./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 30e01a73 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_42ae2ea4-e04c-45e7-84dd-188758d08b8c/bin/uautomizer-verify-zZY32mL2XJ/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ae2ea4-e04c-45e7-84dd-188758d08b8c/bin/uautomizer-verify-zZY32mL2XJ/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ae2ea4-e04c-45e7-84dd-188758d08b8c/bin/uautomizer-verify-zZY32mL2XJ/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ae2ea4-e04c-45e7-84dd-188758d08b8c/bin/uautomizer-verify-zZY32mL2XJ/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-complex/bounded_buffer.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ae2ea4-e04c-45e7-84dd-188758d08b8c/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ae2ea4-e04c-45e7-84dd-188758d08b8c/bin/uautomizer-verify-zZY32mL2XJ --witnessprinter.witness.filename witness --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 --- This is Ultimate 0.2.3-dev-30e01a7 [2023-11-23 22:28:55,539 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 22:28:55,613 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ae2ea4-e04c-45e7-84dd-188758d08b8c/bin/uautomizer-verify-zZY32mL2XJ/config/svcomp-Overflow-32bit-Automizer_Default.epf [2023-11-23 22:28:55,619 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 22:28:55,620 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 22:28:55,650 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 22:28:55,650 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 22:28:55,651 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 22:28:55,652 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 22:28:55,653 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 22:28:55,653 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 22:28:55,654 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 22:28:55,655 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 22:28:55,655 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 22:28:55,656 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 22:28:55,656 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 22:28:55,657 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 22:28:55,658 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-23 22:28:55,658 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 22:28:55,659 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-23 22:28:55,659 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 22:28:55,660 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 22:28:55,660 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 22:28:55,661 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 22:28:55,661 INFO L153 SettingsManager]: * Check absence of signed integer overflows=true [2023-11-23 22:28:55,661 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-23 22:28:55,662 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-23 22:28:55,662 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 22:28:55,663 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 22:28:55,663 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 22:28:55,664 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 22:28:55,664 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 22:28:55,665 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 22:28:55,665 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:28:55,666 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 22:28:55,666 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 22:28:55,667 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 22:28:55,667 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 22:28:55,668 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 22:28:55,668 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 22:28:55,668 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 22:28:55,669 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 22:28:55,670 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 22:28:55,670 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 22:28:55,670 INFO L153 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_42ae2ea4-e04c-45e7-84dd-188758d08b8c/bin/uautomizer-verify-zZY32mL2XJ/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ae2ea4-e04c-45e7-84dd-188758d08b8c/bin/uautomizer-verify-zZY32mL2XJ Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6780d9b269575eab8bb01b5a192a21fa771f6fcc4c495cab5abe1df10d7681d5 [2023-11-23 22:28:55,930 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 22:28:55,953 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 22:28:55,957 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 22:28:55,958 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 22:28:55,959 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 22:28:55,961 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ae2ea4-e04c-45e7-84dd-188758d08b8c/bin/uautomizer-verify-zZY32mL2XJ/../../sv-benchmarks/c/pthread-complex/bounded_buffer.i [2023-11-23 22:28:59,025 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 22:28:59,377 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 22:28:59,380 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ae2ea4-e04c-45e7-84dd-188758d08b8c/sv-benchmarks/c/pthread-complex/bounded_buffer.i [2023-11-23 22:28:59,416 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ae2ea4-e04c-45e7-84dd-188758d08b8c/bin/uautomizer-verify-zZY32mL2XJ/data/4a83fa5f9/446d438e335c4970891c28794cc65453/FLAGb6bf572b8 [2023-11-23 22:28:59,435 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ae2ea4-e04c-45e7-84dd-188758d08b8c/bin/uautomizer-verify-zZY32mL2XJ/data/4a83fa5f9/446d438e335c4970891c28794cc65453 [2023-11-23 22:28:59,442 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 22:28:59,445 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 22:28:59,448 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 22:28:59,448 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 22:28:59,453 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 22:28:59,457 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:28:59" (1/1) ... [2023-11-23 22:28:59,458 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4118c23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:28:59, skipping insertion in model container [2023-11-23 22:28:59,459 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 10:28:59" (1/1) ... [2023-11-23 22:28:59,528 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 22:29:00,495 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:29:00,512 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 22:29:00,646 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 22:29:00,814 WARN L675 CHandler]: The function fflush is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 22:29:00,822 INFO L206 MainTranslator]: Completed translation [2023-11-23 22:29:00,822 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:00 WrapperNode [2023-11-23 22:29:00,823 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 22:29:00,824 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 22:29:00,824 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 22:29:00,824 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 22:29:00,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:00" (1/1) ... [2023-11-23 22:29:00,876 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:00" (1/1) ... [2023-11-23 22:29:00,948 INFO L138 Inliner]: procedures = 429, calls = 137, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 497 [2023-11-23 22:29:00,954 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 22:29:00,954 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 22:29:00,955 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 22:29:00,955 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 22:29:00,966 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:00" (1/1) ... [2023-11-23 22:29:00,967 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:00" (1/1) ... [2023-11-23 22:29:00,980 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:00" (1/1) ... [2023-11-23 22:29:01,020 INFO L189 HeapSplitter]: Split 77 memory accesses to 12 slices as follows [2, 2, 1, 1, 17, 1, 3, 1, 4, 17, 24, 4] [2023-11-23 22:29:01,021 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:00" (1/1) ... [2023-11-23 22:29:01,021 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:00" (1/1) ... [2023-11-23 22:29:01,059 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:00" (1/1) ... [2023-11-23 22:29:01,065 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:00" (1/1) ... [2023-11-23 22:29:01,070 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:00" (1/1) ... [2023-11-23 22:29:01,075 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:00" (1/1) ... [2023-11-23 22:29:01,084 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 22:29:01,085 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 22:29:01,085 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 22:29:01,086 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 22:29:01,086 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:00" (1/1) ... [2023-11-23 22:29:01,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 22:29:01,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ae2ea4-e04c-45e7-84dd-188758d08b8c/bin/uautomizer-verify-zZY32mL2XJ/z3 [2023-11-23 22:29:01,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ae2ea4-e04c-45e7-84dd-188758d08b8c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 22:29:01,177 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ae2ea4-e04c-45e7-84dd-188758d08b8c/bin/uautomizer-verify-zZY32mL2XJ/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 22:29:01,200 INFO L130 BoogieDeclarations]: Found specification of procedure producer_routine [2023-11-23 22:29:01,200 INFO L138 BoogieDeclarations]: Found implementation of procedure producer_routine [2023-11-23 22:29:01,200 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 22:29:01,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 22:29:01,200 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 22:29:01,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 22:29:01,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 22:29:01,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 22:29:01,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-23 22:29:01,203 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-23 22:29:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-23 22:29:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-23 22:29:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2023-11-23 22:29:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2023-11-23 22:29:01,204 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2023-11-23 22:29:01,205 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-23 22:29:01,205 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 22:29:01,205 INFO L130 BoogieDeclarations]: Found specification of procedure fflush [2023-11-23 22:29:01,206 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 22:29:01,206 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 22:29:01,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 22:29:01,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 22:29:01,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-23 22:29:01,207 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-23 22:29:01,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-23 22:29:01,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-23 22:29:01,208 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-23 22:29:01,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-23 22:29:01,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2023-11-23 22:29:01,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2023-11-23 22:29:01,210 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2023-11-23 22:29:01,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 22:29:01,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 22:29:01,210 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 22:29:01,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 22:29:01,211 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 22:29:01,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 22:29:01,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-23 22:29:01,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-23 22:29:01,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-23 22:29:01,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-23 22:29:01,212 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-23 22:29:01,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-23 22:29:01,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2023-11-23 22:29:01,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2023-11-23 22:29:01,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2023-11-23 22:29:01,213 INFO L130 BoogieDeclarations]: Found specification of procedure consumer_routine [2023-11-23 22:29:01,213 INFO L138 BoogieDeclarations]: Found implementation of procedure consumer_routine [2023-11-23 22:29:01,214 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-23 22:29:01,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 22:29:01,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 22:29:01,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 22:29:01,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 22:29:01,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 22:29:01,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-23 22:29:01,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-23 22:29:01,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-23 22:29:01,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-23 22:29:01,215 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2023-11-23 22:29:01,216 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2023-11-23 22:29:01,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2023-11-23 22:29:01,217 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 22:29:01,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 22:29:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 22:29:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 22:29:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 22:29:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-23 22:29:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-23 22:29:01,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-23 22:29:01,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-23 22:29:01,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2023-11-23 22:29:01,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2023-11-23 22:29:01,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2023-11-23 22:29:01,222 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-23 22:29:01,527 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 22:29:01,529 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 22:29:02,375 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 22:29:02,991 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 22:29:02,992 INFO L309 CfgBuilder]: Removed 11 assume(true) statements. [2023-11-23 22:29:02,992 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:29:02 BoogieIcfgContainer [2023-11-23 22:29:02,992 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 22:29:02,994 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 22:29:02,995 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 22:29:02,998 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 22:29:02,998 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 10:28:59" (1/3) ... [2023-11-23 22:29:02,999 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5404137f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:29:02, skipping insertion in model container [2023-11-23 22:29:03,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 10:29:00" (2/3) ... [2023-11-23 22:29:03,037 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5404137f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 10:29:03, skipping insertion in model container [2023-11-23 22:29:03,037 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 10:29:02" (3/3) ... [2023-11-23 22:29:03,039 INFO L112 eAbstractionObserver]: Analyzing ICFG bounded_buffer.i [2023-11-23 22:29:03,048 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-23 22:29:03,059 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 22:29:03,059 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-11-23 22:29:03,059 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-23 22:29:03,188 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-23 22:29:03,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 114 places, 137 transitions, 294 flow [2023-11-23 22:29:03,366 INFO L124 PetriNetUnfolderBase]: 69/337 cut-off events. [2023-11-23 22:29:03,367 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2023-11-23 22:29:03,380 INFO L83 FinitePrefix]: Finished finitePrefix Result has 354 conditions, 337 events. 69/337 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1725 event pairs, 0 based on Foata normal form. 0/214 useless extension candidates. Maximal degree in co-relation 181. Up to 16 conditions per place. [2023-11-23 22:29:03,381 INFO L82 GeneralOperation]: Start removeDead. Operand has 114 places, 137 transitions, 294 flow [2023-11-23 22:29:03,393 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 114 places, 137 transitions, 294 flow [2023-11-23 22:29:03,412 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:29:03,421 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=LoopHeads, 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;@1ecd3221, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:29:03,421 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2023-11-23 22:29:03,436 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 22:29:03,436 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2023-11-23 22:29:03,436 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 22:29:03,436 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:29:03,437 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-23 22:29:03,438 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-23 22:29:03,444 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:29:03,444 INFO L85 PathProgramCache]: Analyzing trace with hash 1161308669, now seen corresponding path program 1 times [2023-11-23 22:29:03,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:29:03,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [866053629] [2023-11-23 22:29:03,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:29:03,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:29:03,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:29:04,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:29:04,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:29:04,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [866053629] [2023-11-23 22:29:04,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [866053629] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:29:04,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:29:04,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:29:04,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [272083434] [2023-11-23 22:29:04,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:29:04,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:29:04,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:29:04,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:29:04,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:29:04,190 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 137 [2023-11-23 22:29:04,193 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 137 transitions, 294 flow. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 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) [2023-11-23 22:29:04,193 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:29:04,193 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 137 [2023-11-23 22:29:04,194 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:29:06,956 INFO L124 PetriNetUnfolderBase]: 6520/10512 cut-off events. [2023-11-23 22:29:06,957 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2023-11-23 22:29:06,975 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20048 conditions, 10512 events. 6520/10512 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 326. Compared 64130 event pairs, 3270 based on Foata normal form. 23/8356 useless extension candidates. Maximal degree in co-relation 19262. Up to 6081 conditions per place. [2023-11-23 22:29:07,043 INFO L140 encePairwiseOnDemand]: 120/137 looper letters, 157 selfloop transitions, 9 changer transitions 9/210 dead transitions. [2023-11-23 22:29:07,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 210 transitions, 796 flow [2023-11-23 22:29:07,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:29:07,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-23 22:29:07,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 329 transitions. [2023-11-23 22:29:07,065 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6003649635036497 [2023-11-23 22:29:07,066 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 329 transitions. [2023-11-23 22:29:07,066 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 329 transitions. [2023-11-23 22:29:07,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:29:07,074 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 329 transitions. [2023-11-23 22:29:07,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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) [2023-11-23 22:29:07,088 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 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) [2023-11-23 22:29:07,089 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 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) [2023-11-23 22:29:07,090 INFO L175 Difference]: Start difference. First operand has 114 places, 137 transitions, 294 flow. Second operand 4 states and 329 transitions. [2023-11-23 22:29:07,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 210 transitions, 796 flow [2023-11-23 22:29:07,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 210 transitions, 796 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-11-23 22:29:07,110 INFO L231 Difference]: Finished difference. Result has 116 places, 123 transitions, 294 flow [2023-11-23 22:29:07,113 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=294, PETRI_PLACES=116, PETRI_TRANSITIONS=123} [2023-11-23 22:29:07,117 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 2 predicate places. [2023-11-23 22:29:07,124 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 123 transitions, 294 flow [2023-11-23 22:29:07,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 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) [2023-11-23 22:29:07,124 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:29:07,124 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 22:29:07,125 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 22:29:07,125 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting producer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-23 22:29:07,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:29:07,126 INFO L85 PathProgramCache]: Analyzing trace with hash 676419486, now seen corresponding path program 1 times [2023-11-23 22:29:07,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:29:07,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722740854] [2023-11-23 22:29:07,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:29:07,127 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:29:07,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:29:07,335 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:29:07,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:29:07,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722740854] [2023-11-23 22:29:07,336 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722740854] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:29:07,336 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:29:07,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-23 22:29:07,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678964982] [2023-11-23 22:29:07,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:29:07,338 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:29:07,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:29:07,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:29:07,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:29:07,342 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 137 [2023-11-23 22:29:07,343 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 123 transitions, 294 flow. Second operand has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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) [2023-11-23 22:29:07,343 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:29:07,343 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 137 [2023-11-23 22:29:07,344 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-11-23 22:29:12,125 INFO L124 PetriNetUnfolderBase]: 13218/20195 cut-off events. [2023-11-23 22:29:12,126 INFO L125 PetriNetUnfolderBase]: For 4051/4051 co-relation queries the response was YES. [2023-11-23 22:29:12,166 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42005 conditions, 20195 events. 13218/20195 cut-off events. For 4051/4051 co-relation queries the response was YES. Maximal size of possible extension queue 542. Compared 125034 event pairs, 9736 based on Foata normal form. 150/16948 useless extension candidates. Maximal degree in co-relation 41163. Up to 10299 conditions per place. [2023-11-23 22:29:12,276 INFO L140 encePairwiseOnDemand]: 131/137 looper letters, 190 selfloop transitions, 3 changer transitions 0/226 dead transitions. [2023-11-23 22:29:12,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 226 transitions, 938 flow [2023-11-23 22:29:12,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 22:29:12,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-11-23 22:29:12,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 336 transitions. [2023-11-23 22:29:12,279 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6131386861313869 [2023-11-23 22:29:12,279 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 336 transitions. [2023-11-23 22:29:12,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 336 transitions. [2023-11-23 22:29:12,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-11-23 22:29:12,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 336 transitions. [2023-11-23 22:29:12,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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) [2023-11-23 22:29:12,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 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) [2023-11-23 22:29:12,285 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 137.0) internal successors, (685), 5 states have internal predecessors, (685), 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) [2023-11-23 22:29:12,285 INFO L175 Difference]: Start difference. First operand has 116 places, 123 transitions, 294 flow. Second operand 4 states and 336 transitions. [2023-11-23 22:29:12,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 226 transitions, 938 flow [2023-11-23 22:29:12,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 226 transitions, 932 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-11-23 22:29:12,301 INFO L231 Difference]: Finished difference. Result has 117 places, 125 transitions, 316 flow [2023-11-23 22:29:12,301 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=137, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=316, PETRI_PLACES=117, PETRI_TRANSITIONS=125} [2023-11-23 22:29:12,302 INFO L281 CegarLoopForPetriNet]: 114 programPoint places, 3 predicate places. [2023-11-23 22:29:12,302 INFO L495 AbstractCegarLoop]: Abstraction has has 117 places, 125 transitions, 316 flow [2023-11-23 22:29:12,303 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.0) internal successors, (148), 4 states have internal predecessors, (148), 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) [2023-11-23 22:29:12,303 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:29:12,303 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-11-23 22:29:12,303 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 22:29:12,303 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2023-11-23 22:29:12,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:29:12,304 INFO L85 PathProgramCache]: Analyzing trace with hash 586175192, now seen corresponding path program 1 times [2023-11-23 22:29:12,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:29:12,305 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118397085] [2023-11-23 22:29:12,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:29:12,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:29:12,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:29:12,408 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-23 22:29:12,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-23 22:29:12,486 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-23 22:29:12,487 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-23 22:29:12,494 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (23 of 24 remaining) [2023-11-23 22:29:12,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 24 remaining) [2023-11-23 22:29:12,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 24 remaining) [2023-11-23 22:29:12,497 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 24 remaining) [2023-11-23 22:29:12,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 24 remaining) [2023-11-23 22:29:12,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 24 remaining) [2023-11-23 22:29:12,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 24 remaining) [2023-11-23 22:29:12,498 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 24 remaining) [2023-11-23 22:29:12,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 24 remaining) [2023-11-23 22:29:12,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 24 remaining) [2023-11-23 22:29:12,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 24 remaining) [2023-11-23 22:29:12,499 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 24 remaining) [2023-11-23 22:29:12,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 24 remaining) [2023-11-23 22:29:12,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 24 remaining) [2023-11-23 22:29:12,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 24 remaining) [2023-11-23 22:29:12,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 24 remaining) [2023-11-23 22:29:12,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 24 remaining) [2023-11-23 22:29:12,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 24 remaining) [2023-11-23 22:29:12,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 24 remaining) [2023-11-23 22:29:12,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 24 remaining) [2023-11-23 22:29:12,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 24 remaining) [2023-11-23 22:29:12,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 24 remaining) [2023-11-23 22:29:12,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 24 remaining) [2023-11-23 22:29:12,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location producer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 24 remaining) [2023-11-23 22:29:12,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 22:29:12,503 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-11-23 22:29:12,506 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-23 22:29:12,506 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-23 22:29:12,664 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-11-23 22:29:12,673 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 167 places, 204 transitions, 452 flow [2023-11-23 22:29:12,885 INFO L124 PetriNetUnfolderBase]: 273/1229 cut-off events. [2023-11-23 22:29:12,885 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2023-11-23 22:29:12,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1318 conditions, 1229 events. 273/1229 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 8277 event pairs, 1 based on Foata normal form. 0/781 useless extension candidates. Maximal degree in co-relation 686. Up to 64 conditions per place. [2023-11-23 22:29:12,904 INFO L82 GeneralOperation]: Start removeDead. Operand has 167 places, 204 transitions, 452 flow [2023-11-23 22:29:12,920 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 167 places, 204 transitions, 452 flow [2023-11-23 22:29:12,921 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 22:29:12,926 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=LoopHeads, 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;@1ecd3221, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 22:29:12,926 INFO L358 AbstractCegarLoop]: Starting to check reachability of 28 error locations. [2023-11-23 22:29:12,936 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2023-11-23 22:29:12,936 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2023-11-23 22:29:12,936 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2023-11-23 22:29:12,937 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-11-23 22:29:12,937 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-11-23 22:29:12,937 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [consumer_routineErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, consumer_routineErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 25 more)] === [2023-11-23 22:29:12,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 22:29:12,938 INFO L85 PathProgramCache]: Analyzing trace with hash 1354137861, now seen corresponding path program 1 times [2023-11-23 22:29:12,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 22:29:12,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569541444] [2023-11-23 22:29:12,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 22:29:12,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 22:29:13,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 22:29:13,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-23 22:29:13,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 22:29:13,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569541444] [2023-11-23 22:29:13,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1569541444] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 22:29:13,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 22:29:13,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 22:29:13,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436269233] [2023-11-23 22:29:13,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 22:29:13,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 22:29:13,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 22:29:13,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 22:29:13,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 22:29:13,155 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 204 [2023-11-23 22:29:13,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 204 transitions, 452 flow. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 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) [2023-11-23 22:29:13,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-11-23 22:29:13,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 204 [2023-11-23 22:29:13,157 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand