./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf73eadf-64cb-4ef2-b0eb-bb1a8af69afc/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf73eadf-64cb-4ef2-b0eb-bb1a8af69afc/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_cf73eadf-64cb-4ef2-b0eb-bb1a8af69afc/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf73eadf-64cb-4ef2-b0eb-bb1a8af69afc/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf73eadf-64cb-4ef2-b0eb-bb1a8af69afc/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_cf73eadf-64cb-4ef2-b0eb-bb1a8af69afc/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 b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c --- 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 11:50:41,933 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:50:41,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:50:41,952 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:50:41,953 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:50:41,954 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:50:41,955 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:50:41,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:50:41,958 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:50:41,958 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:50:41,959 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:50:41,960 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:50:41,960 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:50:41,961 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:50:41,962 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:50:41,962 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:50:41,963 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:50:41,963 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:50:41,964 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:50:41,965 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:50:41,966 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:50:41,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:50:41,968 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:50:41,969 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:50:41,976 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:50:41,976 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:50:41,976 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:50:41,977 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:50:41,977 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:50:41,978 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:50:41,978 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:50:41,979 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:50:41,980 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:50:41,980 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:50:41,981 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:50:41,981 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:50:41,981 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:50:41,982 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:50:41,982 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:50:41,982 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:50:41,983 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:50:41,983 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf73eadf-64cb-4ef2-b0eb-bb1a8af69afc/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-12-13 11:50:42,003 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:50:42,004 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:50:42,004 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:50:42,004 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:50:42,005 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:50:42,005 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:50:42,006 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:50:42,006 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:50:42,009 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:50:42,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:50:42,009 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 11:50:42,009 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:50:42,009 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:50:42,010 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 11:50:42,010 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:50:42,010 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:50:42,010 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:50:42,010 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:50:42,010 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 11:50:42,011 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 11:50:42,011 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:50:42,011 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:50:42,011 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:50:42,011 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:50:42,011 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:50:42,011 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:50:42,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:50:42,012 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:50:42,012 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:50:42,012 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:50:42,012 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:50:42,012 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:50:42,012 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:50:42,013 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:50:42,013 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:50:42,013 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:50:42,013 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:50:42,013 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_cf73eadf-64cb-4ef2-b0eb-bb1a8af69afc/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf73eadf-64cb-4ef2-b0eb-bb1a8af69afc/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b71c523f20411078d17c9943b891d34ddfc00131917c4009fb579cdffacef23c [2022-12-13 11:50:42,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:50:42,186 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:50:42,187 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:50:42,188 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:50:42,189 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:50:42,189 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf73eadf-64cb-4ef2-b0eb-bb1a8af69afc/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2022-12-13 11:50:44,784 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:50:45,001 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:50:45,001 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf73eadf-64cb-4ef2-b0eb-bb1a8af69afc/sv-benchmarks/c/goblint-regression/04-mutex_46-escape_nr.i [2022-12-13 11:50:45,013 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf73eadf-64cb-4ef2-b0eb-bb1a8af69afc/bin/uautomizer-uyxdKDjOR8/data/5e70fc9cf/50511853e1fe46f2a4a47619a28bddbd/FLAG9ca346c5d [2022-12-13 11:50:45,027 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf73eadf-64cb-4ef2-b0eb-bb1a8af69afc/bin/uautomizer-uyxdKDjOR8/data/5e70fc9cf/50511853e1fe46f2a4a47619a28bddbd [2022-12-13 11:50:45,029 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:50:45,031 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:50:45,032 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:50:45,032 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:50:45,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:50:45,036 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:50:45" (1/1) ... [2022-12-13 11:50:45,037 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33842985 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:45, skipping insertion in model container [2022-12-13 11:50:45,037 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:50:45" (1/1) ... [2022-12-13 11:50:45,044 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:50:45,082 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:50:45,394 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:50:45,404 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:50:45,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:50:45,473 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:50:45,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:45 WrapperNode [2022-12-13 11:50:45,473 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:50:45,474 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:50:45,474 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:50:45,474 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:50:45,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:45" (1/1) ... [2022-12-13 11:50:45,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:45" (1/1) ... [2022-12-13 11:50:45,504 INFO L138 Inliner]: procedures = 263, calls = 27, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 64 [2022-12-13 11:50:45,504 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:50:45,505 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:50:45,505 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:50:45,505 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:50:45,511 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:45" (1/1) ... [2022-12-13 11:50:45,511 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:45" (1/1) ... [2022-12-13 11:50:45,513 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:45" (1/1) ... [2022-12-13 11:50:45,514 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:45" (1/1) ... [2022-12-13 11:50:45,517 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:45" (1/1) ... [2022-12-13 11:50:45,518 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:45" (1/1) ... [2022-12-13 11:50:45,519 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:45" (1/1) ... [2022-12-13 11:50:45,520 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:45" (1/1) ... [2022-12-13 11:50:45,522 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:50:45,522 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:50:45,522 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:50:45,522 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:50:45,523 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:45" (1/1) ... [2022-12-13 11:50:45,528 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:50:45,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf73eadf-64cb-4ef2-b0eb-bb1a8af69afc/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:50:45,546 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf73eadf-64cb-4ef2-b0eb-bb1a8af69afc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:50:45,547 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf73eadf-64cb-4ef2-b0eb-bb1a8af69afc/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:50:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:50:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:50:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 11:50:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 11:50:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 11:50:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:50:45,581 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-12-13 11:50:45,582 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-12-13 11:50:45,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:50:45,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:50:45,582 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:50:45,583 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 11:50:45,699 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:50:45,701 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:50:45,846 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:50:45,851 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:50:45,851 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 11:50:45,853 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:50:45 BoogieIcfgContainer [2022-12-13 11:50:45,853 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:50:45,855 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:50:45,855 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:50:45,858 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:50:45,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:50:45" (1/3) ... [2022-12-13 11:50:45,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6edc8433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:50:45, skipping insertion in model container [2022-12-13 11:50:45,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:50:45" (2/3) ... [2022-12-13 11:50:45,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6edc8433 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:50:45, skipping insertion in model container [2022-12-13 11:50:45,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:50:45" (3/3) ... [2022-12-13 11:50:45,860 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_46-escape_nr.i [2022-12-13 11:50:45,867 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 11:50:45,875 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:50:45,875 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-12-13 11:50:45,875 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 11:50:45,914 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-12-13 11:50:45,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 85 transitions, 178 flow [2022-12-13 11:50:45,972 INFO L130 PetriNetUnfolder]: 1/84 cut-off events. [2022-12-13 11:50:45,973 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 11:50:45,976 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 84 events. 1/84 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 6. Up to 2 conditions per place. [2022-12-13 11:50:45,976 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 85 transitions, 178 flow [2022-12-13 11:50:45,979 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 67 transitions, 137 flow [2022-12-13 11:50:45,982 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 11:50:45,989 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 67 transitions, 137 flow [2022-12-13 11:50:45,991 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 67 transitions, 137 flow [2022-12-13 11:50:45,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 71 places, 67 transitions, 137 flow [2022-12-13 11:50:46,027 INFO L130 PetriNetUnfolder]: 0/67 cut-off events. [2022-12-13 11:50:46,027 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:50:46,028 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 67 events. 0/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 40 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2022-12-13 11:50:46,028 INFO L119 LiptonReduction]: Number of co-enabled transitions 480 [2022-12-13 11:50:47,796 INFO L134 LiptonReduction]: Checked pairs total: 1143 [2022-12-13 11:50:47,796 INFO L136 LiptonReduction]: Total number of compositions: 60 [2022-12-13 11:50:47,806 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:50:47,811 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;@2564de06, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:50:47,811 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-12-13 11:50:47,813 INFO L130 PetriNetUnfolder]: 0/4 cut-off events. [2022-12-13 11:50:47,813 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:50:47,813 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:50:47,813 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 11:50:47,814 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 11:50:47,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:47,817 INFO L85 PathProgramCache]: Analyzing trace with hash 8591161, now seen corresponding path program 1 times [2022-12-13 11:50:47,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:50:47,824 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550608287] [2022-12-13 11:50:47,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:50:47,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:50:47,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:50:48,110 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 11:50:48,111 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:50:48,111 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550608287] [2022-12-13 11:50:48,111 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550608287] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:50:48,112 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:50:48,112 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:50:48,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847402288] [2022-12-13 11:50:48,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:50:48,120 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:50:48,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:50:48,137 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:50:48,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:50:48,176 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-13 11:50:48,177 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 19 places, 15 transitions, 33 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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 11:50:48,178 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:50:48,178 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-13 11:50:48,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:50:48,227 INFO L130 PetriNetUnfolder]: 30/82 cut-off events. [2022-12-13 11:50:48,227 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:50:48,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 82 events. 30/82 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 281 event pairs, 15 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 155. Up to 42 conditions per place. [2022-12-13 11:50:48,229 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 16 selfloop transitions, 4 changer transitions 4/25 dead transitions. [2022-12-13 11:50:48,229 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 25 transitions, 101 flow [2022-12-13 11:50:48,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:50:48,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:50:48,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 253 transitions. [2022-12-13 11:50:48,240 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5816091954022988 [2022-12-13 11:50:48,240 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 253 transitions. [2022-12-13 11:50:48,241 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 253 transitions. [2022-12-13 11:50:48,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:50:48,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 253 transitions. [2022-12-13 11:50:48,246 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 84.33333333333333) internal successors, (253), 3 states have internal predecessors, (253), 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 11:50:48,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 11:50:48,251 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 11:50:48,253 INFO L175 Difference]: Start difference. First operand has 19 places, 15 transitions, 33 flow. Second operand 3 states and 253 transitions. [2022-12-13 11:50:48,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 25 transitions, 101 flow [2022-12-13 11:50:48,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 25 transitions, 100 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 11:50:48,257 INFO L231 Difference]: Finished difference. Result has 22 places, 16 transitions, 54 flow [2022-12-13 11:50:48,259 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=32, PETRI_DIFFERENCE_MINUEND_PLACES=18, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=22, PETRI_TRANSITIONS=16} [2022-12-13 11:50:48,262 INFO L288 CegarLoopForPetriNet]: 19 programPoint places, 3 predicate places. [2022-12-13 11:50:48,262 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 16 transitions, 54 flow [2022-12-13 11:50:48,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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 11:50:48,263 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:50:48,263 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 11:50:48,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:50:48,263 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 11:50:48,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:48,264 INFO L85 PathProgramCache]: Analyzing trace with hash 8591181, now seen corresponding path program 1 times [2022-12-13 11:50:48,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:50:48,264 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546451520] [2022-12-13 11:50:48,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:50:48,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:50:48,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:50:48,385 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 11:50:48,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:50:48,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546451520] [2022-12-13 11:50:48,386 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546451520] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:50:48,386 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:50:48,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 11:50:48,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350116921] [2022-12-13 11:50:48,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:50:48,388 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:50:48,388 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:50:48,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:50:48,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:50:48,414 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 145 [2022-12-13 11:50:48,414 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 16 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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 11:50:48,414 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:50:48,414 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 145 [2022-12-13 11:50:48,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:50:48,453 INFO L130 PetriNetUnfolder]: 22/63 cut-off events. [2022-12-13 11:50:48,453 INFO L131 PetriNetUnfolder]: For 22/22 co-relation queries the response was YES. [2022-12-13 11:50:48,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 151 conditions, 63 events. 22/63 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 191 event pairs, 9 based on Foata normal form. 5/58 useless extension candidates. Maximal degree in co-relation 139. Up to 32 conditions per place. [2022-12-13 11:50:48,454 INFO L137 encePairwiseOnDemand]: 140/145 looper letters, 15 selfloop transitions, 4 changer transitions 2/22 dead transitions. [2022-12-13 11:50:48,454 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 22 transitions, 106 flow [2022-12-13 11:50:48,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:50:48,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:50:48,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2022-12-13 11:50:48,456 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5747126436781609 [2022-12-13 11:50:48,456 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 250 transitions. [2022-12-13 11:50:48,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 250 transitions. [2022-12-13 11:50:48,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:50:48,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 250 transitions. [2022-12-13 11:50:48,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 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 11:50:48,460 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 11:50:48,460 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 11:50:48,460 INFO L175 Difference]: Start difference. First operand has 22 places, 16 transitions, 54 flow. Second operand 3 states and 250 transitions. [2022-12-13 11:50:48,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 22 transitions, 106 flow [2022-12-13 11:50:48,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 22 transitions, 98 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 11:50:48,462 INFO L231 Difference]: Finished difference. Result has 22 places, 15 transitions, 50 flow [2022-12-13 11:50:48,462 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=22, PETRI_TRANSITIONS=15} [2022-12-13 11:50:48,463 INFO L288 CegarLoopForPetriNet]: 19 programPoint places, 3 predicate places. [2022-12-13 11:50:48,463 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 15 transitions, 50 flow [2022-12-13 11:50:48,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 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 11:50:48,463 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:50:48,464 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 11:50:48,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 11:50:48,464 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 11:50:48,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:48,464 INFO L85 PathProgramCache]: Analyzing trace with hash 8591039, now seen corresponding path program 1 times [2022-12-13 11:50:48,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:50:48,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [511701438] [2022-12-13 11:50:48,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:50:48,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:50:48,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:50:48,586 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 11:50:48,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:50:48,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [511701438] [2022-12-13 11:50:48,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [511701438] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:50:48,586 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:50:48,586 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:50:48,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629402409] [2022-12-13 11:50:48,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:50:48,587 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:50:48,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:50:48,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:50:48,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:50:48,661 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 145 [2022-12-13 11:50:48,662 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 15 transitions, 50 flow. Second operand has 5 states, 5 states have (on average 75.8) internal successors, (379), 5 states have internal predecessors, (379), 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 11:50:48,662 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:50:48,662 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 145 [2022-12-13 11:50:48,662 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:50:48,732 INFO L130 PetriNetUnfolder]: 18/57 cut-off events. [2022-12-13 11:50:48,732 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-12-13 11:50:48,733 INFO L83 FinitePrefix]: Finished finitePrefix Result has 138 conditions, 57 events. 18/57 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 182 event pairs, 2 based on Foata normal form. 0/50 useless extension candidates. Maximal degree in co-relation 126. Up to 29 conditions per place. [2022-12-13 11:50:48,733 INFO L137 encePairwiseOnDemand]: 137/145 looper letters, 14 selfloop transitions, 8 changer transitions 2/25 dead transitions. [2022-12-13 11:50:48,733 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 25 transitions, 122 flow [2022-12-13 11:50:48,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:50:48,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 11:50:48,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 475 transitions. [2022-12-13 11:50:48,736 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5459770114942529 [2022-12-13 11:50:48,736 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 475 transitions. [2022-12-13 11:50:48,736 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 475 transitions. [2022-12-13 11:50:48,736 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:50:48,737 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 475 transitions. [2022-12-13 11:50:48,738 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.16666666666667) internal successors, (475), 6 states have internal predecessors, (475), 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 11:50:48,741 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 145.0) internal successors, (1015), 7 states have internal predecessors, (1015), 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 11:50:48,741 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 145.0) internal successors, (1015), 7 states have internal predecessors, (1015), 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 11:50:48,741 INFO L175 Difference]: Start difference. First operand has 22 places, 15 transitions, 50 flow. Second operand 6 states and 475 transitions. [2022-12-13 11:50:48,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 25 transitions, 122 flow [2022-12-13 11:50:48,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 25 transitions, 122 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 11:50:48,743 INFO L231 Difference]: Finished difference. Result has 30 places, 18 transitions, 94 flow [2022-12-13 11:50:48,743 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=94, PETRI_PLACES=30, PETRI_TRANSITIONS=18} [2022-12-13 11:50:48,744 INFO L288 CegarLoopForPetriNet]: 19 programPoint places, 11 predicate places. [2022-12-13 11:50:48,744 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 18 transitions, 94 flow [2022-12-13 11:50:48,744 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.8) internal successors, (379), 5 states have internal predecessors, (379), 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 11:50:48,744 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:50:48,744 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 11:50:48,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 11:50:48,745 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 11:50:48,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:48,745 INFO L85 PathProgramCache]: Analyzing trace with hash 8591053, now seen corresponding path program 1 times [2022-12-13 11:50:48,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:50:48,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142060781] [2022-12-13 11:50:48,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:50:48,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:50:48,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:50:48,836 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 11:50:48,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:50:48,836 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142060781] [2022-12-13 11:50:48,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142060781] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:50:48,836 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:50:48,836 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:50:48,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [826127228] [2022-12-13 11:50:48,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:50:48,837 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-13 11:50:48,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:50:48,838 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-13 11:50:48,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 11:50:48,894 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 145 [2022-12-13 11:50:48,895 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 18 transitions, 94 flow. Second operand has 5 states, 5 states have (on average 75.8) internal successors, (379), 5 states have internal predecessors, (379), 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 11:50:48,895 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:50:48,895 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 145 [2022-12-13 11:50:48,895 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:50:48,954 INFO L130 PetriNetUnfolder]: 16/49 cut-off events. [2022-12-13 11:50:48,954 INFO L131 PetriNetUnfolder]: For 55/55 co-relation queries the response was YES. [2022-12-13 11:50:48,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 157 conditions, 49 events. 16/49 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 141 event pairs, 2 based on Foata normal form. 3/52 useless extension candidates. Maximal degree in co-relation 139. Up to 27 conditions per place. [2022-12-13 11:50:48,955 INFO L137 encePairwiseOnDemand]: 137/145 looper letters, 13 selfloop transitions, 8 changer transitions 2/24 dead transitions. [2022-12-13 11:50:48,955 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 24 transitions, 150 flow [2022-12-13 11:50:48,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-13 11:50:48,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-13 11:50:48,956 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 474 transitions. [2022-12-13 11:50:48,956 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5448275862068965 [2022-12-13 11:50:48,956 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 474 transitions. [2022-12-13 11:50:48,956 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 474 transitions. [2022-12-13 11:50:48,956 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:50:48,956 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 474 transitions. [2022-12-13 11:50:48,957 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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 11:50:48,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 145.0) internal successors, (1015), 7 states have internal predecessors, (1015), 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 11:50:48,958 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 145.0) internal successors, (1015), 7 states have internal predecessors, (1015), 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 11:50:48,959 INFO L175 Difference]: Start difference. First operand has 30 places, 18 transitions, 94 flow. Second operand 6 states and 474 transitions. [2022-12-13 11:50:48,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 24 transitions, 150 flow [2022-12-13 11:50:48,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 24 transitions, 131 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 11:50:48,960 INFO L231 Difference]: Finished difference. Result has 31 places, 17 transitions, 87 flow [2022-12-13 11:50:48,960 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=87, PETRI_PLACES=31, PETRI_TRANSITIONS=17} [2022-12-13 11:50:48,960 INFO L288 CegarLoopForPetriNet]: 19 programPoint places, 12 predicate places. [2022-12-13 11:50:48,960 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 17 transitions, 87 flow [2022-12-13 11:50:48,961 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.8) internal successors, (379), 5 states have internal predecessors, (379), 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 11:50:48,961 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:50:48,961 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:50:48,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 11:50:48,961 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 11:50:48,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:48,961 INFO L85 PathProgramCache]: Analyzing trace with hash -1758314881, now seen corresponding path program 1 times [2022-12-13 11:50:48,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:50:48,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874881833] [2022-12-13 11:50:48,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:50:48,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:50:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:50:48,996 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 11:50:48,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:50:48,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874881833] [2022-12-13 11:50:48,996 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874881833] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:50:48,996 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:50:48,996 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 11:50:48,997 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605264407] [2022-12-13 11:50:48,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:50:48,997 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 11:50:48,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:50:48,997 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 11:50:48,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 11:50:49,009 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 145 [2022-12-13 11:50:49,010 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 17 transitions, 87 flow. Second operand has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 11:50:49,010 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:50:49,010 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 145 [2022-12-13 11:50:49,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:50:49,031 INFO L130 PetriNetUnfolder]: 0/19 cut-off events. [2022-12-13 11:50:49,031 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2022-12-13 11:50:49,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 19 events. 0/19 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 32 event pairs, 0 based on Foata normal form. 6/25 useless extension candidates. Maximal degree in co-relation 0. Up to 14 conditions per place. [2022-12-13 11:50:49,032 INFO L137 encePairwiseOnDemand]: 141/145 looper letters, 10 selfloop transitions, 5 changer transitions 0/16 dead transitions. [2022-12-13 11:50:49,032 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 16 transitions, 108 flow [2022-12-13 11:50:49,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 11:50:49,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 11:50:49,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 250 transitions. [2022-12-13 11:50:49,033 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5747126436781609 [2022-12-13 11:50:49,034 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 250 transitions. [2022-12-13 11:50:49,034 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 250 transitions. [2022-12-13 11:50:49,034 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:50:49,034 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 250 transitions. [2022-12-13 11:50:49,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 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 11:50:49,036 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 11:50:49,036 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 145.0) internal successors, (580), 4 states have internal predecessors, (580), 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 11:50:49,036 INFO L175 Difference]: Start difference. First operand has 31 places, 17 transitions, 87 flow. Second operand 3 states and 250 transitions. [2022-12-13 11:50:49,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 16 transitions, 108 flow [2022-12-13 11:50:49,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 16 transitions, 92 flow, removed 1 selfloop flow, removed 5 redundant places. [2022-12-13 11:50:49,037 INFO L231 Difference]: Finished difference. Result has 28 places, 16 transitions, 72 flow [2022-12-13 11:50:49,037 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=11, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=72, PETRI_PLACES=28, PETRI_TRANSITIONS=16} [2022-12-13 11:50:49,037 INFO L288 CegarLoopForPetriNet]: 19 programPoint places, 9 predicate places. [2022-12-13 11:50:49,037 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 16 transitions, 72 flow [2022-12-13 11:50:49,038 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.33333333333333) internal successors, (241), 3 states have internal predecessors, (241), 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 11:50:49,038 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:50:49,038 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:50:49,038 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 11:50:49,038 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 11:50:49,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:49,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1219363131, now seen corresponding path program 1 times [2022-12-13 11:50:49,038 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:50:49,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [335760820] [2022-12-13 11:50:49,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:50:49,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:50:49,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:50:49,175 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 11:50:49,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:50:49,175 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [335760820] [2022-12-13 11:50:49,176 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [335760820] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:50:49,176 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:50:49,176 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 11:50:49,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [846162221] [2022-12-13 11:50:49,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:50:49,176 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 11:50:49,176 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:50:49,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 11:50:49,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-12-13 11:50:49,284 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 145 [2022-12-13 11:50:49,285 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 16 transitions, 72 flow. Second operand has 7 states, 7 states have (on average 72.14285714285714) internal successors, (505), 7 states have internal predecessors, (505), 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 11:50:49,285 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:50:49,285 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 145 [2022-12-13 11:50:49,285 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:50:49,350 INFO L130 PetriNetUnfolder]: 0/18 cut-off events. [2022-12-13 11:50:49,350 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 11:50:49,351 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64 conditions, 18 events. 0/18 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 26 event pairs, 0 based on Foata normal form. 1/19 useless extension candidates. Maximal degree in co-relation 0. Up to 7 conditions per place. [2022-12-13 11:50:49,351 INFO L137 encePairwiseOnDemand]: 137/145 looper letters, 8 selfloop transitions, 7 changer transitions 2/18 dead transitions. [2022-12-13 11:50:49,351 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 18 transitions, 110 flow [2022-12-13 11:50:49,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 11:50:49,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 11:50:49,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 515 transitions. [2022-12-13 11:50:49,352 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5073891625615764 [2022-12-13 11:50:49,352 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 515 transitions. [2022-12-13 11:50:49,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 515 transitions. [2022-12-13 11:50:49,353 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:50:49,353 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 515 transitions. [2022-12-13 11:50:49,353 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 73.57142857142857) internal successors, (515), 7 states have internal predecessors, (515), 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 11:50:49,354 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 145.0) internal successors, (1160), 8 states have internal predecessors, (1160), 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 11:50:49,355 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 145.0) internal successors, (1160), 8 states have internal predecessors, (1160), 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 11:50:49,355 INFO L175 Difference]: Start difference. First operand has 28 places, 16 transitions, 72 flow. Second operand 7 states and 515 transitions. [2022-12-13 11:50:49,355 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 18 transitions, 110 flow [2022-12-13 11:50:49,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 18 transitions, 99 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-12-13 11:50:49,355 INFO L231 Difference]: Finished difference. Result has 31 places, 15 transitions, 72 flow [2022-12-13 11:50:49,356 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=15, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=72, PETRI_PLACES=31, PETRI_TRANSITIONS=15} [2022-12-13 11:50:49,356 INFO L288 CegarLoopForPetriNet]: 19 programPoint places, 12 predicate places. [2022-12-13 11:50:49,356 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 15 transitions, 72 flow [2022-12-13 11:50:49,356 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 72.14285714285714) internal successors, (505), 7 states have internal predecessors, (505), 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 11:50:49,356 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:50:49,356 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:50:49,357 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 11:50:49,357 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 11:50:49,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:49,357 INFO L85 PathProgramCache]: Analyzing trace with hash 1219363111, now seen corresponding path program 1 times [2022-12-13 11:50:49,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:50:49,357 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740794965] [2022-12-13 11:50:49,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:50:49,357 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:50:49,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:50:49,438 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 11:50:49,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:50:49,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740794965] [2022-12-13 11:50:49,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740794965] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:50:49,438 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:50:49,438 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 11:50:49,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1864799520] [2022-12-13 11:50:49,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:50:49,439 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:50:49,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:50:49,439 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:50:49,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:50:49,527 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 145 [2022-12-13 11:50:49,528 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 15 transitions, 72 flow. Second operand has 6 states, 6 states have (on average 71.33333333333333) internal successors, (428), 6 states have internal predecessors, (428), 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 11:50:49,528 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:50:49,528 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 145 [2022-12-13 11:50:49,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:50:49,593 INFO L130 PetriNetUnfolder]: 0/16 cut-off events. [2022-12-13 11:50:49,593 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 11:50:49,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 59 conditions, 16 events. 0/16 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 19 event pairs, 0 based on Foata normal form. 1/17 useless extension candidates. Maximal degree in co-relation 0. Up to 5 conditions per place. [2022-12-13 11:50:49,594 INFO L137 encePairwiseOnDemand]: 137/145 looper letters, 4 selfloop transitions, 5 changer transitions 6/16 dead transitions. [2022-12-13 11:50:49,594 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 16 transitions, 102 flow [2022-12-13 11:50:49,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:50:49,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 11:50:49,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 576 transitions. [2022-12-13 11:50:49,595 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.496551724137931 [2022-12-13 11:50:49,595 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 576 transitions. [2022-12-13 11:50:49,595 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 576 transitions. [2022-12-13 11:50:49,596 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:50:49,596 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 576 transitions. [2022-12-13 11:50:49,598 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 72.0) internal successors, (576), 8 states have internal predecessors, (576), 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 11:50:49,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 145.0) internal successors, (1305), 9 states have internal predecessors, (1305), 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 11:50:49,602 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 145.0) internal successors, (1305), 9 states have internal predecessors, (1305), 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 11:50:49,602 INFO L175 Difference]: Start difference. First operand has 31 places, 15 transitions, 72 flow. Second operand 8 states and 576 transitions. [2022-12-13 11:50:49,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 16 transitions, 102 flow [2022-12-13 11:50:49,603 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 16 transitions, 91 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-13 11:50:49,603 INFO L231 Difference]: Finished difference. Result has 32 places, 10 transitions, 49 flow [2022-12-13 11:50:49,604 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=14, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=49, PETRI_PLACES=32, PETRI_TRANSITIONS=10} [2022-12-13 11:50:49,604 INFO L288 CegarLoopForPetriNet]: 19 programPoint places, 13 predicate places. [2022-12-13 11:50:49,604 INFO L495 AbstractCegarLoop]: Abstraction has has 32 places, 10 transitions, 49 flow [2022-12-13 11:50:49,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.33333333333333) internal successors, (428), 6 states have internal predecessors, (428), 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 11:50:49,605 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:50:49,605 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:50:49,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 11:50:49,605 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 11:50:49,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:49,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1320169020, now seen corresponding path program 1 times [2022-12-13 11:50:49,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:50:49,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1835944563] [2022-12-13 11:50:49,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:50:49,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:50:49,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:50:49,726 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 11:50:49,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:50:49,726 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1835944563] [2022-12-13 11:50:49,726 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1835944563] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:50:49,726 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:50:49,727 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 11:50:49,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505405171] [2022-12-13 11:50:49,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:50:49,727 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-12-13 11:50:49,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:50:49,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-12-13 11:50:49,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-12-13 11:50:49,839 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 145 [2022-12-13 11:50:49,840 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 10 transitions, 49 flow. Second operand has 7 states, 7 states have (on average 72.14285714285714) internal successors, (505), 7 states have internal predecessors, (505), 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 11:50:49,840 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:50:49,840 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 145 [2022-12-13 11:50:49,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:50:49,879 INFO L130 PetriNetUnfolder]: 0/9 cut-off events. [2022-12-13 11:50:49,879 INFO L131 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-12-13 11:50:49,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 9 events. 0/9 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 2 event pairs, 0 based on Foata normal form. 1/10 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2022-12-13 11:50:49,880 INFO L137 encePairwiseOnDemand]: 138/145 looper letters, 2 selfloop transitions, 6 changer transitions 0/9 dead transitions. [2022-12-13 11:50:49,880 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 9 transitions, 59 flow [2022-12-13 11:50:49,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-13 11:50:49,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-13 11:50:49,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 577 transitions. [2022-12-13 11:50:49,882 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.4974137931034483 [2022-12-13 11:50:49,882 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 577 transitions. [2022-12-13 11:50:49,882 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 577 transitions. [2022-12-13 11:50:49,882 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:50:49,882 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 577 transitions. [2022-12-13 11:50:49,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 72.125) internal successors, (577), 8 states have internal predecessors, (577), 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 11:50:49,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 145.0) internal successors, (1305), 9 states have internal predecessors, (1305), 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 11:50:49,886 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 145.0) internal successors, (1305), 9 states have internal predecessors, (1305), 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 11:50:49,886 INFO L175 Difference]: Start difference. First operand has 32 places, 10 transitions, 49 flow. Second operand 8 states and 577 transitions. [2022-12-13 11:50:49,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 9 transitions, 59 flow [2022-12-13 11:50:49,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 22 places, 9 transitions, 41 flow, removed 1 selfloop flow, removed 8 redundant places. [2022-12-13 11:50:49,887 INFO L231 Difference]: Finished difference. Result has 22 places, 9 transitions, 37 flow [2022-12-13 11:50:49,887 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=25, PETRI_DIFFERENCE_MINUEND_PLACES=15, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=3, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=37, PETRI_PLACES=22, PETRI_TRANSITIONS=9} [2022-12-13 11:50:49,887 INFO L288 CegarLoopForPetriNet]: 19 programPoint places, 3 predicate places. [2022-12-13 11:50:49,888 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 9 transitions, 37 flow [2022-12-13 11:50:49,888 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 72.14285714285714) internal successors, (505), 7 states have internal predecessors, (505), 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 11:50:49,888 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 11:50:49,888 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:50:49,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 11:50:49,888 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2022-12-13 11:50:49,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:50:49,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1320169006, now seen corresponding path program 1 times [2022-12-13 11:50:49,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:50:49,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953499880] [2022-12-13 11:50:49,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:50:49,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:50:49,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 11:50:49,990 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 11:50:49,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 11:50:49,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953499880] [2022-12-13 11:50:49,990 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953499880] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 11:50:49,990 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 11:50:49,991 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-13 11:50:49,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [717829341] [2022-12-13 11:50:49,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 11:50:49,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-12-13 11:50:49,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 11:50:49,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-12-13 11:50:49,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-12-13 11:50:50,072 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 145 [2022-12-13 11:50:50,073 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 9 transitions, 37 flow. Second operand has 6 states, 6 states have (on average 71.33333333333333) internal successors, (428), 6 states have internal predecessors, (428), 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 11:50:50,073 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 11:50:50,073 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 145 [2022-12-13 11:50:50,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 11:50:50,110 INFO L130 PetriNetUnfolder]: 0/8 cut-off events. [2022-12-13 11:50:50,110 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 11:50:50,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 8 events. 0/8 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 1 event pairs, 0 based on Foata normal form. 1/9 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-12-13 11:50:50,111 INFO L137 encePairwiseOnDemand]: 139/145 looper letters, 0 selfloop transitions, 0 changer transitions 8/8 dead transitions. [2022-12-13 11:50:50,111 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 8 transitions, 48 flow [2022-12-13 11:50:50,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-13 11:50:50,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-13 11:50:50,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 498 transitions. [2022-12-13 11:50:50,113 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.49064039408866994 [2022-12-13 11:50:50,113 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 498 transitions. [2022-12-13 11:50:50,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 498 transitions. [2022-12-13 11:50:50,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 11:50:50,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 498 transitions. [2022-12-13 11:50:50,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 71.14285714285714) internal successors, (498), 7 states have internal predecessors, (498), 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 11:50:50,118 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 145.0) internal successors, (1160), 8 states have internal predecessors, (1160), 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 11:50:50,118 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 145.0) internal successors, (1160), 8 states have internal predecessors, (1160), 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 11:50:50,118 INFO L175 Difference]: Start difference. First operand has 22 places, 9 transitions, 37 flow. Second operand 7 states and 498 transitions. [2022-12-13 11:50:50,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 8 transitions, 48 flow [2022-12-13 11:50:50,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 19 places, 8 transitions, 34 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-12-13 11:50:50,119 INFO L231 Difference]: Finished difference. Result has 19 places, 0 transitions, 0 flow [2022-12-13 11:50:50,119 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=145, PETRI_DIFFERENCE_MINUEND_FLOW=20, PETRI_DIFFERENCE_MINUEND_PLACES=13, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=8, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=19, PETRI_TRANSITIONS=0} [2022-12-13 11:50:50,119 INFO L288 CegarLoopForPetriNet]: 19 programPoint places, 0 predicate places. [2022-12-13 11:50:50,120 INFO L495 AbstractCegarLoop]: Abstraction has has 19 places, 0 transitions, 0 flow [2022-12-13 11:50:50,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 71.33333333333333) internal successors, (428), 6 states have internal predecessors, (428), 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 11:50:50,122 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 7 remaining) [2022-12-13 11:50:50,122 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 7 remaining) [2022-12-13 11:50:50,122 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 7 remaining) [2022-12-13 11:50:50,122 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 7 remaining) [2022-12-13 11:50:50,122 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 7 remaining) [2022-12-13 11:50:50,122 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 7 remaining) [2022-12-13 11:50:50,122 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 7 remaining) [2022-12-13 11:50:50,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 11:50:50,123 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:50:50,126 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 11:50:50,127 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:50:50,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:50:50 BasicIcfg [2022-12-13 11:50:50,129 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:50:50,129 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:50:50,129 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:50:50,129 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:50:50,130 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:50:45" (3/4) ... [2022-12-13 11:50:50,131 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-12-13 11:50:50,136 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2022-12-13 11:50:50,138 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2022-12-13 11:50:50,138 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-12-13 11:50:50,138 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2022-12-13 11:50:50,160 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf73eadf-64cb-4ef2-b0eb-bb1a8af69afc/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 11:50:50,160 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:50:50,161 INFO L158 Benchmark]: Toolchain (without parser) took 5130.01ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 105.1MB in the beginning and 82.8MB in the end (delta: 22.3MB). Peak memory consumption was 53.8MB. Max. memory is 16.1GB. [2022-12-13 11:50:50,161 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 142.6MB. Free memory was 107.9MB in the beginning and 107.7MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:50:50,161 INFO L158 Benchmark]: CACSL2BoogieTranslator took 441.83ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 77.9MB in the end (delta: 26.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-12-13 11:50:50,161 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.12ms. Allocated memory is still 142.6MB. Free memory was 77.9MB in the beginning and 75.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:50:50,162 INFO L158 Benchmark]: Boogie Preprocessor took 17.27ms. Allocated memory is still 142.6MB. Free memory was 75.8MB in the beginning and 74.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:50:50,162 INFO L158 Benchmark]: RCFGBuilder took 330.79ms. Allocated memory is still 142.6MB. Free memory was 74.0MB in the beginning and 60.2MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 11:50:50,162 INFO L158 Benchmark]: TraceAbstraction took 4273.95ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 59.7MB in the beginning and 84.9MB in the end (delta: -25.2MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2022-12-13 11:50:50,163 INFO L158 Benchmark]: Witness Printer took 30.87ms. Allocated memory is still 172.0MB. Free memory was 84.9MB in the beginning and 82.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:50:50,164 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 142.6MB. Free memory was 107.9MB in the beginning and 107.7MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 441.83ms. Allocated memory is still 142.6MB. Free memory was 104.7MB in the beginning and 77.9MB in the end (delta: 26.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 30.12ms. Allocated memory is still 142.6MB. Free memory was 77.9MB in the beginning and 75.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.27ms. Allocated memory is still 142.6MB. Free memory was 75.8MB in the beginning and 74.0MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 330.79ms. Allocated memory is still 142.6MB. Free memory was 74.0MB in the beginning and 60.2MB in the end (delta: 13.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4273.95ms. Allocated memory was 142.6MB in the beginning and 172.0MB in the end (delta: 29.4MB). Free memory was 59.7MB in the beginning and 84.9MB in the end (delta: -25.2MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. * Witness Printer took 30.87ms. Allocated memory is still 172.0MB. Free memory was 84.9MB in the beginning and 82.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.8s, 71 PlacesBefore, 19 PlacesAfterwards, 67 TransitionsBefore, 15 TransitionsAfterwards, 480 CoEnabledTransitionPairs, 6 FixpointIterations, 34 TrivialSequentialCompositions, 26 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 60 TotalNumberOfCompositions, 1143 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 692, independent: 577, independent conditional: 0, independent unconditional: 577, dependent: 115, dependent conditional: 0, dependent unconditional: 115, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 283, independent: 266, independent conditional: 0, independent unconditional: 266, dependent: 17, dependent conditional: 0, dependent unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 692, independent: 311, independent conditional: 0, independent unconditional: 311, dependent: 98, dependent conditional: 0, dependent unconditional: 98, unknown: 283, unknown conditional: 0, unknown unconditional: 283] , Statistics on independence cache: Total cache size (in pairs): 33, Positive cache size: 23, Positive conditional cache size: 0, Positive unconditional cache size: 23, Negative cache size: 10, Negative conditional cache size: 0, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 936]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 924]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 924]: 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 3 procedures, 103 locations, 7 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: 4.2s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 831 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 537 mSDsluCounter, 328 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 259 mSDsCounter, 27 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1397 IncrementalHoareTripleChecker+Invalid, 1424 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 27 mSolverCounterUnsat, 69 mSDtfsCounter, 1397 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred in iteration=3, InterpolantAutomatonStates: 51, 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, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 55 NumberOfCodeBlocks, 55 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 46 ConstructedInterpolants, 0 QuantifiedInterpolants, 348 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 11:50:50,177 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cf73eadf-64cb-4ef2-b0eb-bb1a8af69afc/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