./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/pthread-complex/bounded_buffer.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6b4ec56b 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_6e5e7a73-f057-4932-b097-68021f1a25cf/bin/uautomizer-ug76WZFUDN/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5e7a73-f057-4932-b097-68021f1a25cf/bin/uautomizer-ug76WZFUDN/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5e7a73-f057-4932-b097-68021f1a25cf/bin/uautomizer-ug76WZFUDN/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5e7a73-f057-4932-b097-68021f1a25cf/bin/uautomizer-ug76WZFUDN/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-complex/bounded_buffer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5e7a73-f057-4932-b097-68021f1a25cf/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5e7a73-f057-4932-b097-68021f1a25cf/bin/uautomizer-ug76WZFUDN --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-6b4ec56 [2022-11-20 10:45:46,820 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-20 10:45:46,822 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-20 10:45:46,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-20 10:45:46,851 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-20 10:45:46,854 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-20 10:45:46,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-20 10:45:46,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-20 10:45:46,862 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-20 10:45:46,868 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-20 10:45:46,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-20 10:45:46,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-20 10:45:46,873 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-20 10:45:46,875 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-20 10:45:46,878 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-20 10:45:46,879 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-20 10:45:46,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-20 10:45:46,882 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-20 10:45:46,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-20 10:45:46,891 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-20 10:45:46,892 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-20 10:45:46,894 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-20 10:45:46,896 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-20 10:45:46,897 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-20 10:45:46,907 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-20 10:45:46,907 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-20 10:45:46,907 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-20 10:45:46,909 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-20 10:45:46,910 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-20 10:45:46,911 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-20 10:45:46,912 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-20 10:45:46,912 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-20 10:45:46,915 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-20 10:45:46,917 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-20 10:45:46,918 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-20 10:45:46,918 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-20 10:45:46,919 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-20 10:45:46,919 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-20 10:45:46,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-20 10:45:46,920 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-20 10:45:46,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-20 10:45:46,922 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5e7a73-f057-4932-b097-68021f1a25cf/bin/uautomizer-ug76WZFUDN/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-20 10:45:46,962 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-20 10:45:46,963 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-20 10:45:46,963 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-20 10:45:46,964 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-20 10:45:46,965 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-20 10:45:46,965 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-20 10:45:46,966 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-20 10:45:46,966 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-20 10:45:46,966 INFO L138 SettingsManager]: * Use SBE=true [2022-11-20 10:45:46,966 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-20 10:45:46,968 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-20 10:45:46,968 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-20 10:45:46,968 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-20 10:45:46,968 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-20 10:45:46,968 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-20 10:45:46,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-20 10:45:46,969 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-20 10:45:46,969 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-20 10:45:46,969 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-20 10:45:46,969 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-20 10:45:46,970 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-20 10:45:46,970 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-20 10:45:46,970 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-20 10:45:46,970 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-20 10:45:46,970 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-20 10:45:46,971 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-20 10:45:46,971 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:45:46,971 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-20 10:45:46,971 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-20 10:45:46,972 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-20 10:45:46,972 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-20 10:45:46,972 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-20 10:45:46,972 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-11-20 10:45:46,973 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-20 10:45:46,973 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-20 10:45:46,973 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5e7a73-f057-4932-b097-68021f1a25cf/bin/uautomizer-ug76WZFUDN/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5e7a73-f057-4932-b097-68021f1a25cf/bin/uautomizer-ug76WZFUDN Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 [2022-11-20 10:45:47,283 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-20 10:45:47,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-20 10:45:47,324 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-20 10:45:47,325 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-20 10:45:47,326 INFO L275 PluginConnector]: CDTParser initialized [2022-11-20 10:45:47,327 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5e7a73-f057-4932-b097-68021f1a25cf/bin/uautomizer-ug76WZFUDN/../../sv-benchmarks/c/pthread-complex/bounded_buffer.i [2022-11-20 10:45:50,456 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-20 10:45:50,870 INFO L351 CDTParser]: Found 1 translation units. [2022-11-20 10:45:50,871 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5e7a73-f057-4932-b097-68021f1a25cf/sv-benchmarks/c/pthread-complex/bounded_buffer.i [2022-11-20 10:45:50,893 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5e7a73-f057-4932-b097-68021f1a25cf/bin/uautomizer-ug76WZFUDN/data/81496a237/d66de63769d94810a4d6b7c0349b153f/FLAG2d66c2918 [2022-11-20 10:45:50,909 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5e7a73-f057-4932-b097-68021f1a25cf/bin/uautomizer-ug76WZFUDN/data/81496a237/d66de63769d94810a4d6b7c0349b153f [2022-11-20 10:45:50,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-20 10:45:50,913 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-20 10:45:50,915 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-20 10:45:50,915 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-20 10:45:50,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-20 10:45:50,920 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:45:50" (1/1) ... [2022-11-20 10:45:50,921 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3845490f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:50, skipping insertion in model container [2022-11-20 10:45:50,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 10:45:50" (1/1) ... [2022-11-20 10:45:50,929 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-20 10:45:50,989 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-20 10:45:51,758 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5e7a73-f057-4932-b097-68021f1a25cf/sv-benchmarks/c/pthread-complex/bounded_buffer.i[70002,70015] [2022-11-20 10:45:51,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:45:51,808 INFO L203 MainTranslator]: Completed pre-run [2022-11-20 10:45:51,870 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5e7a73-f057-4932-b097-68021f1a25cf/sv-benchmarks/c/pthread-complex/bounded_buffer.i[70002,70015] [2022-11-20 10:45:51,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-20 10:45:52,041 INFO L208 MainTranslator]: Completed translation [2022-11-20 10:45:52,042 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:52 WrapperNode [2022-11-20 10:45:52,042 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-20 10:45:52,043 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-20 10:45:52,043 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-20 10:45:52,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-20 10:45:52,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:52" (1/1) ... [2022-11-20 10:45:52,089 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:52" (1/1) ... [2022-11-20 10:45:52,171 INFO L138 Inliner]: procedures = 428, calls = 126, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 476 [2022-11-20 10:45:52,172 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-20 10:45:52,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-20 10:45:52,172 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-20 10:45:52,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-20 10:45:52,182 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:52" (1/1) ... [2022-11-20 10:45:52,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:52" (1/1) ... [2022-11-20 10:45:52,200 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:52" (1/1) ... [2022-11-20 10:45:52,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:52" (1/1) ... [2022-11-20 10:45:52,221 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:52" (1/1) ... [2022-11-20 10:45:52,251 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:52" (1/1) ... [2022-11-20 10:45:52,253 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:52" (1/1) ... [2022-11-20 10:45:52,256 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:52" (1/1) ... [2022-11-20 10:45:52,260 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-20 10:45:52,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-20 10:45:52,261 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-20 10:45:52,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-20 10:45:52,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:52" (1/1) ... [2022-11-20 10:45:52,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-20 10:45:52,281 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5e7a73-f057-4932-b097-68021f1a25cf/bin/uautomizer-ug76WZFUDN/z3 [2022-11-20 10:45:52,294 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5e7a73-f057-4932-b097-68021f1a25cf/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-20 10:45:52,322 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6e5e7a73-f057-4932-b097-68021f1a25cf/bin/uautomizer-ug76WZFUDN/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-20 10:45:52,337 INFO L130 BoogieDeclarations]: Found specification of procedure producer_routine [2022-11-20 10:45:52,338 INFO L138 BoogieDeclarations]: Found implementation of procedure producer_routine [2022-11-20 10:45:52,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-20 10:45:52,338 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-20 10:45:52,338 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-20 10:45:52,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-20 10:45:52,339 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2022-11-20 10:45:52,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-20 10:45:52,339 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-20 10:45:52,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-20 10:45:52,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-20 10:45:52,340 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-20 10:45:52,340 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-20 10:45:52,340 INFO L130 BoogieDeclarations]: Found specification of procedure consumer_routine [2022-11-20 10:45:52,341 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer_routine [2022-11-20 10:45:52,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-20 10:45:52,341 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-20 10:45:52,343 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-20 10:45:52,606 INFO L235 CfgBuilder]: Building ICFG [2022-11-20 10:45:52,608 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-20 10:45:53,455 INFO L276 CfgBuilder]: Performing block encoding [2022-11-20 10:45:53,473 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-20 10:45:53,474 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-20 10:45:53,477 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:45:53 BoogieIcfgContainer [2022-11-20 10:45:53,477 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-20 10:45:53,479 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-20 10:45:53,479 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-20 10:45:53,482 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-20 10:45:53,483 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 10:45:50" (1/3) ... [2022-11-20 10:45:53,483 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec7d63f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:45:53, skipping insertion in model container [2022-11-20 10:45:53,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 10:45:52" (2/3) ... [2022-11-20 10:45:53,484 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec7d63f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 10:45:53, skipping insertion in model container [2022-11-20 10:45:53,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 10:45:53" (3/3) ... [2022-11-20 10:45:53,485 INFO L112 eAbstractionObserver]: Analyzing ICFG bounded_buffer.i [2022-11-20 10:45:53,494 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-20 10:45:53,527 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-20 10:45:53,527 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-20 10:45:53,527 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-20 10:45:53,676 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-20 10:45:53,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 470 places, 514 transitions, 1050 flow [2022-11-20 10:45:54,154 INFO L130 PetriNetUnfolder]: 109/1127 cut-off events. [2022-11-20 10:45:54,154 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-20 10:45:54,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1147 conditions, 1127 events. 109/1127 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6908 event pairs, 0 based on Foata normal form. 0/964 useless extension candidates. Maximal degree in co-relation 590. Up to 16 conditions per place. [2022-11-20 10:45:54,185 INFO L82 GeneralOperation]: Start removeDead. Operand has 470 places, 514 transitions, 1050 flow [2022-11-20 10:45:54,206 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 470 places, 514 transitions, 1050 flow [2022-11-20 10:45:54,222 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:45:54,231 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;@26de3346, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:45:54,232 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-11-20 10:45:54,246 INFO L130 PetriNetUnfolder]: 7/94 cut-off events. [2022-11-20 10:45:54,246 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:45:54,246 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:45:54,247 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:54,250 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-20 10:45:54,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:54,257 INFO L85 PathProgramCache]: Analyzing trace with hash -670178589, now seen corresponding path program 1 times [2022-11-20 10:45:54,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:54,268 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588137390] [2022-11-20 10:45:54,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:54,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:54,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:54,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:54,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:54,771 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588137390] [2022-11-20 10:45:54,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588137390] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:54,772 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:54,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:45:54,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381845306] [2022-11-20 10:45:54,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:54,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:45:54,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:54,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:45:54,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:45:54,818 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 471 out of 514 [2022-11-20 10:45:54,827 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 470 places, 514 transitions, 1050 flow. Second operand has 5 states, 5 states have (on average 472.6) internal successors, (2363), 5 states have internal predecessors, (2363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:54,827 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:45:54,827 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 471 of 514 [2022-11-20 10:45:54,859 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:45:55,313 INFO L130 PetriNetUnfolder]: 74/1089 cut-off events. [2022-11-20 10:45:55,313 INFO L131 PetriNetUnfolder]: For 29/31 co-relation queries the response was YES. [2022-11-20 10:45:55,329 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1157 conditions, 1089 events. 74/1089 cut-off events. For 29/31 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6716 event pairs, 0 based on Foata normal form. 63/1022 useless extension candidates. Maximal degree in co-relation 583. Up to 39 conditions per place. [2022-11-20 10:45:55,339 INFO L137 encePairwiseOnDemand]: 497/514 looper letters, 25 selfloop transitions, 4 changer transitions 0/499 dead transitions. [2022-11-20 10:45:55,339 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 472 places, 499 transitions, 1078 flow [2022-11-20 10:45:55,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:45:55,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 10:45:55,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2402 transitions. [2022-11-20 10:45:55,365 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9346303501945525 [2022-11-20 10:45:55,366 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2402 transitions. [2022-11-20 10:45:55,366 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2402 transitions. [2022-11-20 10:45:55,371 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:45:55,374 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2402 transitions. [2022-11-20 10:45:55,383 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 480.4) internal successors, (2402), 5 states have internal predecessors, (2402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:55,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 514.0) internal successors, (3084), 6 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:55,398 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 514.0) internal successors, (3084), 6 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:55,400 INFO L175 Difference]: Start difference. First operand has 470 places, 514 transitions, 1050 flow. Second operand 5 states and 2402 transitions. [2022-11-20 10:45:55,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 472 places, 499 transitions, 1078 flow [2022-11-20 10:45:55,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 472 places, 499 transitions, 1078 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 10:45:55,422 INFO L231 Difference]: Finished difference. Result has 472 places, 499 transitions, 1028 flow [2022-11-20 10:45:55,425 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1020, PETRI_DIFFERENCE_MINUEND_PLACES=468, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=499, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=495, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1028, PETRI_PLACES=472, PETRI_TRANSITIONS=499} [2022-11-20 10:45:55,432 INFO L288 CegarLoopForPetriNet]: 470 programPoint places, 2 predicate places. [2022-11-20 10:45:55,432 INFO L495 AbstractCegarLoop]: Abstraction has has 472 places, 499 transitions, 1028 flow [2022-11-20 10:45:55,434 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 472.6) internal successors, (2363), 5 states have internal predecessors, (2363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:55,434 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:45:55,434 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:55,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-20 10:45:55,435 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-20 10:45:55,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:55,436 INFO L85 PathProgramCache]: Analyzing trace with hash -927132261, now seen corresponding path program 1 times [2022-11-20 10:45:55,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:55,437 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734564294] [2022-11-20 10:45:55,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:55,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:55,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:55,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:55,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:55,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734564294] [2022-11-20 10:45:55,555 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734564294] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:55,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:55,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:45:55,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360782036] [2022-11-20 10:45:55,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:55,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:45:55,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:55,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:45:55,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:45:55,561 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 481 out of 514 [2022-11-20 10:45:55,563 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 472 places, 499 transitions, 1028 flow. Second operand has 3 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:55,563 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:45:55,563 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 481 of 514 [2022-11-20 10:45:55,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:45:55,919 INFO L130 PetriNetUnfolder]: 71/1083 cut-off events. [2022-11-20 10:45:55,919 INFO L131 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2022-11-20 10:45:55,940 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1131 conditions, 1083 events. 71/1083 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 6625 event pairs, 0 based on Foata normal form. 0/956 useless extension candidates. Maximal degree in co-relation 1081. Up to 18 conditions per place. [2022-11-20 10:45:55,949 INFO L137 encePairwiseOnDemand]: 510/514 looper letters, 13 selfloop transitions, 1 changer transitions 0/493 dead transitions. [2022-11-20 10:45:55,949 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 471 places, 493 transitions, 1044 flow [2022-11-20 10:45:55,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:45:55,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:45:55,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1460 transitions. [2022-11-20 10:45:55,953 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9468223086900129 [2022-11-20 10:45:55,954 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1460 transitions. [2022-11-20 10:45:55,954 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1460 transitions. [2022-11-20 10:45:55,955 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:45:55,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1460 transitions. [2022-11-20 10:45:55,958 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 486.6666666666667) internal successors, (1460), 3 states have internal predecessors, (1460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:55,961 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 514.0) internal successors, (2056), 4 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:55,963 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 514.0) internal successors, (2056), 4 states have internal predecessors, (2056), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:55,963 INFO L175 Difference]: Start difference. First operand has 472 places, 499 transitions, 1028 flow. Second operand 3 states and 1460 transitions. [2022-11-20 10:45:55,963 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 471 places, 493 transitions, 1044 flow [2022-11-20 10:45:55,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 467 places, 493 transitions, 1036 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 10:45:55,973 INFO L231 Difference]: Finished difference. Result has 467 places, 493 transitions, 1010 flow [2022-11-20 10:45:55,974 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1008, PETRI_DIFFERENCE_MINUEND_PLACES=465, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=493, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=492, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1010, PETRI_PLACES=467, PETRI_TRANSITIONS=493} [2022-11-20 10:45:55,976 INFO L288 CegarLoopForPetriNet]: 470 programPoint places, -3 predicate places. [2022-11-20 10:45:55,977 INFO L495 AbstractCegarLoop]: Abstraction has has 467 places, 493 transitions, 1010 flow [2022-11-20 10:45:55,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 483.0) internal successors, (1449), 3 states have internal predecessors, (1449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:55,978 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:45:55,978 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:55,979 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-20 10:45:55,981 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-20 10:45:55,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:55,981 INFO L85 PathProgramCache]: Analyzing trace with hash 1158804262, now seen corresponding path program 1 times [2022-11-20 10:45:55,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:55,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578510806] [2022-11-20 10:45:55,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:55,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:56,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:56,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:45:56,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:56,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578510806] [2022-11-20 10:45:56,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578510806] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:56,267 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:56,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:45:56,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [514546938] [2022-11-20 10:45:56,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:56,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:45:56,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:56,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:45:56,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:45:56,272 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 460 out of 514 [2022-11-20 10:45:56,275 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 467 places, 493 transitions, 1010 flow. Second operand has 4 states, 4 states have (on average 462.5) internal successors, (1850), 4 states have internal predecessors, (1850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:56,275 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:45:56,275 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 460 of 514 [2022-11-20 10:45:56,275 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:45:56,489 INFO L130 PetriNetUnfolder]: 31/537 cut-off events. [2022-11-20 10:45:56,490 INFO L131 PetriNetUnfolder]: For 17/26 co-relation queries the response was YES. [2022-11-20 10:45:56,496 INFO L83 FinitePrefix]: Finished finitePrefix Result has 624 conditions, 537 events. 31/537 cut-off events. For 17/26 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1567 event pairs, 0 based on Foata normal form. 1/482 useless extension candidates. Maximal degree in co-relation 593. Up to 34 conditions per place. [2022-11-20 10:45:56,499 INFO L137 encePairwiseOnDemand]: 498/514 looper letters, 42 selfloop transitions, 10 changer transitions 33/507 dead transitions. [2022-11-20 10:45:56,499 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 469 places, 507 transitions, 1154 flow [2022-11-20 10:45:56,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:45:56,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 10:45:56,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2361 transitions. [2022-11-20 10:45:56,505 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9186770428015564 [2022-11-20 10:45:56,505 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2361 transitions. [2022-11-20 10:45:56,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2361 transitions. [2022-11-20 10:45:56,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:45:56,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2361 transitions. [2022-11-20 10:45:56,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 472.2) internal successors, (2361), 5 states have internal predecessors, (2361), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:56,518 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 514.0) internal successors, (3084), 6 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:56,520 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 514.0) internal successors, (3084), 6 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:56,520 INFO L175 Difference]: Start difference. First operand has 467 places, 493 transitions, 1010 flow. Second operand 5 states and 2361 transitions. [2022-11-20 10:45:56,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 469 places, 507 transitions, 1154 flow [2022-11-20 10:45:56,524 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 468 places, 507 transitions, 1153 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:45:56,530 INFO L231 Difference]: Finished difference. Result has 469 places, 461 transitions, 981 flow [2022-11-20 10:45:56,531 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=1005, PETRI_DIFFERENCE_MINUEND_PLACES=464, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=491, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=481, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=981, PETRI_PLACES=469, PETRI_TRANSITIONS=461} [2022-11-20 10:45:56,532 INFO L288 CegarLoopForPetriNet]: 470 programPoint places, -1 predicate places. [2022-11-20 10:45:56,532 INFO L495 AbstractCegarLoop]: Abstraction has has 469 places, 461 transitions, 981 flow [2022-11-20 10:45:56,534 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 462.5) internal successors, (1850), 4 states have internal predecessors, (1850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:56,534 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:45:56,534 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:56,535 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-20 10:45:56,535 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-20 10:45:56,535 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:56,535 INFO L85 PathProgramCache]: Analyzing trace with hash -441760334, now seen corresponding path program 1 times [2022-11-20 10:45:56,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:56,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510279563] [2022-11-20 10:45:56,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:56,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:56,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:45:56,793 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-11-20 10:45:56,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:45:56,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510279563] [2022-11-20 10:45:56,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510279563] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:45:56,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:45:56,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:45:56,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600401976] [2022-11-20 10:45:56,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:45:56,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:45:56,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:45:56,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:45:56,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:45:56,799 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 445 out of 514 [2022-11-20 10:45:56,802 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 469 places, 461 transitions, 981 flow. Second operand has 5 states, 5 states have (on average 448.8) internal successors, (2244), 5 states have internal predecessors, (2244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:56,802 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:45:56,802 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 445 of 514 [2022-11-20 10:45:56,803 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:45:58,016 INFO L130 PetriNetUnfolder]: 742/4722 cut-off events. [2022-11-20 10:45:58,017 INFO L131 PetriNetUnfolder]: For 81/96 co-relation queries the response was YES. [2022-11-20 10:45:58,044 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5659 conditions, 4722 events. 742/4722 cut-off events. For 81/96 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 46804 event pairs, 435 based on Foata normal form. 0/4263 useless extension candidates. Maximal degree in co-relation 5627. Up to 791 conditions per place. [2022-11-20 10:45:58,067 INFO L137 encePairwiseOnDemand]: 508/514 looper letters, 48 selfloop transitions, 5 changer transitions 0/459 dead transitions. [2022-11-20 10:45:58,067 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 445 places, 459 transitions, 1083 flow [2022-11-20 10:45:58,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:45:58,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 10:45:58,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 2279 transitions. [2022-11-20 10:45:58,074 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.8867704280155642 [2022-11-20 10:45:58,078 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 2279 transitions. [2022-11-20 10:45:58,078 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 2279 transitions. [2022-11-20 10:45:58,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:45:58,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 2279 transitions. [2022-11-20 10:45:58,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 455.8) internal successors, (2279), 5 states have internal predecessors, (2279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:58,090 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 514.0) internal successors, (3084), 6 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:58,093 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 514.0) internal successors, (3084), 6 states have internal predecessors, (3084), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:58,094 INFO L175 Difference]: Start difference. First operand has 469 places, 461 transitions, 981 flow. Second operand 5 states and 2279 transitions. [2022-11-20 10:45:58,094 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 445 places, 459 transitions, 1083 flow [2022-11-20 10:45:58,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 442 places, 459 transitions, 1071 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-11-20 10:45:58,115 INFO L231 Difference]: Finished difference. Result has 443 places, 459 transitions, 981 flow [2022-11-20 10:45:58,116 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=514, PETRI_DIFFERENCE_MINUEND_FLOW=963, PETRI_DIFFERENCE_MINUEND_PLACES=438, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=458, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=453, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=981, PETRI_PLACES=443, PETRI_TRANSITIONS=459} [2022-11-20 10:45:58,118 INFO L288 CegarLoopForPetriNet]: 470 programPoint places, -27 predicate places. [2022-11-20 10:45:58,118 INFO L495 AbstractCegarLoop]: Abstraction has has 443 places, 459 transitions, 981 flow [2022-11-20 10:45:58,120 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 448.8) internal successors, (2244), 5 states have internal predecessors, (2244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:45:58,120 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:45:58,120 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:45:58,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-20 10:45:58,121 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-20 10:45:58,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:45:58,122 INFO L85 PathProgramCache]: Analyzing trace with hash -1764296749, now seen corresponding path program 1 times [2022-11-20 10:45:58,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:45:58,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813111113] [2022-11-20 10:45:58,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:45:58,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:45:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:45:58,271 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-20 10:45:58,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-20 10:45:58,366 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-20 10:45:58,366 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-20 10:45:58,368 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2022-11-20 10:45:58,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2022-11-20 10:45:58,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2022-11-20 10:45:58,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2022-11-20 10:45:58,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2022-11-20 10:45:58,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2022-11-20 10:45:58,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2022-11-20 10:45:58,372 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2022-11-20 10:45:58,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2022-11-20 10:45:58,373 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2022-11-20 10:45:58,377 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2022-11-20 10:45:58,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2022-11-20 10:45:58,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2022-11-20 10:45:58,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2022-11-20 10:45:58,378 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2022-11-20 10:45:58,379 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2022-11-20 10:45:58,379 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2022-11-20 10:45:58,379 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 24 remaining) [2022-11-20 10:45:58,379 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2022-11-20 10:45:58,379 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2022-11-20 10:45:58,380 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2022-11-20 10:45:58,380 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2022-11-20 10:45:58,380 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2022-11-20 10:45:58,380 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2022-11-20 10:45:58,381 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-11-20 10:45:58,381 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2022-11-20 10:45:58,384 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-20 10:45:58,384 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-20 10:45:58,529 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-20 10:45:58,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 707 places, 776 transitions, 1600 flow [2022-11-20 10:46:00,379 INFO L130 PetriNetUnfolder]: 384/3722 cut-off events. [2022-11-20 10:46:00,379 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-11-20 10:46:00,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3819 conditions, 3722 events. 384/3722 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 30225 event pairs, 2 based on Foata normal form. 0/3163 useless extension candidates. Maximal degree in co-relation 2073. Up to 64 conditions per place. [2022-11-20 10:46:00,537 INFO L82 GeneralOperation]: Start removeDead. Operand has 707 places, 776 transitions, 1600 flow [2022-11-20 10:46:00,596 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 707 places, 776 transitions, 1600 flow [2022-11-20 10:46:00,597 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-20 10:46:00,599 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;@26de3346, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-20 10:46:00,600 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2022-11-20 10:46:00,608 INFO L130 PetriNetUnfolder]: 7/94 cut-off events. [2022-11-20 10:46:00,609 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-20 10:46:00,609 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:46:00,609 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:46:00,609 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-20 10:46:00,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:00,610 INFO L85 PathProgramCache]: Analyzing trace with hash -667717782, now seen corresponding path program 1 times [2022-11-20 10:46:00,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:00,615 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27855245] [2022-11-20 10:46:00,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:00,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:00,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:00,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:46:00,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:46:00,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27855245] [2022-11-20 10:46:00,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27855245] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:00,722 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:46:00,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:46:00,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384748623] [2022-11-20 10:46:00,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:00,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:46:00,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:46:00,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:46:00,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:46:00,730 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 721 out of 776 [2022-11-20 10:46:00,736 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 707 places, 776 transitions, 1600 flow. Second operand has 5 states, 5 states have (on average 722.6) internal successors, (3613), 5 states have internal predecessors, (3613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:46:00,736 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:46:00,736 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 721 of 776 [2022-11-20 10:46:00,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:46:02,596 INFO L130 PetriNetUnfolder]: 269/3600 cut-off events. [2022-11-20 10:46:02,596 INFO L131 PetriNetUnfolder]: For 215/221 co-relation queries the response was YES. [2022-11-20 10:46:02,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3848 conditions, 3600 events. 269/3600 cut-off events. For 215/221 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 30031 event pairs, 1 based on Foata normal form. 423/3573 useless extension candidates. Maximal degree in co-relation 2086. Up to 130 conditions per place. [2022-11-20 10:46:02,775 INFO L137 encePairwiseOnDemand]: 754/776 looper letters, 31 selfloop transitions, 4 changer transitions 0/755 dead transitions. [2022-11-20 10:46:02,775 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 708 places, 755 transitions, 1628 flow [2022-11-20 10:46:02,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:46:02,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 10:46:02,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3668 transitions. [2022-11-20 10:46:02,783 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.945360824742268 [2022-11-20 10:46:02,783 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3668 transitions. [2022-11-20 10:46:02,783 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3668 transitions. [2022-11-20 10:46:02,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:46:02,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3668 transitions. [2022-11-20 10:46:02,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 733.6) internal successors, (3668), 5 states have internal predecessors, (3668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:46:02,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 776.0) internal successors, (4656), 6 states have internal predecessors, (4656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:46:02,811 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 776.0) internal successors, (4656), 6 states have internal predecessors, (4656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:46:02,811 INFO L175 Difference]: Start difference. First operand has 707 places, 776 transitions, 1600 flow. Second operand 5 states and 3668 transitions. [2022-11-20 10:46:02,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 708 places, 755 transitions, 1628 flow [2022-11-20 10:46:02,824 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 708 places, 755 transitions, 1628 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-20 10:46:02,833 INFO L231 Difference]: Finished difference. Result has 708 places, 755 transitions, 1566 flow [2022-11-20 10:46:02,834 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=776, PETRI_DIFFERENCE_MINUEND_FLOW=1558, PETRI_DIFFERENCE_MINUEND_PLACES=704, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=755, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=751, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1566, PETRI_PLACES=708, PETRI_TRANSITIONS=755} [2022-11-20 10:46:02,837 INFO L288 CegarLoopForPetriNet]: 707 programPoint places, 1 predicate places. [2022-11-20 10:46:02,837 INFO L495 AbstractCegarLoop]: Abstraction has has 708 places, 755 transitions, 1566 flow [2022-11-20 10:46:02,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 722.6) internal successors, (3613), 5 states have internal predecessors, (3613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:46:02,841 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:46:02,841 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:46:02,841 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-11-20 10:46:02,841 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-20 10:46:02,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:02,843 INFO L85 PathProgramCache]: Analyzing trace with hash 562610338, now seen corresponding path program 1 times [2022-11-20 10:46:02,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:02,845 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76560468] [2022-11-20 10:46:02,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:02,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:02,889 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:46:02,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:46:02,889 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76560468] [2022-11-20 10:46:02,889 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [76560468] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:02,891 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:46:02,891 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:46:02,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030617768] [2022-11-20 10:46:02,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:02,892 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-20 10:46:02,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:46:02,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-20 10:46:02,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-20 10:46:02,894 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 731 out of 776 [2022-11-20 10:46:02,896 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 708 places, 755 transitions, 1566 flow. Second operand has 3 states, 3 states have (on average 733.0) internal successors, (2199), 3 states have internal predecessors, (2199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:46:02,896 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:46:02,896 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 731 of 776 [2022-11-20 10:46:02,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:46:04,422 INFO L130 PetriNetUnfolder]: 266/3594 cut-off events. [2022-11-20 10:46:04,422 INFO L131 PetriNetUnfolder]: For 212/212 co-relation queries the response was YES. [2022-11-20 10:46:04,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3792 conditions, 3594 events. 266/3594 cut-off events. For 212/212 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 29907 event pairs, 1 based on Foata normal form. 0/3147 useless extension candidates. Maximal degree in co-relation 3680. Up to 79 conditions per place. [2022-11-20 10:46:04,563 INFO L137 encePairwiseOnDemand]: 772/776 looper letters, 19 selfloop transitions, 1 changer transitions 0/749 dead transitions. [2022-11-20 10:46:04,564 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 707 places, 749 transitions, 1594 flow [2022-11-20 10:46:04,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-20 10:46:04,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-20 10:46:04,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2216 transitions. [2022-11-20 10:46:04,572 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9518900343642611 [2022-11-20 10:46:04,573 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 2216 transitions. [2022-11-20 10:46:04,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 2216 transitions. [2022-11-20 10:46:04,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:46:04,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 2216 transitions. [2022-11-20 10:46:04,586 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 738.6666666666666) internal successors, (2216), 3 states have internal predecessors, (2216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:46:04,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 776.0) internal successors, (3104), 4 states have internal predecessors, (3104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:46:04,597 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 776.0) internal successors, (3104), 4 states have internal predecessors, (3104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:46:04,597 INFO L175 Difference]: Start difference. First operand has 708 places, 755 transitions, 1566 flow. Second operand 3 states and 2216 transitions. [2022-11-20 10:46:04,598 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 707 places, 749 transitions, 1594 flow [2022-11-20 10:46:04,607 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 703 places, 749 transitions, 1586 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-11-20 10:46:04,617 INFO L231 Difference]: Finished difference. Result has 703 places, 749 transitions, 1548 flow [2022-11-20 10:46:04,619 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=776, PETRI_DIFFERENCE_MINUEND_FLOW=1546, PETRI_DIFFERENCE_MINUEND_PLACES=701, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=749, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=748, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1548, PETRI_PLACES=703, PETRI_TRANSITIONS=749} [2022-11-20 10:46:04,622 INFO L288 CegarLoopForPetriNet]: 707 programPoint places, -4 predicate places. [2022-11-20 10:46:04,622 INFO L495 AbstractCegarLoop]: Abstraction has has 703 places, 749 transitions, 1548 flow [2022-11-20 10:46:04,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 733.0) internal successors, (2199), 3 states have internal predecessors, (2199), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:46:04,623 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:46:04,624 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:46:04,624 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-11-20 10:46:04,626 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-20 10:46:04,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:04,627 INFO L85 PathProgramCache]: Analyzing trace with hash 1165693671, now seen corresponding path program 1 times [2022-11-20 10:46:04,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:04,628 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [546750448] [2022-11-20 10:46:04,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:04,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:04,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:04,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-20 10:46:04,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:46:04,747 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [546750448] [2022-11-20 10:46:04,747 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [546750448] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:04,747 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:46:04,747 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-20 10:46:04,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647913838] [2022-11-20 10:46:04,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:04,748 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-20 10:46:04,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:46:04,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-20 10:46:04,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-20 10:46:04,752 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 710 out of 776 [2022-11-20 10:46:04,755 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 703 places, 749 transitions, 1548 flow. Second operand has 4 states, 4 states have (on average 712.5) internal successors, (2850), 4 states have internal predecessors, (2850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:46:04,755 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:46:04,756 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 710 of 776 [2022-11-20 10:46:04,756 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-20 10:46:05,877 INFO L130 PetriNetUnfolder]: 207/2772 cut-off events. [2022-11-20 10:46:05,877 INFO L131 PetriNetUnfolder]: For 116/152 co-relation queries the response was YES. [2022-11-20 10:46:05,944 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3253 conditions, 2772 events. 207/2772 cut-off events. For 116/152 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 20496 event pairs, 0 based on Foata normal form. 4/2427 useless extension candidates. Maximal degree in co-relation 3220. Up to 226 conditions per place. [2022-11-20 10:46:05,970 INFO L137 encePairwiseOnDemand]: 760/776 looper letters, 68 selfloop transitions, 10 changer transitions 0/780 dead transitions. [2022-11-20 10:46:05,971 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 707 places, 780 transitions, 1790 flow [2022-11-20 10:46:05,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-11-20 10:46:05,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-11-20 10:46:05,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 3634 transitions. [2022-11-20 10:46:05,979 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.9365979381443299 [2022-11-20 10:46:05,979 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 3634 transitions. [2022-11-20 10:46:05,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 3634 transitions. [2022-11-20 10:46:05,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-20 10:46:05,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 3634 transitions. [2022-11-20 10:46:05,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 726.8) internal successors, (3634), 5 states have internal predecessors, (3634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:46:05,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 776.0) internal successors, (4656), 6 states have internal predecessors, (4656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:46:06,000 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 776.0) internal successors, (4656), 6 states have internal predecessors, (4656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:46:06,000 INFO L175 Difference]: Start difference. First operand has 703 places, 749 transitions, 1548 flow. Second operand 5 states and 3634 transitions. [2022-11-20 10:46:06,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 707 places, 780 transitions, 1790 flow [2022-11-20 10:46:06,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 706 places, 780 transitions, 1789 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-20 10:46:06,014 INFO L231 Difference]: Finished difference. Result has 709 places, 755 transitions, 1615 flow [2022-11-20 10:46:06,016 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=776, PETRI_DIFFERENCE_MINUEND_FLOW=1547, PETRI_DIFFERENCE_MINUEND_PLACES=702, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=749, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=739, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1615, PETRI_PLACES=709, PETRI_TRANSITIONS=755} [2022-11-20 10:46:06,016 INFO L288 CegarLoopForPetriNet]: 707 programPoint places, 2 predicate places. [2022-11-20 10:46:06,016 INFO L495 AbstractCegarLoop]: Abstraction has has 709 places, 755 transitions, 1615 flow [2022-11-20 10:46:06,017 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 712.5) internal successors, (2850), 4 states have internal predecessors, (2850), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:46:06,018 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-20 10:46:06,018 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-20 10:46:06,018 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-11-20 10:46:06,019 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2022-11-20 10:46:06,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-20 10:46:06,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1954026310, now seen corresponding path program 1 times [2022-11-20 10:46:06,019 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-20 10:46:06,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875389798] [2022-11-20 10:46:06,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-20 10:46:06,020 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-20 10:46:06,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-20 10:46:06,196 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-11-20 10:46:06,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-20 10:46:06,196 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875389798] [2022-11-20 10:46:06,197 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875389798] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-20 10:46:06,197 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-20 10:46:06,197 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-11-20 10:46:06,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937493398] [2022-11-20 10:46:06,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-20 10:46:06,198 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-11-20 10:46:06,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-20 10:46:06,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-11-20 10:46:06,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-11-20 10:46:06,202 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 681 out of 776 [2022-11-20 10:46:06,205 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 709 places, 755 transitions, 1615 flow. Second operand has 5 states, 5 states have (on average 685.0) internal successors, (3425), 5 states have internal predecessors, (3425), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-20 10:46:06,205 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-20 10:46:06,206 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 681 of 776 [2022-11-20 10:46:06,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand