./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/fibonacci.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4c26b5-b0ac-472e-b997-67ac139bed6e/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4c26b5-b0ac-472e-b997-67ac139bed6e/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4c26b5-b0ac-472e-b997-67ac139bed6e/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4c26b5-b0ac-472e-b997-67ac139bed6e/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/fibonacci.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4c26b5-b0ac-472e-b997-67ac139bed6e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4c26b5-b0ac-472e-b997-67ac139bed6e/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 115f061be4541a19227bc1624a8b38d08b679b43ee58fd41d4a05fa6a8fd007e --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:18:28,133 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:18:28,196 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4c26b5-b0ac-472e-b997-67ac139bed6e/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-28 03:18:28,201 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:18:28,202 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:18:28,232 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:18:28,232 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:18:28,232 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:18:28,233 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:18:28,233 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:18:28,233 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:18:28,233 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:18:28,233 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:18:28,233 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:18:28,234 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:18:28,234 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:18:28,234 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:18:28,234 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 03:18:28,234 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:18:28,234 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 03:18:28,234 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:18:28,234 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:18:28,235 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:18:28,235 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:18:28,235 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-28 03:18:28,235 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-28 03:18:28,235 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 03:18:28,235 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:18:28,235 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:18:28,235 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:18:28,235 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:18:28,236 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:18:28,236 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:18:28,236 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:18:28,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:18:28,236 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:18:28,236 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:18:28,236 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:18:28,236 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:18:28,236 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:18:28,237 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:18:28,237 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:18:28,237 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:18:28,237 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:18:28,237 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:18:28,237 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:18:28,237 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:18:28,237 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:18:28,237 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:18:28,237 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:18:28,238 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_7b4c26b5-b0ac-472e-b997-67ac139bed6e/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 115f061be4541a19227bc1624a8b38d08b679b43ee58fd41d4a05fa6a8fd007e [2024-11-28 03:18:28,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:18:28,583 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:18:28,585 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:18:28,587 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:18:28,587 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:18:28,589 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4c26b5-b0ac-472e-b997-67ac139bed6e/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/weaver/fibonacci.wvr.c [2024-11-28 03:18:31,847 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4c26b5-b0ac-472e-b997-67ac139bed6e/bin/uautomizer-verify-aQ6SnzHsRB/data/5f205edbb/2aa4cddf7d484460b98b22fc70282025/FLAG08461c227 [2024-11-28 03:18:32,189 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:18:32,189 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4c26b5-b0ac-472e-b997-67ac139bed6e/sv-benchmarks/c/weaver/fibonacci.wvr.c [2024-11-28 03:18:32,206 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4c26b5-b0ac-472e-b997-67ac139bed6e/bin/uautomizer-verify-aQ6SnzHsRB/data/5f205edbb/2aa4cddf7d484460b98b22fc70282025/FLAG08461c227 [2024-11-28 03:18:32,417 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4c26b5-b0ac-472e-b997-67ac139bed6e/bin/uautomizer-verify-aQ6SnzHsRB/data/5f205edbb/2aa4cddf7d484460b98b22fc70282025 [2024-11-28 03:18:32,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:18:32,423 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:18:32,425 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:18:32,425 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:18:32,431 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:18:32,432 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:32" (1/1) ... [2024-11-28 03:18:32,433 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73afee11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:32, skipping insertion in model container [2024-11-28 03:18:32,433 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:18:32" (1/1) ... [2024-11-28 03:18:32,454 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:18:32,721 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:18:32,740 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:18:32,788 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:18:32,812 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:18:32,813 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:32 WrapperNode [2024-11-28 03:18:32,813 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:18:32,815 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:18:32,815 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:18:32,815 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:18:32,827 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:32" (1/1) ... [2024-11-28 03:18:32,837 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:32" (1/1) ... [2024-11-28 03:18:32,869 INFO L138 Inliner]: procedures = 22, calls = 19, calls flagged for inlining = 13, calls inlined = 17, statements flattened = 220 [2024-11-28 03:18:32,869 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:18:32,870 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:18:32,870 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:18:32,870 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:18:32,879 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:32" (1/1) ... [2024-11-28 03:18:32,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:32" (1/1) ... [2024-11-28 03:18:32,881 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:32" (1/1) ... [2024-11-28 03:18:32,896 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-28 03:18:32,896 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:32" (1/1) ... [2024-11-28 03:18:32,896 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:32" (1/1) ... [2024-11-28 03:18:32,903 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:32" (1/1) ... [2024-11-28 03:18:32,905 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:32" (1/1) ... [2024-11-28 03:18:32,909 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:32" (1/1) ... [2024-11-28 03:18:32,912 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:32" (1/1) ... [2024-11-28 03:18:32,913 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:32" (1/1) ... [2024-11-28 03:18:32,916 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:18:32,917 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:18:32,917 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:18:32,917 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:18:32,918 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:32" (1/1) ... [2024-11-28 03:18:32,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:18:32,941 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4c26b5-b0ac-472e-b997-67ac139bed6e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:18:32,955 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4c26b5-b0ac-472e-b997-67ac139bed6e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:18:32,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4c26b5-b0ac-472e-b997-67ac139bed6e/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:18:32,986 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:18:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-28 03:18:32,987 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-28 03:18:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-28 03:18:32,987 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-28 03:18:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:18:32,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:18:32,987 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:18:32,989 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-28 03:18:33,095 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:18:33,096 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:18:33,708 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-28 03:18:33,708 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:18:34,094 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:18:34,094 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:18:34,095 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:34 BoogieIcfgContainer [2024-11-28 03:18:34,095 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:18:34,100 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:18:34,101 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:18:34,125 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:18:34,125 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:18:32" (1/3) ... [2024-11-28 03:18:34,126 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26743bfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:18:34, skipping insertion in model container [2024-11-28 03:18:34,128 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:18:32" (2/3) ... [2024-11-28 03:18:34,129 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26743bfb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:18:34, skipping insertion in model container [2024-11-28 03:18:34,129 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:18:34" (3/3) ... [2024-11-28 03:18:34,130 INFO L128 eAbstractionObserver]: Analyzing ICFG fibonacci.wvr.c [2024-11-28 03:18:34,156 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:18:34,158 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG fibonacci.wvr.c that has 3 procedures, 87 locations, 1 initial locations, 2 loop locations, and 28 error locations. [2024-11-28 03:18:34,158 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-28 03:18:34,272 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-28 03:18:34,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 96 transitions, 206 flow [2024-11-28 03:18:34,386 INFO L124 PetriNetUnfolderBase]: 10/94 cut-off events. [2024-11-28 03:18:34,390 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-28 03:18:34,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 94 events. 10/94 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 304 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 91. Up to 2 conditions per place. [2024-11-28 03:18:34,397 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 96 transitions, 206 flow [2024-11-28 03:18:34,402 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 89 places, 92 transitions, 193 flow [2024-11-28 03:18:34,409 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:18:34,428 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;@de54e12, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:18:34,428 INFO L334 AbstractCegarLoop]: Starting to check reachability of 58 error locations. [2024-11-28 03:18:34,441 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-28 03:18:34,442 INFO L124 PetriNetUnfolderBase]: 0/14 cut-off events. [2024-11-28 03:18:34,442 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-28 03:18:34,442 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:18:34,443 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-28 03:18:34,444 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:18:34,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:34,455 INFO L85 PathProgramCache]: Analyzing trace with hash -372165075, now seen corresponding path program 1 times [2024-11-28 03:18:34,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:34,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711869244] [2024-11-28 03:18:34,466 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:34,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:34,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:34,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:34,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:34,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711869244] [2024-11-28 03:18:34,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711869244] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:34,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:34,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:34,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855153397] [2024-11-28 03:18:34,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:34,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:18:34,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:34,854 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:18:34,855 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:18:34,892 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 96 [2024-11-28 03:18:34,895 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 92 transitions, 193 flow. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:34,895 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:18:34,895 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 96 [2024-11-28 03:18:34,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:18:35,568 INFO L124 PetriNetUnfolderBase]: 1063/2550 cut-off events. [2024-11-28 03:18:35,569 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2024-11-28 03:18:35,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4200 conditions, 2550 events. 1063/2550 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 19183 event pairs, 412 based on Foata normal form. 60/2083 useless extension candidates. Maximal degree in co-relation 4124. Up to 929 conditions per place. [2024-11-28 03:18:35,602 INFO L140 encePairwiseOnDemand]: 88/96 looper letters, 72 selfloop transitions, 5 changer transitions 0/129 dead transitions. [2024-11-28 03:18:35,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 129 transitions, 427 flow [2024-11-28 03:18:35,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:18:35,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:18:35,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 296 transitions. [2024-11-28 03:18:35,619 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7708333333333334 [2024-11-28 03:18:35,622 INFO L175 Difference]: Start difference. First operand has 89 places, 92 transitions, 193 flow. Second operand 4 states and 296 transitions. [2024-11-28 03:18:35,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 129 transitions, 427 flow [2024-11-28 03:18:35,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 129 transitions, 420 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:18:35,634 INFO L231 Difference]: Finished difference. Result has 91 places, 94 transitions, 222 flow [2024-11-28 03:18:35,637 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=222, PETRI_PLACES=91, PETRI_TRANSITIONS=94} [2024-11-28 03:18:35,642 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 2 predicate places. [2024-11-28 03:18:35,642 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 94 transitions, 222 flow [2024-11-28 03:18:35,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 4 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:35,643 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:18:35,643 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:35,643 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:18:35,643 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:18:35,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:35,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1347785331, now seen corresponding path program 1 times [2024-11-28 03:18:35,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:35,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674779742] [2024-11-28 03:18:35,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:35,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:35,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:35,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:35,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:35,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674779742] [2024-11-28 03:18:35,843 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674779742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:35,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:35,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:18:35,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507688606] [2024-11-28 03:18:35,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:35,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:18:35,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:35,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:18:35,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:18:35,884 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 96 [2024-11-28 03:18:35,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 94 transitions, 222 flow. Second operand has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:35,885 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:18:35,885 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 96 [2024-11-28 03:18:35,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:18:36,315 INFO L124 PetriNetUnfolderBase]: 873/2206 cut-off events. [2024-11-28 03:18:36,315 INFO L125 PetriNetUnfolderBase]: For 372/380 co-relation queries the response was YES. [2024-11-28 03:18:36,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3912 conditions, 2206 events. 873/2206 cut-off events. For 372/380 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 16209 event pairs, 302 based on Foata normal form. 8/1863 useless extension candidates. Maximal degree in co-relation 2162. Up to 662 conditions per place. [2024-11-28 03:18:36,371 INFO L140 encePairwiseOnDemand]: 92/96 looper letters, 50 selfloop transitions, 4 changer transitions 0/110 dead transitions. [2024-11-28 03:18:36,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 110 transitions, 364 flow [2024-11-28 03:18:36,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:18:36,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:18:36,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 281 transitions. [2024-11-28 03:18:36,377 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7317708333333334 [2024-11-28 03:18:36,377 INFO L175 Difference]: Start difference. First operand has 91 places, 94 transitions, 222 flow. Second operand 4 states and 281 transitions. [2024-11-28 03:18:36,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 110 transitions, 364 flow [2024-11-28 03:18:36,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 110 transitions, 364 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:18:36,390 INFO L231 Difference]: Finished difference. Result has 93 places, 93 transitions, 228 flow [2024-11-28 03:18:36,390 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=228, PETRI_PLACES=93, PETRI_TRANSITIONS=93} [2024-11-28 03:18:36,391 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 4 predicate places. [2024-11-28 03:18:36,391 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 93 transitions, 228 flow [2024-11-28 03:18:36,392 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.25) internal successors, (233), 4 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:36,392 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:18:36,392 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:36,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:18:36,392 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:18:36,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:36,393 INFO L85 PathProgramCache]: Analyzing trace with hash -1168358703, now seen corresponding path program 1 times [2024-11-28 03:18:36,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:36,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337776590] [2024-11-28 03:18:36,394 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:36,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:36,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:36,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:36,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337776590] [2024-11-28 03:18:36,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337776590] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:36,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:36,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:18:36,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698145170] [2024-11-28 03:18:36,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:36,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:18:36,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:36,546 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:18:36,546 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:18:36,577 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 96 [2024-11-28 03:18:36,578 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 93 transitions, 228 flow. Second operand has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:36,578 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:18:36,578 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 96 [2024-11-28 03:18:36,578 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:18:36,992 INFO L124 PetriNetUnfolderBase]: 881/2192 cut-off events. [2024-11-28 03:18:36,992 INFO L125 PetriNetUnfolderBase]: For 685/693 co-relation queries the response was YES. [2024-11-28 03:18:36,997 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4006 conditions, 2192 events. 881/2192 cut-off events. For 685/693 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 15886 event pairs, 302 based on Foata normal form. 38/1879 useless extension candidates. Maximal degree in co-relation 2250. Up to 662 conditions per place. [2024-11-28 03:18:37,008 INFO L140 encePairwiseOnDemand]: 92/96 looper letters, 51 selfloop transitions, 4 changer transitions 0/109 dead transitions. [2024-11-28 03:18:37,008 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 109 transitions, 370 flow [2024-11-28 03:18:37,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:18:37,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:18:37,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 277 transitions. [2024-11-28 03:18:37,011 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7213541666666666 [2024-11-28 03:18:37,011 INFO L175 Difference]: Start difference. First operand has 93 places, 93 transitions, 228 flow. Second operand 4 states and 277 transitions. [2024-11-28 03:18:37,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 109 transitions, 370 flow [2024-11-28 03:18:37,017 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 109 transitions, 362 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:18:37,020 INFO L231 Difference]: Finished difference. Result has 92 places, 92 transitions, 224 flow [2024-11-28 03:18:37,020 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=224, PETRI_PLACES=92, PETRI_TRANSITIONS=92} [2024-11-28 03:18:37,022 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 3 predicate places. [2024-11-28 03:18:37,022 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 92 transitions, 224 flow [2024-11-28 03:18:37,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:37,022 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:18:37,022 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:37,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:18:37,022 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:18:37,023 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:37,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1889321792, now seen corresponding path program 1 times [2024-11-28 03:18:37,023 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:37,023 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631588844] [2024-11-28 03:18:37,023 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:37,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:37,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:37,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:37,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:37,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631588844] [2024-11-28 03:18:37,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631588844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:37,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:37,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:37,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021470171] [2024-11-28 03:18:37,129 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:37,129 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:18:37,130 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:37,130 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:18:37,130 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:18:37,165 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 96 [2024-11-28 03:18:37,165 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 92 transitions, 224 flow. Second operand has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:37,165 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:18:37,165 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 96 [2024-11-28 03:18:37,165 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:18:37,685 INFO L124 PetriNetUnfolderBase]: 1246/2933 cut-off events. [2024-11-28 03:18:37,685 INFO L125 PetriNetUnfolderBase]: For 809/844 co-relation queries the response was YES. [2024-11-28 03:18:37,691 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5351 conditions, 2933 events. 1246/2933 cut-off events. For 809/844 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 22797 event pairs, 474 based on Foata normal form. 101/2503 useless extension candidates. Maximal degree in co-relation 2716. Up to 1128 conditions per place. [2024-11-28 03:18:37,708 INFO L140 encePairwiseOnDemand]: 88/96 looper letters, 76 selfloop transitions, 5 changer transitions 0/131 dead transitions. [2024-11-28 03:18:37,708 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 131 transitions, 514 flow [2024-11-28 03:18:37,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:18:37,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:18:37,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 294 transitions. [2024-11-28 03:18:37,710 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.765625 [2024-11-28 03:18:37,710 INFO L175 Difference]: Start difference. First operand has 92 places, 92 transitions, 224 flow. Second operand 4 states and 294 transitions. [2024-11-28 03:18:37,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 131 transitions, 514 flow [2024-11-28 03:18:37,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 131 transitions, 494 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:18:37,718 INFO L231 Difference]: Finished difference. Result has 94 places, 94 transitions, 250 flow [2024-11-28 03:18:37,718 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=250, PETRI_PLACES=94, PETRI_TRANSITIONS=94} [2024-11-28 03:18:37,719 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 5 predicate places. [2024-11-28 03:18:37,719 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 94 transitions, 250 flow [2024-11-28 03:18:37,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.0) internal successors, (224), 4 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:37,720 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:18:37,720 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:37,720 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:18:37,720 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:18:37,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:37,721 INFO L85 PathProgramCache]: Analyzing trace with hash -1859381675, now seen corresponding path program 1 times [2024-11-28 03:18:37,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:37,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555709606] [2024-11-28 03:18:37,721 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:37,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:37,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:37,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:37,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:37,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555709606] [2024-11-28 03:18:37,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555709606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:37,851 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:37,851 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:37,851 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50674638] [2024-11-28 03:18:37,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:37,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:18:37,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:37,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:18:37,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:18:37,884 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 96 [2024-11-28 03:18:37,884 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 94 transitions, 250 flow. Second operand has 5 states, 5 states have (on average 56.6) internal successors, (283), 5 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:37,884 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:18:37,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 96 [2024-11-28 03:18:37,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:18:38,403 INFO L124 PetriNetUnfolderBase]: 1330/2890 cut-off events. [2024-11-28 03:18:38,404 INFO L125 PetriNetUnfolderBase]: For 769/810 co-relation queries the response was YES. [2024-11-28 03:18:38,410 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5842 conditions, 2890 events. 1330/2890 cut-off events. For 769/810 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 20817 event pairs, 386 based on Foata normal form. 23/2635 useless extension candidates. Maximal degree in co-relation 3442. Up to 877 conditions per place. [2024-11-28 03:18:38,423 INFO L140 encePairwiseOnDemand]: 90/96 looper letters, 74 selfloop transitions, 6 changer transitions 0/131 dead transitions. [2024-11-28 03:18:38,423 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 131 transitions, 524 flow [2024-11-28 03:18:38,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:18:38,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:18:38,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 349 transitions. [2024-11-28 03:18:38,425 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7270833333333333 [2024-11-28 03:18:38,425 INFO L175 Difference]: Start difference. First operand has 94 places, 94 transitions, 250 flow. Second operand 5 states and 349 transitions. [2024-11-28 03:18:38,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 131 transitions, 524 flow [2024-11-28 03:18:38,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 131 transitions, 524 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:18:38,433 INFO L231 Difference]: Finished difference. Result has 97 places, 93 transitions, 260 flow [2024-11-28 03:18:38,433 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=260, PETRI_PLACES=97, PETRI_TRANSITIONS=93} [2024-11-28 03:18:38,434 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 8 predicate places. [2024-11-28 03:18:38,434 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 93 transitions, 260 flow [2024-11-28 03:18:38,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.6) internal successors, (283), 5 states have internal predecessors, (283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:38,434 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:18:38,434 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:38,435 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:18:38,435 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:18:38,435 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:38,435 INFO L85 PathProgramCache]: Analyzing trace with hash -1859380650, now seen corresponding path program 1 times [2024-11-28 03:18:38,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:38,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912805193] [2024-11-28 03:18:38,435 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:38,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:38,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:38,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:38,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:38,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912805193] [2024-11-28 03:18:38,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912805193] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:38,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:38,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:38,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788709019] [2024-11-28 03:18:38,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:38,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:18:38,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:38,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:18:38,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:18:38,519 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 96 [2024-11-28 03:18:38,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 93 transitions, 260 flow. Second operand has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:38,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:18:38,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 96 [2024-11-28 03:18:38,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:18:38,950 INFO L124 PetriNetUnfolderBase]: 1112/2762 cut-off events. [2024-11-28 03:18:38,950 INFO L125 PetriNetUnfolderBase]: For 1214/1237 co-relation queries the response was YES. [2024-11-28 03:18:38,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5470 conditions, 2762 events. 1112/2762 cut-off events. For 1214/1237 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 21406 event pairs, 515 based on Foata normal form. 49/2477 useless extension candidates. Maximal degree in co-relation 2020. Up to 1170 conditions per place. [2024-11-28 03:18:38,970 INFO L140 encePairwiseOnDemand]: 91/96 looper letters, 76 selfloop transitions, 4 changer transitions 0/131 dead transitions. [2024-11-28 03:18:38,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 131 transitions, 532 flow [2024-11-28 03:18:38,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:18:38,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:18:38,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 291 transitions. [2024-11-28 03:18:38,971 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7578125 [2024-11-28 03:18:38,972 INFO L175 Difference]: Start difference. First operand has 97 places, 93 transitions, 260 flow. Second operand 4 states and 291 transitions. [2024-11-28 03:18:38,972 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 131 transitions, 532 flow [2024-11-28 03:18:38,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 131 transitions, 520 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 03:18:38,981 INFO L231 Difference]: Finished difference. Result has 96 places, 92 transitions, 250 flow [2024-11-28 03:18:38,981 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=250, PETRI_PLACES=96, PETRI_TRANSITIONS=92} [2024-11-28 03:18:38,983 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 7 predicate places. [2024-11-28 03:18:38,983 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 92 transitions, 250 flow [2024-11-28 03:18:38,984 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.75) internal successors, (223), 4 states have internal predecessors, (223), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:38,984 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:18:38,985 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:38,985 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:18:38,985 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:18:38,985 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:38,986 INFO L85 PathProgramCache]: Analyzing trace with hash 1560567403, now seen corresponding path program 1 times [2024-11-28 03:18:38,986 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:38,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1395740461] [2024-11-28 03:18:38,986 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:38,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:39,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:39,092 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:39,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:39,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1395740461] [2024-11-28 03:18:39,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1395740461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:39,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:39,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:18:39,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2137570028] [2024-11-28 03:18:39,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:39,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:18:39,093 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:39,093 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:18:39,093 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:18:39,117 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 96 [2024-11-28 03:18:39,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 92 transitions, 250 flow. Second operand has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:39,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:18:39,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 96 [2024-11-28 03:18:39,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:18:39,499 INFO L124 PetriNetUnfolderBase]: 1010/2629 cut-off events. [2024-11-28 03:18:39,499 INFO L125 PetriNetUnfolderBase]: For 956/983 co-relation queries the response was YES. [2024-11-28 03:18:39,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4991 conditions, 2629 events. 1010/2629 cut-off events. For 956/983 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 20914 event pairs, 329 based on Foata normal form. 27/2289 useless extension candidates. Maximal degree in co-relation 2586. Up to 813 conditions per place. [2024-11-28 03:18:39,520 INFO L140 encePairwiseOnDemand]: 92/96 looper letters, 53 selfloop transitions, 4 changer transitions 0/109 dead transitions. [2024-11-28 03:18:39,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 109 transitions, 422 flow [2024-11-28 03:18:39,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:18:39,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:18:39,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 280 transitions. [2024-11-28 03:18:39,524 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2024-11-28 03:18:39,524 INFO L175 Difference]: Start difference. First operand has 96 places, 92 transitions, 250 flow. Second operand 4 states and 280 transitions. [2024-11-28 03:18:39,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 109 transitions, 422 flow [2024-11-28 03:18:39,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 109 transitions, 411 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:18:39,532 INFO L231 Difference]: Finished difference. Result has 96 places, 91 transitions, 250 flow [2024-11-28 03:18:39,532 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=250, PETRI_PLACES=96, PETRI_TRANSITIONS=91} [2024-11-28 03:18:39,535 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 7 predicate places. [2024-11-28 03:18:39,535 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 91 transitions, 250 flow [2024-11-28 03:18:39,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.75) internal successors, (235), 4 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:39,535 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:18:39,535 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:39,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:18:39,536 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:18:39,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:39,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1806256300, now seen corresponding path program 1 times [2024-11-28 03:18:39,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:39,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417986638] [2024-11-28 03:18:39,537 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:39,537 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:39,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:39,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:39,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417986638] [2024-11-28 03:18:39,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417986638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:39,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:39,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:18:39,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592028921] [2024-11-28 03:18:39,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:39,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:18:39,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:39,730 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:18:39,730 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:18:39,789 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 96 [2024-11-28 03:18:39,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 91 transitions, 250 flow. Second operand has 6 states, 6 states have (on average 53.333333333333336) internal successors, (320), 6 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:39,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:18:39,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 96 [2024-11-28 03:18:39,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:18:40,408 INFO L124 PetriNetUnfolderBase]: 1293/2819 cut-off events. [2024-11-28 03:18:40,409 INFO L125 PetriNetUnfolderBase]: For 1297/1348 co-relation queries the response was YES. [2024-11-28 03:18:40,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5812 conditions, 2819 events. 1293/2819 cut-off events. For 1297/1348 co-relation queries the response was YES. Maximal size of possible extension queue 137. Compared 20224 event pairs, 338 based on Foata normal form. 97/2634 useless extension candidates. Maximal degree in co-relation 3384. Up to 816 conditions per place. [2024-11-28 03:18:40,427 INFO L140 encePairwiseOnDemand]: 88/96 looper letters, 90 selfloop transitions, 9 changer transitions 0/148 dead transitions. [2024-11-28 03:18:40,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 148 transitions, 640 flow [2024-11-28 03:18:40,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:18:40,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:18:40,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 402 transitions. [2024-11-28 03:18:40,432 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6979166666666666 [2024-11-28 03:18:40,432 INFO L175 Difference]: Start difference. First operand has 96 places, 91 transitions, 250 flow. Second operand 6 states and 402 transitions. [2024-11-28 03:18:40,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 148 transitions, 640 flow [2024-11-28 03:18:40,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 148 transitions, 614 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:18:40,443 INFO L231 Difference]: Finished difference. Result has 98 places, 91 transitions, 267 flow [2024-11-28 03:18:40,444 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=267, PETRI_PLACES=98, PETRI_TRANSITIONS=91} [2024-11-28 03:18:40,448 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 9 predicate places. [2024-11-28 03:18:40,448 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 91 transitions, 267 flow [2024-11-28 03:18:40,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.333333333333336) internal successors, (320), 6 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:40,449 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:18:40,449 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:40,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:18:40,449 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:18:40,450 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:40,450 INFO L85 PathProgramCache]: Analyzing trace with hash 1132918276, now seen corresponding path program 1 times [2024-11-28 03:18:40,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:40,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091391677] [2024-11-28 03:18:40,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:40,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:40,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:40,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:40,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:40,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091391677] [2024-11-28 03:18:40,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091391677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:40,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:40,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:18:40,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [365806430] [2024-11-28 03:18:40,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:40,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:18:40,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:40,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:18:40,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:18:40,578 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 96 [2024-11-28 03:18:40,579 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 91 transitions, 267 flow. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:40,579 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:18:40,579 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 96 [2024-11-28 03:18:40,579 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:18:41,011 INFO L124 PetriNetUnfolderBase]: 1012/2582 cut-off events. [2024-11-28 03:18:41,011 INFO L125 PetriNetUnfolderBase]: For 1882/1966 co-relation queries the response was YES. [2024-11-28 03:18:41,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5208 conditions, 2582 events. 1012/2582 cut-off events. For 1882/1966 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 20098 event pairs, 331 based on Foata normal form. 103/2336 useless extension candidates. Maximal degree in co-relation 2662. Up to 817 conditions per place. [2024-11-28 03:18:41,025 INFO L140 encePairwiseOnDemand]: 92/96 looper letters, 56 selfloop transitions, 4 changer transitions 0/109 dead transitions. [2024-11-28 03:18:41,025 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 109 transitions, 457 flow [2024-11-28 03:18:41,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:18:41,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:18:41,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 276 transitions. [2024-11-28 03:18:41,049 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.71875 [2024-11-28 03:18:41,049 INFO L175 Difference]: Start difference. First operand has 98 places, 91 transitions, 267 flow. Second operand 4 states and 276 transitions. [2024-11-28 03:18:41,049 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 109 transitions, 457 flow [2024-11-28 03:18:41,053 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 109 transitions, 435 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 03:18:41,054 INFO L231 Difference]: Finished difference. Result has 96 places, 90 transitions, 258 flow [2024-11-28 03:18:41,055 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=258, PETRI_PLACES=96, PETRI_TRANSITIONS=90} [2024-11-28 03:18:41,055 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 7 predicate places. [2024-11-28 03:18:41,055 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 90 transitions, 258 flow [2024-11-28 03:18:41,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:41,056 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:18:41,056 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:41,056 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:18:41,056 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:18:41,056 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:41,056 INFO L85 PathProgramCache]: Analyzing trace with hash 787947419, now seen corresponding path program 1 times [2024-11-28 03:18:41,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:41,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472311425] [2024-11-28 03:18:41,057 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:41,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:41,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:41,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:41,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:41,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472311425] [2024-11-28 03:18:41,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472311425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:41,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:41,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:18:41,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043799630] [2024-11-28 03:18:41,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:41,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:18:41,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:41,133 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:18:41,134 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:18:41,189 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 96 [2024-11-28 03:18:41,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 90 transitions, 258 flow. Second operand has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:41,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:18:41,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 96 [2024-11-28 03:18:41,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:18:41,737 INFO L124 PetriNetUnfolderBase]: 1252/2772 cut-off events. [2024-11-28 03:18:41,737 INFO L125 PetriNetUnfolderBase]: For 1338/1363 co-relation queries the response was YES. [2024-11-28 03:18:41,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5847 conditions, 2772 events. 1252/2772 cut-off events. For 1338/1363 co-relation queries the response was YES. Maximal size of possible extension queue 149. Compared 20083 event pairs, 485 based on Foata normal form. 59/2517 useless extension candidates. Maximal degree in co-relation 2883. Up to 1180 conditions per place. [2024-11-28 03:18:41,777 INFO L140 encePairwiseOnDemand]: 89/96 looper letters, 113 selfloop transitions, 8 changer transitions 0/167 dead transitions. [2024-11-28 03:18:41,778 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 167 transitions, 758 flow [2024-11-28 03:18:41,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:18:41,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:18:41,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 424 transitions. [2024-11-28 03:18:41,780 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7361111111111112 [2024-11-28 03:18:41,780 INFO L175 Difference]: Start difference. First operand has 96 places, 90 transitions, 258 flow. Second operand 6 states and 424 transitions. [2024-11-28 03:18:41,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 167 transitions, 758 flow [2024-11-28 03:18:41,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 167 transitions, 721 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-28 03:18:41,792 INFO L231 Difference]: Finished difference. Result has 98 places, 91 transitions, 274 flow [2024-11-28 03:18:41,792 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=239, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=274, PETRI_PLACES=98, PETRI_TRANSITIONS=91} [2024-11-28 03:18:41,795 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 9 predicate places. [2024-11-28 03:18:41,795 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 91 transitions, 274 flow [2024-11-28 03:18:41,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 53.8) internal successors, (269), 5 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:41,796 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:18:41,796 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:41,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:18:41,797 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:18:41,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:41,798 INFO L85 PathProgramCache]: Analyzing trace with hash 760729006, now seen corresponding path program 1 times [2024-11-28 03:18:41,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:41,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [121630532] [2024-11-28 03:18:41,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:41,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:41,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:41,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:41,881 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:41,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [121630532] [2024-11-28 03:18:41,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [121630532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:41,882 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:41,882 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:41,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818974346] [2024-11-28 03:18:41,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:41,884 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:18:41,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:41,884 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:18:41,884 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:18:41,918 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 96 [2024-11-28 03:18:41,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 91 transitions, 274 flow. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 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) [2024-11-28 03:18:41,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:18:41,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 96 [2024-11-28 03:18:41,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:18:42,318 INFO L124 PetriNetUnfolderBase]: 1093/2619 cut-off events. [2024-11-28 03:18:42,319 INFO L125 PetriNetUnfolderBase]: For 2292/2372 co-relation queries the response was YES. [2024-11-28 03:18:42,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5432 conditions, 2619 events. 1093/2619 cut-off events. For 2292/2372 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 19844 event pairs, 519 based on Foata normal form. 113/2383 useless extension candidates. Maximal degree in co-relation 4102. Up to 1178 conditions per place. [2024-11-28 03:18:42,333 INFO L140 encePairwiseOnDemand]: 91/96 looper letters, 80 selfloop transitions, 4 changer transitions 0/131 dead transitions. [2024-11-28 03:18:42,333 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 131 transitions, 602 flow [2024-11-28 03:18:42,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:18:42,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:18:42,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 289 transitions. [2024-11-28 03:18:42,335 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7526041666666666 [2024-11-28 03:18:42,335 INFO L175 Difference]: Start difference. First operand has 98 places, 91 transitions, 274 flow. Second operand 4 states and 289 transitions. [2024-11-28 03:18:42,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 131 transitions, 602 flow [2024-11-28 03:18:42,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 131 transitions, 559 flow, removed 9 selfloop flow, removed 5 redundant places. [2024-11-28 03:18:42,342 INFO L231 Difference]: Finished difference. Result has 96 places, 90 transitions, 257 flow [2024-11-28 03:18:42,342 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=257, PETRI_PLACES=96, PETRI_TRANSITIONS=90} [2024-11-28 03:18:42,343 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 7 predicate places. [2024-11-28 03:18:42,343 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 90 transitions, 257 flow [2024-11-28 03:18:42,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 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) [2024-11-28 03:18:42,343 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:18:42,343 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:42,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:18:42,343 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:18:42,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:42,344 INFO L85 PathProgramCache]: Analyzing trace with hash 760727981, now seen corresponding path program 1 times [2024-11-28 03:18:42,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:42,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786786905] [2024-11-28 03:18:42,344 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:42,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:42,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:42,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:42,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:42,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786786905] [2024-11-28 03:18:42,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786786905] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:42,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:42,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:42,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079066394] [2024-11-28 03:18:42,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:42,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:18:42,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:42,465 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:18:42,465 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:18:42,504 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 96 [2024-11-28 03:18:42,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 90 transitions, 257 flow. Second operand has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:42,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:18:42,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 96 [2024-11-28 03:18:42,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:18:42,937 INFO L124 PetriNetUnfolderBase]: 1264/2720 cut-off events. [2024-11-28 03:18:42,937 INFO L125 PetriNetUnfolderBase]: For 1563/1663 co-relation queries the response was YES. [2024-11-28 03:18:42,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5729 conditions, 2720 events. 1264/2720 cut-off events. For 1563/1663 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 19444 event pairs, 331 based on Foata normal form. 100/2537 useless extension candidates. Maximal degree in co-relation 4343. Up to 843 conditions per place. [2024-11-28 03:18:42,955 INFO L140 encePairwiseOnDemand]: 90/96 looper letters, 78 selfloop transitions, 6 changer transitions 0/129 dead transitions. [2024-11-28 03:18:42,956 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 129 transitions, 563 flow [2024-11-28 03:18:42,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:18:42,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:18:42,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 347 transitions. [2024-11-28 03:18:42,958 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7229166666666667 [2024-11-28 03:18:42,958 INFO L175 Difference]: Start difference. First operand has 96 places, 90 transitions, 257 flow. Second operand 5 states and 347 transitions. [2024-11-28 03:18:42,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 129 transitions, 563 flow [2024-11-28 03:18:42,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 129 transitions, 557 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:18:42,965 INFO L231 Difference]: Finished difference. Result has 97 places, 89 transitions, 261 flow [2024-11-28 03:18:42,965 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=249, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=261, PETRI_PLACES=97, PETRI_TRANSITIONS=89} [2024-11-28 03:18:42,966 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 8 predicate places. [2024-11-28 03:18:42,966 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 89 transitions, 261 flow [2024-11-28 03:18:42,966 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.0) internal successors, (285), 5 states have internal predecessors, (285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:42,966 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:18:42,967 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:42,967 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 03:18:42,967 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:18:42,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:42,967 INFO L85 PathProgramCache]: Analyzing trace with hash -645491785, now seen corresponding path program 1 times [2024-11-28 03:18:42,968 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:42,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521168793] [2024-11-28 03:18:42,968 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:42,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:42,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:43,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:43,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:43,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521168793] [2024-11-28 03:18:43,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521168793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:43,018 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:43,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:43,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947482221] [2024-11-28 03:18:43,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:43,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:18:43,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:43,019 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:18:43,019 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:18:43,046 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 96 [2024-11-28 03:18:43,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 89 transitions, 261 flow. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 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) [2024-11-28 03:18:43,046 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:18:43,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 96 [2024-11-28 03:18:43,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:18:43,459 INFO L124 PetriNetUnfolderBase]: 1379/3226 cut-off events. [2024-11-28 03:18:43,459 INFO L125 PetriNetUnfolderBase]: For 1869/1950 co-relation queries the response was YES. [2024-11-28 03:18:43,466 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6478 conditions, 3226 events. 1379/3226 cut-off events. For 1869/1950 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 25088 event pairs, 586 based on Foata normal form. 149/2946 useless extension candidates. Maximal degree in co-relation 5344. Up to 1307 conditions per place. [2024-11-28 03:18:43,478 INFO L140 encePairwiseOnDemand]: 88/96 looper letters, 81 selfloop transitions, 6 changer transitions 0/130 dead transitions. [2024-11-28 03:18:43,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 130 transitions, 569 flow [2024-11-28 03:18:43,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:18:43,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:18:43,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 296 transitions. [2024-11-28 03:18:43,480 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7708333333333334 [2024-11-28 03:18:43,480 INFO L175 Difference]: Start difference. First operand has 97 places, 89 transitions, 261 flow. Second operand 4 states and 296 transitions. [2024-11-28 03:18:43,480 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 130 transitions, 569 flow [2024-11-28 03:18:43,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 130 transitions, 548 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:18:43,486 INFO L231 Difference]: Finished difference. Result has 99 places, 91 transitions, 290 flow [2024-11-28 03:18:43,487 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=290, PETRI_PLACES=99, PETRI_TRANSITIONS=91} [2024-11-28 03:18:43,488 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 10 predicate places. [2024-11-28 03:18:43,488 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 91 transitions, 290 flow [2024-11-28 03:18:43,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 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) [2024-11-28 03:18:43,489 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:18:43,489 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:43,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:18:43,489 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:18:43,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:43,490 INFO L85 PathProgramCache]: Analyzing trace with hash 2107731751, now seen corresponding path program 1 times [2024-11-28 03:18:43,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:43,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127315305] [2024-11-28 03:18:43,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:43,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:43,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:43,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:43,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:43,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127315305] [2024-11-28 03:18:43,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127315305] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:43,610 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:43,610 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:18:43,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312967934] [2024-11-28 03:18:43,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:43,611 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:18:43,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:43,611 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:18:43,612 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:18:43,668 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 96 [2024-11-28 03:18:43,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 91 transitions, 290 flow. Second operand has 6 states, 6 states have (on average 53.666666666666664) internal successors, (322), 6 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:43,669 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:18:43,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 96 [2024-11-28 03:18:43,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:18:44,192 INFO L124 PetriNetUnfolderBase]: 1414/3063 cut-off events. [2024-11-28 03:18:44,192 INFO L125 PetriNetUnfolderBase]: For 2674/2846 co-relation queries the response was YES. [2024-11-28 03:18:44,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6782 conditions, 3063 events. 1414/3063 cut-off events. For 2674/2846 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 22421 event pairs, 383 based on Foata normal form. 211/2947 useless extension candidates. Maximal degree in co-relation 5324. Up to 931 conditions per place. [2024-11-28 03:18:44,210 INFO L140 encePairwiseOnDemand]: 88/96 looper letters, 103 selfloop transitions, 9 changer transitions 0/157 dead transitions. [2024-11-28 03:18:44,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 157 transitions, 802 flow [2024-11-28 03:18:44,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:18:44,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:18:44,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 399 transitions. [2024-11-28 03:18:44,212 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6927083333333334 [2024-11-28 03:18:44,212 INFO L175 Difference]: Start difference. First operand has 99 places, 91 transitions, 290 flow. Second operand 6 states and 399 transitions. [2024-11-28 03:18:44,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 157 transitions, 802 flow [2024-11-28 03:18:44,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 157 transitions, 802 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:18:44,220 INFO L231 Difference]: Finished difference. Result has 104 places, 91 transitions, 315 flow [2024-11-28 03:18:44,220 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=315, PETRI_PLACES=104, PETRI_TRANSITIONS=91} [2024-11-28 03:18:44,222 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 15 predicate places. [2024-11-28 03:18:44,222 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 91 transitions, 315 flow [2024-11-28 03:18:44,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 53.666666666666664) internal successors, (322), 6 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:44,223 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:18:44,223 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:44,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:18:44,223 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:18:44,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:44,224 INFO L85 PathProgramCache]: Analyzing trace with hash 1464591931, now seen corresponding path program 1 times [2024-11-28 03:18:44,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:44,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438607327] [2024-11-28 03:18:44,224 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:44,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:44,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:44,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:44,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438607327] [2024-11-28 03:18:44,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438607327] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:44,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:44,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:18:44,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555481612] [2024-11-28 03:18:44,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:44,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:18:44,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:44,322 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:18:44,322 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:18:44,414 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 96 [2024-11-28 03:18:44,415 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 91 transitions, 315 flow. Second operand has 6 states, 6 states have (on average 51.5) internal successors, (309), 6 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:44,415 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:18:44,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 96 [2024-11-28 03:18:44,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:18:45,255 INFO L124 PetriNetUnfolderBase]: 2099/4807 cut-off events. [2024-11-28 03:18:45,255 INFO L125 PetriNetUnfolderBase]: For 4844/5046 co-relation queries the response was YES. [2024-11-28 03:18:45,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11047 conditions, 4807 events. 2099/4807 cut-off events. For 4844/5046 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 39752 event pairs, 512 based on Foata normal form. 232/4615 useless extension candidates. Maximal degree in co-relation 6345. Up to 1211 conditions per place. [2024-11-28 03:18:45,289 INFO L140 encePairwiseOnDemand]: 86/96 looper letters, 147 selfloop transitions, 14 changer transitions 0/202 dead transitions. [2024-11-28 03:18:45,289 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 202 transitions, 1067 flow [2024-11-28 03:18:45,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:18:45,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 03:18:45,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 486 transitions. [2024-11-28 03:18:45,292 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7232142857142857 [2024-11-28 03:18:45,292 INFO L175 Difference]: Start difference. First operand has 104 places, 91 transitions, 315 flow. Second operand 7 states and 486 transitions. [2024-11-28 03:18:45,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 202 transitions, 1067 flow [2024-11-28 03:18:45,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 202 transitions, 1009 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 03:18:45,316 INFO L231 Difference]: Finished difference. Result has 108 places, 97 transitions, 384 flow [2024-11-28 03:18:45,316 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=384, PETRI_PLACES=108, PETRI_TRANSITIONS=97} [2024-11-28 03:18:45,317 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 19 predicate places. [2024-11-28 03:18:45,317 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 97 transitions, 384 flow [2024-11-28 03:18:45,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.5) internal successors, (309), 6 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:45,317 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:18:45,318 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:45,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:18:45,318 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:18:45,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:45,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1862492755, now seen corresponding path program 1 times [2024-11-28 03:18:45,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:45,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783098085] [2024-11-28 03:18:45,319 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:45,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:45,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:45,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:45,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:45,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783098085] [2024-11-28 03:18:45,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783098085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:45,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:45,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:45,386 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847481696] [2024-11-28 03:18:45,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:45,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:18:45,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:45,387 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:18:45,387 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:18:45,409 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 96 [2024-11-28 03:18:45,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 97 transitions, 384 flow. Second operand has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:45,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:18:45,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 96 [2024-11-28 03:18:45,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:18:45,977 INFO L124 PetriNetUnfolderBase]: 2179/4833 cut-off events. [2024-11-28 03:18:45,977 INFO L125 PetriNetUnfolderBase]: For 7374/7666 co-relation queries the response was YES. [2024-11-28 03:18:46,023 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11694 conditions, 4833 events. 2179/4833 cut-off events. For 7374/7666 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 39419 event pairs, 942 based on Foata normal form. 249/4669 useless extension candidates. Maximal degree in co-relation 7609. Up to 2118 conditions per place. [2024-11-28 03:18:46,040 INFO L140 encePairwiseOnDemand]: 91/96 looper letters, 100 selfloop transitions, 5 changer transitions 0/151 dead transitions. [2024-11-28 03:18:46,040 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 151 transitions, 911 flow [2024-11-28 03:18:46,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:18:46,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:18:46,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 287 transitions. [2024-11-28 03:18:46,042 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7473958333333334 [2024-11-28 03:18:46,042 INFO L175 Difference]: Start difference. First operand has 108 places, 97 transitions, 384 flow. Second operand 4 states and 287 transitions. [2024-11-28 03:18:46,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 151 transitions, 911 flow [2024-11-28 03:18:46,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 151 transitions, 891 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-28 03:18:46,066 INFO L231 Difference]: Finished difference. Result has 109 places, 97 transitions, 387 flow [2024-11-28 03:18:46,067 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=387, PETRI_PLACES=109, PETRI_TRANSITIONS=97} [2024-11-28 03:18:46,067 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 20 predicate places. [2024-11-28 03:18:46,067 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 97 transitions, 387 flow [2024-11-28 03:18:46,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:46,068 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:18:46,068 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:46,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:18:46,068 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:18:46,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:46,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1842321381, now seen corresponding path program 1 times [2024-11-28 03:18:46,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:46,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084304446] [2024-11-28 03:18:46,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:46,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:46,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:46,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:46,151 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:46,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084304446] [2024-11-28 03:18:46,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084304446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:46,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:46,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:18:46,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78641848] [2024-11-28 03:18:46,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:46,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:18:46,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:46,153 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:18:46,153 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:18:46,181 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 96 [2024-11-28 03:18:46,181 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 97 transitions, 387 flow. Second operand has 5 states, 5 states have (on average 56.0) internal successors, (280), 5 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:46,181 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:18:46,181 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 96 [2024-11-28 03:18:46,182 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:18:47,033 INFO L124 PetriNetUnfolderBase]: 2586/6161 cut-off events. [2024-11-28 03:18:47,033 INFO L125 PetriNetUnfolderBase]: For 8697/8892 co-relation queries the response was YES. [2024-11-28 03:18:47,051 INFO L83 FinitePrefix]: Finished finitePrefix Result has 14751 conditions, 6161 events. 2586/6161 cut-off events. For 8697/8892 co-relation queries the response was YES. Maximal size of possible extension queue 304. Compared 54582 event pairs, 690 based on Foata normal form. 267/5861 useless extension candidates. Maximal degree in co-relation 9214. Up to 1628 conditions per place. [2024-11-28 03:18:47,073 INFO L140 encePairwiseOnDemand]: 90/96 looper letters, 115 selfloop transitions, 10 changer transitions 0/166 dead transitions. [2024-11-28 03:18:47,073 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 166 transitions, 911 flow [2024-11-28 03:18:47,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:18:47,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:18:47,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 369 transitions. [2024-11-28 03:18:47,075 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.76875 [2024-11-28 03:18:47,075 INFO L175 Difference]: Start difference. First operand has 109 places, 97 transitions, 387 flow. Second operand 5 states and 369 transitions. [2024-11-28 03:18:47,075 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 166 transitions, 911 flow [2024-11-28 03:18:47,116 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 166 transitions, 895 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:18:47,118 INFO L231 Difference]: Finished difference. Result has 113 places, 98 transitions, 427 flow [2024-11-28 03:18:47,118 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=376, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=427, PETRI_PLACES=113, PETRI_TRANSITIONS=98} [2024-11-28 03:18:47,119 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 24 predicate places. [2024-11-28 03:18:47,119 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 98 transitions, 427 flow [2024-11-28 03:18:47,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.0) internal successors, (280), 5 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:47,120 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:18:47,120 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:47,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:18:47,120 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:18:47,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:47,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1694324694, now seen corresponding path program 1 times [2024-11-28 03:18:47,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:47,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069363893] [2024-11-28 03:18:47,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:47,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:47,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:47,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:47,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:47,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069363893] [2024-11-28 03:18:47,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069363893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:47,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:47,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:47,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [535806910] [2024-11-28 03:18:47,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:47,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:18:47,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:47,182 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:18:47,182 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:18:47,212 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 96 [2024-11-28 03:18:47,212 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 98 transitions, 427 flow. Second operand has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:47,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:18:47,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 96 [2024-11-28 03:18:47,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:18:48,104 INFO L124 PetriNetUnfolderBase]: 3213/7418 cut-off events. [2024-11-28 03:18:48,104 INFO L125 PetriNetUnfolderBase]: For 12698/13028 co-relation queries the response was YES. [2024-11-28 03:18:48,125 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17990 conditions, 7418 events. 3213/7418 cut-off events. For 12698/13028 co-relation queries the response was YES. Maximal size of possible extension queue 363. Compared 67448 event pairs, 1525 based on Foata normal form. 432/6977 useless extension candidates. Maximal degree in co-relation 9302. Up to 3150 conditions per place. [2024-11-28 03:18:48,148 INFO L140 encePairwiseOnDemand]: 88/96 looper letters, 111 selfloop transitions, 7 changer transitions 0/159 dead transitions. [2024-11-28 03:18:48,148 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 159 transitions, 1071 flow [2024-11-28 03:18:48,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:18:48,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:18:48,150 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 294 transitions. [2024-11-28 03:18:48,150 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.765625 [2024-11-28 03:18:48,150 INFO L175 Difference]: Start difference. First operand has 113 places, 98 transitions, 427 flow. Second operand 4 states and 294 transitions. [2024-11-28 03:18:48,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 159 transitions, 1071 flow [2024-11-28 03:18:48,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 159 transitions, 1036 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:18:48,189 INFO L231 Difference]: Finished difference. Result has 115 places, 100 transitions, 456 flow [2024-11-28 03:18:48,189 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=456, PETRI_PLACES=115, PETRI_TRANSITIONS=100} [2024-11-28 03:18:48,190 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 26 predicate places. [2024-11-28 03:18:48,190 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 100 transitions, 456 flow [2024-11-28 03:18:48,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:48,190 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:18:48,190 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:48,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-28 03:18:48,190 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:18:48,191 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:48,191 INFO L85 PathProgramCache]: Analyzing trace with hash 1942041184, now seen corresponding path program 1 times [2024-11-28 03:18:48,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:48,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106371445] [2024-11-28 03:18:48,191 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:48,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:48,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:48,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:48,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:48,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106371445] [2024-11-28 03:18:48,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106371445] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:48,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:48,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:18:48,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873743473] [2024-11-28 03:18:48,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:48,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:18:48,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:48,315 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:18:48,315 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:18:48,339 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 96 [2024-11-28 03:18:48,340 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 100 transitions, 456 flow. Second operand has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:48,340 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:18:48,340 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 96 [2024-11-28 03:18:48,340 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:18:49,153 INFO L124 PetriNetUnfolderBase]: 2584/6620 cut-off events. [2024-11-28 03:18:49,153 INFO L125 PetriNetUnfolderBase]: For 12289/12596 co-relation queries the response was YES. [2024-11-28 03:18:49,181 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16242 conditions, 6620 events. 2584/6620 cut-off events. For 12289/12596 co-relation queries the response was YES. Maximal size of possible extension queue 329. Compared 62029 event pairs, 643 based on Foata normal form. 305/6249 useless extension candidates. Maximal degree in co-relation 12015. Up to 2330 conditions per place. [2024-11-28 03:18:49,207 INFO L140 encePairwiseOnDemand]: 92/96 looper letters, 66 selfloop transitions, 11 changer transitions 0/122 dead transitions. [2024-11-28 03:18:49,207 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 122 transitions, 713 flow [2024-11-28 03:18:49,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:18:49,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:18:49,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 281 transitions. [2024-11-28 03:18:49,209 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7317708333333334 [2024-11-28 03:18:49,209 INFO L175 Difference]: Start difference. First operand has 115 places, 100 transitions, 456 flow. Second operand 4 states and 281 transitions. [2024-11-28 03:18:49,209 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 122 transitions, 713 flow [2024-11-28 03:18:49,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 122 transitions, 713 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-28 03:18:49,281 INFO L231 Difference]: Finished difference. Result has 117 places, 99 transitions, 474 flow [2024-11-28 03:18:49,282 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=452, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=474, PETRI_PLACES=117, PETRI_TRANSITIONS=99} [2024-11-28 03:18:49,282 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 28 predicate places. [2024-11-28 03:18:49,282 INFO L471 AbstractCegarLoop]: Abstraction has has 117 places, 99 transitions, 474 flow [2024-11-28 03:18:49,283 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:49,283 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:18:49,283 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:49,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 03:18:49,283 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:18:49,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:49,285 INFO L85 PathProgramCache]: Analyzing trace with hash -1277388195, now seen corresponding path program 1 times [2024-11-28 03:18:49,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:49,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189394689] [2024-11-28 03:18:49,285 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:49,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:49,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:49,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:49,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:49,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189394689] [2024-11-28 03:18:49,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189394689] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:49,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:49,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:18:49,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739664978] [2024-11-28 03:18:49,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:49,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:18:49,483 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:49,483 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:18:49,483 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:18:49,604 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 96 [2024-11-28 03:18:49,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 99 transitions, 474 flow. Second operand has 7 states, 7 states have (on average 51.857142857142854) internal successors, (363), 7 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:49,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:18:49,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 96 [2024-11-28 03:18:49,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:18:50,626 INFO L124 PetriNetUnfolderBase]: 4198/7892 cut-off events. [2024-11-28 03:18:50,627 INFO L125 PetriNetUnfolderBase]: For 14347/14864 co-relation queries the response was YES. [2024-11-28 03:18:50,642 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22176 conditions, 7892 events. 4198/7892 cut-off events. For 14347/14864 co-relation queries the response was YES. Maximal size of possible extension queue 333. Compared 61418 event pairs, 200 based on Foata normal form. 417/8006 useless extension candidates. Maximal degree in co-relation 20172. Up to 3397 conditions per place. [2024-11-28 03:18:50,660 INFO L140 encePairwiseOnDemand]: 87/96 looper letters, 136 selfloop transitions, 16 changer transitions 0/190 dead transitions. [2024-11-28 03:18:50,660 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 190 transitions, 1204 flow [2024-11-28 03:18:50,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:18:50,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 03:18:50,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 462 transitions. [2024-11-28 03:18:50,663 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6875 [2024-11-28 03:18:50,663 INFO L175 Difference]: Start difference. First operand has 117 places, 99 transitions, 474 flow. Second operand 7 states and 462 transitions. [2024-11-28 03:18:50,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 190 transitions, 1204 flow [2024-11-28 03:18:50,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 190 transitions, 1182 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:18:50,742 INFO L231 Difference]: Finished difference. Result has 119 places, 98 transitions, 482 flow [2024-11-28 03:18:50,743 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=450, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=482, PETRI_PLACES=119, PETRI_TRANSITIONS=98} [2024-11-28 03:18:50,743 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 30 predicate places. [2024-11-28 03:18:50,743 INFO L471 AbstractCegarLoop]: Abstraction has has 119 places, 98 transitions, 482 flow [2024-11-28 03:18:50,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 51.857142857142854) internal successors, (363), 7 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:50,744 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:18:50,744 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:50,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 03:18:50,744 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:18:50,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:50,745 INFO L85 PathProgramCache]: Analyzing trace with hash -984457133, now seen corresponding path program 1 times [2024-11-28 03:18:50,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:50,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669921525] [2024-11-28 03:18:50,745 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:50,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:50,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:50,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:50,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:50,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669921525] [2024-11-28 03:18:50,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669921525] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:50,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:50,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:18:50,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508278277] [2024-11-28 03:18:50,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:50,825 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:18:50,825 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:50,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:18:50,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:18:50,896 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 96 [2024-11-28 03:18:50,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 98 transitions, 482 flow. Second operand has 6 states, 6 states have (on average 51.833333333333336) internal successors, (311), 6 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:50,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:18:50,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 96 [2024-11-28 03:18:50,896 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:18:52,132 INFO L124 PetriNetUnfolderBase]: 4596/10389 cut-off events. [2024-11-28 03:18:52,133 INFO L125 PetriNetUnfolderBase]: For 24281/24744 co-relation queries the response was YES. [2024-11-28 03:18:52,163 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27403 conditions, 10389 events. 4596/10389 cut-off events. For 24281/24744 co-relation queries the response was YES. Maximal size of possible extension queue 450. Compared 98502 event pairs, 1184 based on Foata normal form. 513/10075 useless extension candidates. Maximal degree in co-relation 16335. Up to 2698 conditions per place. [2024-11-28 03:18:52,311 INFO L140 encePairwiseOnDemand]: 86/96 looper letters, 201 selfloop transitions, 13 changer transitions 0/253 dead transitions. [2024-11-28 03:18:52,311 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 253 transitions, 2028 flow [2024-11-28 03:18:52,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:18:52,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 03:18:52,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 481 transitions. [2024-11-28 03:18:52,313 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7157738095238095 [2024-11-28 03:18:52,314 INFO L175 Difference]: Start difference. First operand has 119 places, 98 transitions, 482 flow. Second operand 7 states and 481 transitions. [2024-11-28 03:18:52,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 253 transitions, 2028 flow [2024-11-28 03:18:52,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 253 transitions, 1891 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:18:52,406 INFO L231 Difference]: Finished difference. Result has 122 places, 103 transitions, 528 flow [2024-11-28 03:18:52,406 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=455, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=528, PETRI_PLACES=122, PETRI_TRANSITIONS=103} [2024-11-28 03:18:52,407 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 33 predicate places. [2024-11-28 03:18:52,407 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 103 transitions, 528 flow [2024-11-28 03:18:52,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 51.833333333333336) internal successors, (311), 6 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:52,407 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:18:52,408 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:52,408 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-28 03:18:52,408 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:18:52,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:52,409 INFO L85 PathProgramCache]: Analyzing trace with hash -944327586, now seen corresponding path program 1 times [2024-11-28 03:18:52,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:52,409 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860216891] [2024-11-28 03:18:52,409 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:52,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:52,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:52,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:52,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:52,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860216891] [2024-11-28 03:18:52,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860216891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:52,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:52,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:18:52,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647584497] [2024-11-28 03:18:52,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:52,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:18:52,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:52,620 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:18:52,620 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:18:52,789 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 96 [2024-11-28 03:18:52,790 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 103 transitions, 528 flow. Second operand has 9 states, 9 states have (on average 45.333333333333336) internal successors, (408), 9 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:52,790 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:18:52,790 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 96 [2024-11-28 03:18:52,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:18:54,590 INFO L124 PetriNetUnfolderBase]: 5379/10327 cut-off events. [2024-11-28 03:18:54,590 INFO L125 PetriNetUnfolderBase]: For 26270/27285 co-relation queries the response was YES. [2024-11-28 03:18:54,612 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30088 conditions, 10327 events. 5379/10327 cut-off events. For 26270/27285 co-relation queries the response was YES. Maximal size of possible extension queue 424. Compared 85906 event pairs, 286 based on Foata normal form. 947/10838 useless extension candidates. Maximal degree in co-relation 27492. Up to 2416 conditions per place. [2024-11-28 03:18:54,635 INFO L140 encePairwiseOnDemand]: 84/96 looper letters, 205 selfloop transitions, 23 changer transitions 0/265 dead transitions. [2024-11-28 03:18:54,635 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 265 transitions, 1962 flow [2024-11-28 03:18:54,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:18:54,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 03:18:54,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 541 transitions. [2024-11-28 03:18:54,638 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6261574074074074 [2024-11-28 03:18:54,638 INFO L175 Difference]: Start difference. First operand has 122 places, 103 transitions, 528 flow. Second operand 9 states and 541 transitions. [2024-11-28 03:18:54,638 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 265 transitions, 1962 flow [2024-11-28 03:18:54,731 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 265 transitions, 1904 flow, removed 14 selfloop flow, removed 2 redundant places. [2024-11-28 03:18:54,734 INFO L231 Difference]: Finished difference. Result has 128 places, 103 transitions, 572 flow [2024-11-28 03:18:54,734 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=516, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=572, PETRI_PLACES=128, PETRI_TRANSITIONS=103} [2024-11-28 03:18:54,735 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 39 predicate places. [2024-11-28 03:18:54,735 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 103 transitions, 572 flow [2024-11-28 03:18:54,735 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 45.333333333333336) internal successors, (408), 9 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:54,735 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:18:54,735 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:54,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-28 03:18:54,736 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:18:54,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:54,736 INFO L85 PathProgramCache]: Analyzing trace with hash -650189322, now seen corresponding path program 1 times [2024-11-28 03:18:54,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:54,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127602970] [2024-11-28 03:18:54,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:54,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:54,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:54,801 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:54,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:54,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127602970] [2024-11-28 03:18:54,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127602970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:54,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:54,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:18:54,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903034733] [2024-11-28 03:18:54,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:54,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:18:54,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:54,802 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:18:54,802 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:18:54,826 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 96 [2024-11-28 03:18:54,827 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 103 transitions, 572 flow. Second operand has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:54,827 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:18:54,827 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 96 [2024-11-28 03:18:54,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:18:55,688 INFO L124 PetriNetUnfolderBase]: 3856/8972 cut-off events. [2024-11-28 03:18:55,689 INFO L125 PetriNetUnfolderBase]: For 28065/28702 co-relation queries the response was YES. [2024-11-28 03:18:55,716 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26481 conditions, 8972 events. 3856/8972 cut-off events. For 28065/28702 co-relation queries the response was YES. Maximal size of possible extension queue 417. Compared 84013 event pairs, 925 based on Foata normal form. 475/9158 useless extension candidates. Maximal degree in co-relation 17768. Up to 3639 conditions per place. [2024-11-28 03:18:55,823 INFO L140 encePairwiseOnDemand]: 92/96 looper letters, 76 selfloop transitions, 11 changer transitions 0/129 dead transitions. [2024-11-28 03:18:55,823 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 129 transitions, 893 flow [2024-11-28 03:18:55,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:18:55,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:18:55,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 277 transitions. [2024-11-28 03:18:55,825 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7213541666666666 [2024-11-28 03:18:55,825 INFO L175 Difference]: Start difference. First operand has 128 places, 103 transitions, 572 flow. Second operand 4 states and 277 transitions. [2024-11-28 03:18:55,825 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 129 transitions, 893 flow [2024-11-28 03:18:55,905 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 129 transitions, 853 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-11-28 03:18:55,906 INFO L231 Difference]: Finished difference. Result has 123 places, 102 transitions, 546 flow [2024-11-28 03:18:55,907 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=524, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=546, PETRI_PLACES=123, PETRI_TRANSITIONS=102} [2024-11-28 03:18:55,907 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 34 predicate places. [2024-11-28 03:18:55,907 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 102 transitions, 546 flow [2024-11-28 03:18:55,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:55,907 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:18:55,908 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:55,908 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-28 03:18:55,908 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:18:55,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:55,908 INFO L85 PathProgramCache]: Analyzing trace with hash -453430994, now seen corresponding path program 1 times [2024-11-28 03:18:55,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:55,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384376605] [2024-11-28 03:18:55,909 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:55,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:55,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:55,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:55,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:55,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384376605] [2024-11-28 03:18:55,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384376605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:55,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:55,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:18:55,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812060391] [2024-11-28 03:18:55,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:55,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:18:55,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:55,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:18:55,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:18:56,016 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 96 [2024-11-28 03:18:56,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 102 transitions, 546 flow. Second operand has 5 states, 5 states have (on average 56.4) internal successors, (282), 5 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:56,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:18:56,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 96 [2024-11-28 03:18:56,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:18:57,459 INFO L124 PetriNetUnfolderBase]: 5142/12284 cut-off events. [2024-11-28 03:18:57,459 INFO L125 PetriNetUnfolderBase]: For 33279/34107 co-relation queries the response was YES. [2024-11-28 03:18:57,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33831 conditions, 12284 events. 5142/12284 cut-off events. For 33279/34107 co-relation queries the response was YES. Maximal size of possible extension queue 593. Compared 124069 event pairs, 1425 based on Foata normal form. 910/12205 useless extension candidates. Maximal degree in co-relation 18625. Up to 3305 conditions per place. [2024-11-28 03:18:57,522 INFO L140 encePairwiseOnDemand]: 90/96 looper letters, 152 selfloop transitions, 10 changer transitions 0/199 dead transitions. [2024-11-28 03:18:57,522 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 199 transitions, 1578 flow [2024-11-28 03:18:57,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:18:57,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-28 03:18:57,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 366 transitions. [2024-11-28 03:18:57,524 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7625 [2024-11-28 03:18:57,524 INFO L175 Difference]: Start difference. First operand has 123 places, 102 transitions, 546 flow. Second operand 5 states and 366 transitions. [2024-11-28 03:18:57,524 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 199 transitions, 1578 flow [2024-11-28 03:18:57,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 199 transitions, 1496 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:18:57,636 INFO L231 Difference]: Finished difference. Result has 125 places, 103 transitions, 568 flow [2024-11-28 03:18:57,636 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=517, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=568, PETRI_PLACES=125, PETRI_TRANSITIONS=103} [2024-11-28 03:18:57,637 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 36 predicate places. [2024-11-28 03:18:57,637 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 103 transitions, 568 flow [2024-11-28 03:18:57,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 56.4) internal successors, (282), 5 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:57,637 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:18:57,637 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:57,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-28 03:18:57,637 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:18:57,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:57,638 INFO L85 PathProgramCache]: Analyzing trace with hash -2010155709, now seen corresponding path program 1 times [2024-11-28 03:18:57,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:57,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579256003] [2024-11-28 03:18:57,638 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:57,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:57,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:57,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:57,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:57,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579256003] [2024-11-28 03:18:57,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579256003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:57,685 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:57,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:57,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817462344] [2024-11-28 03:18:57,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:57,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:18:57,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:57,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:18:57,686 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:18:57,709 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 96 [2024-11-28 03:18:57,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 103 transitions, 568 flow. Second operand has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:57,709 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:18:57,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 96 [2024-11-28 03:18:57,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:18:58,921 INFO L124 PetriNetUnfolderBase]: 5469/12316 cut-off events. [2024-11-28 03:18:58,921 INFO L125 PetriNetUnfolderBase]: For 34209/34886 co-relation queries the response was YES. [2024-11-28 03:18:58,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35118 conditions, 12316 events. 5469/12316 cut-off events. For 34209/34886 co-relation queries the response was YES. Maximal size of possible extension queue 558. Compared 118950 event pairs, 2131 based on Foata normal form. 627/12314 useless extension candidates. Maximal degree in co-relation 19054. Up to 4551 conditions per place. [2024-11-28 03:18:58,998 INFO L140 encePairwiseOnDemand]: 91/96 looper letters, 113 selfloop transitions, 9 changer transitions 0/161 dead transitions. [2024-11-28 03:18:58,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 161 transitions, 1210 flow [2024-11-28 03:18:58,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:18:58,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:18:58,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 291 transitions. [2024-11-28 03:18:59,000 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7578125 [2024-11-28 03:18:59,000 INFO L175 Difference]: Start difference. First operand has 125 places, 103 transitions, 568 flow. Second operand 4 states and 291 transitions. [2024-11-28 03:18:59,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 161 transitions, 1210 flow [2024-11-28 03:18:59,139 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 161 transitions, 1168 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-28 03:18:59,141 INFO L231 Difference]: Finished difference. Result has 124 places, 102 transitions, 556 flow [2024-11-28 03:18:59,141 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=538, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=556, PETRI_PLACES=124, PETRI_TRANSITIONS=102} [2024-11-28 03:18:59,141 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 35 predicate places. [2024-11-28 03:18:59,141 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 102 transitions, 556 flow [2024-11-28 03:18:59,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.75) internal successors, (227), 4 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:59,142 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:18:59,142 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:18:59,142 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-28 03:18:59,142 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:18:59,142 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:18:59,142 INFO L85 PathProgramCache]: Analyzing trace with hash 790616703, now seen corresponding path program 1 times [2024-11-28 03:18:59,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:18:59,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727964509] [2024-11-28 03:18:59,143 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:18:59,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:18:59,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:18:59,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:18:59,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:18:59,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727964509] [2024-11-28 03:18:59,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727964509] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:18:59,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:18:59,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:18:59,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289437467] [2024-11-28 03:18:59,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:18:59,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:18:59,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:18:59,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:18:59,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:18:59,206 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 96 [2024-11-28 03:18:59,206 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 102 transitions, 556 flow. Second operand has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:18:59,206 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:18:59,206 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 96 [2024-11-28 03:18:59,206 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:19:01,498 INFO L124 PetriNetUnfolderBase]: 9270/22053 cut-off events. [2024-11-28 03:19:01,498 INFO L125 PetriNetUnfolderBase]: For 59966/61252 co-relation queries the response was YES. [2024-11-28 03:19:01,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62305 conditions, 22053 events. 9270/22053 cut-off events. For 59966/61252 co-relation queries the response was YES. Maximal size of possible extension queue 750. Compared 229327 event pairs, 5076 based on Foata normal form. 1136/22113 useless extension candidates. Maximal degree in co-relation 57332. Up to 7515 conditions per place. [2024-11-28 03:19:01,615 INFO L140 encePairwiseOnDemand]: 90/96 looper letters, 137 selfloop transitions, 10 changer transitions 0/187 dead transitions. [2024-11-28 03:19:01,615 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 187 transitions, 1438 flow [2024-11-28 03:19:01,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:19:01,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:19:01,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 317 transitions. [2024-11-28 03:19:01,619 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8255208333333334 [2024-11-28 03:19:01,619 INFO L175 Difference]: Start difference. First operand has 124 places, 102 transitions, 556 flow. Second operand 4 states and 317 transitions. [2024-11-28 03:19:01,619 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 187 transitions, 1438 flow [2024-11-28 03:19:01,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 187 transitions, 1413 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:19:01,801 INFO L231 Difference]: Finished difference. Result has 127 places, 111 transitions, 676 flow [2024-11-28 03:19:01,801 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=543, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=676, PETRI_PLACES=127, PETRI_TRANSITIONS=111} [2024-11-28 03:19:01,802 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 38 predicate places. [2024-11-28 03:19:01,802 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 111 transitions, 676 flow [2024-11-28 03:19:01,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.75) internal successors, (243), 4 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:19:01,802 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:19:01,802 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:01,802 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-28 03:19:01,802 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:19:01,803 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:01,803 INFO L85 PathProgramCache]: Analyzing trace with hash 2047970264, now seen corresponding path program 1 times [2024-11-28 03:19:01,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:01,803 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463690832] [2024-11-28 03:19:01,803 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:01,803 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:01,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:01,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:01,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463690832] [2024-11-28 03:19:01,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463690832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:01,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:01,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:19:01,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857148816] [2024-11-28 03:19:01,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:01,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:19:01,853 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:01,853 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:19:01,853 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:19:01,882 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 96 [2024-11-28 03:19:01,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 111 transitions, 676 flow. Second operand has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:19:01,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:19:01,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 96 [2024-11-28 03:19:01,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:19:03,566 INFO L124 PetriNetUnfolderBase]: 9053/22609 cut-off events. [2024-11-28 03:19:03,566 INFO L125 PetriNetUnfolderBase]: For 67432/69045 co-relation queries the response was YES. [2024-11-28 03:19:03,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62128 conditions, 22609 events. 9053/22609 cut-off events. For 67432/69045 co-relation queries the response was YES. Maximal size of possible extension queue 741. Compared 242810 event pairs, 2362 based on Foata normal form. 1546/22211 useless extension candidates. Maximal degree in co-relation 34215. Up to 7952 conditions per place. [2024-11-28 03:19:03,720 INFO L140 encePairwiseOnDemand]: 92/96 looper letters, 98 selfloop transitions, 11 changer transitions 0/149 dead transitions. [2024-11-28 03:19:03,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 149 transitions, 1220 flow [2024-11-28 03:19:03,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:19:03,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:19:03,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 280 transitions. [2024-11-28 03:19:03,721 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2024-11-28 03:19:03,721 INFO L175 Difference]: Start difference. First operand has 127 places, 111 transitions, 676 flow. Second operand 4 states and 280 transitions. [2024-11-28 03:19:03,721 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 149 transitions, 1220 flow [2024-11-28 03:19:04,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 149 transitions, 1214 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-28 03:19:04,100 INFO L231 Difference]: Finished difference. Result has 128 places, 110 transitions, 691 flow [2024-11-28 03:19:04,100 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=669, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=691, PETRI_PLACES=128, PETRI_TRANSITIONS=110} [2024-11-28 03:19:04,100 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 39 predicate places. [2024-11-28 03:19:04,100 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 110 transitions, 691 flow [2024-11-28 03:19:04,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 4 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:19:04,101 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:19:04,101 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:04,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-28 03:19:04,101 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:19:04,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:04,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1171459115, now seen corresponding path program 1 times [2024-11-28 03:19:04,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:04,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331493588] [2024-11-28 03:19:04,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:04,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:04,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:04,226 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:04,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:04,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [331493588] [2024-11-28 03:19:04,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [331493588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:04,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:04,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:19:04,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375029667] [2024-11-28 03:19:04,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:04,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:19:04,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:04,228 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:19:04,228 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:19:04,347 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 96 [2024-11-28 03:19:04,348 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 110 transitions, 691 flow. Second operand has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 7 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:19:04,348 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:19:04,348 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 96 [2024-11-28 03:19:04,348 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:19:06,870 INFO L124 PetriNetUnfolderBase]: 14645/27189 cut-off events. [2024-11-28 03:19:06,871 INFO L125 PetriNetUnfolderBase]: For 93458/96446 co-relation queries the response was YES. [2024-11-28 03:19:06,941 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85965 conditions, 27189 events. 14645/27189 cut-off events. For 93458/96446 co-relation queries the response was YES. Maximal size of possible extension queue 825. Compared 243336 event pairs, 786 based on Foata normal form. 2568/28840 useless extension candidates. Maximal degree in co-relation 47915. Up to 11612 conditions per place. [2024-11-28 03:19:07,012 INFO L140 encePairwiseOnDemand]: 87/96 looper letters, 216 selfloop transitions, 16 changer transitions 0/265 dead transitions. [2024-11-28 03:19:07,013 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 265 transitions, 2461 flow [2024-11-28 03:19:07,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:19:07,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-28 03:19:07,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 458 transitions. [2024-11-28 03:19:07,014 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6815476190476191 [2024-11-28 03:19:07,014 INFO L175 Difference]: Start difference. First operand has 128 places, 110 transitions, 691 flow. Second operand 7 states and 458 transitions. [2024-11-28 03:19:07,014 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 265 transitions, 2461 flow [2024-11-28 03:19:07,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 265 transitions, 2439 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:19:07,394 INFO L231 Difference]: Finished difference. Result has 130 places, 109 transitions, 699 flow [2024-11-28 03:19:07,394 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=699, PETRI_PLACES=130, PETRI_TRANSITIONS=109} [2024-11-28 03:19:07,395 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 41 predicate places. [2024-11-28 03:19:07,395 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 109 transitions, 699 flow [2024-11-28 03:19:07,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 52.142857142857146) internal successors, (365), 7 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:19:07,395 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:19:07,395 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:07,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-28 03:19:07,395 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:19:07,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:07,396 INFO L85 PathProgramCache]: Analyzing trace with hash -1661355095, now seen corresponding path program 1 times [2024-11-28 03:19:07,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:07,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [621535929] [2024-11-28 03:19:07,396 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:07,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:07,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:07,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:07,456 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:07,456 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [621535929] [2024-11-28 03:19:07,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [621535929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:07,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:07,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 03:19:07,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120629249] [2024-11-28 03:19:07,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:07,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:19:07,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:07,458 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:19:07,458 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:19:07,485 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 96 [2024-11-28 03:19:07,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 109 transitions, 699 flow. Second operand has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:19:07,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:19:07,486 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 96 [2024-11-28 03:19:07,486 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:19:09,743 INFO L124 PetriNetUnfolderBase]: 9053/21545 cut-off events. [2024-11-28 03:19:09,743 INFO L125 PetriNetUnfolderBase]: For 77009/78622 co-relation queries the response was YES. [2024-11-28 03:19:09,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63109 conditions, 21545 events. 9053/21545 cut-off events. For 77009/78622 co-relation queries the response was YES. Maximal size of possible extension queue 685. Compared 222811 event pairs, 2362 based on Foata normal form. 1546/22078 useless extension candidates. Maximal degree in co-relation 34849. Up to 8085 conditions per place. [2024-11-28 03:19:09,894 INFO L140 encePairwiseOnDemand]: 92/96 looper letters, 99 selfloop transitions, 11 changer transitions 0/147 dead transitions. [2024-11-28 03:19:09,894 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 147 transitions, 1238 flow [2024-11-28 03:19:09,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:19:09,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:19:09,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 276 transitions. [2024-11-28 03:19:09,895 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.71875 [2024-11-28 03:19:09,895 INFO L175 Difference]: Start difference. First operand has 130 places, 109 transitions, 699 flow. Second operand 4 states and 276 transitions. [2024-11-28 03:19:09,895 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 147 transitions, 1238 flow [2024-11-28 03:19:10,531 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 147 transitions, 1211 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-28 03:19:10,532 INFO L231 Difference]: Finished difference. Result has 127 places, 108 transitions, 686 flow [2024-11-28 03:19:10,532 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=664, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=686, PETRI_PLACES=127, PETRI_TRANSITIONS=108} [2024-11-28 03:19:10,533 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 38 predicate places. [2024-11-28 03:19:10,533 INFO L471 AbstractCegarLoop]: Abstraction has has 127 places, 108 transitions, 686 flow [2024-11-28 03:19:10,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.0) internal successors, (236), 4 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:19:10,533 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:19:10,533 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:10,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2024-11-28 03:19:10,533 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:19:10,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:10,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1955493359, now seen corresponding path program 1 times [2024-11-28 03:19:10,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:10,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732859107] [2024-11-28 03:19:10,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:10,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:10,675 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:10,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:10,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732859107] [2024-11-28 03:19:10,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732859107] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:10,676 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:10,676 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:19:10,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859404227] [2024-11-28 03:19:10,676 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:10,676 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:19:10,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:10,677 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:19:10,679 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:19:10,835 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 96 [2024-11-28 03:19:10,836 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 108 transitions, 686 flow. Second operand has 9 states, 9 states have (on average 45.55555555555556) internal successors, (410), 9 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:19:10,836 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:19:10,836 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 96 [2024-11-28 03:19:10,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:19:13,868 INFO L124 PetriNetUnfolderBase]: 13247/24993 cut-off events. [2024-11-28 03:19:13,868 INFO L125 PetriNetUnfolderBase]: For 95598/98258 co-relation queries the response was YES. [2024-11-28 03:19:13,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79426 conditions, 24993 events. 13247/24993 cut-off events. For 95598/98258 co-relation queries the response was YES. Maximal size of possible extension queue 775. Compared 223618 event pairs, 786 based on Foata normal form. 3211/27303 useless extension candidates. Maximal degree in co-relation 43999. Up to 5523 conditions per place. [2024-11-28 03:19:14,022 INFO L140 encePairwiseOnDemand]: 84/96 looper letters, 288 selfloop transitions, 22 changer transitions 0/342 dead transitions. [2024-11-28 03:19:14,023 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 342 transitions, 3268 flow [2024-11-28 03:19:14,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:19:14,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-28 03:19:14,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 534 transitions. [2024-11-28 03:19:14,024 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6180555555555556 [2024-11-28 03:19:14,025 INFO L175 Difference]: Start difference. First operand has 127 places, 108 transitions, 686 flow. Second operand 9 states and 534 transitions. [2024-11-28 03:19:14,025 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 342 transitions, 3268 flow [2024-11-28 03:19:14,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 342 transitions, 3246 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:19:14,475 INFO L231 Difference]: Finished difference. Result has 132 places, 108 transitions, 716 flow [2024-11-28 03:19:14,476 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=662, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=716, PETRI_PLACES=132, PETRI_TRANSITIONS=108} [2024-11-28 03:19:14,476 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 43 predicate places. [2024-11-28 03:19:14,476 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 108 transitions, 716 flow [2024-11-28 03:19:14,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 45.55555555555556) internal successors, (410), 9 states have internal predecessors, (410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:19:14,477 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:19:14,477 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:14,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-28 03:19:14,477 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:19:14,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:14,478 INFO L85 PathProgramCache]: Analyzing trace with hash 1922004360, now seen corresponding path program 1 times [2024-11-28 03:19:14,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:14,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746938112] [2024-11-28 03:19:14,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:14,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:14,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:14,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:14,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:14,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746938112] [2024-11-28 03:19:14,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746938112] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:14,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:14,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:19:14,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167391203] [2024-11-28 03:19:14,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:14,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:19:14,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:14,545 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:19:14,545 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:19:14,594 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 96 [2024-11-28 03:19:14,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 108 transitions, 716 flow. Second operand has 5 states, 5 states have (on average 54.6) internal successors, (273), 5 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:19:14,594 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:19:14,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 96 [2024-11-28 03:19:14,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:19:17,278 INFO L124 PetriNetUnfolderBase]: 12782/24264 cut-off events. [2024-11-28 03:19:17,278 INFO L125 PetriNetUnfolderBase]: For 102113/104190 co-relation queries the response was YES. [2024-11-28 03:19:17,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82478 conditions, 24264 events. 12782/24264 cut-off events. For 102113/104190 co-relation queries the response was YES. Maximal size of possible extension queue 726. Compared 216218 event pairs, 4860 based on Foata normal form. 2339/26396 useless extension candidates. Maximal degree in co-relation 44214. Up to 10389 conditions per place. [2024-11-28 03:19:17,571 INFO L140 encePairwiseOnDemand]: 89/96 looper letters, 181 selfloop transitions, 15 changer transitions 0/229 dead transitions. [2024-11-28 03:19:17,571 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 229 transitions, 2052 flow [2024-11-28 03:19:17,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:19:17,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-28 03:19:17,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 424 transitions. [2024-11-28 03:19:17,573 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7361111111111112 [2024-11-28 03:19:17,573 INFO L175 Difference]: Start difference. First operand has 132 places, 108 transitions, 716 flow. Second operand 6 states and 424 transitions. [2024-11-28 03:19:17,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 229 transitions, 2052 flow [2024-11-28 03:19:17,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 229 transitions, 1876 flow, removed 2 selfloop flow, removed 8 redundant places. [2024-11-28 03:19:17,862 INFO L231 Difference]: Finished difference. Result has 130 places, 109 transitions, 712 flow [2024-11-28 03:19:17,863 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=656, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=712, PETRI_PLACES=130, PETRI_TRANSITIONS=109} [2024-11-28 03:19:17,863 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 41 predicate places. [2024-11-28 03:19:17,863 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 109 transitions, 712 flow [2024-11-28 03:19:17,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.6) internal successors, (273), 5 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:19:17,864 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:19:17,864 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:17,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-28 03:19:17,864 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:19:17,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:17,864 INFO L85 PathProgramCache]: Analyzing trace with hash -490751145, now seen corresponding path program 1 times [2024-11-28 03:19:17,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:17,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696244614] [2024-11-28 03:19:17,865 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:17,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:17,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:17,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:17,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:17,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696244614] [2024-11-28 03:19:17,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696244614] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:17,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:17,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:19:17,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3871148] [2024-11-28 03:19:17,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:17,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:19:17,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:17,917 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:19:17,918 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:19:17,922 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 96 [2024-11-28 03:19:17,923 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 109 transitions, 712 flow. Second operand has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:19:17,923 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:19:17,923 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 96 [2024-11-28 03:19:17,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:19:22,404 INFO L124 PetriNetUnfolderBase]: 18538/40931 cut-off events. [2024-11-28 03:19:22,404 INFO L125 PetriNetUnfolderBase]: For 164099/167495 co-relation queries the response was YES. [2024-11-28 03:19:22,535 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131578 conditions, 40931 events. 18538/40931 cut-off events. For 164099/167495 co-relation queries the response was YES. Maximal size of possible extension queue 1111. Compared 429600 event pairs, 7090 based on Foata normal form. 3261/43997 useless extension candidates. Maximal degree in co-relation 86433. Up to 14674 conditions per place. [2024-11-28 03:19:22,637 INFO L140 encePairwiseOnDemand]: 90/96 looper letters, 169 selfloop transitions, 10 changer transitions 0/215 dead transitions. [2024-11-28 03:19:22,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 215 transitions, 1977 flow [2024-11-28 03:19:22,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:19:22,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:19:22,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 315 transitions. [2024-11-28 03:19:22,639 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8203125 [2024-11-28 03:19:22,639 INFO L175 Difference]: Start difference. First operand has 130 places, 109 transitions, 712 flow. Second operand 4 states and 315 transitions. [2024-11-28 03:19:22,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 215 transitions, 1977 flow [2024-11-28 03:19:23,366 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 215 transitions, 1865 flow, removed 24 selfloop flow, removed 4 redundant places. [2024-11-28 03:19:23,368 INFO L231 Difference]: Finished difference. Result has 131 places, 118 transitions, 804 flow [2024-11-28 03:19:23,368 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=672, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=804, PETRI_PLACES=131, PETRI_TRANSITIONS=118} [2024-11-28 03:19:23,368 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 42 predicate places. [2024-11-28 03:19:23,368 INFO L471 AbstractCegarLoop]: Abstraction has has 131 places, 118 transitions, 804 flow [2024-11-28 03:19:23,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.25) internal successors, (245), 4 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:19:23,368 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:19:23,369 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:23,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2024-11-28 03:19:23,369 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:19:23,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:23,369 INFO L85 PathProgramCache]: Analyzing trace with hash 1003443739, now seen corresponding path program 1 times [2024-11-28 03:19:23,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:23,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581101333] [2024-11-28 03:19:23,369 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:23,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:23,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:23,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:23,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:23,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581101333] [2024-11-28 03:19:23,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581101333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:23,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:23,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:19:23,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149127263] [2024-11-28 03:19:23,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:23,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:19:23,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:23,420 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:19:23,420 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:19:23,448 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 96 [2024-11-28 03:19:23,448 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 118 transitions, 804 flow. Second operand has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:19:23,448 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:19:23,448 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 96 [2024-11-28 03:19:23,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:19:28,311 INFO L124 PetriNetUnfolderBase]: 21068/43443 cut-off events. [2024-11-28 03:19:28,311 INFO L125 PetriNetUnfolderBase]: For 169196/173106 co-relation queries the response was YES. [2024-11-28 03:19:28,471 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141127 conditions, 43443 events. 21068/43443 cut-off events. For 169196/173106 co-relation queries the response was YES. Maximal size of possible extension queue 1131. Compared 437695 event pairs, 8272 based on Foata normal form. 3724/46847 useless extension candidates. Maximal degree in co-relation 92313. Up to 17402 conditions per place. [2024-11-28 03:19:28,601 INFO L140 encePairwiseOnDemand]: 91/96 looper letters, 151 selfloop transitions, 13 changer transitions 0/198 dead transitions. [2024-11-28 03:19:28,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 198 transitions, 1766 flow [2024-11-28 03:19:28,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:19:28,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:19:28,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 289 transitions. [2024-11-28 03:19:28,603 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7526041666666666 [2024-11-28 03:19:28,603 INFO L175 Difference]: Start difference. First operand has 131 places, 118 transitions, 804 flow. Second operand 4 states and 289 transitions. [2024-11-28 03:19:28,603 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 198 transitions, 1766 flow [2024-11-28 03:19:29,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 198 transitions, 1753 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-28 03:19:29,557 INFO L231 Difference]: Finished difference. Result has 132 places, 117 transitions, 807 flow [2024-11-28 03:19:29,557 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=781, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=807, PETRI_PLACES=132, PETRI_TRANSITIONS=117} [2024-11-28 03:19:29,558 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 43 predicate places. [2024-11-28 03:19:29,558 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 117 transitions, 807 flow [2024-11-28 03:19:29,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.25) internal successors, (229), 4 states have internal predecessors, (229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:19:29,558 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:19:29,558 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:29,558 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-28 03:19:29,558 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:19:29,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:29,559 INFO L85 PathProgramCache]: Analyzing trace with hash -1111849536, now seen corresponding path program 1 times [2024-11-28 03:19:29,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:29,559 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489542269] [2024-11-28 03:19:29,559 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:29,559 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:29,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:29,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:29,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489542269] [2024-11-28 03:19:29,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489542269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:29,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:19:29,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 03:19:29,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1045395059] [2024-11-28 03:19:29,612 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:29,612 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:19:29,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:29,613 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:19:29,613 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:19:29,645 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 96 [2024-11-28 03:19:29,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 117 transitions, 807 flow. Second operand has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:19:29,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:19:29,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 96 [2024-11-28 03:19:29,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:19:34,973 INFO L124 PetriNetUnfolderBase]: 24330/47015 cut-off events. [2024-11-28 03:19:34,973 INFO L125 PetriNetUnfolderBase]: For 205365/210035 co-relation queries the response was YES. [2024-11-28 03:19:35,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159104 conditions, 47015 events. 24330/47015 cut-off events. For 205365/210035 co-relation queries the response was YES. Maximal size of possible extension queue 1315. Compared 456503 event pairs, 9060 based on Foata normal form. 4428/50957 useless extension candidates. Maximal degree in co-relation 104131. Up to 19398 conditions per place. [2024-11-28 03:19:35,328 INFO L140 encePairwiseOnDemand]: 91/96 looper letters, 156 selfloop transitions, 10 changer transitions 0/200 dead transitions. [2024-11-28 03:19:35,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 200 transitions, 1831 flow [2024-11-28 03:19:35,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:19:35,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-28 03:19:35,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 287 transitions. [2024-11-28 03:19:35,330 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7473958333333334 [2024-11-28 03:19:35,330 INFO L175 Difference]: Start difference. First operand has 132 places, 117 transitions, 807 flow. Second operand 4 states and 287 transitions. [2024-11-28 03:19:35,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 200 transitions, 1831 flow [2024-11-28 03:19:36,693 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 200 transitions, 1800 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-28 03:19:36,695 INFO L231 Difference]: Finished difference. Result has 132 places, 120 transitions, 863 flow [2024-11-28 03:19:36,695 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=772, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=863, PETRI_PLACES=132, PETRI_TRANSITIONS=120} [2024-11-28 03:19:36,695 INFO L279 CegarLoopForPetriNet]: 89 programPoint places, 43 predicate places. [2024-11-28 03:19:36,695 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 120 transitions, 863 flow [2024-11-28 03:19:36,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.5) internal successors, (230), 4 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:19:36,695 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-28 03:19:36,696 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-28 03:19:36,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-11-28 03:19:36,696 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 55 more)] === [2024-11-28 03:19:36,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:19:36,696 INFO L85 PathProgramCache]: Analyzing trace with hash 65941779, now seen corresponding path program 1 times [2024-11-28 03:19:36,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:19:36,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800086999] [2024-11-28 03:19:36,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:36,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:19:36,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:36,781 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:36,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:19:36,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800086999] [2024-11-28 03:19:36,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800086999] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:19:36,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403792150] [2024-11-28 03:19:36,782 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:19:36,782 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:19:36,783 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4c26b5-b0ac-472e-b997-67ac139bed6e/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:19:36,787 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4c26b5-b0ac-472e-b997-67ac139bed6e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:19:36,797 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7b4c26b5-b0ac-472e-b997-67ac139bed6e/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:19:36,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:19:36,878 INFO L256 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 03:19:36,882 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:19:36,991 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:19:36,991 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:19:36,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403792150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:19:36,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:19:36,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-28 03:19:36,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022510524] [2024-11-28 03:19:36,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:19:36,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:19:36,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:19:36,993 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:19:36,993 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:19:37,004 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 96 [2024-11-28 03:19:37,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 120 transitions, 863 flow. Second operand has 6 states, 6 states have (on average 61.166666666666664) internal successors, (367), 6 states have internal predecessors, (367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:19:37,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-28 03:19:37,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 96 [2024-11-28 03:19:37,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-28 03:19:41,742 INFO L124 PetriNetUnfolderBase]: 18984/40113 cut-off events. [2024-11-28 03:19:41,742 INFO L125 PetriNetUnfolderBase]: For 175340/178668 co-relation queries the response was YES. [2024-11-28 03:19:41,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 139657 conditions, 40113 events. 18984/40113 cut-off events. For 175340/178668 co-relation queries the response was YES. Maximal size of possible extension queue 1082. Compared 405468 event pairs, 348 based on Foata normal form. 3216/43135 useless extension candidates. Maximal degree in co-relation 136232. Up to 12454 conditions per place.