./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-ext/26_stack_cas_longer-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaef4e0-80c9-4398-b248-3e5406b02b58/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaef4e0-80c9-4398-b248-3e5406b02b58/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaef4e0-80c9-4398-b248-3e5406b02b58/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaef4e0-80c9-4398-b248-3e5406b02b58/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/26_stack_cas_longer-1.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaef4e0-80c9-4398-b248-3e5406b02b58/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaef4e0-80c9-4398-b248-3e5406b02b58/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e12b29ddb474fc17e74c2b71eb245022640b1de10fdbbb130c7f22e13cd3653f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:30:31,361 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:30:31,363 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:30:31,390 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:30:31,391 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:30:31,392 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:30:31,393 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:30:31,395 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:30:31,397 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:30:31,398 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:30:31,399 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:30:31,400 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:30:31,400 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:30:31,401 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:30:31,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:30:31,403 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:30:31,404 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:30:31,405 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:30:31,406 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:30:31,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:30:31,409 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:30:31,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:30:31,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:30:31,416 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:30:31,420 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:30:31,422 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:30:31,425 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:30:31,426 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:30:31,427 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:30:31,428 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:30:31,430 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:30:31,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:30:31,432 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:30:31,433 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:30:31,435 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:30:31,436 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:30:31,436 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:30:31,436 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:30:31,437 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:30:31,437 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:30:31,439 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:30:31,440 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaef4e0-80c9-4398-b248-3e5406b02b58/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 10:30:31,474 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:30:31,482 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:30:31,483 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:30:31,483 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:30:31,484 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:30:31,484 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:30:31,484 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:30:31,485 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:30:31,485 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:30:31,485 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:30:31,486 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:30:31,486 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:30:31,487 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:30:31,487 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:30:31,487 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:30:31,487 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:30:31,487 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:30:31,488 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:30:31,488 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 10:30:31,488 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:30:31,488 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:30:31,488 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:30:31,489 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:30:31,489 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:30:31,489 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:30:31,489 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:30:31,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:30:31,490 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:30:31,490 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:30:31,490 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:30:31,490 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:30:31,491 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:30:31,491 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:30:31,491 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:30:31,491 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:30:31,492 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_baaef4e0-80c9-4398-b248-3e5406b02b58/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaef4e0-80c9-4398-b248-3e5406b02b58/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e12b29ddb474fc17e74c2b71eb245022640b1de10fdbbb130c7f22e13cd3653f [2022-11-20 10:30:31,764 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:30:31,785 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:30:31,788 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:30:31,790 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:30:31,790 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:30:31,792 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaef4e0-80c9-4398-b248-3e5406b02b58/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-ext/26_stack_cas_longer-1.i [2022-11-20 10:30:34,861 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:30:35,150 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:30:35,163 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaef4e0-80c9-4398-b248-3e5406b02b58/sv-benchmarks/c/pthread-ext/26_stack_cas_longer-1.i [2022-11-20 10:30:35,188 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaef4e0-80c9-4398-b248-3e5406b02b58/bin/uautomizer-ug76WZFUDN/data/b297ffbba/6c7598a39127434482e7c3cf27f8e94c/FLAG4b7df6939 [2022-11-20 10:30:35,212 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaef4e0-80c9-4398-b248-3e5406b02b58/bin/uautomizer-ug76WZFUDN/data/b297ffbba/6c7598a39127434482e7c3cf27f8e94c [2022-11-20 10:30:35,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:30:35,216 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:30:35,217 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:30:35,217 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:30:35,226 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:30:35,226 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:30:35" (1/1) ... [2022-11-20 10:30:35,228 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ae0a1eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:35, skipping insertion in model container [2022-11-20 10:30:35,228 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:30:35" (1/1) ... [2022-11-20 10:30:35,236 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:30:35,286 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:30:35,692 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaef4e0-80c9-4398-b248-3e5406b02b58/sv-benchmarks/c/pthread-ext/26_stack_cas_longer-1.i[31166,31179] [2022-11-20 10:30:35,708 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:30:35,723 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:30:35,787 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaef4e0-80c9-4398-b248-3e5406b02b58/sv-benchmarks/c/pthread-ext/26_stack_cas_longer-1.i[31166,31179] [2022-11-20 10:30:35,798 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:30:35,843 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:30:35,844 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:35 WrapperNode [2022-11-20 10:30:35,844 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:30:35,845 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:30:35,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:30:35,846 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:30:35,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:35" (1/1) ... [2022-11-20 10:30:35,877 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:35" (1/1) ... [2022-11-20 10:30:35,913 INFO L138 Inliner]: procedures = 177, calls = 47, calls flagged for inlining = 16, calls inlined = 19, statements flattened = 197 [2022-11-20 10:30:35,914 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:30:35,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:30:35,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:30:35,915 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:30:35,924 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:35" (1/1) ... [2022-11-20 10:30:35,925 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:35" (1/1) ... [2022-11-20 10:30:35,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:35" (1/1) ... [2022-11-20 10:30:35,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:35" (1/1) ... [2022-11-20 10:30:35,953 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:35" (1/1) ... [2022-11-20 10:30:35,973 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:35" (1/1) ... [2022-11-20 10:30:35,975 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:35" (1/1) ... [2022-11-20 10:30:35,976 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:35" (1/1) ... [2022-11-20 10:30:35,979 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:30:35,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:30:35,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:30:35,981 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:30:35,982 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:35" (1/1) ... [2022-11-20 10:30:35,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:30:36,003 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaef4e0-80c9-4398-b248-3e5406b02b58/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:30:36,014 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaef4e0-80c9-4398-b248-3e5406b02b58/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:30:36,018 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_baaef4e0-80c9-4398-b248-3e5406b02b58/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:30:36,072 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:30:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-11-20 10:30:36,073 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-11-20 10:30:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:30:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:30:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:30:36,073 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:30:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:30:36,074 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:30:36,074 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:30:36,075 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 10:30:36,288 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:30:36,291 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:30:36,708 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:30:36,865 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:30:36,866 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-11-20 10:30:36,868 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:30:36 BoogieIcfgContainer [2022-11-20 10:30:36,868 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:30:36,870 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:30:36,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:30:36,874 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:30:36,874 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:30:35" (1/3) ... [2022-11-20 10:30:36,875 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b519ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:30:36, skipping insertion in model container [2022-11-20 10:30:36,875 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:30:35" (2/3) ... [2022-11-20 10:30:36,876 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20b519ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:30:36, skipping insertion in model container [2022-11-20 10:30:36,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:30:36" (3/3) ... [2022-11-20 10:30:36,877 INFO L112 eAbstractionObserver]: Analyzing ICFG 26_stack_cas_longer-1.i [2022-11-20 10:30:36,887 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 10:30:36,895 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:30:36,895 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2022-11-20 10:30:36,895 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:30:36,965 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 10:30:37,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 136 places, 143 transitions, 291 flow [2022-11-20 10:30:37,072 INFO L130 PetriNetUnfolder]: 11/154 cut-off events. [2022-11-20 10:30:37,075 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:30:37,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 154 events. 11/154 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 162 event pairs, 0 based on Foata normal form. 0/131 useless extension candidates. Maximal degree in co-relation 116. Up to 4 conditions per place. [2022-11-20 10:30:37,082 INFO L82 GeneralOperation]: Start removeDead. Operand has 136 places, 143 transitions, 291 flow [2022-11-20 10:30:37,087 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 136 places, 143 transitions, 291 flow [2022-11-20 10:30:37,098 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:30:37,106 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5f5ae656, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:30:37,106 INFO L358 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2022-11-20 10:30:37,123 INFO L130 PetriNetUnfolder]: 3/63 cut-off events. [2022-11-20 10:30:37,123 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:30:37,123 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:30:37,124 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:37,125 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2022-11-20 10:30:37,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:37,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1118181292, now seen corresponding path program 1 times [2022-11-20 10:30:37,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:37,141 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590323670] [2022-11-20 10:30:37,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:37,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:37,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:30:37,270 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:30:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:30:37,334 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:30:37,336 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 10:30:37,337 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2022-11-20 10:30:37,339 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2022-11-20 10:30:37,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2022-11-20 10:30:37,340 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2022-11-20 10:30:37,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2022-11-20 10:30:37,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2022-11-20 10:30:37,341 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2022-11-20 10:30:37,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2022-11-20 10:30:37,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2022-11-20 10:30:37,342 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2022-11-20 10:30:37,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2022-11-20 10:30:37,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2022-11-20 10:30:37,343 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2022-11-20 10:30:37,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2022-11-20 10:30:37,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2022-11-20 10:30:37,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2022-11-20 10:30:37,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2022-11-20 10:30:37,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2022-11-20 10:30:37,345 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2022-11-20 10:30:37,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2022-11-20 10:30:37,346 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2022-11-20 10:30:37,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:30:37,347 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 10:30:37,351 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 10:30:37,352 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-20 10:30:37,487 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 10:30:37,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 233 places, 247 transitions, 506 flow [2022-11-20 10:30:37,571 INFO L130 PetriNetUnfolder]: 21/271 cut-off events. [2022-11-20 10:30:37,571 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 10:30:37,580 INFO L83 FinitePrefix]: Finished finitePrefix Result has 281 conditions, 271 events. 21/271 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 588 event pairs, 0 based on Foata normal form. 0/227 useless extension candidates. Maximal degree in co-relation 219. Up to 6 conditions per place. [2022-11-20 10:30:37,581 INFO L82 GeneralOperation]: Start removeDead. Operand has 233 places, 247 transitions, 506 flow [2022-11-20 10:30:37,589 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 233 places, 247 transitions, 506 flow [2022-11-20 10:30:37,593 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:30:37,596 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5f5ae656, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:30:37,598 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2022-11-20 10:30:37,618 INFO L130 PetriNetUnfolder]: 7/103 cut-off events. [2022-11-20 10:30:37,618 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-20 10:30:37,618 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:30:37,618 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:37,619 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2022-11-20 10:30:37,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:37,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1600202081, now seen corresponding path program 1 times [2022-11-20 10:30:37,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:37,620 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922813931] [2022-11-20 10:30:37,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:37,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:37,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:30:37,652 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:30:37,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:30:37,681 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:30:37,681 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 10:30:37,681 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2022-11-20 10:30:37,681 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 31 remaining) [2022-11-20 10:30:37,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 31 remaining) [2022-11-20 10:30:37,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 31 remaining) [2022-11-20 10:30:37,682 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 31 remaining) [2022-11-20 10:30:37,683 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 31 remaining) [2022-11-20 10:30:37,683 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 31 remaining) [2022-11-20 10:30:37,683 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 31 remaining) [2022-11-20 10:30:37,683 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 31 remaining) [2022-11-20 10:30:37,684 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 31 remaining) [2022-11-20 10:30:37,684 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 31 remaining) [2022-11-20 10:30:37,684 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 31 remaining) [2022-11-20 10:30:37,684 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 31 remaining) [2022-11-20 10:30:37,685 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 31 remaining) [2022-11-20 10:30:37,685 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 31 remaining) [2022-11-20 10:30:37,685 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 31 remaining) [2022-11-20 10:30:37,685 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 31 remaining) [2022-11-20 10:30:37,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 31 remaining) [2022-11-20 10:30:37,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 31 remaining) [2022-11-20 10:30:37,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 31 remaining) [2022-11-20 10:30:37,686 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 31 remaining) [2022-11-20 10:30:37,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 31 remaining) [2022-11-20 10:30:37,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 31 remaining) [2022-11-20 10:30:37,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 31 remaining) [2022-11-20 10:30:37,687 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 31 remaining) [2022-11-20 10:30:37,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 31 remaining) [2022-11-20 10:30:37,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 31 remaining) [2022-11-20 10:30:37,688 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 31 remaining) [2022-11-20 10:30:37,689 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 31 remaining) [2022-11-20 10:30:37,689 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 31 remaining) [2022-11-20 10:30:37,689 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 31 remaining) [2022-11-20 10:30:37,689 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:30:37,689 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 10:30:37,690 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 10:30:37,690 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-11-20 10:30:37,779 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 10:30:37,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 330 places, 351 transitions, 723 flow [2022-11-20 10:30:37,921 INFO L130 PetriNetUnfolder]: 31/388 cut-off events. [2022-11-20 10:30:37,922 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-20 10:30:37,929 INFO L83 FinitePrefix]: Finished finitePrefix Result has 404 conditions, 388 events. 31/388 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 1180 event pairs, 0 based on Foata normal form. 0/323 useless extension candidates. Maximal degree in co-relation 322. Up to 8 conditions per place. [2022-11-20 10:30:37,929 INFO L82 GeneralOperation]: Start removeDead. Operand has 330 places, 351 transitions, 723 flow [2022-11-20 10:30:37,936 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 330 places, 351 transitions, 723 flow [2022-11-20 10:30:37,939 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:30:37,943 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5f5ae656, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:30:37,943 INFO L358 AbstractCegarLoop]: Starting to check reachability of 41 error locations. [2022-11-20 10:30:37,978 INFO L130 PetriNetUnfolder]: 11/150 cut-off events. [2022-11-20 10:30:37,978 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-11-20 10:30:37,978 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:30:37,979 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:37,979 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 38 more)] === [2022-11-20 10:30:37,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:37,980 INFO L85 PathProgramCache]: Analyzing trace with hash -660149983, now seen corresponding path program 1 times [2022-11-20 10:30:37,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:37,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2101020708] [2022-11-20 10:30:37,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:37,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:38,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:30:38,051 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:30:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:30:38,108 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:30:38,109 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 10:30:38,109 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (40 of 41 remaining) [2022-11-20 10:30:38,109 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 41 remaining) [2022-11-20 10:30:38,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 41 remaining) [2022-11-20 10:30:38,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 41 remaining) [2022-11-20 10:30:38,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 41 remaining) [2022-11-20 10:30:38,110 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 41 remaining) [2022-11-20 10:30:38,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 41 remaining) [2022-11-20 10:30:38,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 41 remaining) [2022-11-20 10:30:38,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 41 remaining) [2022-11-20 10:30:38,111 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 41 remaining) [2022-11-20 10:30:38,112 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 41 remaining) [2022-11-20 10:30:38,112 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 41 remaining) [2022-11-20 10:30:38,112 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 41 remaining) [2022-11-20 10:30:38,112 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 41 remaining) [2022-11-20 10:30:38,113 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 41 remaining) [2022-11-20 10:30:38,113 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 41 remaining) [2022-11-20 10:30:38,113 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 41 remaining) [2022-11-20 10:30:38,113 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 41 remaining) [2022-11-20 10:30:38,114 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 41 remaining) [2022-11-20 10:30:38,114 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 41 remaining) [2022-11-20 10:30:38,114 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 41 remaining) [2022-11-20 10:30:38,114 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 41 remaining) [2022-11-20 10:30:38,115 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 41 remaining) [2022-11-20 10:30:38,115 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 41 remaining) [2022-11-20 10:30:38,115 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 41 remaining) [2022-11-20 10:30:38,115 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 41 remaining) [2022-11-20 10:30:38,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 41 remaining) [2022-11-20 10:30:38,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 41 remaining) [2022-11-20 10:30:38,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 41 remaining) [2022-11-20 10:30:38,116 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 41 remaining) [2022-11-20 10:30:38,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 41 remaining) [2022-11-20 10:30:38,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 41 remaining) [2022-11-20 10:30:38,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 41 remaining) [2022-11-20 10:30:38,117 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 41 remaining) [2022-11-20 10:30:38,118 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 41 remaining) [2022-11-20 10:30:38,118 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 41 remaining) [2022-11-20 10:30:38,118 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 41 remaining) [2022-11-20 10:30:38,118 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 41 remaining) [2022-11-20 10:30:38,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 41 remaining) [2022-11-20 10:30:38,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 41 remaining) [2022-11-20 10:30:38,119 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 41 remaining) [2022-11-20 10:30:38,119 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:30:38,119 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 10:30:38,120 WARN L233 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 10:30:38,120 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-11-20 10:30:38,226 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 10:30:38,230 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 427 places, 455 transitions, 942 flow [2022-11-20 10:30:38,464 INFO L130 PetriNetUnfolder]: 41/505 cut-off events. [2022-11-20 10:30:38,464 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-20 10:30:38,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 528 conditions, 505 events. 41/505 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1825 event pairs, 0 based on Foata normal form. 0/419 useless extension candidates. Maximal degree in co-relation 425. Up to 10 conditions per place. [2022-11-20 10:30:38,472 INFO L82 GeneralOperation]: Start removeDead. Operand has 427 places, 455 transitions, 942 flow [2022-11-20 10:30:38,482 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 427 places, 455 transitions, 942 flow [2022-11-20 10:30:38,483 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:30:38,489 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5f5ae656, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:30:38,489 INFO L358 AbstractCegarLoop]: Starting to check reachability of 51 error locations. [2022-11-20 10:30:38,521 INFO L130 PetriNetUnfolder]: 15/204 cut-off events. [2022-11-20 10:30:38,521 INFO L131 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-11-20 10:30:38,521 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:30:38,522 INFO L209 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:38,522 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 48 more)] === [2022-11-20 10:30:38,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:38,522 INFO L85 PathProgramCache]: Analyzing trace with hash -292911060, now seen corresponding path program 1 times [2022-11-20 10:30:38,523 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:38,523 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424786890] [2022-11-20 10:30:38,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:38,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:38,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:30:38,586 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:30:38,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:30:38,639 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:30:38,641 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 10:30:38,642 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (50 of 51 remaining) [2022-11-20 10:30:38,643 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 51 remaining) [2022-11-20 10:30:38,646 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 51 remaining) [2022-11-20 10:30:38,647 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 51 remaining) [2022-11-20 10:30:38,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 51 remaining) [2022-11-20 10:30:38,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 51 remaining) [2022-11-20 10:30:38,648 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 51 remaining) [2022-11-20 10:30:38,649 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 51 remaining) [2022-11-20 10:30:38,650 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 51 remaining) [2022-11-20 10:30:38,653 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 51 remaining) [2022-11-20 10:30:38,654 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 51 remaining) [2022-11-20 10:30:38,655 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 51 remaining) [2022-11-20 10:30:38,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 51 remaining) [2022-11-20 10:30:38,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 51 remaining) [2022-11-20 10:30:38,661 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 51 remaining) [2022-11-20 10:30:38,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 51 remaining) [2022-11-20 10:30:38,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 51 remaining) [2022-11-20 10:30:38,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 51 remaining) [2022-11-20 10:30:38,662 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 51 remaining) [2022-11-20 10:30:38,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 51 remaining) [2022-11-20 10:30:38,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 51 remaining) [2022-11-20 10:30:38,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 51 remaining) [2022-11-20 10:30:38,663 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 51 remaining) [2022-11-20 10:30:38,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 51 remaining) [2022-11-20 10:30:38,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 51 remaining) [2022-11-20 10:30:38,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 51 remaining) [2022-11-20 10:30:38,664 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 51 remaining) [2022-11-20 10:30:38,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 51 remaining) [2022-11-20 10:30:38,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 51 remaining) [2022-11-20 10:30:38,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 51 remaining) [2022-11-20 10:30:38,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 51 remaining) [2022-11-20 10:30:38,665 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 51 remaining) [2022-11-20 10:30:38,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 51 remaining) [2022-11-20 10:30:38,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 51 remaining) [2022-11-20 10:30:38,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 51 remaining) [2022-11-20 10:30:38,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 51 remaining) [2022-11-20 10:30:38,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 51 remaining) [2022-11-20 10:30:38,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 51 remaining) [2022-11-20 10:30:38,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 51 remaining) [2022-11-20 10:30:38,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 51 remaining) [2022-11-20 10:30:38,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 51 remaining) [2022-11-20 10:30:38,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 51 remaining) [2022-11-20 10:30:38,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 51 remaining) [2022-11-20 10:30:38,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 51 remaining) [2022-11-20 10:30:38,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 51 remaining) [2022-11-20 10:30:38,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 51 remaining) [2022-11-20 10:30:38,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 51 remaining) [2022-11-20 10:30:38,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 51 remaining) [2022-11-20 10:30:38,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 51 remaining) [2022-11-20 10:30:38,669 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 51 remaining) [2022-11-20 10:30:38,670 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 51 remaining) [2022-11-20 10:30:38,670 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:30:38,670 INFO L444 BasicCegarLoop]: Path program histogram: [1] [2022-11-20 10:30:38,671 WARN L233 ceAbstractionStarter]: 4 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 10:30:38,671 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 5 thread instances. [2022-11-20 10:30:38,813 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-11-20 10:30:38,818 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 524 places, 559 transitions, 1163 flow [2022-11-20 10:30:39,129 INFO L130 PetriNetUnfolder]: 51/622 cut-off events. [2022-11-20 10:30:39,130 INFO L131 PetriNetUnfolder]: For 30/30 co-relation queries the response was YES. [2022-11-20 10:30:39,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 653 conditions, 622 events. 51/622 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 2518 event pairs, 0 based on Foata normal form. 0/515 useless extension candidates. Maximal degree in co-relation 528. Up to 12 conditions per place. [2022-11-20 10:30:39,142 INFO L82 GeneralOperation]: Start removeDead. Operand has 524 places, 559 transitions, 1163 flow [2022-11-20 10:30:39,156 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 524 places, 559 transitions, 1163 flow [2022-11-20 10:30:39,157 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:30:39,158 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5f5ae656, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:30:39,159 INFO L358 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2022-11-20 10:30:39,197 INFO L130 PetriNetUnfolder]: 15/205 cut-off events. [2022-11-20 10:30:39,197 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-11-20 10:30:39,197 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:30:39,197 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:30:39,198 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thr1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thr1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2022-11-20 10:30:39,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:30:39,198 INFO L85 PathProgramCache]: Analyzing trace with hash -1266052618, now seen corresponding path program 1 times [2022-11-20 10:30:39,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:30:39,198 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60347226] [2022-11-20 10:30:39,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:30:39,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:30:39,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:30:39,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:30:39,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:30:39,485 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60347226] [2022-11-20 10:30:39,486 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60347226] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:30:39,486 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:30:39,486 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-20 10:30:39,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63047390] [2022-11-20 10:30:39,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:30:39,498 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:30:39,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:30:39,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:30:39,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:30:39,550 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 559 [2022-11-20 10:30:39,557 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 524 places, 559 transitions, 1163 flow. Second operand has 3 states, 3 states have (on average 418.0) internal successors, (1254), 3 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:30:39,557 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:30:39,557 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 559 [2022-11-20 10:30:39,558 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand