./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/weaver/parallel-bakery-2.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_ad091eb0-948e-403a-b578-6f71e06a541c/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad091eb0-948e-403a-b578-6f71e06a541c/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_ad091eb0-948e-403a-b578-6f71e06a541c/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad091eb0-948e-403a-b578-6f71e06a541c/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad091eb0-948e-403a-b578-6f71e06a541c/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_ad091eb0-948e-403a-b578-6f71e06a541c/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 4f539592bc69a174492e01050b581a78ee6bfd25c2e79dba974730b39e2fa54b --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:47:53,537 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:47:53,615 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad091eb0-948e-403a-b578-6f71e06a541c/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-13 12:47:53,623 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:47:53,623 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:47:53,656 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:47:53,657 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:47:53,657 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:47:53,657 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 12:47:53,658 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 12:47:53,658 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:47:53,658 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:47:53,658 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:47:53,658 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:47:53,658 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:47:53,659 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:47:53,659 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 12:47:53,659 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 12:47:53,659 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:47:53,659 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 12:47:53,659 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:47:53,659 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 12:47:53,659 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:47:53,659 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 12:47:53,660 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:47:53,660 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-13 12:47:53,660 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-13 12:47:53,660 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 12:47:53,660 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 12:47:53,660 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:47:53,660 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:47:53,660 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:47:53,661 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 12:47:53,661 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:47:53,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:47:53,661 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:47:53,661 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:47:53,661 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 12:47:53,661 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 12:47:53,661 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 12:47:53,661 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:47:53,661 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 12:47:53,662 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 12:47:53,662 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 12:47:53,662 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_ad091eb0-948e-403a-b578-6f71e06a541c/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 -> 4f539592bc69a174492e01050b581a78ee6bfd25c2e79dba974730b39e2fa54b [2024-11-13 12:47:53,975 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:47:53,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:47:53,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:47:53,986 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:47:53,987 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:47:53,988 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad091eb0-948e-403a-b578-6f71e06a541c/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c Unable to find full path for "g++" [2024-11-13 12:47:55,889 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:47:56,208 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:47:56,209 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad091eb0-948e-403a-b578-6f71e06a541c/sv-benchmarks/c/weaver/parallel-bakery-2.wvr.c [2024-11-13 12:47:56,218 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad091eb0-948e-403a-b578-6f71e06a541c/bin/uautomizer-verify-qhAvR1uOyd/data/9e4ea2023/0754320d709b42828cb1f943ef584ef0/FLAG1256b2776 [2024-11-13 12:47:56,473 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad091eb0-948e-403a-b578-6f71e06a541c/bin/uautomizer-verify-qhAvR1uOyd/data/9e4ea2023/0754320d709b42828cb1f943ef584ef0 [2024-11-13 12:47:56,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:47:56,477 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:47:56,478 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:47:56,478 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:47:56,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:47:56,484 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:47:56" (1/1) ... [2024-11-13 12:47:56,485 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a2476f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:56, skipping insertion in model container [2024-11-13 12:47:56,485 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:47:56" (1/1) ... [2024-11-13 12:47:56,502 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:47:56,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:47:56,703 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:47:56,734 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:47:56,757 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:47:56,757 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:56 WrapperNode [2024-11-13 12:47:56,758 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:47:56,759 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:47:56,760 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:47:56,760 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:47:56,770 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:56" (1/1) ... [2024-11-13 12:47:56,776 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:56" (1/1) ... [2024-11-13 12:47:56,805 INFO L138 Inliner]: procedures = 18, calls = 15, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 149 [2024-11-13 12:47:56,809 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:47:56,810 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:47:56,812 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:47:56,813 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:47:56,821 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:56" (1/1) ... [2024-11-13 12:47:56,822 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:56" (1/1) ... [2024-11-13 12:47:56,828 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:56" (1/1) ... [2024-11-13 12:47:56,849 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 12:47:56,852 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:56" (1/1) ... [2024-11-13 12:47:56,853 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:56" (1/1) ... [2024-11-13 12:47:56,856 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:56" (1/1) ... [2024-11-13 12:47:56,862 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:56" (1/1) ... [2024-11-13 12:47:56,863 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:56" (1/1) ... [2024-11-13 12:47:56,867 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:56" (1/1) ... [2024-11-13 12:47:56,869 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:47:56,870 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:47:56,870 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:47:56,870 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:47:56,875 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:56" (1/1) ... [2024-11-13 12:47:56,879 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:47:56,891 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad091eb0-948e-403a-b578-6f71e06a541c/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:56,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad091eb0-948e-403a-b578-6f71e06a541c/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 12:47:56,916 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad091eb0-948e-403a-b578-6f71e06a541c/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 12:47:56,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 12:47:56,942 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-13 12:47:56,942 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-13 12:47:56,942 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-13 12:47:56,942 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-13 12:47:56,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 12:47:56,942 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:47:56,942 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:47:56,943 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 12:47:57,047 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:47:57,049 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 12:47:57,372 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-13 12:47:57,373 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 12:47:57,534 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 12:47:57,535 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-13 12:47:57,535 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:47:57 BoogieIcfgContainer [2024-11-13 12:47:57,535 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 12:47:57,541 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 12:47:57,541 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 12:47:57,548 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 12:47:57,549 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:47:56" (1/3) ... [2024-11-13 12:47:57,549 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e6469c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:47:57, skipping insertion in model container [2024-11-13 12:47:57,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:47:56" (2/3) ... [2024-11-13 12:47:57,550 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36e6469c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:47:57, skipping insertion in model container [2024-11-13 12:47:57,550 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:47:57" (3/3) ... [2024-11-13 12:47:57,552 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-2.wvr.c [2024-11-13 12:47:57,571 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 12:47:57,574 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG parallel-bakery-2.wvr.c that has 3 procedures, 63 locations, 1 initial locations, 0 loop locations, and 8 error locations. [2024-11-13 12:47:57,574 INFO L492 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-13 12:47:57,672 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-13 12:47:57,719 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 69 places, 64 transitions, 142 flow [2024-11-13 12:47:57,773 INFO L124 PetriNetUnfolderBase]: 2/62 cut-off events. [2024-11-13 12:47:57,777 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-13 12:47:57,781 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71 conditions, 62 events. 2/62 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 69 event pairs, 0 based on Foata normal form. 0/52 useless extension candidates. Maximal degree in co-relation 45. Up to 2 conditions per place. [2024-11-13 12:47:57,781 INFO L82 GeneralOperation]: Start removeDead. Operand has 69 places, 64 transitions, 142 flow [2024-11-13 12:47:57,785 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 65 places, 60 transitions, 129 flow [2024-11-13 12:47:57,800 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 12:47:57,829 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;@2c3f3aa8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:47:57,833 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-13 12:47:57,849 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-13 12:47:57,849 INFO L124 PetriNetUnfolderBase]: 1/27 cut-off events. [2024-11-13 12:47:57,850 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-13 12:47:57,850 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:47:57,850 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:47:57,852 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 12:47:57,857 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:57,858 INFO L85 PathProgramCache]: Analyzing trace with hash -850074253, now seen corresponding path program 1 times [2024-11-13 12:47:57,866 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:57,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651116057] [2024-11-13 12:47:57,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:57,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:57,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:58,244 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 12:47:58,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:47:58,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651116057] [2024-11-13 12:47:58,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1651116057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:58,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:58,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:47:58,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232358608] [2024-11-13 12:47:58,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:58,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:47:58,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:47:58,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:47:58,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:47:58,313 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 64 [2024-11-13 12:47:58,315 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 60 transitions, 129 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 12:47:58,315 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:47:58,318 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 64 [2024-11-13 12:47:58,318 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:47:58,594 INFO L124 PetriNetUnfolderBase]: 260/688 cut-off events. [2024-11-13 12:47:58,594 INFO L125 PetriNetUnfolderBase]: For 17/17 co-relation queries the response was YES. [2024-11-13 12:47:58,597 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1169 conditions, 688 events. 260/688 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 4267 event pairs, 138 based on Foata normal form. 0/494 useless extension candidates. Maximal degree in co-relation 1104. Up to 293 conditions per place. [2024-11-13 12:47:58,604 INFO L140 encePairwiseOnDemand]: 57/64 looper letters, 35 selfloop transitions, 6 changer transitions 0/73 dead transitions. [2024-11-13 12:47:58,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 73 transitions, 240 flow [2024-11-13 12:47:58,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:47:58,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 12:47:58,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 144 transitions. [2024-11-13 12:47:58,622 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-11-13 12:47:58,624 INFO L175 Difference]: Start difference. First operand has 65 places, 60 transitions, 129 flow. Second operand 3 states and 144 transitions. [2024-11-13 12:47:58,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 73 transitions, 240 flow [2024-11-13 12:47:58,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 73 transitions, 234 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-13 12:47:58,642 INFO L231 Difference]: Finished difference. Result has 66 places, 62 transitions, 158 flow [2024-11-13 12:47:58,644 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=66, PETRI_TRANSITIONS=62} [2024-11-13 12:47:58,651 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 1 predicate places. [2024-11-13 12:47:58,651 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 62 transitions, 158 flow [2024-11-13 12:47:58,652 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 12:47:58,653 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:47:58,653 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:47:58,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 12:47:58,653 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 12:47:58,654 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:58,654 INFO L85 PathProgramCache]: Analyzing trace with hash -582498681, now seen corresponding path program 1 times [2024-11-13 12:47:58,654 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:58,654 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [14958114] [2024-11-13 12:47:58,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:58,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:58,844 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 12:47:58,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:47:58,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [14958114] [2024-11-13 12:47:58,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [14958114] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:58,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:58,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:47:58,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778122232] [2024-11-13 12:47:58,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:58,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:47:58,847 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:47:58,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:47:58,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:47:58,888 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 64 [2024-11-13 12:47:58,889 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 62 transitions, 158 flow. Second operand has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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 12:47:58,889 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:47:58,889 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 64 [2024-11-13 12:47:58,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:47:59,216 INFO L124 PetriNetUnfolderBase]: 464/1144 cut-off events. [2024-11-13 12:47:59,216 INFO L125 PetriNetUnfolderBase]: For 117/117 co-relation queries the response was YES. [2024-11-13 12:47:59,221 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2122 conditions, 1144 events. 464/1144 cut-off events. For 117/117 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 7311 event pairs, 54 based on Foata normal form. 0/908 useless extension candidates. Maximal degree in co-relation 1847. Up to 357 conditions per place. [2024-11-13 12:47:59,229 INFO L140 encePairwiseOnDemand]: 53/64 looper letters, 55 selfloop transitions, 13 changer transitions 0/94 dead transitions. [2024-11-13 12:47:59,229 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 94 transitions, 368 flow [2024-11-13 12:47:59,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:47:59,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 12:47:59,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 208 transitions. [2024-11-13 12:47:59,233 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65 [2024-11-13 12:47:59,233 INFO L175 Difference]: Start difference. First operand has 66 places, 62 transitions, 158 flow. Second operand 5 states and 208 transitions. [2024-11-13 12:47:59,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 94 transitions, 368 flow [2024-11-13 12:47:59,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 94 transitions, 356 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 12:47:59,241 INFO L231 Difference]: Finished difference. Result has 72 places, 71 transitions, 238 flow [2024-11-13 12:47:59,243 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=238, PETRI_PLACES=72, PETRI_TRANSITIONS=71} [2024-11-13 12:47:59,243 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 7 predicate places. [2024-11-13 12:47:59,244 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 71 transitions, 238 flow [2024-11-13 12:47:59,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.0) internal successors, (128), 4 states have internal predecessors, (128), 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 12:47:59,244 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:47:59,244 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:47:59,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 12:47:59,245 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 12:47:59,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:59,246 INFO L85 PathProgramCache]: Analyzing trace with hash -850074252, now seen corresponding path program 1 times [2024-11-13 12:47:59,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:59,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524597699] [2024-11-13 12:47:59,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:59,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:59,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:59,375 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 12:47:59,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:47:59,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524597699] [2024-11-13 12:47:59,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524597699] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:59,376 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:59,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:47:59,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825216412] [2024-11-13 12:47:59,377 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:59,377 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:47:59,377 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:47:59,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:47:59,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:47:59,391 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 64 [2024-11-13 12:47:59,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 71 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 12:47:59,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:47:59,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 64 [2024-11-13 12:47:59,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:47:59,627 INFO L124 PetriNetUnfolderBase]: 305/885 cut-off events. [2024-11-13 12:47:59,627 INFO L125 PetriNetUnfolderBase]: For 513/536 co-relation queries the response was YES. [2024-11-13 12:47:59,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1790 conditions, 885 events. 305/885 cut-off events. For 513/536 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 5987 event pairs, 98 based on Foata normal form. 26/723 useless extension candidates. Maximal degree in co-relation 1451. Up to 262 conditions per place. [2024-11-13 12:47:59,638 INFO L140 encePairwiseOnDemand]: 56/64 looper letters, 35 selfloop transitions, 10 changer transitions 0/81 dead transitions. [2024-11-13 12:47:59,639 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 81 transitions, 356 flow [2024-11-13 12:47:59,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:47:59,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 12:47:59,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 141 transitions. [2024-11-13 12:47:59,643 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.734375 [2024-11-13 12:47:59,643 INFO L175 Difference]: Start difference. First operand has 72 places, 71 transitions, 238 flow. Second operand 3 states and 141 transitions. [2024-11-13 12:47:59,643 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 81 transitions, 356 flow [2024-11-13 12:47:59,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 81 transitions, 354 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-13 12:47:59,651 INFO L231 Difference]: Finished difference. Result has 75 places, 71 transitions, 266 flow [2024-11-13 12:47:59,652 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=266, PETRI_PLACES=75, PETRI_TRANSITIONS=71} [2024-11-13 12:47:59,652 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 10 predicate places. [2024-11-13 12:47:59,652 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 71 transitions, 266 flow [2024-11-13 12:47:59,653 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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 12:47:59,653 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:47:59,653 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:47:59,653 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 12:47:59,653 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 12:47:59,655 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:59,655 INFO L85 PathProgramCache]: Analyzing trace with hash -195996117, now seen corresponding path program 1 times [2024-11-13 12:47:59,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:59,655 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [974128964] [2024-11-13 12:47:59,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:59,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:59,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:59,786 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 12:47:59,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:47:59,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [974128964] [2024-11-13 12:47:59,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [974128964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:59,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:59,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:47:59,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623322473] [2024-11-13 12:47:59,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:59,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:47:59,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:47:59,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:47:59,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:47:59,809 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 64 [2024-11-13 12:47:59,809 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 71 transitions, 266 flow. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 12:47:59,809 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:47:59,809 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 64 [2024-11-13 12:47:59,810 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:48:00,072 INFO L124 PetriNetUnfolderBase]: 346/1064 cut-off events. [2024-11-13 12:48:00,072 INFO L125 PetriNetUnfolderBase]: For 551/590 co-relation queries the response was YES. [2024-11-13 12:48:00,079 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2173 conditions, 1064 events. 346/1064 cut-off events. For 551/590 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 7989 event pairs, 196 based on Foata normal form. 3/835 useless extension candidates. Maximal degree in co-relation 1220. Up to 375 conditions per place. [2024-11-13 12:48:00,084 INFO L140 encePairwiseOnDemand]: 57/64 looper letters, 39 selfloop transitions, 8 changer transitions 0/84 dead transitions. [2024-11-13 12:48:00,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 84 transitions, 407 flow [2024-11-13 12:48:00,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:48:00,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 12:48:00,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 143 transitions. [2024-11-13 12:48:00,087 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7447916666666666 [2024-11-13 12:48:00,087 INFO L175 Difference]: Start difference. First operand has 75 places, 71 transitions, 266 flow. Second operand 3 states and 143 transitions. [2024-11-13 12:48:00,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 84 transitions, 407 flow [2024-11-13 12:48:00,094 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 84 transitions, 395 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 12:48:00,096 INFO L231 Difference]: Finished difference. Result has 78 places, 73 transitions, 298 flow [2024-11-13 12:48:00,096 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=78, PETRI_TRANSITIONS=73} [2024-11-13 12:48:00,097 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 13 predicate places. [2024-11-13 12:48:00,097 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 73 transitions, 298 flow [2024-11-13 12:48:00,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 12:48:00,098 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:48:00,098 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:48:00,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 12:48:00,098 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 12:48:00,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:00,099 INFO L85 PathProgramCache]: Analyzing trace with hash -195996116, now seen corresponding path program 1 times [2024-11-13 12:48:00,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:48:00,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795219515] [2024-11-13 12:48:00,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:00,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:48:00,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:00,217 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 12:48:00,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:48:00,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795219515] [2024-11-13 12:48:00,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795219515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:48:00,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:48:00,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:48:00,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519593172] [2024-11-13 12:48:00,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:48:00,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:48:00,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:48:00,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:48:00,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:48:00,232 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 64 [2024-11-13 12:48:00,232 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 73 transitions, 298 flow. Second operand has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 12:48:00,232 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:48:00,232 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 64 [2024-11-13 12:48:00,233 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:48:00,467 INFO L124 PetriNetUnfolderBase]: 329/1055 cut-off events. [2024-11-13 12:48:00,468 INFO L125 PetriNetUnfolderBase]: For 716/751 co-relation queries the response was YES. [2024-11-13 12:48:00,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2260 conditions, 1055 events. 329/1055 cut-off events. For 716/751 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 8031 event pairs, 130 based on Foata normal form. 8/873 useless extension candidates. Maximal degree in co-relation 1248. Up to 319 conditions per place. [2024-11-13 12:48:00,478 INFO L140 encePairwiseOnDemand]: 56/64 looper letters, 33 selfloop transitions, 12 changer transitions 0/82 dead transitions. [2024-11-13 12:48:00,478 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 82 transitions, 423 flow [2024-11-13 12:48:00,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:48:00,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-13 12:48:00,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2024-11-13 12:48:00,479 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7291666666666666 [2024-11-13 12:48:00,479 INFO L175 Difference]: Start difference. First operand has 78 places, 73 transitions, 298 flow. Second operand 3 states and 140 transitions. [2024-11-13 12:48:00,479 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 82 transitions, 423 flow [2024-11-13 12:48:00,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 82 transitions, 407 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 12:48:00,488 INFO L231 Difference]: Finished difference. Result has 79 places, 73 transitions, 322 flow [2024-11-13 12:48:00,489 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=278, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=79, PETRI_TRANSITIONS=73} [2024-11-13 12:48:00,491 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 14 predicate places. [2024-11-13 12:48:00,491 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 73 transitions, 322 flow [2024-11-13 12:48:00,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.666666666666664) internal successors, (116), 3 states have internal predecessors, (116), 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 12:48:00,491 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:48:00,491 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:48:00,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 12:48:00,492 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 12:48:00,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:00,494 INFO L85 PathProgramCache]: Analyzing trace with hash -1780912926, now seen corresponding path program 1 times [2024-11-13 12:48:00,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:48:00,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887159505] [2024-11-13 12:48:00,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:00,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:48:00,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:00,577 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 12:48:00,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:48:00,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887159505] [2024-11-13 12:48:00,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887159505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:48:00,577 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:48:00,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:48:00,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540937938] [2024-11-13 12:48:00,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:48:00,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:48:00,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:48:00,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:48:00,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:48:00,607 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 64 [2024-11-13 12:48:00,608 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 73 transitions, 322 flow. Second operand has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:48:00,608 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:48:00,608 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 64 [2024-11-13 12:48:00,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:48:00,880 INFO L124 PetriNetUnfolderBase]: 341/1014 cut-off events. [2024-11-13 12:48:00,880 INFO L125 PetriNetUnfolderBase]: For 1255/1279 co-relation queries the response was YES. [2024-11-13 12:48:00,883 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2334 conditions, 1014 events. 341/1014 cut-off events. For 1255/1279 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 7118 event pairs, 47 based on Foata normal form. 8/888 useless extension candidates. Maximal degree in co-relation 2083. Up to 337 conditions per place. [2024-11-13 12:48:00,888 INFO L140 encePairwiseOnDemand]: 53/64 looper letters, 60 selfloop transitions, 13 changer transitions 0/101 dead transitions. [2024-11-13 12:48:00,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 101 transitions, 585 flow [2024-11-13 12:48:00,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:48:00,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 12:48:00,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 201 transitions. [2024-11-13 12:48:00,889 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.628125 [2024-11-13 12:48:00,889 INFO L175 Difference]: Start difference. First operand has 79 places, 73 transitions, 322 flow. Second operand 5 states and 201 transitions. [2024-11-13 12:48:00,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 101 transitions, 585 flow [2024-11-13 12:48:00,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 101 transitions, 571 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 12:48:00,897 INFO L231 Difference]: Finished difference. Result has 86 places, 80 transitions, 404 flow [2024-11-13 12:48:00,897 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=404, PETRI_PLACES=86, PETRI_TRANSITIONS=80} [2024-11-13 12:48:00,897 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 21 predicate places. [2024-11-13 12:48:00,898 INFO L471 AbstractCegarLoop]: Abstraction has has 86 places, 80 transitions, 404 flow [2024-11-13 12:48:00,898 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.5) internal successors, (130), 4 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:48:00,898 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:48:00,898 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:48:00,898 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 12:48:00,898 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 12:48:00,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:00,901 INFO L85 PathProgramCache]: Analyzing trace with hash 171383401, now seen corresponding path program 1 times [2024-11-13 12:48:00,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:48:00,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704086505] [2024-11-13 12:48:00,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:00,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:48:00,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:01,012 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 12:48:01,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:48:01,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704086505] [2024-11-13 12:48:01,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704086505] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:48:01,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:48:01,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:48:01,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [447898953] [2024-11-13 12:48:01,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:48:01,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:48:01,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:48:01,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:48:01,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:48:01,039 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 64 [2024-11-13 12:48:01,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 80 transitions, 404 flow. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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 12:48:01,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:48:01,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 64 [2024-11-13 12:48:01,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:48:01,395 INFO L124 PetriNetUnfolderBase]: 633/1499 cut-off events. [2024-11-13 12:48:01,395 INFO L125 PetriNetUnfolderBase]: For 1640/1670 co-relation queries the response was YES. [2024-11-13 12:48:01,400 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3790 conditions, 1499 events. 633/1499 cut-off events. For 1640/1670 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 10547 event pairs, 106 based on Foata normal form. 65/1467 useless extension candidates. Maximal degree in co-relation 2338. Up to 415 conditions per place. [2024-11-13 12:48:01,408 INFO L140 encePairwiseOnDemand]: 55/64 looper letters, 57 selfloop transitions, 9 changer transitions 3/109 dead transitions. [2024-11-13 12:48:01,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 109 transitions, 644 flow [2024-11-13 12:48:01,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:48:01,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 12:48:01,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 211 transitions. [2024-11-13 12:48:01,410 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.659375 [2024-11-13 12:48:01,410 INFO L175 Difference]: Start difference. First operand has 86 places, 80 transitions, 404 flow. Second operand 5 states and 211 transitions. [2024-11-13 12:48:01,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 109 transitions, 644 flow [2024-11-13 12:48:01,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 109 transitions, 642 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-13 12:48:01,422 INFO L231 Difference]: Finished difference. Result has 94 places, 84 transitions, 456 flow [2024-11-13 12:48:01,425 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=402, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=456, PETRI_PLACES=94, PETRI_TRANSITIONS=84} [2024-11-13 12:48:01,426 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 29 predicate places. [2024-11-13 12:48:01,426 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 84 transitions, 456 flow [2024-11-13 12:48:01,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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 12:48:01,426 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:48:01,426 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:48:01,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 12:48:01,426 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 12:48:01,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:01,427 INFO L85 PathProgramCache]: Analyzing trace with hash 1017918552, now seen corresponding path program 1 times [2024-11-13 12:48:01,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:48:01,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049125746] [2024-11-13 12:48:01,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:01,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:48:01,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:01,521 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 12:48:01,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:48:01,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049125746] [2024-11-13 12:48:01,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049125746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:48:01,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:48:01,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:48:01,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439364155] [2024-11-13 12:48:01,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:48:01,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:48:01,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:48:01,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:48:01,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:48:01,546 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 64 [2024-11-13 12:48:01,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 84 transitions, 456 flow. Second operand has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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 12:48:01,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:48:01,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 64 [2024-11-13 12:48:01,547 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:48:01,846 INFO L124 PetriNetUnfolderBase]: 539/1357 cut-off events. [2024-11-13 12:48:01,846 INFO L125 PetriNetUnfolderBase]: For 2046/2096 co-relation queries the response was YES. [2024-11-13 12:48:01,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3860 conditions, 1357 events. 539/1357 cut-off events. For 2046/2096 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 9574 event pairs, 127 based on Foata normal form. 79/1352 useless extension candidates. Maximal degree in co-relation 2583. Up to 356 conditions per place. [2024-11-13 12:48:01,856 INFO L140 encePairwiseOnDemand]: 55/64 looper letters, 63 selfloop transitions, 8 changer transitions 2/113 dead transitions. [2024-11-13 12:48:01,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 113 transitions, 731 flow [2024-11-13 12:48:01,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:48:01,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 12:48:01,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 214 transitions. [2024-11-13 12:48:01,858 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.66875 [2024-11-13 12:48:01,858 INFO L175 Difference]: Start difference. First operand has 94 places, 84 transitions, 456 flow. Second operand 5 states and 214 transitions. [2024-11-13 12:48:01,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 113 transitions, 731 flow [2024-11-13 12:48:01,869 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 113 transitions, 726 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-13 12:48:01,871 INFO L231 Difference]: Finished difference. Result has 98 places, 83 transitions, 469 flow [2024-11-13 12:48:01,872 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=447, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=469, PETRI_PLACES=98, PETRI_TRANSITIONS=83} [2024-11-13 12:48:01,874 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 33 predicate places. [2024-11-13 12:48:01,874 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 83 transitions, 469 flow [2024-11-13 12:48:01,875 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.0) internal successors, (136), 4 states have internal predecessors, (136), 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 12:48:01,875 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:48:01,875 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:48:01,875 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 12:48:01,877 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 12:48:01,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:01,877 INFO L85 PathProgramCache]: Analyzing trace with hash 983537605, now seen corresponding path program 1 times [2024-11-13 12:48:01,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:48:01,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148684398] [2024-11-13 12:48:01,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:01,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:48:01,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:01,947 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 12:48:01,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:48:01,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148684398] [2024-11-13 12:48:01,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148684398] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:48:01,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:48:01,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:48:01,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320169103] [2024-11-13 12:48:01,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:48:01,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:48:01,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:48:01,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:48:01,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:48:01,976 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 64 [2024-11-13 12:48:01,976 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 83 transitions, 469 flow. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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 12:48:01,977 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:48:01,977 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 64 [2024-11-13 12:48:01,977 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:48:02,302 INFO L124 PetriNetUnfolderBase]: 645/1564 cut-off events. [2024-11-13 12:48:02,303 INFO L125 PetriNetUnfolderBase]: For 2486/2568 co-relation queries the response was YES. [2024-11-13 12:48:02,308 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4493 conditions, 1564 events. 645/1564 cut-off events. For 2486/2568 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 11181 event pairs, 115 based on Foata normal form. 114/1612 useless extension candidates. Maximal degree in co-relation 2927. Up to 382 conditions per place. [2024-11-13 12:48:02,315 INFO L140 encePairwiseOnDemand]: 55/64 looper letters, 57 selfloop transitions, 10 changer transitions 3/111 dead transitions. [2024-11-13 12:48:02,315 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 111 transitions, 720 flow [2024-11-13 12:48:02,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:48:02,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 12:48:02,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 211 transitions. [2024-11-13 12:48:02,316 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.659375 [2024-11-13 12:48:02,316 INFO L175 Difference]: Start difference. First operand has 98 places, 83 transitions, 469 flow. Second operand 5 states and 211 transitions. [2024-11-13 12:48:02,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 111 transitions, 720 flow [2024-11-13 12:48:02,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 111 transitions, 692 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-13 12:48:02,331 INFO L231 Difference]: Finished difference. Result has 102 places, 87 transitions, 510 flow [2024-11-13 12:48:02,331 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=446, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=510, PETRI_PLACES=102, PETRI_TRANSITIONS=87} [2024-11-13 12:48:02,333 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 37 predicate places. [2024-11-13 12:48:02,333 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 87 transitions, 510 flow [2024-11-13 12:48:02,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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 12:48:02,333 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:48:02,333 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:48:02,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 12:48:02,334 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 12:48:02,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:02,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1093917847, now seen corresponding path program 1 times [2024-11-13 12:48:02,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:48:02,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1811981515] [2024-11-13 12:48:02,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:02,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:48:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:02,464 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 12:48:02,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:48:02,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1811981515] [2024-11-13 12:48:02,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1811981515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:48:02,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:48:02,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:48:02,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185000848] [2024-11-13 12:48:02,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:48:02,465 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:48:02,465 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:48:02,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:48:02,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:48:02,536 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 64 [2024-11-13 12:48:02,537 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 87 transitions, 510 flow. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 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 12:48:02,537 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:48:02,537 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 64 [2024-11-13 12:48:02,537 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:48:02,942 INFO L124 PetriNetUnfolderBase]: 506/1452 cut-off events. [2024-11-13 12:48:02,942 INFO L125 PetriNetUnfolderBase]: For 2997/3055 co-relation queries the response was YES. [2024-11-13 12:48:02,947 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4320 conditions, 1452 events. 506/1452 cut-off events. For 2997/3055 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 10623 event pairs, 60 based on Foata normal form. 47/1454 useless extension candidates. Maximal degree in co-relation 3961. Up to 252 conditions per place. [2024-11-13 12:48:02,952 INFO L140 encePairwiseOnDemand]: 51/64 looper letters, 69 selfloop transitions, 41 changer transitions 3/148 dead transitions. [2024-11-13 12:48:02,952 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 148 transitions, 1019 flow [2024-11-13 12:48:02,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 12:48:02,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-13 12:48:02,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 433 transitions. [2024-11-13 12:48:02,956 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5638020833333334 [2024-11-13 12:48:02,957 INFO L175 Difference]: Start difference. First operand has 102 places, 87 transitions, 510 flow. Second operand 12 states and 433 transitions. [2024-11-13 12:48:02,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 148 transitions, 1019 flow [2024-11-13 12:48:02,967 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 148 transitions, 1012 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-13 12:48:02,970 INFO L231 Difference]: Finished difference. Result has 112 places, 103 transitions, 716 flow [2024-11-13 12:48:02,970 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=716, PETRI_PLACES=112, PETRI_TRANSITIONS=103} [2024-11-13 12:48:02,971 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 47 predicate places. [2024-11-13 12:48:02,971 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 103 transitions, 716 flow [2024-11-13 12:48:02,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 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 12:48:02,972 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:48:02,972 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:48:02,972 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 12:48:02,972 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 12:48:02,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:02,973 INFO L85 PathProgramCache]: Analyzing trace with hash -973449390, now seen corresponding path program 1 times [2024-11-13 12:48:02,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:48:02,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124554347] [2024-11-13 12:48:02,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:02,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:48:02,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:03,114 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 12:48:03,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:48:03,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124554347] [2024-11-13 12:48:03,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124554347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:48:03,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:48:03,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:48:03,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677916508] [2024-11-13 12:48:03,116 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:48:03,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:48:03,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:48:03,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:48:03,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:48:03,177 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 64 [2024-11-13 12:48:03,178 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 103 transitions, 716 flow. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 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 12:48:03,178 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:48:03,178 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 64 [2024-11-13 12:48:03,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:48:03,624 INFO L124 PetriNetUnfolderBase]: 590/1887 cut-off events. [2024-11-13 12:48:03,624 INFO L125 PetriNetUnfolderBase]: For 5333/5548 co-relation queries the response was YES. [2024-11-13 12:48:03,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5901 conditions, 1887 events. 590/1887 cut-off events. For 5333/5548 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 15672 event pairs, 208 based on Foata normal form. 111/1957 useless extension candidates. Maximal degree in co-relation 5238. Up to 410 conditions per place. [2024-11-13 12:48:03,638 INFO L140 encePairwiseOnDemand]: 51/64 looper letters, 82 selfloop transitions, 34 changer transitions 10/161 dead transitions. [2024-11-13 12:48:03,638 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 161 transitions, 1351 flow [2024-11-13 12:48:03,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 12:48:03,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 12:48:03,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 336 transitions. [2024-11-13 12:48:03,642 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5833333333333334 [2024-11-13 12:48:03,642 INFO L175 Difference]: Start difference. First operand has 112 places, 103 transitions, 716 flow. Second operand 9 states and 336 transitions. [2024-11-13 12:48:03,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 161 transitions, 1351 flow [2024-11-13 12:48:03,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 161 transitions, 1269 flow, removed 22 selfloop flow, removed 2 redundant places. [2024-11-13 12:48:03,664 INFO L231 Difference]: Finished difference. Result has 123 places, 116 transitions, 899 flow [2024-11-13 12:48:03,665 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=667, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=899, PETRI_PLACES=123, PETRI_TRANSITIONS=116} [2024-11-13 12:48:03,665 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 58 predicate places. [2024-11-13 12:48:03,666 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 116 transitions, 899 flow [2024-11-13 12:48:03,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 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 12:48:03,666 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:48:03,666 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:48:03,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 12:48:03,667 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 12:48:03,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:03,667 INFO L85 PathProgramCache]: Analyzing trace with hash -3906924, now seen corresponding path program 1 times [2024-11-13 12:48:03,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:48:03,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675380334] [2024-11-13 12:48:03,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:03,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:48:03,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:03,765 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 12:48:03,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:48:03,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675380334] [2024-11-13 12:48:03,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675380334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:48:03,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:48:03,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:48:03,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639539348] [2024-11-13 12:48:03,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:48:03,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:48:03,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:48:03,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:48:03,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:48:03,821 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 64 [2024-11-13 12:48:03,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 116 transitions, 899 flow. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 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 12:48:03,822 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:48:03,822 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 64 [2024-11-13 12:48:03,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:48:04,353 INFO L124 PetriNetUnfolderBase]: 637/2364 cut-off events. [2024-11-13 12:48:04,354 INFO L125 PetriNetUnfolderBase]: For 7348/7706 co-relation queries the response was YES. [2024-11-13 12:48:04,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7131 conditions, 2364 events. 637/2364 cut-off events. For 7348/7706 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 22482 event pairs, 167 based on Foata normal form. 142/2461 useless extension candidates. Maximal degree in co-relation 6250. Up to 371 conditions per place. [2024-11-13 12:48:04,371 INFO L140 encePairwiseOnDemand]: 51/64 looper letters, 89 selfloop transitions, 36 changer transitions 6/169 dead transitions. [2024-11-13 12:48:04,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 169 transitions, 1510 flow [2024-11-13 12:48:04,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 12:48:04,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 12:48:04,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 334 transitions. [2024-11-13 12:48:04,374 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5798611111111112 [2024-11-13 12:48:04,374 INFO L175 Difference]: Start difference. First operand has 123 places, 116 transitions, 899 flow. Second operand 9 states and 334 transitions. [2024-11-13 12:48:04,375 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 169 transitions, 1510 flow [2024-11-13 12:48:04,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 169 transitions, 1488 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-13 12:48:04,406 INFO L231 Difference]: Finished difference. Result has 134 places, 126 transitions, 1118 flow [2024-11-13 12:48:04,406 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=862, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1118, PETRI_PLACES=134, PETRI_TRANSITIONS=126} [2024-11-13 12:48:04,406 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 69 predicate places. [2024-11-13 12:48:04,406 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 126 transitions, 1118 flow [2024-11-13 12:48:04,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 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 12:48:04,407 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:48:04,407 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:48:04,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 12:48:04,407 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 12:48:04,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:04,407 INFO L85 PathProgramCache]: Analyzing trace with hash 428818033, now seen corresponding path program 1 times [2024-11-13 12:48:04,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:48:04,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768106811] [2024-11-13 12:48:04,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:04,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:48:04,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:04,543 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 12:48:04,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:48:04,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768106811] [2024-11-13 12:48:04,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768106811] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:48:04,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:48:04,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:48:04,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [884722868] [2024-11-13 12:48:04,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:48:04,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:48:04,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:48:04,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:48:04,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:48:04,580 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 64 [2024-11-13 12:48:04,581 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 126 transitions, 1118 flow. Second operand has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 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 12:48:04,581 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:48:04,581 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 64 [2024-11-13 12:48:04,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:48:05,101 INFO L124 PetriNetUnfolderBase]: 490/2090 cut-off events. [2024-11-13 12:48:05,101 INFO L125 PetriNetUnfolderBase]: For 8481/8888 co-relation queries the response was YES. [2024-11-13 12:48:05,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6698 conditions, 2090 events. 490/2090 cut-off events. For 8481/8888 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 20515 event pairs, 58 based on Foata normal form. 210/2285 useless extension candidates. Maximal degree in co-relation 6348. Up to 294 conditions per place. [2024-11-13 12:48:05,117 INFO L140 encePairwiseOnDemand]: 51/64 looper letters, 74 selfloop transitions, 58 changer transitions 0/170 dead transitions. [2024-11-13 12:48:05,119 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 170 transitions, 1627 flow [2024-11-13 12:48:05,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-13 12:48:05,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-13 12:48:05,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 423 transitions. [2024-11-13 12:48:05,121 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.55078125 [2024-11-13 12:48:05,121 INFO L175 Difference]: Start difference. First operand has 134 places, 126 transitions, 1118 flow. Second operand 12 states and 423 transitions. [2024-11-13 12:48:05,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 170 transitions, 1627 flow [2024-11-13 12:48:05,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 170 transitions, 1520 flow, removed 17 selfloop flow, removed 6 redundant places. [2024-11-13 12:48:05,153 INFO L231 Difference]: Finished difference. Result has 139 places, 131 transitions, 1203 flow [2024-11-13 12:48:05,154 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=998, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1203, PETRI_PLACES=139, PETRI_TRANSITIONS=131} [2024-11-13 12:48:05,154 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 74 predicate places. [2024-11-13 12:48:05,154 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 131 transitions, 1203 flow [2024-11-13 12:48:05,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.333333333333332) internal successors, (188), 6 states have internal predecessors, (188), 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 12:48:05,155 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:48:05,155 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:48:05,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 12:48:05,155 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 12:48:05,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:05,155 INFO L85 PathProgramCache]: Analyzing trace with hash 424895120, now seen corresponding path program 1 times [2024-11-13 12:48:05,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:48:05,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777810838] [2024-11-13 12:48:05,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:05,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:48:05,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:05,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:48:05,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:48:05,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777810838] [2024-11-13 12:48:05,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777810838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:48:05,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:48:05,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:48:05,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156105327] [2024-11-13 12:48:05,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:48:05,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:48:05,217 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:48:05,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:48:05,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:48:05,240 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 64 [2024-11-13 12:48:05,240 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 131 transitions, 1203 flow. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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 12:48:05,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:48:05,240 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 64 [2024-11-13 12:48:05,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:48:05,710 INFO L124 PetriNetUnfolderBase]: 918/2705 cut-off events. [2024-11-13 12:48:05,710 INFO L125 PetriNetUnfolderBase]: For 9280/9395 co-relation queries the response was YES. [2024-11-13 12:48:05,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8664 conditions, 2705 events. 918/2705 cut-off events. For 9280/9395 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 24924 event pairs, 313 based on Foata normal form. 168/2781 useless extension candidates. Maximal degree in co-relation 8265. Up to 808 conditions per place. [2024-11-13 12:48:05,730 INFO L140 encePairwiseOnDemand]: 55/64 looper letters, 68 selfloop transitions, 8 changer transitions 3/156 dead transitions. [2024-11-13 12:48:05,730 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 156 transitions, 1542 flow [2024-11-13 12:48:05,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 12:48:05,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-13 12:48:05,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 204 transitions. [2024-11-13 12:48:05,732 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6375 [2024-11-13 12:48:05,732 INFO L175 Difference]: Start difference. First operand has 139 places, 131 transitions, 1203 flow. Second operand 5 states and 204 transitions. [2024-11-13 12:48:05,732 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 156 transitions, 1542 flow [2024-11-13 12:48:05,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 156 transitions, 1500 flow, removed 13 selfloop flow, removed 3 redundant places. [2024-11-13 12:48:05,772 INFO L231 Difference]: Finished difference. Result has 140 places, 128 transitions, 1166 flow [2024-11-13 12:48:05,773 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1165, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1166, PETRI_PLACES=140, PETRI_TRANSITIONS=128} [2024-11-13 12:48:05,774 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 75 predicate places. [2024-11-13 12:48:05,774 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 128 transitions, 1166 flow [2024-11-13 12:48:05,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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 12:48:05,774 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:48:05,774 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:48:05,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 12:48:05,775 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 12:48:05,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:05,775 INFO L85 PathProgramCache]: Analyzing trace with hash 591457429, now seen corresponding path program 1 times [2024-11-13 12:48:05,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:48:05,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373573961] [2024-11-13 12:48:05,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:05,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:48:05,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:05,903 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 12:48:05,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:48:05,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373573961] [2024-11-13 12:48:05,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373573961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:48:05,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:48:05,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:48:05,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161487920] [2024-11-13 12:48:05,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:48:05,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 12:48:05,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:48:05,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 12:48:05,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:48:05,943 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 64 [2024-11-13 12:48:05,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 128 transitions, 1166 flow. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 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 12:48:05,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:48:05,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 64 [2024-11-13 12:48:05,944 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:48:06,310 INFO L124 PetriNetUnfolderBase]: 397/1799 cut-off events. [2024-11-13 12:48:06,310 INFO L125 PetriNetUnfolderBase]: For 7205/7563 co-relation queries the response was YES. [2024-11-13 12:48:06,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5736 conditions, 1799 events. 397/1799 cut-off events. For 7205/7563 co-relation queries the response was YES. Maximal size of possible extension queue 176. Compared 17281 event pairs, 84 based on Foata normal form. 128/1910 useless extension candidates. Maximal degree in co-relation 5462. Up to 222 conditions per place. [2024-11-13 12:48:06,323 INFO L140 encePairwiseOnDemand]: 52/64 looper letters, 79 selfloop transitions, 34 changer transitions 0/152 dead transitions. [2024-11-13 12:48:06,323 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 152 transitions, 1514 flow [2024-11-13 12:48:06,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:48:06,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 12:48:06,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 240 transitions. [2024-11-13 12:48:06,325 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-13 12:48:06,325 INFO L175 Difference]: Start difference. First operand has 140 places, 128 transitions, 1166 flow. Second operand 6 states and 240 transitions. [2024-11-13 12:48:06,325 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 152 transitions, 1514 flow [2024-11-13 12:48:06,362 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 152 transitions, 1483 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-13 12:48:06,365 INFO L231 Difference]: Finished difference. Result has 140 places, 127 transitions, 1226 flow [2024-11-13 12:48:06,365 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1114, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1226, PETRI_PLACES=140, PETRI_TRANSITIONS=127} [2024-11-13 12:48:06,365 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 75 predicate places. [2024-11-13 12:48:06,365 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 127 transitions, 1226 flow [2024-11-13 12:48:06,366 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 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 12:48:06,366 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:48:06,366 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:48:06,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 12:48:06,366 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 12:48:06,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:06,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1557673871, now seen corresponding path program 1 times [2024-11-13 12:48:06,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:48:06,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691329594] [2024-11-13 12:48:06,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:06,367 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:48:06,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:06,467 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 12:48:06,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:48:06,468 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691329594] [2024-11-13 12:48:06,468 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691329594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:48:06,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:48:06,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:48:06,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82967832] [2024-11-13 12:48:06,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:48:06,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 12:48:06,469 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:48:06,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 12:48:06,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 12:48:06,503 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 64 [2024-11-13 12:48:06,503 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 127 transitions, 1226 flow. Second operand has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 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 12:48:06,503 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:48:06,503 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 64 [2024-11-13 12:48:06,503 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:48:06,831 INFO L124 PetriNetUnfolderBase]: 381/1709 cut-off events. [2024-11-13 12:48:06,831 INFO L125 PetriNetUnfolderBase]: For 7842/8193 co-relation queries the response was YES. [2024-11-13 12:48:06,838 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5384 conditions, 1709 events. 381/1709 cut-off events. For 7842/8193 co-relation queries the response was YES. Maximal size of possible extension queue 171. Compared 16116 event pairs, 81 based on Foata normal form. 120/1816 useless extension candidates. Maximal degree in co-relation 5126. Up to 233 conditions per place. [2024-11-13 12:48:06,843 INFO L140 encePairwiseOnDemand]: 53/64 looper letters, 81 selfloop transitions, 32 changer transitions 0/152 dead transitions. [2024-11-13 12:48:06,843 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 152 transitions, 1598 flow [2024-11-13 12:48:06,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-13 12:48:06,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-13 12:48:06,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 239 transitions. [2024-11-13 12:48:06,845 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6223958333333334 [2024-11-13 12:48:06,845 INFO L175 Difference]: Start difference. First operand has 140 places, 127 transitions, 1226 flow. Second operand 6 states and 239 transitions. [2024-11-13 12:48:06,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 152 transitions, 1598 flow [2024-11-13 12:48:06,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 152 transitions, 1574 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-11-13 12:48:06,866 INFO L231 Difference]: Finished difference. Result has 143 places, 126 transitions, 1286 flow [2024-11-13 12:48:06,866 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1179, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1286, PETRI_PLACES=143, PETRI_TRANSITIONS=126} [2024-11-13 12:48:06,867 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 78 predicate places. [2024-11-13 12:48:06,867 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 126 transitions, 1286 flow [2024-11-13 12:48:06,867 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 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 12:48:06,867 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:48:06,867 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:48:06,867 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 12:48:06,868 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 12:48:06,868 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:06,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1214213649, now seen corresponding path program 1 times [2024-11-13 12:48:06,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:48:06,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263226171] [2024-11-13 12:48:06,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:06,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:48:06,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:06,994 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 12:48:06,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:48:06,994 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263226171] [2024-11-13 12:48:06,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263226171] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:48:06,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:48:06,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:48:06,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35327272] [2024-11-13 12:48:06,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:48:06,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:48:06,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:48:06,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:48:06,996 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:48:07,042 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 64 [2024-11-13 12:48:07,042 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 126 transitions, 1286 flow. Second operand has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 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 12:48:07,042 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:48:07,042 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 64 [2024-11-13 12:48:07,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:48:07,551 INFO L124 PetriNetUnfolderBase]: 973/2682 cut-off events. [2024-11-13 12:48:07,551 INFO L125 PetriNetUnfolderBase]: For 9523/9618 co-relation queries the response was YES. [2024-11-13 12:48:07,562 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8420 conditions, 2682 events. 973/2682 cut-off events. For 9523/9618 co-relation queries the response was YES. Maximal size of possible extension queue 222. Compared 23356 event pairs, 242 based on Foata normal form. 138/2764 useless extension candidates. Maximal degree in co-relation 5947. Up to 627 conditions per place. [2024-11-13 12:48:07,570 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 76 selfloop transitions, 9 changer transitions 4/159 dead transitions. [2024-11-13 12:48:07,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 159 transitions, 1683 flow [2024-11-13 12:48:07,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 12:48:07,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-13 12:48:07,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 243 transitions. [2024-11-13 12:48:07,572 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5424107142857143 [2024-11-13 12:48:07,572 INFO L175 Difference]: Start difference. First operand has 143 places, 126 transitions, 1286 flow. Second operand 7 states and 243 transitions. [2024-11-13 12:48:07,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 159 transitions, 1683 flow [2024-11-13 12:48:07,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 159 transitions, 1672 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-13 12:48:07,599 INFO L231 Difference]: Finished difference. Result has 146 places, 125 transitions, 1290 flow [2024-11-13 12:48:07,599 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1272, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1290, PETRI_PLACES=146, PETRI_TRANSITIONS=125} [2024-11-13 12:48:07,600 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 81 predicate places. [2024-11-13 12:48:07,600 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 125 transitions, 1290 flow [2024-11-13 12:48:07,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 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 12:48:07,600 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:48:07,600 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:48:07,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 12:48:07,601 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 12:48:07,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:07,601 INFO L85 PathProgramCache]: Analyzing trace with hash 1609585059, now seen corresponding path program 1 times [2024-11-13 12:48:07,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:48:07,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055904573] [2024-11-13 12:48:07,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:07,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:48:07,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:07,703 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 12:48:07,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:48:07,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055904573] [2024-11-13 12:48:07,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055904573] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:48:07,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:48:07,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:48:07,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707012087] [2024-11-13 12:48:07,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:48:07,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:48:07,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:48:07,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:48:07,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:48:07,741 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 64 [2024-11-13 12:48:07,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 125 transitions, 1290 flow. Second operand has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 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 12:48:07,742 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:48:07,742 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 64 [2024-11-13 12:48:07,742 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:48:08,225 INFO L124 PetriNetUnfolderBase]: 914/2561 cut-off events. [2024-11-13 12:48:08,225 INFO L125 PetriNetUnfolderBase]: For 10178/10241 co-relation queries the response was YES. [2024-11-13 12:48:08,233 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8429 conditions, 2561 events. 914/2561 cut-off events. For 10178/10241 co-relation queries the response was YES. Maximal size of possible extension queue 206. Compared 22141 event pairs, 244 based on Foata normal form. 92/2599 useless extension candidates. Maximal degree in co-relation 6040. Up to 599 conditions per place. [2024-11-13 12:48:08,240 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 73 selfloop transitions, 9 changer transitions 4/156 dead transitions. [2024-11-13 12:48:08,240 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 156 transitions, 1675 flow [2024-11-13 12:48:08,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-13 12:48:08,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-13 12:48:08,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 240 transitions. [2024-11-13 12:48:08,242 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2024-11-13 12:48:08,242 INFO L175 Difference]: Start difference. First operand has 146 places, 125 transitions, 1290 flow. Second operand 7 states and 240 transitions. [2024-11-13 12:48:08,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 156 transitions, 1675 flow [2024-11-13 12:48:08,263 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 156 transitions, 1649 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-11-13 12:48:08,265 INFO L231 Difference]: Finished difference. Result has 145 places, 124 transitions, 1281 flow [2024-11-13 12:48:08,265 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1263, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1281, PETRI_PLACES=145, PETRI_TRANSITIONS=124} [2024-11-13 12:48:08,266 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 80 predicate places. [2024-11-13 12:48:08,266 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 124 transitions, 1281 flow [2024-11-13 12:48:08,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 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 12:48:08,266 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:48:08,266 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:48:08,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 12:48:08,267 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 12:48:08,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:08,267 INFO L85 PathProgramCache]: Analyzing trace with hash 1107292166, now seen corresponding path program 1 times [2024-11-13 12:48:08,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:48:08,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209689465] [2024-11-13 12:48:08,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:08,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:48:08,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:08,360 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 12:48:08,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:48:08,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209689465] [2024-11-13 12:48:08,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209689465] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:48:08,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:48:08,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:48:08,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020456273] [2024-11-13 12:48:08,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:48:08,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:48:08,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:48:08,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:48:08,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:48:08,403 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 64 [2024-11-13 12:48:08,404 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 124 transitions, 1281 flow. Second operand has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 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 12:48:08,404 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:48:08,404 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 64 [2024-11-13 12:48:08,404 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:48:08,877 INFO L124 PetriNetUnfolderBase]: 841/2424 cut-off events. [2024-11-13 12:48:08,878 INFO L125 PetriNetUnfolderBase]: For 10040/10109 co-relation queries the response was YES. [2024-11-13 12:48:08,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7948 conditions, 2424 events. 841/2424 cut-off events. For 10040/10109 co-relation queries the response was YES. Maximal size of possible extension queue 178. Compared 21053 event pairs, 193 based on Foata normal form. 112/2488 useless extension candidates. Maximal degree in co-relation 5634. Up to 625 conditions per place. [2024-11-13 12:48:08,889 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 50 selfloop transitions, 7 changer transitions 59/167 dead transitions. [2024-11-13 12:48:08,889 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 167 transitions, 1765 flow [2024-11-13 12:48:08,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-13 12:48:08,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-13 12:48:08,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 326 transitions. [2024-11-13 12:48:08,891 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.509375 [2024-11-13 12:48:08,891 INFO L175 Difference]: Start difference. First operand has 145 places, 124 transitions, 1281 flow. Second operand 10 states and 326 transitions. [2024-11-13 12:48:08,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 167 transitions, 1765 flow [2024-11-13 12:48:08,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 167 transitions, 1740 flow, removed 1 selfloop flow, removed 6 redundant places. [2024-11-13 12:48:08,914 INFO L231 Difference]: Finished difference. Result has 147 places, 94 transitions, 912 flow [2024-11-13 12:48:08,914 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=1254, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=912, PETRI_PLACES=147, PETRI_TRANSITIONS=94} [2024-11-13 12:48:08,915 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 82 predicate places. [2024-11-13 12:48:08,915 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 94 transitions, 912 flow [2024-11-13 12:48:08,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 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 12:48:08,915 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-13 12:48:08,915 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:48:08,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 12:48:08,916 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-13 12:48:08,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:48:08,916 INFO L85 PathProgramCache]: Analyzing trace with hash -1896133424, now seen corresponding path program 1 times [2024-11-13 12:48:08,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:48:08,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401049286] [2024-11-13 12:48:08,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:08,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:48:08,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:09,010 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 12:48:09,010 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:48:09,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401049286] [2024-11-13 12:48:09,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [401049286] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:48:09,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:48:09,010 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 12:48:09,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603986618] [2024-11-13 12:48:09,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:48:09,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-13 12:48:09,011 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:48:09,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-13 12:48:09,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:48:09,061 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 64 [2024-11-13 12:48:09,061 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 94 transitions, 912 flow. Second operand has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 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 12:48:09,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-13 12:48:09,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 64 [2024-11-13 12:48:09,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-13 12:48:09,302 INFO L124 PetriNetUnfolderBase]: 378/1128 cut-off events. [2024-11-13 12:48:09,302 INFO L125 PetriNetUnfolderBase]: For 5096/5117 co-relation queries the response was YES. [2024-11-13 12:48:09,306 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3873 conditions, 1128 events. 378/1128 cut-off events. For 5096/5117 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 8094 event pairs, 91 based on Foata normal form. 63/1156 useless extension candidates. Maximal degree in co-relation 3451. Up to 228 conditions per place. [2024-11-13 12:48:09,307 INFO L140 encePairwiseOnDemand]: 54/64 looper letters, 0 selfloop transitions, 0 changer transitions 111/111 dead transitions. [2024-11-13 12:48:09,307 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 111 transitions, 1157 flow [2024-11-13 12:48:09,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-13 12:48:09,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-13 12:48:09,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 273 transitions. [2024-11-13 12:48:09,309 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4739583333333333 [2024-11-13 12:48:09,309 INFO L175 Difference]: Start difference. First operand has 147 places, 94 transitions, 912 flow. Second operand 9 states and 273 transitions. [2024-11-13 12:48:09,309 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 111 transitions, 1157 flow [2024-11-13 12:48:09,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 111 transitions, 1051 flow, removed 2 selfloop flow, removed 23 redundant places. [2024-11-13 12:48:09,322 INFO L231 Difference]: Finished difference. Result has 120 places, 0 transitions, 0 flow [2024-11-13 12:48:09,322 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=64, PETRI_DIFFERENCE_MINUEND_FLOW=807, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=120, PETRI_TRANSITIONS=0} [2024-11-13 12:48:09,323 INFO L277 CegarLoopForPetriNet]: 65 programPoint places, 55 predicate places. [2024-11-13 12:48:09,323 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 0 transitions, 0 flow [2024-11-13 12:48:09,323 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 30.0) internal successors, (180), 6 states have internal predecessors, (180), 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 12:48:09,325 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2024-11-13 12:48:09,326 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2024-11-13 12:48:09,326 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2024-11-13 12:48:09,326 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2024-11-13 12:48:09,326 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2024-11-13 12:48:09,326 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2024-11-13 12:48:09,327 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2024-11-13 12:48:09,327 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2024-11-13 12:48:09,327 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2024-11-13 12:48:09,327 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2024-11-13 12:48:09,327 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2024-11-13 12:48:09,327 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2024-11-13 12:48:09,327 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2024-11-13 12:48:09,327 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2024-11-13 12:48:09,327 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2024-11-13 12:48:09,328 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2024-11-13 12:48:09,328 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2024-11-13 12:48:09,328 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2024-11-13 12:48:09,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 12:48:09,328 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:48:09,333 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-13 12:48:09,334 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 12:48:09,339 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 12:48:09 BasicIcfg [2024-11-13 12:48:09,339 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 12:48:09,339 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 12:48:09,340 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 12:48:09,340 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 12:48:09,340 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:47:57" (3/4) ... [2024-11-13 12:48:09,342 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 12:48:09,344 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-13 12:48:09,345 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-13 12:48:09,348 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 61 nodes and edges [2024-11-13 12:48:09,349 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-13 12:48:09,349 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-13 12:48:09,349 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-13 12:48:09,419 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad091eb0-948e-403a-b578-6f71e06a541c/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 12:48:09,419 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad091eb0-948e-403a-b578-6f71e06a541c/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 12:48:09,419 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 12:48:09,420 INFO L158 Benchmark]: Toolchain (without parser) took 12943.12ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 94.4MB in the beginning and 195.1MB in the end (delta: -100.8MB). Peak memory consumption was 133.1MB. Max. memory is 16.1GB. [2024-11-13 12:48:09,420 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 142.6MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:48:09,420 INFO L158 Benchmark]: CACSL2BoogieTranslator took 280.27ms. Allocated memory is still 117.4MB. Free memory was 94.4MB in the beginning and 82.8MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 12:48:09,421 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.65ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 81.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:48:09,421 INFO L158 Benchmark]: Boogie Preprocessor took 58.41ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 79.6MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 12:48:09,421 INFO L158 Benchmark]: RCFGBuilder took 665.61ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 52.0MB in the end (delta: 27.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 12:48:09,422 INFO L158 Benchmark]: TraceAbstraction took 11798.38ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 51.6MB in the beginning and 199.9MB in the end (delta: -148.2MB). Peak memory consumption was 91.2MB. Max. memory is 16.1GB. [2024-11-13 12:48:09,422 INFO L158 Benchmark]: Witness Printer took 79.71ms. Allocated memory is still 352.3MB. Free memory was 199.9MB in the beginning and 195.1MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-13 12:48:09,423 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 142.6MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 280.27ms. Allocated memory is still 117.4MB. Free memory was 94.4MB in the beginning and 82.8MB in the end (delta: 11.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.65ms. Allocated memory is still 117.4MB. Free memory was 82.8MB in the beginning and 81.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 58.41ms. Allocated memory is still 117.4MB. Free memory was 81.2MB in the beginning and 79.6MB in the end (delta: 1.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 665.61ms. Allocated memory is still 117.4MB. Free memory was 79.6MB in the beginning and 52.0MB in the end (delta: 27.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11798.38ms. Allocated memory was 117.4MB in the beginning and 352.3MB in the end (delta: 234.9MB). Free memory was 51.6MB in the beginning and 199.9MB in the end (delta: -148.2MB). Peak memory consumption was 91.2MB. Max. memory is 16.1GB. * Witness Printer took 79.71ms. Allocated memory is still 352.3MB. Free memory was 199.9MB in the beginning and 195.1MB in the end (delta: 4.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 52]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 63]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 71]: 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, 105 locations, 18 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: 11.6s, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1385 SdHoareTripleChecker+Valid, 2.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1119 mSDsluCounter, 557 SdHoareTripleChecker+Invalid, 2.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 386 mSDsCounter, 154 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2435 IncrementalHoareTripleChecker+Invalid, 2589 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 154 mSolverCounterUnsat, 171 mSDtfsCounter, 2435 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 140 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 103 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1290occurred in iteration=17, InterpolantAutomatonStates: 129, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 596 NumberOfCodeBlocks, 596 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 576 ConstructedInterpolants, 0 QuantifiedInterpolants, 1176 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 20 InterpolantComputations, 20 PerfectInterpolantSequences, 0/0 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-13 12:48:09,452 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ad091eb0-948e-403a-b578-6f71e06a541c/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE