./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 4e7fbc69 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_1f6f0565-4267-4bd2-a853-dfb9e39257f6/bin/uautomizer-QkZJyEgLgS/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6f0565-4267-4bd2-a853-dfb9e39257f6/bin/uautomizer-QkZJyEgLgS/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6f0565-4267-4bd2-a853-dfb9e39257f6/bin/uautomizer-QkZJyEgLgS/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6f0565-4267-4bd2-a853-dfb9e39257f6/bin/uautomizer-QkZJyEgLgS/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-complex/bounded_buffer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6f0565-4267-4bd2-a853-dfb9e39257f6/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6f0565-4267-4bd2-a853-dfb9e39257f6/bin/uautomizer-QkZJyEgLgS --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-4e7fbc6 [2022-11-23 03:46:42,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-23 03:46:42,092 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-23 03:46:42,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-23 03:46:42,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-23 03:46:42,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-23 03:46:42,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-23 03:46:42,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-23 03:46:42,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-23 03:46:42,133 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-23 03:46:42,134 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-23 03:46:42,135 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-23 03:46:42,135 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-23 03:46:42,136 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-23 03:46:42,137 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-23 03:46:42,139 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-23 03:46:42,140 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-23 03:46:42,141 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-23 03:46:42,142 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-23 03:46:42,144 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-23 03:46:42,145 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-23 03:46:42,147 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-23 03:46:42,148 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-23 03:46:42,149 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-23 03:46:42,152 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-23 03:46:42,153 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-23 03:46:42,153 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-23 03:46:42,154 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-23 03:46:42,155 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-23 03:46:42,156 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-23 03:46:42,156 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-23 03:46:42,157 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-23 03:46:42,158 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-23 03:46:42,159 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-23 03:46:42,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-23 03:46:42,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-23 03:46:42,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-23 03:46:42,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-23 03:46:42,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-23 03:46:42,163 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-23 03:46:42,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-23 03:46:42,166 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6f0565-4267-4bd2-a853-dfb9e39257f6/bin/uautomizer-QkZJyEgLgS/config/svcomp-Overflow-32bit-Automizer_Default.epf [2022-11-23 03:46:42,198 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-23 03:46:42,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-23 03:46:42,199 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-23 03:46:42,199 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-23 03:46:42,200 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-23 03:46:42,200 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-23 03:46:42,201 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-23 03:46:42,201 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-23 03:46:42,201 INFO L138 SettingsManager]: * Use SBE=true [2022-11-23 03:46:42,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-23 03:46:42,202 INFO L138 SettingsManager]: * sizeof long=4 [2022-11-23 03:46:42,202 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-23 03:46:42,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-23 03:46:42,208 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-11-23 03:46:42,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-23 03:46:42,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-23 03:46:42,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-23 03:46:42,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-23 03:46:42,209 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-23 03:46:42,209 INFO L138 SettingsManager]: * sizeof long double=12 [2022-11-23 03:46:42,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-23 03:46:42,210 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-23 03:46:42,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-23 03:46:42,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-23 03:46:42,211 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-23 03:46:42,211 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-23 03:46:42,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:46:42,211 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-23 03:46:42,212 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-23 03:46:42,212 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-23 03:46:42,212 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-23 03:46:42,213 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-23 03:46:42,213 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-23 03:46:42,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-23 03:46:42,213 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-23 03:46:42,214 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-23 03:46:42,215 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6f0565-4267-4bd2-a853-dfb9e39257f6/bin/uautomizer-QkZJyEgLgS/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6f0565-4267-4bd2-a853-dfb9e39257f6/bin/uautomizer-QkZJyEgLgS Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 [2022-11-23 03:46:42,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-23 03:46:42,522 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-23 03:46:42,524 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-23 03:46:42,526 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-23 03:46:42,526 INFO L275 PluginConnector]: CDTParser initialized [2022-11-23 03:46:42,527 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6f0565-4267-4bd2-a853-dfb9e39257f6/bin/uautomizer-QkZJyEgLgS/../../sv-benchmarks/c/pthread-complex/bounded_buffer.i [2022-11-23 03:46:45,594 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-23 03:46:45,897 INFO L351 CDTParser]: Found 1 translation units. [2022-11-23 03:46:45,898 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6f0565-4267-4bd2-a853-dfb9e39257f6/sv-benchmarks/c/pthread-complex/bounded_buffer.i [2022-11-23 03:46:45,925 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6f0565-4267-4bd2-a853-dfb9e39257f6/bin/uautomizer-QkZJyEgLgS/data/01cc2e6c3/d5d74e22632d41638228d58404dda5f7/FLAG802dce090 [2022-11-23 03:46:45,946 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6f0565-4267-4bd2-a853-dfb9e39257f6/bin/uautomizer-QkZJyEgLgS/data/01cc2e6c3/d5d74e22632d41638228d58404dda5f7 [2022-11-23 03:46:45,953 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-23 03:46:45,956 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-23 03:46:45,957 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-23 03:46:45,957 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-23 03:46:45,961 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-23 03:46:45,962 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:46:45" (1/1) ... [2022-11-23 03:46:45,963 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@16139990 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:45, skipping insertion in model container [2022-11-23 03:46:45,963 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:46:45" (1/1) ... [2022-11-23 03:46:45,972 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-23 03:46:46,033 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-23 03:46:46,780 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_1f6f0565-4267-4bd2-a853-dfb9e39257f6/sv-benchmarks/c/pthread-complex/bounded_buffer.i[70002,70015] [2022-11-23 03:46:46,810 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:46:46,822 INFO L203 MainTranslator]: Completed pre-run [2022-11-23 03:46:46,885 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_1f6f0565-4267-4bd2-a853-dfb9e39257f6/sv-benchmarks/c/pthread-complex/bounded_buffer.i[70002,70015] [2022-11-23 03:46:46,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-23 03:46:47,052 INFO L208 MainTranslator]: Completed translation [2022-11-23 03:46:47,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:47 WrapperNode [2022-11-23 03:46:47,052 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-23 03:46:47,054 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-23 03:46:47,054 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-23 03:46:47,054 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-23 03:46:47,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:47" (1/1) ... [2022-11-23 03:46:47,099 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:47" (1/1) ... [2022-11-23 03:46:47,135 INFO L138 Inliner]: procedures = 428, calls = 126, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 476 [2022-11-23 03:46:47,136 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-23 03:46:47,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-23 03:46:47,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-23 03:46:47,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-23 03:46:47,153 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:47" (1/1) ... [2022-11-23 03:46:47,154 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:47" (1/1) ... [2022-11-23 03:46:47,159 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:47" (1/1) ... [2022-11-23 03:46:47,159 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:47" (1/1) ... [2022-11-23 03:46:47,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:47" (1/1) ... [2022-11-23 03:46:47,212 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:47" (1/1) ... [2022-11-23 03:46:47,214 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:47" (1/1) ... [2022-11-23 03:46:47,217 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:47" (1/1) ... [2022-11-23 03:46:47,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-23 03:46:47,222 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-23 03:46:47,222 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-23 03:46:47,222 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-23 03:46:47,223 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:47" (1/1) ... [2022-11-23 03:46:47,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-23 03:46:47,251 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6f0565-4267-4bd2-a853-dfb9e39257f6/bin/uautomizer-QkZJyEgLgS/z3 [2022-11-23 03:46:47,272 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6f0565-4267-4bd2-a853-dfb9e39257f6/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-23 03:46:47,296 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1f6f0565-4267-4bd2-a853-dfb9e39257f6/bin/uautomizer-QkZJyEgLgS/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-23 03:46:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure producer_routine [2022-11-23 03:46:47,313 INFO L138 BoogieDeclarations]: Found implementation of procedure producer_routine [2022-11-23 03:46:47,313 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-23 03:46:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-23 03:46:47,315 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-11-23 03:46:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-11-23 03:46:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2022-11-23 03:46:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-23 03:46:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-11-23 03:46:47,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-23 03:46:47,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-23 03:46:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-23 03:46:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-11-23 03:46:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure consumer_routine [2022-11-23 03:46:47,317 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer_routine [2022-11-23 03:46:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-23 03:46:47,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-23 03:46:47,319 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-11-23 03:46:47,607 INFO L235 CfgBuilder]: Building ICFG [2022-11-23 03:46:47,609 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-23 03:46:48,555 INFO L276 CfgBuilder]: Performing block encoding [2022-11-23 03:46:48,569 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-23 03:46:48,573 INFO L300 CfgBuilder]: Removed 11 assume(true) statements. [2022-11-23 03:46:48,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:46:48 BoogieIcfgContainer [2022-11-23 03:46:48,577 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-23 03:46:48,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-23 03:46:48,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-23 03:46:48,585 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-23 03:46:48,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:46:45" (1/3) ... [2022-11-23 03:46:48,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7531adfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:46:48, skipping insertion in model container [2022-11-23 03:46:48,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:46:47" (2/3) ... [2022-11-23 03:46:48,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7531adfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:46:48, skipping insertion in model container [2022-11-23 03:46:48,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:46:48" (3/3) ... [2022-11-23 03:46:48,593 INFO L112 eAbstractionObserver]: Analyzing ICFG bounded_buffer.i [2022-11-23 03:46:48,603 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-11-23 03:46:48,611 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-23 03:46:48,612 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-11-23 03:46:48,612 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-11-23 03:46:48,800 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-11-23 03:46:48,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 470 places, 514 transitions, 1050 flow [2022-11-23 03:46:49,281 INFO L130 PetriNetUnfolder]: 109/1127 cut-off events. [2022-11-23 03:46:49,282 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-23 03:46:49,311 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. [2022-11-23 03:46:49,311 INFO L82 GeneralOperation]: Start removeDead. Operand has 470 places, 514 transitions, 1050 flow [2022-11-23 03:46:49,339 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 470 places, 514 transitions, 1050 flow [2022-11-23 03:46:49,343 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 03:46:49,365 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 470 places, 514 transitions, 1050 flow [2022-11-23 03:46:49,368 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 470 places, 514 transitions, 1050 flow [2022-11-23 03:46:49,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 470 places, 514 transitions, 1050 flow [2022-11-23 03:46:49,661 INFO L130 PetriNetUnfolder]: 109/1127 cut-off events. [2022-11-23 03:46:49,661 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-11-23 03:46:49,681 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. [2022-11-23 03:46:49,748 INFO L119 LiptonReduction]: Number of co-enabled transitions 124104 [2022-11-23 03:47:39,148 WARN L233 SmtUtils]: Spent 28.05s on a formula simplification. DAG size of input: 183 DAG size of output: 181 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:47:56,819 WARN L233 SmtUtils]: Spent 17.65s on a formula simplification that was a NOOP. DAG size: 179 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:48:33,204 WARN L233 SmtUtils]: Spent 36.38s on a formula simplification. DAG size of input: 183 DAG size of output: 181 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:48:53,382 WARN L233 SmtUtils]: Spent 20.18s on a formula simplification that was a NOOP. DAG size: 179 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:49:17,551 WARN L233 SmtUtils]: Spent 22.51s on a formula simplification that was a NOOP. DAG size: 183 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:49:34,135 WARN L233 SmtUtils]: Spent 16.58s on a formula simplification that was a NOOP. DAG size: 183 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:49:49,539 WARN L233 SmtUtils]: Spent 15.40s on a formula simplification that was a NOOP. DAG size: 183 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:50:04,501 WARN L233 SmtUtils]: Spent 14.96s on a formula simplification that was a NOOP. DAG size: 183 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:51:25,806 WARN L233 SmtUtils]: Spent 1.35m on a formula simplification. DAG size of input: 306 DAG size of output: 272 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:51:54,340 WARN L233 SmtUtils]: Spent 28.53s on a formula simplification that was a NOOP. DAG size: 263 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:53:47,758 WARN L233 SmtUtils]: Spent 1.89m on a formula simplification. DAG size of input: 316 DAG size of output: 276 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:54:19,619 WARN L233 SmtUtils]: Spent 31.86s on a formula simplification that was a NOOP. DAG size: 266 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:54:19,735 INFO L134 LiptonReduction]: Checked pairs total: 334625 [2022-11-23 03:54:19,735 INFO L136 LiptonReduction]: Total number of compositions: 524 [2022-11-23 03:54:19,757 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-23 03:54:19,764 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;@2547522b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-23 03:54:19,765 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-11-23 03:54:19,773 INFO L130 PetriNetUnfolder]: 0/15 cut-off events. [2022-11-23 03:54:19,774 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-11-23 03:54:19,774 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:54:19,775 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-23 03:54:19,781 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)] === [2022-11-23 03:54:19,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:54:19,786 INFO L85 PathProgramCache]: Analyzing trace with hash -239712999, now seen corresponding path program 1 times [2022-11-23 03:54:19,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:54:19,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483546555] [2022-11-23 03:54:19,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:54:19,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:54:20,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:54:20,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:54:20,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:54:20,360 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483546555] [2022-11-23 03:54:20,360 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483546555] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:54:20,361 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:54:20,361 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-23 03:54:20,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063887622] [2022-11-23 03:54:20,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:54:20,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:54:20,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:54:20,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:54:20,402 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:54:20,496 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 481 out of 1038 [2022-11-23 03:54:20,503 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 155 transitions, 332 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) [2022-11-23 03:54:20,503 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:54:20,504 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 481 of 1038 [2022-11-23 03:54:20,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:54:23,889 INFO L130 PetriNetUnfolder]: 13235/20425 cut-off events. [2022-11-23 03:54:23,889 INFO L131 PetriNetUnfolder]: For 135/135 co-relation queries the response was YES. [2022-11-23 03:54:23,915 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40548 conditions, 20425 events. 13235/20425 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 580. Compared 135353 event pairs, 3990 based on Foata normal form. 411/16010 useless extension candidates. Maximal degree in co-relation 39636. Up to 11261 conditions per place. [2022-11-23 03:54:24,000 INFO L137 encePairwiseOnDemand]: 1016/1038 looper letters, 188 selfloop transitions, 8 changer transitions 12/224 dead transitions. [2022-11-23 03:54:24,001 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 224 transitions, 890 flow [2022-11-23 03:54:24,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:54:24,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:54:24,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1670 transitions. [2022-11-23 03:54:24,020 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5362877328195247 [2022-11-23 03:54:24,021 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1670 transitions. [2022-11-23 03:54:24,022 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1670 transitions. [2022-11-23 03:54:24,025 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:54:24,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1670 transitions. [2022-11-23 03:54:24,035 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 556.6666666666666) internal successors, (1670), 3 states have internal predecessors, (1670), 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) [2022-11-23 03:54:24,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1038.0) internal successors, (4152), 4 states have internal predecessors, (4152), 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) [2022-11-23 03:54:24,049 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1038.0) internal successors, (4152), 4 states have internal predecessors, (4152), 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) [2022-11-23 03:54:24,051 INFO L175 Difference]: Start difference. First operand has 130 places, 155 transitions, 332 flow. Second operand 3 states and 1670 transitions. [2022-11-23 03:54:24,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 224 transitions, 890 flow [2022-11-23 03:54:24,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 224 transitions, 890 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-11-23 03:54:24,066 INFO L231 Difference]: Finished difference. Result has 127 places, 134 transitions, 320 flow [2022-11-23 03:54:24,068 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1038, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=320, PETRI_PLACES=127, PETRI_TRANSITIONS=134} [2022-11-23 03:54:24,071 INFO L288 CegarLoopForPetriNet]: 130 programPoint places, -3 predicate places. [2022-11-23 03:54:24,071 INFO L495 AbstractCegarLoop]: Abstraction has has 127 places, 134 transitions, 320 flow [2022-11-23 03:54:24,073 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) [2022-11-23 03:54:24,073 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:54:24,073 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-23 03:54:24,073 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-23 03:54:24,074 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting producer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 03:54:24,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:54:24,074 INFO L85 PathProgramCache]: Analyzing trace with hash 1243157037, now seen corresponding path program 1 times [2022-11-23 03:54:24,075 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:54:24,075 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254638312] [2022-11-23 03:54:24,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:54:24,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:54:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-23 03:54:24,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-23 03:54:24,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-23 03:54:24,177 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254638312] [2022-11-23 03:54:24,178 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254638312] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-23 03:54:24,178 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-23 03:54:24,178 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-23 03:54:24,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525528703] [2022-11-23 03:54:24,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-23 03:54:24,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-23 03:54:24,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-23 03:54:24,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-23 03:54:24,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-23 03:54:24,192 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 491 out of 1038 [2022-11-23 03:54:24,194 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 134 transitions, 320 flow. Second operand has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 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) [2022-11-23 03:54:24,194 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-11-23 03:54:24,194 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 491 of 1038 [2022-11-23 03:54:24,195 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-11-23 03:54:30,036 INFO L130 PetriNetUnfolder]: 24404/37525 cut-off events. [2022-11-23 03:54:30,036 INFO L131 PetriNetUnfolder]: For 6290/6290 co-relation queries the response was YES. [2022-11-23 03:54:30,084 INFO L83 FinitePrefix]: Finished finitePrefix Result has 77589 conditions, 37525 events. 24404/37525 cut-off events. For 6290/6290 co-relation queries the response was YES. Maximal size of possible extension queue 888. Compared 260298 event pairs, 10171 based on Foata normal form. 0/30723 useless extension candidates. Maximal degree in co-relation 76639. Up to 19195 conditions per place. [2022-11-23 03:54:30,391 INFO L137 encePairwiseOnDemand]: 1033/1038 looper letters, 197 selfloop transitions, 2 changer transitions 0/215 dead transitions. [2022-11-23 03:54:30,391 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 215 transitions, 904 flow [2022-11-23 03:54:30,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-23 03:54:30,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-11-23 03:54:30,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1675 transitions. [2022-11-23 03:54:30,397 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.537893384714194 [2022-11-23 03:54:30,397 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1675 transitions. [2022-11-23 03:54:30,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1675 transitions. [2022-11-23 03:54:30,399 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-11-23 03:54:30,399 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1675 transitions. [2022-11-23 03:54:30,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 558.3333333333334) internal successors, (1675), 3 states have internal predecessors, (1675), 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) [2022-11-23 03:54:30,412 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 1038.0) internal successors, (4152), 4 states have internal predecessors, (4152), 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) [2022-11-23 03:54:30,415 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 1038.0) internal successors, (4152), 4 states have internal predecessors, (4152), 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) [2022-11-23 03:54:30,415 INFO L175 Difference]: Start difference. First operand has 127 places, 134 transitions, 320 flow. Second operand 3 states and 1675 transitions. [2022-11-23 03:54:30,415 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 215 transitions, 904 flow [2022-11-23 03:54:30,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 215 transitions, 890 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-11-23 03:54:30,429 INFO L231 Difference]: Finished difference. Result has 122 places, 135 transitions, 328 flow [2022-11-23 03:54:30,430 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=1038, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=328, PETRI_PLACES=122, PETRI_TRANSITIONS=135} [2022-11-23 03:54:30,430 INFO L288 CegarLoopForPetriNet]: 130 programPoint places, -8 predicate places. [2022-11-23 03:54:30,431 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 135 transitions, 328 flow [2022-11-23 03:54:30,432 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 494.0) internal successors, (1482), 3 states have internal predecessors, (1482), 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) [2022-11-23 03:54:30,432 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-11-23 03:54:30,432 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-11-23 03:54:30,433 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-23 03:54:30,433 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-11-23 03:54:30,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-23 03:54:30,434 INFO L85 PathProgramCache]: Analyzing trace with hash -97350772, now seen corresponding path program 1 times [2022-11-23 03:54:30,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-23 03:54:30,436 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053184299] [2022-11-23 03:54:30,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-23 03:54:30,436 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-23 03:54:30,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:54:30,519 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-23 03:54:30,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-23 03:54:30,613 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-23 03:54:30,614 INFO L359 BasicCegarLoop]: Counterexample is feasible [2022-11-23 03:54:30,615 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2022-11-23 03:54:30,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2022-11-23 03:54:30,617 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2022-11-23 03:54:30,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2022-11-23 03:54:30,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2022-11-23 03:54:30,618 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2022-11-23 03:54:30,623 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2022-11-23 03:54:30,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2022-11-23 03:54:30,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2022-11-23 03:54:30,624 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2022-11-23 03:54:30,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2022-11-23 03:54:30,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2022-11-23 03:54:30,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2022-11-23 03:54:30,625 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2022-11-23 03:54:30,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2022-11-23 03:54:30,626 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2022-11-23 03:54:30,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2022-11-23 03:54:30,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 24 remaining) [2022-11-23 03:54:30,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2022-11-23 03:54:30,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2022-11-23 03:54:30,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2022-11-23 03:54:30,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2022-11-23 03:54:30,628 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2022-11-23 03:54:30,629 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2022-11-23 03:54:30,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-23 03:54:30,629 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-11-23 03:54:30,632 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-11-23 03:54:30,632 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-11-23 03:54:30,755 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2022-11-23 03:54:30,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 707 places, 776 transitions, 1600 flow [2022-11-23 03:54:32,529 INFO L130 PetriNetUnfolder]: 384/3722 cut-off events. [2022-11-23 03:54:32,529 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-11-23 03:54:32,604 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. [2022-11-23 03:54:32,604 INFO L82 GeneralOperation]: Start removeDead. Operand has 707 places, 776 transitions, 1600 flow [2022-11-23 03:54:32,795 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 707 places, 776 transitions, 1600 flow [2022-11-23 03:54:32,795 INFO L115 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-11-23 03:54:32,796 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 707 places, 776 transitions, 1600 flow [2022-11-23 03:54:32,796 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 707 places, 776 transitions, 1600 flow [2022-11-23 03:54:32,796 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 707 places, 776 transitions, 1600 flow [2022-11-23 03:54:34,142 INFO L130 PetriNetUnfolder]: 384/3722 cut-off events. [2022-11-23 03:54:34,143 INFO L131 PetriNetUnfolder]: For 72/72 co-relation queries the response was YES. [2022-11-23 03:54:34,278 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. [2022-11-23 03:54:34,653 INFO L119 LiptonReduction]: Number of co-enabled transitions 384376 [2022-11-23 03:57:00,062 WARN L233 SmtUtils]: Spent 39.30s on a formula simplification that was a NOOP. DAG size: 194 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:57:33,240 WARN L233 SmtUtils]: Spent 33.18s on a formula simplification that was a NOOP. DAG size: 190 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:58:08,217 WARN L233 SmtUtils]: Spent 34.97s on a formula simplification that was a NOOP. DAG size: 194 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:58:40,425 WARN L233 SmtUtils]: Spent 32.21s on a formula simplification that was a NOOP. DAG size: 190 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 03:59:42,389 WARN L233 SmtUtils]: Spent 1.01m on a formula simplification that was a NOOP. DAG size: 273 (called from [L 278] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-11-23 04:00:41,407 WARN L233 SmtUtils]: Spent 59.01s on a formula simplification that was a NOOP. DAG size: 263 (called from [L 301] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition)