./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd --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 01186d000498d57447d1d7ea86dd893215c56febea2169abeb96f12030a58ea4 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:56:53,929 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:56:54,034 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 15:56:54,040 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:56:54,040 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:56:54,089 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:56:54,090 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:56:54,090 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:56:54,096 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:56:54,096 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:56:54,096 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:56:54,096 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:56:54,096 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:56:54,096 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:56:54,097 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:56:54,097 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:56:54,097 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:56:54,097 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:56:54,097 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:56:54,097 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:56:54,097 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:56:54,098 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:56:54,098 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:56:54,098 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:56:54,098 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:56:54,098 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 15:56:54,098 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:56:54,098 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:56:54,098 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:56:54,098 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:56:54,099 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:56:54,099 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:56:54,099 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:56:54,099 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:56:54,103 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:56:54,103 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:56:54,104 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:56:54,104 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:56:54,104 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:56:54,104 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:56:54,104 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:56:54,104 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:56:54,104 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:56:54,104 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:56:54,104 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_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd 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 -> 01186d000498d57447d1d7ea86dd893215c56febea2169abeb96f12030a58ea4 [2024-11-13 15:56:54,479 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:56:54,491 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:56:54,496 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:56:54,497 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:56:54,498 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:56:54,501 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c Unable to find full path for "g++" [2024-11-13 15:56:56,582 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:56:56,866 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:56:56,867 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/sv-benchmarks/c/weaver/popl20-bad-ring-nondet.wvr.c [2024-11-13 15:56:56,877 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/data/1f3051df9/d13b92f4010544619e97465d6365fe2a/FLAG7d0ae9242 [2024-11-13 15:56:56,891 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/data/1f3051df9/d13b92f4010544619e97465d6365fe2a [2024-11-13 15:56:56,894 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:56:56,896 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:56:56,897 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:56:56,897 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:56:56,901 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:56:56,902 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:56:56" (1/1) ... [2024-11-13 15:56:56,903 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25be91e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:56, skipping insertion in model container [2024-11-13 15:56:56,904 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:56:56" (1/1) ... [2024-11-13 15:56:56,928 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:56:57,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:56:57,195 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:56:57,232 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:56:57,251 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:56:57,251 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:57 WrapperNode [2024-11-13 15:56:57,252 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:56:57,253 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:56:57,253 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:56:57,253 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:56:57,265 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:57" (1/1) ... [2024-11-13 15:56:57,274 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:57" (1/1) ... [2024-11-13 15:56:57,314 INFO L138 Inliner]: procedures = 24, calls = 49, calls flagged for inlining = 17, calls inlined = 21, statements flattened = 343 [2024-11-13 15:56:57,315 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:56:57,315 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:56:57,315 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:56:57,316 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:56:57,333 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:57" (1/1) ... [2024-11-13 15:56:57,334 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:57" (1/1) ... [2024-11-13 15:56:57,341 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:57" (1/1) ... [2024-11-13 15:56:57,387 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-11-13 15:56:57,388 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:57" (1/1) ... [2024-11-13 15:56:57,388 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:57" (1/1) ... [2024-11-13 15:56:57,408 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:57" (1/1) ... [2024-11-13 15:56:57,419 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:57" (1/1) ... [2024-11-13 15:56:57,425 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:57" (1/1) ... [2024-11-13 15:56:57,427 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:57" (1/1) ... [2024-11-13 15:56:57,430 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:56:57,431 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:56:57,431 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:56:57,431 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:56:57,436 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:57" (1/1) ... [2024-11-13 15:56:57,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:56:57,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:56:57,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:56:57,494 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:56:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:56:57,527 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-13 15:56:57,528 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-13 15:56:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-13 15:56:57,528 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-13 15:56:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-13 15:56:57,528 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-13 15:56:57,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:56:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 15:56:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 15:56:57,529 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 15:56:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-13 15:56:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-13 15:56:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 15:56:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:56:57,530 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:56:57,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 15:56:57,531 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 15:56:57,533 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 15:56:57,711 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:56:57,715 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:56:58,597 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 15:56:58,597 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:56:59,220 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:56:59,221 INFO L316 CfgBuilder]: Removed 6 assume(true) statements. [2024-11-13 15:56:59,221 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:56:59 BoogieIcfgContainer [2024-11-13 15:56:59,221 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:56:59,224 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:56:59,225 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:56:59,231 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:56:59,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:56:56" (1/3) ... [2024-11-13 15:56:59,232 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a1b114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:56:59, skipping insertion in model container [2024-11-13 15:56:59,232 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:56:57" (2/3) ... [2024-11-13 15:56:59,233 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11a1b114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:56:59, skipping insertion in model container [2024-11-13 15:56:59,233 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:56:59" (3/3) ... [2024-11-13 15:56:59,235 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-ring-nondet.wvr.c [2024-11-13 15:56:59,252 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:56:59,254 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-bad-ring-nondet.wvr.c that has 4 procedures, 83 locations, 1 initial locations, 6 loop locations, and 32 error locations. [2024-11-13 15:56:59,254 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 15:56:59,386 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-13 15:56:59,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 92 transitions, 205 flow [2024-11-13 15:56:59,505 INFO L124 PetriNetUnfolderBase]: 10/89 cut-off events. [2024-11-13 15:56:59,508 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-13 15:56:59,513 INFO L83 FinitePrefix]: Finished finitePrefix Result has 102 conditions, 89 events. 10/89 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 327 event pairs, 0 based on Foata normal form. 0/47 useless extension candidates. Maximal degree in co-relation 69. Up to 3 conditions per place. [2024-11-13 15:56:59,514 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 92 transitions, 205 flow [2024-11-13 15:56:59,518 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 87 transitions, 189 flow [2024-11-13 15:56:59,525 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:56:59,542 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;@21fb3c69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:56:59,546 INFO L334 AbstractCegarLoop]: Starting to check reachability of 61 error locations. [2024-11-13 15:56:59,550 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:56:59,550 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-13 15:56:59,550 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:56:59,550 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:56:59,551 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-13 15:56:59,551 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-11-13 15:56:59,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:56:59,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1051278, now seen corresponding path program 1 times [2024-11-13 15:56:59,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:56:59,567 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1282093449] [2024-11-13 15:56:59,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:56:59,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:56:59,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:56:59,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:56:59,939 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:56:59,940 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1282093449] [2024-11-13 15:56:59,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1282093449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:56:59,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:56:59,944 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:56:59,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874416778] [2024-11-13 15:56:59,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:56:59,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:56:59,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:00,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:57:00,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:57:00,051 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 92 [2024-11-13 15:57:00,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 87 transitions, 189 flow. Second operand has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2024-11-13 15:57:00,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:00,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 92 [2024-11-13 15:57:00,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:03,080 INFO L124 PetriNetUnfolderBase]: 9250/15312 cut-off events. [2024-11-13 15:57:03,081 INFO L125 PetriNetUnfolderBase]: For 443/443 co-relation queries the response was YES. [2024-11-13 15:57:03,131 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28402 conditions, 15312 events. 9250/15312 cut-off events. For 443/443 co-relation queries the response was YES. Maximal size of possible extension queue 928. Compared 119372 event pairs, 8468 based on Foata normal form. 738/9561 useless extension candidates. Maximal degree in co-relation 27629. Up to 12592 conditions per place. [2024-11-13 15:57:03,239 INFO L140 encePairwiseOnDemand]: 68/92 looper letters, 58 selfloop transitions, 10 changer transitions 0/88 dead transitions. [2024-11-13 15:57:03,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 88 transitions, 327 flow [2024-11-13 15:57:03,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:57:03,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:57:03,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 174 transitions. [2024-11-13 15:57:03,262 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47282608695652173 [2024-11-13 15:57:03,264 INFO L175 Difference]: Start difference. First operand has 87 places, 87 transitions, 189 flow. Second operand 4 states and 174 transitions. [2024-11-13 15:57:03,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 88 transitions, 327 flow [2024-11-13 15:57:03,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 88 transitions, 318 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 15:57:03,296 INFO L231 Difference]: Finished difference. Result has 82 places, 88 transitions, 252 flow [2024-11-13 15:57:03,299 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=252, PETRI_PLACES=82, PETRI_TRANSITIONS=88} [2024-11-13 15:57:03,304 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, -5 predicate places. [2024-11-13 15:57:03,306 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 88 transitions, 252 flow [2024-11-13 15:57:03,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.75) internal successors, (95), 4 states have internal predecessors, (95), 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) [2024-11-13 15:57:03,306 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:03,307 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-13 15:57:03,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:57:03,308 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-11-13 15:57:03,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:03,309 INFO L85 PathProgramCache]: Analyzing trace with hash 1254921363, now seen corresponding path program 1 times [2024-11-13 15:57:03,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:03,309 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227557980] [2024-11-13 15:57:03,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:03,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:03,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:03,535 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:03,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:03,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227557980] [2024-11-13 15:57:03,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227557980] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:57:03,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971422361] [2024-11-13 15:57:03,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:03,536 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:03,536 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:57:03,539 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:57:03,541 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:57:03,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:03,667 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:57:03,671 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:57:03,731 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:03,731 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:57:03,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1971422361] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:03,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:57:03,732 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-13 15:57:03,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [463405648] [2024-11-13 15:57:03,733 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:03,733 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:57:03,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:03,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:57:03,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:57:03,770 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 92 [2024-11-13 15:57:03,771 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 88 transitions, 252 flow. Second operand has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 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) [2024-11-13 15:57:03,771 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:03,771 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 92 [2024-11-13 15:57:03,772 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:06,063 INFO L124 PetriNetUnfolderBase]: 9250/15309 cut-off events. [2024-11-13 15:57:06,064 INFO L125 PetriNetUnfolderBase]: For 110/110 co-relation queries the response was YES. [2024-11-13 15:57:06,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28300 conditions, 15309 events. 9250/15309 cut-off events. For 110/110 co-relation queries the response was YES. Maximal size of possible extension queue 928. Compared 119395 event pairs, 8468 based on Foata normal form. 3/8828 useless extension candidates. Maximal degree in co-relation 28227. Up to 12577 conditions per place. [2024-11-13 15:57:06,203 INFO L140 encePairwiseOnDemand]: 79/92 looper letters, 48 selfloop transitions, 17 changer transitions 0/85 dead transitions. [2024-11-13 15:57:06,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 85 transitions, 370 flow [2024-11-13 15:57:06,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:57:06,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:57:06,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 206 transitions. [2024-11-13 15:57:06,206 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37318840579710144 [2024-11-13 15:57:06,206 INFO L175 Difference]: Start difference. First operand has 82 places, 88 transitions, 252 flow. Second operand 6 states and 206 transitions. [2024-11-13 15:57:06,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 85 transitions, 370 flow [2024-11-13 15:57:06,210 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 85 transitions, 370 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:57:06,212 INFO L231 Difference]: Finished difference. Result has 84 places, 85 transitions, 274 flow [2024-11-13 15:57:06,215 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=274, PETRI_PLACES=84, PETRI_TRANSITIONS=85} [2024-11-13 15:57:06,216 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, -3 predicate places. [2024-11-13 15:57:06,216 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 85 transitions, 274 flow [2024-11-13 15:57:06,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.833333333333332) internal successors, (143), 6 states have internal predecessors, (143), 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) [2024-11-13 15:57:06,217 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:06,217 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-13 15:57:06,243 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 15:57:06,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-11-13 15:57:06,418 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-11-13 15:57:06,419 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:06,419 INFO L85 PathProgramCache]: Analyzing trace with hash 247857666, now seen corresponding path program 1 times [2024-11-13 15:57:06,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:06,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664770767] [2024-11-13 15:57:06,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:06,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:06,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:06,569 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:06,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:06,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664770767] [2024-11-13 15:57:06,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664770767] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:57:06,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538217258] [2024-11-13 15:57:06,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:06,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:06,570 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:57:06,572 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:57:06,574 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:57:06,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:06,705 INFO L255 TraceCheckSpWp]: Trace formula consists of 95 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:57:06,706 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:57:06,750 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:06,750 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:57:06,819 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:06,820 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538217258] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:57:06,820 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:57:06,820 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-13 15:57:06,820 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546269946] [2024-11-13 15:57:06,820 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:57:06,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 15:57:06,821 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:06,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 15:57:06,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-13 15:57:06,902 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 92 [2024-11-13 15:57:06,903 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 85 transitions, 274 flow. Second operand has 12 states, 12 states have (on average 24.083333333333332) internal successors, (289), 12 states have internal predecessors, (289), 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) [2024-11-13 15:57:06,903 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:06,903 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 92 [2024-11-13 15:57:06,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:09,102 INFO L124 PetriNetUnfolderBase]: 9259/15345 cut-off events. [2024-11-13 15:57:09,103 INFO L125 PetriNetUnfolderBase]: For 175/175 co-relation queries the response was YES. [2024-11-13 15:57:09,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28441 conditions, 15345 events. 9259/15345 cut-off events. For 175/175 co-relation queries the response was YES. Maximal size of possible extension queue 928. Compared 119831 event pairs, 8468 based on Foata normal form. 9/8870 useless extension candidates. Maximal degree in co-relation 28229. Up to 12592 conditions per place. [2024-11-13 15:57:09,223 INFO L140 encePairwiseOnDemand]: 79/92 looper letters, 55 selfloop transitions, 37 changer transitions 0/112 dead transitions. [2024-11-13 15:57:09,223 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 112 transitions, 632 flow [2024-11-13 15:57:09,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:57:09,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 15:57:09,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 331 transitions. [2024-11-13 15:57:09,227 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.35978260869565215 [2024-11-13 15:57:09,228 INFO L175 Difference]: Start difference. First operand has 84 places, 85 transitions, 274 flow. Second operand 10 states and 331 transitions. [2024-11-13 15:57:09,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 112 transitions, 632 flow [2024-11-13 15:57:09,234 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 112 transitions, 549 flow, removed 16 selfloop flow, removed 5 redundant places. [2024-11-13 15:57:09,238 INFO L231 Difference]: Finished difference. Result has 91 places, 112 transitions, 489 flow [2024-11-13 15:57:09,239 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=489, PETRI_PLACES=91, PETRI_TRANSITIONS=112} [2024-11-13 15:57:09,241 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 4 predicate places. [2024-11-13 15:57:09,242 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 112 transitions, 489 flow [2024-11-13 15:57:09,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 24.083333333333332) internal successors, (289), 12 states have internal predecessors, (289), 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) [2024-11-13 15:57:09,242 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:09,242 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:09,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 15:57:09,443 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-13 15:57:09,443 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-11-13 15:57:09,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:09,444 INFO L85 PathProgramCache]: Analyzing trace with hash -987014416, now seen corresponding path program 1 times [2024-11-13 15:57:09,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:09,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439866727] [2024-11-13 15:57:09,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:09,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:09,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:09,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:09,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:09,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439866727] [2024-11-13 15:57:09,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439866727] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:09,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:57:09,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:57:09,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277348929] [2024-11-13 15:57:09,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:09,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:57:09,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:09,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:57:09,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:57:09,873 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2024-11-13 15:57:09,874 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 112 transitions, 489 flow. Second operand has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2024-11-13 15:57:09,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:09,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2024-11-13 15:57:09,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:11,784 INFO L124 PetriNetUnfolderBase]: 9497/15617 cut-off events. [2024-11-13 15:57:11,784 INFO L125 PetriNetUnfolderBase]: For 287/287 co-relation queries the response was YES. [2024-11-13 15:57:11,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29205 conditions, 15617 events. 9497/15617 cut-off events. For 287/287 co-relation queries the response was YES. Maximal size of possible extension queue 917. Compared 119204 event pairs, 8675 based on Foata normal form. 109/9367 useless extension candidates. Maximal degree in co-relation 29047. Up to 12618 conditions per place. [2024-11-13 15:57:11,910 INFO L140 encePairwiseOnDemand]: 80/92 looper letters, 126 selfloop transitions, 10 changer transitions 1/160 dead transitions. [2024-11-13 15:57:11,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 160 transitions, 1015 flow [2024-11-13 15:57:11,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:57:11,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 15:57:11,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 236 transitions. [2024-11-13 15:57:11,912 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5130434782608696 [2024-11-13 15:57:11,912 INFO L175 Difference]: Start difference. First operand has 91 places, 112 transitions, 489 flow. Second operand 5 states and 236 transitions. [2024-11-13 15:57:11,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 160 transitions, 1015 flow [2024-11-13 15:57:11,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 160 transitions, 955 flow, removed 15 selfloop flow, removed 2 redundant places. [2024-11-13 15:57:11,920 INFO L231 Difference]: Finished difference. Result has 95 places, 119 transitions, 554 flow [2024-11-13 15:57:11,921 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=452, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=554, PETRI_PLACES=95, PETRI_TRANSITIONS=119} [2024-11-13 15:57:11,922 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 8 predicate places. [2024-11-13 15:57:11,922 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 119 transitions, 554 flow [2024-11-13 15:57:11,922 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.0) internal successors, (124), 4 states have internal predecessors, (124), 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) [2024-11-13 15:57:11,922 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:11,923 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:11,923 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:57:11,923 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-11-13 15:57:11,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:11,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1430080523, now seen corresponding path program 1 times [2024-11-13 15:57:11,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:11,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126433708] [2024-11-13 15:57:11,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:11,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:11,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:12,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:12,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:12,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126433708] [2024-11-13 15:57:12,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126433708] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:57:12,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279287180] [2024-11-13 15:57:12,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:12,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:12,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:57:12,357 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:57:12,359 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 15:57:12,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:12,519 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 15:57:12,521 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:57:12,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 15:57:12,559 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:57:12,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279287180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:12,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:57:12,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2024-11-13 15:57:12,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209136320] [2024-11-13 15:57:12,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:12,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:57:12,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:12,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:57:12,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:57:12,561 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2024-11-13 15:57:12,561 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 119 transitions, 554 flow. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-11-13 15:57:12,561 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:12,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2024-11-13 15:57:12,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:13,968 INFO L124 PetriNetUnfolderBase]: 8100/13472 cut-off events. [2024-11-13 15:57:13,968 INFO L125 PetriNetUnfolderBase]: For 968/968 co-relation queries the response was YES. [2024-11-13 15:57:14,001 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25828 conditions, 13472 events. 8100/13472 cut-off events. For 968/968 co-relation queries the response was YES. Maximal size of possible extension queue 754. Compared 99993 event pairs, 7346 based on Foata normal form. 0/8436 useless extension candidates. Maximal degree in co-relation 25672. Up to 11060 conditions per place. [2024-11-13 15:57:14,055 INFO L140 encePairwiseOnDemand]: 89/92 looper letters, 93 selfloop transitions, 1 changer transitions 0/117 dead transitions. [2024-11-13 15:57:14,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 117 transitions, 734 flow [2024-11-13 15:57:14,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:57:14,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:57:14,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2024-11-13 15:57:14,057 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5072463768115942 [2024-11-13 15:57:14,057 INFO L175 Difference]: Start difference. First operand has 95 places, 119 transitions, 554 flow. Second operand 3 states and 140 transitions. [2024-11-13 15:57:14,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 117 transitions, 734 flow [2024-11-13 15:57:14,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 117 transitions, 730 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-13 15:57:14,064 INFO L231 Difference]: Finished difference. Result has 94 places, 117 transitions, 544 flow [2024-11-13 15:57:14,064 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=542, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=544, PETRI_PLACES=94, PETRI_TRANSITIONS=117} [2024-11-13 15:57:14,065 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 7 predicate places. [2024-11-13 15:57:14,065 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 117 transitions, 544 flow [2024-11-13 15:57:14,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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) [2024-11-13 15:57:14,065 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:14,065 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:14,089 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 15:57:14,269 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:14,270 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-11-13 15:57:14,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:14,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1481305113, now seen corresponding path program 1 times [2024-11-13 15:57:14,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:14,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474449655] [2024-11-13 15:57:14,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:14,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:14,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:14,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:14,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:14,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474449655] [2024-11-13 15:57:14,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474449655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:14,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:57:14,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:57:14,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1260654418] [2024-11-13 15:57:14,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:14,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:57:14,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:14,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:57:14,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:57:14,603 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2024-11-13 15:57:14,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 117 transitions, 544 flow. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-11-13 15:57:14,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:14,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2024-11-13 15:57:14,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:15,718 INFO L124 PetriNetUnfolderBase]: 7403/11912 cut-off events. [2024-11-13 15:57:15,718 INFO L125 PetriNetUnfolderBase]: For 1055/1055 co-relation queries the response was YES. [2024-11-13 15:57:15,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23915 conditions, 11912 events. 7403/11912 cut-off events. For 1055/1055 co-relation queries the response was YES. Maximal size of possible extension queue 565. Compared 82625 event pairs, 2706 based on Foata normal form. 204/7565 useless extension candidates. Maximal degree in co-relation 23899. Up to 8609 conditions per place. [2024-11-13 15:57:15,766 INFO L140 encePairwiseOnDemand]: 88/92 looper letters, 117 selfloop transitions, 2 changer transitions 1/143 dead transitions. [2024-11-13 15:57:15,766 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 143 transitions, 845 flow [2024-11-13 15:57:15,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:57:15,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:57:15,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 166 transitions. [2024-11-13 15:57:15,767 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6014492753623188 [2024-11-13 15:57:15,767 INFO L175 Difference]: Start difference. First operand has 94 places, 117 transitions, 544 flow. Second operand 3 states and 166 transitions. [2024-11-13 15:57:15,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 143 transitions, 845 flow [2024-11-13 15:57:15,771 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 143 transitions, 844 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:57:15,774 INFO L231 Difference]: Finished difference. Result has 96 places, 117 transitions, 548 flow [2024-11-13 15:57:15,774 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=543, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=548, PETRI_PLACES=96, PETRI_TRANSITIONS=117} [2024-11-13 15:57:15,775 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 9 predicate places. [2024-11-13 15:57:15,775 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 117 transitions, 548 flow [2024-11-13 15:57:15,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-11-13 15:57:15,776 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:15,776 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:15,776 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:57:15,776 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-11-13 15:57:15,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:15,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1748334123, now seen corresponding path program 1 times [2024-11-13 15:57:15,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:15,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692546593] [2024-11-13 15:57:15,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:15,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:15,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:15,858 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 15:57:15,858 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:15,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692546593] [2024-11-13 15:57:15,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692546593] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:15,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:57:15,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:57:15,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293604180] [2024-11-13 15:57:15,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:15,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:57:15,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:15,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:57:15,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:57:15,861 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2024-11-13 15:57:15,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 117 transitions, 548 flow. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-11-13 15:57:15,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:15,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2024-11-13 15:57:15,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:18,037 INFO L124 PetriNetUnfolderBase]: 13317/21491 cut-off events. [2024-11-13 15:57:18,037 INFO L125 PetriNetUnfolderBase]: For 2744/2828 co-relation queries the response was YES. [2024-11-13 15:57:18,105 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44311 conditions, 21491 events. 13317/21491 cut-off events. For 2744/2828 co-relation queries the response was YES. Maximal size of possible extension queue 852. Compared 161406 event pairs, 9148 based on Foata normal form. 0/14356 useless extension candidates. Maximal degree in co-relation 44293. Up to 9992 conditions per place. [2024-11-13 15:57:18,181 INFO L140 encePairwiseOnDemand]: 88/92 looper letters, 130 selfloop transitions, 2 changer transitions 0/155 dead transitions. [2024-11-13 15:57:18,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 155 transitions, 908 flow [2024-11-13 15:57:18,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:57:18,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:57:18,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 177 transitions. [2024-11-13 15:57:18,183 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6413043478260869 [2024-11-13 15:57:18,183 INFO L175 Difference]: Start difference. First operand has 96 places, 117 transitions, 548 flow. Second operand 3 states and 177 transitions. [2024-11-13 15:57:18,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 155 transitions, 908 flow [2024-11-13 15:57:18,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 155 transitions, 905 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:57:18,191 INFO L231 Difference]: Finished difference. Result has 98 places, 118 transitions, 560 flow [2024-11-13 15:57:18,191 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=560, PETRI_PLACES=98, PETRI_TRANSITIONS=118} [2024-11-13 15:57:18,192 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 11 predicate places. [2024-11-13 15:57:18,192 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 118 transitions, 560 flow [2024-11-13 15:57:18,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-11-13 15:57:18,193 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:18,193 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:18,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:57:18,193 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-11-13 15:57:18,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:18,194 INFO L85 PathProgramCache]: Analyzing trace with hash 1748334121, now seen corresponding path program 1 times [2024-11-13 15:57:18,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:18,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191926091] [2024-11-13 15:57:18,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:18,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:18,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:18,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 15:57:18,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:18,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191926091] [2024-11-13 15:57:18,301 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191926091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:18,301 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:57:18,301 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:57:18,301 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212646311] [2024-11-13 15:57:18,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:18,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:57:18,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:18,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:57:18,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:57:18,306 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2024-11-13 15:57:18,307 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 118 transitions, 560 flow. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-11-13 15:57:18,307 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:18,307 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2024-11-13 15:57:18,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:20,289 INFO L124 PetriNetUnfolderBase]: 12865/20381 cut-off events. [2024-11-13 15:57:20,290 INFO L125 PetriNetUnfolderBase]: For 3645/3663 co-relation queries the response was YES. [2024-11-13 15:57:20,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43355 conditions, 20381 events. 12865/20381 cut-off events. For 3645/3663 co-relation queries the response was YES. Maximal size of possible extension queue 786. Compared 146326 event pairs, 6590 based on Foata normal form. 0/14399 useless extension candidates. Maximal degree in co-relation 43336. Up to 17452 conditions per place. [2024-11-13 15:57:20,430 INFO L140 encePairwiseOnDemand]: 86/92 looper letters, 97 selfloop transitions, 9 changer transitions 0/129 dead transitions. [2024-11-13 15:57:20,431 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 129 transitions, 806 flow [2024-11-13 15:57:20,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:57:20,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:57:20,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 150 transitions. [2024-11-13 15:57:20,432 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5434782608695652 [2024-11-13 15:57:20,432 INFO L175 Difference]: Start difference. First operand has 98 places, 118 transitions, 560 flow. Second operand 3 states and 150 transitions. [2024-11-13 15:57:20,432 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 129 transitions, 806 flow [2024-11-13 15:57:20,436 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 129 transitions, 803 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:57:20,439 INFO L231 Difference]: Finished difference. Result has 99 places, 120 transitions, 601 flow [2024-11-13 15:57:20,439 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=556, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=601, PETRI_PLACES=99, PETRI_TRANSITIONS=120} [2024-11-13 15:57:20,440 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 12 predicate places. [2024-11-13 15:57:20,440 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 120 transitions, 601 flow [2024-11-13 15:57:20,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 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) [2024-11-13 15:57:20,440 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:20,440 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:20,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 15:57:20,441 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-11-13 15:57:20,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:20,441 INFO L85 PathProgramCache]: Analyzing trace with hash 1489468269, now seen corresponding path program 1 times [2024-11-13 15:57:20,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:20,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291489936] [2024-11-13 15:57:20,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:20,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:20,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 15:57:20,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:20,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291489936] [2024-11-13 15:57:20,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291489936] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:20,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:57:20,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:57:20,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637157438] [2024-11-13 15:57:20,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:20,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:57:20,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:20,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:57:20,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:57:20,537 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2024-11-13 15:57:20,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 120 transitions, 601 flow. Second operand has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2024-11-13 15:57:20,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:20,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2024-11-13 15:57:20,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:21,860 INFO L124 PetriNetUnfolderBase]: 7505/12258 cut-off events. [2024-11-13 15:57:21,860 INFO L125 PetriNetUnfolderBase]: For 3738/3780 co-relation queries the response was YES. [2024-11-13 15:57:21,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26887 conditions, 12258 events. 7505/12258 cut-off events. For 3738/3780 co-relation queries the response was YES. Maximal size of possible extension queue 507. Compared 84530 event pairs, 4294 based on Foata normal form. 64/8681 useless extension candidates. Maximal degree in co-relation 26866. Up to 9997 conditions per place. [2024-11-13 15:57:21,931 INFO L140 encePairwiseOnDemand]: 88/92 looper letters, 109 selfloop transitions, 4 changer transitions 0/136 dead transitions. [2024-11-13 15:57:21,931 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 136 transitions, 865 flow [2024-11-13 15:57:21,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:57:21,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:57:21,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 156 transitions. [2024-11-13 15:57:21,933 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5652173913043478 [2024-11-13 15:57:21,933 INFO L175 Difference]: Start difference. First operand has 99 places, 120 transitions, 601 flow. Second operand 3 states and 156 transitions. [2024-11-13 15:57:21,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 136 transitions, 865 flow [2024-11-13 15:57:21,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 136 transitions, 857 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:57:21,937 INFO L231 Difference]: Finished difference. Result has 101 places, 120 transitions, 608 flow [2024-11-13 15:57:21,937 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=586, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=608, PETRI_PLACES=101, PETRI_TRANSITIONS=120} [2024-11-13 15:57:21,938 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 14 predicate places. [2024-11-13 15:57:21,938 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 120 transitions, 608 flow [2024-11-13 15:57:21,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.0) internal successors, (99), 3 states have internal predecessors, (99), 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) [2024-11-13 15:57:21,938 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:21,938 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:21,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 15:57:21,939 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-11-13 15:57:21,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:21,939 INFO L85 PathProgramCache]: Analyzing trace with hash 1748334122, now seen corresponding path program 1 times [2024-11-13 15:57:21,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:21,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349399193] [2024-11-13 15:57:21,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:21,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:21,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:22,136 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:22,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:22,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349399193] [2024-11-13 15:57:22,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [349399193] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:57:22,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [582048191] [2024-11-13 15:57:22,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:22,138 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:22,138 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:57:22,140 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:57:22,143 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 15:57:22,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:22,280 INFO L255 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:57:22,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:57:22,367 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 15:57:22,367 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:57:22,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [582048191] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:22,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:57:22,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 7 [2024-11-13 15:57:22,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614752564] [2024-11-13 15:57:22,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:22,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:57:22,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:22,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:57:22,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:57:22,374 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2024-11-13 15:57:22,375 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 120 transitions, 608 flow. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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) [2024-11-13 15:57:22,375 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:22,375 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2024-11-13 15:57:22,375 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:23,701 INFO L124 PetriNetUnfolderBase]: 7727/12878 cut-off events. [2024-11-13 15:57:23,701 INFO L125 PetriNetUnfolderBase]: For 6425/6479 co-relation queries the response was YES. [2024-11-13 15:57:23,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29436 conditions, 12878 events. 7727/12878 cut-off events. For 6425/6479 co-relation queries the response was YES. Maximal size of possible extension queue 494. Compared 90681 event pairs, 3366 based on Foata normal form. 206/9517 useless extension candidates. Maximal degree in co-relation 29413. Up to 5773 conditions per place. [2024-11-13 15:57:23,792 INFO L140 encePairwiseOnDemand]: 84/92 looper letters, 108 selfloop transitions, 14 changer transitions 0/145 dead transitions. [2024-11-13 15:57:23,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 145 transitions, 929 flow [2024-11-13 15:57:23,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:57:23,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:57:23,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 191 transitions. [2024-11-13 15:57:23,794 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5190217391304348 [2024-11-13 15:57:23,794 INFO L175 Difference]: Start difference. First operand has 101 places, 120 transitions, 608 flow. Second operand 4 states and 191 transitions. [2024-11-13 15:57:23,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 145 transitions, 929 flow [2024-11-13 15:57:23,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 145 transitions, 925 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:57:23,804 INFO L231 Difference]: Finished difference. Result has 104 places, 121 transitions, 675 flow [2024-11-13 15:57:23,804 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=675, PETRI_PLACES=104, PETRI_TRANSITIONS=121} [2024-11-13 15:57:23,805 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 17 predicate places. [2024-11-13 15:57:23,805 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 121 transitions, 675 flow [2024-11-13 15:57:23,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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) [2024-11-13 15:57:23,805 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:23,805 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:23,825 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-13 15:57:24,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:24,006 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-11-13 15:57:24,006 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:24,006 INFO L85 PathProgramCache]: Analyzing trace with hash -1636214893, now seen corresponding path program 1 times [2024-11-13 15:57:24,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:24,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208709822] [2024-11-13 15:57:24,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:24,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:24,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:24,199 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 15:57:24,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:24,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208709822] [2024-11-13 15:57:24,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208709822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:24,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:57:24,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:57:24,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938756865] [2024-11-13 15:57:24,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:24,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:57:24,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:24,201 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:57:24,201 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:57:24,203 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2024-11-13 15:57:24,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 121 transitions, 675 flow. Second operand has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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) [2024-11-13 15:57:24,204 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:24,204 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2024-11-13 15:57:24,204 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:26,026 INFO L124 PetriNetUnfolderBase]: 11608/18611 cut-off events. [2024-11-13 15:57:26,027 INFO L125 PetriNetUnfolderBase]: For 20272/20410 co-relation queries the response was YES. [2024-11-13 15:57:26,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48206 conditions, 18611 events. 11608/18611 cut-off events. For 20272/20410 co-relation queries the response was YES. Maximal size of possible extension queue 659. Compared 131609 event pairs, 9502 based on Foata normal form. 305/13998 useless extension candidates. Maximal degree in co-relation 48180. Up to 11674 conditions per place. [2024-11-13 15:57:26,136 INFO L140 encePairwiseOnDemand]: 81/92 looper letters, 122 selfloop transitions, 12 changer transitions 0/157 dead transitions. [2024-11-13 15:57:26,136 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 157 transitions, 1119 flow [2024-11-13 15:57:26,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:57:26,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:57:26,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 205 transitions. [2024-11-13 15:57:26,138 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5570652173913043 [2024-11-13 15:57:26,138 INFO L175 Difference]: Start difference. First operand has 104 places, 121 transitions, 675 flow. Second operand 4 states and 205 transitions. [2024-11-13 15:57:26,138 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 157 transitions, 1119 flow [2024-11-13 15:57:26,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 157 transitions, 1118 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:57:26,149 INFO L231 Difference]: Finished difference. Result has 107 places, 121 transitions, 715 flow [2024-11-13 15:57:26,149 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=674, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=715, PETRI_PLACES=107, PETRI_TRANSITIONS=121} [2024-11-13 15:57:26,150 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 20 predicate places. [2024-11-13 15:57:26,150 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 121 transitions, 715 flow [2024-11-13 15:57:26,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.75) internal successors, (127), 4 states have internal predecessors, (127), 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) [2024-11-13 15:57:26,151 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:26,151 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-13 15:57:26,151 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 15:57:26,151 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-11-13 15:57:26,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:26,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1214095271, now seen corresponding path program 2 times [2024-11-13 15:57:26,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:26,152 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863425444] [2024-11-13 15:57:26,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:26,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:26,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:26,330 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:26,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:26,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863425444] [2024-11-13 15:57:26,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863425444] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:57:26,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1084666384] [2024-11-13 15:57:26,331 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:57:26,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:26,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:57:26,334 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:57:26,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 15:57:26,450 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 15:57:26,450 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:57:26,451 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 15:57:26,452 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:57:26,513 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-13 15:57:26,513 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:57:26,559 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-13 15:57:26,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1084666384] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:57:26,560 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:57:26,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-13 15:57:26,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240836525] [2024-11-13 15:57:26,560 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:57:26,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 15:57:26,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:26,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 15:57:26,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-13 15:57:26,639 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 92 [2024-11-13 15:57:26,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 121 transitions, 715 flow. Second operand has 14 states, 14 states have (on average 24.142857142857142) internal successors, (338), 14 states have internal predecessors, (338), 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) [2024-11-13 15:57:26,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:26,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 92 [2024-11-13 15:57:26,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:28,959 INFO L124 PetriNetUnfolderBase]: 11630/18673 cut-off events. [2024-11-13 15:57:28,959 INFO L125 PetriNetUnfolderBase]: For 20735/20891 co-relation queries the response was YES. [2024-11-13 15:57:29,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50170 conditions, 18673 events. 11630/18673 cut-off events. For 20735/20891 co-relation queries the response was YES. Maximal size of possible extension queue 659. Compared 132658 event pairs, 9513 based on Foata normal form. 6/13770 useless extension candidates. Maximal degree in co-relation 50143. Up to 16311 conditions per place. [2024-11-13 15:57:29,055 INFO L140 encePairwiseOnDemand]: 79/92 looper letters, 54 selfloop transitions, 56 changer transitions 0/130 dead transitions. [2024-11-13 15:57:29,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 130 transitions, 1006 flow [2024-11-13 15:57:29,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-13 15:57:29,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-13 15:57:29,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 652 transitions. [2024-11-13 15:57:29,060 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.29528985507246375 [2024-11-13 15:57:29,060 INFO L175 Difference]: Start difference. First operand has 107 places, 121 transitions, 715 flow. Second operand 24 states and 652 transitions. [2024-11-13 15:57:29,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 130 transitions, 1006 flow [2024-11-13 15:57:29,070 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 130 transitions, 993 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:57:29,073 INFO L231 Difference]: Finished difference. Result has 130 places, 130 transitions, 910 flow [2024-11-13 15:57:29,073 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=694, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=910, PETRI_PLACES=130, PETRI_TRANSITIONS=130} [2024-11-13 15:57:29,074 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 43 predicate places. [2024-11-13 15:57:29,074 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 130 transitions, 910 flow [2024-11-13 15:57:29,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 24.142857142857142) internal successors, (338), 14 states have internal predecessors, (338), 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) [2024-11-13 15:57:29,075 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:29,075 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:29,100 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 15:57:29,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:29,279 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-11-13 15:57:29,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:29,280 INFO L85 PathProgramCache]: Analyzing trace with hash 771683266, now seen corresponding path program 1 times [2024-11-13 15:57:29,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:29,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1010214065] [2024-11-13 15:57:29,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:29,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:29,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:29,419 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 15:57:29,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:29,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1010214065] [2024-11-13 15:57:29,419 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1010214065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:29,419 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:57:29,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:57:29,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650587023] [2024-11-13 15:57:29,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:29,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:57:29,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:29,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:57:29,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:57:29,421 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2024-11-13 15:57:29,421 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 130 transitions, 910 flow. Second operand has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2024-11-13 15:57:29,421 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:29,421 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2024-11-13 15:57:29,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:31,569 INFO L124 PetriNetUnfolderBase]: 13113/21531 cut-off events. [2024-11-13 15:57:31,569 INFO L125 PetriNetUnfolderBase]: For 24463/24565 co-relation queries the response was YES. [2024-11-13 15:57:31,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58222 conditions, 21531 events. 13113/21531 cut-off events. For 24463/24565 co-relation queries the response was YES. Maximal size of possible extension queue 681. Compared 157102 event pairs, 10762 based on Foata normal form. 352/16607 useless extension candidates. Maximal degree in co-relation 58192. Up to 16360 conditions per place. [2024-11-13 15:57:31,699 INFO L140 encePairwiseOnDemand]: 85/92 looper letters, 141 selfloop transitions, 9 changer transitions 7/179 dead transitions. [2024-11-13 15:57:31,700 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 179 transitions, 1598 flow [2024-11-13 15:57:31,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:57:31,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:57:31,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 199 transitions. [2024-11-13 15:57:31,701 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5407608695652174 [2024-11-13 15:57:31,701 INFO L175 Difference]: Start difference. First operand has 130 places, 130 transitions, 910 flow. Second operand 4 states and 199 transitions. [2024-11-13 15:57:31,701 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 179 transitions, 1598 flow [2024-11-13 15:57:31,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 179 transitions, 1443 flow, removed 17 selfloop flow, removed 10 redundant places. [2024-11-13 15:57:31,719 INFO L231 Difference]: Finished difference. Result has 124 places, 130 transitions, 811 flow [2024-11-13 15:57:31,720 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=784, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=811, PETRI_PLACES=124, PETRI_TRANSITIONS=130} [2024-11-13 15:57:31,720 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 37 predicate places. [2024-11-13 15:57:31,720 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 130 transitions, 811 flow [2024-11-13 15:57:31,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.75) internal successors, (131), 4 states have internal predecessors, (131), 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) [2024-11-13 15:57:31,721 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:31,721 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:31,721 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 15:57:31,721 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-11-13 15:57:31,721 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:31,721 INFO L85 PathProgramCache]: Analyzing trace with hash -96899401, now seen corresponding path program 1 times [2024-11-13 15:57:31,722 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:31,722 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818904588] [2024-11-13 15:57:31,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:31,722 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:31,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:31,949 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 15:57:31,950 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:31,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818904588] [2024-11-13 15:57:31,950 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818904588] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:57:31,950 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986713343] [2024-11-13 15:57:31,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:31,950 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:31,950 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:57:31,953 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:57:31,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 15:57:32,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:32,102 INFO L255 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:57:32,103 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:57:32,152 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 15:57:32,152 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:57:32,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986713343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:32,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:57:32,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [5] total 6 [2024-11-13 15:57:32,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558331331] [2024-11-13 15:57:32,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:32,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:57:32,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:32,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:57:32,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 15:57:32,153 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2024-11-13 15:57:32,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 130 transitions, 811 flow. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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) [2024-11-13 15:57:32,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:32,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2024-11-13 15:57:32,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:34,062 INFO L124 PetriNetUnfolderBase]: 11992/19866 cut-off events. [2024-11-13 15:57:34,062 INFO L125 PetriNetUnfolderBase]: For 23610/23718 co-relation queries the response was YES. [2024-11-13 15:57:34,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55627 conditions, 19866 events. 11992/19866 cut-off events. For 23610/23718 co-relation queries the response was YES. Maximal size of possible extension queue 597. Compared 144084 event pairs, 9779 based on Foata normal form. 0/15304 useless extension candidates. Maximal degree in co-relation 55598. Up to 17170 conditions per place. [2024-11-13 15:57:34,199 INFO L140 encePairwiseOnDemand]: 89/92 looper letters, 105 selfloop transitions, 1 changer transitions 0/128 dead transitions. [2024-11-13 15:57:34,199 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 128 transitions, 1015 flow [2024-11-13 15:57:34,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:57:34,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:57:34,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 136 transitions. [2024-11-13 15:57:34,200 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4927536231884058 [2024-11-13 15:57:34,200 INFO L175 Difference]: Start difference. First operand has 124 places, 130 transitions, 811 flow. Second operand 3 states and 136 transitions. [2024-11-13 15:57:34,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 128 transitions, 1015 flow [2024-11-13 15:57:34,214 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 128 transitions, 983 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-13 15:57:34,215 INFO L231 Difference]: Finished difference. Result has 122 places, 128 transitions, 773 flow [2024-11-13 15:57:34,215 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=771, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=773, PETRI_PLACES=122, PETRI_TRANSITIONS=128} [2024-11-13 15:57:34,216 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 35 predicate places. [2024-11-13 15:57:34,216 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 128 transitions, 773 flow [2024-11-13 15:57:34,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 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) [2024-11-13 15:57:34,216 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:34,216 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:34,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 15:57:34,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:34,417 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-11-13 15:57:34,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:34,417 INFO L85 PathProgramCache]: Analyzing trace with hash -96899400, now seen corresponding path program 1 times [2024-11-13 15:57:34,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:34,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272961093] [2024-11-13 15:57:34,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:34,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:34,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:34,592 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 15:57:34,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:34,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272961093] [2024-11-13 15:57:34,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272961093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:34,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:57:34,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:57:34,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62227118] [2024-11-13 15:57:34,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:34,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:57:34,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:34,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:57:34,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:57:34,602 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 92 [2024-11-13 15:57:34,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 128 transitions, 773 flow. Second operand has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 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) [2024-11-13 15:57:34,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:34,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 92 [2024-11-13 15:57:34,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:37,439 INFO L124 PetriNetUnfolderBase]: 17133/28073 cut-off events. [2024-11-13 15:57:37,439 INFO L125 PetriNetUnfolderBase]: For 28232/28232 co-relation queries the response was YES. [2024-11-13 15:57:37,542 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76924 conditions, 28073 events. 17133/28073 cut-off events. For 28232/28232 co-relation queries the response was YES. Maximal size of possible extension queue 705. Compared 205806 event pairs, 6336 based on Foata normal form. 438/22285 useless extension candidates. Maximal degree in co-relation 76895. Up to 9985 conditions per place. [2024-11-13 15:57:37,623 INFO L140 encePairwiseOnDemand]: 87/92 looper letters, 172 selfloop transitions, 6 changer transitions 0/197 dead transitions. [2024-11-13 15:57:37,623 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 197 transitions, 1416 flow [2024-11-13 15:57:37,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:57:37,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 15:57:37,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 248 transitions. [2024-11-13 15:57:37,625 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5391304347826087 [2024-11-13 15:57:37,625 INFO L175 Difference]: Start difference. First operand has 122 places, 128 transitions, 773 flow. Second operand 5 states and 248 transitions. [2024-11-13 15:57:37,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 197 transitions, 1416 flow [2024-11-13 15:57:37,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 197 transitions, 1415 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:57:37,730 INFO L231 Difference]: Finished difference. Result has 128 places, 133 transitions, 819 flow [2024-11-13 15:57:37,730 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=772, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=819, PETRI_PLACES=128, PETRI_TRANSITIONS=133} [2024-11-13 15:57:37,731 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 41 predicate places. [2024-11-13 15:57:37,731 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 133 transitions, 819 flow [2024-11-13 15:57:37,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.75) internal successors, (119), 4 states have internal predecessors, (119), 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) [2024-11-13 15:57:37,731 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:37,731 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:37,731 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 15:57:37,732 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-11-13 15:57:37,732 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:37,732 INFO L85 PathProgramCache]: Analyzing trace with hash -1900754076, now seen corresponding path program 1 times [2024-11-13 15:57:37,732 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:37,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535752713] [2024-11-13 15:57:37,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:37,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:37,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:37,794 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 15:57:37,794 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:37,794 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535752713] [2024-11-13 15:57:37,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535752713] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:37,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:57:37,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:57:37,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136546788] [2024-11-13 15:57:37,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:37,795 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:57:37,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:37,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:57:37,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:57:37,796 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 92 [2024-11-13 15:57:37,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 133 transitions, 819 flow. Second operand has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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) [2024-11-13 15:57:37,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:37,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 92 [2024-11-13 15:57:37,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:40,456 INFO L124 PetriNetUnfolderBase]: 13521/22589 cut-off events. [2024-11-13 15:57:40,456 INFO L125 PetriNetUnfolderBase]: For 27350/27488 co-relation queries the response was YES. [2024-11-13 15:57:40,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64214 conditions, 22589 events. 13521/22589 cut-off events. For 27350/27488 co-relation queries the response was YES. Maximal size of possible extension queue 619. Compared 166590 event pairs, 6554 based on Foata normal form. 42/17965 useless extension candidates. Maximal degree in co-relation 64181. Up to 19208 conditions per place. [2024-11-13 15:57:40,642 INFO L140 encePairwiseOnDemand]: 90/92 looper letters, 113 selfloop transitions, 1 changer transitions 0/139 dead transitions. [2024-11-13 15:57:40,643 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 139 transitions, 1056 flow [2024-11-13 15:57:40,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:57:40,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:57:40,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 141 transitions. [2024-11-13 15:57:40,644 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5108695652173914 [2024-11-13 15:57:40,644 INFO L175 Difference]: Start difference. First operand has 128 places, 133 transitions, 819 flow. Second operand 3 states and 141 transitions. [2024-11-13 15:57:40,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 139 transitions, 1056 flow [2024-11-13 15:57:40,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 139 transitions, 1056 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:57:40,670 INFO L231 Difference]: Finished difference. Result has 129 places, 132 transitions, 813 flow [2024-11-13 15:57:40,670 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=811, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=813, PETRI_PLACES=129, PETRI_TRANSITIONS=132} [2024-11-13 15:57:40,671 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 42 predicate places. [2024-11-13 15:57:40,671 INFO L471 AbstractCegarLoop]: Abstraction has has 129 places, 132 transitions, 813 flow [2024-11-13 15:57:40,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.666666666666664) internal successors, (101), 3 states have internal predecessors, (101), 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) [2024-11-13 15:57:40,671 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:40,671 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:40,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 15:57:40,672 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-11-13 15:57:40,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:40,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1900754075, now seen corresponding path program 1 times [2024-11-13 15:57:40,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:40,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949284760] [2024-11-13 15:57:40,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:40,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:40,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:40,786 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 15:57:40,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:40,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949284760] [2024-11-13 15:57:40,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949284760] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:57:40,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1188739689] [2024-11-13 15:57:40,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:40,787 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:40,787 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:57:40,789 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:57:40,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 15:57:40,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:40,932 INFO L255 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-13 15:57:40,934 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:57:41,094 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 5 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:41,094 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:57:41,297 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:41,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1188739689] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:57:41,297 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:57:41,298 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 7, 7] total 15 [2024-11-13 15:57:41,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1660981650] [2024-11-13 15:57:41,298 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:57:41,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-13 15:57:41,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:41,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-13 15:57:41,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-11-13 15:57:41,456 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 92 [2024-11-13 15:57:41,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 132 transitions, 813 flow. Second operand has 15 states, 15 states have (on average 25.4) internal successors, (381), 15 states have internal predecessors, (381), 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) [2024-11-13 15:57:41,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:41,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 92 [2024-11-13 15:57:41,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:48,565 INFO L124 PetriNetUnfolderBase]: 27331/45658 cut-off events. [2024-11-13 15:57:48,565 INFO L125 PetriNetUnfolderBase]: For 63595/63747 co-relation queries the response was YES. [2024-11-13 15:57:48,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 128820 conditions, 45658 events. 27331/45658 cut-off events. For 63595/63747 co-relation queries the response was YES. Maximal size of possible extension queue 1064. Compared 370510 event pairs, 12044 based on Foata normal form. 820/37585 useless extension candidates. Maximal degree in co-relation 128786. Up to 16093 conditions per place. [2024-11-13 15:57:49,138 INFO L140 encePairwiseOnDemand]: 77/92 looper letters, 274 selfloop transitions, 53 changer transitions 6/356 dead transitions. [2024-11-13 15:57:49,139 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 356 transitions, 2690 flow [2024-11-13 15:57:49,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-13 15:57:49,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-13 15:57:49,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 616 transitions. [2024-11-13 15:57:49,142 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3938618925831202 [2024-11-13 15:57:49,142 INFO L175 Difference]: Start difference. First operand has 129 places, 132 transitions, 813 flow. Second operand 17 states and 616 transitions. [2024-11-13 15:57:49,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 356 transitions, 2690 flow [2024-11-13 15:57:49,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 356 transitions, 2688 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:57:49,203 INFO L231 Difference]: Finished difference. Result has 154 places, 167 transitions, 1360 flow [2024-11-13 15:57:49,204 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=812, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1360, PETRI_PLACES=154, PETRI_TRANSITIONS=167} [2024-11-13 15:57:49,204 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 67 predicate places. [2024-11-13 15:57:49,204 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 167 transitions, 1360 flow [2024-11-13 15:57:49,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 25.4) internal successors, (381), 15 states have internal predecessors, (381), 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) [2024-11-13 15:57:49,205 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:49,205 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:49,229 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 15:57:49,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-13 15:57:49,406 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-11-13 15:57:49,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:49,407 INFO L85 PathProgramCache]: Analyzing trace with hash 2062211589, now seen corresponding path program 1 times [2024-11-13 15:57:49,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:49,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780792777] [2024-11-13 15:57:49,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:49,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:49,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:50,378 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:50,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:50,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780792777] [2024-11-13 15:57:50,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1780792777] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:57:50,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2144541394] [2024-11-13 15:57:50,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:50,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:50,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:57:50,382 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:57:50,385 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 15:57:50,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:50,551 INFO L255 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 15:57:50,554 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:57:50,657 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 15:57:50,658 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:57:50,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2144541394] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:50,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:57:50,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 12 [2024-11-13 15:57:50,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084369550] [2024-11-13 15:57:50,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:50,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:57:50,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:50,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:57:50,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:57:50,689 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 92 [2024-11-13 15:57:50,690 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 167 transitions, 1360 flow. Second operand has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 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) [2024-11-13 15:57:50,690 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:50,690 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 92 [2024-11-13 15:57:50,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:58,129 INFO L124 PetriNetUnfolderBase]: 31147/51042 cut-off events. [2024-11-13 15:57:58,129 INFO L125 PetriNetUnfolderBase]: For 83853/84087 co-relation queries the response was YES. [2024-11-13 15:57:58,374 INFO L83 FinitePrefix]: Finished finitePrefix Result has 148065 conditions, 51042 events. 31147/51042 cut-off events. For 83853/84087 co-relation queries the response was YES. Maximal size of possible extension queue 1217. Compared 404715 event pairs, 12268 based on Foata normal form. 130/40450 useless extension candidates. Maximal degree in co-relation 148020. Up to 27269 conditions per place. [2024-11-13 15:57:58,517 INFO L140 encePairwiseOnDemand]: 84/92 looper letters, 188 selfloop transitions, 10 changer transitions 0/221 dead transitions. [2024-11-13 15:57:58,517 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 221 transitions, 1987 flow [2024-11-13 15:57:58,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:57:58,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 15:57:58,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 236 transitions. [2024-11-13 15:57:58,519 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5130434782608696 [2024-11-13 15:57:58,519 INFO L175 Difference]: Start difference. First operand has 154 places, 167 transitions, 1360 flow. Second operand 5 states and 236 transitions. [2024-11-13 15:57:58,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 221 transitions, 1987 flow [2024-11-13 15:57:58,584 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 221 transitions, 1959 flow, removed 8 selfloop flow, removed 4 redundant places. [2024-11-13 15:57:58,586 INFO L231 Difference]: Finished difference. Result has 157 places, 170 transitions, 1391 flow [2024-11-13 15:57:58,587 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=1334, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1391, PETRI_PLACES=157, PETRI_TRANSITIONS=170} [2024-11-13 15:57:58,587 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 70 predicate places. [2024-11-13 15:57:58,587 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 170 transitions, 1391 flow [2024-11-13 15:57:58,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 30.4) internal successors, (152), 5 states have internal predecessors, (152), 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) [2024-11-13 15:57:58,587 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:58,587 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 1, 1, 1] [2024-11-13 15:57:58,601 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-13 15:57:58,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-13 15:57:58,788 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-11-13 15:57:58,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:58,788 INFO L85 PathProgramCache]: Analyzing trace with hash -451587913, now seen corresponding path program 1 times [2024-11-13 15:57:58,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:58,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105349331] [2024-11-13 15:57:58,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:58,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:58,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:59,027 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:59,028 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:59,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105349331] [2024-11-13 15:57:59,028 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105349331] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:57:59,028 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396464303] [2024-11-13 15:57:59,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:59,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:59,028 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:57:59,030 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:57:59,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 15:57:59,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:59,153 INFO L255 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 15:57:59,154 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:57:59,209 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:59,209 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:57:59,458 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:59,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396464303] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:57:59,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:57:59,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 27 [2024-11-13 15:57:59,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506331527] [2024-11-13 15:57:59,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:57:59,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-13 15:57:59,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:59,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-13 15:57:59,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=547, Unknown=0, NotChecked=0, Total=756 [2024-11-13 15:57:59,538 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 92 [2024-11-13 15:57:59,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 170 transitions, 1391 flow. Second operand has 28 states, 28 states have (on average 24.071428571428573) internal successors, (674), 28 states have internal predecessors, (674), 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) [2024-11-13 15:57:59,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:59,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 92 [2024-11-13 15:57:59,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:58:06,938 INFO L124 PetriNetUnfolderBase]: 25431/42638 cut-off events. [2024-11-13 15:58:06,938 INFO L125 PetriNetUnfolderBase]: For 91170/91398 co-relation queries the response was YES. [2024-11-13 15:58:07,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 131713 conditions, 42638 events. 25431/42638 cut-off events. For 91170/91398 co-relation queries the response was YES. Maximal size of possible extension queue 994. Compared 342386 event pairs, 21140 based on Foata normal form. 155/37139 useless extension candidates. Maximal degree in co-relation 131664. Up to 36438 conditions per place. [2024-11-13 15:58:07,345 INFO L140 encePairwiseOnDemand]: 80/92 looper letters, 68 selfloop transitions, 176 changer transitions 0/268 dead transitions. [2024-11-13 15:58:07,345 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 268 transitions, 2964 flow [2024-11-13 15:58:07,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-13 15:58:07,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-11-13 15:58:07,348 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 768 transitions. [2024-11-13 15:58:07,349 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3210702341137124 [2024-11-13 15:58:07,349 INFO L175 Difference]: Start difference. First operand has 157 places, 170 transitions, 1391 flow. Second operand 26 states and 768 transitions. [2024-11-13 15:58:07,349 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 268 transitions, 2964 flow [2024-11-13 15:58:07,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 268 transitions, 2951 flow, removed 3 selfloop flow, removed 1 redundant places. [2024-11-13 15:58:07,467 INFO L231 Difference]: Finished difference. Result has 188 places, 268 transitions, 2935 flow [2024-11-13 15:58:07,468 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=92, PETRI_DIFFERENCE_MINUEND_FLOW=1378, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=2935, PETRI_PLACES=188, PETRI_TRANSITIONS=268} [2024-11-13 15:58:07,468 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 101 predicate places. [2024-11-13 15:58:07,469 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 268 transitions, 2935 flow [2024-11-13 15:58:07,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 24.071428571428573) internal successors, (674), 28 states have internal predecessors, (674), 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) [2024-11-13 15:58:07,469 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:58:07,469 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:58:07,486 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-13 15:58:07,670 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:58:07,670 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 58 more)] === [2024-11-13 15:58:07,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:58:07,671 INFO L85 PathProgramCache]: Analyzing trace with hash 1680984916, now seen corresponding path program 1 times [2024-11-13 15:58:07,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:58:07,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463740364] [2024-11-13 15:58:07,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:58:07,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:58:07,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:08,895 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:58:08,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:58:08,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463740364] [2024-11-13 15:58:08,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [463740364] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:58:08,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098466124] [2024-11-13 15:58:08,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:58:08,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:58:08,896 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:58:08,898 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:58:08,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6100cb67-3b93-460b-88c1-8235d814d3aa/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 15:58:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:09,066 INFO L255 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 15:58:09,069 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:58:09,163 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-13 15:58:09,163 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:58:09,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098466124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:58:09,164 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:58:09,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 12 [2024-11-13 15:58:09,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779297952] [2024-11-13 15:58:09,164 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:58:09,165 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:58:09,165 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:58:09,165 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:58:09,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=130, Unknown=0, NotChecked=0, Total=156 [2024-11-13 15:58:09,199 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 92 [2024-11-13 15:58:09,199 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 268 transitions, 2935 flow. Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 5 states have internal predecessors, (157), 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) [2024-11-13 15:58:09,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:58:09,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 92 [2024-11-13 15:58:09,200 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand