./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d75cc0-ddbc-48fe-8de3-08875ef27d18/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d75cc0-ddbc-48fe-8de3-08875ef27d18/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d75cc0-ddbc-48fe-8de3-08875ef27d18/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d75cc0-ddbc-48fe-8de3-08875ef27d18/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d75cc0-ddbc-48fe-8de3-08875ef27d18/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d75cc0-ddbc-48fe-8de3-08875ef27d18/bin/uautomizer-verify-aQ6SnzHsRB --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 2d41b1dc1d5d7eec1f1fd4e3cbbef0194aa2dded6486a15b383e9bb8fe1468a3 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:06:50,588 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:06:50,661 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d75cc0-ddbc-48fe-8de3-08875ef27d18/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 02:06:50,667 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:06:50,667 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:06:50,704 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:06:50,707 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:06:50,707 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:06:50,708 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:06:50,709 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:06:50,710 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:06:50,710 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:06:50,710 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:06:50,710 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:06:50,711 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:06:50,711 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:06:50,712 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:06:50,712 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:06:50,712 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:06:50,712 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:06:50,712 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:06:50,712 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:06:50,712 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:06:50,713 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:06:50,713 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 02:06:50,713 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 02:06:50,713 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:06:50,713 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:06:50,713 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:06:50,713 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:06:50,713 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:06:50,714 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:06:50,714 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:06:50,714 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:06:50,714 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:06:50,714 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:06:50,715 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:06:50,715 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:06:50,715 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:06:50,715 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:06:50,716 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:06:50,716 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:06:50,716 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:06:50,716 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:06:50,716 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:06:50,716 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:06:50,716 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:06:50,716 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:06:50,716 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:06:50,716 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:06:50,716 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_27d75cc0-ddbc-48fe-8de3-08875ef27d18/bin/uautomizer-verify-aQ6SnzHsRB 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 -> 2d41b1dc1d5d7eec1f1fd4e3cbbef0194aa2dded6486a15b383e9bb8fe1468a3 [2024-11-28 02:06:51,057 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:06:51,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:06:51,073 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:06:51,075 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:06:51,075 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:06:51,076 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d75cc0-ddbc-48fe-8de3-08875ef27d18/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2024-11-28 02:06:54,043 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d75cc0-ddbc-48fe-8de3-08875ef27d18/bin/uautomizer-verify-aQ6SnzHsRB/data/f807f435b/7577fc1474484eafb1ef68bbbc1d2ee7/FLAGed6a8d228 [2024-11-28 02:06:54,329 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:06:54,330 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d75cc0-ddbc-48fe-8de3-08875ef27d18/sv-benchmarks/c/weaver/parallel-parallel-sum-equiv.wvr.c [2024-11-28 02:06:54,341 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d75cc0-ddbc-48fe-8de3-08875ef27d18/bin/uautomizer-verify-aQ6SnzHsRB/data/f807f435b/7577fc1474484eafb1ef68bbbc1d2ee7/FLAGed6a8d228 [2024-11-28 02:06:54,612 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d75cc0-ddbc-48fe-8de3-08875ef27d18/bin/uautomizer-verify-aQ6SnzHsRB/data/f807f435b/7577fc1474484eafb1ef68bbbc1d2ee7 [2024-11-28 02:06:54,614 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:06:54,615 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:06:54,617 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:06:54,617 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:06:54,621 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:06:54,621 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:54,622 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d4b5655 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54, skipping insertion in model container [2024-11-28 02:06:54,623 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:54,648 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:06:54,857 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:06:54,869 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:06:54,919 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:06:54,941 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:06:54,942 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54 WrapperNode [2024-11-28 02:06:54,942 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:06:54,943 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:06:54,943 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:06:54,944 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:06:54,954 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:54,966 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:55,016 INFO L138 Inliner]: procedures = 26, calls = 54, calls flagged for inlining = 19, calls inlined = 23, statements flattened = 301 [2024-11-28 02:06:55,020 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:06:55,021 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:06:55,021 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:06:55,021 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:06:55,036 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:55,036 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:55,041 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:55,066 INFO L175 MemorySlicer]: Split 6 memory accesses to 2 slices as follows [2, 4]. 67 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-28 02:06:55,067 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:55,067 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:55,075 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:55,076 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:55,081 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:55,083 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:55,084 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:55,091 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:06:55,092 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:06:55,096 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:06:55,096 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:06:55,097 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (1/1) ... [2024-11-28 02:06:55,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:06:55,121 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d75cc0-ddbc-48fe-8de3-08875ef27d18/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:06:55,138 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d75cc0-ddbc-48fe-8de3-08875ef27d18/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:06:55,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d75cc0-ddbc-48fe-8de3-08875ef27d18/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:06:55,178 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:06:55,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:06:55,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 02:06:55,178 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:06:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 02:06:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-28 02:06:55,179 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-28 02:06:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-28 02:06:55,179 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-28 02:06:55,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-28 02:06:55,179 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-28 02:06:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-28 02:06:55,180 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-28 02:06:55,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:06:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:06:55,181 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-28 02:06:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-28 02:06:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 02:06:55,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:06:55,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:06:55,184 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 02:06:55,352 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:06:55,355 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:06:56,118 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 02:06:56,119 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:06:56,799 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:06:56,799 INFO L312 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-28 02:06:56,799 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:06:56 BoogieIcfgContainer [2024-11-28 02:06:56,800 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:06:56,802 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:06:56,803 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:06:56,807 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:06:56,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:06:54" (1/3) ... [2024-11-28 02:06:56,809 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225c536f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:06:56, skipping insertion in model container [2024-11-28 02:06:56,810 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:06:54" (2/3) ... [2024-11-28 02:06:56,810 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225c536f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:06:56, skipping insertion in model container [2024-11-28 02:06:56,811 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:06:56" (3/3) ... [2024-11-28 02:06:56,813 INFO L128 eAbstractionObserver]: Analyzing ICFG parallel-parallel-sum-equiv.wvr.c [2024-11-28 02:06:56,832 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:06:56,834 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-parallel-sum-equiv.wvr.c that has 5 procedures, 78 locations, 1 initial locations, 4 loop locations, and 28 error locations. [2024-11-28 02:06:56,834 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 02:06:57,023 INFO L143 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2024-11-28 02:06:57,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 89 transitions, 218 flow [2024-11-28 02:06:57,152 INFO L124 PetriNetUnfolderBase]: 9/82 cut-off events. [2024-11-28 02:06:57,156 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-28 02:06:57,162 INFO L83 FinitePrefix]: Finished finitePrefix Result has 101 conditions, 82 events. 9/82 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 251 event pairs, 0 based on Foata normal form. 0/45 useless extension candidates. Maximal degree in co-relation 77. Up to 3 conditions per place. [2024-11-28 02:06:57,162 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 89 transitions, 218 flow [2024-11-28 02:06:57,167 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 84 places, 80 transitions, 187 flow [2024-11-28 02:06:57,177 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:06:57,195 INFO L333 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, 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;@474ebf0c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:06:57,195 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2024-11-28 02:06:57,198 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 02:06:57,198 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-11-28 02:06:57,198 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-28 02:06:57,198 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:06:57,199 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-28 02:06:57,201 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 02:06:57,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:06:57,207 INFO L85 PathProgramCache]: Analyzing trace with hash 33393, now seen corresponding path program 1 times [2024-11-28 02:06:57,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:06:57,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097901365] [2024-11-28 02:06:57,215 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:06:57,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:06:57,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:06:57,446 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:06:57,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:06:57,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097901365] [2024-11-28 02:06:57,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097901365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:06:57,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:06:57,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:06:57,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065006807] [2024-11-28 02:06:57,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:06:57,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:06:57,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:06:57,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:06:57,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:06:57,534 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 91 [2024-11-28 02:06:57,536 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 80 transitions, 187 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-28 02:06:57,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:06:57,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 91 [2024-11-28 02:06:57,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:04,427 INFO L124 PetriNetUnfolderBase]: 38606/51831 cut-off events. [2024-11-28 02:07:04,427 INFO L125 PetriNetUnfolderBase]: For 2048/2048 co-relation queries the response was YES. [2024-11-28 02:07:04,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 106322 conditions, 51831 events. 38606/51831 cut-off events. For 2048/2048 co-relation queries the response was YES. Maximal size of possible extension queue 1956. Compared 299775 event pairs, 35504 based on Foata normal form. 1/32803 useless extension candidates. Maximal degree in co-relation 106226. Up to 51795 conditions per place. [2024-11-28 02:07:04,717 INFO L140 encePairwiseOnDemand]: 80/91 looper letters, 62 selfloop transitions, 1 changer transitions 0/70 dead transitions. [2024-11-28 02:07:04,717 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 70 transitions, 293 flow [2024-11-28 02:07:04,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:04,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:07:04,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 106 transitions. [2024-11-28 02:07:04,733 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3882783882783883 [2024-11-28 02:07:04,735 INFO L175 Difference]: Start difference. First operand has 84 places, 80 transitions, 187 flow. Second operand 3 states and 106 transitions. [2024-11-28 02:07:04,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 70 transitions, 293 flow [2024-11-28 02:07:04,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 70 transitions, 276 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-28 02:07:04,791 INFO L231 Difference]: Finished difference. Result has 72 places, 70 transitions, 152 flow [2024-11-28 02:07:04,794 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=152, PETRI_PLACES=72, PETRI_TRANSITIONS=70} [2024-11-28 02:07:04,798 INFO L279 CegarLoopForPetriNet]: 84 programPoint places, -12 predicate places. [2024-11-28 02:07:04,800 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 70 transitions, 152 flow [2024-11-28 02:07:04,801 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-28 02:07:04,801 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:04,801 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-28 02:07:04,801 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 02:07:04,801 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 02:07:04,802 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:04,803 INFO L85 PathProgramCache]: Analyzing trace with hash 1036205, now seen corresponding path program 1 times [2024-11-28 02:07:04,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:04,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330384295] [2024-11-28 02:07:04,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:04,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:04,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:04,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:04,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330384295] [2024-11-28 02:07:04,879 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330384295] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:04,879 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:04,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-28 02:07:04,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114890581] [2024-11-28 02:07:04,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:04,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:04,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:04,881 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:04,881 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:04,886 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 91 [2024-11-28 02:07:04,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 70 transitions, 152 flow. Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-28 02:07:04,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:04,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 91 [2024-11-28 02:07:04,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:09,054 INFO L124 PetriNetUnfolderBase]: 31282/42029 cut-off events. [2024-11-28 02:07:09,054 INFO L125 PetriNetUnfolderBase]: For 308/308 co-relation queries the response was YES. [2024-11-28 02:07:09,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85179 conditions, 42029 events. 31282/42029 cut-off events. For 308/308 co-relation queries the response was YES. Maximal size of possible extension queue 1481. Compared 236734 event pairs, 28582 based on Foata normal form. 0/27774 useless extension candidates. Maximal degree in co-relation 85173. Up to 41993 conditions per place. [2024-11-28 02:07:09,211 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 58 selfloop transitions, 1 changer transitions 0/66 dead transitions. [2024-11-28 02:07:09,211 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 66 transitions, 262 flow [2024-11-28 02:07:09,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:09,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:07:09,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 96 transitions. [2024-11-28 02:07:09,213 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3516483516483517 [2024-11-28 02:07:09,213 INFO L175 Difference]: Start difference. First operand has 72 places, 70 transitions, 152 flow. Second operand 3 states and 96 transitions. [2024-11-28 02:07:09,213 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 66 transitions, 262 flow [2024-11-28 02:07:09,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 66 transitions, 261 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:07:09,215 INFO L231 Difference]: Finished difference. Result has 69 places, 66 transitions, 145 flow [2024-11-28 02:07:09,215 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=143, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=145, PETRI_PLACES=69, PETRI_TRANSITIONS=66} [2024-11-28 02:07:09,216 INFO L279 CegarLoopForPetriNet]: 84 programPoint places, -15 predicate places. [2024-11-28 02:07:09,216 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 66 transitions, 145 flow [2024-11-28 02:07:09,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2024-11-28 02:07:09,216 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:09,216 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-28 02:07:09,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:07:09,216 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 02:07:09,217 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:09,217 INFO L85 PathProgramCache]: Analyzing trace with hash 995826687, now seen corresponding path program 1 times [2024-11-28 02:07:09,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:09,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111704670] [2024-11-28 02:07:09,217 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:09,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:09,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:09,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:09,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:09,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111704670] [2024-11-28 02:07:09,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111704670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:09,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:09,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:07:09,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274623684] [2024-11-28 02:07:09,338 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:09,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 02:07:09,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:09,338 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 02:07:09,339 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 02:07:09,352 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 91 [2024-11-28 02:07:09,353 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 66 transitions, 145 flow. Second operand has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2024-11-28 02:07:09,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:09,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 91 [2024-11-28 02:07:09,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:12,954 INFO L124 PetriNetUnfolderBase]: 31283/42033 cut-off events. [2024-11-28 02:07:12,954 INFO L125 PetriNetUnfolderBase]: For 308/308 co-relation queries the response was YES. [2024-11-28 02:07:12,996 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85189 conditions, 42033 events. 31283/42033 cut-off events. For 308/308 co-relation queries the response was YES. Maximal size of possible extension queue 1481. Compared 236699 event pairs, 28582 based on Foata normal form. 1/27778 useless extension candidates. Maximal degree in co-relation 85182. Up to 41997 conditions per place. [2024-11-28 02:07:13,138 INFO L140 encePairwiseOnDemand]: 85/91 looper letters, 60 selfloop transitions, 4 changer transitions 0/69 dead transitions. [2024-11-28 02:07:13,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 69 transitions, 279 flow [2024-11-28 02:07:13,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 02:07:13,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 02:07:13,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2024-11-28 02:07:13,140 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3021978021978022 [2024-11-28 02:07:13,140 INFO L175 Difference]: Start difference. First operand has 69 places, 66 transitions, 145 flow. Second operand 4 states and 110 transitions. [2024-11-28 02:07:13,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 69 transitions, 279 flow [2024-11-28 02:07:13,141 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 69 transitions, 278 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:07:13,143 INFO L231 Difference]: Finished difference. Result has 73 places, 69 transitions, 173 flow [2024-11-28 02:07:13,143 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=173, PETRI_PLACES=73, PETRI_TRANSITIONS=69} [2024-11-28 02:07:13,144 INFO L279 CegarLoopForPetriNet]: 84 programPoint places, -11 predicate places. [2024-11-28 02:07:13,144 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 69 transitions, 173 flow [2024-11-28 02:07:13,145 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.0) internal successors, (48), 4 states have internal predecessors, (48), 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) [2024-11-28 02:07:13,145 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:13,145 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:13,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:07:13,145 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 02:07:13,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:13,146 INFO L85 PathProgramCache]: Analyzing trace with hash 1334723237, now seen corresponding path program 1 times [2024-11-28 02:07:13,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:13,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164590944] [2024-11-28 02:07:13,146 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:13,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:13,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:13,388 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:13,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:13,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164590944] [2024-11-28 02:07:13,389 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164590944] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:07:13,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [751690250] [2024-11-28 02:07:13,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:13,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:13,390 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d75cc0-ddbc-48fe-8de3-08875ef27d18/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:13,394 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d75cc0-ddbc-48fe-8de3-08875ef27d18/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:13,401 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d75cc0-ddbc-48fe-8de3-08875ef27d18/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:07:13,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:13,517 INFO L256 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:07:13,521 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:13,584 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:13,584 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:07:13,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [751690250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:13,584 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:07:13,584 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-28 02:07:13,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856097771] [2024-11-28 02:07:13,586 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:13,587 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:07:13,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:13,588 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:07:13,588 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:07:13,599 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 91 [2024-11-28 02:07:13,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 69 transitions, 173 flow. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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) [2024-11-28 02:07:13,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:13,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 91 [2024-11-28 02:07:13,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:17,512 INFO L124 PetriNetUnfolderBase]: 31283/42032 cut-off events. [2024-11-28 02:07:17,512 INFO L125 PetriNetUnfolderBase]: For 313/313 co-relation queries the response was YES. [2024-11-28 02:07:17,586 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85200 conditions, 42032 events. 31283/42032 cut-off events. For 313/313 co-relation queries the response was YES. Maximal size of possible extension queue 1481. Compared 236682 event pairs, 28582 based on Foata normal form. 1/27778 useless extension candidates. Maximal degree in co-relation 85191. Up to 41992 conditions per place. [2024-11-28 02:07:17,718 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 56 selfloop transitions, 7 changer transitions 0/68 dead transitions. [2024-11-28 02:07:17,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 68 transitions, 295 flow [2024-11-28 02:07:17,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:07:17,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 02:07:17,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 130 transitions. [2024-11-28 02:07:17,721 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.23809523809523808 [2024-11-28 02:07:17,721 INFO L175 Difference]: Start difference. First operand has 73 places, 69 transitions, 173 flow. Second operand 6 states and 130 transitions. [2024-11-28 02:07:17,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 68 transitions, 295 flow [2024-11-28 02:07:17,722 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 68 transitions, 292 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 02:07:17,724 INFO L231 Difference]: Finished difference. Result has 76 places, 68 transitions, 180 flow [2024-11-28 02:07:17,724 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=180, PETRI_PLACES=76, PETRI_TRANSITIONS=68} [2024-11-28 02:07:17,725 INFO L279 CegarLoopForPetriNet]: 84 programPoint places, -8 predicate places. [2024-11-28 02:07:17,725 INFO L471 AbstractCegarLoop]: Abstraction has has 76 places, 68 transitions, 180 flow [2024-11-28 02:07:17,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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) [2024-11-28 02:07:17,725 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:17,726 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2024-11-28 02:07:17,738 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d75cc0-ddbc-48fe-8de3-08875ef27d18/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 02:07:17,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d75cc0-ddbc-48fe-8de3-08875ef27d18/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:17,928 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 02:07:17,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:17,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1573251603, now seen corresponding path program 1 times [2024-11-28 02:07:17,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:17,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [405196520] [2024-11-28 02:07:17,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:17,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:17,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:18,112 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:18,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:18,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [405196520] [2024-11-28 02:07:18,113 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [405196520] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:07:18,113 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1323644581] [2024-11-28 02:07:18,113 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:18,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:18,114 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d75cc0-ddbc-48fe-8de3-08875ef27d18/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:07:18,117 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d75cc0-ddbc-48fe-8de3-08875ef27d18/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:07:18,121 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d75cc0-ddbc-48fe-8de3-08875ef27d18/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:07:18,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:18,245 INFO L256 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:07:18,249 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:07:18,294 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:18,295 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:07:18,354 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:18,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1323644581] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 02:07:18,355 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 02:07:18,356 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-28 02:07:18,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492791472] [2024-11-28 02:07:18,357 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 02:07:18,357 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-28 02:07:18,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:18,361 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-28 02:07:18,361 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-28 02:07:18,376 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 91 [2024-11-28 02:07:18,378 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 68 transitions, 180 flow. Second operand has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 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) [2024-11-28 02:07:18,378 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:18,378 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 91 [2024-11-28 02:07:18,378 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:21,731 INFO L124 PetriNetUnfolderBase]: 31286/42044 cut-off events. [2024-11-28 02:07:21,732 INFO L125 PetriNetUnfolderBase]: For 330/330 co-relation queries the response was YES. [2024-11-28 02:07:21,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85244 conditions, 42044 events. 31286/42044 cut-off events. For 330/330 co-relation queries the response was YES. Maximal size of possible extension queue 1487. Compared 236718 event pairs, 28582 based on Foata normal form. 3/27790 useless extension candidates. Maximal degree in co-relation 85235. Up to 41999 conditions per place. [2024-11-28 02:07:21,893 INFO L140 encePairwiseOnDemand]: 86/91 looper letters, 59 selfloop transitions, 13 changer transitions 0/77 dead transitions. [2024-11-28 02:07:21,893 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 77 transitions, 378 flow [2024-11-28 02:07:21,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 02:07:21,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-28 02:07:21,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 185 transitions. [2024-11-28 02:07:21,895 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.2032967032967033 [2024-11-28 02:07:21,895 INFO L175 Difference]: Start difference. First operand has 76 places, 68 transitions, 180 flow. Second operand 10 states and 185 transitions. [2024-11-28 02:07:21,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 77 transitions, 378 flow [2024-11-28 02:07:21,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 77 transitions, 332 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-28 02:07:21,898 INFO L231 Difference]: Finished difference. Result has 83 places, 77 transitions, 232 flow [2024-11-28 02:07:21,899 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=232, PETRI_PLACES=83, PETRI_TRANSITIONS=77} [2024-11-28 02:07:21,899 INFO L279 CegarLoopForPetriNet]: 84 programPoint places, -1 predicate places. [2024-11-28 02:07:21,900 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 77 transitions, 232 flow [2024-11-28 02:07:21,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.166666666666666) internal successors, (146), 12 states have internal predecessors, (146), 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) [2024-11-28 02:07:21,900 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:21,900 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:21,910 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d75cc0-ddbc-48fe-8de3-08875ef27d18/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:07:22,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27d75cc0-ddbc-48fe-8de3-08875ef27d18/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:07:22,101 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread4Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 02:07:22,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:22,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1795329461, now seen corresponding path program 1 times [2024-11-28 02:07:22,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:22,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498587582] [2024-11-28 02:07:22,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:22,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:22,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:22,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:22,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:22,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498587582] [2024-11-28 02:07:22,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498587582] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:22,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:22,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 02:07:22,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003133879] [2024-11-28 02:07:22,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:22,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:07:22,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:22,414 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:07:22,414 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:07:22,414 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 91 [2024-11-28 02:07:22,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 77 transitions, 232 flow. Second operand has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-28 02:07:22,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:22,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 91 [2024-11-28 02:07:22,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 02:07:27,476 INFO L124 PetriNetUnfolderBase]: 44938/60298 cut-off events. [2024-11-28 02:07:27,477 INFO L125 PetriNetUnfolderBase]: For 536/536 co-relation queries the response was YES. [2024-11-28 02:07:27,564 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121932 conditions, 60298 events. 44938/60298 cut-off events. For 536/536 co-relation queries the response was YES. Maximal size of possible extension queue 1993. Compared 354168 event pairs, 28644 based on Foata normal form. 0/41185 useless extension candidates. Maximal degree in co-relation 121921. Up to 42056 conditions per place. [2024-11-28 02:07:27,681 INFO L140 encePairwiseOnDemand]: 88/91 looper letters, 113 selfloop transitions, 2 changer transitions 0/121 dead transitions. [2024-11-28 02:07:27,682 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 121 transitions, 557 flow [2024-11-28 02:07:27,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:07:27,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-28 02:07:27,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 143 transitions. [2024-11-28 02:07:27,683 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5238095238095238 [2024-11-28 02:07:27,683 INFO L175 Difference]: Start difference. First operand has 83 places, 77 transitions, 232 flow. Second operand 3 states and 143 transitions. [2024-11-28 02:07:27,683 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 121 transitions, 557 flow [2024-11-28 02:07:27,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 121 transitions, 546 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-28 02:07:27,686 INFO L231 Difference]: Finished difference. Result has 84 places, 78 transitions, 233 flow [2024-11-28 02:07:27,687 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=233, PETRI_PLACES=84, PETRI_TRANSITIONS=78} [2024-11-28 02:07:27,687 INFO L279 CegarLoopForPetriNet]: 84 programPoint places, 0 predicate places. [2024-11-28 02:07:27,687 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 78 transitions, 233 flow [2024-11-28 02:07:27,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.333333333333332) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-11-28 02:07:27,688 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 02:07:27,688 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:07:27,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:07:27,688 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread4Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread1Err3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 02:07:27,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:07:27,689 INFO L85 PathProgramCache]: Analyzing trace with hash -179360386, now seen corresponding path program 1 times [2024-11-28 02:07:27,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:07:27,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529046589] [2024-11-28 02:07:27,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:07:27,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:07:27,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:07:27,865 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 02:07:27,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:07:27,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529046589] [2024-11-28 02:07:27,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529046589] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:07:27,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:07:27,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:07:27,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796274649] [2024-11-28 02:07:27,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:07:27,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:07:27,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:07:27,867 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:07:27,868 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:07:27,876 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 91 [2024-11-28 02:07:27,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 78 transitions, 233 flow. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 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) [2024-11-28 02:07:27,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 02:07:27,877 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 91 [2024-11-28 02:07:27,877 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand