./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/unroll-cond-5.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/unroll-cond-5.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8 --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 b2b2bb654bf56c4e17e833d277e8505998c0901a0fe529242a0e0db923034741 --- 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-2329fc7 [2022-12-13 18:03:28,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:03:28,381 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:03:28,400 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:03:28,400 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:03:28,401 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:03:28,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:03:28,404 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:03:28,406 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:03:28,406 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:03:28,407 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:03:28,409 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:03:28,409 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:03:28,410 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:03:28,411 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:03:28,412 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:03:28,413 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:03:28,414 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:03:28,415 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:03:28,417 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:03:28,418 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:03:28,420 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:03:28,421 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:03:28,422 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:03:28,425 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:03:28,425 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:03:28,425 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:03:28,426 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:03:28,427 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:03:28,428 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:03:28,428 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:03:28,429 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:03:28,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:03:28,430 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:03:28,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:03:28,431 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:03:28,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:03:28,432 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:03:28,432 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:03:28,433 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:03:28,434 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:03:28,434 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 18:03:28,456 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:03:28,456 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:03:28,456 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:03:28,457 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:03:28,457 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:03:28,458 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:03:28,458 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:03:28,458 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:03:28,459 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:03:28,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:03:28,459 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 18:03:28,459 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 18:03:28,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:03:28,460 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 18:03:28,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:03:28,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:03:28,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:03:28,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:03:28,460 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 18:03:28,461 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 18:03:28,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:03:28,461 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:03:28,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:03:28,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:03:28,461 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:03:28,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:03:28,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:03:28,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:03:28,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:03:28,462 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:03:28,463 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:03:28,463 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:03:28,463 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:03:28,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:03:28,463 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:03:28,463 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:03:28,464 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:03:28,464 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_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b2b2bb654bf56c4e17e833d277e8505998c0901a0fe529242a0e0db923034741 [2022-12-13 18:03:28,638 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:03:28,655 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:03:28,657 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:03:28,657 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:03:28,658 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:03:28,658 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/weaver/unroll-cond-5.wvr.c [2022-12-13 18:03:31,240 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:03:31,403 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:03:31,404 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/sv-benchmarks/c/weaver/unroll-cond-5.wvr.c [2022-12-13 18:03:31,409 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/data/a659bfc82/cc1011aee1cd4753af74ddaa2ce4d52f/FLAG4d5d80916 [2022-12-13 18:03:31,836 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/data/a659bfc82/cc1011aee1cd4753af74ddaa2ce4d52f [2022-12-13 18:03:31,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:03:31,843 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:03:31,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:03:31,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:03:31,848 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:03:31,849 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:03:31" (1/1) ... [2022-12-13 18:03:31,850 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33c36eb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:03:31, skipping insertion in model container [2022-12-13 18:03:31,850 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:03:31" (1/1) ... [2022-12-13 18:03:31,857 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:03:31,870 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:03:31,985 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_60de635f-b77e-4cbb-a953-5c65809e1634/sv-benchmarks/c/weaver/unroll-cond-5.wvr.c[2975,2988] [2022-12-13 18:03:31,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:03:31,997 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:03:32,015 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_60de635f-b77e-4cbb-a953-5c65809e1634/sv-benchmarks/c/weaver/unroll-cond-5.wvr.c[2975,2988] [2022-12-13 18:03:32,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:03:32,026 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:03:32,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:03:32 WrapperNode [2022-12-13 18:03:32,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:03:32,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:03:32,027 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:03:32,027 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:03:32,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:03:32" (1/1) ... [2022-12-13 18:03:32,038 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:03:32" (1/1) ... [2022-12-13 18:03:32,055 INFO L138 Inliner]: procedures = 24, calls = 45, calls flagged for inlining = 17, calls inlined = 17, statements flattened = 206 [2022-12-13 18:03:32,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:03:32,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:03:32,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:03:32,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:03:32,063 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:03:32" (1/1) ... [2022-12-13 18:03:32,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:03:32" (1/1) ... [2022-12-13 18:03:32,065 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:03:32" (1/1) ... [2022-12-13 18:03:32,065 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:03:32" (1/1) ... [2022-12-13 18:03:32,070 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:03:32" (1/1) ... [2022-12-13 18:03:32,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:03:32" (1/1) ... [2022-12-13 18:03:32,074 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:03:32" (1/1) ... [2022-12-13 18:03:32,075 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:03:32" (1/1) ... [2022-12-13 18:03:32,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:03:32,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:03:32,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:03:32,078 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:03:32,078 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:03:32" (1/1) ... [2022-12-13 18:03:32,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:03:32,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:03:32,102 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:03:32,104 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:03:32,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:03:32,135 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-12-13 18:03:32,135 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-12-13 18:03:32,135 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-12-13 18:03:32,135 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-12-13 18:03:32,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:03:32,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 18:03:32,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 18:03:32,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-12-13 18:03:32,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:03:32,136 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:03:32,136 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 18:03:32,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 18:03:32,137 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 18:03:32,219 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:03:32,221 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:03:32,507 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:03:32,518 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:03:32,518 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-12-13 18:03:32,520 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:03:32 BoogieIcfgContainer [2022-12-13 18:03:32,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:03:32,523 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:03:32,524 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:03:32,527 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:03:32,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:03:31" (1/3) ... [2022-12-13 18:03:32,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a631f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:03:32, skipping insertion in model container [2022-12-13 18:03:32,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:03:32" (2/3) ... [2022-12-13 18:03:32,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a631f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:03:32, skipping insertion in model container [2022-12-13 18:03:32,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:03:32" (3/3) ... [2022-12-13 18:03:32,530 INFO L112 eAbstractionObserver]: Analyzing ICFG unroll-cond-5.wvr.c [2022-12-13 18:03:32,538 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 18:03:32,548 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:03:32,548 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 18:03:32,549 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 18:03:32,647 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-12-13 18:03:32,700 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 255 places, 272 transitions, 560 flow [2022-12-13 18:03:32,767 INFO L130 PetriNetUnfolder]: 24/270 cut-off events. [2022-12-13 18:03:32,767 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 18:03:32,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 279 conditions, 270 events. 24/270 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 517 event pairs, 0 based on Foata normal form. 0/244 useless extension candidates. Maximal degree in co-relation 171. Up to 2 conditions per place. [2022-12-13 18:03:32,773 INFO L82 GeneralOperation]: Start removeDead. Operand has 255 places, 272 transitions, 560 flow [2022-12-13 18:03:32,776 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 68 transitions, 136 flow [2022-12-13 18:03:32,779 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 18:03:32,787 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 68 transitions, 136 flow [2022-12-13 18:03:32,789 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 68 transitions, 136 flow [2022-12-13 18:03:32,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 65 places, 68 transitions, 136 flow [2022-12-13 18:03:32,798 INFO L130 PetriNetUnfolder]: 4/68 cut-off events. [2022-12-13 18:03:32,799 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 18:03:32,799 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 68 events. 4/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 9 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-12-13 18:03:32,799 INFO L119 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 18:03:35,780 INFO L134 LiptonReduction]: Checked pairs total: 0 [2022-12-13 18:03:35,781 INFO L136 LiptonReduction]: Total number of compositions: 85 [2022-12-13 18:03:35,793 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:03:35,799 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;@6fa41a7d, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:03:35,799 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-12-13 18:03:35,801 INFO L130 PetriNetUnfolder]: 1/2 cut-off events. [2022-12-13 18:03:35,801 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 18:03:35,801 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:03:35,801 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 18:03:35,802 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 18:03:35,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:03:35,806 INFO L85 PathProgramCache]: Analyzing trace with hash 29473, now seen corresponding path program 1 times [2022-12-13 18:03:35,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:03:35,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106729467] [2022-12-13 18:03:35,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:03:35,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:03:35,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:35,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:03:35,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:03:35,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106729467] [2022-12-13 18:03:35,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106729467] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:03:35,987 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 18:03:35,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 18:03:35,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1449243538] [2022-12-13 18:03:35,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:03:35,996 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 18:03:35,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:03:36,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 18:03:36,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 18:03:36,029 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 357 [2022-12-13 18:03:36,032 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 4 places, 4 transitions, 8 flow. Second operand has 3 states, 3 states have (on average 247.66666666666666) internal successors, (743), 3 states have internal predecessors, (743), 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) [2022-12-13 18:03:36,032 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:03:36,032 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 357 [2022-12-13 18:03:36,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:03:36,047 INFO L130 PetriNetUnfolder]: 1/5 cut-off events. [2022-12-13 18:03:36,047 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 18:03:36,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12 conditions, 5 events. 1/5 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 0/3 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2022-12-13 18:03:36,048 INFO L137 encePairwiseOnDemand]: 353/357 looper letters, 3 selfloop transitions, 2 changer transitions 0/5 dead transitions. [2022-12-13 18:03:36,048 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 6 places, 5 transitions, 20 flow [2022-12-13 18:03:36,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 18:03:36,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 18:03:36,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 748 transitions. [2022-12-13 18:03:36,060 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6984126984126984 [2022-12-13 18:03:36,060 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 748 transitions. [2022-12-13 18:03:36,061 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 748 transitions. [2022-12-13 18:03:36,062 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:03:36,064 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 748 transitions. [2022-12-13 18:03:36,067 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 249.33333333333334) internal successors, (748), 3 states have internal predecessors, (748), 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) [2022-12-13 18:03:36,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 357.0) internal successors, (1428), 4 states have internal predecessors, (1428), 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) [2022-12-13 18:03:36,073 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 357.0) internal successors, (1428), 4 states have internal predecessors, (1428), 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) [2022-12-13 18:03:36,075 INFO L175 Difference]: Start difference. First operand has 4 places, 4 transitions, 8 flow. Second operand 3 states and 748 transitions. [2022-12-13 18:03:36,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 6 places, 5 transitions, 20 flow [2022-12-13 18:03:36,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 6 places, 5 transitions, 20 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 18:03:36,077 INFO L231 Difference]: Finished difference. Result has 7 places, 5 transitions, 22 flow [2022-12-13 18:03:36,078 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=8, PETRI_DIFFERENCE_MINUEND_PLACES=4, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=4, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=2, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=22, PETRI_PLACES=7, PETRI_TRANSITIONS=5} [2022-12-13 18:03:36,081 INFO L288 CegarLoopForPetriNet]: 4 programPoint places, 3 predicate places. [2022-12-13 18:03:36,081 INFO L495 AbstractCegarLoop]: Abstraction has has 7 places, 5 transitions, 22 flow [2022-12-13 18:03:36,082 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 247.66666666666666) internal successors, (743), 3 states have internal predecessors, (743), 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) [2022-12-13 18:03:36,082 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:03:36,082 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2022-12-13 18:03:36,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 18:03:36,083 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 18:03:36,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:03:36,084 INFO L85 PathProgramCache]: Analyzing trace with hash 915112, now seen corresponding path program 1 times [2022-12-13 18:03:36,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:03:36,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479003792] [2022-12-13 18:03:36,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:03:36,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:03:36,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:36,153 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:03:36,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:03:36,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479003792] [2022-12-13 18:03:36,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479003792] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:03:36,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1467599845] [2022-12-13 18:03:36,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:03:36,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:03:36,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:03:36,155 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:03:36,157 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 18:03:36,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:36,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 4 conjunts are in the unsatisfiable core [2022-12-13 18:03:36,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:03:36,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:03:36,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:03:36,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:03:36,247 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1467599845] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:03:36,247 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:03:36,247 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 5 [2022-12-13 18:03:36,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355027474] [2022-12-13 18:03:36,248 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:03:36,248 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 18:03:36,248 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:03:36,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 18:03:36,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-12-13 18:03:36,277 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 357 [2022-12-13 18:03:36,279 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 7 places, 5 transitions, 22 flow. Second operand has 7 states, 7 states have (on average 248.14285714285714) internal successors, (1737), 7 states have internal predecessors, (1737), 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) [2022-12-13 18:03:36,279 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:03:36,279 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 357 [2022-12-13 18:03:36,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:03:36,304 INFO L130 PetriNetUnfolder]: 4/11 cut-off events. [2022-12-13 18:03:36,304 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 18:03:36,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 38 conditions, 11 events. 4/11 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 6 event pairs, 0 based on Foata normal form. 0/6 useless extension candidates. Maximal degree in co-relation 27. Up to 11 conditions per place. [2022-12-13 18:03:36,304 INFO L137 encePairwiseOnDemand]: 353/357 looper letters, 2 selfloop transitions, 9 changer transitions 0/11 dead transitions. [2022-12-13 18:03:36,305 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 11 transitions, 68 flow [2022-12-13 18:03:36,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 18:03:36,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 18:03:36,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1743 transitions. [2022-12-13 18:03:36,308 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6974789915966386 [2022-12-13 18:03:36,308 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1743 transitions. [2022-12-13 18:03:36,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1743 transitions. [2022-12-13 18:03:36,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:03:36,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1743 transitions. [2022-12-13 18:03:36,312 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 249.0) internal successors, (1743), 7 states have internal predecessors, (1743), 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) [2022-12-13 18:03:36,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 357.0) internal successors, (2856), 8 states have internal predecessors, (2856), 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) [2022-12-13 18:03:36,316 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 357.0) internal successors, (2856), 8 states have internal predecessors, (2856), 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) [2022-12-13 18:03:36,316 INFO L175 Difference]: Start difference. First operand has 7 places, 5 transitions, 22 flow. Second operand 7 states and 1743 transitions. [2022-12-13 18:03:36,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 11 transitions, 68 flow [2022-12-13 18:03:36,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 11 transitions, 64 flow, removed 1 selfloop flow, removed 1 redundant places. [2022-12-13 18:03:36,318 INFO L231 Difference]: Finished difference. Result has 15 places, 11 transitions, 77 flow [2022-12-13 18:03:36,318 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=18, PETRI_DIFFERENCE_MINUEND_PLACES=6, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=5, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=77, PETRI_PLACES=15, PETRI_TRANSITIONS=11} [2022-12-13 18:03:36,318 INFO L288 CegarLoopForPetriNet]: 4 programPoint places, 11 predicate places. [2022-12-13 18:03:36,319 INFO L495 AbstractCegarLoop]: Abstraction has has 15 places, 11 transitions, 77 flow [2022-12-13 18:03:36,319 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 248.14285714285714) internal successors, (1737), 7 states have internal predecessors, (1737), 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) [2022-12-13 18:03:36,319 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:03:36,320 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1] [2022-12-13 18:03:36,325 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 18:03:36,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:03:36,522 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 18:03:36,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:03:36,525 INFO L85 PathProgramCache]: Analyzing trace with hash 28369920, now seen corresponding path program 1 times [2022-12-13 18:03:36,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:03:36,526 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805709625] [2022-12-13 18:03:36,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:03:36,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:03:36,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:36,705 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:03:36,705 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:03:36,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805709625] [2022-12-13 18:03:36,706 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805709625] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:03:36,706 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492920316] [2022-12-13 18:03:36,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:03:36,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:03:36,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:03:36,707 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:03:36,708 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-13 18:03:36,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:36,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 5 conjunts are in the unsatisfiable core [2022-12-13 18:03:36,762 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:03:36,772 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:03:36,772 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 18:03:36,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492920316] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 18:03:36,773 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 18:03:36,773 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-12-13 18:03:36,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443526254] [2022-12-13 18:03:36,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 18:03:36,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 18:03:36,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:03:36,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 18:03:36,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2022-12-13 18:03:36,790 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 357 [2022-12-13 18:03:36,791 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 15 places, 11 transitions, 77 flow. Second operand has 5 states, 5 states have (on average 247.8) internal successors, (1239), 5 states have internal predecessors, (1239), 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) [2022-12-13 18:03:36,791 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:03:36,791 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 357 [2022-12-13 18:03:36,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:03:36,807 INFO L130 PetriNetUnfolder]: 1/7 cut-off events. [2022-12-13 18:03:36,807 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 18:03:36,807 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 7 events. 1/7 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 2/9 useless extension candidates. Maximal degree in co-relation 14. Up to 7 conditions per place. [2022-12-13 18:03:36,807 INFO L137 encePairwiseOnDemand]: 354/357 looper letters, 4 selfloop transitions, 3 changer transitions 0/7 dead transitions. [2022-12-13 18:03:36,807 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 17 places, 7 transitions, 64 flow [2022-12-13 18:03:36,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 18:03:36,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-13 18:03:36,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1242 transitions. [2022-12-13 18:03:36,811 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6957983193277311 [2022-12-13 18:03:36,811 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1242 transitions. [2022-12-13 18:03:36,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1242 transitions. [2022-12-13 18:03:36,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:03:36,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1242 transitions. [2022-12-13 18:03:36,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 248.4) internal successors, (1242), 5 states have internal predecessors, (1242), 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) [2022-12-13 18:03:36,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 357.0) internal successors, (2142), 6 states have internal predecessors, (2142), 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) [2022-12-13 18:03:36,816 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 357.0) internal successors, (2142), 6 states have internal predecessors, (2142), 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) [2022-12-13 18:03:36,816 INFO L175 Difference]: Start difference. First operand has 15 places, 11 transitions, 77 flow. Second operand 5 states and 1242 transitions. [2022-12-13 18:03:36,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 17 places, 7 transitions, 64 flow [2022-12-13 18:03:36,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 16 places, 7 transitions, 50 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-12-13 18:03:36,817 INFO L231 Difference]: Finished difference. Result has 16 places, 7 transitions, 42 flow [2022-12-13 18:03:36,817 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=12, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=42, PETRI_PLACES=16, PETRI_TRANSITIONS=7} [2022-12-13 18:03:36,817 INFO L288 CegarLoopForPetriNet]: 4 programPoint places, 12 predicate places. [2022-12-13 18:03:36,817 INFO L495 AbstractCegarLoop]: Abstraction has has 16 places, 7 transitions, 42 flow [2022-12-13 18:03:36,818 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 247.8) internal successors, (1239), 5 states have internal predecessors, (1239), 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) [2022-12-13 18:03:36,818 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:03:36,818 INFO L209 CegarLoopForPetriNet]: trace histogram [4, 1, 1] [2022-12-13 18:03:36,823 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-13 18:03:37,019 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:03:37,019 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 18:03:37,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:03:37,020 INFO L85 PathProgramCache]: Analyzing trace with hash 1493736673, now seen corresponding path program 2 times [2022-12-13 18:03:37,020 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:03:37,020 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1085771888] [2022-12-13 18:03:37,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:03:37,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:03:37,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:37,153 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:03:37,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:03:37,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1085771888] [2022-12-13 18:03:37,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1085771888] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:03:37,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422967134] [2022-12-13 18:03:37,154 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-12-13 18:03:37,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:03:37,154 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:03:37,155 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:03:37,156 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-12-13 18:03:37,209 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-12-13 18:03:37,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:03:37,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 7 conjunts are in the unsatisfiable core [2022-12-13 18:03:37,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:03:37,225 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:03:37,225 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:03:37,264 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:03:37,265 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422967134] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:03:37,265 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:03:37,265 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-12-13 18:03:37,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464609318] [2022-12-13 18:03:37,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:03:37,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-12-13 18:03:37,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:03:37,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-12-13 18:03:37,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2022-12-13 18:03:37,314 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 357 [2022-12-13 18:03:37,317 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 16 places, 7 transitions, 42 flow. Second operand has 13 states, 13 states have (on average 248.07692307692307) internal successors, (3225), 13 states have internal predecessors, (3225), 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) [2022-12-13 18:03:37,317 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:03:37,318 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 357 [2022-12-13 18:03:37,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:03:37,341 INFO L130 PetriNetUnfolder]: 1/13 cut-off events. [2022-12-13 18:03:37,341 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-12-13 18:03:37,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 13 events. 1/13 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 6/19 useless extension candidates. Maximal degree in co-relation 40. Up to 10 conditions per place. [2022-12-13 18:03:37,342 INFO L137 encePairwiseOnDemand]: 354/357 looper letters, 2 selfloop transitions, 11 changer transitions 0/13 dead transitions. [2022-12-13 18:03:37,342 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 13 transitions, 104 flow [2022-12-13 18:03:37,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-12-13 18:03:37,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-12-13 18:03:37,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2983 transitions. [2022-12-13 18:03:37,348 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6963118580765639 [2022-12-13 18:03:37,348 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2983 transitions. [2022-12-13 18:03:37,348 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2983 transitions. [2022-12-13 18:03:37,350 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:03:37,350 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2983 transitions. [2022-12-13 18:03:37,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 248.58333333333334) internal successors, (2983), 12 states have internal predecessors, (2983), 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) [2022-12-13 18:03:37,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 357.0) internal successors, (4641), 13 states have internal predecessors, (4641), 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) [2022-12-13 18:03:37,366 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 357.0) internal successors, (4641), 13 states have internal predecessors, (4641), 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) [2022-12-13 18:03:37,366 INFO L175 Difference]: Start difference. First operand has 16 places, 7 transitions, 42 flow. Second operand 12 states and 2983 transitions. [2022-12-13 18:03:37,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 13 transitions, 104 flow [2022-12-13 18:03:37,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 24 places, 13 transitions, 99 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-12-13 18:03:37,368 INFO L231 Difference]: Finished difference. Result has 30 places, 13 transitions, 121 flow [2022-12-13 18:03:37,368 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=37, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=7, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=121, PETRI_PLACES=30, PETRI_TRANSITIONS=13} [2022-12-13 18:03:37,368 INFO L288 CegarLoopForPetriNet]: 4 programPoint places, 26 predicate places. [2022-12-13 18:03:37,369 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 13 transitions, 121 flow [2022-12-13 18:03:37,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 248.07692307692307) internal successors, (3225), 13 states have internal predecessors, (3225), 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) [2022-12-13 18:03:37,370 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 18:03:37,370 INFO L209 CegarLoopForPetriNet]: trace histogram [10, 1, 1] [2022-12-13 18:03:37,375 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-12-13 18:03:37,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:03:37,571 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2022-12-13 18:03:37,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:03:37,572 INFO L85 PathProgramCache]: Analyzing trace with hash 948402049, now seen corresponding path program 3 times [2022-12-13 18:03:37,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:03:37,572 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336130905] [2022-12-13 18:03:37,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:03:37,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:03:37,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 18:03:37,763 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 18:03:37,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 18:03:37,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336130905] [2022-12-13 18:03:37,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336130905] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 18:03:37,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233868339] [2022-12-13 18:03:37,764 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-12-13 18:03:37,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:03:37,764 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:03:37,765 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 18:03:37,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-12-13 18:03:37,824 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-12-13 18:03:37,824 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-12-13 18:03:37,825 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 6 conjunts are in the unsatisfiable core [2022-12-13 18:03:37,826 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 18:03:37,859 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-12-13 18:03:37,859 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-12-13 18:03:37,889 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-12-13 18:03:37,890 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233868339] provided 0 perfect and 2 imperfect interpolant sequences [2022-12-13 18:03:37,890 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-12-13 18:03:37,890 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 2, 2] total 13 [2022-12-13 18:03:37,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893355228] [2022-12-13 18:03:37,890 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-12-13 18:03:37,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-12-13 18:03:37,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 18:03:37,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-12-13 18:03:37,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=117, Unknown=0, NotChecked=0, Total=210 [2022-12-13 18:03:37,937 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 244 out of 357 [2022-12-13 18:03:37,941 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 13 transitions, 121 flow. Second operand has 15 states, 15 states have (on average 245.06666666666666) internal successors, (3676), 15 states have internal predecessors, (3676), 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) [2022-12-13 18:03:37,941 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 18:03:37,941 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 244 of 357 [2022-12-13 18:03:37,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 18:03:38,047 INFO L130 PetriNetUnfolder]: 1/13 cut-off events. [2022-12-13 18:03:38,048 INFO L131 PetriNetUnfolder]: For 67/67 co-relation queries the response was YES. [2022-12-13 18:03:38,048 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 13 events. 1/13 cut-off events. For 67/67 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 2/15 useless extension candidates. Maximal degree in co-relation 54. Up to 10 conditions per place. [2022-12-13 18:03:38,048 INFO L137 encePairwiseOnDemand]: 354/357 looper letters, 0 selfloop transitions, 0 changer transitions 13/13 dead transitions. [2022-12-13 18:03:38,048 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 13 transitions, 133 flow [2022-12-13 18:03:38,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-12-13 18:03:38,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-12-13 18:03:38,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 3431 transitions. [2022-12-13 18:03:38,055 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.6864745898359343 [2022-12-13 18:03:38,055 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 3431 transitions. [2022-12-13 18:03:38,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 3431 transitions. [2022-12-13 18:03:38,057 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 18:03:38,057 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 3431 transitions. [2022-12-13 18:03:38,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 245.07142857142858) internal successors, (3431), 14 states have internal predecessors, (3431), 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) [2022-12-13 18:03:38,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 357.0) internal successors, (5355), 15 states have internal predecessors, (5355), 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) [2022-12-13 18:03:38,072 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 357.0) internal successors, (5355), 15 states have internal predecessors, (5355), 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) [2022-12-13 18:03:38,073 INFO L175 Difference]: Start difference. First operand has 30 places, 13 transitions, 121 flow. Second operand 14 states and 3431 transitions. [2022-12-13 18:03:38,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 13 transitions, 133 flow [2022-12-13 18:03:38,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 13 transitions, 59 flow, removed 22 selfloop flow, removed 15 redundant places. [2022-12-13 18:03:38,074 INFO L231 Difference]: Finished difference. Result has 27 places, 0 transitions, 0 flow [2022-12-13 18:03:38,074 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=357, PETRI_DIFFERENCE_MINUEND_FLOW=29, PETRI_DIFFERENCE_MINUEND_PLACES=14, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=12, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=12, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=0, PETRI_PLACES=27, PETRI_TRANSITIONS=0} [2022-12-13 18:03:38,075 INFO L288 CegarLoopForPetriNet]: 4 programPoint places, 23 predicate places. [2022-12-13 18:03:38,075 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 0 transitions, 0 flow [2022-12-13 18:03:38,076 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 245.06666666666666) internal successors, (3676), 15 states have internal predecessors, (3676), 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) [2022-12-13 18:03:38,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-12-13 18:03:38,079 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-12-13 18:03:38,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2022-12-13 18:03:38,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2022-12-13 18:03:38,085 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-12-13 18:03:38,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 18:03:38,281 INFO L445 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2022-12-13 18:03:38,284 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 18:03:38,284 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:03:38,288 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:03:38 BasicIcfg [2022-12-13 18:03:38,288 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:03:38,288 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:03:38,288 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:03:38,289 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:03:38,289 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:03:32" (3/4) ... [2022-12-13 18:03:38,292 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 18:03:38,298 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2022-12-13 18:03:38,298 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2022-12-13 18:03:38,302 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 21 nodes and edges [2022-12-13 18:03:38,302 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 18:03:38,302 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 18:03:38,302 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-12-13 18:03:38,336 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 18:03:38,336 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:03:38,337 INFO L158 Benchmark]: Toolchain (without parser) took 6494.27ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 104.7MB in the beginning and 119.7MB in the end (delta: -14.9MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2022-12-13 18:03:38,337 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 140.5MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:03:38,337 INFO L158 Benchmark]: CACSL2BoogieTranslator took 182.32ms. Allocated memory is still 140.5MB. Free memory was 104.5MB in the beginning and 92.4MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 18:03:38,337 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.35ms. Allocated memory is still 140.5MB. Free memory was 92.4MB in the beginning and 90.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:03:38,337 INFO L158 Benchmark]: Boogie Preprocessor took 21.31ms. Allocated memory is still 140.5MB. Free memory was 90.3MB in the beginning and 88.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:03:38,337 INFO L158 Benchmark]: RCFGBuilder took 443.37ms. Allocated memory is still 140.5MB. Free memory was 88.2MB in the beginning and 67.8MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-13 18:03:38,338 INFO L158 Benchmark]: TraceAbstraction took 5764.63ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 66.8MB in the beginning and 123.4MB in the end (delta: -56.7MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. [2022-12-13 18:03:38,338 INFO L158 Benchmark]: Witness Printer took 47.60ms. Allocated memory is still 169.9MB. Free memory was 122.8MB in the beginning and 119.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 18:03:38,339 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 140.5MB. Free memory is still 83.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 182.32ms. Allocated memory is still 140.5MB. Free memory was 104.5MB in the beginning and 92.4MB in the end (delta: 12.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 28.35ms. Allocated memory is still 140.5MB. Free memory was 92.4MB in the beginning and 90.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.31ms. Allocated memory is still 140.5MB. Free memory was 90.3MB in the beginning and 88.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 443.37ms. Allocated memory is still 140.5MB. Free memory was 88.2MB in the beginning and 67.8MB in the end (delta: 20.4MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 5764.63ms. Allocated memory was 140.5MB in the beginning and 169.9MB in the end (delta: 29.4MB). Free memory was 66.8MB in the beginning and 123.4MB in the end (delta: -56.7MB). Peak memory consumption was 57.8MB. Max. memory is 16.1GB. * Witness Printer took 47.60ms. Allocated memory is still 169.9MB. Free memory was 122.8MB in the beginning and 119.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.0s, 65 PlacesBefore, 4 PlacesAfterwards, 68 TransitionsBefore, 4 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 8 FixpointIterations, 60 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 22 TrivialYvCompositions, 0 ConcurrentYvCompositions, 3 ChoiceCompositions, 85 TotalNumberOfCompositions, 0 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 125]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 125]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 395 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.6s, OverallIterations: 5, TraceHistogramMax: 10, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 199 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 155 mSDsluCounter, 56 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 54 mSDsCounter, 37 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 280 IncrementalHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 37 mSolverCounterUnsat, 2 mSDtfsCounter, 280 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 73 GetRequests, 25 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=4, InterpolantAutomatonStates: 41, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 52 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 183 SizeOfPredicates, 3 NumberOfNonLiveVariables, 447 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 12 InterpolantComputations, 2 PerfectInterpolantSequences, 94/204 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 18:03:38,350 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_60de635f-b77e-4cbb-a953-5c65809e1634/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE