./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-atomic/dekker.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 57096758 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/config/GemCutterReach.xml -i ../../sv-benchmarks/c/pthread-atomic/dekker.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b09e522566a82367f1e090dbdcfe12204e8a578a ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-5709675 [2021-10-16 09:57:32,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-16 09:57:32,483 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-16 09:57:32,513 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-16 09:57:32,514 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-16 09:57:32,515 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-16 09:57:32,517 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-16 09:57:32,519 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-16 09:57:32,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-16 09:57:32,523 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-16 09:57:32,524 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-16 09:57:32,526 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-16 09:57:32,526 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-16 09:57:32,528 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-16 09:57:32,529 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-16 09:57:32,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-16 09:57:32,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-16 09:57:32,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-16 09:57:32,536 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-16 09:57:32,539 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-16 09:57:32,541 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-16 09:57:32,542 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-16 09:57:32,544 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-16 09:57:32,545 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-16 09:57:32,548 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-16 09:57:32,549 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-16 09:57:32,549 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-16 09:57:32,551 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-16 09:57:32,551 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-16 09:57:32,553 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-16 09:57:32,553 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-16 09:57:32,554 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-16 09:57:32,555 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-16 09:57:32,556 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-16 09:57:32,557 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-16 09:57:32,558 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-16 09:57:32,559 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-16 09:57:32,559 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-16 09:57:32,560 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-16 09:57:32,561 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-16 09:57:32,562 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-16 09:57:32,563 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/config/svcomp-Reach-32bit-GemCutter_Default.epf [2021-10-16 09:57:32,588 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-16 09:57:32,595 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-16 09:57:32,596 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-16 09:57:32,596 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-16 09:57:32,597 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-16 09:57:32,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-16 09:57:32,598 INFO L138 SettingsManager]: * Use SBE=true [2021-10-16 09:57:32,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-16 09:57:32,602 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-16 09:57:32,602 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-16 09:57:32,603 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-16 09:57:32,603 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-16 09:57:32,603 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-16 09:57:32,603 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-16 09:57:32,603 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-16 09:57:32,604 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-16 09:57:32,604 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-16 09:57:32,604 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-16 09:57:32,604 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-16 09:57:32,605 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-16 09:57:32,605 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-16 09:57:32,605 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-16 09:57:32,605 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-16 09:57:32,605 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 09:57:32,606 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-16 09:57:32,606 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-16 09:57:32,606 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-16 09:57:32,606 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-16 09:57:32,607 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-16 09:57:32,608 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-16 09:57:32,608 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-16 09:57:32,608 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-16 09:57:32,610 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-16 09:57:32,610 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-16 09:57:32,610 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_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b09e522566a82367f1e090dbdcfe12204e8a578a [2021-10-16 09:57:32,889 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-16 09:57:32,912 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-16 09:57:32,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-16 09:57:32,916 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-16 09:57:32,917 INFO L275 PluginConnector]: CDTParser initialized [2021-10-16 09:57:32,918 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/../../sv-benchmarks/c/pthread-atomic/dekker.i [2021-10-16 09:57:33,002 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/data/f424701e4/60746a1a0c274bd1ae481b0e3921b161/FLAG11bb69521 [2021-10-16 09:57:33,495 INFO L306 CDTParser]: Found 1 translation units. [2021-10-16 09:57:33,496 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/sv-benchmarks/c/pthread-atomic/dekker.i [2021-10-16 09:57:33,516 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/data/f424701e4/60746a1a0c274bd1ae481b0e3921b161/FLAG11bb69521 [2021-10-16 09:57:33,843 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/data/f424701e4/60746a1a0c274bd1ae481b0e3921b161 [2021-10-16 09:57:33,848 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-16 09:57:33,851 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-16 09:57:33,864 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-16 09:57:33,864 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-16 09:57:33,867 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-16 09:57:33,868 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 09:57:33" (1/1) ... [2021-10-16 09:57:33,869 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fefc655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:57:33, skipping insertion in model container [2021-10-16 09:57:33,869 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 09:57:33" (1/1) ... [2021-10-16 09:57:33,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-16 09:57:33,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-16 09:57:34,124 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-10-16 09:57:34,258 WARN L228 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_6be69f9c-bf2b-44af-a088-ba26ae90ec93/sv-benchmarks/c/pthread-atomic/dekker.i[31403,31416] [2021-10-16 09:57:34,265 WARN L228 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_6be69f9c-bf2b-44af-a088-ba26ae90ec93/sv-benchmarks/c/pthread-atomic/dekker.i[32483,32496] [2021-10-16 09:57:34,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 09:57:34,280 INFO L203 MainTranslator]: Completed pre-run [2021-10-16 09:57:34,295 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-10-16 09:57:34,318 WARN L228 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_6be69f9c-bf2b-44af-a088-ba26ae90ec93/sv-benchmarks/c/pthread-atomic/dekker.i[31403,31416] [2021-10-16 09:57:34,321 WARN L228 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_6be69f9c-bf2b-44af-a088-ba26ae90ec93/sv-benchmarks/c/pthread-atomic/dekker.i[32483,32496] [2021-10-16 09:57:34,325 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-16 09:57:34,361 INFO L208 MainTranslator]: Completed translation [2021-10-16 09:57:34,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:57:34 WrapperNode [2021-10-16 09:57:34,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-16 09:57:34,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-16 09:57:34,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-16 09:57:34,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-16 09:57:34,371 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:57:34" (1/1) ... [2021-10-16 09:57:34,385 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:57:34" (1/1) ... [2021-10-16 09:57:34,406 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-16 09:57:34,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-16 09:57:34,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-16 09:57:34,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-16 09:57:34,415 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:57:34" (1/1) ... [2021-10-16 09:57:34,415 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:57:34" (1/1) ... [2021-10-16 09:57:34,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:57:34" (1/1) ... [2021-10-16 09:57:34,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:57:34" (1/1) ... [2021-10-16 09:57:34,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:57:34" (1/1) ... [2021-10-16 09:57:34,431 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:57:34" (1/1) ... [2021-10-16 09:57:34,433 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:57:34" (1/1) ... [2021-10-16 09:57:34,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-16 09:57:34,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-16 09:57:34,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-16 09:57:34,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-16 09:57:34,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:57:34" (1/1) ... [2021-10-16 09:57:34,446 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-16 09:57:34,457 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/z3 [2021-10-16 09:57:34,472 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-16 09:57:34,502 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-16 09:57:34,522 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-16 09:57:34,523 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2021-10-16 09:57:34,524 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2021-10-16 09:57:34,524 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-10-16 09:57:34,525 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-10-16 09:57:34,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-16 09:57:34,525 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-16 09:57:34,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-16 09:57:34,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-16 09:57:34,526 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-16 09:57:34,526 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-16 09:57:34,526 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-16 09:57:34,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-16 09:57:34,528 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-16 09:57:34,901 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-16 09:57:34,901 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-10-16 09:57:34,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 09:57:34 BoogieIcfgContainer [2021-10-16 09:57:34,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-16 09:57:34,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-16 09:57:34,907 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-16 09:57:34,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-16 09:57:34,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 09:57:33" (1/3) ... [2021-10-16 09:57:34,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50169ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 09:57:34, skipping insertion in model container [2021-10-16 09:57:34,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 09:57:34" (2/3) ... [2021-10-16 09:57:34,913 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@50169ea9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 09:57:34, skipping insertion in model container [2021-10-16 09:57:34,913 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 09:57:34" (3/3) ... [2021-10-16 09:57:34,920 INFO L111 eAbstractionObserver]: Analyzing ICFG dekker.i [2021-10-16 09:57:34,926 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-16 09:57:34,926 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-16 09:57:34,926 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-10-16 09:57:34,926 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-16 09:57:34,973 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,974 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,974 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,974 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,974 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,975 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,975 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,975 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,975 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,975 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,976 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,976 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,976 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,976 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,977 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,977 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,977 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,977 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,978 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,978 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,978 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,979 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,979 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,979 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,979 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,979 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,980 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,980 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,980 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,980 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,981 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,981 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,981 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,981 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,982 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,982 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,983 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,983 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,983 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,983 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,983 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,983 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,984 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,984 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,984 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,985 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,985 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,985 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,985 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,985 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,986 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,986 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,986 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,987 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,987 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,987 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,987 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,988 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,988 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,988 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,988 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,989 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,989 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,989 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,989 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,990 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,990 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,990 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,994 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,994 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,994 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,994 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~f2~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,995 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,995 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:34,999 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~f1~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:35,000 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:35,000 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:35,000 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~t~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:35,000 WARN L313 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:35,000 WARN L313 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-16 09:57:35,009 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-16 09:57:35,057 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-16 09:57:35,057 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/z3 [2021-10-16 09:57:35,059 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-16 09:57:35,070 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-10-16 09:57:35,102 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr1Thread1of1ForFork0 ======== [2021-10-16 09:57:35,107 INFO L339 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=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 09:57:35,107 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 09:57:35,238 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 09:57:35,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 09:57:35,243 INFO L82 PathProgramCache]: Analyzing trace with hash -765239703, now seen corresponding path program 1 times [2021-10-16 09:57:35,253 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 09:57:35,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506677351] [2021-10-16 09:57:35,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 09:57:35,254 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 09:57:35,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 09:57:35,508 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 09:57:35,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 09:57:35,509 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506677351] [2021-10-16 09:57:35,511 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506677351] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 09:57:35,513 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 09:57:35,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 09:57:35,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856229916] [2021-10-16 09:57:35,518 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 09:57:35,518 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 09:57:35,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 09:57:35,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 09:57:35,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:35,535 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 09:57:35,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 15.5) internal successors, (31), 2 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 09:57:35,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:35,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:35,546 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-16 09:57:35,546 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 09:57:35,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 09:57:35,547 INFO L82 PathProgramCache]: Analyzing trace with hash -899122516, now seen corresponding path program 1 times [2021-10-16 09:57:35,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 09:57:35,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695611040] [2021-10-16 09:57:35,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 09:57:35,548 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 09:57:35,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 09:57:35,692 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 09:57:35,692 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 09:57:35,692 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695611040] [2021-10-16 09:57:35,693 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695611040] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 09:57:35,693 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 09:57:35,693 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 09:57:35,693 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291843313] [2021-10-16 09:57:35,695 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 09:57:35,695 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 09:57:35,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 09:57:35,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 09:57:35,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:35,696 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 09:57:35,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 09:57:35,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:35,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:35,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:35,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:35,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-16 09:57:35,816 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 09:57:35,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 09:57:35,817 INFO L82 PathProgramCache]: Analyzing trace with hash 1939969854, now seen corresponding path program 1 times [2021-10-16 09:57:35,817 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 09:57:35,817 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020092419] [2021-10-16 09:57:35,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 09:57:35,818 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 09:57:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 09:57:35,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 09:57:35,963 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 09:57:35,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020092419] [2021-10-16 09:57:35,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020092419] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 09:57:35,964 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 09:57:35,964 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 09:57:35,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [761430952] [2021-10-16 09:57:35,965 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 09:57:35,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 09:57:35,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 09:57:35,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 09:57:35,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:35,967 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 09:57:35,967 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 09:57:35,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:35,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:35,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:36,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:36,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:36,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 09:57:36,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-16 09:57:36,167 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 09:57:36,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 09:57:36,168 INFO L82 PathProgramCache]: Analyzing trace with hash -848248578, now seen corresponding path program 1 times [2021-10-16 09:57:36,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 09:57:36,168 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469964361] [2021-10-16 09:57:36,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 09:57:36,169 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 09:57:36,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 09:57:36,242 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-16 09:57:36,243 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 09:57:36,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469964361] [2021-10-16 09:57:36,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1469964361] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 09:57:36,243 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 09:57:36,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 09:57:36,244 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921287531] [2021-10-16 09:57:36,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 09:57:36,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 09:57:36,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 09:57:36,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 09:57:36,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:36,246 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 09:57:36,246 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 09:57:36,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:36,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:36,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-16 09:57:36,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:36,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:36,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:36,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:36,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:36,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-16 09:57:36,347 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 09:57:36,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 09:57:36,348 INFO L82 PathProgramCache]: Analyzing trace with hash -1165487600, now seen corresponding path program 1 times [2021-10-16 09:57:36,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 09:57:36,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146830187] [2021-10-16 09:57:36,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 09:57:36,349 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 09:57:36,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 09:57:36,419 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-16 09:57:36,420 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 09:57:36,420 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146830187] [2021-10-16 09:57:36,420 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1146830187] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 09:57:36,420 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 09:57:36,421 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 09:57:36,421 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515313780] [2021-10-16 09:57:36,422 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 09:57:36,422 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 09:57:36,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 09:57:36,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 09:57:36,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:36,423 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 09:57:36,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 09:57:36,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:36,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:36,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:36,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:36,425 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:36,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:36,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:36,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:36,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:36,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-16 09:57:36,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-16 09:57:36,561 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 09:57:36,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 09:57:36,562 INFO L82 PathProgramCache]: Analyzing trace with hash 914607038, now seen corresponding path program 2 times [2021-10-16 09:57:36,562 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 09:57:36,562 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022414958] [2021-10-16 09:57:36,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 09:57:36,562 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 09:57:36,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 09:57:36,658 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 09:57:36,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 09:57:36,660 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022414958] [2021-10-16 09:57:36,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022414958] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 09:57:36,660 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 09:57:36,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 09:57:36,661 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410740771] [2021-10-16 09:57:36,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 09:57:36,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 09:57:36,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 09:57:36,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 09:57:36,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:36,695 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 09:57:36,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 09:57:36,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:36,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:36,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:36,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:36,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-16 09:57:36,696 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:36,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:36,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:36,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:36,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:36,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:36,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:36,891 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 09:57:36,892 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-16 09:57:36,908 INFO L308 ceAbstractionStarter]: Result for error location thr1Thread1of1ForFork0 was SAFE (1/3) [2021-10-16 09:57:36,912 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-16 09:57:36,912 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/z3 [2021-10-16 09:57:36,915 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-16 09:57:36,924 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-16 09:57:36,925 INFO L339 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=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 09:57:36,925 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-16 09:57:36,954 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2021-10-16 09:57:36,983 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-16 09:57:36,983 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-16 09:57:36,985 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was SAFE,SAFE (2/3) [2021-10-16 09:57:36,987 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-16 09:57:36,987 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/z3 [2021-10-16 09:57:37,011 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-16 09:57:37,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2021-10-16 09:57:37,017 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thr2Thread1of1ForFork1 ======== [2021-10-16 09:57:37,017 INFO L339 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=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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, mLoopAccelerationTechnique=FAST_UPR [2021-10-16 09:57:37,017 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-10-16 09:57:37,082 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 09:57:37,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 09:57:37,082 INFO L82 PathProgramCache]: Analyzing trace with hash -2088384671, now seen corresponding path program 1 times [2021-10-16 09:57:37,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 09:57:37,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198067944] [2021-10-16 09:57:37,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 09:57:37,084 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 09:57:37,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 09:57:37,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 09:57:37,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 09:57:37,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198067944] [2021-10-16 09:57:37,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198067944] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 09:57:37,130 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 09:57:37,131 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-16 09:57:37,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17315274] [2021-10-16 09:57:37,131 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-10-16 09:57:37,131 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 09:57:37,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-16 09:57:37,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-16 09:57:37,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,132 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 09:57:37,133 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 09:57:37,133 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,136 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-16 09:57:37,137 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 09:57:37,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 09:57:37,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1849545797, now seen corresponding path program 1 times [2021-10-16 09:57:37,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 09:57:37,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425903622] [2021-10-16 09:57:37,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 09:57:37,138 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 09:57:37,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 09:57:37,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 09:57:37,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 09:57:37,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425903622] [2021-10-16 09:57:37,200 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425903622] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 09:57:37,200 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 09:57:37,200 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 09:57:37,200 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666872444] [2021-10-16 09:57:37,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 09:57:37,201 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 09:57:37,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 09:57:37,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 09:57:37,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,204 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 09:57:37,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 09:57:37,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:37,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-16 09:57:37,231 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 09:57:37,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 09:57:37,231 INFO L82 PathProgramCache]: Analyzing trace with hash 2029224915, now seen corresponding path program 1 times [2021-10-16 09:57:37,232 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 09:57:37,232 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237469565] [2021-10-16 09:57:37,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 09:57:37,233 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 09:57:37,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 09:57:37,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 09:57:37,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 09:57:37,295 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237469565] [2021-10-16 09:57:37,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237469565] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 09:57:37,295 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 09:57:37,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-16 09:57:37,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569274853] [2021-10-16 09:57:37,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-16 09:57:37,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 09:57:37,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-16 09:57:37,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-16 09:57:37,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,297 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 09:57:37,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.333333333333334) internal successors, (46), 3 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 09:57:37,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:37,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:37,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:37,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-16 09:57:37,412 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 09:57:37,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 09:57:37,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1477460404, now seen corresponding path program 1 times [2021-10-16 09:57:37,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 09:57:37,413 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539986989] [2021-10-16 09:57:37,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 09:57:37,414 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 09:57:37,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 09:57:37,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 09:57:37,465 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 09:57:37,465 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539986989] [2021-10-16 09:57:37,465 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539986989] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 09:57:37,465 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 09:57:37,465 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 09:57:37,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506703344] [2021-10-16 09:57:37,466 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 09:57:37,466 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 09:57:37,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 09:57:37,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 09:57:37,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,467 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 09:57:37,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 09:57:37,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:37,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:37,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:37,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:37,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:37,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-10-16 09:57:37,535 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 09:57:37,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 09:57:37,535 INFO L82 PathProgramCache]: Analyzing trace with hash -518525538, now seen corresponding path program 1 times [2021-10-16 09:57:37,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 09:57:37,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831524207] [2021-10-16 09:57:37,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 09:57:37,536 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 09:57:37,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 09:57:37,613 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-10-16 09:57:37,613 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 09:57:37,613 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831524207] [2021-10-16 09:57:37,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [831524207] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 09:57:37,614 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 09:57:37,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 09:57:37,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241668162] [2021-10-16 09:57:37,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 09:57:37,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 09:57:37,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 09:57:37,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 09:57:37,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,620 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 09:57:37,620 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.25) internal successors, (61), 4 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 09:57:37,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:37,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:37,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:37,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:37,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:37,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:37,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:37,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-10-16 09:57:37,672 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 09:57:37,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 09:57:37,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1651591488, now seen corresponding path program 2 times [2021-10-16 09:57:37,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 09:57:37,673 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351096699] [2021-10-16 09:57:37,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 09:57:37,673 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 09:57:37,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 09:57:37,734 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-16 09:57:37,735 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 09:57:37,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351096699] [2021-10-16 09:57:37,735 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351096699] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 09:57:37,735 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 09:57:37,735 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-16 09:57:37,736 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149925293] [2021-10-16 09:57:37,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-16 09:57:37,736 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 09:57:37,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-16 09:57:37,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-16 09:57:37,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,737 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 09:57:37,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.0) internal successors, (60), 5 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 09:57:37,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:37,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:37,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:37,738 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:37,739 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:37,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:37,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:37,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:37,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 09:57:37,885 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-10-16 09:57:37,885 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 09:57:37,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 09:57:37,886 INFO L82 PathProgramCache]: Analyzing trace with hash -19019170, now seen corresponding path program 1 times [2021-10-16 09:57:37,886 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 09:57:37,886 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830660345] [2021-10-16 09:57:37,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 09:57:37,887 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 09:57:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 09:57:37,943 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 09:57:37,943 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 09:57:37,943 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830660345] [2021-10-16 09:57:37,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830660345] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 09:57:37,943 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 09:57:37,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 09:57:37,944 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530067556] [2021-10-16 09:57:37,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 09:57:37,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 09:57:37,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 09:57:37,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 09:57:37,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,945 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 09:57:37,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 09:57:37,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:37,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:37,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:37,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:37,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 09:57:37,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:37,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:37,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:37,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:37,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:37,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 09:57:37,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:37,984 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-10-16 09:57:37,985 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr2Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-16 09:57:37,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-16 09:57:37,985 INFO L82 PathProgramCache]: Analyzing trace with hash 1726743668, now seen corresponding path program 2 times [2021-10-16 09:57:37,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-16 09:57:37,986 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420157666] [2021-10-16 09:57:37,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-16 09:57:37,986 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-16 09:57:38,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-16 09:57:38,033 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-16 09:57:38,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-16 09:57:38,033 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420157666] [2021-10-16 09:57:38,033 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420157666] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-16 09:57:38,034 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-16 09:57:38,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-16 09:57:38,034 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538115263] [2021-10-16 09:57:38,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-16 09:57:38,035 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-16 09:57:38,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-16 09:57:38,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-16 09:57:38,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:38,036 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-16 09:57:38,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.0) internal successors, (44), 4 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-16 09:57:38,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:38,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:38,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:38,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:38,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:38,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-16 09:57:38,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:38,037 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:38,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-16 09:57:38,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:38,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-16 09:57:38,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:38,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:38,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-16 09:57:38,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:38,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-16 09:57:38,161 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-16 09:57:38,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-10-16 09:57:38,164 INFO L308 ceAbstractionStarter]: Result for error location thr2Thread1of1ForFork1 was SAFE (3/3) [2021-10-16 09:57:38,164 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-16 09:57:38,164 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-16 09:57:38,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 09:57:38 BasicIcfg [2021-10-16 09:57:38,168 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-16 09:57:38,169 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-16 09:57:38,169 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-16 09:57:38,169 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-16 09:57:38,170 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 09:57:34" (3/4) ... [2021-10-16 09:57:38,172 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-16 09:57:38,179 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr2 [2021-10-16 09:57:38,179 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2021-10-16 09:57:38,184 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2021-10-16 09:57:38,185 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-16 09:57:38,185 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 09:57:38,185 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-16 09:57:38,219 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/witness.graphml [2021-10-16 09:57:38,219 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-16 09:57:38,221 INFO L168 Benchmark]: Toolchain (without parser) took 4369.07 ms. Allocated memory was 125.8 MB in the beginning and 159.4 MB in the end (delta: 33.6 MB). Free memory was 86.5 MB in the beginning and 115.7 MB in the end (delta: -29.2 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2021-10-16 09:57:38,221 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 125.8 MB. Free memory is still 104.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 09:57:38,222 INFO L168 Benchmark]: CACSL2BoogieTranslator took 497.97 ms. Allocated memory is still 125.8 MB. Free memory was 86.2 MB in the beginning and 93.0 MB in the end (delta: -6.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-16 09:57:38,222 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.45 ms. Allocated memory is still 125.8 MB. Free memory was 93.0 MB in the beginning and 91.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 09:57:38,223 INFO L168 Benchmark]: Boogie Preprocessor took 29.43 ms. Allocated memory is still 125.8 MB. Free memory was 91.1 MB in the beginning and 89.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 09:57:38,223 INFO L168 Benchmark]: RCFGBuilder took 467.67 ms. Allocated memory is still 125.8 MB. Free memory was 89.4 MB in the beginning and 76.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2021-10-16 09:57:38,224 INFO L168 Benchmark]: TraceAbstraction took 3262.08 ms. Allocated memory was 125.8 MB in the beginning and 159.4 MB in the end (delta: 33.6 MB). Free memory was 76.4 MB in the beginning and 117.8 MB in the end (delta: -41.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-16 09:57:38,224 INFO L168 Benchmark]: Witness Printer took 50.33 ms. Allocated memory is still 159.4 MB. Free memory was 117.8 MB in the beginning and 115.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-16 09:57:38,226 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 125.8 MB. Free memory is still 104.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 497.97 ms. Allocated memory is still 125.8 MB. Free memory was 86.2 MB in the beginning and 93.0 MB in the end (delta: -6.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.45 ms. Allocated memory is still 125.8 MB. Free memory was 93.0 MB in the beginning and 91.1 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.43 ms. Allocated memory is still 125.8 MB. Free memory was 91.1 MB in the beginning and 89.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 467.67 ms. Allocated memory is still 125.8 MB. Free memory was 89.4 MB in the beginning and 76.8 MB in the end (delta: 12.6 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3262.08 ms. Allocated memory was 125.8 MB in the beginning and 159.4 MB in the end (delta: 33.6 MB). Free memory was 76.4 MB in the beginning and 117.8 MB in the end (delta: -41.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 50.33 ms. Allocated memory is still 159.4 MB. Free memory was 117.8 MB in the beginning and 115.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 8429, positive: 7435, positive conditional: 5113, positive unconditional: 2322, negative: 994, negative conditional: 952, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7625, positive: 7435, positive conditional: 5113, positive unconditional: 2322, negative: 190, negative conditional: 148, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7625, positive: 7435, positive conditional: 5113, positive unconditional: 2322, negative: 190, negative conditional: 148, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8103, positive: 7435, positive conditional: 5086, positive unconditional: 2349, negative: 668, negative conditional: 478, negative unconditional: 190, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8103, positive: 7435, positive conditional: 1342, positive unconditional: 6093, negative: 668, negative conditional: 107, negative unconditional: 561, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8103, positive: 7435, positive conditional: 1342, positive unconditional: 6093, negative: 668, negative conditional: 107, negative unconditional: 561, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1940, positive: 1886, positive conditional: 4, positive unconditional: 1882, negative: 54, negative conditional: 12, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1940, positive: 1883, positive conditional: 0, positive unconditional: 1883, negative: 57, negative conditional: 0, negative unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 57, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 54, negative conditional: 12, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 165, positive: 5, positive conditional: 2, positive unconditional: 4, negative: 160, negative conditional: 24, negative unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8103, positive: 5549, positive conditional: 1338, positive unconditional: 4211, negative: 614, negative conditional: 95, negative unconditional: 519, unknown: 1940, unknown conditional: 16, unknown unconditional: 1924] , Statistics on independence cache: Total cache size (in pairs): 1940, Positive cache size: 1886, Positive conditional cache size: 4, Positive unconditional cache size: 1882, Negative cache size: 54, Negative conditional cache size: 12, Negative unconditional cache size: 42, Eliminated conditions: 4115, Maximal queried relation: 5, Independence queries for same thread: 804 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 306, Number of persistent set computation: 504, Number of trivial persistent sets: 402, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2364, positive: 2322, positive conditional: 0, positive unconditional: 2322, negative: 42, negative conditional: 0, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 8429, positive: 7435, positive conditional: 5113, positive unconditional: 2322, negative: 994, negative conditional: 952, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7625, positive: 7435, positive conditional: 5113, positive unconditional: 2322, negative: 190, negative conditional: 148, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 7625, positive: 7435, positive conditional: 5113, positive unconditional: 2322, negative: 190, negative conditional: 148, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8103, positive: 7435, positive conditional: 5086, positive unconditional: 2349, negative: 668, negative conditional: 478, negative unconditional: 190, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8103, positive: 7435, positive conditional: 1342, positive unconditional: 6093, negative: 668, negative conditional: 107, negative unconditional: 561, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8103, positive: 7435, positive conditional: 1342, positive unconditional: 6093, negative: 668, negative conditional: 107, negative unconditional: 561, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1940, positive: 1886, positive conditional: 4, positive unconditional: 1882, negative: 54, negative conditional: 12, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1940, positive: 1883, positive conditional: 0, positive unconditional: 1883, negative: 57, negative conditional: 0, negative unconditional: 57, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 57, positive: 3, positive conditional: 1, positive unconditional: 2, negative: 54, negative conditional: 12, negative unconditional: 42, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 165, positive: 5, positive conditional: 2, positive unconditional: 4, negative: 160, negative conditional: 24, negative unconditional: 136, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8103, positive: 5549, positive conditional: 1338, positive unconditional: 4211, negative: 614, negative conditional: 95, negative unconditional: 519, unknown: 1940, unknown conditional: 16, unknown unconditional: 1924] , Statistics on independence cache: Total cache size (in pairs): 1940, Positive cache size: 1886, Positive conditional cache size: 4, Positive unconditional cache size: 1882, Negative cache size: 54, Negative conditional cache size: 12, Negative unconditional cache size: 42, Eliminated conditions: 4115, Maximal queried relation: 5, Independence queries for same thread: 804 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 422, positive: 420, positive conditional: 5, positive unconditional: 415, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 421, positive: 420, positive conditional: 5, positive unconditional: 415, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 421, positive: 420, positive conditional: 5, positive unconditional: 415, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 421, positive: 420, positive conditional: 0, positive unconditional: 420, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 421, positive: 420, positive conditional: 0, positive unconditional: 420, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 421, positive: 420, positive conditional: 0, positive unconditional: 420, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 416, positive: 415, positive conditional: 0, positive unconditional: 415, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 416, positive: 415, positive conditional: 0, positive unconditional: 415, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 44, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 421, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 416, unknown conditional: 0, unknown unconditional: 416] , Statistics on independence cache: Total cache size (in pairs): 416, Positive cache size: 415, Positive conditional cache size: 0, Positive unconditional cache size: 415, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 1 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 52, Number of persistent set computation: 30, Number of trivial persistent sets: 24, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 416, positive: 415, positive conditional: 0, positive unconditional: 415, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 422, positive: 420, positive conditional: 5, positive unconditional: 415, negative: 2, negative conditional: 1, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 421, positive: 420, positive conditional: 5, positive unconditional: 415, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 421, positive: 420, positive conditional: 5, positive unconditional: 415, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 421, positive: 420, positive conditional: 0, positive unconditional: 420, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 421, positive: 420, positive conditional: 0, positive unconditional: 420, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 421, positive: 420, positive conditional: 0, positive unconditional: 420, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 416, positive: 415, positive conditional: 0, positive unconditional: 415, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 416, positive: 415, positive conditional: 0, positive unconditional: 415, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 1, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 44, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 44, negative conditional: 0, negative unconditional: 44, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 421, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 416, unknown conditional: 0, unknown unconditional: 416] , Statistics on independence cache: Total cache size (in pairs): 416, Positive cache size: 415, Positive conditional cache size: 0, Positive unconditional cache size: 415, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Eliminated conditions: 0, Maximal queried relation: 0, Independence queries for same thread: 1 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 8920, positive: 7843, positive conditional: 5385, positive unconditional: 2458, negative: 1077, negative conditional: 1031, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8064, positive: 7843, positive conditional: 5385, positive unconditional: 2458, negative: 221, negative conditional: 175, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8064, positive: 7843, positive conditional: 5385, positive unconditional: 2458, negative: 221, negative conditional: 175, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8590, positive: 7843, positive conditional: 5333, positive unconditional: 2510, negative: 747, negative conditional: 526, negative unconditional: 221, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8590, positive: 7843, positive conditional: 1965, positive unconditional: 5878, negative: 747, negative conditional: 137, negative unconditional: 610, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8590, positive: 7843, positive conditional: 1965, positive unconditional: 5878, negative: 747, negative conditional: 137, negative unconditional: 610, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2025, positive: 1961, positive conditional: 2, positive unconditional: 1959, negative: 64, negative conditional: 18, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2025, positive: 1955, positive conditional: 0, positive unconditional: 1955, negative: 70, negative conditional: 0, negative unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 70, positive: 6, positive conditional: 2, positive unconditional: 4, negative: 64, negative conditional: 18, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 166, positive: 26, positive conditional: 22, positive unconditional: 4, negative: 141, negative conditional: 41, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8590, positive: 5882, positive conditional: 1963, positive unconditional: 3919, negative: 683, negative conditional: 119, negative unconditional: 564, unknown: 2025, unknown conditional: 20, unknown unconditional: 2005] , Statistics on independence cache: Total cache size (in pairs): 2025, Positive cache size: 1961, Positive conditional cache size: 2, Positive unconditional cache size: 1959, Negative cache size: 64, Negative conditional cache size: 18, Negative unconditional cache size: 46, Eliminated conditions: 3757, Maximal queried relation: 5, Independence queries for same thread: 856 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 165, Number of persistent set computation: 628, Number of trivial persistent sets: 442, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2504, positive: 2458, positive conditional: 0, positive unconditional: 2458, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 8920, positive: 7843, positive conditional: 5385, positive unconditional: 2458, negative: 1077, negative conditional: 1031, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8064, positive: 7843, positive conditional: 5385, positive unconditional: 2458, negative: 221, negative conditional: 175, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 8064, positive: 7843, positive conditional: 5385, positive unconditional: 2458, negative: 221, negative conditional: 175, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8590, positive: 7843, positive conditional: 5333, positive unconditional: 2510, negative: 747, negative conditional: 526, negative unconditional: 221, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8590, positive: 7843, positive conditional: 1965, positive unconditional: 5878, negative: 747, negative conditional: 137, negative unconditional: 610, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8590, positive: 7843, positive conditional: 1965, positive unconditional: 5878, negative: 747, negative conditional: 137, negative unconditional: 610, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2025, positive: 1961, positive conditional: 2, positive unconditional: 1959, negative: 64, negative conditional: 18, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2025, positive: 1955, positive conditional: 0, positive unconditional: 1955, negative: 70, negative conditional: 0, negative unconditional: 70, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 70, positive: 6, positive conditional: 2, positive unconditional: 4, negative: 64, negative conditional: 18, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 166, positive: 26, positive conditional: 22, positive unconditional: 4, negative: 141, negative conditional: 41, negative unconditional: 99, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 8590, positive: 5882, positive conditional: 1963, positive unconditional: 3919, negative: 683, negative conditional: 119, negative unconditional: 564, unknown: 2025, unknown conditional: 20, unknown unconditional: 2005] , Statistics on independence cache: Total cache size (in pairs): 2025, Positive cache size: 1961, Positive conditional cache size: 2, Positive unconditional cache size: 1959, Negative cache size: 64, Negative conditional cache size: 18, Negative unconditional cache size: 46, Eliminated conditions: 3757, Maximal queried relation: 5, Independence queries for same thread: 856 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 739]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 780]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr1Thread1of1ForFork0 with 1 thread instances CFG has 5 procedures, 132 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1853.9ms, OverallIterations: 6, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 18.9ms, PartialOrderReductionTime: 865.3ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 33.2ms SsaConstructionTime, 140.3ms SatisfiabilityAnalysisTime, 489.1ms InterpolantComputationTime, 277 NumberOfCodeBlocks, 277 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 271 ConstructedInterpolants, 0 QuantifiedInterpolants, 409 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 21/21 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 - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 132 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 73.4ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2.6ms, PartialOrderReductionTime: 54.9ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thr2Thread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 132 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 1177.0ms, OverallIterations: 8, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 2.6ms, PartialOrderReductionTime: 628.6ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 34, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 21.2ms SsaConstructionTime, 87.1ms SatisfiabilityAnalysisTime, 307.8ms InterpolantComputationTime, 401 NumberOfCodeBlocks, 401 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 393 ConstructedInterpolants, 0 QuantifiedInterpolants, 546 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 14/14 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-16 09:57:38,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Forceful destruction successful, exit code 0 [2021-10-16 09:57:38,490 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Ended with exit code 0 [2021-10-16 09:57:38,686 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2021-10-16 09:57:38,890 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6be69f9c-bf2b-44af-a088-ba26ae90ec93/bin/ugemcutter-iXBUUPsApB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...