:57:12,136 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 11:57:12,448 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 11:57:12,455 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 11:57:12,455 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-20 11:57:12,457 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:57:12 BoogieIcfgContainer [2022-11-20 11:57:12,458 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 11:57:12,460 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 11:57:12,460 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 11:57:12,463 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 11:57:12,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 11:57:10" (1/3) ... [2022-11-20 11:57:12,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73fe27ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:57:12, skipping insertion in model container [2022-11-20 11:57:12,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 11:57:11" (2/3) ... [2022-11-20 11:57:12,465 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73fe27ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 11:57:12, skipping insertion in model container [2022-11-20 11:57:12,465 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:57:12" (3/3) ... [2022-11-20 11:57:12,466 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_67-pthread_cond_wait_unknown_1_pos.i [2022-11-20 11:57:12,501 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 11:57:12,501 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-20 11:57:12,501 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 11:57:12,608 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-11-20 11:57:12,644 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-20 11:57:12,660 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 113 places, 107 transitions, 230 flow [2022-11-20 11:57:12,663 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 113 places, 107 transitions, 230 flow [2022-11-20 11:57:12,665 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 107 transitions, 230 flow [2022-11-20 11:57:12,714 INFO L130 PetriNetUnfolder]: 1/105 cut-off events. [2022-11-20 11:57:12,715 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 11:57:12,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 105 events. 1/105 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 86 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 46. Up to 2 conditions per place. [2022-11-20 11:57:12,722 INFO L119 LiptonReduction]: Number of co-enabled transitions 1108 [2022-11-20 11:57:25,227 INFO L134 LiptonReduction]: Checked pairs total: 3088 [2022-11-20 11:57:25,227 INFO L136 LiptonReduction]: Total number of compositions: 111 [2022-11-20 11:57:25,235 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 38 places, 32 transitions, 80 flow [2022-11-20 11:57:25,265 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 226 states, 212 states have (on average 2.5660377358490565) internal successors, (544), 225 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:25,285 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 11:57:25,291 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;@25430b6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 11:57:25,291 INFO L358 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2022-11-20 11:57:25,294 INFO L276 IsEmpty]: Start isEmpty. Operand has 226 states, 212 states have (on average 2.5660377358490565) internal successors, (544), 225 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:25,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2 [2022-11-20 11:57:25,300 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:25,300 INFO L195 NwaCegarLoop]: trace histogram [1] [2022-11-20 11:57:25,301 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-20 11:57:25,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:25,306 INFO L85 PathProgramCache]: Analyzing trace with hash 390, now seen corresponding path program 1 times [2022-11-20 11:57:25,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:25,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [844581804] [2022-11-20 11:57:25,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:25,322 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 [2022-11-20 11:57:25,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:25,331 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:57:25,342 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:57:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:25,465 INFO L263 TraceCheckSpWp]: Trace formula consists of 3 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-20 11:57:25,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:25,474 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:25,474 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:57:25,475 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:25,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [844581804] [2022-11-20 11:57:25,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [844581804] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:25,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:25,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-11-20 11:57:25,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776248777] [2022-11-20 11:57:25,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:25,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-20 11:57:25,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:25,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-20 11:57:25,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:57:25,513 INFO L87 Difference]: Start difference. First operand has 226 states, 212 states have (on average 2.5660377358490565) internal successors, (544), 225 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:25,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:25,647 INFO L93 Difference]: Finished difference Result 224 states and 510 transitions. [2022-11-20 11:57:25,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-20 11:57:25,650 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1 [2022-11-20 11:57:25,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:25,669 INFO L225 Difference]: With dead ends: 224 [2022-11-20 11:57:25,669 INFO L226 Difference]: Without dead ends: 224 [2022-11-20 11:57:25,670 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 0 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-20 11:57:25,673 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:25,674 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:57:25,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-11-20 11:57:25,770 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2022-11-20 11:57:25,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 212 states have (on average 2.4056603773584904) internal successors, (510), 223 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:25,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 510 transitions. [2022-11-20 11:57:25,785 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 510 transitions. Word has length 1 [2022-11-20 11:57:25,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:25,787 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 510 transitions. [2022-11-20 11:57:25,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 1.0) internal successors, (1), 1 states have internal predecessors, (1), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:25,788 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 510 transitions. [2022-11-20 11:57:25,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 11:57:25,789 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:25,789 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-20 11:57:25,811 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:57:26,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:57:26,006 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-20 11:57:26,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:26,007 INFO L85 PathProgramCache]: Analyzing trace with hash 384771, now seen corresponding path program 1 times [2022-11-20 11:57:26,008 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:26,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2044491454] [2022-11-20 11:57:26,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:26,010 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 [2022-11-20 11:57:26,010 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:26,012 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:57:26,051 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:57:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:26,171 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2022-11-20 11:57:26,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:26,247 INFO L321 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-11-20 11:57:26,248 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 19 [2022-11-20 11:57:26,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:26,271 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:57:26,271 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:26,271 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2044491454] [2022-11-20 11:57:26,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2044491454] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:26,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:26,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 11:57:26,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1722347535] [2022-11-20 11:57:26,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:26,273 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:57:26,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:26,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:57:26,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:26,279 INFO L87 Difference]: Start difference. First operand 224 states and 510 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:26,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:26,379 INFO L93 Difference]: Finished difference Result 211 states and 486 transitions. [2022-11-20 11:57:26,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:26,380 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2022-11-20 11:57:26,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:26,382 INFO L225 Difference]: With dead ends: 211 [2022-11-20 11:57:26,382 INFO L226 Difference]: Without dead ends: 211 [2022-11-20 11:57:26,382 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 [2022-11-20 11:57:26,384 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:26,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 1 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:57:26,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-11-20 11:57:26,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2022-11-20 11:57:26,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 202 states have (on average 2.405940594059406) internal successors, (486), 210 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:26,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 486 transitions. [2022-11-20 11:57:26,414 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 486 transitions. Word has length 3 [2022-11-20 11:57:26,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:26,414 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 486 transitions. [2022-11-20 11:57:26,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:26,415 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 486 transitions. [2022-11-20 11:57:26,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2022-11-20 11:57:26,415 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:26,416 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1] [2022-11-20 11:57:26,434 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-20 11:57:26,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:57:26,628 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-20 11:57:26,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:26,629 INFO L85 PathProgramCache]: Analyzing trace with hash 384772, now seen corresponding path program 1 times [2022-11-20 11:57:26,630 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:26,630 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1383201229] [2022-11-20 11:57:26,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:26,631 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 [2022-11-20 11:57:26,631 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:26,655 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:57:26,679 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:57:26,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:26,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:57:26,815 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:26,852 INFO L321 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-11-20 11:57:26,854 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 15 [2022-11-20 11:57:26,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:26,885 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:57:26,885 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:26,885 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1383201229] [2022-11-20 11:57:26,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1383201229] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:26,886 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:26,886 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 11:57:26,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712613531] [2022-11-20 11:57:26,887 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:26,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:57:26,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:26,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:57:26,889 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:26,890 INFO L87 Difference]: Start difference. First operand 211 states and 486 transitions. Second operand has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:26,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:26,987 INFO L93 Difference]: Finished difference Result 198 states and 462 transitions. [2022-11-20 11:57:26,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:26,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 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 3 [2022-11-20 11:57:26,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:26,994 INFO L225 Difference]: With dead ends: 198 [2022-11-20 11:57:26,994 INFO L226 Difference]: Without dead ends: 198 [2022-11-20 11:57:26,994 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 [2022-11-20 11:57:26,996 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 19 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:26,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 1 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:57:26,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2022-11-20 11:57:27,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2022-11-20 11:57:27,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 192 states have (on average 2.40625) internal successors, (462), 197 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:27,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 462 transitions. [2022-11-20 11:57:27,027 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 462 transitions. Word has length 3 [2022-11-20 11:57:27,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:27,027 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 462 transitions. [2022-11-20 11:57:27,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:27,028 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 462 transitions. [2022-11-20 11:57:27,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 11:57:27,028 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:27,028 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 11:57:27,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:57:27,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:57:27,253 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-20 11:57:27,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:27,254 INFO L85 PathProgramCache]: Analyzing trace with hash 369771929, now seen corresponding path program 1 times [2022-11-20 11:57:27,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:27,255 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [144619894] [2022-11-20 11:57:27,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:27,255 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 [2022-11-20 11:57:27,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:27,258 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:57:27,299 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:57:27,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:27,492 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:57:27,493 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:27,525 INFO L321 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-11-20 11:57:27,525 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 1 case distinctions, treesize of input 9 treesize of output 11 [2022-11-20 11:57:27,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:27,680 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:57:27,680 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:27,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [144619894] [2022-11-20 11:57:27,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [144619894] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:27,681 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:27,681 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 11:57:27,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636024104] [2022-11-20 11:57:27,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:27,683 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:57:27,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:27,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:57:27,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:27,686 INFO L87 Difference]: Start difference. First operand 198 states and 462 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:27,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:27,750 INFO L93 Difference]: Finished difference Result 156 states and 349 transitions. [2022-11-20 11:57:27,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:27,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-20 11:57:27,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:27,757 INFO L225 Difference]: With dead ends: 156 [2022-11-20 11:57:27,757 INFO L226 Difference]: Without dead ends: 156 [2022-11-20 11:57:27,757 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:27,758 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 1 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 [2022-11-20 11:57:27,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 1 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:57:27,760 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2022-11-20 11:57:27,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2022-11-20 11:57:27,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 152 states have (on average 2.2960526315789473) internal successors, (349), 155 states have internal predecessors, (349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:27,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 349 transitions. [2022-11-20 11:57:27,776 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 349 transitions. Word has length 5 [2022-11-20 11:57:27,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:27,777 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 349 transitions. [2022-11-20 11:57:27,778 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:27,778 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 349 transitions. [2022-11-20 11:57:27,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-11-20 11:57:27,778 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:27,778 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-11-20 11:57:27,795 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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)] Ended with exit code 0 [2022-11-20 11:57:27,995 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:57:27,995 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-20 11:57:27,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:27,996 INFO L85 PathProgramCache]: Analyzing trace with hash 369771930, now seen corresponding path program 1 times [2022-11-20 11:57:27,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:27,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [885084609] [2022-11-20 11:57:27,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:27,998 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 [2022-11-20 11:57:27,998 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:27,999 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:57:28,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:57:28,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:28,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjunts are in the unsatisfiable core [2022-11-20 11:57:28,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:28,224 INFO L321 Elim1Store]: treesize reduction 17, result has 29.2 percent of original size [2022-11-20 11:57:28,225 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 22 [2022-11-20 11:57:28,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:28,260 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:57:28,260 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:28,260 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [885084609] [2022-11-20 11:57:28,261 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [885084609] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:28,261 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:28,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 11:57:28,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673741419] [2022-11-20 11:57:28,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:28,262 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:57:28,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:28,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:57:28,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:28,263 INFO L87 Difference]: Start difference. First operand 156 states and 349 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:28,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:28,320 INFO L93 Difference]: Finished difference Result 114 states and 236 transitions. [2022-11-20 11:57:28,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:28,321 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-11-20 11:57:28,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:28,322 INFO L225 Difference]: With dead ends: 114 [2022-11-20 11:57:28,322 INFO L226 Difference]: Without dead ends: 114 [2022-11-20 11:57:28,323 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:28,325 INFO L413 NwaCegarLoop]: 1 mSDtfsCounter, 15 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 1 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:28,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 1 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-20 11:57:28,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-11-20 11:57:28,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 114. [2022-11-20 11:57:28,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 112 states have (on average 2.107142857142857) internal successors, (236), 113 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:28,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 236 transitions. [2022-11-20 11:57:28,346 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 236 transitions. Word has length 5 [2022-11-20 11:57:28,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:28,347 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 236 transitions. [2022-11-20 11:57:28,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:28,347 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 236 transitions. [2022-11-20 11:57:28,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-20 11:57:28,348 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:28,348 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-20 11:57:28,369 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:57:28,569 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:57:28,569 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-20 11:57:28,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:28,570 INFO L85 PathProgramCache]: Analyzing trace with hash -1421971231, now seen corresponding path program 1 times [2022-11-20 11:57:28,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:28,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1420859320] [2022-11-20 11:57:28,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:28,571 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 [2022-11-20 11:57:28,571 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:28,572 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:57:28,575 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:57:28,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:28,720 INFO L263 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:57:28,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:28,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:28,740 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:57:28,741 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:28,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1420859320] [2022-11-20 11:57:28,741 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1420859320] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:28,741 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:28,741 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-20 11:57:28,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [649392032] [2022-11-20 11:57:28,742 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:28,742 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:57:28,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:28,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:57:28,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:28,743 INFO L87 Difference]: Start difference. First operand 114 states and 236 transitions. Second operand has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:28,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:28,820 INFO L93 Difference]: Finished difference Result 122 states and 244 transitions. [2022-11-20 11:57:28,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:28,821 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-11-20 11:57:28,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:28,822 INFO L225 Difference]: With dead ends: 122 [2022-11-20 11:57:28,823 INFO L226 Difference]: Without dead ends: 122 [2022-11-20 11:57:28,823 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:28,824 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 11 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 3 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:28,824 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 3 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:57:28,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-11-20 11:57:28,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 110. [2022-11-20 11:57:28,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 108 states have (on average 2.037037037037037) internal successors, (220), 109 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:28,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 220 transitions. [2022-11-20 11:57:28,829 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 220 transitions. Word has length 6 [2022-11-20 11:57:28,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:28,830 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 220 transitions. [2022-11-20 11:57:28,830 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 2 states have internal predecessors, (6), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:28,830 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 220 transitions. [2022-11-20 11:57:28,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-20 11:57:28,831 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:28,831 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:57:28,854 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:57:29,049 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:57:29,049 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-20 11:57:29,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:29,050 INFO L85 PathProgramCache]: Analyzing trace with hash -716450340, now seen corresponding path program 1 times [2022-11-20 11:57:29,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:29,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2139115112] [2022-11-20 11:57:29,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:29,051 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 [2022-11-20 11:57:29,051 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:29,053 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:57:29,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:57:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 11:57:29,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-20 11:57:29,233 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-20 11:57:29,239 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-11-20 11:57:29,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 11:57:29,253 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-20 11:57:29,253 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-20 11:57:29,253 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2139115112] [2022-11-20 11:57:29,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2139115112] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 11:57:29,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 11:57:29,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 11:57:29,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168657479] [2022-11-20 11:57:29,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 11:57:29,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 11:57:29,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-20 11:57:29,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 11:57:29,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:29,256 INFO L87 Difference]: Start difference. First operand 110 states and 220 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:29,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-20 11:57:29,358 INFO L93 Difference]: Finished difference Result 76 states and 122 transitions. [2022-11-20 11:57:29,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 11:57:29,359 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-11-20 11:57:29,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-20 11:57:29,360 INFO L225 Difference]: With dead ends: 76 [2022-11-20 11:57:29,360 INFO L226 Difference]: Without dead ends: 76 [2022-11-20 11:57:29,360 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 11:57:29,361 INFO L413 NwaCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-11-20 11:57:29,361 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-11-20 11:57:29,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2022-11-20 11:57:29,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2022-11-20 11:57:29,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 74 states have (on average 1.6486486486486487) internal successors, (122), 75 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:29,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 122 transitions. [2022-11-20 11:57:29,365 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 122 transitions. Word has length 8 [2022-11-20 11:57:29,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-20 11:57:29,365 INFO L495 AbstractCegarLoop]: Abstraction has 76 states and 122 transitions. [2022-11-20 11:57:29,365 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 11:57:29,366 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 122 transitions. [2022-11-20 11:57:29,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-20 11:57:29,367 INFO L187 NwaCegarLoop]: Found error trace [2022-11-20 11:57:29,367 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:57:29,384 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:57:29,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:57:29,579 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting f2Err0ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 10 more)] === [2022-11-20 11:57:29,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 11:57:29,579 INFO L85 PathProgramCache]: Analyzing trace with hash -735218279, now seen corresponding path program 1 times [2022-11-20 11:57:29,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-20 11:57:29,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [540646336] [2022-11-20 11:57:29,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 11:57:29,581 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 [2022-11-20 11:57:29,581 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/mathsat [2022-11-20 11:57:29,582 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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) [2022-11-20 11:57:29,589 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:57:29,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:57:29,771 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 11:57:29,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 11:57:29,878 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-20 11:57:29,878 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 11:57:29,879 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location f2Err0ASSERT_VIOLATIONMEMORY_LEAK (12 of 13 remaining) [2022-11-20 11:57:29,881 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 13 remaining) [2022-11-20 11:57:29,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 13 remaining) [2022-11-20 11:57:29,882 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 13 remaining) [2022-11-20 11:57:29,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 13 remaining) [2022-11-20 11:57:29,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 13 remaining) [2022-11-20 11:57:29,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 13 remaining) [2022-11-20 11:57:29,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 13 remaining) [2022-11-20 11:57:29,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 13 remaining) [2022-11-20 11:57:29,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (3 of 13 remaining) [2022-11-20 11:57:29,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 13 remaining) [2022-11-20 11:57:29,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 13 remaining) [2022-11-20 11:57:29,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location f2Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 13 remaining) [2022-11-20 11:57:29,914 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:57:30,091 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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 [2022-11-20 11:57:30,094 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 11:57:30,100 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-11-20 11:57:30,100 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-20 11:57:30,162 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.11 11:57:30 BasicIcfg [2022-11-20 11:57:30,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-20 11:57:30,164 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-20 11:57:30,164 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-20 11:57:30,164 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-20 11:57:30,165 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 11:57:12" (3/4) ... [2022-11-20 11:57:30,168 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-20 11:57:30,168 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-20 11:57:30,169 INFO L158 Benchmark]: Toolchain (without parser) took 19906.45ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 60.0MB in the beginning and 44.3MB in the end (delta: 15.8MB). Peak memory consumption was 35.8MB. Max. memory is 16.1GB. [2022-11-20 11:57:30,169 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 60.8MB. Free memory is still 39.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:57:30,170 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1078.07ms. Allocated memory is still 83.9MB. Free memory was 59.9MB in the beginning and 39.1MB in the end (delta: 20.8MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2022-11-20 11:57:30,170 INFO L158 Benchmark]: Boogie Procedure Inliner took 103.89ms. Allocated memory is still 83.9MB. Free memory was 39.1MB in the beginning and 36.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-20 11:57:30,171 INFO L158 Benchmark]: Boogie Preprocessor took 98.32ms. Allocated memory is still 83.9MB. Free memory was 36.2MB in the beginning and 62.3MB in the end (delta: -26.1MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-11-20 11:57:30,171 INFO L158 Benchmark]: RCFGBuilder took 905.41ms. Allocated memory is still 83.9MB. Free memory was 62.3MB in the beginning and 37.6MB in the end (delta: 24.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-20 11:57:30,172 INFO L158 Benchmark]: TraceAbstraction took 17702.99ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 36.7MB in the beginning and 44.3MB in the end (delta: -7.5MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2022-11-20 11:57:30,172 INFO L158 Benchmark]: Witness Printer took 4.76ms. Allocated memory is still 100.7MB. Free memory is still 44.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-20 11:57:30,175 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 60.8MB. Free memory is still 39.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1078.07ms. Allocated memory is still 83.9MB. Free memory was 59.9MB in the beginning and 39.1MB in the end (delta: 20.8MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 103.89ms. Allocated memory is still 83.9MB. Free memory was 39.1MB in the beginning and 36.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 98.32ms. Allocated memory is still 83.9MB. Free memory was 36.2MB in the beginning and 62.3MB in the end (delta: -26.1MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * RCFGBuilder took 905.41ms. Allocated memory is still 83.9MB. Free memory was 62.3MB in the beginning and 37.6MB in the end (delta: 24.7MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 17702.99ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 36.7MB in the beginning and 44.3MB in the end (delta: -7.5MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. * Witness Printer took 4.76ms. Allocated memory is still 100.7MB. Free memory is still 44.3MB. 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: 12.6s, 113 PlacesBefore, 38 PlacesAfterwards, 107 TransitionsBefore, 32 TransitionsAfterwards, 1108 CoEnabledTransitionPairs, 7 FixpointIterations, 64 TrivialSequentialCompositions, 43 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 111 TotalNumberOfCompositions, 3088 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1948, independent: 1816, independent conditional: 0, independent unconditional: 1816, dependent: 132, dependent conditional: 0, dependent unconditional: 132, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 843, independent: 813, independent conditional: 0, independent unconditional: 813, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 843, independent: 792, independent conditional: 0, independent unconditional: 792, dependent: 51, dependent conditional: 0, dependent unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 51, independent: 21, independent conditional: 0, independent unconditional: 21, dependent: 30, dependent conditional: 0, dependent unconditional: 30, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 171, independent: 59, independent conditional: 0, independent unconditional: 59, dependent: 112, dependent conditional: 0, dependent unconditional: 112, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1948, independent: 1003, independent conditional: 0, independent unconditional: 1003, dependent: 102, dependent conditional: 0, dependent unconditional: 102, unknown: 843, unknown conditional: 0, unknown unconditional: 843] , Statistics on independence cache: Total cache size (in pairs): 152, Positive cache size: 137, Positive conditional cache size: 0, Positive unconditional cache size: 137, Negative cache size: 15, Negative conditional cache size: 0, Negative unconditional cache size: 15, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 19]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 19. Possible FailurePath: [L1351] 0 int g; [L1352] 0 pthread_mutex_t mut = { { 0, 0, 0, PTHREAD_MUTEX_TIMED_NP, 0, { { 0, 0 } } } }; [L1353] 0 pthread_cond_t cond = { { {0}, {0}, {0, 0}, {0, 0}, 0, 0, {0, 0} } }; [L1373] 0 pthread_t t1; [L1374] 0 pthread_t t2; [L1375] FCALL, FORK 0 pthread_create(&t1,((void *)0),f1,((void *)0)) VAL [\old(argc)=200, argc=200, argv={202:201}, argv={202:201}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t1,((void *)0),f1,((void *)0))=0, ptr={0:0}, t1={15:0}, t2={7:0}] [L1377] FCALL, FORK 0 pthread_create(&t2,((void *)0),f2,((void *)0)) VAL [\old(argc)=200, argc=200, argv={202:201}, argv={202:201}, cond={4:0}, g=0, mut={3:0}, pthread_create(&t2,((void *)0),f2,((void *)0))=1, ptr={0:0}, t1={15:0}, t2={7:0}] [L1356] 1 g = 1 VAL [cond={4:0}, g=1, mut={3:0}, ptr={0:0}, ptr={0:0}] [L1365] CALL 2 __VERIFIER_assert(g == 0) [L19] COND TRUE 2 !(cond) [L19] 2 reach_error() VAL [\old(cond)=0, cond=0, cond={4:0}, g=1, mut={3:0}, ptr={0:0}, ptr={0:0}] - 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: -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: 1371]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1375]: 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: 1377]: 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 5 procedures, 139 locations, 13 error locations. Started 1 CEGAR loops. OverallTime: 17.5s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 12.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 91 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 91 mSDsluCounter, 8 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 179 IncrementalHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 7 mSDtfsCounter, 179 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=0, InterpolantAutomatonStates: 20, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 134 SizeOfPredicates, 4 NumberOfNonLiveVariables, 473 ConjunctsInSsa, 26 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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 [2022-11-20 11:57:30,208 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_9e2af191-b7f6-4d74-bda9-3930d66c7e8b/bin/uautomizer-ug76WZFUDN/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