./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/popl20-more-vector-add.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_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/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_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/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_935172f8-a9ee-40f7-83d1-7d39dc9b032b/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 63e73d2abe89b782ca9e5c579baa72b5461ffc3c60c322f6f03d18cdd5548702 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:21:21,184 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:21:21,251 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 13:21:21,256 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:21:21,257 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:21:21,279 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:21:21,280 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:21:21,280 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:21:21,281 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:21:21,281 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:21:21,281 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:21:21,281 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:21:21,282 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:21:21,282 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:21:21,282 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:21:21,282 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:21:21,282 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:21:21,283 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:21:21,283 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:21:21,283 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:21:21,283 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:21:21,283 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:21:21,283 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:21:21,284 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:21:21,284 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:21:21,284 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 13:21:21,284 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 13:21:21,284 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:21:21,284 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:21:21,285 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:21:21,285 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:21:21,285 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:21:21,285 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:21:21,285 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:21:21,285 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:21:21,286 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:21:21,286 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:21:21,286 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:21:21,286 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:21:21,286 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:21:21,290 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:21:21,290 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:21:21,290 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:21:21,290 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:21:21,290 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_935172f8-a9ee-40f7-83d1-7d39dc9b032b/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 -> 63e73d2abe89b782ca9e5c579baa72b5461ffc3c60c322f6f03d18cdd5548702 [2024-11-13 13:21:21,582 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:21:21,595 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:21:21,599 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:21:21,601 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:21:21,601 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:21:21,604 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c Unable to find full path for "g++" [2024-11-13 13:21:23,589 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:21:23,882 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:21:23,883 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2024-11-13 13:21:23,899 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/data/fca58cf83/4bd18dbf3f6746edb394532f6c9812e9/FLAGbe421ab90 [2024-11-13 13:21:24,171 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/data/fca58cf83/4bd18dbf3f6746edb394532f6c9812e9 [2024-11-13 13:21:24,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:21:24,180 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:21:24,182 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:21:24,182 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:21:24,187 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:21:24,189 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:21:24" (1/1) ... [2024-11-13 13:21:24,190 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@350d8a83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:21:24, skipping insertion in model container [2024-11-13 13:21:24,193 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:21:24" (1/1) ... [2024-11-13 13:21:24,221 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:21:24,473 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:21:24,483 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:21:24,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:21:24,547 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:21:24,548 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:21:24 WrapperNode [2024-11-13 13:21:24,548 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:21:24,550 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:21:24,550 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:21:24,551 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:21:24,559 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:21:24" (1/1) ... [2024-11-13 13:21:24,571 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:21:24" (1/1) ... [2024-11-13 13:21:24,600 INFO L138 Inliner]: procedures = 24, calls = 32, calls flagged for inlining = 12, calls inlined = 18, statements flattened = 191 [2024-11-13 13:21:24,600 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:21:24,601 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:21:24,601 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:21:24,601 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:21:24,609 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:21:24" (1/1) ... [2024-11-13 13:21:24,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:21:24" (1/1) ... [2024-11-13 13:21:24,613 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:21:24" (1/1) ... [2024-11-13 13:21:24,636 INFO L175 MemorySlicer]: Split 17 memory accesses to 2 slices as follows [2, 15]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 7 writes are split as follows [0, 7]. [2024-11-13 13:21:24,636 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:21:24" (1/1) ... [2024-11-13 13:21:24,636 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:21:24" (1/1) ... [2024-11-13 13:21:24,652 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:21:24" (1/1) ... [2024-11-13 13:21:24,664 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:21:24" (1/1) ... [2024-11-13 13:21:24,666 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:21:24" (1/1) ... [2024-11-13 13:21:24,667 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:21:24" (1/1) ... [2024-11-13 13:21:24,674 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:21:24,674 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:21:24,675 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:21:24,675 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:21:24,676 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:21:24" (1/1) ... [2024-11-13 13:21:24,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:21:24,701 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:21:24,716 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:21:24,720 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:21:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:21:24,744 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-13 13:21:24,744 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-13 13:21:24,745 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-13 13:21:24,745 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-13 13:21:24,745 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-13 13:21:24,745 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-13 13:21:24,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:21:24,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 13:21:24,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 13:21:24,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 13:21:24,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 13:21:24,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:21:24,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:21:24,745 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 13:21:24,747 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 13:21:24,749 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 13:21:24,880 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:21:24,882 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:21:25,515 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 13:21:25,515 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:21:25,953 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:21:25,953 INFO L316 CfgBuilder]: Removed 7 assume(true) statements. [2024-11-13 13:21:25,954 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:21:25 BoogieIcfgContainer [2024-11-13 13:21:25,954 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:21:25,956 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:21:25,956 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:21:25,966 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:21:25,967 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:21:24" (1/3) ... [2024-11-13 13:21:25,968 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ccef51e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:21:25, skipping insertion in model container [2024-11-13 13:21:25,968 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:21:24" (2/3) ... [2024-11-13 13:21:25,969 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ccef51e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:21:25, skipping insertion in model container [2024-11-13 13:21:25,969 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:21:25" (3/3) ... [2024-11-13 13:21:25,970 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-vector-add.wvr.c [2024-11-13 13:21:25,984 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:21:25,985 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-vector-add.wvr.c that has 4 procedures, 53 locations, 1 initial locations, 7 loop locations, and 14 error locations. [2024-11-13 13:21:25,986 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 13:21:26,054 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-13 13:21:26,097 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 59 transitions, 139 flow [2024-11-13 13:21:26,150 INFO L124 PetriNetUnfolderBase]: 7/56 cut-off events. [2024-11-13 13:21:26,154 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-13 13:21:26,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69 conditions, 56 events. 7/56 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 134 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 47. Up to 2 conditions per place. [2024-11-13 13:21:26,159 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 59 transitions, 139 flow [2024-11-13 13:21:26,164 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 54 transitions, 123 flow [2024-11-13 13:21:26,178 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:21:26,198 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;@499e9f03, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:21:26,200 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-13 13:21:26,204 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 13:21:26,207 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-13 13:21:26,207 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 13:21:26,207 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:21:26,208 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-13 13:21:26,208 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 13:21:26,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:26,216 INFO L85 PathProgramCache]: Analyzing trace with hash 742933, now seen corresponding path program 1 times [2024-11-13 13:21:26,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:26,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955472815] [2024-11-13 13:21:26,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:26,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:26,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:26,494 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 13:21:26,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:26,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955472815] [2024-11-13 13:21:26,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955472815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:21:26,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:21:26,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:21:26,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447231555] [2024-11-13 13:21:26,500 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:21:26,508 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:21:26,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:26,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:21:26,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:21:26,577 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 59 [2024-11-13 13:21:26,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 54 transitions, 123 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 13:21:26,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:21:26,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 59 [2024-11-13 13:21:26,584 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:21:27,065 INFO L124 PetriNetUnfolderBase]: 433/767 cut-off events. [2024-11-13 13:21:27,066 INFO L125 PetriNetUnfolderBase]: For 47/47 co-relation queries the response was YES. [2024-11-13 13:21:27,069 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1468 conditions, 767 events. 433/767 cut-off events. For 47/47 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3377 event pairs, 306 based on Foata normal form. 4/591 useless extension candidates. Maximal degree in co-relation 1289. Up to 619 conditions per place. [2024-11-13 13:21:27,078 INFO L140 encePairwiseOnDemand]: 45/59 looper letters, 27 selfloop transitions, 10 changer transitions 0/50 dead transitions. [2024-11-13 13:21:27,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 50 transitions, 189 flow [2024-11-13 13:21:27,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:21:27,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 13:21:27,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 105 transitions. [2024-11-13 13:21:27,097 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4449152542372881 [2024-11-13 13:21:27,101 INFO L175 Difference]: Start difference. First operand has 57 places, 54 transitions, 123 flow. Second operand 4 states and 105 transitions. [2024-11-13 13:21:27,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 50 transitions, 189 flow [2024-11-13 13:21:27,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 50 transitions, 180 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-13 13:21:27,116 INFO L231 Difference]: Finished difference. Result has 51 places, 50 transitions, 126 flow [2024-11-13 13:21:27,120 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=126, PETRI_PLACES=51, PETRI_TRANSITIONS=50} [2024-11-13 13:21:27,126 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -6 predicate places. [2024-11-13 13:21:27,126 INFO L471 AbstractCegarLoop]: Abstraction has has 51 places, 50 transitions, 126 flow [2024-11-13 13:21:27,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 13:21:27,127 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:21:27,127 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-13 13:21:27,127 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:21:27,127 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 13:21:27,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:27,128 INFO L85 PathProgramCache]: Analyzing trace with hash 23031650, now seen corresponding path program 1 times [2024-11-13 13:21:27,128 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:27,128 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793308699] [2024-11-13 13:21:27,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:27,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:27,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:27,219 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 13:21:27,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:27,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793308699] [2024-11-13 13:21:27,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793308699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:21:27,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:21:27,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:21:27,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751965637] [2024-11-13 13:21:27,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:21:27,220 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:21:27,221 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:27,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:21:27,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:21:27,251 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 59 [2024-11-13 13:21:27,251 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 50 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 13:21:27,251 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:21:27,252 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 59 [2024-11-13 13:21:27,252 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:21:27,562 INFO L124 PetriNetUnfolderBase]: 437/783 cut-off events. [2024-11-13 13:21:27,562 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-11-13 13:21:27,566 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1488 conditions, 783 events. 437/783 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 59. Compared 3471 event pairs, 306 based on Foata normal form. 4/613 useless extension candidates. Maximal degree in co-relation 1400. Up to 636 conditions per place. [2024-11-13 13:21:27,574 INFO L140 encePairwiseOnDemand]: 42/59 looper letters, 36 selfloop transitions, 13 changer transitions 0/62 dead transitions. [2024-11-13 13:21:27,574 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 62 transitions, 266 flow [2024-11-13 13:21:27,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:21:27,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 13:21:27,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 117 transitions. [2024-11-13 13:21:27,579 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4957627118644068 [2024-11-13 13:21:27,579 INFO L175 Difference]: Start difference. First operand has 51 places, 50 transitions, 126 flow. Second operand 4 states and 117 transitions. [2024-11-13 13:21:27,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 62 transitions, 266 flow [2024-11-13 13:21:27,580 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 62 transitions, 228 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-13 13:21:27,583 INFO L231 Difference]: Finished difference. Result has 54 places, 62 transitions, 214 flow [2024-11-13 13:21:27,583 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=214, PETRI_PLACES=54, PETRI_TRANSITIONS=62} [2024-11-13 13:21:27,585 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2024-11-13 13:21:27,585 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 62 transitions, 214 flow [2024-11-13 13:21:27,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 4 states have internal predecessors, (67), 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 13:21:27,585 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:21:27,585 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-13 13:21:27,586 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:21:27,586 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 13:21:27,587 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:27,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1058134228, now seen corresponding path program 1 times [2024-11-13 13:21:27,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:27,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747313191] [2024-11-13 13:21:27,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:27,589 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:27,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:27,785 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 13:21:27,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:27,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747313191] [2024-11-13 13:21:27,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747313191] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:21:27,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1062409938] [2024-11-13 13:21:27,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:27,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:27,786 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:21:27,789 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:21:27,791 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:21:27,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:27,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 13:21:27,898 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:21:27,956 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 13:21:27,956 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:21:28,037 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 13:21:28,038 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1062409938] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:21:28,038 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:21:28,038 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-13 13:21:28,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172072316] [2024-11-13 13:21:28,038 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:21:28,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-13 13:21:28,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:28,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-13 13:21:28,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-13 13:21:28,127 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 59 [2024-11-13 13:21:28,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 62 transitions, 214 flow. Second operand has 10 states, 10 states have (on average 17.0) internal successors, (170), 10 states have internal predecessors, (170), 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 13:21:28,130 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:21:28,130 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 59 [2024-11-13 13:21:28,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:21:28,654 INFO L124 PetriNetUnfolderBase]: 449/831 cut-off events. [2024-11-13 13:21:28,654 INFO L125 PetriNetUnfolderBase]: For 48/48 co-relation queries the response was YES. [2024-11-13 13:21:28,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1642 conditions, 831 events. 449/831 cut-off events. For 48/48 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 3901 event pairs, 306 based on Foata normal form. 0/651 useless extension candidates. Maximal degree in co-relation 1417. Up to 639 conditions per place. [2024-11-13 13:21:28,661 INFO L140 encePairwiseOnDemand]: 42/59 looper letters, 36 selfloop transitions, 49 changer transitions 0/98 dead transitions. [2024-11-13 13:21:28,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 98 transitions, 546 flow [2024-11-13 13:21:28,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 13:21:28,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 13:21:28,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 257 transitions. [2024-11-13 13:21:28,665 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43559322033898307 [2024-11-13 13:21:28,665 INFO L175 Difference]: Start difference. First operand has 54 places, 62 transitions, 214 flow. Second operand 10 states and 257 transitions. [2024-11-13 13:21:28,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 98 transitions, 546 flow [2024-11-13 13:21:28,670 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 98 transitions, 546 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 13:21:28,672 INFO L231 Difference]: Finished difference. Result has 66 places, 98 transitions, 540 flow [2024-11-13 13:21:28,672 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=540, PETRI_PLACES=66, PETRI_TRANSITIONS=98} [2024-11-13 13:21:28,675 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 9 predicate places. [2024-11-13 13:21:28,675 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 98 transitions, 540 flow [2024-11-13 13:21:28,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 17.0) internal successors, (170), 10 states have internal predecessors, (170), 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 13:21:28,676 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:21:28,676 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:28,693 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 13:21:28,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:28,877 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 13:21:28,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:28,877 INFO L85 PathProgramCache]: Analyzing trace with hash -553050851, now seen corresponding path program 1 times [2024-11-13 13:21:28,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:28,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1672944192] [2024-11-13 13:21:28,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:28,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:28,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:29,065 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 13:21:29,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:29,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1672944192] [2024-11-13 13:21:29,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1672944192] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:21:29,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:21:29,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:21:29,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384871132] [2024-11-13 13:21:29,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:21:29,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:21:29,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:29,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:21:29,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:21:29,078 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 59 [2024-11-13 13:21:29,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 98 transitions, 540 flow. Second operand has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 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 13:21:29,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:21:29,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 59 [2024-11-13 13:21:29,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:21:29,471 INFO L124 PetriNetUnfolderBase]: 883/1510 cut-off events. [2024-11-13 13:21:29,471 INFO L125 PetriNetUnfolderBase]: For 135/135 co-relation queries the response was YES. [2024-11-13 13:21:29,476 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3041 conditions, 1510 events. 883/1510 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 7437 event pairs, 466 based on Foata normal form. 42/1215 useless extension candidates. Maximal degree in co-relation 2917. Up to 1001 conditions per place. [2024-11-13 13:21:29,484 INFO L140 encePairwiseOnDemand]: 53/59 looper letters, 108 selfloop transitions, 4 changer transitions 0/127 dead transitions. [2024-11-13 13:21:29,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 127 transitions, 828 flow [2024-11-13 13:21:29,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:21:29,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 13:21:29,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 154 transitions. [2024-11-13 13:21:29,488 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.652542372881356 [2024-11-13 13:21:29,488 INFO L175 Difference]: Start difference. First operand has 66 places, 98 transitions, 540 flow. Second operand 4 states and 154 transitions. [2024-11-13 13:21:29,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 127 transitions, 828 flow [2024-11-13 13:21:29,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 127 transitions, 702 flow, removed 32 selfloop flow, removed 4 redundant places. [2024-11-13 13:21:29,500 INFO L231 Difference]: Finished difference. Result has 67 places, 101 transitions, 443 flow [2024-11-13 13:21:29,500 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=443, PETRI_PLACES=67, PETRI_TRANSITIONS=101} [2024-11-13 13:21:29,501 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 10 predicate places. [2024-11-13 13:21:29,501 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 101 transitions, 443 flow [2024-11-13 13:21:29,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.25) internal successors, (97), 4 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 13:21:29,501 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:21:29,501 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:29,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:21:29,502 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 13:21:29,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:29,502 INFO L85 PathProgramCache]: Analyzing trace with hash 1065237548, now seen corresponding path program 1 times [2024-11-13 13:21:29,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:29,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555415050] [2024-11-13 13:21:29,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:29,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:29,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:29,680 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 13:21:29,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:29,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555415050] [2024-11-13 13:21:29,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555415050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:21:29,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:21:29,682 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:21:29,682 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687689118] [2024-11-13 13:21:29,682 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:21:29,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:21:29,683 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:29,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:21:29,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:21:29,691 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 59 [2024-11-13 13:21:29,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 101 transitions, 443 flow. Second operand has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 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 13:21:29,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:21:29,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 59 [2024-11-13 13:21:29,692 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:21:30,132 INFO L124 PetriNetUnfolderBase]: 1399/2259 cut-off events. [2024-11-13 13:21:30,132 INFO L125 PetriNetUnfolderBase]: For 901/1022 co-relation queries the response was YES. [2024-11-13 13:21:30,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5292 conditions, 2259 events. 1399/2259 cut-off events. For 901/1022 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 11373 event pairs, 724 based on Foata normal form. 64/1891 useless extension candidates. Maximal degree in co-relation 5183. Up to 1517 conditions per place. [2024-11-13 13:21:30,149 INFO L140 encePairwiseOnDemand]: 53/59 looper letters, 115 selfloop transitions, 4 changer transitions 0/134 dead transitions. [2024-11-13 13:21:30,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 134 transitions, 791 flow [2024-11-13 13:21:30,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:21:30,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 13:21:30,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 152 transitions. [2024-11-13 13:21:30,152 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6440677966101694 [2024-11-13 13:21:30,153 INFO L175 Difference]: Start difference. First operand has 67 places, 101 transitions, 443 flow. Second operand 4 states and 152 transitions. [2024-11-13 13:21:30,153 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 134 transitions, 791 flow [2024-11-13 13:21:30,156 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 134 transitions, 782 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 13:21:30,158 INFO L231 Difference]: Finished difference. Result has 71 places, 104 transitions, 469 flow [2024-11-13 13:21:30,158 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=440, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=469, PETRI_PLACES=71, PETRI_TRANSITIONS=104} [2024-11-13 13:21:30,159 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 14 predicate places. [2024-11-13 13:21:30,159 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 104 transitions, 469 flow [2024-11-13 13:21:30,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 24.75) internal successors, (99), 4 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 13:21:30,159 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:21:30,159 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:30,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 13:21:30,160 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 13:21:30,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:30,160 INFO L85 PathProgramCache]: Analyzing trace with hash -442573351, now seen corresponding path program 1 times [2024-11-13 13:21:30,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:30,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947469382] [2024-11-13 13:21:30,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:30,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:30,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:30,348 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 13:21:30,348 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:30,348 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947469382] [2024-11-13 13:21:30,348 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947469382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:21:30,348 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:21:30,348 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:21:30,349 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814827967] [2024-11-13 13:21:30,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:21:30,349 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:21:30,349 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:30,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:21:30,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:21:30,350 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 59 [2024-11-13 13:21:30,351 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 104 transitions, 469 flow. Second operand has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 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 13:21:30,351 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:21:30,351 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 59 [2024-11-13 13:21:30,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:21:31,004 INFO L124 PetriNetUnfolderBase]: 1552/2827 cut-off events. [2024-11-13 13:21:31,005 INFO L125 PetriNetUnfolderBase]: For 1610/1681 co-relation queries the response was YES. [2024-11-13 13:21:31,014 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7180 conditions, 2827 events. 1552/2827 cut-off events. For 1610/1681 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 15455 event pairs, 952 based on Foata normal form. 62/2513 useless extension candidates. Maximal degree in co-relation 6995. Up to 1496 conditions per place. [2024-11-13 13:21:31,028 INFO L140 encePairwiseOnDemand]: 44/59 looper letters, 110 selfloop transitions, 59 changer transitions 0/186 dead transitions. [2024-11-13 13:21:31,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 186 transitions, 1154 flow [2024-11-13 13:21:31,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:21:31,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 13:21:31,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 236 transitions. [2024-11-13 13:21:31,030 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-11-13 13:21:31,030 INFO L175 Difference]: Start difference. First operand has 71 places, 104 transitions, 469 flow. Second operand 6 states and 236 transitions. [2024-11-13 13:21:31,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 186 transitions, 1154 flow [2024-11-13 13:21:31,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 186 transitions, 1145 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 13:21:31,044 INFO L231 Difference]: Finished difference. Result has 79 places, 144 transitions, 942 flow [2024-11-13 13:21:31,044 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=942, PETRI_PLACES=79, PETRI_TRANSITIONS=144} [2024-11-13 13:21:31,045 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 22 predicate places. [2024-11-13 13:21:31,046 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 144 transitions, 942 flow [2024-11-13 13:21:31,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 26.0) internal successors, (130), 5 states have internal predecessors, (130), 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 13:21:31,046 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:21:31,047 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:31,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 13:21:31,047 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 13:21:31,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:31,047 INFO L85 PathProgramCache]: Analyzing trace with hash 1482396566, now seen corresponding path program 1 times [2024-11-13 13:21:31,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:31,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1872147148] [2024-11-13 13:21:31,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:31,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:31,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:31,216 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 13:21:31,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:31,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1872147148] [2024-11-13 13:21:31,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1872147148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:21:31,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:21:31,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:21:31,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561607958] [2024-11-13 13:21:31,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:21:31,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:21:31,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:31,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:21:31,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:21:31,230 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 59 [2024-11-13 13:21:31,230 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 144 transitions, 942 flow. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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 13:21:31,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:21:31,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 59 [2024-11-13 13:21:31,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:21:31,862 INFO L124 PetriNetUnfolderBase]: 1868/3072 cut-off events. [2024-11-13 13:21:31,862 INFO L125 PetriNetUnfolderBase]: For 2855/3053 co-relation queries the response was YES. [2024-11-13 13:21:31,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8526 conditions, 3072 events. 1868/3072 cut-off events. For 2855/3053 co-relation queries the response was YES. Maximal size of possible extension queue 116. Compared 15223 event pairs, 572 based on Foata normal form. 122/2752 useless extension candidates. Maximal degree in co-relation 8294. Up to 1144 conditions per place. [2024-11-13 13:21:31,891 INFO L140 encePairwiseOnDemand]: 53/59 looper letters, 156 selfloop transitions, 10 changer transitions 0/181 dead transitions. [2024-11-13 13:21:31,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 181 transitions, 1452 flow [2024-11-13 13:21:31,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:21:31,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 13:21:31,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 167 transitions. [2024-11-13 13:21:31,893 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5661016949152542 [2024-11-13 13:21:31,893 INFO L175 Difference]: Start difference. First operand has 79 places, 144 transitions, 942 flow. Second operand 5 states and 167 transitions. [2024-11-13 13:21:31,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 181 transitions, 1452 flow [2024-11-13 13:21:31,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 181 transitions, 1446 flow, removed 3 selfloop flow, removed 0 redundant places. [2024-11-13 13:21:31,951 INFO L231 Difference]: Finished difference. Result has 82 places, 143 transitions, 954 flow [2024-11-13 13:21:31,952 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=934, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=954, PETRI_PLACES=82, PETRI_TRANSITIONS=143} [2024-11-13 13:21:31,952 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 25 predicate places. [2024-11-13 13:21:31,952 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 143 transitions, 954 flow [2024-11-13 13:21:31,956 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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 13:21:31,956 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:21:31,956 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:31,956 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 13:21:31,956 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 13:21:31,957 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:31,957 INFO L85 PathProgramCache]: Analyzing trace with hash -1020769391, now seen corresponding path program 1 times [2024-11-13 13:21:31,957 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:31,957 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020590161] [2024-11-13 13:21:31,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:31,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:31,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:32,168 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-13 13:21:32,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:32,169 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020590161] [2024-11-13 13:21:32,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020590161] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:21:32,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:21:32,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:21:32,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49831664] [2024-11-13 13:21:32,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:21:32,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:21:32,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:32,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:21:32,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:21:32,170 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 59 [2024-11-13 13:21:32,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 143 transitions, 954 flow. Second operand has 6 states, 6 states have (on average 26.0) internal successors, (156), 6 states have internal predecessors, (156), 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 13:21:32,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:21:32,171 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 59 [2024-11-13 13:21:32,171 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:21:32,794 INFO L124 PetriNetUnfolderBase]: 1274/2333 cut-off events. [2024-11-13 13:21:32,795 INFO L125 PetriNetUnfolderBase]: For 2288/2302 co-relation queries the response was YES. [2024-11-13 13:21:32,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6675 conditions, 2333 events. 1274/2333 cut-off events. For 2288/2302 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 12493 event pairs, 824 based on Foata normal form. 34/2131 useless extension candidates. Maximal degree in co-relation 6440. Up to 1496 conditions per place. [2024-11-13 13:21:32,822 INFO L140 encePairwiseOnDemand]: 44/59 looper letters, 93 selfloop transitions, 63 changer transitions 2/174 dead transitions. [2024-11-13 13:21:32,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 174 transitions, 1398 flow [2024-11-13 13:21:32,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 13:21:32,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-13 13:21:32,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 255 transitions. [2024-11-13 13:21:32,828 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6174334140435835 [2024-11-13 13:21:32,828 INFO L175 Difference]: Start difference. First operand has 82 places, 143 transitions, 954 flow. Second operand 7 states and 255 transitions. [2024-11-13 13:21:32,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 174 transitions, 1398 flow [2024-11-13 13:21:32,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 84 places, 174 transitions, 1354 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-13 13:21:32,843 INFO L231 Difference]: Finished difference. Result has 87 places, 149 transitions, 1147 flow [2024-11-13 13:21:32,843 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=934, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=80, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1147, PETRI_PLACES=87, PETRI_TRANSITIONS=149} [2024-11-13 13:21:32,845 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 30 predicate places. [2024-11-13 13:21:32,845 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 149 transitions, 1147 flow [2024-11-13 13:21:32,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.0) internal successors, (156), 6 states have internal predecessors, (156), 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 13:21:32,846 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:21:32,846 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:32,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 13:21:32,847 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 13:21:32,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:32,848 INFO L85 PathProgramCache]: Analyzing trace with hash -1290345909, now seen corresponding path program 1 times [2024-11-13 13:21:32,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:32,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626595909] [2024-11-13 13:21:32,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:32,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:32,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:33,031 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 13:21:33,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:33,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626595909] [2024-11-13 13:21:33,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626595909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:21:33,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:21:33,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:21:33,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502506360] [2024-11-13 13:21:33,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:21:33,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:21:33,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:33,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:21:33,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:21:33,042 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 59 [2024-11-13 13:21:33,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 149 transitions, 1147 flow. Second operand has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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 13:21:33,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:21:33,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 59 [2024-11-13 13:21:33,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:21:33,787 INFO L124 PetriNetUnfolderBase]: 1492/2604 cut-off events. [2024-11-13 13:21:33,788 INFO L125 PetriNetUnfolderBase]: For 3414/3452 co-relation queries the response was YES. [2024-11-13 13:21:33,796 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7548 conditions, 2604 events. 1492/2604 cut-off events. For 3414/3452 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 13489 event pairs, 1016 based on Foata normal form. 0/2264 useless extension candidates. Maximal degree in co-relation 7284. Up to 1793 conditions per place. [2024-11-13 13:21:33,806 INFO L140 encePairwiseOnDemand]: 44/59 looper letters, 72 selfloop transitions, 55 changer transitions 29/171 dead transitions. [2024-11-13 13:21:33,807 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 171 transitions, 1544 flow [2024-11-13 13:21:33,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:21:33,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 13:21:33,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 217 transitions. [2024-11-13 13:21:33,808 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6129943502824858 [2024-11-13 13:21:33,808 INFO L175 Difference]: Start difference. First operand has 87 places, 149 transitions, 1147 flow. Second operand 6 states and 217 transitions. [2024-11-13 13:21:33,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 171 transitions, 1544 flow [2024-11-13 13:21:33,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 171 transitions, 1467 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-13 13:21:33,821 INFO L231 Difference]: Finished difference. Result has 91 places, 139 transitions, 1135 flow [2024-11-13 13:21:33,821 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=1070, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=55, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1135, PETRI_PLACES=91, PETRI_TRANSITIONS=139} [2024-11-13 13:21:33,822 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 34 predicate places. [2024-11-13 13:21:33,822 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 139 transitions, 1135 flow [2024-11-13 13:21:33,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.6) internal successors, (123), 5 states have internal predecessors, (123), 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 13:21:33,822 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:21:33,823 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-13 13:21:33,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 13:21:33,823 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 13:21:33,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:33,824 INFO L85 PathProgramCache]: Analyzing trace with hash 1396868834, now seen corresponding path program 2 times [2024-11-13 13:21:33,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:33,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1877787632] [2024-11-13 13:21:33,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:33,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:33,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:34,024 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 13:21:34,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:34,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1877787632] [2024-11-13 13:21:34,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1877787632] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:21:34,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1190405625] [2024-11-13 13:21:34,025 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 13:21:34,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:34,025 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:21:34,027 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:21:34,030 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:21:34,109 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 13:21:34,110 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:21:34,111 INFO L255 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 13:21:34,112 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:21:34,169 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 13:21:34,170 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:21:34,214 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 13:21:34,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1190405625] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:21:34,214 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:21:34,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-13 13:21:34,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1608650559] [2024-11-13 13:21:34,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:21:34,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 13:21:34,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:34,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 13:21:34,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-13 13:21:34,310 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 59 [2024-11-13 13:21:34,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 139 transitions, 1135 flow. Second operand has 14 states, 14 states have (on average 17.142857142857142) internal successors, (240), 14 states have internal predecessors, (240), 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 13:21:34,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:21:34,311 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 59 [2024-11-13 13:21:34,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:21:35,162 INFO L124 PetriNetUnfolderBase]: 1090/2032 cut-off events. [2024-11-13 13:21:35,162 INFO L125 PetriNetUnfolderBase]: For 2703/2718 co-relation queries the response was YES. [2024-11-13 13:21:35,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5998 conditions, 2032 events. 1090/2032 cut-off events. For 2703/2718 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 11282 event pairs, 724 based on Foata normal form. 8/1891 useless extension candidates. Maximal degree in co-relation 5619. Up to 1485 conditions per place. [2024-11-13 13:21:35,178 INFO L140 encePairwiseOnDemand]: 42/59 looper letters, 46 selfloop transitions, 100 changer transitions 0/158 dead transitions. [2024-11-13 13:21:35,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 158 transitions, 1617 flow [2024-11-13 13:21:35,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-13 13:21:35,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-13 13:21:35,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 484 transitions. [2024-11-13 13:21:35,182 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3418079096045198 [2024-11-13 13:21:35,182 INFO L175 Difference]: Start difference. First operand has 91 places, 139 transitions, 1135 flow. Second operand 24 states and 484 transitions. [2024-11-13 13:21:35,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 158 transitions, 1617 flow [2024-11-13 13:21:35,193 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 158 transitions, 1381 flow, removed 9 selfloop flow, removed 10 redundant places. [2024-11-13 13:21:35,196 INFO L231 Difference]: Finished difference. Result has 101 places, 158 transitions, 1350 flow [2024-11-13 13:21:35,196 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=927, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1350, PETRI_PLACES=101, PETRI_TRANSITIONS=158} [2024-11-13 13:21:35,197 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 44 predicate places. [2024-11-13 13:21:35,197 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 158 transitions, 1350 flow [2024-11-13 13:21:35,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 17.142857142857142) internal successors, (240), 14 states have internal predecessors, (240), 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 13:21:35,197 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:21:35,197 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 1, 1, 1] [2024-11-13 13:21:35,219 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 13:21:35,402 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-13 13:21:35,402 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 13:21:35,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:35,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1823172121, now seen corresponding path program 1 times [2024-11-13 13:21:35,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:35,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176693079] [2024-11-13 13:21:35,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:35,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:35,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:35,569 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:21:35,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:35,570 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176693079] [2024-11-13 13:21:35,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176693079] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:21:35,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:21:35,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:21:35,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773935709] [2024-11-13 13:21:35,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:21:35,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:21:35,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:35,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:21:35,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:21:35,571 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 59 [2024-11-13 13:21:35,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 158 transitions, 1350 flow. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 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 13:21:35,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:21:35,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 59 [2024-11-13 13:21:35,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:21:36,002 INFO L124 PetriNetUnfolderBase]: 1077/1965 cut-off events. [2024-11-13 13:21:36,002 INFO L125 PetriNetUnfolderBase]: For 1230/1244 co-relation queries the response was YES. [2024-11-13 13:21:36,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5056 conditions, 1965 events. 1077/1965 cut-off events. For 1230/1244 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 10902 event pairs, 724 based on Foata normal form. 3/1744 useless extension candidates. Maximal degree in co-relation 4924. Up to 1505 conditions per place. [2024-11-13 13:21:36,017 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 75 selfloop transitions, 20 changer transitions 5/115 dead transitions. [2024-11-13 13:21:36,018 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 115 transitions, 1017 flow [2024-11-13 13:21:36,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:21:36,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 13:21:36,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 145 transitions. [2024-11-13 13:21:36,019 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.614406779661017 [2024-11-13 13:21:36,019 INFO L175 Difference]: Start difference. First operand has 101 places, 158 transitions, 1350 flow. Second operand 4 states and 145 transitions. [2024-11-13 13:21:36,019 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 115 transitions, 1017 flow [2024-11-13 13:21:36,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 115 transitions, 785 flow, removed 51 selfloop flow, removed 13 redundant places. [2024-11-13 13:21:36,028 INFO L231 Difference]: Finished difference. Result has 91 places, 110 transitions, 603 flow [2024-11-13 13:21:36,030 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=585, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=603, PETRI_PLACES=91, PETRI_TRANSITIONS=110} [2024-11-13 13:21:36,030 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 34 predicate places. [2024-11-13 13:21:36,031 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 110 transitions, 603 flow [2024-11-13 13:21:36,031 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 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 13:21:36,031 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:21:36,031 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:36,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 13:21:36,031 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 13:21:36,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:36,033 INFO L85 PathProgramCache]: Analyzing trace with hash -1969324623, now seen corresponding path program 1 times [2024-11-13 13:21:36,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:36,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566756387] [2024-11-13 13:21:36,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:36,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:36,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:36,262 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 18 proven. 2 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 13:21:36,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:36,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566756387] [2024-11-13 13:21:36,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566756387] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:21:36,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489418539] [2024-11-13 13:21:36,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:36,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:36,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:21:36,267 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:21:36,269 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 13:21:36,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:36,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-13 13:21:36,377 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:21:36,529 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 13:21:36,529 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:21:36,685 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 19 proven. 1 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 13:21:36,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489418539] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:21:36,685 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:21:36,685 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2024-11-13 13:21:36,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306049296] [2024-11-13 13:21:36,686 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:21:36,686 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-13 13:21:36,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:36,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-13 13:21:36,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2024-11-13 13:21:36,879 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 59 [2024-11-13 13:21:36,879 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 110 transitions, 603 flow. Second operand has 19 states, 19 states have (on average 17.210526315789473) internal successors, (327), 19 states have internal predecessors, (327), 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 13:21:36,880 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:21:36,880 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 59 [2024-11-13 13:21:36,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:21:37,891 INFO L124 PetriNetUnfolderBase]: 2129/3791 cut-off events. [2024-11-13 13:21:37,892 INFO L125 PetriNetUnfolderBase]: For 2139/2234 co-relation queries the response was YES. [2024-11-13 13:21:37,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9517 conditions, 3791 events. 2129/3791 cut-off events. For 2139/2234 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 21243 event pairs, 1448 based on Foata normal form. 3/3364 useless extension candidates. Maximal degree in co-relation 9406. Up to 1480 conditions per place. [2024-11-13 13:21:37,918 INFO L140 encePairwiseOnDemand]: 46/59 looper letters, 63 selfloop transitions, 70 changer transitions 0/145 dead transitions. [2024-11-13 13:21:37,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 145 transitions, 1033 flow [2024-11-13 13:21:37,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 13:21:37,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 13:21:37,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 248 transitions. [2024-11-13 13:21:37,921 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42033898305084744 [2024-11-13 13:21:37,921 INFO L175 Difference]: Start difference. First operand has 91 places, 110 transitions, 603 flow. Second operand 10 states and 248 transitions. [2024-11-13 13:21:37,921 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 145 transitions, 1033 flow [2024-11-13 13:21:37,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 145 transitions, 896 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-13 13:21:37,928 INFO L231 Difference]: Finished difference. Result has 93 places, 119 transitions, 692 flow [2024-11-13 13:21:37,928 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=497, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=692, PETRI_PLACES=93, PETRI_TRANSITIONS=119} [2024-11-13 13:21:37,929 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 36 predicate places. [2024-11-13 13:21:37,929 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 119 transitions, 692 flow [2024-11-13 13:21:37,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 17.210526315789473) internal successors, (327), 19 states have internal predecessors, (327), 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 13:21:37,929 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:21:37,930 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:37,953 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 13:21:38,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-13 13:21:38,131 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 13:21:38,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:38,131 INFO L85 PathProgramCache]: Analyzing trace with hash 919974372, now seen corresponding path program 1 times [2024-11-13 13:21:38,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:38,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146888747] [2024-11-13 13:21:38,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:38,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:38,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:38,298 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 13:21:38,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:38,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146888747] [2024-11-13 13:21:38,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146888747] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:21:38,299 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1882020708] [2024-11-13 13:21:38,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:38,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:38,299 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:21:38,302 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:21:38,303 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 13:21:38,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:38,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 13:21:38,445 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:21:38,477 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 13:21:38,478 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:21:38,478 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1882020708] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:21:38,478 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:21:38,478 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-13 13:21:38,478 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760005669] [2024-11-13 13:21:38,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:21:38,478 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 13:21:38,479 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:38,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 13:21:38,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:21:38,488 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 59 [2024-11-13 13:21:38,489 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 119 transitions, 692 flow. Second operand has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 6 states have internal predecessors, (151), 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 13:21:38,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:21:38,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 59 [2024-11-13 13:21:38,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:21:39,377 INFO L124 PetriNetUnfolderBase]: 2441/3970 cut-off events. [2024-11-13 13:21:39,377 INFO L125 PetriNetUnfolderBase]: For 1855/1975 co-relation queries the response was YES. [2024-11-13 13:21:39,398 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10222 conditions, 3970 events. 2441/3970 cut-off events. For 1855/1975 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 20240 event pairs, 408 based on Foata normal form. 124/3504 useless extension candidates. Maximal degree in co-relation 10107. Up to 1121 conditions per place. [2024-11-13 13:21:39,419 INFO L140 encePairwiseOnDemand]: 54/59 looper letters, 162 selfloop transitions, 7 changer transitions 0/182 dead transitions. [2024-11-13 13:21:39,420 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 182 transitions, 1230 flow [2024-11-13 13:21:39,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 13:21:39,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 13:21:39,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 222 transitions. [2024-11-13 13:21:39,422 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6271186440677966 [2024-11-13 13:21:39,422 INFO L175 Difference]: Start difference. First operand has 93 places, 119 transitions, 692 flow. Second operand 6 states and 222 transitions. [2024-11-13 13:21:39,422 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 182 transitions, 1230 flow [2024-11-13 13:21:39,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 182 transitions, 1230 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 13:21:39,435 INFO L231 Difference]: Finished difference. Result has 97 places, 118 transitions, 702 flow [2024-11-13 13:21:39,435 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=688, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=702, PETRI_PLACES=97, PETRI_TRANSITIONS=118} [2024-11-13 13:21:39,438 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 40 predicate places. [2024-11-13 13:21:39,438 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 118 transitions, 702 flow [2024-11-13 13:21:39,439 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.166666666666668) internal successors, (151), 6 states have internal predecessors, (151), 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 13:21:39,439 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:21:39,439 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:39,461 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 13:21:39,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:39,640 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 13:21:39,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:39,640 INFO L85 PathProgramCache]: Analyzing trace with hash -1545564753, now seen corresponding path program 1 times [2024-11-13 13:21:39,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:39,641 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834274084] [2024-11-13 13:21:39,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:39,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:39,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:39,837 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 13:21:39,837 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:39,837 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834274084] [2024-11-13 13:21:39,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834274084] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:21:39,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921778238] [2024-11-13 13:21:39,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:39,838 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:39,838 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:21:39,840 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:21:39,844 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 13:21:39,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:39,987 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 13:21:39,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:21:40,026 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 13:21:40,026 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:21:40,085 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 13:21:40,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1921778238] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:21:40,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:21:40,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-13 13:21:40,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334959023] [2024-11-13 13:21:40,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:21:40,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 13:21:40,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:40,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 13:21:40,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-13 13:21:40,109 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 59 [2024-11-13 13:21:40,110 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 118 transitions, 702 flow. Second operand has 12 states, 12 states have (on average 24.25) internal successors, (291), 12 states have internal predecessors, (291), 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 13:21:40,110 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:21:40,110 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 59 [2024-11-13 13:21:40,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:21:41,374 INFO L124 PetriNetUnfolderBase]: 4685/7374 cut-off events. [2024-11-13 13:21:41,374 INFO L125 PetriNetUnfolderBase]: For 5377/5697 co-relation queries the response was YES. [2024-11-13 13:21:41,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20831 conditions, 7374 events. 4685/7374 cut-off events. For 5377/5697 co-relation queries the response was YES. Maximal size of possible extension queue 168. Compared 38371 event pairs, 1200 based on Foata normal form. 372/6638 useless extension candidates. Maximal degree in co-relation 20715. Up to 2925 conditions per place. [2024-11-13 13:21:41,428 INFO L140 encePairwiseOnDemand]: 54/59 looper letters, 229 selfloop transitions, 13 changer transitions 0/255 dead transitions. [2024-11-13 13:21:41,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 255 transitions, 1648 flow [2024-11-13 13:21:41,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 13:21:41,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 13:21:41,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 373 transitions. [2024-11-13 13:21:41,431 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6322033898305085 [2024-11-13 13:21:41,431 INFO L175 Difference]: Start difference. First operand has 97 places, 118 transitions, 702 flow. Second operand 10 states and 373 transitions. [2024-11-13 13:21:41,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 255 transitions, 1648 flow [2024-11-13 13:21:41,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 255 transitions, 1602 flow, removed 8 selfloop flow, removed 5 redundant places. [2024-11-13 13:21:41,450 INFO L231 Difference]: Finished difference. Result has 104 places, 127 transitions, 754 flow [2024-11-13 13:21:41,451 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=680, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=754, PETRI_PLACES=104, PETRI_TRANSITIONS=127} [2024-11-13 13:21:41,451 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 47 predicate places. [2024-11-13 13:21:41,451 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 127 transitions, 754 flow [2024-11-13 13:21:41,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 24.25) internal successors, (291), 12 states have internal predecessors, (291), 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 13:21:41,452 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:21:41,452 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 5, 2, 2, 2, 1, 1, 1] [2024-11-13 13:21:41,475 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 13:21:41,652 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-13 13:21:41,652 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 13:21:41,653 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:41,653 INFO L85 PathProgramCache]: Analyzing trace with hash -901673561, now seen corresponding path program 2 times [2024-11-13 13:21:41,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:41,653 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903339617] [2024-11-13 13:21:41,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:41,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:41,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:42,195 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 32 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:21:42,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:42,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903339617] [2024-11-13 13:21:42,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903339617] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:21:42,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261103184] [2024-11-13 13:21:42,195 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 13:21:42,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:42,196 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:21:42,198 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:21:42,200 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 13:21:42,297 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 13:21:42,297 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:21:42,298 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 13:21:42,300 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:21:42,425 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:21:42,425 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:21:42,527 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-13 13:21:42,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261103184] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:21:42,527 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:21:42,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 3, 3] total 20 [2024-11-13 13:21:42,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848671378] [2024-11-13 13:21:42,528 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:21:42,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-13 13:21:42,528 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:42,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-13 13:21:42,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2024-11-13 13:21:42,880 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 59 [2024-11-13 13:21:42,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 127 transitions, 754 flow. Second operand has 21 states, 21 states have (on average 17.238095238095237) internal successors, (362), 21 states have internal predecessors, (362), 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 13:21:42,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:21:42,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 59 [2024-11-13 13:21:42,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:21:44,378 INFO L124 PetriNetUnfolderBase]: 4376/7281 cut-off events. [2024-11-13 13:21:44,379 INFO L125 PetriNetUnfolderBase]: For 7677/7837 co-relation queries the response was YES. [2024-11-13 13:21:44,403 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20200 conditions, 7281 events. 4376/7281 cut-off events. For 7677/7837 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 41080 event pairs, 2936 based on Foata normal form. 6/6569 useless extension candidates. Maximal degree in co-relation 20100. Up to 5906 conditions per place. [2024-11-13 13:21:44,433 INFO L140 encePairwiseOnDemand]: 43/59 looper letters, 35 selfloop transitions, 96 changer transitions 0/142 dead transitions. [2024-11-13 13:21:44,434 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 142 transitions, 1100 flow [2024-11-13 13:21:44,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-13 13:21:44,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-13 13:21:44,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 402 transitions. [2024-11-13 13:21:44,438 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3586083853702052 [2024-11-13 13:21:44,438 INFO L175 Difference]: Start difference. First operand has 104 places, 127 transitions, 754 flow. Second operand 19 states and 402 transitions. [2024-11-13 13:21:44,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 142 transitions, 1100 flow [2024-11-13 13:21:44,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 142 transitions, 1033 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-11-13 13:21:44,462 INFO L231 Difference]: Finished difference. Result has 113 places, 142 transitions, 963 flow [2024-11-13 13:21:44,462 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=663, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=963, PETRI_PLACES=113, PETRI_TRANSITIONS=142} [2024-11-13 13:21:44,464 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 56 predicate places. [2024-11-13 13:21:44,464 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 142 transitions, 963 flow [2024-11-13 13:21:44,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 17.238095238095237) internal successors, (362), 21 states have internal predecessors, (362), 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 13:21:44,464 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:21:44,465 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:44,488 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 13:21:44,669 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-13 13:21:44,669 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 13:21:44,670 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:44,670 INFO L85 PathProgramCache]: Analyzing trace with hash -1577432868, now seen corresponding path program 1 times [2024-11-13 13:21:44,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:44,671 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320928861] [2024-11-13 13:21:44,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:44,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:44,846 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 13:21:44,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:44,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320928861] [2024-11-13 13:21:44,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320928861] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:21:44,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954557826] [2024-11-13 13:21:44,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:44,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:44,847 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:21:44,849 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:21:44,852 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 13:21:45,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:45,011 INFO L255 TraceCheckSpWp]: Trace formula consists of 241 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-13 13:21:45,013 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:21:45,242 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 13:21:45,242 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:21:45,468 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 13:21:45,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954557826] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:21:45,468 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:21:45,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 21 [2024-11-13 13:21:45,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895053233] [2024-11-13 13:21:45,469 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:21:45,469 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-13 13:21:45,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:45,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-13 13:21:45,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2024-11-13 13:21:45,673 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 59 [2024-11-13 13:21:45,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 142 transitions, 963 flow. Second operand has 21 states, 21 states have (on average 16.571428571428573) internal successors, (348), 21 states have internal predecessors, (348), 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 13:21:45,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:21:45,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 59 [2024-11-13 13:21:45,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:21:47,642 INFO L124 PetriNetUnfolderBase]: 4468/6927 cut-off events. [2024-11-13 13:21:47,642 INFO L125 PetriNetUnfolderBase]: For 5006/5076 co-relation queries the response was YES. [2024-11-13 13:21:47,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19051 conditions, 6927 events. 4468/6927 cut-off events. For 5006/5076 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 35616 event pairs, 848 based on Foata normal form. 124/6334 useless extension candidates. Maximal degree in co-relation 18942. Up to 1073 conditions per place. [2024-11-13 13:21:47,688 INFO L140 encePairwiseOnDemand]: 41/59 looper letters, 262 selfloop transitions, 96 changer transitions 0/367 dead transitions. [2024-11-13 13:21:47,688 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 367 transitions, 2593 flow [2024-11-13 13:21:47,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-13 13:21:47,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-13 13:21:47,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 438 transitions. [2024-11-13 13:21:47,690 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4124293785310734 [2024-11-13 13:21:47,690 INFO L175 Difference]: Start difference. First operand has 113 places, 142 transitions, 963 flow. Second operand 18 states and 438 transitions. [2024-11-13 13:21:47,690 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 367 transitions, 2593 flow [2024-11-13 13:21:47,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 367 transitions, 2401 flow, removed 6 selfloop flow, removed 11 redundant places. [2024-11-13 13:21:47,721 INFO L231 Difference]: Finished difference. Result has 118 places, 146 transitions, 981 flow [2024-11-13 13:21:47,722 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=767, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=981, PETRI_PLACES=118, PETRI_TRANSITIONS=146} [2024-11-13 13:21:47,723 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 61 predicate places. [2024-11-13 13:21:47,724 INFO L471 AbstractCegarLoop]: Abstraction has has 118 places, 146 transitions, 981 flow [2024-11-13 13:21:47,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 16.571428571428573) internal successors, (348), 21 states have internal predecessors, (348), 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 13:21:47,725 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:21:47,725 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, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:47,749 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 13:21:47,926 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-13 13:21:47,926 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 13:21:47,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:47,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1847009386, now seen corresponding path program 1 times [2024-11-13 13:21:47,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:47,927 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646174701] [2024-11-13 13:21:47,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:47,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:47,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:48,107 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 13:21:48,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:48,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646174701] [2024-11-13 13:21:48,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646174701] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:21:48,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1694430296] [2024-11-13 13:21:48,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:48,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:48,108 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:21:48,111 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:21:48,113 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 13:21:48,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:48,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 249 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 13:21:48,254 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:21:48,492 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 13:21:48,492 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:21:48,690 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 13:21:48,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1694430296] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:21:48,691 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:21:48,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 18 [2024-11-13 13:21:48,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065874051] [2024-11-13 13:21:48,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:21:48,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-13 13:21:48,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:48,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-13 13:21:48,692 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2024-11-13 13:21:48,912 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 59 [2024-11-13 13:21:48,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 146 transitions, 981 flow. Second operand has 20 states, 20 states have (on average 16.75) internal successors, (335), 20 states have internal predecessors, (335), 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 13:21:48,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:21:48,913 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 59 [2024-11-13 13:21:48,913 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:21:50,344 INFO L124 PetriNetUnfolderBase]: 4801/7466 cut-off events. [2024-11-13 13:21:50,344 INFO L125 PetriNetUnfolderBase]: For 9721/9813 co-relation queries the response was YES. [2024-11-13 13:21:50,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22015 conditions, 7466 events. 4801/7466 cut-off events. For 9721/9813 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 38963 event pairs, 1990 based on Foata normal form. 0/6685 useless extension candidates. Maximal degree in co-relation 21908. Up to 2629 conditions per place. [2024-11-13 13:21:50,382 INFO L140 encePairwiseOnDemand]: 41/59 looper letters, 176 selfloop transitions, 66 changer transitions 24/275 dead transitions. [2024-11-13 13:21:50,382 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 275 transitions, 2124 flow [2024-11-13 13:21:50,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 13:21:50,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-13 13:21:50,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 340 transitions. [2024-11-13 13:21:50,384 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.384180790960452 [2024-11-13 13:21:50,384 INFO L175 Difference]: Start difference. First operand has 118 places, 146 transitions, 981 flow. Second operand 15 states and 340 transitions. [2024-11-13 13:21:50,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 275 transitions, 2124 flow [2024-11-13 13:21:50,409 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 275 transitions, 1911 flow, removed 9 selfloop flow, removed 11 redundant places. [2024-11-13 13:21:50,412 INFO L231 Difference]: Finished difference. Result has 120 places, 150 transitions, 977 flow [2024-11-13 13:21:50,412 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=834, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=977, PETRI_PLACES=120, PETRI_TRANSITIONS=150} [2024-11-13 13:21:50,413 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 63 predicate places. [2024-11-13 13:21:50,413 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 150 transitions, 977 flow [2024-11-13 13:21:50,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 16.75) internal successors, (335), 20 states have internal predecessors, (335), 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 13:21:50,414 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:21:50,414 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:50,432 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 13:21:50,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-13 13:21:50,618 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 13:21:50,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:50,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1627021599, now seen corresponding path program 2 times [2024-11-13 13:21:50,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:50,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1752025995] [2024-11-13 13:21:50,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:50,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:50,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:50,892 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-13 13:21:50,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:50,892 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1752025995] [2024-11-13 13:21:50,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1752025995] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:21:50,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275156053] [2024-11-13 13:21:50,893 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 13:21:50,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:50,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:21:50,896 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:21:50,899 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 13:21:51,027 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 13:21:51,027 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:21:51,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 13:21:51,030 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:21:51,098 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 13:21:51,098 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:21:51,167 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-13 13:21:51,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275156053] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:21:51,167 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:21:51,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 2, 2] total 10 [2024-11-13 13:21:51,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657729075] [2024-11-13 13:21:51,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:21:51,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 13:21:51,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:51,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 13:21:51,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-13 13:21:51,303 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 59 [2024-11-13 13:21:51,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 150 transitions, 977 flow. Second operand has 11 states, 11 states have (on average 25.636363636363637) internal successors, (282), 11 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:51,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:21:51,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 59 [2024-11-13 13:21:51,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:21:52,200 INFO L124 PetriNetUnfolderBase]: 3723/5861 cut-off events. [2024-11-13 13:21:52,201 INFO L125 PetriNetUnfolderBase]: For 5157/5205 co-relation queries the response was YES. [2024-11-13 13:21:52,212 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16313 conditions, 5861 events. 3723/5861 cut-off events. For 5157/5205 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 29300 event pairs, 1396 based on Foata normal form. 138/5357 useless extension candidates. Maximal degree in co-relation 16211. Up to 2636 conditions per place. [2024-11-13 13:21:52,221 INFO L140 encePairwiseOnDemand]: 41/59 looper letters, 84 selfloop transitions, 46 changer transitions 83/221 dead transitions. [2024-11-13 13:21:52,221 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 221 transitions, 1631 flow [2024-11-13 13:21:52,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 13:21:52,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-13 13:21:52,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 443 transitions. [2024-11-13 13:21:52,223 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5363196125907991 [2024-11-13 13:21:52,223 INFO L175 Difference]: Start difference. First operand has 120 places, 150 transitions, 977 flow. Second operand 14 states and 443 transitions. [2024-11-13 13:21:52,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 221 transitions, 1631 flow [2024-11-13 13:21:52,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 221 transitions, 1513 flow, removed 1 selfloop flow, removed 12 redundant places. [2024-11-13 13:21:52,303 INFO L231 Difference]: Finished difference. Result has 122 places, 122 transitions, 803 flow [2024-11-13 13:21:52,304 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=851, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=803, PETRI_PLACES=122, PETRI_TRANSITIONS=122} [2024-11-13 13:21:52,304 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 65 predicate places. [2024-11-13 13:21:52,304 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 122 transitions, 803 flow [2024-11-13 13:21:52,304 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 25.636363636363637) internal successors, (282), 11 states have internal predecessors, (282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:52,305 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:21:52,305 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:52,325 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-13 13:21:52,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-13 13:21:52,505 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 13:21:52,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:52,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1029504183, now seen corresponding path program 1 times [2024-11-13 13:21:52,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:52,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703201990] [2024-11-13 13:21:52,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:52,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:52,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:52,632 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-13 13:21:52,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:52,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703201990] [2024-11-13 13:21:52,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703201990] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:21:52,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144489798] [2024-11-13 13:21:52,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:52,633 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:52,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:21:52,635 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:21:52,637 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 13:21:52,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:52,785 INFO L255 TraceCheckSpWp]: Trace formula consists of 286 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 13:21:52,787 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:21:52,817 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-13 13:21:52,818 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:21:52,860 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-13 13:21:52,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144489798] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:21:52,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:21:52,862 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-13 13:21:52,862 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194257148] [2024-11-13 13:21:52,862 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:21:52,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 13:21:52,863 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:52,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 13:21:52,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-13 13:21:52,881 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 59 [2024-11-13 13:21:52,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 122 transitions, 803 flow. Second operand has 12 states, 12 states have (on average 24.416666666666668) internal successors, (293), 12 states have internal predecessors, (293), 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 13:21:52,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:21:52,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 59 [2024-11-13 13:21:52,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:21:53,874 INFO L124 PetriNetUnfolderBase]: 5221/7995 cut-off events. [2024-11-13 13:21:53,874 INFO L125 PetriNetUnfolderBase]: For 11055/11055 co-relation queries the response was YES. [2024-11-13 13:21:53,904 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23753 conditions, 7995 events. 5221/7995 cut-off events. For 11055/11055 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 42649 event pairs, 1083 based on Foata normal form. 447/7841 useless extension candidates. Maximal degree in co-relation 23652. Up to 2458 conditions per place. [2024-11-13 13:21:53,923 INFO L140 encePairwiseOnDemand]: 55/59 looper letters, 320 selfloop transitions, 9 changer transitions 0/336 dead transitions. [2024-11-13 13:21:53,923 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 336 transitions, 2525 flow [2024-11-13 13:21:53,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 13:21:53,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 13:21:53,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 359 transitions. [2024-11-13 13:21:53,925 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6084745762711864 [2024-11-13 13:21:53,925 INFO L175 Difference]: Start difference. First operand has 122 places, 122 transitions, 803 flow. Second operand 10 states and 359 transitions. [2024-11-13 13:21:53,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 336 transitions, 2525 flow [2024-11-13 13:21:53,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 336 transitions, 2137 flow, removed 27 selfloop flow, removed 11 redundant places. [2024-11-13 13:21:53,944 INFO L231 Difference]: Finished difference. Result has 103 places, 128 transitions, 705 flow [2024-11-13 13:21:53,944 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=647, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=705, PETRI_PLACES=103, PETRI_TRANSITIONS=128} [2024-11-13 13:21:53,945 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 46 predicate places. [2024-11-13 13:21:53,945 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 128 transitions, 705 flow [2024-11-13 13:21:53,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 24.416666666666668) internal successors, (293), 12 states have internal predecessors, (293), 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 13:21:53,945 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 13:21:53,945 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:53,968 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-13 13:21:54,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:54,146 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-13 13:21:54,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:54,146 INFO L85 PathProgramCache]: Analyzing trace with hash -485518578, now seen corresponding path program 2 times [2024-11-13 13:21:54,146 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:54,146 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925867654] [2024-11-13 13:21:54,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:54,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:54,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:54,416 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-13 13:21:54,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:54,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925867654] [2024-11-13 13:21:54,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925867654] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:21:54,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500231673] [2024-11-13 13:21:54,417 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 13:21:54,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:54,417 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:21:54,419 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:21:54,422 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-13 13:21:54,547 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 13:21:54,548 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 13:21:54,549 INFO L255 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 13:21:54,552 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:21:54,715 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-13 13:21:54,715 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:21:54,810 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2024-11-13 13:21:54,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500231673] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:21:54,810 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:21:54,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 3, 3] total 12 [2024-11-13 13:21:54,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1798401751] [2024-11-13 13:21:54,810 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:21:54,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-13 13:21:54,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:54,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-13 13:21:54,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-13 13:21:55,021 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 59 [2024-11-13 13:21:55,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 128 transitions, 705 flow. Second operand has 14 states, 14 states have (on average 25.714285714285715) internal successors, (360), 14 states have internal predecessors, (360), 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 13:21:55,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 13:21:55,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 59 [2024-11-13 13:21:55,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 13:21:56,771 INFO L124 PetriNetUnfolderBase]: 9563/14956 cut-off events. [2024-11-13 13:21:56,771 INFO L125 PetriNetUnfolderBase]: For 19873/19873 co-relation queries the response was YES. [2024-11-13 13:21:56,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43097 conditions, 14956 events. 9563/14956 cut-off events. For 19873/19873 co-relation queries the response was YES. Maximal size of possible extension queue 279. Compared 87503 event pairs, 3600 based on Foata normal form. 298/12804 useless extension candidates. Maximal degree in co-relation 43005. Up to 3540 conditions per place. [2024-11-13 13:21:56,812 INFO L140 encePairwiseOnDemand]: 43/59 looper letters, 0 selfloop transitions, 0 changer transitions 219/219 dead transitions. [2024-11-13 13:21:56,812 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 219 transitions, 1500 flow [2024-11-13 13:21:56,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-13 13:21:56,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2024-11-13 13:21:56,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 492 transitions. [2024-11-13 13:21:56,814 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4905284147557328 [2024-11-13 13:21:56,814 INFO L175 Difference]: Start difference. First operand has 103 places, 128 transitions, 705 flow. Second operand 17 states and 492 transitions. [2024-11-13 13:21:56,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 219 transitions, 1500 flow [2024-11-13 13:21:56,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 219 transitions, 1460 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-13 13:21:56,856 INFO L231 Difference]: Finished difference. Result has 112 places, 0 transitions, 0 flow [2024-11-13 13:21:56,856 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=675, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=0, PETRI_PLACES=112, PETRI_TRANSITIONS=0} [2024-11-13 13:21:56,856 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 55 predicate places. [2024-11-13 13:21:56,856 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 0 transitions, 0 flow [2024-11-13 13:21:56,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 25.714285714285715) internal successors, (360), 14 states have internal predecessors, (360), 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 13:21:56,860 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 23 remaining) [2024-11-13 13:21:56,860 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 23 remaining) [2024-11-13 13:21:56,860 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 23 remaining) [2024-11-13 13:21:56,860 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 23 remaining) [2024-11-13 13:21:56,860 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 23 remaining) [2024-11-13 13:21:56,860 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 23 remaining) [2024-11-13 13:21:56,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 23 remaining) [2024-11-13 13:21:56,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 23 remaining) [2024-11-13 13:21:56,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 23 remaining) [2024-11-13 13:21:56,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 23 remaining) [2024-11-13 13:21:56,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 23 remaining) [2024-11-13 13:21:56,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 23 remaining) [2024-11-13 13:21:56,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 23 remaining) [2024-11-13 13:21:56,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 23 remaining) [2024-11-13 13:21:56,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 23 remaining) [2024-11-13 13:21:56,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 23 remaining) [2024-11-13 13:21:56,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 23 remaining) [2024-11-13 13:21:56,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 23 remaining) [2024-11-13 13:21:56,861 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 23 remaining) [2024-11-13 13:21:56,862 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 23 remaining) [2024-11-13 13:21:56,862 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 23 remaining) [2024-11-13 13:21:56,862 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 23 remaining) [2024-11-13 13:21:56,862 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 23 remaining) [2024-11-13 13:21:56,880 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-13 13:21:57,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:57,063 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:57,068 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 13:21:57,068 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:21:57,073 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:21:57 BasicIcfg [2024-11-13 13:21:57,074 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:21:57,074 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:21:57,074 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:21:57,074 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:21:57,075 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:21:25" (3/4) ... [2024-11-13 13:21:57,077 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 13:21:57,081 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-13 13:21:57,081 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-13 13:21:57,081 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-13 13:21:57,089 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 195 nodes and edges [2024-11-13 13:21:57,090 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-11-13 13:21:57,091 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-13 13:21:57,091 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-13 13:21:57,191 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 13:21:57,192 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 13:21:57,192 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:21:57,193 INFO L158 Benchmark]: Toolchain (without parser) took 33014.02ms. Allocated memory was 117.4MB in the beginning and 805.3MB in the end (delta: 687.9MB). Free memory was 92.7MB in the beginning and 542.6MB in the end (delta: -449.9MB). Peak memory consumption was 236.9MB. Max. memory is 16.1GB. [2024-11-13 13:21:57,193 INFO L158 Benchmark]: CDTParser took 0.44ms. Allocated memory is still 117.4MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:21:57,194 INFO L158 Benchmark]: CACSL2BoogieTranslator took 367.55ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 80.6MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:21:57,194 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.21ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 78.7MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 13:21:57,194 INFO L158 Benchmark]: Boogie Preprocessor took 73.04ms. Allocated memory is still 117.4MB. Free memory was 78.7MB in the beginning and 76.4MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:21:57,195 INFO L158 Benchmark]: RCFGBuilder took 1279.27ms. Allocated memory is still 117.4MB. Free memory was 76.4MB in the beginning and 64.4MB in the end (delta: 12.0MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. [2024-11-13 13:21:57,195 INFO L158 Benchmark]: TraceAbstraction took 31117.54ms. Allocated memory was 117.4MB in the beginning and 805.3MB in the end (delta: 687.9MB). Free memory was 63.9MB in the beginning and 546.9MB in the end (delta: -483.0MB). Peak memory consumption was 432.8MB. Max. memory is 16.1GB. [2024-11-13 13:21:57,195 INFO L158 Benchmark]: Witness Printer took 118.11ms. Allocated memory is still 805.3MB. Free memory was 546.9MB in the beginning and 542.6MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:21:57,199 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44ms. Allocated memory is still 117.4MB. Free memory is still 74.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 367.55ms. Allocated memory is still 117.4MB. Free memory was 92.7MB in the beginning and 80.6MB in the end (delta: 12.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.21ms. Allocated memory is still 117.4MB. Free memory was 80.6MB in the beginning and 78.7MB in the end (delta: 1.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.04ms. Allocated memory is still 117.4MB. Free memory was 78.7MB in the beginning and 76.4MB in the end (delta: 2.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 1279.27ms. Allocated memory is still 117.4MB. Free memory was 76.4MB in the beginning and 64.4MB in the end (delta: 12.0MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. * TraceAbstraction took 31117.54ms. Allocated memory was 117.4MB in the beginning and 805.3MB in the end (delta: 687.9MB). Free memory was 63.9MB in the beginning and 546.9MB in the end (delta: -483.0MB). Peak memory consumption was 432.8MB. Max. memory is 16.1GB. * Witness Printer took 118.11ms. Allocated memory is still 805.3MB. Free memory was 546.9MB in the beginning and 542.6MB in the end (delta: 4.3MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 77 locations, 23 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 31.0s, OverallIterations: 20, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 20.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2692 SdHoareTripleChecker+Valid, 7.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2524 mSDsluCounter, 3091 SdHoareTripleChecker+Invalid, 6.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3054 mSDsCounter, 674 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7977 IncrementalHoareTripleChecker+Invalid, 8651 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 674 mSolverCounterUnsat, 37 mSDtfsCounter, 7977 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 762 GetRequests, 483 SyntacticMatches, 6 SemanticMatches, 273 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1157 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1350occurred in iteration=10, InterpolantAutomatonStates: 197, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 5.8s InterpolantComputationTime, 688 NumberOfCodeBlocks, 595 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 917 ConstructedInterpolants, 0 QuantifiedInterpolants, 2571 SizeOfPredicates, 46 NumberOfNonLiveVariables, 1976 ConjunctsInSsa, 74 ConjunctsInUnsatCore, 41 InterpolantComputations, 10 PerfectInterpolantSequences, 649/820 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-13 13:21:57,232 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_935172f8-a9ee-40f7-83d1-7d39dc9b032b/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE