./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 6497de01 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC --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 f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af --- Real Ultimate output --- This is Ultimate 0.3.0-dev-6497de0 [2024-11-24 00:43:12,251 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-24 00:43:12,375 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-24 00:43:12,385 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-24 00:43:12,386 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-24 00:43:12,433 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-24 00:43:12,435 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-24 00:43:12,435 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-24 00:43:12,436 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-24 00:43:12,436 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-24 00:43:12,437 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-24 00:43:12,437 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-24 00:43:12,437 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-24 00:43:12,437 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-24 00:43:12,438 INFO L153 SettingsManager]: * Use SBE=true [2024-11-24 00:43:12,438 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-24 00:43:12,438 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-24 00:43:12,438 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-24 00:43:12,438 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-24 00:43:12,438 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-24 00:43:12,438 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-24 00:43:12,438 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-24 00:43:12,439 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-24 00:43:12,439 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-24 00:43:12,439 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-24 00:43:12,439 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-24 00:43:12,439 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-24 00:43:12,439 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-24 00:43:12,439 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-24 00:43:12,439 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-24 00:43:12,440 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-24 00:43:12,440 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:43:12,440 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:43:12,440 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:43:12,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:43:12,440 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-24 00:43:12,440 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-24 00:43:12,443 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-24 00:43:12,443 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-24 00:43:12,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:43:12,444 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-24 00:43:12,444 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-24 00:43:12,444 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-24 00:43:12,444 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-24 00:43:12,444 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-24 00:43:12,445 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-24 00:43:12,445 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-24 00:43:12,445 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-24 00:43:12,445 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-24 00:43:12,445 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-24 00:43:12,446 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_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC 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 -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af [2024-11-24 00:43:12,831 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-24 00:43:12,841 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-24 00:43:12,843 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-24 00:43:12,846 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-24 00:43:12,846 INFO L274 PluginConnector]: CDTParser initialized [2024-11-24 00:43:12,848 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/../../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-11-24 00:43:16,298 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/data/ed646aa46/aac5bb833b60403c9b98a4a700bb3eb1/FLAG8b4bc39ad [2024-11-24 00:43:16,821 INFO L384 CDTParser]: Found 1 translation units. [2024-11-24 00:43:16,822 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-11-24 00:43:16,844 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/data/ed646aa46/aac5bb833b60403c9b98a4a700bb3eb1/FLAG8b4bc39ad [2024-11-24 00:43:16,861 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/data/ed646aa46/aac5bb833b60403c9b98a4a700bb3eb1 [2024-11-24 00:43:16,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-24 00:43:16,865 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-24 00:43:16,867 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-24 00:43:16,867 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-24 00:43:16,873 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-24 00:43:16,874 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:43:16" (1/1) ... [2024-11-24 00:43:16,875 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67f2d6fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:16, skipping insertion in model container [2024-11-24 00:43:16,875 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:43:16" (1/1) ... [2024-11-24 00:43:16,928 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-24 00:43:17,528 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-24 00:43:17,529 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-24 00:43:17,530 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-24 00:43:17,531 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-24 00:43:17,595 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:43:17,640 INFO L200 MainTranslator]: Completed pre-run [2024-11-24 00:43:17,691 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-24 00:43:17,691 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-24 00:43:17,691 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-24 00:43:17,692 WARN L1675 CHandler]: Possible shadowing of function new [2024-11-24 00:43:17,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-24 00:43:17,794 INFO L204 MainTranslator]: Completed translation [2024-11-24 00:43:17,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:17 WrapperNode [2024-11-24 00:43:17,795 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-24 00:43:17,796 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-24 00:43:17,796 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-24 00:43:17,796 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-24 00:43:17,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:17" (1/1) ... [2024-11-24 00:43:17,823 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:17" (1/1) ... [2024-11-24 00:43:17,888 INFO L138 Inliner]: procedures = 280, calls = 143, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 408 [2024-11-24 00:43:17,888 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-24 00:43:17,892 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-24 00:43:17,892 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-24 00:43:17,892 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-24 00:43:17,906 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:17" (1/1) ... [2024-11-24 00:43:17,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:17" (1/1) ... [2024-11-24 00:43:17,917 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:17" (1/1) ... [2024-11-24 00:43:17,980 INFO L175 MemorySlicer]: Split 105 memory accesses to 5 slices as follows [2, 94, 5, 2, 2]. 90 percent of accesses are in the largest equivalence class. The 77 initializations are split as follows [2, 70, 5, 0, 0]. The 15 writes are split as follows [0, 13, 0, 1, 1]. [2024-11-24 00:43:17,980 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:17" (1/1) ... [2024-11-24 00:43:17,980 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:17" (1/1) ... [2024-11-24 00:43:18,015 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:17" (1/1) ... [2024-11-24 00:43:18,016 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:17" (1/1) ... [2024-11-24 00:43:18,027 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:17" (1/1) ... [2024-11-24 00:43:18,030 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:17" (1/1) ... [2024-11-24 00:43:18,037 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:17" (1/1) ... [2024-11-24 00:43:18,049 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-24 00:43:18,050 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-24 00:43:18,050 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-24 00:43:18,050 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-24 00:43:18,051 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:17" (1/1) ... [2024-11-24 00:43:18,063 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-24 00:43:18,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:43:18,094 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-24 00:43:18,096 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-24 00:43:18,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-24 00:43:18,123 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-24 00:43:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-24 00:43:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-24 00:43:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-24 00:43:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-24 00:43:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-24 00:43:18,124 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-24 00:43:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-24 00:43:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-24 00:43:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-24 00:43:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-24 00:43:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-24 00:43:18,124 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-24 00:43:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-24 00:43:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-24 00:43:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-24 00:43:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-24 00:43:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-24 00:43:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-24 00:43:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-24 00:43:18,125 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-24 00:43:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-24 00:43:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-24 00:43:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-24 00:43:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-24 00:43:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-24 00:43:18,125 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-24 00:43:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-24 00:43:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-24 00:43:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-24 00:43:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-24 00:43:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-24 00:43:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-24 00:43:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-24 00:43:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-24 00:43:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-24 00:43:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-24 00:43:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-24 00:43:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-24 00:43:18,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-24 00:43:18,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-24 00:43:18,128 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-24 00:43:18,407 INFO L234 CfgBuilder]: Building ICFG [2024-11-24 00:43:18,409 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-24 00:43:19,299 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-24 00:43:19,299 INFO L283 CfgBuilder]: Performing block encoding [2024-11-24 00:43:20,353 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-24 00:43:20,354 INFO L312 CfgBuilder]: Removed 20 assume(true) statements. [2024-11-24 00:43:20,355 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:43:20 BoogieIcfgContainer [2024-11-24 00:43:20,355 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-24 00:43:20,359 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-24 00:43:20,359 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-24 00:43:20,366 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-24 00:43:20,366 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:43:16" (1/3) ... [2024-11-24 00:43:20,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4527a286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:43:20, skipping insertion in model container [2024-11-24 00:43:20,368 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:43:17" (2/3) ... [2024-11-24 00:43:20,368 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4527a286 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:43:20, skipping insertion in model container [2024-11-24 00:43:20,370 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:43:20" (3/3) ... [2024-11-24 00:43:20,371 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2024-11-24 00:43:20,394 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-24 00:43:20,397 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_90-arrayloop2_racing.i that has 3 procedures, 134 locations, 1 initial locations, 20 loop locations, and 30 error locations. [2024-11-24 00:43:20,399 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-24 00:43:20,551 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-24 00:43:20,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 167 transitions, 354 flow [2024-11-24 00:43:20,810 INFO L124 PetriNetUnfolderBase]: 49/279 cut-off events. [2024-11-24 00:43:20,813 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-24 00:43:20,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 279 events. 49/279 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1387 event pairs, 0 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 156. Up to 8 conditions per place. [2024-11-24 00:43:20,830 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 167 transitions, 354 flow [2024-11-24 00:43:20,848 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 167 transitions, 354 flow [2024-11-24 00:43:20,862 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-24 00:43:20,884 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;@377d573d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-24 00:43:20,884 INFO L334 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2024-11-24 00:43:20,899 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-24 00:43:20,900 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-11-24 00:43:20,900 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-24 00:43:20,900 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:20,901 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-24 00:43:20,902 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-24 00:43:20,911 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:20,912 INFO L85 PathProgramCache]: Analyzing trace with hash 33227518, now seen corresponding path program 1 times [2024-11-24 00:43:20,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:20,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [26513290] [2024-11-24 00:43:20,923 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:20,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-24 00:43:21,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1028790625] [2024-11-24 00:43:21,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:21,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:43:21,199 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:43:21,205 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:43:21,211 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-24 00:43:21,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:21,489 INFO L256 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-24 00:43:21,494 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:43:21,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:43:21,549 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:43:21,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:21,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [26513290] [2024-11-24 00:43:21,551 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-24 00:43:21,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1028790625] [2024-11-24 00:43:21,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1028790625] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:21,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:21,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-24 00:43:21,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373045159] [2024-11-24 00:43:21,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:21,565 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:43:21,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:21,612 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:43:21,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:43:21,631 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 167 [2024-11-24 00:43:21,637 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 167 transitions, 354 flow. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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) [2024-11-24 00:43:21,638 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:21,638 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 167 [2024-11-24 00:43:21,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:25,984 INFO L124 PetriNetUnfolderBase]: 8567/18703 cut-off events. [2024-11-24 00:43:25,984 INFO L125 PetriNetUnfolderBase]: For 269/269 co-relation queries the response was YES. [2024-11-24 00:43:26,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31554 conditions, 18703 events. 8567/18703 cut-off events. For 269/269 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170793 event pairs, 7350 based on Foata normal form. 2268/17636 useless extension candidates. Maximal degree in co-relation 30140. Up to 12703 conditions per place. [2024-11-24 00:43:26,126 INFO L140 encePairwiseOnDemand]: 142/167 looper letters, 76 selfloop transitions, 2 changer transitions 0/152 dead transitions. [2024-11-24 00:43:26,127 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 152 transitions, 480 flow [2024-11-24 00:43:26,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:43:26,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:43:26,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 323 transitions. [2024-11-24 00:43:26,150 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6447105788423154 [2024-11-24 00:43:26,152 INFO L175 Difference]: Start difference. First operand has 140 places, 167 transitions, 354 flow. Second operand 3 states and 323 transitions. [2024-11-24 00:43:26,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 152 transitions, 480 flow [2024-11-24 00:43:26,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 152 transitions, 480 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-24 00:43:26,171 INFO L231 Difference]: Finished difference. Result has 143 places, 148 transitions, 330 flow [2024-11-24 00:43:26,174 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=143, PETRI_TRANSITIONS=148} [2024-11-24 00:43:26,180 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 3 predicate places. [2024-11-24 00:43:26,180 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 148 transitions, 330 flow [2024-11-24 00:43:26,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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) [2024-11-24 00:43:26,182 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:26,182 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-24 00:43:26,197 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-24 00:43:26,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:43:26,388 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-24 00:43:26,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:26,389 INFO L85 PathProgramCache]: Analyzing trace with hash 33227532, now seen corresponding path program 1 times [2024-11-24 00:43:26,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:26,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10526215] [2024-11-24 00:43:26,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:26,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:26,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:26,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:43:26,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:26,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10526215] [2024-11-24 00:43:26,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10526215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:26,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:26,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:43:26,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545172652] [2024-11-24 00:43:26,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:26,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-24 00:43:26,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:26,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-24 00:43:26,630 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-24 00:43:26,644 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 167 [2024-11-24 00:43:26,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 148 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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) [2024-11-24 00:43:26,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:26,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 167 [2024-11-24 00:43:26,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:29,995 INFO L124 PetriNetUnfolderBase]: 8567/18717 cut-off events. [2024-11-24 00:43:29,995 INFO L125 PetriNetUnfolderBase]: For 275/275 co-relation queries the response was YES. [2024-11-24 00:43:30,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31581 conditions, 18717 events. 8567/18717 cut-off events. For 275/275 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170912 event pairs, 7350 based on Foata normal form. 4/15386 useless extension candidates. Maximal degree in co-relation 31543. Up to 12708 conditions per place. [2024-11-24 00:43:30,104 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 74 selfloop transitions, 2 changer transitions 0/150 dead transitions. [2024-11-24 00:43:30,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 150 transitions, 486 flow [2024-11-24 00:43:30,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-24 00:43:30,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-24 00:43:30,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2024-11-24 00:43:30,107 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5988023952095808 [2024-11-24 00:43:30,108 INFO L175 Difference]: Start difference. First operand has 143 places, 148 transitions, 330 flow. Second operand 3 states and 300 transitions. [2024-11-24 00:43:30,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 150 transitions, 486 flow [2024-11-24 00:43:30,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 150 transitions, 484 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:43:30,117 INFO L231 Difference]: Finished difference. Result has 145 places, 149 transitions, 344 flow [2024-11-24 00:43:30,120 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=145, PETRI_TRANSITIONS=149} [2024-11-24 00:43:30,121 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 5 predicate places. [2024-11-24 00:43:30,121 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 149 transitions, 344 flow [2024-11-24 00:43:30,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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) [2024-11-24 00:43:30,122 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:30,122 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-24 00:43:30,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-24 00:43:30,122 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-24 00:43:30,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:30,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1866909419, now seen corresponding path program 1 times [2024-11-24 00:43:30,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:30,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329971512] [2024-11-24 00:43:30,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:30,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:30,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:30,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:43:30,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:30,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329971512] [2024-11-24 00:43:30,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329971512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:30,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:30,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:43:30,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057093383] [2024-11-24 00:43:30,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:30,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:43:30,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:30,514 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:43:30,515 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:43:30,537 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 167 [2024-11-24 00:43:30,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 149 transitions, 344 flow. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2024-11-24 00:43:30,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:30,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 167 [2024-11-24 00:43:30,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:33,141 INFO L124 PetriNetUnfolderBase]: 8567/18713 cut-off events. [2024-11-24 00:43:33,141 INFO L125 PetriNetUnfolderBase]: For 283/283 co-relation queries the response was YES. [2024-11-24 00:43:33,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31593 conditions, 18713 events. 8567/18713 cut-off events. For 283/283 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170944 event pairs, 7350 based on Foata normal form. 4/15386 useless extension candidates. Maximal degree in co-relation 31530. Up to 12712 conditions per place. [2024-11-24 00:43:33,243 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 75 selfloop transitions, 3 changer transitions 0/150 dead transitions. [2024-11-24 00:43:33,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 150 transitions, 502 flow [2024-11-24 00:43:33,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:43:33,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:43:33,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 367 transitions. [2024-11-24 00:43:33,246 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5494011976047904 [2024-11-24 00:43:33,246 INFO L175 Difference]: Start difference. First operand has 145 places, 149 transitions, 344 flow. Second operand 4 states and 367 transitions. [2024-11-24 00:43:33,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 150 transitions, 502 flow [2024-11-24 00:43:33,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 150 transitions, 500 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-24 00:43:33,251 INFO L231 Difference]: Finished difference. Result has 149 places, 150 transitions, 360 flow [2024-11-24 00:43:33,252 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=360, PETRI_PLACES=149, PETRI_TRANSITIONS=150} [2024-11-24 00:43:33,253 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 9 predicate places. [2024-11-24 00:43:33,253 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 150 transitions, 360 flow [2024-11-24 00:43:33,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2024-11-24 00:43:33,254 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:33,254 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:33,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-24 00:43:33,255 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-24 00:43:33,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:33,256 INFO L85 PathProgramCache]: Analyzing trace with hash 1568180044, now seen corresponding path program 1 times [2024-11-24 00:43:33,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:33,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [510187865] [2024-11-24 00:43:33,256 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:33,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:33,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:33,554 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 00:43:33,554 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:33,554 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [510187865] [2024-11-24 00:43:33,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [510187865] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:33,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:33,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-24 00:43:33,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022340316] [2024-11-24 00:43:33,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:33,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:43:33,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:33,557 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:43:33,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:43:33,574 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 167 [2024-11-24 00:43:33,575 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 150 transitions, 360 flow. Second operand has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 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) [2024-11-24 00:43:33,575 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:33,575 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 167 [2024-11-24 00:43:33,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:35,845 INFO L124 PetriNetUnfolderBase]: 8567/18711 cut-off events. [2024-11-24 00:43:35,846 INFO L125 PetriNetUnfolderBase]: For 299/299 co-relation queries the response was YES. [2024-11-24 00:43:35,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31605 conditions, 18711 events. 8567/18711 cut-off events. For 299/299 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170905 event pairs, 7350 based on Foata normal form. 2/15384 useless extension candidates. Maximal degree in co-relation 31531. Up to 12707 conditions per place. [2024-11-24 00:43:35,935 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 81 selfloop transitions, 3 changer transitions 0/156 dead transitions. [2024-11-24 00:43:35,935 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 156 transitions, 560 flow [2024-11-24 00:43:35,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:43:35,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:43:35,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 370 transitions. [2024-11-24 00:43:35,938 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5538922155688623 [2024-11-24 00:43:35,938 INFO L175 Difference]: Start difference. First operand has 149 places, 150 transitions, 360 flow. Second operand 4 states and 370 transitions. [2024-11-24 00:43:35,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 156 transitions, 560 flow [2024-11-24 00:43:35,941 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 156 transitions, 552 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:43:35,943 INFO L231 Difference]: Finished difference. Result has 152 places, 151 transitions, 376 flow [2024-11-24 00:43:35,944 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=376, PETRI_PLACES=152, PETRI_TRANSITIONS=151} [2024-11-24 00:43:35,945 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 12 predicate places. [2024-11-24 00:43:35,945 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 151 transitions, 376 flow [2024-11-24 00:43:35,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 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) [2024-11-24 00:43:35,946 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:35,946 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-24 00:43:35,952 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-24 00:43:35,953 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-24 00:43:35,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:35,954 INFO L85 PathProgramCache]: Analyzing trace with hash -512476373, now seen corresponding path program 1 times [2024-11-24 00:43:35,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:35,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413221878] [2024-11-24 00:43:35,954 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:35,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:36,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:36,327 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:43:36,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:36,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413221878] [2024-11-24 00:43:36,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413221878] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:43:36,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [462240331] [2024-11-24 00:43:36,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:36,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:43:36,329 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:43:36,331 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:43:36,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-24 00:43:36,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:36,578 INFO L256 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:43:36,580 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:43:36,646 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:43:36,646 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:43:36,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [462240331] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:36,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:43:36,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-24 00:43:36,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139539919] [2024-11-24 00:43:36,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:36,647 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-24 00:43:36,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:36,648 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-24 00:43:36,648 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-24 00:43:36,669 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 167 [2024-11-24 00:43:36,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 151 transitions, 376 flow. Second operand has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 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) [2024-11-24 00:43:36,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:36,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 167 [2024-11-24 00:43:36,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:39,159 INFO L124 PetriNetUnfolderBase]: 8567/18709 cut-off events. [2024-11-24 00:43:39,159 INFO L125 PetriNetUnfolderBase]: For 286/286 co-relation queries the response was YES. [2024-11-24 00:43:39,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31609 conditions, 18709 events. 8567/18709 cut-off events. For 286/286 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170834 event pairs, 7350 based on Foata normal form. 2/15382 useless extension candidates. Maximal degree in co-relation 31555. Up to 12700 conditions per place. [2024-11-24 00:43:39,288 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 70 selfloop transitions, 7 changer transitions 0/150 dead transitions. [2024-11-24 00:43:39,288 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 150 transitions, 526 flow [2024-11-24 00:43:39,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:43:39,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:43:39,290 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 366 transitions. [2024-11-24 00:43:39,291 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5479041916167665 [2024-11-24 00:43:39,291 INFO L175 Difference]: Start difference. First operand has 152 places, 151 transitions, 376 flow. Second operand 4 states and 366 transitions. [2024-11-24 00:43:39,291 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 150 transitions, 526 flow [2024-11-24 00:43:39,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 150 transitions, 522 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:43:39,296 INFO L231 Difference]: Finished difference. Result has 152 places, 150 transitions, 382 flow [2024-11-24 00:43:39,297 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=382, PETRI_PLACES=152, PETRI_TRANSITIONS=150} [2024-11-24 00:43:39,298 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 12 predicate places. [2024-11-24 00:43:39,298 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 150 transitions, 382 flow [2024-11-24 00:43:39,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 74.4) internal successors, (372), 5 states have internal predecessors, (372), 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) [2024-11-24 00:43:39,298 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:39,299 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1] [2024-11-24 00:43:39,310 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-24 00:43:39,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:43:39,499 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-24 00:43:39,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:39,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1293102827, now seen corresponding path program 1 times [2024-11-24 00:43:39,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:39,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227612188] [2024-11-24 00:43:39,500 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:39,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:39,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:39,712 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-24 00:43:39,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:39,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227612188] [2024-11-24 00:43:39,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227612188] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:39,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:39,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:43:39,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [468656347] [2024-11-24 00:43:39,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:39,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:43:39,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:39,714 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:43:39,714 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:43:39,730 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 167 [2024-11-24 00:43:39,731 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 150 transitions, 382 flow. Second operand has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2024-11-24 00:43:39,731 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:39,731 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 167 [2024-11-24 00:43:39,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:41,662 INFO L124 PetriNetUnfolderBase]: 8567/18707 cut-off events. [2024-11-24 00:43:41,662 INFO L125 PetriNetUnfolderBase]: For 312/312 co-relation queries the response was YES. [2024-11-24 00:43:41,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31613 conditions, 18707 events. 8567/18707 cut-off events. For 312/312 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170877 event pairs, 7350 based on Foata normal form. 2/15380 useless extension candidates. Maximal degree in co-relation 31554. Up to 12704 conditions per place. [2024-11-24 00:43:41,769 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 71 selfloop transitions, 6 changer transitions 0/150 dead transitions. [2024-11-24 00:43:41,769 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 150 transitions, 534 flow [2024-11-24 00:43:41,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:43:41,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:43:41,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 366 transitions. [2024-11-24 00:43:41,772 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5479041916167665 [2024-11-24 00:43:41,772 INFO L175 Difference]: Start difference. First operand has 152 places, 150 transitions, 382 flow. Second operand 4 states and 366 transitions. [2024-11-24 00:43:41,773 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 150 transitions, 534 flow [2024-11-24 00:43:41,776 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 150 transitions, 518 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-24 00:43:41,779 INFO L231 Difference]: Finished difference. Result has 151 places, 150 transitions, 382 flow [2024-11-24 00:43:41,779 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=382, PETRI_PLACES=151, PETRI_TRANSITIONS=150} [2024-11-24 00:43:41,780 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 11 predicate places. [2024-11-24 00:43:41,780 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 150 transitions, 382 flow [2024-11-24 00:43:41,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 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) [2024-11-24 00:43:41,781 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:41,781 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:41,781 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-24 00:43:41,781 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-24 00:43:41,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:41,782 INFO L85 PathProgramCache]: Analyzing trace with hash 513203998, now seen corresponding path program 1 times [2024-11-24 00:43:41,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:41,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428430656] [2024-11-24 00:43:41,783 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:41,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:41,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:42,038 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:43:42,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:42,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428430656] [2024-11-24 00:43:42,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428430656] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:43:42,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514559746] [2024-11-24 00:43:42,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:42,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:43:42,040 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:43:42,045 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:43:42,049 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-24 00:43:42,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:42,329 INFO L256 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-24 00:43:42,331 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:43:42,372 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:43:42,372 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:43:42,433 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-24 00:43:42,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514559746] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:43:42,438 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:43:42,438 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-24 00:43:42,438 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171890944] [2024-11-24 00:43:42,438 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:43:42,438 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-24 00:43:42,439 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:42,439 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-24 00:43:42,439 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-24 00:43:42,487 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 167 [2024-11-24 00:43:42,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 150 transitions, 382 flow. Second operand has 10 states, 10 states have (on average 72.9) internal successors, (729), 10 states have internal predecessors, (729), 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) [2024-11-24 00:43:42,490 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:42,490 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 167 [2024-11-24 00:43:42,490 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:45,099 INFO L124 PetriNetUnfolderBase]: 8567/18721 cut-off events. [2024-11-24 00:43:45,099 INFO L125 PetriNetUnfolderBase]: For 342/342 co-relation queries the response was YES. [2024-11-24 00:43:45,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31662 conditions, 18721 events. 8567/18721 cut-off events. For 342/342 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 171057 event pairs, 7350 based on Foata normal form. 4/15396 useless extension candidates. Maximal degree in co-relation 31584. Up to 12702 conditions per place. [2024-11-24 00:43:45,170 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 78 selfloop transitions, 7 changer transitions 0/156 dead transitions. [2024-11-24 00:43:45,170 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 156 transitions, 587 flow [2024-11-24 00:43:45,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-24 00:43:45,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-24 00:43:45,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 582 transitions. [2024-11-24 00:43:45,173 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.49786142001710865 [2024-11-24 00:43:45,173 INFO L175 Difference]: Start difference. First operand has 151 places, 150 transitions, 382 flow. Second operand 7 states and 582 transitions. [2024-11-24 00:43:45,174 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 156 transitions, 587 flow [2024-11-24 00:43:45,176 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 156 transitions, 574 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-24 00:43:45,179 INFO L231 Difference]: Finished difference. Result has 158 places, 153 transitions, 422 flow [2024-11-24 00:43:45,179 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=374, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=422, PETRI_PLACES=158, PETRI_TRANSITIONS=153} [2024-11-24 00:43:45,180 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 18 predicate places. [2024-11-24 00:43:45,180 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 153 transitions, 422 flow [2024-11-24 00:43:45,181 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 72.9) internal successors, (729), 10 states have internal predecessors, (729), 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) [2024-11-24 00:43:45,181 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:45,181 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-24 00:43:45,193 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-24 00:43:45,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:43:45,386 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-24 00:43:45,386 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:45,386 INFO L85 PathProgramCache]: Analyzing trace with hash -1424672994, now seen corresponding path program 2 times [2024-11-24 00:43:45,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:45,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182448409] [2024-11-24 00:43:45,387 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:43:45,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:45,461 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-24 00:43:45,462 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:43:45,518 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-24 00:43:45,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:45,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182448409] [2024-11-24 00:43:45,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182448409] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:43:45,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-24 00:43:45,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-24 00:43:45,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216926892] [2024-11-24 00:43:45,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:43:45,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-24 00:43:45,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:45,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-24 00:43:45,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-24 00:43:45,532 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 167 [2024-11-24 00:43:45,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 153 transitions, 422 flow. Second operand has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 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) [2024-11-24 00:43:45,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:45,533 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 167 [2024-11-24 00:43:45,533 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:47,830 INFO L124 PetriNetUnfolderBase]: 8329/17989 cut-off events. [2024-11-24 00:43:47,830 INFO L125 PetriNetUnfolderBase]: For 276/276 co-relation queries the response was YES. [2024-11-24 00:43:47,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30706 conditions, 17989 events. 8329/17989 cut-off events. For 276/276 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 164443 event pairs, 3381 based on Foata normal form. 22/14681 useless extension candidates. Maximal degree in co-relation 30620. Up to 12412 conditions per place. [2024-11-24 00:43:47,909 INFO L140 encePairwiseOnDemand]: 161/167 looper letters, 122 selfloop transitions, 3 changer transitions 0/198 dead transitions. [2024-11-24 00:43:47,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 198 transitions, 762 flow [2024-11-24 00:43:47,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-24 00:43:47,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-24 00:43:47,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 414 transitions. [2024-11-24 00:43:47,912 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6197604790419161 [2024-11-24 00:43:47,912 INFO L175 Difference]: Start difference. First operand has 158 places, 153 transitions, 422 flow. Second operand 4 states and 414 transitions. [2024-11-24 00:43:47,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 198 transitions, 762 flow [2024-11-24 00:43:47,916 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 157 places, 198 transitions, 754 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-24 00:43:47,919 INFO L231 Difference]: Finished difference. Result has 158 places, 151 transitions, 420 flow [2024-11-24 00:43:47,920 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=410, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=420, PETRI_PLACES=158, PETRI_TRANSITIONS=151} [2024-11-24 00:43:47,921 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 18 predicate places. [2024-11-24 00:43:47,921 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 151 transitions, 420 flow [2024-11-24 00:43:47,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 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) [2024-11-24 00:43:47,921 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:47,922 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1] [2024-11-24 00:43:47,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-24 00:43:47,922 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-24 00:43:47,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:47,923 INFO L85 PathProgramCache]: Analyzing trace with hash -311438707, now seen corresponding path program 1 times [2024-11-24 00:43:47,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:47,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653731967] [2024-11-24 00:43:47,924 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:47,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:48,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:48,690 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 00:43:48,691 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:48,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653731967] [2024-11-24 00:43:48,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1653731967] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:43:48,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1457140100] [2024-11-24 00:43:48,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-24 00:43:48,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:43:48,692 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:43:48,694 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:43:48,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-24 00:43:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-24 00:43:49,150 INFO L256 TraceCheckSpWp]: Trace formula consists of 660 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:43:49,153 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:43:49,225 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 00:43:49,228 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:43:49,381 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 00:43:49,381 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1457140100] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:43:49,381 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:43:49,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-11-24 00:43:49,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976346846] [2024-11-24 00:43:49,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:43:49,382 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-24 00:43:49,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:49,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-24 00:43:49,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-24 00:43:49,485 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 167 [2024-11-24 00:43:49,487 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 151 transitions, 420 flow. Second operand has 18 states, 18 states have (on average 72.83333333333333) internal successors, (1311), 18 states have internal predecessors, (1311), 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) [2024-11-24 00:43:49,488 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:49,488 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 167 [2024-11-24 00:43:49,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:43:53,685 INFO L124 PetriNetUnfolderBase]: 8493/18555 cut-off events. [2024-11-24 00:43:53,685 INFO L125 PetriNetUnfolderBase]: For 492/492 co-relation queries the response was YES. [2024-11-24 00:43:53,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31554 conditions, 18555 events. 8493/18555 cut-off events. For 492/492 co-relation queries the response was YES. Maximal size of possible extension queue 569. Compared 170331 event pairs, 7308 based on Foata normal form. 8/15265 useless extension candidates. Maximal degree in co-relation 31398. Up to 12580 conditions per place. [2024-11-24 00:43:53,766 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 90 selfloop transitions, 15 changer transitions 0/174 dead transitions. [2024-11-24 00:43:53,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 174 transitions, 792 flow [2024-11-24 00:43:53,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-24 00:43:53,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-24 00:43:53,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1172 transitions. [2024-11-24 00:43:53,770 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4678642714570858 [2024-11-24 00:43:53,771 INFO L175 Difference]: Start difference. First operand has 158 places, 151 transitions, 420 flow. Second operand 15 states and 1172 transitions. [2024-11-24 00:43:53,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 174 transitions, 792 flow [2024-11-24 00:43:53,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 174 transitions, 786 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-24 00:43:53,777 INFO L231 Difference]: Finished difference. Result has 174 places, 160 transitions, 548 flow [2024-11-24 00:43:53,778 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=548, PETRI_PLACES=174, PETRI_TRANSITIONS=160} [2024-11-24 00:43:53,781 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 34 predicate places. [2024-11-24 00:43:53,782 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 160 transitions, 548 flow [2024-11-24 00:43:53,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 72.83333333333333) internal successors, (1311), 18 states have internal predecessors, (1311), 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) [2024-11-24 00:43:53,784 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:43:53,784 INFO L206 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1] [2024-11-24 00:43:53,797 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-24 00:43:53,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:43:53,988 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-24 00:43:53,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:43:53,988 INFO L85 PathProgramCache]: Analyzing trace with hash 702489229, now seen corresponding path program 2 times [2024-11-24 00:43:53,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:43:53,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143230439] [2024-11-24 00:43:53,989 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:43:53,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:43:54,219 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:43:54,219 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:43:55,384 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 00:43:55,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:43:55,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143230439] [2024-11-24 00:43:55,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143230439] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:43:55,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [729367385] [2024-11-24 00:43:55,385 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-24 00:43:55,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:43:55,385 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:43:55,387 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:43:55,389 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-24 00:43:56,027 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-24 00:43:56,027 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:43:56,035 INFO L256 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-24 00:43:56,043 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:43:56,190 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 00:43:56,191 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-24 00:43:56,604 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 00:43:56,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [729367385] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-24 00:43:56,605 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-24 00:43:56,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-11-24 00:43:56,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582687029] [2024-11-24 00:43:56,605 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-24 00:43:56,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-24 00:43:56,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:43:56,607 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-24 00:43:56,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-24 00:43:56,787 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 167 [2024-11-24 00:43:56,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 160 transitions, 548 flow. Second operand has 34 states, 34 states have (on average 72.67647058823529) internal successors, (2471), 34 states have internal predecessors, (2471), 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) [2024-11-24 00:43:56,791 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:43:56,791 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 167 [2024-11-24 00:43:56,791 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-24 00:44:02,722 INFO L124 PetriNetUnfolderBase]: 8493/18651 cut-off events. [2024-11-24 00:44:02,722 INFO L125 PetriNetUnfolderBase]: For 1310/1310 co-relation queries the response was YES. [2024-11-24 00:44:02,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32010 conditions, 18651 events. 8493/18651 cut-off events. For 1310/1310 co-relation queries the response was YES. Maximal size of possible extension queue 569. Compared 170779 event pairs, 7308 based on Foata normal form. 16/15369 useless extension candidates. Maximal degree in co-relation 31644. Up to 12580 conditions per place. [2024-11-24 00:44:02,818 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 114 selfloop transitions, 31 changer transitions 0/214 dead transitions. [2024-11-24 00:44:02,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 214 transitions, 1302 flow [2024-11-24 00:44:02,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-24 00:44:02,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-11-24 00:44:02,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2352 transitions. [2024-11-24 00:44:02,828 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4543171721073981 [2024-11-24 00:44:02,828 INFO L175 Difference]: Start difference. First operand has 174 places, 160 transitions, 548 flow. Second operand 31 states and 2352 transitions. [2024-11-24 00:44:02,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 214 transitions, 1302 flow [2024-11-24 00:44:02,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 214 transitions, 1232 flow, removed 30 selfloop flow, removed 5 redundant places. [2024-11-24 00:44:02,839 INFO L231 Difference]: Finished difference. Result has 208 places, 177 transitions, 784 flow [2024-11-24 00:44:02,839 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=510, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=784, PETRI_PLACES=208, PETRI_TRANSITIONS=177} [2024-11-24 00:44:02,840 INFO L279 CegarLoopForPetriNet]: 140 programPoint places, 68 predicate places. [2024-11-24 00:44:02,840 INFO L471 AbstractCegarLoop]: Abstraction has has 208 places, 177 transitions, 784 flow [2024-11-24 00:44:02,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 72.67647058823529) internal successors, (2471), 34 states have internal predecessors, (2471), 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) [2024-11-24 00:44:02,841 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-24 00:44:02,841 INFO L206 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1] [2024-11-24 00:44:02,855 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-24 00:44:03,041 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:44:03,042 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-24 00:44:03,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-24 00:44:03,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1805270387, now seen corresponding path program 3 times [2024-11-24 00:44:03,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-24 00:44:03,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685820146] [2024-11-24 00:44:03,043 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 00:44:03,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-24 00:44:15,323 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2024-11-24 00:44:15,323 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:44:18,747 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-24 00:44:18,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-24 00:44:18,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685820146] [2024-11-24 00:44:18,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685820146] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-24 00:44:18,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [283689964] [2024-11-24 00:44:18,750 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-24 00:44:18,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-24 00:44:18,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 [2024-11-24 00:44:18,752 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-24 00:44:18,756 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3ef85b15-b600-40d3-b5d9-b87a0c2b3118/bin/uautomizer-verify-LYvppIcaGC/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-24 00:44:19,578 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-24 00:44:19,579 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-24 00:44:19,582 INFO L256 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-24 00:44:19,592 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-24 00:44:20,023 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-11-24 00:44:20,023 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-24 00:44:20,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [283689964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-24 00:44:20,024 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-24 00:44:20,024 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [34] total 41 [2024-11-24 00:44:20,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256558398] [2024-11-24 00:44:20,024 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-24 00:44:20,025 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-24 00:44:20,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-24 00:44:20,025 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-24 00:44:20,026 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=286, Invalid=1354, Unknown=0, NotChecked=0, Total=1640 [2024-11-24 00:44:20,088 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 167 [2024-11-24 00:44:20,090 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 208 places, 177 transitions, 784 flow. Second operand has 9 states, 9 states have (on average 70.44444444444444) internal successors, (634), 9 states have internal predecessors, (634), 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) [2024-11-24 00:44:20,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-24 00:44:20,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 167 [2024-11-24 00:44:20,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand