./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.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_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/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_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/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_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/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 b034d85232772d264d33ccb960d3ce3e7bf57df858fd0c6fd0b22127388c3f9a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:57:45,193 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:57:45,316 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 15:57:45,329 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:57:45,332 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:57:45,374 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:57:45,377 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:57:45,377 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:57:45,378 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:57:45,378 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:57:45,379 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:57:45,380 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:57:45,380 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:57:45,380 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:57:45,380 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:57:45,381 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:57:45,381 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:57:45,381 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:57:45,381 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:57:45,381 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:57:45,381 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:57:45,381 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:57:45,381 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:57:45,382 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:57:45,382 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:57:45,382 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 15:57:45,383 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 15:57:45,383 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:57:45,383 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:57:45,383 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:57:45,383 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:57:45,384 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:57:45,384 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:57:45,384 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:57:45,385 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:57:45,385 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:57:45,385 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:57:45,385 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:57:45,386 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:57:45,386 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:57:45,386 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:57:45,386 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:57:45,386 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:57:45,386 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:57:45,386 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_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/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 -> b034d85232772d264d33ccb960d3ce3e7bf57df858fd0c6fd0b22127388c3f9a [2024-11-13 15:57:45,774 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:57:45,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:57:45,791 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:57:45,792 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:57:45,793 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:57:45,796 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c Unable to find full path for "g++" [2024-11-13 15:57:48,055 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:57:48,460 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:57:48,461 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/sv-benchmarks/c/weaver/chl-chromosome-opt-symm.wvr.c [2024-11-13 15:57:48,479 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/data/ef6f3e9e6/6a58213ab237483da0e8635fb3f721e3/FLAGd2da75b25 [2024-11-13 15:57:48,509 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/data/ef6f3e9e6/6a58213ab237483da0e8635fb3f721e3 [2024-11-13 15:57:48,512 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:57:48,514 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:57:48,518 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:57:48,518 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:57:48,527 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:57:48,528 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:57:48" (1/1) ... [2024-11-13 15:57:48,529 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@db81ab3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:48, skipping insertion in model container [2024-11-13 15:57:48,530 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:57:48" (1/1) ... [2024-11-13 15:57:48,556 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:57:48,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:57:48,848 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:57:48,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:57:48,895 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:57:48,896 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:48 WrapperNode [2024-11-13 15:57:48,896 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:57:48,897 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:57:48,897 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:57:48,897 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:57:48,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:48" (1/1) ... [2024-11-13 15:57:48,914 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:48" (1/1) ... [2024-11-13 15:57:48,944 INFO L138 Inliner]: procedures = 23, calls = 26, calls flagged for inlining = 10, calls inlined = 12, statements flattened = 177 [2024-11-13 15:57:48,944 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:57:48,945 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:57:48,945 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:57:48,945 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:57:48,955 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:48" (1/1) ... [2024-11-13 15:57:48,956 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:48" (1/1) ... [2024-11-13 15:57:48,959 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:48" (1/1) ... [2024-11-13 15:57:48,976 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-11-13 15:57:48,977 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:48" (1/1) ... [2024-11-13 15:57:48,977 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:48" (1/1) ... [2024-11-13 15:57:48,997 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:48" (1/1) ... [2024-11-13 15:57:49,002 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:48" (1/1) ... [2024-11-13 15:57:49,007 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:48" (1/1) ... [2024-11-13 15:57:49,009 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:48" (1/1) ... [2024-11-13 15:57:49,014 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:57:49,015 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:57:49,015 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:57:49,015 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:57:49,016 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:48" (1/1) ... [2024-11-13 15:57:49,023 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:57:49,038 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:57:49,052 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:57:49,055 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:57:49,085 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:57:49,085 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-13 15:57:49,087 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-13 15:57:49,087 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-13 15:57:49,087 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-13 15:57:49,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:57:49,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-13 15:57:49,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-13 15:57:49,088 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-13 15:57:49,088 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-13 15:57:49,088 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:57:49,088 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:57:49,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-13 15:57:49,088 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-13 15:57:49,091 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-13 15:57:49,227 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:57:49,229 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:57:49,703 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 15:57:49,703 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:57:50,019 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:57:50,020 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-13 15:57:50,020 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:57:50 BoogieIcfgContainer [2024-11-13 15:57:50,020 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:57:50,024 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:57:50,024 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:57:50,029 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:57:50,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:57:48" (1/3) ... [2024-11-13 15:57:50,030 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dcf36a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:57:50, skipping insertion in model container [2024-11-13 15:57:50,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:57:48" (2/3) ... [2024-11-13 15:57:50,031 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2dcf36a4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:57:50, skipping insertion in model container [2024-11-13 15:57:50,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:57:50" (3/3) ... [2024-11-13 15:57:50,033 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-chromosome-opt-symm.wvr.c [2024-11-13 15:57:50,052 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:57:50,054 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG chl-chromosome-opt-symm.wvr.c that has 3 procedures, 40 locations, 1 initial locations, 4 loop locations, and 10 error locations. [2024-11-13 15:57:50,054 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 15:57:50,149 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-13 15:57:50,202 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 45 transitions, 104 flow [2024-11-13 15:57:50,256 INFO L124 PetriNetUnfolderBase]: 6/43 cut-off events. [2024-11-13 15:57:50,260 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-13 15:57:50,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 43 events. 6/43 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 81 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2024-11-13 15:57:50,267 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 45 transitions, 104 flow [2024-11-13 15:57:50,273 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 43 places, 42 transitions, 96 flow [2024-11-13 15:57:50,283 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:57:50,297 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;@77646d70, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:57:50,298 INFO L334 AbstractCegarLoop]: Starting to check reachability of 16 error locations. [2024-11-13 15:57:50,302 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 15:57:50,302 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-13 15:57:50,303 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 15:57:50,303 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:50,304 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-13 15:57:50,304 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 15:57:50,309 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:50,310 INFO L85 PathProgramCache]: Analyzing trace with hash 557261, now seen corresponding path program 1 times [2024-11-13 15:57:50,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:50,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565377878] [2024-11-13 15:57:50,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:50,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:50,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:50,640 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:50,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:50,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565377878] [2024-11-13 15:57:50,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565377878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:50,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:57:50,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:57:50,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275487408] [2024-11-13 15:57:50,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:50,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:57:50,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:50,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:57:50,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:57:50,732 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 45 [2024-11-13 15:57:50,735 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 42 transitions, 96 flow. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:57:50,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:50,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 45 [2024-11-13 15:57:50,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:51,052 INFO L124 PetriNetUnfolderBase]: 158/323 cut-off events. [2024-11-13 15:57:51,054 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-13 15:57:51,057 INFO L83 FinitePrefix]: Finished finitePrefix Result has 610 conditions, 323 events. 158/323 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1284 event pairs, 100 based on Foata normal form. 2/242 useless extension candidates. Maximal degree in co-relation 526. Up to 258 conditions per place. [2024-11-13 15:57:51,062 INFO L140 encePairwiseOnDemand]: 34/45 looper letters, 30 selfloop transitions, 7 changer transitions 0/48 dead transitions. [2024-11-13 15:57:51,064 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 48 transitions, 182 flow [2024-11-13 15:57:51,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:57:51,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:57:51,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 93 transitions. [2024-11-13 15:57:51,085 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5166666666666667 [2024-11-13 15:57:51,088 INFO L175 Difference]: Start difference. First operand has 43 places, 42 transitions, 96 flow. Second operand 4 states and 93 transitions. [2024-11-13 15:57:51,090 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 48 transitions, 182 flow [2024-11-13 15:57:51,097 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 48 transitions, 174 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-13 15:57:51,106 INFO L231 Difference]: Finished difference. Result has 45 places, 48 transitions, 148 flow [2024-11-13 15:57:51,110 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=88, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=148, PETRI_PLACES=45, PETRI_TRANSITIONS=48} [2024-11-13 15:57:51,115 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 2 predicate places. [2024-11-13 15:57:51,116 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 48 transitions, 148 flow [2024-11-13 15:57:51,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:57:51,117 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:51,117 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-13 15:57:51,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:57:51,118 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 15:57:51,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:51,119 INFO L85 PathProgramCache]: Analyzing trace with hash -577961965, now seen corresponding path program 1 times [2024-11-13 15:57:51,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:51,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887804303] [2024-11-13 15:57:51,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:51,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:51,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:51,410 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:51,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:51,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1887804303] [2024-11-13 15:57:51,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1887804303] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:57:51,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [552168990] [2024-11-13 15:57:51,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:51,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:51,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:57:51,413 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:57:51,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:57:51,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:51,514 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:57:51,517 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:57:51,619 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:51,619 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:57:51,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [552168990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:51,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:57:51,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-13 15:57:51,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [653428060] [2024-11-13 15:57:51,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:51,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:57:51,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:51,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:57:51,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:57:51,657 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 45 [2024-11-13 15:57:51,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 48 transitions, 148 flow. Second operand has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:57:51,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:51,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 45 [2024-11-13 15:57:51,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:51,974 INFO L124 PetriNetUnfolderBase]: 158/321 cut-off events. [2024-11-13 15:57:51,975 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-11-13 15:57:51,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 615 conditions, 321 events. 158/321 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1274 event pairs, 100 based on Foata normal form. 2/243 useless extension candidates. Maximal degree in co-relation 565. Up to 248 conditions per place. [2024-11-13 15:57:51,980 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 23 selfloop transitions, 12 changer transitions 0/46 dead transitions. [2024-11-13 15:57:51,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 46 transitions, 210 flow [2024-11-13 15:57:51,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:57:51,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:57:51,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 115 transitions. [2024-11-13 15:57:51,985 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42592592592592593 [2024-11-13 15:57:51,986 INFO L175 Difference]: Start difference. First operand has 45 places, 48 transitions, 148 flow. Second operand 6 states and 115 transitions. [2024-11-13 15:57:51,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 46 transitions, 210 flow [2024-11-13 15:57:51,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 46 transitions, 210 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-13 15:57:51,990 INFO L231 Difference]: Finished difference. Result has 48 places, 46 transitions, 164 flow [2024-11-13 15:57:51,991 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=164, PETRI_PLACES=48, PETRI_TRANSITIONS=46} [2024-11-13 15:57:51,992 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 5 predicate places. [2024-11-13 15:57:51,993 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 46 transitions, 164 flow [2024-11-13 15:57:51,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.833333333333334) internal successors, (83), 6 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:57:51,994 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:51,994 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-13 15:57:52,020 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-13 15:57:52,195 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:52,196 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 15:57:52,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:52,197 INFO L85 PathProgramCache]: Analyzing trace with hash -736951182, now seen corresponding path program 1 times [2024-11-13 15:57:52,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:52,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671230459] [2024-11-13 15:57:52,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:52,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:52,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:52,426 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:52,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:52,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671230459] [2024-11-13 15:57:52,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1671230459] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:57:52,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273804012] [2024-11-13 15:57:52,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:52,427 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:52,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:57:52,431 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:57:52,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:57:52,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:52,543 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:57:52,544 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:57:52,598 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:52,598 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:57:52,668 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:52,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273804012] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:57:52,668 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:57:52,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-13 15:57:52,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092260156] [2024-11-13 15:57:52,669 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:57:52,669 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-13 15:57:52,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:52,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-13 15:57:52,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-13 15:57:52,720 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 45 [2024-11-13 15:57:52,720 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 46 transitions, 164 flow. Second operand has 12 states, 12 states have (on average 14.083333333333334) internal successors, (169), 12 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:57:52,721 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:52,721 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 45 [2024-11-13 15:57:52,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:53,043 INFO L124 PetriNetUnfolderBase]: 164/345 cut-off events. [2024-11-13 15:57:53,044 INFO L125 PetriNetUnfolderBase]: For 55/55 co-relation queries the response was YES. [2024-11-13 15:57:53,045 INFO L83 FinitePrefix]: Finished finitePrefix Result has 709 conditions, 345 events. 164/345 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1430 event pairs, 100 based on Foata normal form. 6/270 useless extension candidates. Maximal degree in co-relation 567. Up to 259 conditions per place. [2024-11-13 15:57:53,050 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 28 selfloop transitions, 25 changer transitions 0/64 dead transitions. [2024-11-13 15:57:53,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 64 transitions, 384 flow [2024-11-13 15:57:53,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 15:57:53,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 15:57:53,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 189 transitions. [2024-11-13 15:57:53,055 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42 [2024-11-13 15:57:53,056 INFO L175 Difference]: Start difference. First operand has 48 places, 46 transitions, 164 flow. Second operand 10 states and 189 transitions. [2024-11-13 15:57:53,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 64 transitions, 384 flow [2024-11-13 15:57:53,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 64 transitions, 326 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-11-13 15:57:53,062 INFO L231 Difference]: Finished difference. Result has 55 places, 64 transitions, 304 flow [2024-11-13 15:57:53,064 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=304, PETRI_PLACES=55, PETRI_TRANSITIONS=64} [2024-11-13 15:57:53,065 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 12 predicate places. [2024-11-13 15:57:53,066 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 64 transitions, 304 flow [2024-11-13 15:57:53,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.083333333333334) internal successors, (169), 12 states have internal predecessors, (169), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:57:53,067 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:53,067 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:53,091 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 15:57:53,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:53,272 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 15:57:53,272 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:53,272 INFO L85 PathProgramCache]: Analyzing trace with hash -389001885, now seen corresponding path program 1 times [2024-11-13 15:57:53,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:53,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631211332] [2024-11-13 15:57:53,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:53,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:53,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:53,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:53,440 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:53,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631211332] [2024-11-13 15:57:53,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631211332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:53,440 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:57:53,440 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:57:53,440 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378991661] [2024-11-13 15:57:53,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:53,441 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:57:53,441 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:53,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:57:53,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:57:53,452 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2024-11-13 15:57:53,453 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 64 transitions, 304 flow. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:57:53,453 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:53,453 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2024-11-13 15:57:53,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:53,742 INFO L124 PetriNetUnfolderBase]: 339/614 cut-off events. [2024-11-13 15:57:53,742 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-11-13 15:57:53,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1276 conditions, 614 events. 339/614 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2565 event pairs, 136 based on Foata normal form. 14/494 useless extension candidates. Maximal degree in co-relation 1209. Up to 349 conditions per place. [2024-11-13 15:57:53,749 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 78 selfloop transitions, 3 changer transitions 0/92 dead transitions. [2024-11-13 15:57:53,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 92 transitions, 526 flow [2024-11-13 15:57:53,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:57:53,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:57:53,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 119 transitions. [2024-11-13 15:57:53,751 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6611111111111111 [2024-11-13 15:57:53,751 INFO L175 Difference]: Start difference. First operand has 55 places, 64 transitions, 304 flow. Second operand 4 states and 119 transitions. [2024-11-13 15:57:53,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 92 transitions, 526 flow [2024-11-13 15:57:53,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 92 transitions, 502 flow, removed 6 selfloop flow, removed 2 redundant places. [2024-11-13 15:57:53,756 INFO L231 Difference]: Finished difference. Result has 58 places, 66 transitions, 302 flow [2024-11-13 15:57:53,756 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=280, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=302, PETRI_PLACES=58, PETRI_TRANSITIONS=66} [2024-11-13 15:57:53,757 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 15 predicate places. [2024-11-13 15:57:53,757 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 66 transitions, 302 flow [2024-11-13 15:57:53,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 4 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:57:53,757 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:53,757 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:53,757 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:57:53,758 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 15:57:53,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:53,758 INFO L85 PathProgramCache]: Analyzing trace with hash -208167015, now seen corresponding path program 1 times [2024-11-13 15:57:53,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:53,758 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366899250] [2024-11-13 15:57:53,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:53,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:53,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:53,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:53,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:53,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366899250] [2024-11-13 15:57:53,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366899250] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:53,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:57:53,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:57:53,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002044750] [2024-11-13 15:57:53,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:53,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:57:53,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:53,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:57:53,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:57:53,941 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2024-11-13 15:57:53,942 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 66 transitions, 302 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:57:53,942 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:53,942 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2024-11-13 15:57:53,942 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:54,291 INFO L124 PetriNetUnfolderBase]: 592/1047 cut-off events. [2024-11-13 15:57:54,292 INFO L125 PetriNetUnfolderBase]: For 309/337 co-relation queries the response was YES. [2024-11-13 15:57:54,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2300 conditions, 1047 events. 592/1047 cut-off events. For 309/337 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 4696 event pairs, 261 based on Foata normal form. 24/889 useless extension candidates. Maximal degree in co-relation 2233. Up to 611 conditions per place. [2024-11-13 15:57:54,306 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 81 selfloop transitions, 3 changer transitions 0/95 dead transitions. [2024-11-13 15:57:54,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 95 transitions, 559 flow [2024-11-13 15:57:54,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:57:54,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:57:54,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2024-11-13 15:57:54,310 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6444444444444445 [2024-11-13 15:57:54,310 INFO L175 Difference]: Start difference. First operand has 58 places, 66 transitions, 302 flow. Second operand 4 states and 116 transitions. [2024-11-13 15:57:54,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 95 transitions, 559 flow [2024-11-13 15:57:54,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 95 transitions, 553 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:57:54,321 INFO L231 Difference]: Finished difference. Result has 62 places, 68 transitions, 322 flow [2024-11-13 15:57:54,321 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=322, PETRI_PLACES=62, PETRI_TRANSITIONS=68} [2024-11-13 15:57:54,322 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 19 predicate places. [2024-11-13 15:57:54,322 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 68 transitions, 322 flow [2024-11-13 15:57:54,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:57:54,323 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:54,323 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:54,323 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 15:57:54,323 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 15:57:54,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:54,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1147299967, now seen corresponding path program 1 times [2024-11-13 15:57:54,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:54,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808728474] [2024-11-13 15:57:54,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:54,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:54,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:54,471 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-13 15:57:54,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:54,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808728474] [2024-11-13 15:57:54,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808728474] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:54,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:57:54,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:57:54,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551531728] [2024-11-13 15:57:54,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:54,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:57:54,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:54,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:57:54,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:57:54,473 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2024-11-13 15:57:54,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 68 transitions, 322 flow. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:57:54,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:54,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2024-11-13 15:57:54,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:54,740 INFO L124 PetriNetUnfolderBase]: 512/1011 cut-off events. [2024-11-13 15:57:54,740 INFO L125 PetriNetUnfolderBase]: For 373/375 co-relation queries the response was YES. [2024-11-13 15:57:54,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2332 conditions, 1011 events. 512/1011 cut-off events. For 373/375 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4922 event pairs, 360 based on Foata normal form. 2/907 useless extension candidates. Maximal degree in co-relation 2263. Up to 817 conditions per place. [2024-11-13 15:57:54,749 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 46 selfloop transitions, 7 changer transitions 0/66 dead transitions. [2024-11-13 15:57:54,749 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 66 transitions, 419 flow [2024-11-13 15:57:54,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:57:54,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:57:54,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 84 transitions. [2024-11-13 15:57:54,751 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6222222222222222 [2024-11-13 15:57:54,751 INFO L175 Difference]: Start difference. First operand has 62 places, 68 transitions, 322 flow. Second operand 3 states and 84 transitions. [2024-11-13 15:57:54,751 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 66 transitions, 419 flow [2024-11-13 15:57:54,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 66 transitions, 410 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:57:54,755 INFO L231 Difference]: Finished difference. Result has 62 places, 66 transitions, 318 flow [2024-11-13 15:57:54,756 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=304, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=318, PETRI_PLACES=62, PETRI_TRANSITIONS=66} [2024-11-13 15:57:54,757 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 19 predicate places. [2024-11-13 15:57:54,757 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 66 transitions, 318 flow [2024-11-13 15:57:54,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:57:54,757 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:54,757 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-13 15:57:54,758 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:57:54,758 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 15:57:54,758 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:54,758 INFO L85 PathProgramCache]: Analyzing trace with hash 128317048, now seen corresponding path program 2 times [2024-11-13 15:57:54,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:54,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803558519] [2024-11-13 15:57:54,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:54,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:54,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:55,132 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:57:55,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:55,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803558519] [2024-11-13 15:57:55,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803558519] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:57:55,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [758836057] [2024-11-13 15:57:55,133 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:57:55,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:55,134 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:57:55,138 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:57:55,140 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 15:57:55,249 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-13 15:57:55,249 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:57:55,250 INFO L255 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:57:55,252 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:57:55,316 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-13 15:57:55,316 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:57:55,391 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-13 15:57:55,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [758836057] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:57:55,392 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:57:55,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 13 [2024-11-13 15:57:55,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959348682] [2024-11-13 15:57:55,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:57:55,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-13 15:57:55,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:55,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-13 15:57:55,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-11-13 15:57:55,460 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 45 [2024-11-13 15:57:55,461 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 66 transitions, 318 flow. Second operand has 15 states, 15 states have (on average 14.333333333333334) internal successors, (215), 15 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:57:55,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:55,462 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 45 [2024-11-13 15:57:55,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:56,047 INFO L124 PetriNetUnfolderBase]: 514/1013 cut-off events. [2024-11-13 15:57:56,047 INFO L125 PetriNetUnfolderBase]: For 335/337 co-relation queries the response was YES. [2024-11-13 15:57:56,050 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2315 conditions, 1013 events. 514/1013 cut-off events. For 335/337 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4931 event pairs, 360 based on Foata normal form. 2/909 useless extension candidates. Maximal degree in co-relation 2241. Up to 800 conditions per place. [2024-11-13 15:57:56,056 INFO L140 encePairwiseOnDemand]: 36/45 looper letters, 24 selfloop transitions, 33 changer transitions 0/68 dead transitions. [2024-11-13 15:57:56,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 68 transitions, 436 flow [2024-11-13 15:57:56,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-13 15:57:56,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-13 15:57:56,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 224 transitions. [2024-11-13 15:57:56,059 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.38290598290598293 [2024-11-13 15:57:56,059 INFO L175 Difference]: Start difference. First operand has 62 places, 66 transitions, 318 flow. Second operand 13 states and 224 transitions. [2024-11-13 15:57:56,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 68 transitions, 436 flow [2024-11-13 15:57:56,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 68 transitions, 400 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-11-13 15:57:56,064 INFO L231 Difference]: Finished difference. Result has 66 places, 68 transitions, 352 flow [2024-11-13 15:57:56,064 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=352, PETRI_PLACES=66, PETRI_TRANSITIONS=68} [2024-11-13 15:57:56,065 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 23 predicate places. [2024-11-13 15:57:56,066 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 68 transitions, 352 flow [2024-11-13 15:57:56,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 14.333333333333334) internal successors, (215), 15 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:57:56,066 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:56,066 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:56,095 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 15:57:56,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-13 15:57:56,267 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 15:57:56,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:56,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1686954691, now seen corresponding path program 1 times [2024-11-13 15:57:56,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:56,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1135885205] [2024-11-13 15:57:56,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:56,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:56,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:56,448 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:57:56,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:56,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1135885205] [2024-11-13 15:57:56,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1135885205] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:57:56,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416124250] [2024-11-13 15:57:56,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:56,449 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:56,450 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:57:56,452 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:57:56,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 15:57:56,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:56,571 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-13 15:57:56,573 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:57:56,643 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:57:56,643 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:57:56,693 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-13 15:57:56,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416124250] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:57:56,693 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:57:56,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-13 15:57:56,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556764977] [2024-11-13 15:57:56,694 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:57:56,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-13 15:57:56,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:56,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-13 15:57:56,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2024-11-13 15:57:56,736 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 45 [2024-11-13 15:57:56,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 68 transitions, 352 flow. Second operand has 11 states, 11 states have (on average 14.818181818181818) internal successors, (163), 11 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:57:56,737 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:56,737 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 45 [2024-11-13 15:57:56,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:57,073 INFO L124 PetriNetUnfolderBase]: 510/1009 cut-off events. [2024-11-13 15:57:57,073 INFO L125 PetriNetUnfolderBase]: For 333/335 co-relation queries the response was YES. [2024-11-13 15:57:57,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2310 conditions, 1009 events. 510/1009 cut-off events. For 333/335 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4809 event pairs, 360 based on Foata normal form. 0/899 useless extension candidates. Maximal degree in co-relation 2156. Up to 804 conditions per place. [2024-11-13 15:57:57,080 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 29 selfloop transitions, 24 changer transitions 0/64 dead transitions. [2024-11-13 15:57:57,080 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 64 transitions, 430 flow [2024-11-13 15:57:57,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 15:57:57,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-13 15:57:57,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 132 transitions. [2024-11-13 15:57:57,081 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41904761904761906 [2024-11-13 15:57:57,082 INFO L175 Difference]: Start difference. First operand has 66 places, 68 transitions, 352 flow. Second operand 7 states and 132 transitions. [2024-11-13 15:57:57,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 64 transitions, 430 flow [2024-11-13 15:57:57,084 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 64 transitions, 324 flow, removed 8 selfloop flow, removed 12 redundant places. [2024-11-13 15:57:57,085 INFO L231 Difference]: Finished difference. Result has 60 places, 64 transitions, 266 flow [2024-11-13 15:57:57,086 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=266, PETRI_PLACES=60, PETRI_TRANSITIONS=64} [2024-11-13 15:57:57,086 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 17 predicate places. [2024-11-13 15:57:57,086 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 64 transitions, 266 flow [2024-11-13 15:57:57,087 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.818181818181818) internal successors, (163), 11 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:57:57,087 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:57,087 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:57,110 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-13 15:57:57,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-13 15:57:57,288 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 15:57:57,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:57,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1756222269, now seen corresponding path program 2 times [2024-11-13 15:57:57,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:57,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501551455] [2024-11-13 15:57:57,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:57,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:57,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:57,562 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 15:57:57,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:57,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501551455] [2024-11-13 15:57:57,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501551455] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:57:57,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [566052548] [2024-11-13 15:57:57,563 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-13 15:57:57,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:57,563 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:57:57,565 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:57:57,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 15:57:57,705 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-13 15:57:57,705 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:57:57,707 INFO L255 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-13 15:57:57,709 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:57:57,902 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 15:57:57,902 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 15:57:58,020 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-13 15:57:58,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [566052548] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 15:57:58,021 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 15:57:58,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-13 15:57:58,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688318792] [2024-11-13 15:57:58,021 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 15:57:58,021 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-13 15:57:58,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:58,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-13 15:57:58,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2024-11-13 15:57:58,063 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 45 [2024-11-13 15:57:58,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 64 transitions, 266 flow. Second operand has 18 states, 18 states have (on average 14.555555555555555) internal successors, (262), 18 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:57:58,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:58,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 45 [2024-11-13 15:57:58,065 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:58,471 INFO L124 PetriNetUnfolderBase]: 506/1005 cut-off events. [2024-11-13 15:57:58,471 INFO L125 PetriNetUnfolderBase]: For 309/311 co-relation queries the response was YES. [2024-11-13 15:57:58,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2269 conditions, 1005 events. 506/1005 cut-off events. For 309/311 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 4775 event pairs, 360 based on Foata normal form. 2/902 useless extension candidates. Maximal degree in co-relation 2158. Up to 798 conditions per place. [2024-11-13 15:57:58,478 INFO L140 encePairwiseOnDemand]: 38/45 looper letters, 27 selfloop transitions, 22 changer transitions 0/60 dead transitions. [2024-11-13 15:57:58,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 60 transitions, 346 flow [2024-11-13 15:57:58,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-13 15:57:58,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-13 15:57:58,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 192 transitions. [2024-11-13 15:57:58,481 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3878787878787879 [2024-11-13 15:57:58,481 INFO L175 Difference]: Start difference. First operand has 60 places, 64 transitions, 266 flow. Second operand 11 states and 192 transitions. [2024-11-13 15:57:58,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 60 transitions, 346 flow [2024-11-13 15:57:58,483 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 60 transitions, 302 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-13 15:57:58,485 INFO L231 Difference]: Finished difference. Result has 64 places, 60 transitions, 248 flow [2024-11-13 15:57:58,486 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=248, PETRI_PLACES=64, PETRI_TRANSITIONS=60} [2024-11-13 15:57:58,487 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 21 predicate places. [2024-11-13 15:57:58,487 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 60 transitions, 248 flow [2024-11-13 15:57:58,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 14.555555555555555) internal successors, (262), 18 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:57:58,488 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:58,488 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:58,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 15:57:58,692 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:58,692 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 15:57:58,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:58,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1900718397, now seen corresponding path program 3 times [2024-11-13 15:57:58,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:58,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054617866] [2024-11-13 15:57:58,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:58,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:58,888 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-13 15:57:58,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:58,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054617866] [2024-11-13 15:57:58,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054617866] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:57:58,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055970218] [2024-11-13 15:57:58,889 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-13 15:57:58,889 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:57:58,889 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:57:58,892 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:57:58,894 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 15:57:59,066 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-13 15:57:59,067 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-13 15:57:59,068 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 15:57:59,070 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:57:59,115 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-13 15:57:59,116 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:57:59,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055970218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:59,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:57:59,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-13 15:57:59,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398180351] [2024-11-13 15:57:59,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:59,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 15:57:59,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:59,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 15:57:59,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:57:59,128 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 45 [2024-11-13 15:57:59,128 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 60 transitions, 248 flow. Second operand has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:57:59,129 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:59,129 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 45 [2024-11-13 15:57:59,129 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:57:59,417 INFO L124 PetriNetUnfolderBase]: 623/1038 cut-off events. [2024-11-13 15:57:59,417 INFO L125 PetriNetUnfolderBase]: For 288/336 co-relation queries the response was YES. [2024-11-13 15:57:59,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2466 conditions, 1038 events. 623/1038 cut-off events. For 288/336 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 4321 event pairs, 26 based on Foata normal form. 24/925 useless extension candidates. Maximal degree in co-relation 2355. Up to 628 conditions per place. [2024-11-13 15:57:59,424 INFO L140 encePairwiseOnDemand]: 41/45 looper letters, 70 selfloop transitions, 5 changer transitions 0/83 dead transitions. [2024-11-13 15:57:59,424 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 83 transitions, 468 flow [2024-11-13 15:57:59,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:57:59,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:57:59,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2024-11-13 15:57:59,425 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5888888888888889 [2024-11-13 15:57:59,425 INFO L175 Difference]: Start difference. First operand has 64 places, 60 transitions, 248 flow. Second operand 4 states and 106 transitions. [2024-11-13 15:57:59,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 83 transitions, 468 flow [2024-11-13 15:57:59,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 83 transitions, 424 flow, removed 0 selfloop flow, removed 10 redundant places. [2024-11-13 15:57:59,429 INFO L231 Difference]: Finished difference. Result has 56 places, 59 transitions, 210 flow [2024-11-13 15:57:59,429 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=210, PETRI_PLACES=56, PETRI_TRANSITIONS=59} [2024-11-13 15:57:59,430 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 13 predicate places. [2024-11-13 15:57:59,430 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 59 transitions, 210 flow [2024-11-13 15:57:59,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.2) internal successors, (86), 5 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:57:59,431 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:57:59,431 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:57:59,455 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 15:57:59,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-13 15:57:59,632 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 15:57:59,633 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:57:59,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1207272411, now seen corresponding path program 1 times [2024-11-13 15:57:59,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:57:59,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119931139] [2024-11-13 15:57:59,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:57:59,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:57:59,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:57:59,786 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-13 15:57:59,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:57:59,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119931139] [2024-11-13 15:57:59,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119931139] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:57:59,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:57:59,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:57:59,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284559703] [2024-11-13 15:57:59,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:57:59,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:57:59,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:57:59,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:57:59,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:57:59,800 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2024-11-13 15:57:59,801 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 59 transitions, 210 flow. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:57:59,801 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:57:59,801 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2024-11-13 15:57:59,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:58:00,047 INFO L124 PetriNetUnfolderBase]: 573/1051 cut-off events. [2024-11-13 15:58:00,048 INFO L125 PetriNetUnfolderBase]: For 534/561 co-relation queries the response was YES. [2024-11-13 15:58:00,049 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2497 conditions, 1051 events. 573/1051 cut-off events. For 534/561 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 4897 event pairs, 119 based on Foata normal form. 24/961 useless extension candidates. Maximal degree in co-relation 1138. Up to 517 conditions per place. [2024-11-13 15:58:00,054 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 72 selfloop transitions, 6 changer transitions 0/87 dead transitions. [2024-11-13 15:58:00,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 87 transitions, 448 flow [2024-11-13 15:58:00,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:58:00,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:58:00,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 113 transitions. [2024-11-13 15:58:00,056 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6277777777777778 [2024-11-13 15:58:00,056 INFO L175 Difference]: Start difference. First operand has 56 places, 59 transitions, 210 flow. Second operand 4 states and 113 transitions. [2024-11-13 15:58:00,056 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 87 transitions, 448 flow [2024-11-13 15:58:00,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 87 transitions, 438 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-13 15:58:00,062 INFO L231 Difference]: Finished difference. Result has 56 places, 59 transitions, 216 flow [2024-11-13 15:58:00,062 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=196, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=216, PETRI_PLACES=56, PETRI_TRANSITIONS=59} [2024-11-13 15:58:00,063 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 13 predicate places. [2024-11-13 15:58:00,063 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 59 transitions, 216 flow [2024-11-13 15:58:00,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:58:00,063 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:58:00,064 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:58:00,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 15:58:00,064 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 15:58:00,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:58:00,065 INFO L85 PathProgramCache]: Analyzing trace with hash 461294520, now seen corresponding path program 1 times [2024-11-13 15:58:00,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:58:00,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1462184833] [2024-11-13 15:58:00,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:58:00,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:58:00,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:00,321 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-13 15:58:00,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:58:00,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1462184833] [2024-11-13 15:58:00,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1462184833] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:58:00,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086615093] [2024-11-13 15:58:00,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:58:00,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:58:00,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:58:00,326 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:58:00,329 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 15:58:00,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:00,489 INFO L255 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 15:58:00,492 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:58:00,527 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-13 15:58:00,527 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:58:00,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086615093] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:58:00,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:58:00,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-13 15:58:00,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35069559] [2024-11-13 15:58:00,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:58:00,528 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 15:58:00,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:58:00,529 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 15:58:00,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 15:58:00,539 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2024-11-13 15:58:00,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 59 transitions, 216 flow. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:58:00,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:58:00,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2024-11-13 15:58:00,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:58:00,894 INFO L124 PetriNetUnfolderBase]: 617/1114 cut-off events. [2024-11-13 15:58:00,894 INFO L125 PetriNetUnfolderBase]: For 804/804 co-relation queries the response was YES. [2024-11-13 15:58:00,896 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2772 conditions, 1114 events. 617/1114 cut-off events. For 804/804 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4848 event pairs, 36 based on Foata normal form. 29/1048 useless extension candidates. Maximal degree in co-relation 1170. Up to 353 conditions per place. [2024-11-13 15:58:00,901 INFO L140 encePairwiseOnDemand]: 41/45 looper letters, 99 selfloop transitions, 5 changer transitions 0/111 dead transitions. [2024-11-13 15:58:00,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 111 transitions, 651 flow [2024-11-13 15:58:00,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 15:58:00,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 15:58:00,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 162 transitions. [2024-11-13 15:58:00,903 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6 [2024-11-13 15:58:00,903 INFO L175 Difference]: Start difference. First operand has 56 places, 59 transitions, 216 flow. Second operand 6 states and 162 transitions. [2024-11-13 15:58:00,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 111 transitions, 651 flow [2024-11-13 15:58:00,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 111 transitions, 611 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:58:00,907 INFO L231 Difference]: Finished difference. Result has 58 places, 58 transitions, 214 flow [2024-11-13 15:58:00,907 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=214, PETRI_PLACES=58, PETRI_TRANSITIONS=58} [2024-11-13 15:58:00,908 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 15 predicate places. [2024-11-13 15:58:00,908 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 58 transitions, 214 flow [2024-11-13 15:58:00,909 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:58:00,909 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:58:00,909 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:58:00,933 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 15:58:01,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-13 15:58:01,114 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 15:58:01,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:58:01,114 INFO L85 PathProgramCache]: Analyzing trace with hash 1415228816, now seen corresponding path program 1 times [2024-11-13 15:58:01,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:58:01,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927204703] [2024-11-13 15:58:01,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:58:01,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:58:01,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:01,224 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-13 15:58:01,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:58:01,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927204703] [2024-11-13 15:58:01,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927204703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:58:01,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:58:01,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:58:01,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824594180] [2024-11-13 15:58:01,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:58:01,225 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:58:01,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:58:01,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:58:01,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:58:01,233 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2024-11-13 15:58:01,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 58 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:58:01,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:58:01,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2024-11-13 15:58:01,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:58:01,516 INFO L124 PetriNetUnfolderBase]: 632/1174 cut-off events. [2024-11-13 15:58:01,516 INFO L125 PetriNetUnfolderBase]: For 843/843 co-relation queries the response was YES. [2024-11-13 15:58:01,518 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2914 conditions, 1174 events. 632/1174 cut-off events. For 843/843 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 5475 event pairs, 156 based on Foata normal form. 29/1134 useless extension candidates. Maximal degree in co-relation 1151. Up to 546 conditions per place. [2024-11-13 15:58:01,524 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 72 selfloop transitions, 6 changer transitions 0/85 dead transitions. [2024-11-13 15:58:01,524 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 85 transitions, 469 flow [2024-11-13 15:58:01,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:58:01,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:58:01,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2024-11-13 15:58:01,525 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6111111111111112 [2024-11-13 15:58:01,525 INFO L175 Difference]: Start difference. First operand has 58 places, 58 transitions, 214 flow. Second operand 4 states and 110 transitions. [2024-11-13 15:58:01,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 85 transitions, 469 flow [2024-11-13 15:58:01,529 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 85 transitions, 456 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-13 15:58:01,530 INFO L231 Difference]: Finished difference. Result has 56 places, 58 transitions, 217 flow [2024-11-13 15:58:01,530 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=217, PETRI_PLACES=56, PETRI_TRANSITIONS=58} [2024-11-13 15:58:01,531 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 13 predicate places. [2024-11-13 15:58:01,531 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 58 transitions, 217 flow [2024-11-13 15:58:01,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:58:01,531 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:58:01,531 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:58:01,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 15:58:01,532 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 15:58:01,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:58:01,532 INFO L85 PathProgramCache]: Analyzing trace with hash -1033619322, now seen corresponding path program 1 times [2024-11-13 15:58:01,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:58:01,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137325522] [2024-11-13 15:58:01,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:58:01,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:58:01,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:01,652 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-13 15:58:01,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:58:01,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137325522] [2024-11-13 15:58:01,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137325522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:58:01,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:58:01,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:58:01,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464248162] [2024-11-13 15:58:01,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:58:01,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:58:01,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:58:01,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:58:01,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:58:01,654 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2024-11-13 15:58:01,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 58 transitions, 217 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:58:01,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:58:01,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2024-11-13 15:58:01,655 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:58:01,939 INFO L124 PetriNetUnfolderBase]: 699/1325 cut-off events. [2024-11-13 15:58:01,939 INFO L125 PetriNetUnfolderBase]: For 958/958 co-relation queries the response was YES. [2024-11-13 15:58:01,942 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3346 conditions, 1325 events. 699/1325 cut-off events. For 958/958 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 6840 event pairs, 308 based on Foata normal form. 5/1316 useless extension candidates. Maximal degree in co-relation 1466. Up to 631 conditions per place. [2024-11-13 15:58:01,948 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 77 selfloop transitions, 5 changer transitions 2/91 dead transitions. [2024-11-13 15:58:01,948 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 91 transitions, 507 flow [2024-11-13 15:58:01,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:58:01,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 15:58:01,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 143 transitions. [2024-11-13 15:58:01,949 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6355555555555555 [2024-11-13 15:58:01,949 INFO L175 Difference]: Start difference. First operand has 56 places, 58 transitions, 217 flow. Second operand 5 states and 143 transitions. [2024-11-13 15:58:01,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 91 transitions, 507 flow [2024-11-13 15:58:01,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 91 transitions, 484 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:58:01,955 INFO L231 Difference]: Finished difference. Result has 60 places, 59 transitions, 229 flow [2024-11-13 15:58:01,956 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=229, PETRI_PLACES=60, PETRI_TRANSITIONS=59} [2024-11-13 15:58:01,957 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 17 predicate places. [2024-11-13 15:58:01,958 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 59 transitions, 229 flow [2024-11-13 15:58:01,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:58:01,958 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:58:01,959 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:58:01,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 15:58:01,959 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 15:58:01,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:58:01,959 INFO L85 PathProgramCache]: Analyzing trace with hash -382132636, now seen corresponding path program 2 times [2024-11-13 15:58:01,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:58:01,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503300199] [2024-11-13 15:58:01,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:58:01,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:58:01,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:02,094 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-13 15:58:02,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:58:02,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503300199] [2024-11-13 15:58:02,094 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [503300199] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:58:02,094 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:58:02,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:58:02,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571442634] [2024-11-13 15:58:02,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:58:02,095 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:58:02,096 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:58:02,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:58:02,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:58:02,098 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2024-11-13 15:58:02,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 59 transitions, 229 flow. Second operand has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:58:02,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:58:02,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2024-11-13 15:58:02,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:58:02,409 INFO L124 PetriNetUnfolderBase]: 759/1473 cut-off events. [2024-11-13 15:58:02,409 INFO L125 PetriNetUnfolderBase]: For 1271/1271 co-relation queries the response was YES. [2024-11-13 15:58:02,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3753 conditions, 1473 events. 759/1473 cut-off events. For 1271/1271 co-relation queries the response was YES. Maximal size of possible extension queue 81. Compared 7848 event pairs, 386 based on Foata normal form. 4/1458 useless extension candidates. Maximal degree in co-relation 1650. Up to 735 conditions per place. [2024-11-13 15:58:02,418 INFO L140 encePairwiseOnDemand]: 39/45 looper letters, 78 selfloop transitions, 5 changer transitions 0/90 dead transitions. [2024-11-13 15:58:02,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 90 transitions, 522 flow [2024-11-13 15:58:02,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 15:58:02,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 15:58:02,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 139 transitions. [2024-11-13 15:58:02,420 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6177777777777778 [2024-11-13 15:58:02,420 INFO L175 Difference]: Start difference. First operand has 60 places, 59 transitions, 229 flow. Second operand 5 states and 139 transitions. [2024-11-13 15:58:02,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 90 transitions, 522 flow [2024-11-13 15:58:02,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 90 transitions, 513 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:58:02,426 INFO L231 Difference]: Finished difference. Result has 64 places, 60 transitions, 243 flow [2024-11-13 15:58:02,426 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=243, PETRI_PLACES=64, PETRI_TRANSITIONS=60} [2024-11-13 15:58:02,427 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 21 predicate places. [2024-11-13 15:58:02,427 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 60 transitions, 243 flow [2024-11-13 15:58:02,427 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.75) internal successors, (87), 4 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:58:02,427 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:58:02,427 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:58:02,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 15:58:02,427 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 15:58:02,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:58:02,428 INFO L85 PathProgramCache]: Analyzing trace with hash -2085923430, now seen corresponding path program 3 times [2024-11-13 15:58:02,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:58:02,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1069843698] [2024-11-13 15:58:02,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:58:02,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:58:02,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:02,542 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-13 15:58:02,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:58:02,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1069843698] [2024-11-13 15:58:02,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1069843698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:58:02,542 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:58:02,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-13 15:58:02,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199742087] [2024-11-13 15:58:02,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:58:02,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:58:02,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:58:02,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:58:02,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:58:02,548 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2024-11-13 15:58:02,548 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 60 transitions, 243 flow. Second operand has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:58:02,548 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:58:02,549 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2024-11-13 15:58:02,549 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:58:02,823 INFO L124 PetriNetUnfolderBase]: 759/1454 cut-off events. [2024-11-13 15:58:02,824 INFO L125 PetriNetUnfolderBase]: For 1638/1638 co-relation queries the response was YES. [2024-11-13 15:58:02,827 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3947 conditions, 1454 events. 759/1454 cut-off events. For 1638/1638 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7647 event pairs, 503 based on Foata normal form. 16/1465 useless extension candidates. Maximal degree in co-relation 3031. Up to 998 conditions per place. [2024-11-13 15:58:02,835 INFO L140 encePairwiseOnDemand]: 41/45 looper letters, 64 selfloop transitions, 2 changer transitions 4/75 dead transitions. [2024-11-13 15:58:02,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 75 transitions, 449 flow [2024-11-13 15:58:02,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:58:02,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 15:58:02,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 87 transitions. [2024-11-13 15:58:02,839 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6444444444444445 [2024-11-13 15:58:02,839 INFO L175 Difference]: Start difference. First operand has 64 places, 60 transitions, 243 flow. Second operand 3 states and 87 transitions. [2024-11-13 15:58:02,839 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 75 transitions, 449 flow [2024-11-13 15:58:02,843 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 75 transitions, 443 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 15:58:02,844 INFO L231 Difference]: Finished difference. Result has 65 places, 58 transitions, 237 flow [2024-11-13 15:58:02,844 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=237, PETRI_PLACES=65, PETRI_TRANSITIONS=58} [2024-11-13 15:58:02,846 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 22 predicate places. [2024-11-13 15:58:02,846 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 58 transitions, 237 flow [2024-11-13 15:58:02,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.666666666666668) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:58:02,847 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:58:02,847 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:58:02,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 15:58:02,847 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 15:58:02,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:58:02,848 INFO L85 PathProgramCache]: Analyzing trace with hash -600281153, now seen corresponding path program 1 times [2024-11-13 15:58:02,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:58:02,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030921446] [2024-11-13 15:58:02,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:58:02,849 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:58:02,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:02,993 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-13 15:58:02,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:58:02,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030921446] [2024-11-13 15:58:02,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030921446] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:58:02,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:58:02,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:58:02,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423060516] [2024-11-13 15:58:02,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:58:02,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:58:02,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:58:02,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:58:02,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:58:02,995 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2024-11-13 15:58:02,996 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 58 transitions, 237 flow. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:58:02,996 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:58:02,996 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2024-11-13 15:58:02,996 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:58:03,263 INFO L124 PetriNetUnfolderBase]: 597/1150 cut-off events. [2024-11-13 15:58:03,263 INFO L125 PetriNetUnfolderBase]: For 1270/1270 co-relation queries the response was YES. [2024-11-13 15:58:03,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3283 conditions, 1150 events. 597/1150 cut-off events. For 1270/1270 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 5855 event pairs, 261 based on Foata normal form. 20/1168 useless extension candidates. Maximal degree in co-relation 2207. Up to 547 conditions per place. [2024-11-13 15:58:03,271 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 79 selfloop transitions, 4 changer transitions 0/90 dead transitions. [2024-11-13 15:58:03,271 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 90 transitions, 531 flow [2024-11-13 15:58:03,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:58:03,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:58:03,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 125 transitions. [2024-11-13 15:58:03,273 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6944444444444444 [2024-11-13 15:58:03,273 INFO L175 Difference]: Start difference. First operand has 65 places, 58 transitions, 237 flow. Second operand 4 states and 125 transitions. [2024-11-13 15:58:03,273 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 90 transitions, 531 flow [2024-11-13 15:58:03,277 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 90 transitions, 501 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-13 15:58:03,278 INFO L231 Difference]: Finished difference. Result has 63 places, 60 transitions, 252 flow [2024-11-13 15:58:03,279 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=221, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=252, PETRI_PLACES=63, PETRI_TRANSITIONS=60} [2024-11-13 15:58:03,279 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 20 predicate places. [2024-11-13 15:58:03,279 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 60 transitions, 252 flow [2024-11-13 15:58:03,280 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:58:03,280 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:58:03,280 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:58:03,280 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 15:58:03,280 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 15:58:03,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:58:03,281 INFO L85 PathProgramCache]: Analyzing trace with hash 182123377, now seen corresponding path program 2 times [2024-11-13 15:58:03,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:58:03,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1925832858] [2024-11-13 15:58:03,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:58:03,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:58:03,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:03,404 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-13 15:58:03,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:58:03,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1925832858] [2024-11-13 15:58:03,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1925832858] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:58:03,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:58:03,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 15:58:03,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960878679] [2024-11-13 15:58:03,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:58:03,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:58:03,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:58:03,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:58:03,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:58:03,406 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 45 [2024-11-13 15:58:03,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 60 transitions, 252 flow. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:58:03,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:58:03,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 45 [2024-11-13 15:58:03,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:58:03,668 INFO L124 PetriNetUnfolderBase]: 657/1269 cut-off events. [2024-11-13 15:58:03,668 INFO L125 PetriNetUnfolderBase]: For 1617/1617 co-relation queries the response was YES. [2024-11-13 15:58:03,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3558 conditions, 1269 events. 657/1269 cut-off events. For 1617/1617 co-relation queries the response was YES. Maximal size of possible extension queue 66. Compared 6494 event pairs, 239 based on Foata normal form. 20/1279 useless extension candidates. Maximal degree in co-relation 1577. Up to 829 conditions per place. [2024-11-13 15:58:03,676 INFO L140 encePairwiseOnDemand]: 40/45 looper letters, 68 selfloop transitions, 5 changer transitions 3/83 dead transitions. [2024-11-13 15:58:03,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 83 transitions, 505 flow [2024-11-13 15:58:03,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:58:03,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:58:03,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 117 transitions. [2024-11-13 15:58:03,677 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65 [2024-11-13 15:58:03,677 INFO L175 Difference]: Start difference. First operand has 63 places, 60 transitions, 252 flow. Second operand 4 states and 117 transitions. [2024-11-13 15:58:03,677 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 83 transitions, 505 flow [2024-11-13 15:58:03,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 83 transitions, 488 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-13 15:58:03,683 INFO L231 Difference]: Finished difference. Result has 67 places, 63 transitions, 294 flow [2024-11-13 15:58:03,684 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=294, PETRI_PLACES=67, PETRI_TRANSITIONS=63} [2024-11-13 15:58:03,684 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 24 predicate places. [2024-11-13 15:58:03,684 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 63 transitions, 294 flow [2024-11-13 15:58:03,685 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:58:03,685 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:58:03,685 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:58:03,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 15:58:03,685 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 15:58:03,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:58:03,686 INFO L85 PathProgramCache]: Analyzing trace with hash 243696256, now seen corresponding path program 1 times [2024-11-13 15:58:03,686 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:58:03,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267332770] [2024-11-13 15:58:03,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:58:03,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:58:03,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:03,876 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-13 15:58:03,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:58:03,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267332770] [2024-11-13 15:58:03,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267332770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:58:03,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:58:03,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:58:03,878 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902643080] [2024-11-13 15:58:03,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:58:03,879 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:58:03,879 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:58:03,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:58:03,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:58:03,888 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2024-11-13 15:58:03,888 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 63 transitions, 294 flow. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:58:03,888 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:58:03,888 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2024-11-13 15:58:03,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:58:04,136 INFO L124 PetriNetUnfolderBase]: 651/1255 cut-off events. [2024-11-13 15:58:04,136 INFO L125 PetriNetUnfolderBase]: For 1955/1955 co-relation queries the response was YES. [2024-11-13 15:58:04,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3573 conditions, 1255 events. 651/1255 cut-off events. For 1955/1955 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 6343 event pairs, 77 based on Foata normal form. 8/1261 useless extension candidates. Maximal degree in co-relation 3384. Up to 938 conditions per place. [2024-11-13 15:58:04,144 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 69 selfloop transitions, 2 changer transitions 0/76 dead transitions. [2024-11-13 15:58:04,144 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 76 transitions, 518 flow [2024-11-13 15:58:04,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:58:04,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:58:04,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 98 transitions. [2024-11-13 15:58:04,146 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5444444444444444 [2024-11-13 15:58:04,146 INFO L175 Difference]: Start difference. First operand has 67 places, 63 transitions, 294 flow. Second operand 4 states and 98 transitions. [2024-11-13 15:58:04,146 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 76 transitions, 518 flow [2024-11-13 15:58:04,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 76 transitions, 501 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-13 15:58:04,151 INFO L231 Difference]: Finished difference. Result has 65 places, 62 transitions, 285 flow [2024-11-13 15:58:04,151 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=281, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=285, PETRI_PLACES=65, PETRI_TRANSITIONS=62} [2024-11-13 15:58:04,152 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 22 predicate places. [2024-11-13 15:58:04,152 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 62 transitions, 285 flow [2024-11-13 15:58:04,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:58:04,152 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 15:58:04,152 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:58:04,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 15:58:04,152 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (and 13 more)] === [2024-11-13 15:58:04,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:58:04,153 INFO L85 PathProgramCache]: Analyzing trace with hash -958942680, now seen corresponding path program 1 times [2024-11-13 15:58:04,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:58:04,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995916175] [2024-11-13 15:58:04,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:58:04,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:58:04,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:58:04,301 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-13 15:58:04,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:58:04,301 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995916175] [2024-11-13 15:58:04,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995916175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:58:04,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:58:04,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:58:04,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409492428] [2024-11-13 15:58:04,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:58:04,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:58:04,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:58:04,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:58:04,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:58:04,311 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 45 [2024-11-13 15:58:04,311 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 62 transitions, 285 flow. Second operand has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:58:04,311 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 15:58:04,312 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 45 [2024-11-13 15:58:04,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 15:58:04,559 INFO L124 PetriNetUnfolderBase]: 651/1247 cut-off events. [2024-11-13 15:58:04,560 INFO L125 PetriNetUnfolderBase]: For 1727/1727 co-relation queries the response was YES. [2024-11-13 15:58:04,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3527 conditions, 1247 events. 651/1247 cut-off events. For 1727/1727 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 6257 event pairs, 77 based on Foata normal form. 8/1253 useless extension candidates. Maximal degree in co-relation 1983. Up to 930 conditions per place. [2024-11-13 15:58:04,564 INFO L140 encePairwiseOnDemand]: 42/45 looper letters, 0 selfloop transitions, 0 changer transitions 75/75 dead transitions. [2024-11-13 15:58:04,564 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 75 transitions, 501 flow [2024-11-13 15:58:04,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:58:04,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-13 15:58:04,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 97 transitions. [2024-11-13 15:58:04,565 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5388888888888889 [2024-11-13 15:58:04,565 INFO L175 Difference]: Start difference. First operand has 65 places, 62 transitions, 285 flow. Second operand 4 states and 97 transitions. [2024-11-13 15:58:04,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 75 transitions, 501 flow [2024-11-13 15:58:04,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 75 transitions, 500 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 15:58:04,569 INFO L231 Difference]: Finished difference. Result has 66 places, 0 transitions, 0 flow [2024-11-13 15:58:04,570 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=66, PETRI_TRANSITIONS=0} [2024-11-13 15:58:04,570 INFO L277 CegarLoopForPetriNet]: 43 programPoint places, 23 predicate places. [2024-11-13 15:58:04,570 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 0 transitions, 0 flow [2024-11-13 15:58:04,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.5) internal successors, (82), 4 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:58:04,573 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 16 remaining) [2024-11-13 15:58:04,574 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 16 remaining) [2024-11-13 15:58:04,574 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 16 remaining) [2024-11-13 15:58:04,574 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 16 remaining) [2024-11-13 15:58:04,574 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 16 remaining) [2024-11-13 15:58:04,574 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 16 remaining) [2024-11-13 15:58:04,575 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 16 remaining) [2024-11-13 15:58:04,575 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 16 remaining) [2024-11-13 15:58:04,575 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 16 remaining) [2024-11-13 15:58:04,575 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 16 remaining) [2024-11-13 15:58:04,575 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 16 remaining) [2024-11-13 15:58:04,575 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 16 remaining) [2024-11-13 15:58:04,575 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 16 remaining) [2024-11-13 15:58:04,576 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 16 remaining) [2024-11-13 15:58:04,576 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 16 remaining) [2024-11-13 15:58:04,576 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 16 remaining) [2024-11-13 15:58:04,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 15:58:04,576 INFO L407 BasicCegarLoop]: Path program histogram: [3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:58:04,583 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 15:58:04,583 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 15:58:04,589 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 03:58:04 BasicIcfg [2024-11-13 15:58:04,589 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 15:58:04,590 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:58:04,590 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:58:04,590 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:58:04,591 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:57:50" (3/4) ... [2024-11-13 15:58:04,593 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 15:58:04,596 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-13 15:58:04,596 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-13 15:58:04,602 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 109 nodes and edges [2024-11-13 15:58:04,602 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2024-11-13 15:58:04,603 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-13 15:58:04,603 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-13 15:58:04,710 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 15:58:04,710 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 15:58:04,710 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:58:04,711 INFO L158 Benchmark]: Toolchain (without parser) took 16197.22ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 118.8MB in the beginning and 217.2MB in the end (delta: -98.4MB). Peak memory consumption was 185.4MB. Max. memory is 16.1GB. [2024-11-13 15:58:04,712 INFO L158 Benchmark]: CDTParser took 1.54ms. Allocated memory is still 142.6MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:58:04,712 INFO L158 Benchmark]: CACSL2BoogieTranslator took 378.60ms. Allocated memory is still 142.6MB. Free memory was 118.5MB in the beginning and 106.7MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:58:04,712 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.35ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 104.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:58:04,713 INFO L158 Benchmark]: Boogie Preprocessor took 69.06ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 102.9MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:58:04,713 INFO L158 Benchmark]: RCFGBuilder took 1005.72ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 108.5MB in the end (delta: -5.6MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. [2024-11-13 15:58:04,715 INFO L158 Benchmark]: TraceAbstraction took 14565.46ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 107.9MB in the beginning and 225.6MB in the end (delta: -117.7MB). Peak memory consumption was 171.6MB. Max. memory is 16.1GB. [2024-11-13 15:58:04,716 INFO L158 Benchmark]: Witness Printer took 120.71ms. Allocated memory is still 427.8MB. Free memory was 225.6MB in the beginning and 217.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 15:58:04,718 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.54ms. Allocated memory is still 142.6MB. Free memory is still 79.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 378.60ms. Allocated memory is still 142.6MB. Free memory was 118.5MB in the beginning and 106.7MB in the end (delta: 11.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.35ms. Allocated memory is still 142.6MB. Free memory was 106.7MB in the beginning and 104.8MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 69.06ms. Allocated memory is still 142.6MB. Free memory was 104.8MB in the beginning and 102.9MB in the end (delta: 2.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 1005.72ms. Allocated memory is still 142.6MB. Free memory was 102.9MB in the beginning and 108.5MB in the end (delta: -5.6MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. * TraceAbstraction took 14565.46ms. Allocated memory was 142.6MB in the beginning and 427.8MB in the end (delta: 285.2MB). Free memory was 107.9MB in the beginning and 225.6MB in the end (delta: -117.7MB). Peak memory consumption was 171.6MB. Max. memory is 16.1GB. * Witness Printer took 120.71ms. Allocated memory is still 427.8MB. Free memory was 225.6MB in the beginning and 217.2MB in the end (delta: 8.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 56]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 72]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 103]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 92]: 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 5 procedures, 60 locations, 16 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: 14.4s, OverallIterations: 20, TraceHistogramMax: 5, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 7.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 673 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 606 mSDsluCounter, 157 SdHoareTripleChecker+Invalid, 2.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 123 mSDsCounter, 159 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2412 IncrementalHoareTripleChecker+Invalid, 2571 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 159 mSolverCounterUnsat, 34 mSDtfsCounter, 2412 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 342 GetRequests, 212 SyntacticMatches, 5 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=352occurred in iteration=7, InterpolantAutomatonStates: 109, 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: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 3.9s InterpolantComputationTime, 776 NumberOfCodeBlocks, 740 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 816 ConstructedInterpolants, 0 QuantifiedInterpolants, 1430 SizeOfPredicates, 17 NumberOfNonLiveVariables, 1017 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 31 InterpolantComputations, 16 PerfectInterpolantSequences, 1030/1132 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 10 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-13 15:58:04,760 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_acd87b57-75e3-4cdf-aabe-f4aca8c4cf0f/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