./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece47a2e-0a2d-435b-9ecb-2f1e260bf89f/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece47a2e-0a2d-435b-9ecb-2f1e260bf89f/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece47a2e-0a2d-435b-9ecb-2f1e260bf89f/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece47a2e-0a2d-435b-9ecb-2f1e260bf89f/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece47a2e-0a2d-435b-9ecb-2f1e260bf89f/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece47a2e-0a2d-435b-9ecb-2f1e260bf89f/bin/uautomizer-ZsLfNo2U6R --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 3f188168fffbbf8c03071990a7bb806f47bcfd599d52fd9001ab6073a6b782e8 --- 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-38b53e6 [2022-11-25 17:52:02,429 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 17:52:02,431 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 17:52:02,452 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 17:52:02,453 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 17:52:02,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 17:52:02,455 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 17:52:02,458 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 17:52:02,460 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 17:52:02,461 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 17:52:02,462 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 17:52:02,463 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 17:52:02,464 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 17:52:02,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 17:52:02,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 17:52:02,468 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 17:52:02,469 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 17:52:02,470 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 17:52:02,472 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 17:52:02,474 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 17:52:02,476 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 17:52:02,491 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 17:52:02,492 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 17:52:02,494 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 17:52:02,499 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 17:52:02,508 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 17:52:02,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 17:52:02,510 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 17:52:02,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 17:52:02,511 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 17:52:02,512 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 17:52:02,513 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 17:52:02,513 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 17:52:02,514 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 17:52:02,518 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 17:52:02,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 17:52:02,519 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 17:52:02,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 17:52:02,521 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 17:52:02,523 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 17:52:02,535 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 17:52:02,536 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece47a2e-0a2d-435b-9ecb-2f1e260bf89f/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-25 17:52:02,574 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 17:52:02,575 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 17:52:02,576 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 17:52:02,576 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 17:52:02,577 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 17:52:02,577 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 17:52:02,578 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 17:52:02,578 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 17:52:02,578 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 17:52:02,579 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 17:52:02,580 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-25 17:52:02,580 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 17:52:02,580 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 17:52:02,580 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-25 17:52:02,581 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 17:52:02,581 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 17:52:02,581 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 17:52:02,581 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 17:52:02,581 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 17:52:02,582 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-25 17:52:02,582 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 17:52:02,582 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 17:52:02,582 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 17:52:02,582 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 17:52:02,583 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 17:52:02,583 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 17:52:02,583 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:52:02,583 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 17:52:02,584 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 17:52:02,584 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 17:52:02,584 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 17:52:02,585 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 17:52:02,585 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 17:52:02,585 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 17:52:02,585 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 17:52:02,586 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 17:52:02,586 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_ece47a2e-0a2d-435b-9ecb-2f1e260bf89f/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece47a2e-0a2d-435b-9ecb-2f1e260bf89f/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3f188168fffbbf8c03071990a7bb806f47bcfd599d52fd9001ab6073a6b782e8 [2022-11-25 17:52:02,963 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 17:52:02,991 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 17:52:02,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 17:52:02,995 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 17:52:02,996 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 17:52:02,997 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece47a2e-0a2d-435b-9ecb-2f1e260bf89f/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c [2022-11-25 17:52:06,088 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 17:52:06,343 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 17:52:06,343 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece47a2e-0a2d-435b-9ecb-2f1e260bf89f/sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c [2022-11-25 17:52:06,353 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece47a2e-0a2d-435b-9ecb-2f1e260bf89f/bin/uautomizer-ZsLfNo2U6R/data/e5cb45821/75e7b9cf098c459db8287da375f4afd4/FLAG11e5cc41b [2022-11-25 17:52:06,373 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece47a2e-0a2d-435b-9ecb-2f1e260bf89f/bin/uautomizer-ZsLfNo2U6R/data/e5cb45821/75e7b9cf098c459db8287da375f4afd4 [2022-11-25 17:52:06,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 17:52:06,378 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 17:52:06,382 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 17:52:06,382 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 17:52:06,386 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 17:52:06,388 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:52:06" (1/1) ... [2022-11-25 17:52:06,390 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@198cbad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:06, skipping insertion in model container [2022-11-25 17:52:06,391 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 05:52:06" (1/1) ... [2022-11-25 17:52:06,398 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 17:52:06,430 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 17:52:06,766 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_ece47a2e-0a2d-435b-9ecb-2f1e260bf89f/sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c[2728,2741] [2022-11-25 17:52:06,787 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:52:06,802 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 17:52:06,853 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_ece47a2e-0a2d-435b-9ecb-2f1e260bf89f/sv-benchmarks/c/weaver/chl-array-int-trans.wvr.c[2728,2741] [2022-11-25 17:52:06,860 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 17:52:06,880 INFO L208 MainTranslator]: Completed translation [2022-11-25 17:52:06,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:06 WrapperNode [2022-11-25 17:52:06,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 17:52:06,882 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 17:52:06,882 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 17:52:06,882 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 17:52:06,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:06" (1/1) ... [2022-11-25 17:52:06,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:06" (1/1) ... [2022-11-25 17:52:06,936 INFO L138 Inliner]: procedures = 26, calls = 49, calls flagged for inlining = 13, calls inlined = 21, statements flattened = 337 [2022-11-25 17:52:06,936 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 17:52:06,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 17:52:06,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 17:52:06,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 17:52:06,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:06" (1/1) ... [2022-11-25 17:52:06,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:06" (1/1) ... [2022-11-25 17:52:06,952 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:06" (1/1) ... [2022-11-25 17:52:06,952 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:06" (1/1) ... [2022-11-25 17:52:06,962 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:06" (1/1) ... [2022-11-25 17:52:06,967 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:06" (1/1) ... [2022-11-25 17:52:06,969 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:06" (1/1) ... [2022-11-25 17:52:06,971 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:06" (1/1) ... [2022-11-25 17:52:06,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 17:52:06,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 17:52:06,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 17:52:06,975 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 17:52:06,976 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:06" (1/1) ... [2022-11-25 17:52:06,982 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 17:52:06,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece47a2e-0a2d-435b-9ecb-2f1e260bf89f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:52:07,007 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece47a2e-0a2d-435b-9ecb-2f1e260bf89f/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 17:52:07,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece47a2e-0a2d-435b-9ecb-2f1e260bf89f/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 17:52:07,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 17:52:07,074 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 17:52:07,074 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 17:52:07,075 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 17:52:07,076 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-11-25 17:52:07,077 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-11-25 17:52:07,077 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-11-25 17:52:07,078 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-11-25 17:52:07,078 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-11-25 17:52:07,079 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-11-25 17:52:07,079 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 17:52:07,079 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-25 17:52:07,079 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 17:52:07,079 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 17:52:07,080 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 17:52:07,081 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-25 17:52:07,283 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 17:52:07,296 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 17:52:07,944 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 17:52:07,964 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 17:52:07,965 INFO L300 CfgBuilder]: Removed 6 assume(true) statements. [2022-11-25 17:52:07,968 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:52:07 BoogieIcfgContainer [2022-11-25 17:52:07,970 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 17:52:07,985 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 17:52:07,985 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 17:52:07,989 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 17:52:07,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 05:52:06" (1/3) ... [2022-11-25 17:52:07,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@350a024a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:52:07, skipping insertion in model container [2022-11-25 17:52:07,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 05:52:06" (2/3) ... [2022-11-25 17:52:07,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@350a024a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 05:52:07, skipping insertion in model container [2022-11-25 17:52:07,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 05:52:07" (3/3) ... [2022-11-25 17:52:07,992 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-array-int-trans.wvr.c [2022-11-25 17:52:08,000 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-25 17:52:08,018 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 17:52:08,019 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 36 error locations. [2022-11-25 17:52:08,019 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-25 17:52:08,237 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-11-25 17:52:08,280 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 427 places, 451 transitions, 926 flow [2022-11-25 17:52:08,569 INFO L130 PetriNetUnfolder]: 34/448 cut-off events. [2022-11-25 17:52:08,570 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-11-25 17:52:08,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 461 conditions, 448 events. 34/448 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1063 event pairs, 0 based on Foata normal form. 0/378 useless extension candidates. Maximal degree in co-relation 341. Up to 3 conditions per place. [2022-11-25 17:52:08,588 INFO L82 GeneralOperation]: Start removeDead. Operand has 427 places, 451 transitions, 926 flow [2022-11-25 17:52:08,604 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 404 places, 427 transitions, 869 flow [2022-11-25 17:52:08,608 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-25 17:52:08,631 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 404 places, 427 transitions, 869 flow [2022-11-25 17:52:08,640 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 404 places, 427 transitions, 869 flow [2022-11-25 17:52:08,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 404 places, 427 transitions, 869 flow [2022-11-25 17:52:08,767 INFO L130 PetriNetUnfolder]: 33/427 cut-off events. [2022-11-25 17:52:08,767 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-11-25 17:52:08,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 427 events. 33/427 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 965 event pairs, 0 based on Foata normal form. 0/358 useless extension candidates. Maximal degree in co-relation 341. Up to 3 conditions per place. [2022-11-25 17:52:08,792 INFO L119 LiptonReduction]: Number of co-enabled transitions 44160 [2022-11-25 17:52:32,933 INFO L134 LiptonReduction]: Checked pairs total: 57965 [2022-11-25 17:52:32,933 INFO L136 LiptonReduction]: Total number of compositions: 547 [2022-11-25 17:52:32,965 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 17:52:32,976 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;@9a7c203, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 17:52:32,976 INFO L358 AbstractCegarLoop]: Starting to check reachability of 69 error locations. [2022-11-25 17:52:32,979 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2022-11-25 17:52:32,980 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-25 17:52:32,980 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:52:32,981 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-11-25 17:52:32,982 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2022-11-25 17:52:32,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:52:32,991 INFO L85 PathProgramCache]: Analyzing trace with hash 59064, now seen corresponding path program 1 times [2022-11-25 17:52:32,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:52:33,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [821129790] [2022-11-25 17:52:33,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:52:33,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:52:33,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:33,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:52:33,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:52:33,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [821129790] [2022-11-25 17:52:33,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [821129790] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:52:33,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:52:33,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 17:52:33,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643569250] [2022-11-25 17:52:33,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:52:33,396 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:52:33,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:52:33,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:52:33,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:52:33,495 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 998 [2022-11-25 17:52:33,502 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 70 transitions, 155 flow. Second operand has 3 states, 3 states have (on average 416.6666666666667) internal successors, (1250), 3 states have internal predecessors, (1250), 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) [2022-11-25 17:52:33,503 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:52:33,503 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 998 [2022-11-25 17:52:33,504 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:52:39,401 INFO L130 PetriNetUnfolder]: 25859/35997 cut-off events. [2022-11-25 17:52:39,402 INFO L131 PetriNetUnfolder]: For 1250/1250 co-relation queries the response was YES. [2022-11-25 17:52:39,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73173 conditions, 35997 events. 25859/35997 cut-off events. For 1250/1250 co-relation queries the response was YES. Maximal size of possible extension queue 1498. Compared 213430 event pairs, 22226 based on Foata normal form. 0/14469 useless extension candidates. Maximal degree in co-relation 34416. Up to 18003 conditions per place. [2022-11-25 17:52:39,637 INFO L137 encePairwiseOnDemand]: 980/998 looper letters, 115 selfloop transitions, 6 changer transitions 0/121 dead transitions. [2022-11-25 17:52:39,637 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 121 transitions, 514 flow [2022-11-25 17:52:39,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:52:39,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:52:39,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1387 transitions. [2022-11-25 17:52:39,661 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46325985303941214 [2022-11-25 17:52:39,667 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1387 transitions. [2022-11-25 17:52:39,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1387 transitions. [2022-11-25 17:52:39,673 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:52:39,676 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1387 transitions. [2022-11-25 17:52:39,684 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 462.3333333333333) internal successors, (1387), 3 states have internal predecessors, (1387), 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) [2022-11-25 17:52:39,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 998.0) internal successors, (3992), 4 states have internal predecessors, (3992), 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) [2022-11-25 17:52:39,703 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 998.0) internal successors, (3992), 4 states have internal predecessors, (3992), 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) [2022-11-25 17:52:39,706 INFO L175 Difference]: Start difference. First operand has 72 places, 70 transitions, 155 flow. Second operand 3 states and 1387 transitions. [2022-11-25 17:52:39,707 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 121 transitions, 514 flow [2022-11-25 17:52:39,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 121 transitions, 496 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-11-25 17:52:39,745 INFO L231 Difference]: Finished difference. Result has 65 places, 69 transitions, 190 flow [2022-11-25 17:52:39,747 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=998, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=65, PETRI_TRANSITIONS=69} [2022-11-25 17:52:39,752 INFO L288 CegarLoopForPetriNet]: 72 programPoint places, -7 predicate places. [2022-11-25 17:52:39,752 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 69 transitions, 190 flow [2022-11-25 17:52:39,753 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 416.6666666666667) internal successors, (1250), 3 states have internal predecessors, (1250), 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) [2022-11-25 17:52:39,755 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:52:39,755 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-11-25 17:52:39,756 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 17:52:39,756 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2022-11-25 17:52:39,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:52:39,769 INFO L85 PathProgramCache]: Analyzing trace with hash 1833721, now seen corresponding path program 1 times [2022-11-25 17:52:39,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:52:39,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330755261] [2022-11-25 17:52:39,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:52:39,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:52:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:39,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:52:39,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:52:39,864 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330755261] [2022-11-25 17:52:39,865 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330755261] provided 0 perfect and 1 imperfect interpolant sequences [2022-11-25 17:52:39,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1499716080] [2022-11-25 17:52:39,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:52:39,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:52:39,866 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece47a2e-0a2d-435b-9ecb-2f1e260bf89f/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 17:52:39,869 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece47a2e-0a2d-435b-9ecb-2f1e260bf89f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 17:52:39,885 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece47a2e-0a2d-435b-9ecb-2f1e260bf89f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 17:52:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:40,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjunts are in the unsatisfiable core [2022-11-25 17:52:40,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 17:52:40,101 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:52:40,118 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-11-25 17:52:40,135 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:52:40,136 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1499716080] provided 0 perfect and 2 imperfect interpolant sequences [2022-11-25 17:52:40,136 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-11-25 17:52:40,136 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-11-25 17:52:40,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1377277227] [2022-11-25 17:52:40,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-11-25 17:52:40,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-11-25 17:52:40,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:52:40,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-11-25 17:52:40,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-11-25 17:52:40,260 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 998 [2022-11-25 17:52:40,263 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 69 transitions, 190 flow. Second operand has 7 states, 7 states have (on average 417.14285714285717) internal successors, (2920), 7 states have internal predecessors, (2920), 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) [2022-11-25 17:52:40,264 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:52:40,264 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 998 [2022-11-25 17:52:40,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:52:50,372 INFO L130 PetriNetUnfolder]: 64655/89991 cut-off events. [2022-11-25 17:52:50,373 INFO L131 PetriNetUnfolder]: For 725/725 co-relation queries the response was YES. [2022-11-25 17:52:50,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182074 conditions, 89991 events. 64655/89991 cut-off events. For 725/725 co-relation queries the response was YES. Maximal size of possible extension queue 3352. Compared 593593 event pairs, 55565 based on Foata normal form. 0/36186 useless extension candidates. Maximal degree in co-relation 145575. Up to 18001 conditions per place. [2022-11-25 17:52:50,859 INFO L137 encePairwiseOnDemand]: 986/998 looper letters, 268 selfloop transitions, 33 changer transitions 0/301 dead transitions. [2022-11-25 17:52:50,859 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 301 transitions, 1340 flow [2022-11-25 17:52:50,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-11-25 17:52:50,860 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-11-25 17:52:50,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 3222 transitions. [2022-11-25 17:52:50,869 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4612081305468079 [2022-11-25 17:52:50,869 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 3222 transitions. [2022-11-25 17:52:50,869 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 3222 transitions. [2022-11-25 17:52:50,871 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:52:50,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 3222 transitions. [2022-11-25 17:52:50,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 460.2857142857143) internal successors, (3222), 7 states have internal predecessors, (3222), 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) [2022-11-25 17:52:50,892 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 998.0) internal successors, (7984), 8 states have internal predecessors, (7984), 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) [2022-11-25 17:52:50,897 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 998.0) internal successors, (7984), 8 states have internal predecessors, (7984), 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) [2022-11-25 17:52:50,898 INFO L175 Difference]: Start difference. First operand has 65 places, 69 transitions, 190 flow. Second operand 7 states and 3222 transitions. [2022-11-25 17:52:50,898 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 301 transitions, 1340 flow [2022-11-25 17:52:50,901 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 301 transitions, 1316 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-11-25 17:52:50,905 INFO L231 Difference]: Finished difference. Result has 72 places, 93 transitions, 397 flow [2022-11-25 17:52:50,905 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=998, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=397, PETRI_PLACES=72, PETRI_TRANSITIONS=93} [2022-11-25 17:52:50,906 INFO L288 CegarLoopForPetriNet]: 72 programPoint places, 0 predicate places. [2022-11-25 17:52:50,906 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 93 transitions, 397 flow [2022-11-25 17:52:50,908 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 417.14285714285717) internal successors, (2920), 7 states have internal predecessors, (2920), 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) [2022-11-25 17:52:50,909 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:52:50,909 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1] [2022-11-25 17:52:50,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece47a2e-0a2d-435b-9ecb-2f1e260bf89f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 17:52:51,115 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ece47a2e-0a2d-435b-9ecb-2f1e260bf89f/bin/uautomizer-ZsLfNo2U6R/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 17:52:51,115 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2022-11-25 17:52:51,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:52:51,116 INFO L85 PathProgramCache]: Analyzing trace with hash 56848087, now seen corresponding path program 1 times [2022-11-25 17:52:51,116 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:52:51,116 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676671784] [2022-11-25 17:52:51,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:52:51,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:52:51,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:52:51,204 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-11-25 17:52:51,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:52:51,207 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676671784] [2022-11-25 17:52:51,207 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676671784] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:52:51,208 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:52:51,208 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 17:52:51,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413929011] [2022-11-25 17:52:51,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:52:51,209 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 17:52:51,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:52:51,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 17:52:51,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 17:52:51,244 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 416 out of 998 [2022-11-25 17:52:51,246 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 93 transitions, 397 flow. Second operand has 3 states, 3 states have (on average 417.3333333333333) internal successors, (1252), 3 states have internal predecessors, (1252), 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) [2022-11-25 17:52:51,247 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:52:51,247 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 416 of 998 [2022-11-25 17:52:51,247 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-25 17:53:00,320 INFO L130 PetriNetUnfolder]: 64646/89979 cut-off events. [2022-11-25 17:53:00,320 INFO L131 PetriNetUnfolder]: For 730/730 co-relation queries the response was YES. [2022-11-25 17:53:00,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182077 conditions, 89979 events. 64646/89979 cut-off events. For 730/730 co-relation queries the response was YES. Maximal size of possible extension queue 3461. Compared 597090 event pairs, 55565 based on Foata normal form. 2/36187 useless extension candidates. Maximal degree in co-relation 109218. Up to 89979 conditions per place. [2022-11-25 17:53:00,805 INFO L137 encePairwiseOnDemand]: 994/998 looper letters, 80 selfloop transitions, 1 changer transitions 0/81 dead transitions. [2022-11-25 17:53:00,806 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 81 transitions, 478 flow [2022-11-25 17:53:00,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 17:53:00,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-25 17:53:00,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1312 transitions. [2022-11-25 17:53:00,812 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43820975283901137 [2022-11-25 17:53:00,812 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1312 transitions. [2022-11-25 17:53:00,813 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1312 transitions. [2022-11-25 17:53:00,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-25 17:53:00,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1312 transitions. [2022-11-25 17:53:00,818 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 437.3333333333333) internal successors, (1312), 3 states have internal predecessors, (1312), 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) [2022-11-25 17:53:00,826 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 998.0) internal successors, (3992), 4 states have internal predecessors, (3992), 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) [2022-11-25 17:53:00,828 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 998.0) internal successors, (3992), 4 states have internal predecessors, (3992), 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) [2022-11-25 17:53:00,828 INFO L175 Difference]: Start difference. First operand has 72 places, 93 transitions, 397 flow. Second operand 3 states and 1312 transitions. [2022-11-25 17:53:00,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 81 transitions, 478 flow [2022-11-25 17:53:00,832 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 81 transitions, 448 flow, removed 9 selfloop flow, removed 1 redundant places. [2022-11-25 17:53:00,834 INFO L231 Difference]: Finished difference. Result has 69 places, 81 transitions, 288 flow [2022-11-25 17:53:00,834 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=998, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=288, PETRI_PLACES=69, PETRI_TRANSITIONS=81} [2022-11-25 17:53:00,836 INFO L288 CegarLoopForPetriNet]: 72 programPoint places, -3 predicate places. [2022-11-25 17:53:00,836 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 81 transitions, 288 flow [2022-11-25 17:53:00,837 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 417.3333333333333) internal successors, (1252), 3 states have internal predecessors, (1252), 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) [2022-11-25 17:53:00,838 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-25 17:53:00,838 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 17:53:00,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-25 17:53:00,838 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 66 more)] === [2022-11-25 17:53:00,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 17:53:00,839 INFO L85 PathProgramCache]: Analyzing trace with hash -1099367720, now seen corresponding path program 1 times [2022-11-25 17:53:00,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 17:53:00,840 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19078810] [2022-11-25 17:53:00,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 17:53:00,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 17:53:00,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 17:53:01,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 17:53:01,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 17:53:01,031 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19078810] [2022-11-25 17:53:01,031 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19078810] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 17:53:01,031 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 17:53:01,032 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 17:53:01,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110575758] [2022-11-25 17:53:01,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 17:53:01,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-25 17:53:01,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 17:53:01,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-25 17:53:01,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-11-25 17:53:01,247 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 410 out of 998 [2022-11-25 17:53:01,251 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 81 transitions, 288 flow. Second operand has 5 states, 5 states have (on average 411.2) internal successors, (2056), 5 states have internal predecessors, (2056), 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) [2022-11-25 17:53:01,251 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-25 17:53:01,251 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 410 of 998 [2022-11-25 17:53:01,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand