./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 48ddce9ee02b3ea4431cf137593b71facb450c3e223dbff4f116c3c0ac1377b5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 16:46:40,736 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 16:46:40,774 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-13 16:46:40,777 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 16:46:40,778 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 16:46:40,797 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 16:46:40,797 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 16:46:40,797 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 16:46:40,798 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 16:46:40,798 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 16:46:40,798 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 16:46:40,799 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 16:46:40,806 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 16:46:40,807 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 16:46:40,807 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 16:46:40,807 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 16:46:40,808 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 16:46:40,808 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 16:46:40,808 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 16:46:40,808 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 16:46:40,808 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 16:46:40,809 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 16:46:40,813 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 16:46:40,813 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 16:46:40,814 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 16:46:40,814 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-13 16:46:40,814 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-13 16:46:40,814 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 16:46:40,814 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 16:46:40,814 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 16:46:40,815 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 16:46:40,815 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 16:46:40,815 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 16:46:40,815 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 16:46:40,815 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 16:46:40,815 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 16:46:40,816 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 16:46:40,816 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 16:46:40,816 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 16:46:40,816 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 16:46:40,817 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 16:46:40,817 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 16:46:40,817 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 16:46:40,821 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 16:46:40,821 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 48ddce9ee02b3ea4431cf137593b71facb450c3e223dbff4f116c3c0ac1377b5 [2024-10-13 16:46:41,068 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 16:46:41,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 16:46:41,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 16:46:41,090 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 16:46:41,091 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 16:46:41,092 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c [2024-10-13 16:46:42,513 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 16:46:42,708 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 16:46:42,709 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-nzb-file-symm.wvr.c [2024-10-13 16:46:42,718 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ee92c7dc/c0dbbf788a124100bfab341e45cd35d3/FLAG51a5aa74d [2024-10-13 16:46:42,731 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ee92c7dc/c0dbbf788a124100bfab341e45cd35d3 [2024-10-13 16:46:42,734 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 16:46:42,735 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 16:46:42,736 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 16:46:42,736 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 16:46:42,740 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 16:46:42,741 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:46:42" (1/1) ... [2024-10-13 16:46:42,744 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47069f5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:46:42, skipping insertion in model container [2024-10-13 16:46:42,744 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 04:46:42" (1/1) ... [2024-10-13 16:46:42,768 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 16:46:42,950 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:46:42,965 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 16:46:42,991 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 16:46:43,005 INFO L204 MainTranslator]: Completed translation [2024-10-13 16:46:43,005 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:46:43 WrapperNode [2024-10-13 16:46:43,005 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 16:46:43,006 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 16:46:43,006 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 16:46:43,007 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 16:46:43,012 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:46:43" (1/1) ... [2024-10-13 16:46:43,022 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:46:43" (1/1) ... [2024-10-13 16:46:43,089 INFO L138 Inliner]: procedures = 24, calls = 46, calls flagged for inlining = 22, calls inlined = 30, statements flattened = 499 [2024-10-13 16:46:43,091 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 16:46:43,094 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 16:46:43,097 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 16:46:43,097 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 16:46:43,106 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:46:43" (1/1) ... [2024-10-13 16:46:43,107 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:46:43" (1/1) ... [2024-10-13 16:46:43,110 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:46:43" (1/1) ... [2024-10-13 16:46:43,146 INFO L175 MemorySlicer]: Split 20 memory accesses to 2 slices as follows [2, 18]. 90 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 2 writes are split as follows [0, 2]. [2024-10-13 16:46:43,147 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:46:43" (1/1) ... [2024-10-13 16:46:43,147 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:46:43" (1/1) ... [2024-10-13 16:46:43,157 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:46:43" (1/1) ... [2024-10-13 16:46:43,162 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:46:43" (1/1) ... [2024-10-13 16:46:43,164 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:46:43" (1/1) ... [2024-10-13 16:46:43,165 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:46:43" (1/1) ... [2024-10-13 16:46:43,168 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 16:46:43,169 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 16:46:43,169 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 16:46:43,169 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 16:46:43,170 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:46:43" (1/1) ... [2024-10-13 16:46:43,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 16:46:43,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:46:43,204 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-13 16:46:43,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-13 16:46:43,259 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 16:46:43,260 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-13 16:46:43,260 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-13 16:46:43,260 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-13 16:46:43,260 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-13 16:46:43,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 16:46:43,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-13 16:46:43,260 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-13 16:46:43,261 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-13 16:46:43,262 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-13 16:46:43,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 16:46:43,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 16:46:43,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-13 16:46:43,262 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-13 16:46:43,264 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-13 16:46:43,360 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 16:46:43,362 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 16:46:44,015 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-13 16:46:44,015 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 16:46:44,377 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 16:46:44,378 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-13 16:46:44,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:46:44 BoogieIcfgContainer [2024-10-13 16:46:44,378 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 16:46:44,380 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 16:46:44,380 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 16:46:44,383 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 16:46:44,383 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 04:46:42" (1/3) ... [2024-10-13 16:46:44,384 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69c927b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:46:44, skipping insertion in model container [2024-10-13 16:46:44,384 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 04:46:43" (2/3) ... [2024-10-13 16:46:44,384 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69c927b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 04:46:44, skipping insertion in model container [2024-10-13 16:46:44,385 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:46:44" (3/3) ... [2024-10-13 16:46:44,386 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-symm.wvr.c [2024-10-13 16:46:44,399 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 16:46:44,400 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-10-13 16:46:44,400 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-13 16:46:44,491 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-13 16:46:44,527 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 169 transitions, 352 flow [2024-10-13 16:46:44,578 INFO L124 PetriNetUnfolderBase]: 26/167 cut-off events. [2024-10-13 16:46:44,580 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-13 16:46:44,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 176 conditions, 167 events. 26/167 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 829 event pairs, 0 based on Foata normal form. 0/99 useless extension candidates. Maximal degree in co-relation 149. Up to 2 conditions per place. [2024-10-13 16:46:44,587 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 169 transitions, 352 flow [2024-10-13 16:46:44,594 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 147 places, 166 transitions, 344 flow [2024-10-13 16:46:44,604 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 16:46:44,610 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;@3ce821bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 16:46:44,612 INFO L334 AbstractCegarLoop]: Starting to check reachability of 80 error locations. [2024-10-13 16:46:44,614 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-13 16:46:44,615 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-10-13 16:46:44,615 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-13 16:46:44,615 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:46:44,615 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-10-13 16:46:44,616 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:46:44,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:46:44,621 INFO L85 PathProgramCache]: Analyzing trace with hash 1512952, now seen corresponding path program 1 times [2024-10-13 16:46:44,628 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:46:44,628 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [299844218] [2024-10-13 16:46:44,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:46:44,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:46:44,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:46:44,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:46:44,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:46:44,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [299844218] [2024-10-13 16:46:44,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [299844218] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:46:44,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:46:44,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:46:44,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113731181] [2024-10-13 16:46:44,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:46:44,963 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:46:44,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:46:44,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:46:44,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:46:44,996 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-10-13 16:46:44,998 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 166 transitions, 344 flow. Second operand has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:44,999 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:46:44,999 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-10-13 16:46:45,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:46:46,114 INFO L124 PetriNetUnfolderBase]: 2890/6519 cut-off events. [2024-10-13 16:46:46,118 INFO L125 PetriNetUnfolderBase]: For 81/81 co-relation queries the response was YES. [2024-10-13 16:46:46,144 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10784 conditions, 6519 events. 2890/6519 cut-off events. For 81/81 co-relation queries the response was YES. Maximal size of possible extension queue 471. Compared 58856 event pairs, 1812 based on Foata normal form. 4/5189 useless extension candidates. Maximal degree in co-relation 10584. Up to 4183 conditions per place. [2024-10-13 16:46:46,212 INFO L140 encePairwiseOnDemand]: 154/169 looper letters, 79 selfloop transitions, 7 changer transitions 2/168 dead transitions. [2024-10-13 16:46:46,213 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 168 transitions, 522 flow [2024-10-13 16:46:46,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:46:46,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:46:46,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 427 transitions. [2024-10-13 16:46:46,225 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6316568047337278 [2024-10-13 16:46:46,226 INFO L175 Difference]: Start difference. First operand has 147 places, 166 transitions, 344 flow. Second operand 4 states and 427 transitions. [2024-10-13 16:46:46,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 168 transitions, 522 flow [2024-10-13 16:46:46,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 168 transitions, 514 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-13 16:46:46,236 INFO L231 Difference]: Finished difference. Result has 147 places, 166 transitions, 383 flow [2024-10-13 16:46:46,237 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=383, PETRI_PLACES=147, PETRI_TRANSITIONS=166} [2024-10-13 16:46:46,240 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 0 predicate places. [2024-10-13 16:46:46,240 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 166 transitions, 383 flow [2024-10-13 16:46:46,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.75) internal successors, (335), 4 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:46,241 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:46:46,241 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-10-13 16:46:46,241 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 16:46:46,241 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:46:46,242 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:46:46,242 INFO L85 PathProgramCache]: Analyzing trace with hash 2124182453, now seen corresponding path program 1 times [2024-10-13 16:46:46,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:46:46,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751990680] [2024-10-13 16:46:46,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:46:46,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:46:46,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:46:46,346 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:46:46,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:46:46,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751990680] [2024-10-13 16:46:46,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751990680] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:46:46,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407848538] [2024-10-13 16:46:46,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:46:46,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:46:46,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:46:46,349 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:46:46,351 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-13 16:46:46,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:46:46,433 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 16:46:46,436 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:46:46,472 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:46:46,473 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:46:46,473 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407848538] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:46:46,473 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:46:46,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-13 16:46:46,474 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249940126] [2024-10-13 16:46:46,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:46:46,475 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 16:46:46,475 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:46:46,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 16:46:46,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-13 16:46:46,490 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-10-13 16:46:46,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 166 transitions, 383 flow. Second operand has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 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) [2024-10-13 16:46:46,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:46:46,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-10-13 16:46:46,492 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:46:47,067 INFO L124 PetriNetUnfolderBase]: 2890/6515 cut-off events. [2024-10-13 16:46:47,067 INFO L125 PetriNetUnfolderBase]: For 26/26 co-relation queries the response was YES. [2024-10-13 16:46:47,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10750 conditions, 6515 events. 2890/6515 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 471. Compared 58786 event pairs, 1812 based on Foata normal form. 2/5186 useless extension candidates. Maximal degree in co-relation 10700. Up to 4172 conditions per place. [2024-10-13 16:46:47,093 INFO L140 encePairwiseOnDemand]: 160/169 looper letters, 72 selfloop transitions, 12 changer transitions 0/164 dead transitions. [2024-10-13 16:46:47,093 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 164 transitions, 543 flow [2024-10-13 16:46:47,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 16:46:47,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 16:46:47,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 584 transitions. [2024-10-13 16:46:47,096 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5759368836291914 [2024-10-13 16:46:47,096 INFO L175 Difference]: Start difference. First operand has 147 places, 166 transitions, 383 flow. Second operand 6 states and 584 transitions. [2024-10-13 16:46:47,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 164 transitions, 543 flow [2024-10-13 16:46:47,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 164 transitions, 543 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 16:46:47,099 INFO L231 Difference]: Finished difference. Result has 148 places, 164 transitions, 399 flow [2024-10-13 16:46:47,100 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=399, PETRI_PLACES=148, PETRI_TRANSITIONS=164} [2024-10-13 16:46:47,100 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 1 predicate places. [2024-10-13 16:46:47,100 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 164 transitions, 399 flow [2024-10-13 16:46:47,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 83.83333333333333) internal successors, (503), 6 states have internal predecessors, (503), 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) [2024-10-13 16:46:47,101 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:46:47,101 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-10-13 16:46:47,114 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-13 16:46:47,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:46:47,303 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:46:47,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:46:47,303 INFO L85 PathProgramCache]: Analyzing trace with hash 1425148113, now seen corresponding path program 1 times [2024-10-13 16:46:47,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:46:47,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453315983] [2024-10-13 16:46:47,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:46:47,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:46:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:46:47,370 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:46:47,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:46:47,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453315983] [2024-10-13 16:46:47,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453315983] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:46:47,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [902748044] [2024-10-13 16:46:47,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:46:47,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:46:47,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:46:47,373 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:46:47,374 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-13 16:46:47,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:46:47,445 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 16:46:47,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:46:47,463 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:46:47,463 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:46:47,493 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:46:47,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [902748044] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:46:47,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:46:47,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-10-13 16:46:47,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316764695] [2024-10-13 16:46:47,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:46:47,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-13 16:46:47,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:46:47,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-13 16:46:47,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-13 16:46:47,516 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-10-13 16:46:47,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 164 transitions, 399 flow. Second operand has 12 states, 12 states have (on average 84.08333333333333) internal successors, (1009), 12 states have internal predecessors, (1009), 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) [2024-10-13 16:46:47,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:46:47,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-10-13 16:46:47,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:46:48,380 INFO L124 PetriNetUnfolderBase]: 2896/6539 cut-off events. [2024-10-13 16:46:48,381 INFO L125 PetriNetUnfolderBase]: For 68/68 co-relation queries the response was YES. [2024-10-13 16:46:48,390 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10844 conditions, 6539 events. 2896/6539 cut-off events. For 68/68 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 59093 event pairs, 1812 based on Foata normal form. 6/5213 useless extension candidates. Maximal degree in co-relation 10702. Up to 4183 conditions per place. [2024-10-13 16:46:48,422 INFO L140 encePairwiseOnDemand]: 160/169 looper letters, 77 selfloop transitions, 25 changer transitions 0/182 dead transitions. [2024-10-13 16:46:48,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 182 transitions, 717 flow [2024-10-13 16:46:48,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-13 16:46:48,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-13 16:46:48,426 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 938 transitions. [2024-10-13 16:46:48,427 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5550295857988166 [2024-10-13 16:46:48,427 INFO L175 Difference]: Start difference. First operand has 148 places, 164 transitions, 399 flow. Second operand 10 states and 938 transitions. [2024-10-13 16:46:48,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 182 transitions, 717 flow [2024-10-13 16:46:48,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 182 transitions, 659 flow, removed 12 selfloop flow, removed 5 redundant places. [2024-10-13 16:46:48,433 INFO L231 Difference]: Finished difference. Result has 155 places, 182 transitions, 539 flow [2024-10-13 16:46:48,433 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=143, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=539, PETRI_PLACES=155, PETRI_TRANSITIONS=182} [2024-10-13 16:46:48,434 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 8 predicate places. [2024-10-13 16:46:48,434 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 182 transitions, 539 flow [2024-10-13 16:46:48,435 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 84.08333333333333) internal successors, (1009), 12 states have internal predecessors, (1009), 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) [2024-10-13 16:46:48,435 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:46:48,435 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:46:48,451 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-13 16:46:48,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-10-13 16:46:48,640 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:46:48,641 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:46:48,641 INFO L85 PathProgramCache]: Analyzing trace with hash 2088466662, now seen corresponding path program 1 times [2024-10-13 16:46:48,641 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:46:48,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607013991] [2024-10-13 16:46:48,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:46:48,642 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:46:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:46:48,741 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:46:48,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:46:48,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607013991] [2024-10-13 16:46:48,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607013991] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:46:48,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:46:48,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:46:48,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769300966] [2024-10-13 16:46:48,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:46:48,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:46:48,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:46:48,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:46:48,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:46:48,745 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 169 [2024-10-13 16:46:48,746 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 182 transitions, 539 flow. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:48,746 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:46:48,746 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 169 [2024-10-13 16:46:48,746 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:46:49,385 INFO L124 PetriNetUnfolderBase]: 2894/6537 cut-off events. [2024-10-13 16:46:49,385 INFO L125 PetriNetUnfolderBase]: For 89/89 co-relation queries the response was YES. [2024-10-13 16:46:49,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10849 conditions, 6537 events. 2894/6537 cut-off events. For 89/89 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 58947 event pairs, 1812 based on Foata normal form. 2/5209 useless extension candidates. Maximal degree in co-relation 10782. Up to 4192 conditions per place. [2024-10-13 16:46:49,408 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 91 selfloop transitions, 7 changer transitions 0/180 dead transitions. [2024-10-13 16:46:49,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 180 transitions, 725 flow [2024-10-13 16:46:49,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:46:49,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:46:49,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 343 transitions. [2024-10-13 16:46:49,410 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6765285996055227 [2024-10-13 16:46:49,410 INFO L175 Difference]: Start difference. First operand has 155 places, 182 transitions, 539 flow. Second operand 3 states and 343 transitions. [2024-10-13 16:46:49,410 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 180 transitions, 725 flow [2024-10-13 16:46:49,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 180 transitions, 695 flow, removed 6 selfloop flow, removed 3 redundant places. [2024-10-13 16:46:49,413 INFO L231 Difference]: Finished difference. Result has 154 places, 180 transitions, 513 flow [2024-10-13 16:46:49,413 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=180, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=513, PETRI_PLACES=154, PETRI_TRANSITIONS=180} [2024-10-13 16:46:49,414 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 7 predicate places. [2024-10-13 16:46:49,414 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 180 transitions, 513 flow [2024-10-13 16:46:49,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:49,414 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:46:49,414 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-10-13 16:46:49,415 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-13 16:46:49,415 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:46:49,415 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:46:49,415 INFO L85 PathProgramCache]: Analyzing trace with hash -1604617938, now seen corresponding path program 2 times [2024-10-13 16:46:49,415 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:46:49,415 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370204935] [2024-10-13 16:46:49,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:46:49,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:46:49,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:46:49,556 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-13 16:46:49,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:46:49,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370204935] [2024-10-13 16:46:49,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370204935] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:46:49,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471135965] [2024-10-13 16:46:49,557 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 16:46:49,557 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:46:49,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:46:49,563 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:46:49,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-13 16:46:49,637 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 16:46:49,637 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 16:46:49,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-13 16:46:49,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:46:49,669 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-13 16:46:49,669 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:46:49,710 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-10-13 16:46:49,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471135965] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:46:49,710 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:46:49,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 13 [2024-10-13 16:46:49,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [438792335] [2024-10-13 16:46:49,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:46:49,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-13 16:46:49,711 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:46:49,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-13 16:46:49,712 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-10-13 16:46:49,741 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-10-13 16:46:49,742 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 180 transitions, 513 flow. Second operand has 15 states, 15 states have (on average 84.33333333333333) internal successors, (1265), 15 states have internal predecessors, (1265), 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) [2024-10-13 16:46:49,743 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:46:49,743 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-10-13 16:46:49,743 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:46:50,435 INFO L124 PetriNetUnfolderBase]: 2896/6539 cut-off events. [2024-10-13 16:46:50,435 INFO L125 PetriNetUnfolderBase]: For 73/73 co-relation queries the response was YES. [2024-10-13 16:46:50,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10844 conditions, 6539 events. 2896/6539 cut-off events. For 73/73 co-relation queries the response was YES. Maximal size of possible extension queue 470. Compared 58917 event pairs, 1812 based on Foata normal form. 2/5211 useless extension candidates. Maximal degree in co-relation 10774. Up to 4175 conditions per place. [2024-10-13 16:46:50,477 INFO L140 encePairwiseOnDemand]: 160/169 looper letters, 69 selfloop transitions, 33 changer transitions 0/182 dead transitions. [2024-10-13 16:46:50,477 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 182 transitions, 721 flow [2024-10-13 16:46:50,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-13 16:46:50,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-10-13 16:46:50,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1183 transitions. [2024-10-13 16:46:50,483 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5384615384615384 [2024-10-13 16:46:50,483 INFO L175 Difference]: Start difference. First operand has 154 places, 180 transitions, 513 flow. Second operand 13 states and 1183 transitions. [2024-10-13 16:46:50,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 182 transitions, 721 flow [2024-10-13 16:46:50,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 182 transitions, 685 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-10-13 16:46:50,494 INFO L231 Difference]: Finished difference. Result has 158 places, 182 transitions, 547 flow [2024-10-13 16:46:50,494 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=459, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=547, PETRI_PLACES=158, PETRI_TRANSITIONS=182} [2024-10-13 16:46:50,495 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 11 predicate places. [2024-10-13 16:46:50,495 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 182 transitions, 547 flow [2024-10-13 16:46:50,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 84.33333333333333) internal successors, (1265), 15 states have internal predecessors, (1265), 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) [2024-10-13 16:46:50,495 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:46:50,496 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:46:50,508 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-13 16:46:50,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:46:50,698 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:46:50,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:46:50,698 INFO L85 PathProgramCache]: Analyzing trace with hash -115340577, now seen corresponding path program 1 times [2024-10-13 16:46:50,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:46:50,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920321165] [2024-10-13 16:46:50,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:46:50,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:46:50,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:46:50,760 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 16:46:50,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:46:50,760 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920321165] [2024-10-13 16:46:50,760 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920321165] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:46:50,760 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:46:50,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:46:50,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85364440] [2024-10-13 16:46:50,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:46:50,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:46:50,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:46:50,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:46:50,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:46:50,767 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-10-13 16:46:50,768 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 182 transitions, 547 flow. Second operand has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:50,768 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:46:50,768 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-10-13 16:46:50,768 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:46:51,606 INFO L124 PetriNetUnfolderBase]: 5153/10831 cut-off events. [2024-10-13 16:46:51,607 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2024-10-13 16:46:51,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18528 conditions, 10831 events. 5153/10831 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 495. Compared 95791 event pairs, 2276 based on Foata normal form. 112/9063 useless extension candidates. Maximal degree in co-relation 18362. Up to 4875 conditions per place. [2024-10-13 16:46:51,657 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 160 selfloop transitions, 2 changer transitions 0/238 dead transitions. [2024-10-13 16:46:51,658 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 238 transitions, 985 flow [2024-10-13 16:46:51,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:46:51,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:46:51,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 389 transitions. [2024-10-13 16:46:51,659 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7672583826429981 [2024-10-13 16:46:51,659 INFO L175 Difference]: Start difference. First operand has 158 places, 182 transitions, 547 flow. Second operand 3 states and 389 transitions. [2024-10-13 16:46:51,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 238 transitions, 985 flow [2024-10-13 16:46:51,661 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 238 transitions, 865 flow, removed 8 selfloop flow, removed 12 redundant places. [2024-10-13 16:46:51,663 INFO L231 Difference]: Finished difference. Result has 149 places, 183 transitions, 445 flow [2024-10-13 16:46:51,664 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=427, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=445, PETRI_PLACES=149, PETRI_TRANSITIONS=183} [2024-10-13 16:46:51,666 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 2 predicate places. [2024-10-13 16:46:51,666 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 183 transitions, 445 flow [2024-10-13 16:46:51,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.33333333333333) internal successors, (262), 3 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:46:51,666 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:46:51,667 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:46:51,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-13 16:46:51,667 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:46:51,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:46:51,667 INFO L85 PathProgramCache]: Analyzing trace with hash -116357444, now seen corresponding path program 1 times [2024-10-13 16:46:51,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:46:51,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413086356] [2024-10-13 16:46:51,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:46:51,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:46:51,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:46:51,757 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-13 16:46:51,757 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:46:51,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413086356] [2024-10-13 16:46:51,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1413086356] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:46:51,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:46:51,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:46:51,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549066199] [2024-10-13 16:46:51,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:46:51,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:46:51,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:46:51,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:46:51,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:46:51,798 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-10-13 16:46:51,798 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 183 transitions, 445 flow. Second operand has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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) [2024-10-13 16:46:51,798 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:46:51,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-10-13 16:46:51,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:46:53,155 INFO L124 PetriNetUnfolderBase]: 7104/14899 cut-off events. [2024-10-13 16:46:53,155 INFO L125 PetriNetUnfolderBase]: For 283/283 co-relation queries the response was YES. [2024-10-13 16:46:53,185 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25859 conditions, 14899 events. 7104/14899 cut-off events. For 283/283 co-relation queries the response was YES. Maximal size of possible extension queue 707. Compared 138212 event pairs, 2894 based on Foata normal form. 336/12491 useless extension candidates. Maximal degree in co-relation 9100. Up to 6606 conditions per place. [2024-10-13 16:46:53,272 INFO L140 encePairwiseOnDemand]: 153/169 looper letters, 181 selfloop transitions, 10 changer transitions 0/259 dead transitions. [2024-10-13 16:46:53,276 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 259 transitions, 981 flow [2024-10-13 16:46:53,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:46:53,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:46:53,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 470 transitions. [2024-10-13 16:46:53,278 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6952662721893491 [2024-10-13 16:46:53,278 INFO L175 Difference]: Start difference. First operand has 149 places, 183 transitions, 445 flow. Second operand 4 states and 470 transitions. [2024-10-13 16:46:53,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 259 transitions, 981 flow [2024-10-13 16:46:53,279 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 259 transitions, 979 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:46:53,286 INFO L231 Difference]: Finished difference. Result has 152 places, 187 transitions, 511 flow [2024-10-13 16:46:53,286 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=439, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=511, PETRI_PLACES=152, PETRI_TRANSITIONS=187} [2024-10-13 16:46:53,286 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 5 predicate places. [2024-10-13 16:46:53,287 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 187 transitions, 511 flow [2024-10-13 16:46:53,287 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 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) [2024-10-13 16:46:53,287 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:46:53,287 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:46:53,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-13 16:46:53,287 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:46:53,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:46:53,291 INFO L85 PathProgramCache]: Analyzing trace with hash 687888212, now seen corresponding path program 1 times [2024-10-13 16:46:53,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:46:53,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1670042599] [2024-10-13 16:46:53,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:46:53,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:46:53,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:46:53,424 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 16:46:53,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:46:53,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1670042599] [2024-10-13 16:46:53,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1670042599] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:46:53,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761041307] [2024-10-13 16:46:53,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:46:53,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:46:53,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:46:53,429 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:46:53,438 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-13 16:46:53,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:46:53,578 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 16:46:53,579 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:46:53,637 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 16:46:53,640 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:46:53,688 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-13 16:46:53,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761041307] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:46:53,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:46:53,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-10-13 16:46:53,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7509014] [2024-10-13 16:46:53,689 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:46:53,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-13 16:46:53,693 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:46:53,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-13 16:46:53,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-13 16:46:53,729 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-10-13 16:46:53,730 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 187 transitions, 511 flow. Second operand has 11 states, 11 states have (on average 84.72727272727273) internal successors, (932), 11 states have internal predecessors, (932), 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) [2024-10-13 16:46:53,730 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:46:53,730 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-10-13 16:46:53,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:46:54,614 INFO L124 PetriNetUnfolderBase]: 5449/12740 cut-off events. [2024-10-13 16:46:54,614 INFO L125 PetriNetUnfolderBase]: For 1936/2078 co-relation queries the response was YES. [2024-10-13 16:46:54,634 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22902 conditions, 12740 events. 5449/12740 cut-off events. For 1936/2078 co-relation queries the response was YES. Maximal size of possible extension queue 616. Compared 124951 event pairs, 3559 based on Foata normal form. 79/10767 useless extension candidates. Maximal degree in co-relation 15845. Up to 7903 conditions per place. [2024-10-13 16:46:54,665 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 79 selfloop transitions, 24 changer transitions 0/183 dead transitions. [2024-10-13 16:46:54,665 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 183 transitions, 703 flow [2024-10-13 16:46:54,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 16:46:54,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 16:46:54,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 671 transitions. [2024-10-13 16:46:54,667 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5672020287404903 [2024-10-13 16:46:54,667 INFO L175 Difference]: Start difference. First operand has 152 places, 187 transitions, 511 flow. Second operand 7 states and 671 transitions. [2024-10-13 16:46:54,667 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 183 transitions, 703 flow [2024-10-13 16:46:54,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 183 transitions, 703 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 16:46:54,680 INFO L231 Difference]: Finished difference. Result has 158 places, 183 transitions, 545 flow [2024-10-13 16:46:54,680 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=497, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=545, PETRI_PLACES=158, PETRI_TRANSITIONS=183} [2024-10-13 16:46:54,682 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 11 predicate places. [2024-10-13 16:46:54,682 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 183 transitions, 545 flow [2024-10-13 16:46:54,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 84.72727272727273) internal successors, (932), 11 states have internal predecessors, (932), 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) [2024-10-13 16:46:54,683 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:46:54,684 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:46:54,700 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-13 16:46:54,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:46:54,888 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:46:54,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:46:54,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1947019892, now seen corresponding path program 2 times [2024-10-13 16:46:54,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:46:54,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713493924] [2024-10-13 16:46:54,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:46:54,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:46:54,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:46:55,063 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 16:46:55,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:46:55,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [713493924] [2024-10-13 16:46:55,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [713493924] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:46:55,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324746645] [2024-10-13 16:46:55,064 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-13 16:46:55,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:46:55,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:46:55,065 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:46:55,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-13 16:46:55,156 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-10-13 16:46:55,156 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-13 16:46:55,157 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:46:55,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:46:55,195 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-10-13 16:46:55,196 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:46:55,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324746645] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:46:55,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:46:55,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [8] total 10 [2024-10-13 16:46:55,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581983070] [2024-10-13 16:46:55,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:46:55,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:46:55,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:46:55,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:46:55,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-13 16:46:55,220 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-10-13 16:46:55,220 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 183 transitions, 545 flow. Second operand has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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) [2024-10-13 16:46:55,220 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:46:55,220 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-10-13 16:46:55,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:46:56,204 INFO L124 PetriNetUnfolderBase]: 6295/14332 cut-off events. [2024-10-13 16:46:56,205 INFO L125 PetriNetUnfolderBase]: For 2288/2330 co-relation queries the response was YES. [2024-10-13 16:46:56,223 INFO L83 FinitePrefix]: Finished finitePrefix Result has 26244 conditions, 14332 events. 6295/14332 cut-off events. For 2288/2330 co-relation queries the response was YES. Maximal size of possible extension queue 672. Compared 139767 event pairs, 3226 based on Foata normal form. 42/12086 useless extension candidates. Maximal degree in co-relation 26121. Up to 7093 conditions per place. [2024-10-13 16:46:56,254 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 136 selfloop transitions, 7 changer transitions 0/219 dead transitions. [2024-10-13 16:46:56,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 160 places, 219 transitions, 906 flow [2024-10-13 16:46:56,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:46:56,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:46:56,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 441 transitions. [2024-10-13 16:46:56,259 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6523668639053254 [2024-10-13 16:46:56,259 INFO L175 Difference]: Start difference. First operand has 158 places, 183 transitions, 545 flow. Second operand 4 states and 441 transitions. [2024-10-13 16:46:56,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 160 places, 219 transitions, 906 flow [2024-10-13 16:46:56,290 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 219 transitions, 858 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-13 16:46:56,297 INFO L231 Difference]: Finished difference. Result has 155 places, 183 transitions, 521 flow [2024-10-13 16:46:56,297 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=521, PETRI_PLACES=155, PETRI_TRANSITIONS=183} [2024-10-13 16:46:56,298 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 8 predicate places. [2024-10-13 16:46:56,298 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 183 transitions, 521 flow [2024-10-13 16:46:56,298 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.0) internal successors, (336), 4 states have internal predecessors, (336), 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) [2024-10-13 16:46:56,298 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:46:56,298 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:46:56,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-13 16:46:56,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:46:56,499 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:46:56,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:46:56,500 INFO L85 PathProgramCache]: Analyzing trace with hash 228044423, now seen corresponding path program 1 times [2024-10-13 16:46:56,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:46:56,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [892849118] [2024-10-13 16:46:56,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:46:56,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:46:56,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:46:56,675 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 16:46:56,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:46:56,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [892849118] [2024-10-13 16:46:56,676 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [892849118] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:46:56,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1553167690] [2024-10-13 16:46:56,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:46:56,676 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:46:56,676 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:46:56,681 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:46:56,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-13 16:46:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:46:56,779 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-13 16:46:56,781 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:46:56,886 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 16:46:56,887 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-13 16:46:56,985 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-13 16:46:56,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1553167690] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-13 16:46:56,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-13 16:46:56,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2024-10-13 16:46:56,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495686064] [2024-10-13 16:46:56,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-13 16:46:56,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-13 16:46:56,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:46:56,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-13 16:46:56,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2024-10-13 16:46:57,037 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-10-13 16:46:57,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 183 transitions, 521 flow. Second operand has 23 states, 23 states have (on average 84.3913043478261) internal successors, (1941), 23 states have internal predecessors, (1941), 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) [2024-10-13 16:46:57,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:46:57,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-10-13 16:46:57,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:46:58,459 INFO L124 PetriNetUnfolderBase]: 5757/13572 cut-off events. [2024-10-13 16:46:58,460 INFO L125 PetriNetUnfolderBase]: For 3780/3922 co-relation queries the response was YES. [2024-10-13 16:46:58,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25075 conditions, 13572 events. 5757/13572 cut-off events. For 3780/3922 co-relation queries the response was YES. Maximal size of possible extension queue 639. Compared 134823 event pairs, 3813 based on Foata normal form. 79/11429 useless extension candidates. Maximal degree in co-relation 18793. Up to 8381 conditions per place. [2024-10-13 16:46:58,531 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 78 selfloop transitions, 22 changer transitions 0/179 dead transitions. [2024-10-13 16:46:58,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 179 transitions, 707 flow [2024-10-13 16:46:58,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-13 16:46:58,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-13 16:46:58,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1011 transitions. [2024-10-13 16:46:58,535 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5438407746100054 [2024-10-13 16:46:58,535 INFO L175 Difference]: Start difference. First operand has 155 places, 183 transitions, 521 flow. Second operand 11 states and 1011 transitions. [2024-10-13 16:46:58,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 179 transitions, 707 flow [2024-10-13 16:46:58,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 163 places, 179 transitions, 699 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 16:46:58,574 INFO L231 Difference]: Finished difference. Result has 163 places, 179 transitions, 543 flow [2024-10-13 16:46:58,575 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=543, PETRI_PLACES=163, PETRI_TRANSITIONS=179} [2024-10-13 16:46:58,575 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 16 predicate places. [2024-10-13 16:46:58,575 INFO L471 AbstractCegarLoop]: Abstraction has has 163 places, 179 transitions, 543 flow [2024-10-13 16:46:58,576 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 84.3913043478261) internal successors, (1941), 23 states have internal predecessors, (1941), 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) [2024-10-13 16:46:58,576 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:46:58,576 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:46:58,590 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-13 16:46:58,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:46:58,778 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:46:58,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:46:58,778 INFO L85 PathProgramCache]: Analyzing trace with hash -42703001, now seen corresponding path program 2 times [2024-10-13 16:46:58,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:46:58,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [771026864] [2024-10-13 16:46:58,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:46:58,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:46:58,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:46:59,000 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:46:59,004 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:46:59,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [771026864] [2024-10-13 16:46:59,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [771026864] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:46:59,004 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:46:59,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:46:59,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657448485] [2024-10-13 16:46:59,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:46:59,005 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:46:59,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:46:59,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:46:59,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:46:59,058 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 169 [2024-10-13 16:46:59,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 163 places, 179 transitions, 543 flow. Second operand has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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) [2024-10-13 16:46:59,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:46:59,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 169 [2024-10-13 16:46:59,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:47:00,364 INFO L124 PetriNetUnfolderBase]: 6529/14592 cut-off events. [2024-10-13 16:47:00,364 INFO L125 PetriNetUnfolderBase]: For 4096/4138 co-relation queries the response was YES. [2024-10-13 16:47:00,436 INFO L83 FinitePrefix]: Finished finitePrefix Result has 27597 conditions, 14592 events. 6529/14592 cut-off events. For 4096/4138 co-relation queries the response was YES. Maximal size of possible extension queue 680. Compared 140627 event pairs, 3522 based on Foata normal form. 98/12314 useless extension candidates. Maximal degree in co-relation 27485. Up to 7689 conditions per place. [2024-10-13 16:47:00,508 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 134 selfloop transitions, 7 changer transitions 0/213 dead transitions. [2024-10-13 16:47:00,508 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 213 transitions, 892 flow [2024-10-13 16:47:00,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:47:00,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:47:00,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 432 transitions. [2024-10-13 16:47:00,510 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6390532544378699 [2024-10-13 16:47:00,510 INFO L175 Difference]: Start difference. First operand has 163 places, 179 transitions, 543 flow. Second operand 4 states and 432 transitions. [2024-10-13 16:47:00,510 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 213 transitions, 892 flow [2024-10-13 16:47:00,557 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 213 transitions, 848 flow, removed 0 selfloop flow, removed 10 redundant places. [2024-10-13 16:47:00,559 INFO L231 Difference]: Finished difference. Result has 155 places, 178 transitions, 509 flow [2024-10-13 16:47:00,560 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=509, PETRI_PLACES=155, PETRI_TRANSITIONS=178} [2024-10-13 16:47:00,560 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 8 predicate places. [2024-10-13 16:47:00,560 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 178 transitions, 509 flow [2024-10-13 16:47:00,561 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.25) internal successors, (329), 4 states have internal predecessors, (329), 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) [2024-10-13 16:47:00,561 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:47:00,561 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:47:00,561 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-13 16:47:00,561 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:47:00,562 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:47:00,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1540450559, now seen corresponding path program 1 times [2024-10-13 16:47:00,562 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:47:00,562 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915663776] [2024-10-13 16:47:00,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:00,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:47:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:00,639 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:47:00,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:47:00,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915663776] [2024-10-13 16:47:00,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915663776] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:47:00,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:47:00,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:47:00,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1413169898] [2024-10-13 16:47:00,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:47:00,640 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:47:00,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:47:00,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:47:00,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-13 16:47:00,650 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-10-13 16:47:00,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 178 transitions, 509 flow. Second operand has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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) [2024-10-13 16:47:00,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:47:00,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-10-13 16:47:00,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:47:02,081 INFO L124 PetriNetUnfolderBase]: 9773/20944 cut-off events. [2024-10-13 16:47:02,081 INFO L125 PetriNetUnfolderBase]: For 6589/6906 co-relation queries the response was YES. [2024-10-13 16:47:02,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40029 conditions, 20944 events. 9773/20944 cut-off events. For 6589/6906 co-relation queries the response was YES. Maximal size of possible extension queue 731. Compared 201588 event pairs, 4417 based on Foata normal form. 417/18412 useless extension candidates. Maximal degree in co-relation 33359. Up to 9507 conditions per place. [2024-10-13 16:47:02,214 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 162 selfloop transitions, 2 changer transitions 0/238 dead transitions. [2024-10-13 16:47:02,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 238 transitions, 1020 flow [2024-10-13 16:47:02,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:47:02,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:47:02,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 387 transitions. [2024-10-13 16:47:02,216 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7633136094674556 [2024-10-13 16:47:02,216 INFO L175 Difference]: Start difference. First operand has 155 places, 178 transitions, 509 flow. Second operand 3 states and 387 transitions. [2024-10-13 16:47:02,216 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 238 transitions, 1020 flow [2024-10-13 16:47:02,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 238 transitions, 1000 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 16:47:02,277 INFO L231 Difference]: Finished difference. Result has 155 places, 179 transitions, 513 flow [2024-10-13 16:47:02,277 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=513, PETRI_PLACES=155, PETRI_TRANSITIONS=179} [2024-10-13 16:47:02,278 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 8 predicate places. [2024-10-13 16:47:02,279 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 179 transitions, 513 flow [2024-10-13 16:47:02,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.0) internal successors, (264), 3 states have internal predecessors, (264), 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) [2024-10-13 16:47:02,279 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:47:02,279 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:47:02,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-13 16:47:02,279 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:47:02,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:47:02,280 INFO L85 PathProgramCache]: Analyzing trace with hash 1539433692, now seen corresponding path program 1 times [2024-10-13 16:47:02,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:47:02,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697502446] [2024-10-13 16:47:02,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:02,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:47:02,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:02,408 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:47:02,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:47:02,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697502446] [2024-10-13 16:47:02,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697502446] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:47:02,409 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:47:02,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:47:02,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858064837] [2024-10-13 16:47:02,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:47:02,410 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:47:02,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:47:02,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:47:02,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:47:02,443 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-10-13 16:47:02,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 179 transitions, 513 flow. Second operand has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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) [2024-10-13 16:47:02,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:47:02,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-10-13 16:47:02,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:47:04,258 INFO L124 PetriNetUnfolderBase]: 13708/28419 cut-off events. [2024-10-13 16:47:04,258 INFO L125 PetriNetUnfolderBase]: For 8373/8852 co-relation queries the response was YES. [2024-10-13 16:47:04,314 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55647 conditions, 28419 events. 13708/28419 cut-off events. For 8373/8852 co-relation queries the response was YES. Maximal size of possible extension queue 984. Compared 277769 event pairs, 6038 based on Foata normal form. 949/25515 useless extension candidates. Maximal degree in co-relation 40940. Up to 13076 conditions per place. [2024-10-13 16:47:04,401 INFO L140 encePairwiseOnDemand]: 153/169 looper letters, 189 selfloop transitions, 10 changer transitions 0/265 dead transitions. [2024-10-13 16:47:04,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 265 transitions, 1197 flow [2024-10-13 16:47:04,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:47:04,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:47:04,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 468 transitions. [2024-10-13 16:47:04,402 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6923076923076923 [2024-10-13 16:47:04,403 INFO L175 Difference]: Start difference. First operand has 155 places, 179 transitions, 513 flow. Second operand 4 states and 468 transitions. [2024-10-13 16:47:04,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 265 transitions, 1197 flow [2024-10-13 16:47:04,452 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 265 transitions, 1195 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:47:04,454 INFO L231 Difference]: Finished difference. Result has 158 places, 183 transitions, 579 flow [2024-10-13 16:47:04,457 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=507, PETRI_DIFFERENCE_MINUEND_PLACES=152, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=579, PETRI_PLACES=158, PETRI_TRANSITIONS=183} [2024-10-13 16:47:04,458 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 11 predicate places. [2024-10-13 16:47:04,459 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 183 transitions, 579 flow [2024-10-13 16:47:04,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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) [2024-10-13 16:47:04,460 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:47:04,460 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:47:04,461 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-13 16:47:04,461 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:47:04,461 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:47:04,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1131369033, now seen corresponding path program 1 times [2024-10-13 16:47:04,461 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:47:04,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157210705] [2024-10-13 16:47:04,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:04,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:47:04,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:04,555 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:47:04,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:47:04,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157210705] [2024-10-13 16:47:04,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157210705] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:47:04,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:47:04,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 16:47:04,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613277588] [2024-10-13 16:47:04,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:47:04,556 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:47:04,556 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:47:04,557 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:47:04,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:47:04,567 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-10-13 16:47:04,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 183 transitions, 579 flow. Second operand has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 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) [2024-10-13 16:47:04,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:47:04,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-10-13 16:47:04,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:47:06,136 INFO L124 PetriNetUnfolderBase]: 10460/21880 cut-off events. [2024-10-13 16:47:06,136 INFO L125 PetriNetUnfolderBase]: For 8596/9108 co-relation queries the response was YES. [2024-10-13 16:47:06,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45261 conditions, 21880 events. 10460/21880 cut-off events. For 8596/9108 co-relation queries the response was YES. Maximal size of possible extension queue 722. Compared 206757 event pairs, 5256 based on Foata normal form. 416/20502 useless extension candidates. Maximal degree in co-relation 34215. Up to 10878 conditions per place. [2024-10-13 16:47:06,236 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 228 selfloop transitions, 4 changer transitions 14/320 dead transitions. [2024-10-13 16:47:06,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 320 transitions, 1476 flow [2024-10-13 16:47:06,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 16:47:06,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 16:47:06,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 619 transitions. [2024-10-13 16:47:06,241 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7325443786982249 [2024-10-13 16:47:06,241 INFO L175 Difference]: Start difference. First operand has 158 places, 183 transitions, 579 flow. Second operand 5 states and 619 transitions. [2024-10-13 16:47:06,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 320 transitions, 1476 flow [2024-10-13 16:47:06,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 320 transitions, 1476 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-13 16:47:06,316 INFO L231 Difference]: Finished difference. Result has 165 places, 185 transitions, 604 flow [2024-10-13 16:47:06,317 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=579, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=604, PETRI_PLACES=165, PETRI_TRANSITIONS=185} [2024-10-13 16:47:06,317 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 18 predicate places. [2024-10-13 16:47:06,317 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 185 transitions, 604 flow [2024-10-13 16:47:06,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.5) internal successors, (346), 4 states have internal predecessors, (346), 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) [2024-10-13 16:47:06,318 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:47:06,318 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:47:06,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-13 16:47:06,318 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:47:06,318 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:47:06,318 INFO L85 PathProgramCache]: Analyzing trace with hash -1093132317, now seen corresponding path program 1 times [2024-10-13 16:47:06,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:47:06,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196744222] [2024-10-13 16:47:06,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:06,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:47:06,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:06,415 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:47:06,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:47:06,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196744222] [2024-10-13 16:47:06,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196744222] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:47:06,416 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:47:06,416 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:47:06,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854923025] [2024-10-13 16:47:06,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:47:06,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:47:06,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:47:06,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:47:06,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:47:06,439 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-10-13 16:47:06,439 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 185 transitions, 604 flow. Second operand has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 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) [2024-10-13 16:47:06,439 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:47:06,439 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-10-13 16:47:06,439 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:47:08,378 INFO L124 PetriNetUnfolderBase]: 10820/22036 cut-off events. [2024-10-13 16:47:08,378 INFO L125 PetriNetUnfolderBase]: For 9952/10488 co-relation queries the response was YES. [2024-10-13 16:47:08,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47216 conditions, 22036 events. 10820/22036 cut-off events. For 9952/10488 co-relation queries the response was YES. Maximal size of possible extension queue 720. Compared 203810 event pairs, 6076 based on Foata normal form. 530/20968 useless extension candidates. Maximal degree in co-relation 36167. Up to 12402 conditions per place. [2024-10-13 16:47:08,536 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 202 selfloop transitions, 3 changer transitions 0/277 dead transitions. [2024-10-13 16:47:08,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 168 places, 277 transitions, 1285 flow [2024-10-13 16:47:08,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:47:08,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:47:08,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 493 transitions. [2024-10-13 16:47:08,538 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7292899408284024 [2024-10-13 16:47:08,538 INFO L175 Difference]: Start difference. First operand has 165 places, 185 transitions, 604 flow. Second operand 4 states and 493 transitions. [2024-10-13 16:47:08,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 168 places, 277 transitions, 1285 flow [2024-10-13 16:47:08,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 277 transitions, 1283 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:47:08,634 INFO L231 Difference]: Finished difference. Result has 169 places, 186 transitions, 620 flow [2024-10-13 16:47:08,635 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=602, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=620, PETRI_PLACES=169, PETRI_TRANSITIONS=186} [2024-10-13 16:47:08,635 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 22 predicate places. [2024-10-13 16:47:08,635 INFO L471 AbstractCegarLoop]: Abstraction has has 169 places, 186 transitions, 620 flow [2024-10-13 16:47:08,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 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) [2024-10-13 16:47:08,636 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:47:08,636 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:47:08,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-13 16:47:08,636 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:47:08,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:47:08,636 INFO L85 PathProgramCache]: Analyzing trace with hash -1323792355, now seen corresponding path program 1 times [2024-10-13 16:47:08,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:47:08,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469016904] [2024-10-13 16:47:08,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:08,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:47:08,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:08,771 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:47:08,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:47:08,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469016904] [2024-10-13 16:47:08,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469016904] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:47:08,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:47:08,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:47:08,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294106691] [2024-10-13 16:47:08,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:47:08,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 16:47:08,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:47:08,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 16:47:08,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 16:47:08,845 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 169 [2024-10-13 16:47:08,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 186 transitions, 620 flow. Second operand has 5 states, 5 states have (on average 80.0) internal successors, (400), 5 states have internal predecessors, (400), 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) [2024-10-13 16:47:08,848 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:47:08,848 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 169 [2024-10-13 16:47:08,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:47:11,379 INFO L124 PetriNetUnfolderBase]: 12403/24884 cut-off events. [2024-10-13 16:47:11,380 INFO L125 PetriNetUnfolderBase]: For 10225/10700 co-relation queries the response was YES. [2024-10-13 16:47:11,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54302 conditions, 24884 events. 12403/24884 cut-off events. For 10225/10700 co-relation queries the response was YES. Maximal size of possible extension queue 770. Compared 228228 event pairs, 5860 based on Foata normal form. 247/23230 useless extension candidates. Maximal degree in co-relation 38475. Up to 12224 conditions per place. [2024-10-13 16:47:11,613 INFO L140 encePairwiseOnDemand]: 158/169 looper letters, 187 selfloop transitions, 12 changer transitions 0/267 dead transitions. [2024-10-13 16:47:11,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 172 places, 267 transitions, 1266 flow [2024-10-13 16:47:11,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 16:47:11,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 16:47:11,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 546 transitions. [2024-10-13 16:47:11,615 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6461538461538462 [2024-10-13 16:47:11,615 INFO L175 Difference]: Start difference. First operand has 169 places, 186 transitions, 620 flow. Second operand 5 states and 546 transitions. [2024-10-13 16:47:11,615 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 172 places, 267 transitions, 1266 flow [2024-10-13 16:47:11,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 267 transitions, 1264 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:47:11,788 INFO L231 Difference]: Finished difference. Result has 173 places, 186 transitions, 664 flow [2024-10-13 16:47:11,789 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=616, PETRI_DIFFERENCE_MINUEND_PLACES=167, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=664, PETRI_PLACES=173, PETRI_TRANSITIONS=186} [2024-10-13 16:47:11,789 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 26 predicate places. [2024-10-13 16:47:11,789 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 186 transitions, 664 flow [2024-10-13 16:47:11,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.0) internal successors, (400), 5 states have internal predecessors, (400), 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) [2024-10-13 16:47:11,789 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:47:11,790 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:47:11,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-13 16:47:11,790 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:47:11,790 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:47:11,790 INFO L85 PathProgramCache]: Analyzing trace with hash -1323791330, now seen corresponding path program 1 times [2024-10-13 16:47:11,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:47:11,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324918719] [2024-10-13 16:47:11,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:11,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:47:11,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:11,866 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:47:11,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:47:11,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324918719] [2024-10-13 16:47:11,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324918719] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:47:11,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:47:11,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:47:11,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108873114] [2024-10-13 16:47:11,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:47:11,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:47:11,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:47:11,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:47:11,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:47:11,903 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-10-13 16:47:11,904 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 186 transitions, 664 flow. Second operand has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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) [2024-10-13 16:47:11,904 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:47:11,904 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-10-13 16:47:11,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:47:13,899 INFO L124 PetriNetUnfolderBase]: 10854/23385 cut-off events. [2024-10-13 16:47:13,899 INFO L125 PetriNetUnfolderBase]: For 14497/14838 co-relation queries the response was YES. [2024-10-13 16:47:13,977 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52057 conditions, 23385 events. 10854/23385 cut-off events. For 14497/14838 co-relation queries the response was YES. Maximal size of possible extension queue 773. Compared 225912 event pairs, 5825 based on Foata normal form. 385/21945 useless extension candidates. Maximal degree in co-relation 38516. Up to 12180 conditions per place. [2024-10-13 16:47:14,044 INFO L140 encePairwiseOnDemand]: 159/169 looper letters, 189 selfloop transitions, 9 changer transitions 0/266 dead transitions. [2024-10-13 16:47:14,044 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 266 transitions, 1298 flow [2024-10-13 16:47:14,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:47:14,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:47:14,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 462 transitions. [2024-10-13 16:47:14,045 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6834319526627219 [2024-10-13 16:47:14,046 INFO L175 Difference]: Start difference. First operand has 173 places, 186 transitions, 664 flow. Second operand 4 states and 462 transitions. [2024-10-13 16:47:14,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 266 transitions, 1298 flow [2024-10-13 16:47:14,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 266 transitions, 1282 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 16:47:14,197 INFO L231 Difference]: Finished difference. Result has 173 places, 184 transitions, 654 flow [2024-10-13 16:47:14,197 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=636, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=654, PETRI_PLACES=173, PETRI_TRANSITIONS=184} [2024-10-13 16:47:14,198 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 26 predicate places. [2024-10-13 16:47:14,198 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 184 transitions, 654 flow [2024-10-13 16:47:14,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.5) internal successors, (314), 4 states have internal predecessors, (314), 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) [2024-10-13 16:47:14,198 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:47:14,198 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:47:14,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-13 16:47:14,199 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:47:14,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:47:14,199 INFO L85 PathProgramCache]: Analyzing trace with hash 477805948, now seen corresponding path program 1 times [2024-10-13 16:47:14,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:47:14,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204600307] [2024-10-13 16:47:14,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:14,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:47:14,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:14,274 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:47:14,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:47:14,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204600307] [2024-10-13 16:47:14,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204600307] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:47:14,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:47:14,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:47:14,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035616037] [2024-10-13 16:47:14,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:47:14,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:47:14,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:47:14,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:47:14,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:47:14,305 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-10-13 16:47:14,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 184 transitions, 654 flow. Second operand has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:47:14,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:47:14,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-10-13 16:47:14,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:47:15,910 INFO L124 PetriNetUnfolderBase]: 10920/24469 cut-off events. [2024-10-13 16:47:15,910 INFO L125 PetriNetUnfolderBase]: For 15742/15983 co-relation queries the response was YES. [2024-10-13 16:47:16,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53665 conditions, 24469 events. 10920/24469 cut-off events. For 15742/15983 co-relation queries the response was YES. Maximal size of possible extension queue 800. Compared 245471 event pairs, 6100 based on Foata normal form. 195/22454 useless extension candidates. Maximal degree in co-relation 40858. Up to 12714 conditions per place. [2024-10-13 16:47:16,128 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 149 selfloop transitions, 7 changer transitions 0/228 dead transitions. [2024-10-13 16:47:16,129 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 228 transitions, 1172 flow [2024-10-13 16:47:16,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:47:16,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:47:16,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 440 transitions. [2024-10-13 16:47:16,130 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.650887573964497 [2024-10-13 16:47:16,130 INFO L175 Difference]: Start difference. First operand has 173 places, 184 transitions, 654 flow. Second operand 4 states and 440 transitions. [2024-10-13 16:47:16,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 228 transitions, 1172 flow [2024-10-13 16:47:16,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 173 places, 228 transitions, 1148 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 16:47:16,304 INFO L231 Difference]: Finished difference. Result has 174 places, 184 transitions, 665 flow [2024-10-13 16:47:16,305 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=639, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=665, PETRI_PLACES=174, PETRI_TRANSITIONS=184} [2024-10-13 16:47:16,305 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 27 predicate places. [2024-10-13 16:47:16,305 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 184 transitions, 665 flow [2024-10-13 16:47:16,305 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:47:16,305 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:47:16,306 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:47:16,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-13 16:47:16,306 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:47:16,306 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:47:16,306 INFO L85 PathProgramCache]: Analyzing trace with hash 1912111665, now seen corresponding path program 1 times [2024-10-13 16:47:16,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:47:16,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1303719372] [2024-10-13 16:47:16,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:16,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:47:16,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:16,412 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:47:16,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:47:16,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1303719372] [2024-10-13 16:47:16,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1303719372] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:47:16,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:47:16,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 16:47:16,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678404371] [2024-10-13 16:47:16,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:47:16,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 16:47:16,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:47:16,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 16:47:16,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 16:47:16,463 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 169 [2024-10-13 16:47:16,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 184 transitions, 665 flow. Second operand has 6 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 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) [2024-10-13 16:47:16,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:47:16,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 169 [2024-10-13 16:47:16,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:47:18,614 INFO L124 PetriNetUnfolderBase]: 13089/26010 cut-off events. [2024-10-13 16:47:18,614 INFO L125 PetriNetUnfolderBase]: For 18712/19201 co-relation queries the response was YES. [2024-10-13 16:47:18,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60362 conditions, 26010 events. 13089/26010 cut-off events. For 18712/19201 co-relation queries the response was YES. Maximal size of possible extension queue 783. Compared 237783 event pairs, 6724 based on Foata normal form. 573/24632 useless extension candidates. Maximal degree in co-relation 45118. Up to 13834 conditions per place. [2024-10-13 16:47:18,878 INFO L140 encePairwiseOnDemand]: 156/169 looper letters, 314 selfloop transitions, 13 changer transitions 0/391 dead transitions. [2024-10-13 16:47:18,878 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 391 transitions, 2045 flow [2024-10-13 16:47:18,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 16:47:18,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 16:47:18,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 835 transitions. [2024-10-13 16:47:18,881 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.617603550295858 [2024-10-13 16:47:18,881 INFO L175 Difference]: Start difference. First operand has 174 places, 184 transitions, 665 flow. Second operand 8 states and 835 transitions. [2024-10-13 16:47:18,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 391 transitions, 2045 flow [2024-10-13 16:47:19,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 391 transitions, 2012 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 16:47:19,151 INFO L231 Difference]: Finished difference. Result has 182 places, 186 transitions, 714 flow [2024-10-13 16:47:19,151 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=655, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=714, PETRI_PLACES=182, PETRI_TRANSITIONS=186} [2024-10-13 16:47:19,152 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 35 predicate places. [2024-10-13 16:47:19,152 INFO L471 AbstractCegarLoop]: Abstraction has has 182 places, 186 transitions, 714 flow [2024-10-13 16:47:19,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.5) internal successors, (441), 6 states have internal predecessors, (441), 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) [2024-10-13 16:47:19,152 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:47:19,152 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:47:19,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-13 16:47:19,153 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:47:19,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:47:19,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1927052487, now seen corresponding path program 1 times [2024-10-13 16:47:19,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:47:19,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695389617] [2024-10-13 16:47:19,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:19,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:47:19,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:19,215 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:47:19,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:47:19,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695389617] [2024-10-13 16:47:19,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695389617] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:47:19,215 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:47:19,215 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 16:47:19,215 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560937220] [2024-10-13 16:47:19,215 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:47:19,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:47:19,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:47:19,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:47:19,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:47:19,237 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 169 [2024-10-13 16:47:19,238 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 182 places, 186 transitions, 714 flow. Second operand has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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) [2024-10-13 16:47:19,238 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:47:19,238 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 169 [2024-10-13 16:47:19,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:47:20,948 INFO L124 PetriNetUnfolderBase]: 11310/24706 cut-off events. [2024-10-13 16:47:20,948 INFO L125 PetriNetUnfolderBase]: For 26137/26723 co-relation queries the response was YES. [2024-10-13 16:47:21,098 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58268 conditions, 24706 events. 11310/24706 cut-off events. For 26137/26723 co-relation queries the response was YES. Maximal size of possible extension queue 795. Compared 243246 event pairs, 6670 based on Foata normal form. 541/23271 useless extension candidates. Maximal degree in co-relation 55018. Up to 13762 conditions per place. [2024-10-13 16:47:21,193 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 155 selfloop transitions, 7 changer transitions 0/230 dead transitions. [2024-10-13 16:47:21,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 230 transitions, 1259 flow [2024-10-13 16:47:21,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:47:21,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:47:21,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 431 transitions. [2024-10-13 16:47:21,196 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6375739644970414 [2024-10-13 16:47:21,196 INFO L175 Difference]: Start difference. First operand has 182 places, 186 transitions, 714 flow. Second operand 4 states and 431 transitions. [2024-10-13 16:47:21,196 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 230 transitions, 1259 flow [2024-10-13 16:47:21,493 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 230 transitions, 1240 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-10-13 16:47:21,495 INFO L231 Difference]: Finished difference. Result has 181 places, 185 transitions, 713 flow [2024-10-13 16:47:21,496 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=699, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=713, PETRI_PLACES=181, PETRI_TRANSITIONS=185} [2024-10-13 16:47:21,496 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 34 predicate places. [2024-10-13 16:47:21,496 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 185 transitions, 713 flow [2024-10-13 16:47:21,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.75) internal successors, (331), 4 states have internal predecessors, (331), 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) [2024-10-13 16:47:21,496 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:47:21,497 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:47:21,497 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-13 16:47:21,497 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:47:21,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:47:21,497 INFO L85 PathProgramCache]: Analyzing trace with hash 92837097, now seen corresponding path program 1 times [2024-10-13 16:47:21,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:47:21,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517494277] [2024-10-13 16:47:21,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:21,498 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:47:21,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:21,566 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:47:21,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:47:21,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517494277] [2024-10-13 16:47:21,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517494277] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:47:21,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:47:21,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:47:21,567 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79307720] [2024-10-13 16:47:21,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:47:21,567 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:47:21,568 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:47:21,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:47:21,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:47:21,599 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-10-13 16:47:21,600 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 185 transitions, 713 flow. Second operand has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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) [2024-10-13 16:47:21,600 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:47:21,600 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-10-13 16:47:21,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:47:23,367 INFO L124 PetriNetUnfolderBase]: 12176/25183 cut-off events. [2024-10-13 16:47:23,367 INFO L125 PetriNetUnfolderBase]: For 23795/24183 co-relation queries the response was YES. [2024-10-13 16:47:23,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60549 conditions, 25183 events. 12176/25183 cut-off events. For 23795/24183 co-relation queries the response was YES. Maximal size of possible extension queue 799. Compared 238058 event pairs, 6403 based on Foata normal form. 510/24031 useless extension candidates. Maximal degree in co-relation 57521. Up to 13342 conditions per place. [2024-10-13 16:47:23,511 INFO L140 encePairwiseOnDemand]: 159/169 looper letters, 190 selfloop transitions, 10 changer transitions 0/266 dead transitions. [2024-10-13 16:47:23,512 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 266 transitions, 1405 flow [2024-10-13 16:47:23,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:47:23,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:47:23,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 458 transitions. [2024-10-13 16:47:23,513 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6775147928994083 [2024-10-13 16:47:23,513 INFO L175 Difference]: Start difference. First operand has 181 places, 185 transitions, 713 flow. Second operand 4 states and 458 transitions. [2024-10-13 16:47:23,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 266 transitions, 1405 flow [2024-10-13 16:47:23,802 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 178 places, 266 transitions, 1373 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-13 16:47:23,804 INFO L231 Difference]: Finished difference. Result has 179 places, 184 transitions, 721 flow [2024-10-13 16:47:23,804 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=683, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=721, PETRI_PLACES=179, PETRI_TRANSITIONS=184} [2024-10-13 16:47:23,805 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 32 predicate places. [2024-10-13 16:47:23,805 INFO L471 AbstractCegarLoop]: Abstraction has has 179 places, 184 transitions, 721 flow [2024-10-13 16:47:23,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.75) internal successors, (315), 4 states have internal predecessors, (315), 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) [2024-10-13 16:47:23,805 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:47:23,805 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:47:23,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-13 16:47:23,805 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:47:23,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:47:23,806 INFO L85 PathProgramCache]: Analyzing trace with hash -198460225, now seen corresponding path program 1 times [2024-10-13 16:47:23,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:47:23,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2114505675] [2024-10-13 16:47:23,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:23,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:47:23,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:23,868 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:47:23,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:47:23,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2114505675] [2024-10-13 16:47:23,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2114505675] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:47:23,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:47:23,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 16:47:23,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308310808] [2024-10-13 16:47:23,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:47:23,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:47:23,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:47:23,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:47:23,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:47:23,878 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-10-13 16:47:23,878 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 179 places, 184 transitions, 721 flow. Second operand has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:47:23,878 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:47:23,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-10-13 16:47:23,879 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:47:25,396 INFO L124 PetriNetUnfolderBase]: 9724/20463 cut-off events. [2024-10-13 16:47:25,396 INFO L125 PetriNetUnfolderBase]: For 23436/24057 co-relation queries the response was YES. [2024-10-13 16:47:25,469 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48862 conditions, 20463 events. 9724/20463 cut-off events. For 23436/24057 co-relation queries the response was YES. Maximal size of possible extension queue 660. Compared 188303 event pairs, 5163 based on Foata normal form. 604/19605 useless extension candidates. Maximal degree in co-relation 46359. Up to 10520 conditions per place. [2024-10-13 16:47:25,539 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 243 selfloop transitions, 4 changer transitions 22/337 dead transitions. [2024-10-13 16:47:25,539 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 337 transitions, 2018 flow [2024-10-13 16:47:25,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 16:47:25,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 16:47:25,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 614 transitions. [2024-10-13 16:47:25,542 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7266272189349112 [2024-10-13 16:47:25,542 INFO L175 Difference]: Start difference. First operand has 179 places, 184 transitions, 721 flow. Second operand 5 states and 614 transitions. [2024-10-13 16:47:25,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 337 transitions, 2018 flow [2024-10-13 16:47:25,668 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 337 transitions, 1973 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-10-13 16:47:25,670 INFO L231 Difference]: Finished difference. Result has 184 places, 186 transitions, 734 flow [2024-10-13 16:47:25,670 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=709, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=734, PETRI_PLACES=184, PETRI_TRANSITIONS=186} [2024-10-13 16:47:25,671 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 37 predicate places. [2024-10-13 16:47:25,671 INFO L471 AbstractCegarLoop]: Abstraction has has 184 places, 186 transitions, 734 flow [2024-10-13 16:47:25,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:47:25,671 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:47:25,671 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:47:25,671 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-13 16:47:25,671 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:47:25,672 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:47:25,672 INFO L85 PathProgramCache]: Analyzing trace with hash -160254261, now seen corresponding path program 1 times [2024-10-13 16:47:25,672 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:47:25,672 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [886872161] [2024-10-13 16:47:25,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:25,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:47:25,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:25,747 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:47:25,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:47:25,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [886872161] [2024-10-13 16:47:25,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [886872161] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:47:25,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:47:25,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:47:25,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1648095793] [2024-10-13 16:47:25,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:47:25,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:47:25,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:47:25,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:47:25,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:47:25,768 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-10-13 16:47:25,769 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 186 transitions, 734 flow. Second operand has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 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) [2024-10-13 16:47:25,769 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:47:25,769 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-10-13 16:47:25,769 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:47:27,402 INFO L124 PetriNetUnfolderBase]: 10058/20653 cut-off events. [2024-10-13 16:47:27,402 INFO L125 PetriNetUnfolderBase]: For 22743/23384 co-relation queries the response was YES. [2024-10-13 16:47:27,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50084 conditions, 20653 events. 10058/20653 cut-off events. For 22743/23384 co-relation queries the response was YES. Maximal size of possible extension queue 658. Compared 185915 event pairs, 5888 based on Foata normal form. 723/20102 useless extension candidates. Maximal degree in co-relation 47652. Up to 11850 conditions per place. [2024-10-13 16:47:27,569 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 220 selfloop transitions, 3 changer transitions 0/289 dead transitions. [2024-10-13 16:47:27,569 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 289 transitions, 1666 flow [2024-10-13 16:47:27,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:47:27,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:47:27,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 490 transitions. [2024-10-13 16:47:27,570 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7248520710059172 [2024-10-13 16:47:27,570 INFO L175 Difference]: Start difference. First operand has 184 places, 186 transitions, 734 flow. Second operand 4 states and 490 transitions. [2024-10-13 16:47:27,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 289 transitions, 1666 flow [2024-10-13 16:47:27,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 289 transitions, 1664 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:47:27,690 INFO L231 Difference]: Finished difference. Result has 188 places, 187 transitions, 750 flow [2024-10-13 16:47:27,691 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=732, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=750, PETRI_PLACES=188, PETRI_TRANSITIONS=187} [2024-10-13 16:47:27,691 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 41 predicate places. [2024-10-13 16:47:27,692 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 187 transitions, 750 flow [2024-10-13 16:47:27,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.75) internal successors, (343), 4 states have internal predecessors, (343), 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) [2024-10-13 16:47:27,693 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:47:27,693 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:47:27,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-10-13 16:47:27,693 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:47:27,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:47:27,694 INFO L85 PathProgramCache]: Analyzing trace with hash -390913274, now seen corresponding path program 1 times [2024-10-13 16:47:27,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:47:27,694 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729112682] [2024-10-13 16:47:27,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:27,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:47:27,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:27,764 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:47:27,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:47:27,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729112682] [2024-10-13 16:47:27,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729112682] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:47:27,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:47:27,765 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:47:27,765 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579071581] [2024-10-13 16:47:27,765 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:47:27,766 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:47:27,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:47:27,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:47:27,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:47:27,792 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-10-13 16:47:27,793 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 187 transitions, 750 flow. Second operand has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 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) [2024-10-13 16:47:27,793 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:47:27,793 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-10-13 16:47:27,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:47:29,423 INFO L124 PetriNetUnfolderBase]: 10159/21384 cut-off events. [2024-10-13 16:47:29,424 INFO L125 PetriNetUnfolderBase]: For 24366/24886 co-relation queries the response was YES. [2024-10-13 16:47:29,543 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52357 conditions, 21384 events. 10159/21384 cut-off events. For 24366/24886 co-relation queries the response was YES. Maximal size of possible extension queue 667. Compared 196683 event pairs, 5796 based on Foata normal form. 620/20534 useless extension candidates. Maximal degree in co-relation 49700. Up to 11770 conditions per place. [2024-10-13 16:47:29,610 INFO L140 encePairwiseOnDemand]: 159/169 looper letters, 208 selfloop transitions, 9 changer transitions 0/279 dead transitions. [2024-10-13 16:47:29,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 279 transitions, 1640 flow [2024-10-13 16:47:29,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:47:29,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:47:29,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 460 transitions. [2024-10-13 16:47:29,612 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6804733727810651 [2024-10-13 16:47:29,612 INFO L175 Difference]: Start difference. First operand has 188 places, 187 transitions, 750 flow. Second operand 4 states and 460 transitions. [2024-10-13 16:47:29,612 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 279 transitions, 1640 flow [2024-10-13 16:47:29,766 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 189 places, 279 transitions, 1632 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 16:47:29,769 INFO L231 Difference]: Finished difference. Result has 189 places, 185 transitions, 748 flow [2024-10-13 16:47:29,769 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=730, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=176, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=748, PETRI_PLACES=189, PETRI_TRANSITIONS=185} [2024-10-13 16:47:29,769 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 42 predicate places. [2024-10-13 16:47:29,769 INFO L471 AbstractCegarLoop]: Abstraction has has 189 places, 185 transitions, 748 flow [2024-10-13 16:47:29,770 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.0) internal successors, (316), 4 states have internal predecessors, (316), 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) [2024-10-13 16:47:29,770 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:47:29,770 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:47:29,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-10-13 16:47:29,770 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:47:29,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:47:29,770 INFO L85 PathProgramCache]: Analyzing trace with hash -390914299, now seen corresponding path program 1 times [2024-10-13 16:47:29,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:47:29,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429095861] [2024-10-13 16:47:29,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:29,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:47:29,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:29,894 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:47:29,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:47:29,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429095861] [2024-10-13 16:47:29,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429095861] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:47:29,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:47:29,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:47:29,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [543777200] [2024-10-13 16:47:29,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:47:29,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 16:47:29,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:47:29,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 16:47:29,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-13 16:47:29,941 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 169 [2024-10-13 16:47:29,941 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 185 transitions, 748 flow. Second operand has 5 states, 5 states have (on average 80.4) internal successors, (402), 5 states have internal predecessors, (402), 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) [2024-10-13 16:47:29,941 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:47:29,941 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 169 [2024-10-13 16:47:29,941 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:47:31,767 INFO L124 PetriNetUnfolderBase]: 11495/22401 cut-off events. [2024-10-13 16:47:31,768 INFO L125 PetriNetUnfolderBase]: For 25371/26081 co-relation queries the response was YES. [2024-10-13 16:47:31,897 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56835 conditions, 22401 events. 11495/22401 cut-off events. For 25371/26081 co-relation queries the response was YES. Maximal size of possible extension queue 651. Compared 193094 event pairs, 5796 based on Foata normal form. 546/21791 useless extension candidates. Maximal degree in co-relation 54043. Up to 11769 conditions per place. [2024-10-13 16:47:31,964 INFO L140 encePairwiseOnDemand]: 158/169 looper letters, 206 selfloop transitions, 12 changer transitions 0/278 dead transitions. [2024-10-13 16:47:31,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 278 transitions, 1650 flow [2024-10-13 16:47:31,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-13 16:47:31,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-13 16:47:31,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 544 transitions. [2024-10-13 16:47:31,965 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6437869822485207 [2024-10-13 16:47:31,965 INFO L175 Difference]: Start difference. First operand has 189 places, 185 transitions, 748 flow. Second operand 5 states and 544 transitions. [2024-10-13 16:47:31,965 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 278 transitions, 1650 flow [2024-10-13 16:47:32,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 278 transitions, 1637 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 16:47:32,116 INFO L231 Difference]: Finished difference. Result has 192 places, 185 transitions, 781 flow [2024-10-13 16:47:32,117 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=733, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=781, PETRI_PLACES=192, PETRI_TRANSITIONS=185} [2024-10-13 16:47:32,117 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 45 predicate places. [2024-10-13 16:47:32,117 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 185 transitions, 781 flow [2024-10-13 16:47:32,117 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.4) internal successors, (402), 5 states have internal predecessors, (402), 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) [2024-10-13 16:47:32,117 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:47:32,117 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:47:32,117 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-10-13 16:47:32,117 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:47:32,118 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:47:32,118 INFO L85 PathProgramCache]: Analyzing trace with hash 766560401, now seen corresponding path program 1 times [2024-10-13 16:47:32,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:47:32,118 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996284897] [2024-10-13 16:47:32,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:32,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:47:32,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:32,221 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:47:32,222 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:47:32,222 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996284897] [2024-10-13 16:47:32,222 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996284897] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:47:32,222 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:47:32,222 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-13 16:47:32,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1459278400] [2024-10-13 16:47:32,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:47:32,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 16:47:32,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:47:32,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 16:47:32,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-10-13 16:47:32,263 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 169 [2024-10-13 16:47:32,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 185 transitions, 781 flow. Second operand has 6 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 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) [2024-10-13 16:47:32,263 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:47:32,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 169 [2024-10-13 16:47:32,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:47:34,369 INFO L124 PetriNetUnfolderBase]: 11662/22380 cut-off events. [2024-10-13 16:47:34,369 INFO L125 PetriNetUnfolderBase]: For 30240/30962 co-relation queries the response was YES. [2024-10-13 16:47:34,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58902 conditions, 22380 events. 11662/22380 cut-off events. For 30240/30962 co-relation queries the response was YES. Maximal size of possible extension queue 654. Compared 190008 event pairs, 6231 based on Foata normal form. 857/22170 useless extension candidates. Maximal degree in co-relation 56048. Up to 12567 conditions per place. [2024-10-13 16:47:34,653 INFO L140 encePairwiseOnDemand]: 156/169 looper letters, 345 selfloop transitions, 13 changer transitions 0/417 dead transitions. [2024-10-13 16:47:34,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 417 transitions, 2663 flow [2024-10-13 16:47:34,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-13 16:47:34,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-13 16:47:34,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 830 transitions. [2024-10-13 16:47:34,654 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.613905325443787 [2024-10-13 16:47:34,654 INFO L175 Difference]: Start difference. First operand has 192 places, 185 transitions, 781 flow. Second operand 8 states and 830 transitions. [2024-10-13 16:47:34,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 417 transitions, 2663 flow [2024-10-13 16:47:34,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 417 transitions, 2653 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-13 16:47:34,882 INFO L231 Difference]: Finished difference. Result has 200 places, 187 transitions, 828 flow [2024-10-13 16:47:34,882 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=769, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=184, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=828, PETRI_PLACES=200, PETRI_TRANSITIONS=187} [2024-10-13 16:47:34,883 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 53 predicate places. [2024-10-13 16:47:34,883 INFO L471 AbstractCegarLoop]: Abstraction has has 200 places, 187 transitions, 828 flow [2024-10-13 16:47:34,883 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 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) [2024-10-13 16:47:34,884 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:47:34,884 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:47:34,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-10-13 16:47:34,884 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:47:34,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:47:34,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1059513647, now seen corresponding path program 1 times [2024-10-13 16:47:34,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:47:34,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [591785543] [2024-10-13 16:47:34,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:34,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:47:34,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:34,945 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:47:34,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:47:34,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [591785543] [2024-10-13 16:47:34,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [591785543] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:47:34,946 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:47:34,946 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:47:34,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975144595] [2024-10-13 16:47:34,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:47:34,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:47:34,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:47:34,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:47:34,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:47:34,983 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-10-13 16:47:34,983 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 187 transitions, 828 flow. Second operand has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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) [2024-10-13 16:47:34,983 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:47:34,983 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-10-13 16:47:34,983 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:47:36,712 INFO L124 PetriNetUnfolderBase]: 10827/21496 cut-off events. [2024-10-13 16:47:36,713 INFO L125 PetriNetUnfolderBase]: For 35470/36099 co-relation queries the response was YES. [2024-10-13 16:47:36,810 INFO L83 FinitePrefix]: Finished finitePrefix Result has 58665 conditions, 21496 events. 10827/21496 cut-off events. For 35470/36099 co-relation queries the response was YES. Maximal size of possible extension queue 658. Compared 188024 event pairs, 5941 based on Foata normal form. 723/21533 useless extension candidates. Maximal degree in co-relation 55807. Up to 12135 conditions per place. [2024-10-13 16:47:36,865 INFO L140 encePairwiseOnDemand]: 159/169 looper letters, 206 selfloop transitions, 10 changer transitions 0/278 dead transitions. [2024-10-13 16:47:36,866 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 278 transitions, 1726 flow [2024-10-13 16:47:36,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:47:36,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:47:36,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 456 transitions. [2024-10-13 16:47:36,867 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6745562130177515 [2024-10-13 16:47:36,867 INFO L175 Difference]: Start difference. First operand has 200 places, 187 transitions, 828 flow. Second operand 4 states and 456 transitions. [2024-10-13 16:47:36,867 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 278 transitions, 1726 flow [2024-10-13 16:47:37,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 278 transitions, 1709 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-10-13 16:47:37,108 INFO L231 Difference]: Finished difference. Result has 198 places, 186 transitions, 839 flow [2024-10-13 16:47:37,108 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=801, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=185, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=839, PETRI_PLACES=198, PETRI_TRANSITIONS=186} [2024-10-13 16:47:37,109 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 51 predicate places. [2024-10-13 16:47:37,109 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 186 transitions, 839 flow [2024-10-13 16:47:37,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 79.25) internal successors, (317), 4 states have internal predecessors, (317), 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) [2024-10-13 16:47:37,109 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:47:37,109 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:47:37,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-10-13 16:47:37,109 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:47:37,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:47:37,110 INFO L85 PathProgramCache]: Analyzing trace with hash -1824690144, now seen corresponding path program 1 times [2024-10-13 16:47:37,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:47:37,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642557971] [2024-10-13 16:47:37,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:37,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:47:37,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:37,182 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:47:37,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:47:37,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642557971] [2024-10-13 16:47:37,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642557971] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:47:37,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1953230398] [2024-10-13 16:47:37,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:37,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:47:37,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:47:37,184 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:47:37,185 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-13 16:47:37,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:37,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:47:37,321 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:47:37,342 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:47:37,342 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:47:37,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1953230398] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:47:37,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:47:37,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-13 16:47:37,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138231131] [2024-10-13 16:47:37,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:47:37,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 16:47:37,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:47:37,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 16:47:37,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-13 16:47:37,356 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-10-13 16:47:37,357 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 186 transitions, 839 flow. Second operand has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 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) [2024-10-13 16:47:37,357 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:47:37,357 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-10-13 16:47:37,357 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:47:39,187 INFO L124 PetriNetUnfolderBase]: 9939/19683 cut-off events. [2024-10-13 16:47:39,187 INFO L125 PetriNetUnfolderBase]: For 35549/36502 co-relation queries the response was YES. [2024-10-13 16:47:39,281 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54586 conditions, 19683 events. 9939/19683 cut-off events. For 35549/36502 co-relation queries the response was YES. Maximal size of possible extension queue 615. Compared 172271 event pairs, 2110 based on Foata normal form. 1018/20214 useless extension candidates. Maximal degree in co-relation 52107. Up to 7038 conditions per place. [2024-10-13 16:47:39,340 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 317 selfloop transitions, 5 changer transitions 0/384 dead transitions. [2024-10-13 16:47:39,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 384 transitions, 2479 flow [2024-10-13 16:47:39,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 16:47:39,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 16:47:39,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 725 transitions. [2024-10-13 16:47:39,342 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7149901380670611 [2024-10-13 16:47:39,342 INFO L175 Difference]: Start difference. First operand has 198 places, 186 transitions, 839 flow. Second operand 6 states and 725 transitions. [2024-10-13 16:47:39,342 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 384 transitions, 2479 flow [2024-10-13 16:47:39,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 384 transitions, 2423 flow, removed 5 selfloop flow, removed 2 redundant places. [2024-10-13 16:47:39,548 INFO L231 Difference]: Finished difference. Result has 198 places, 183 transitions, 825 flow [2024-10-13 16:47:39,548 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=815, PETRI_DIFFERENCE_MINUEND_PLACES=193, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=825, PETRI_PLACES=198, PETRI_TRANSITIONS=183} [2024-10-13 16:47:39,549 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 51 predicate places. [2024-10-13 16:47:39,549 INFO L471 AbstractCegarLoop]: Abstraction has has 198 places, 183 transitions, 825 flow [2024-10-13 16:47:39,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.0) internal successors, (425), 5 states have internal predecessors, (425), 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) [2024-10-13 16:47:39,549 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:47:39,549 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:47:39,562 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-13 16:47:39,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:47:39,750 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:47:39,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:47:39,751 INFO L85 PathProgramCache]: Analyzing trace with hash -730817931, now seen corresponding path program 1 times [2024-10-13 16:47:39,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:47:39,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976452455] [2024-10-13 16:47:39,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:39,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:47:39,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:39,875 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:47:39,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:47:39,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976452455] [2024-10-13 16:47:39,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976452455] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:47:39,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752988124] [2024-10-13 16:47:39,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:39,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:47:39,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:47:39,877 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:47:39,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-13 16:47:40,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:40,024 INFO L255 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:47:40,026 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:47:40,048 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-13 16:47:40,048 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:47:40,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752988124] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:47:40,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:47:40,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-10-13 16:47:40,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326699673] [2024-10-13 16:47:40,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:47:40,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:47:40,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:47:40,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:47:40,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-13 16:47:40,055 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-10-13 16:47:40,056 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 198 places, 183 transitions, 825 flow. Second operand has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2024-10-13 16:47:40,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:47:40,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-10-13 16:47:40,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:47:41,680 INFO L124 PetriNetUnfolderBase]: 9443/19413 cut-off events. [2024-10-13 16:47:41,681 INFO L125 PetriNetUnfolderBase]: For 32328/33081 co-relation queries the response was YES. [2024-10-13 16:47:41,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52798 conditions, 19413 events. 9443/19413 cut-off events. For 32328/33081 co-relation queries the response was YES. Maximal size of possible extension queue 597. Compared 174317 event pairs, 4796 based on Foata normal form. 830/19710 useless extension candidates. Maximal degree in co-relation 50240. Up to 9547 conditions per place. [2024-10-13 16:47:41,864 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 167 selfloop transitions, 4 changer transitions 0/234 dead transitions. [2024-10-13 16:47:41,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 234 transitions, 1406 flow [2024-10-13 16:47:41,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:47:41,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:47:41,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 370 transitions. [2024-10-13 16:47:41,866 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7297830374753451 [2024-10-13 16:47:41,866 INFO L175 Difference]: Start difference. First operand has 198 places, 183 transitions, 825 flow. Second operand 3 states and 370 transitions. [2024-10-13 16:47:41,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 234 transitions, 1406 flow [2024-10-13 16:47:42,052 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 234 transitions, 1393 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-10-13 16:47:42,055 INFO L231 Difference]: Finished difference. Result has 194 places, 182 transitions, 820 flow [2024-10-13 16:47:42,055 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=804, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=820, PETRI_PLACES=194, PETRI_TRANSITIONS=182} [2024-10-13 16:47:42,056 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 47 predicate places. [2024-10-13 16:47:42,056 INFO L471 AbstractCegarLoop]: Abstraction has has 194 places, 182 transitions, 820 flow [2024-10-13 16:47:42,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.33333333333333) internal successors, (268), 3 states have internal predecessors, (268), 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) [2024-10-13 16:47:42,056 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:47:42,056 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:47:42,070 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-13 16:47:42,257 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-13 16:47:42,257 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:47:42,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:47:42,257 INFO L85 PathProgramCache]: Analyzing trace with hash -1832036224, now seen corresponding path program 1 times [2024-10-13 16:47:42,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:47:42,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567987783] [2024-10-13 16:47:42,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:42,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:47:42,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:42,339 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:47:42,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:47:42,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567987783] [2024-10-13 16:47:42,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567987783] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:47:42,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1092544638] [2024-10-13 16:47:42,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:42,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:47:42,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:47:42,343 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:47:42,344 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-13 16:47:42,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:42,494 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:47:42,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:47:42,518 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:47:42,519 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:47:42,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1092544638] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:47:42,519 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:47:42,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-13 16:47:42,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3576826] [2024-10-13 16:47:42,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:47:42,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 16:47:42,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:47:42,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 16:47:42,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-13 16:47:42,531 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-10-13 16:47:42,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 182 transitions, 820 flow. Second operand has 5 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 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) [2024-10-13 16:47:42,532 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:47:42,532 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-10-13 16:47:42,532 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:47:44,408 INFO L124 PetriNetUnfolderBase]: 10205/20308 cut-off events. [2024-10-13 16:47:44,409 INFO L125 PetriNetUnfolderBase]: For 34193/35101 co-relation queries the response was YES. [2024-10-13 16:47:44,617 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55734 conditions, 20308 events. 10205/20308 cut-off events. For 34193/35101 co-relation queries the response was YES. Maximal size of possible extension queue 612. Compared 176527 event pairs, 2275 based on Foata normal form. 1000/20993 useless extension candidates. Maximal degree in co-relation 53490. Up to 7144 conditions per place. [2024-10-13 16:47:44,683 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 316 selfloop transitions, 5 changer transitions 0/378 dead transitions. [2024-10-13 16:47:44,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 378 transitions, 2452 flow [2024-10-13 16:47:44,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 16:47:44,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 16:47:44,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 719 transitions. [2024-10-13 16:47:44,685 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7090729783037475 [2024-10-13 16:47:44,685 INFO L175 Difference]: Start difference. First operand has 194 places, 182 transitions, 820 flow. Second operand 6 states and 719 transitions. [2024-10-13 16:47:44,685 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 378 transitions, 2452 flow [2024-10-13 16:47:44,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 378 transitions, 2432 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:47:44,919 INFO L231 Difference]: Finished difference. Result has 195 places, 179 transitions, 814 flow [2024-10-13 16:47:44,920 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=804, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=179, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=174, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=814, PETRI_PLACES=195, PETRI_TRANSITIONS=179} [2024-10-13 16:47:44,920 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 48 predicate places. [2024-10-13 16:47:44,921 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 179 transitions, 814 flow [2024-10-13 16:47:44,921 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 85.4) internal successors, (427), 5 states have internal predecessors, (427), 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) [2024-10-13 16:47:44,921 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:47:44,921 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:47:44,935 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-13 16:47:45,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:47:45,122 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:47:45,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:47:45,122 INFO L85 PathProgramCache]: Analyzing trace with hash 2021377686, now seen corresponding path program 1 times [2024-10-13 16:47:45,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:47:45,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272569492] [2024-10-13 16:47:45,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:45,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:47:45,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:45,206 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:47:45,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:47:45,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272569492] [2024-10-13 16:47:45,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [272569492] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:47:45,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1624675290] [2024-10-13 16:47:45,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:45,207 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:47:45,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:47:45,208 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:47:45,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-13 16:47:45,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:45,368 INFO L255 TraceCheckSpWp]: Trace formula consists of 307 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:47:45,369 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:47:45,463 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-13 16:47:45,463 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:47:45,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1624675290] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:47:45,464 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:47:45,464 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2024-10-13 16:47:45,464 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2075602573] [2024-10-13 16:47:45,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:47:45,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:47:45,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:47:45,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:47:45,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-13 16:47:45,501 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-10-13 16:47:45,501 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 179 transitions, 814 flow. Second operand has 4 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 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) [2024-10-13 16:47:45,501 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:47:45,502 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-10-13 16:47:45,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:47:47,263 INFO L124 PetriNetUnfolderBase]: 9857/20508 cut-off events. [2024-10-13 16:47:47,263 INFO L125 PetriNetUnfolderBase]: For 33571/34143 co-relation queries the response was YES. [2024-10-13 16:47:47,415 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56470 conditions, 20508 events. 9857/20508 cut-off events. For 33571/34143 co-relation queries the response was YES. Maximal size of possible extension queue 630. Compared 184101 event pairs, 6095 based on Foata normal form. 512/20660 useless extension candidates. Maximal degree in co-relation 53600. Up to 12260 conditions per place. [2024-10-13 16:47:47,480 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 160 selfloop transitions, 7 changer transitions 0/225 dead transitions. [2024-10-13 16:47:47,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 197 places, 225 transitions, 1390 flow [2024-10-13 16:47:47,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:47:47,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:47:47,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 439 transitions. [2024-10-13 16:47:47,481 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6494082840236687 [2024-10-13 16:47:47,481 INFO L175 Difference]: Start difference. First operand has 195 places, 179 transitions, 814 flow. Second operand 4 states and 439 transitions. [2024-10-13 16:47:47,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 197 places, 225 transitions, 1390 flow [2024-10-13 16:47:47,774 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 193 places, 225 transitions, 1368 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-10-13 16:47:47,776 INFO L231 Difference]: Finished difference. Result has 193 places, 178 transitions, 815 flow [2024-10-13 16:47:47,776 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=801, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=815, PETRI_PLACES=193, PETRI_TRANSITIONS=178} [2024-10-13 16:47:47,777 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 46 predicate places. [2024-10-13 16:47:47,777 INFO L471 AbstractCegarLoop]: Abstraction has has 193 places, 178 transitions, 815 flow [2024-10-13 16:47:47,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.25) internal successors, (345), 4 states have internal predecessors, (345), 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) [2024-10-13 16:47:47,777 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:47:47,777 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:47:47,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-10-13 16:47:47,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-10-13 16:47:47,978 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:47:47,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:47:47,978 INFO L85 PathProgramCache]: Analyzing trace with hash -958546339, now seen corresponding path program 1 times [2024-10-13 16:47:47,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:47:47,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839350975] [2024-10-13 16:47:47,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:47,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:47:47,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:48,053 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:47:48,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:47:48,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839350975] [2024-10-13 16:47:48,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [839350975] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:47:48,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2001609604] [2024-10-13 16:47:48,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:48,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:47:48,054 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:47:48,055 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:47:48,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-13 16:47:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:48,210 INFO L255 TraceCheckSpWp]: Trace formula consists of 321 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-10-13 16:47:48,212 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:47:48,223 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-13 16:47:48,223 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:47:48,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2001609604] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:47:48,223 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:47:48,223 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-10-13 16:47:48,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250490437] [2024-10-13 16:47:48,224 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:47:48,224 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-13 16:47:48,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:47:48,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-13 16:47:48,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-10-13 16:47:48,231 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 169 [2024-10-13 16:47:48,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 193 places, 178 transitions, 815 flow. Second operand has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2024-10-13 16:47:48,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:47:48,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 169 [2024-10-13 16:47:48,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:47:49,920 INFO L124 PetriNetUnfolderBase]: 9689/19776 cut-off events. [2024-10-13 16:47:49,920 INFO L125 PetriNetUnfolderBase]: For 33889/34625 co-relation queries the response was YES. [2024-10-13 16:47:50,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54335 conditions, 19776 events. 9689/19776 cut-off events. For 33889/34625 co-relation queries the response was YES. Maximal size of possible extension queue 591. Compared 174882 event pairs, 5011 based on Foata normal form. 820/20241 useless extension candidates. Maximal degree in co-relation 51893. Up to 9873 conditions per place. [2024-10-13 16:47:50,182 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 167 selfloop transitions, 4 changer transitions 0/228 dead transitions. [2024-10-13 16:47:50,183 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 228 transitions, 1412 flow [2024-10-13 16:47:50,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-13 16:47:50,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-13 16:47:50,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 368 transitions. [2024-10-13 16:47:50,183 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7258382642998028 [2024-10-13 16:47:50,184 INFO L175 Difference]: Start difference. First operand has 193 places, 178 transitions, 815 flow. Second operand 3 states and 368 transitions. [2024-10-13 16:47:50,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 228 transitions, 1412 flow [2024-10-13 16:47:50,427 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 228 transitions, 1396 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 16:47:50,429 INFO L231 Difference]: Finished difference. Result has 191 places, 177 transitions, 813 flow [2024-10-13 16:47:50,430 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=797, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=813, PETRI_PLACES=191, PETRI_TRANSITIONS=177} [2024-10-13 16:47:50,430 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 44 predicate places. [2024-10-13 16:47:50,430 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 177 transitions, 813 flow [2024-10-13 16:47:50,430 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.0) internal successors, (270), 3 states have internal predecessors, (270), 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) [2024-10-13 16:47:50,430 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:47:50,430 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:47:50,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-13 16:47:50,631 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-10-13 16:47:50,631 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:47:50,632 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:47:50,632 INFO L85 PathProgramCache]: Analyzing trace with hash -1761831245, now seen corresponding path program 1 times [2024-10-13 16:47:50,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:47:50,632 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574385372] [2024-10-13 16:47:50,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:50,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:47:50,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:50,723 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:47:50,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:47:50,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574385372] [2024-10-13 16:47:50,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574385372] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:47:50,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955927053] [2024-10-13 16:47:50,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:50,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:47:50,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:47:50,728 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:47:50,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-13 16:47:50,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:50,880 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:47:50,881 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:47:50,947 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-13 16:47:50,948 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:47:50,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955927053] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:47:50,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:47:50,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2024-10-13 16:47:50,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092562992] [2024-10-13 16:47:50,948 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:47:50,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:47:50,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:47:50,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:47:50,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-13 16:47:50,975 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 169 [2024-10-13 16:47:50,975 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 177 transitions, 813 flow. Second operand has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:47:50,976 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:47:50,976 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 169 [2024-10-13 16:47:50,976 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:47:52,609 INFO L124 PetriNetUnfolderBase]: 9689/20276 cut-off events. [2024-10-13 16:47:52,609 INFO L125 PetriNetUnfolderBase]: For 34718/35240 co-relation queries the response was YES. [2024-10-13 16:47:52,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55913 conditions, 20276 events. 9689/20276 cut-off events. For 34718/35240 co-relation queries the response was YES. Maximal size of possible extension queue 606. Compared 182692 event pairs, 6395 based on Foata normal form. 582/20708 useless extension candidates. Maximal degree in co-relation 53023. Up to 12804 conditions per place. [2024-10-13 16:47:52,776 INFO L140 encePairwiseOnDemand]: 165/169 looper letters, 163 selfloop transitions, 5 changer transitions 0/224 dead transitions. [2024-10-13 16:47:52,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 224 transitions, 1390 flow [2024-10-13 16:47:52,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:47:52,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:47:52,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 428 transitions. [2024-10-13 16:47:52,777 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6331360946745562 [2024-10-13 16:47:52,777 INFO L175 Difference]: Start difference. First operand has 191 places, 177 transitions, 813 flow. Second operand 4 states and 428 transitions. [2024-10-13 16:47:52,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 224 transitions, 1390 flow [2024-10-13 16:47:53,026 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 224 transitions, 1382 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-13 16:47:53,028 INFO L231 Difference]: Finished difference. Result has 192 places, 176 transitions, 813 flow [2024-10-13 16:47:53,028 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=803, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=813, PETRI_PLACES=192, PETRI_TRANSITIONS=176} [2024-10-13 16:47:53,029 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 45 predicate places. [2024-10-13 16:47:53,029 INFO L471 AbstractCegarLoop]: Abstraction has has 192 places, 176 transitions, 813 flow [2024-10-13 16:47:53,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-13 16:47:53,029 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:47:53,029 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:47:53,042 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-13 16:47:53,229 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-10-13 16:47:53,230 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:47:53,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:47:53,230 INFO L85 PathProgramCache]: Analyzing trace with hash -576461262, now seen corresponding path program 1 times [2024-10-13 16:47:53,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:47:53,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226580636] [2024-10-13 16:47:53,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:53,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:47:53,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:53,315 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-13 16:47:53,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:47:53,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226580636] [2024-10-13 16:47:53,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226580636] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:47:53,315 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:47:53,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:47:53,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917045174] [2024-10-13 16:47:53,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:47:53,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:47:53,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:47:53,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:47:53,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:47:53,327 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-10-13 16:47:53,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 176 transitions, 813 flow. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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) [2024-10-13 16:47:53,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:47:53,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-10-13 16:47:53,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:47:54,930 INFO L124 PetriNetUnfolderBase]: 9683/19500 cut-off events. [2024-10-13 16:47:54,930 INFO L125 PetriNetUnfolderBase]: For 35902/36667 co-relation queries the response was YES. [2024-10-13 16:47:55,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54053 conditions, 19500 events. 9683/19500 cut-off events. For 35902/36667 co-relation queries the response was YES. Maximal size of possible extension queue 572. Compared 171850 event pairs, 4996 based on Foata normal form. 768/20107 useless extension candidates. Maximal degree in co-relation 51491. Up to 9840 conditions per place. [2024-10-13 16:47:55,168 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 215 selfloop transitions, 6 changer transitions 0/276 dead transitions. [2024-10-13 16:47:55,168 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 276 transitions, 1748 flow [2024-10-13 16:47:55,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:47:55,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:47:55,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 479 transitions. [2024-10-13 16:47:55,169 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7085798816568047 [2024-10-13 16:47:55,169 INFO L175 Difference]: Start difference. First operand has 192 places, 176 transitions, 813 flow. Second operand 4 states and 479 transitions. [2024-10-13 16:47:55,169 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 276 transitions, 1748 flow [2024-10-13 16:47:55,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 276 transitions, 1736 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-13 16:47:55,362 INFO L231 Difference]: Finished difference. Result has 190 places, 175 transitions, 809 flow [2024-10-13 16:47:55,362 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=797, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=175, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=809, PETRI_PLACES=190, PETRI_TRANSITIONS=175} [2024-10-13 16:47:55,363 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 43 predicate places. [2024-10-13 16:47:55,363 INFO L471 AbstractCegarLoop]: Abstraction has has 190 places, 175 transitions, 809 flow [2024-10-13 16:47:55,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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) [2024-10-13 16:47:55,363 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:47:55,363 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:47:55,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2024-10-13 16:47:55,363 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:47:55,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:47:55,364 INFO L85 PathProgramCache]: Analyzing trace with hash 1217806942, now seen corresponding path program 1 times [2024-10-13 16:47:55,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:47:55,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878535048] [2024-10-13 16:47:55,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:55,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:47:55,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:55,454 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:47:55,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:47:55,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878535048] [2024-10-13 16:47:55,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [878535048] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:47:55,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719116545] [2024-10-13 16:47:55,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:55,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:47:55,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:47:55,456 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:47:55,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-13 16:47:55,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:55,611 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 16:47:55,614 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:47:55,720 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-13 16:47:55,721 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:47:55,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719116545] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:47:55,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:47:55,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2024-10-13 16:47:55,721 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566711092] [2024-10-13 16:47:55,721 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:47:55,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 16:47:55,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:47:55,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 16:47:55,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-13 16:47:55,781 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-10-13 16:47:55,782 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 190 places, 175 transitions, 809 flow. Second operand has 5 states, 5 states have (on average 79.8) internal successors, (399), 5 states have internal predecessors, (399), 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) [2024-10-13 16:47:55,782 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:47:55,782 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-10-13 16:47:55,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:47:57,633 INFO L124 PetriNetUnfolderBase]: 10023/20594 cut-off events. [2024-10-13 16:47:57,634 INFO L125 PetriNetUnfolderBase]: For 35819/36225 co-relation queries the response was YES. [2024-10-13 16:47:57,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 57011 conditions, 20594 events. 10023/20594 cut-off events. For 35819/36225 co-relation queries the response was YES. Maximal size of possible extension queue 593. Compared 182208 event pairs, 6995 based on Foata normal form. 576/20970 useless extension candidates. Maximal degree in co-relation 54772. Up to 13892 conditions per place. [2024-10-13 16:47:57,826 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 260 selfloop transitions, 7 changer transitions 0/318 dead transitions. [2024-10-13 16:47:57,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 318 transitions, 2061 flow [2024-10-13 16:47:57,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 16:47:57,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 16:47:57,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 637 transitions. [2024-10-13 16:47:57,828 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6282051282051282 [2024-10-13 16:47:57,828 INFO L175 Difference]: Start difference. First operand has 190 places, 175 transitions, 809 flow. Second operand 6 states and 637 transitions. [2024-10-13 16:47:57,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 318 transitions, 2061 flow [2024-10-13 16:47:58,083 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 318 transitions, 2019 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-10-13 16:47:58,085 INFO L231 Difference]: Finished difference. Result has 187 places, 173 transitions, 767 flow [2024-10-13 16:47:58,086 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=753, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=173, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=767, PETRI_PLACES=187, PETRI_TRANSITIONS=173} [2024-10-13 16:47:58,086 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 40 predicate places. [2024-10-13 16:47:58,086 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 173 transitions, 767 flow [2024-10-13 16:47:58,086 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 79.8) internal successors, (399), 5 states have internal predecessors, (399), 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) [2024-10-13 16:47:58,086 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:47:58,086 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:47:58,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-13 16:47:58,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-10-13 16:47:58,288 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:47:58,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:47:58,288 INFO L85 PathProgramCache]: Analyzing trace with hash -2077224546, now seen corresponding path program 1 times [2024-10-13 16:47:58,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:47:58,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649695269] [2024-10-13 16:47:58,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:58,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:47:58,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:58,379 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:47:58,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:47:58,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649695269] [2024-10-13 16:47:58,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649695269] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:47:58,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478425825] [2024-10-13 16:47:58,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:47:58,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:47:58,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:47:58,382 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:47:58,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-13 16:47:58,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:47:58,550 INFO L255 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:47:58,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:47:58,606 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-13 16:47:58,606 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:47:58,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478425825] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:47:58,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:47:58,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2024-10-13 16:47:58,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990325400] [2024-10-13 16:47:58,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:47:58,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:47:58,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:47:58,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:47:58,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-13 16:47:58,633 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-10-13 16:47:58,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 187 places, 173 transitions, 767 flow. Second operand has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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) [2024-10-13 16:47:58,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:47:58,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-10-13 16:47:58,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:48:00,220 INFO L124 PetriNetUnfolderBase]: 9861/19948 cut-off events. [2024-10-13 16:48:00,220 INFO L125 PetriNetUnfolderBase]: For 29585/30159 co-relation queries the response was YES. [2024-10-13 16:48:00,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 54015 conditions, 19948 events. 9861/19948 cut-off events. For 29585/30159 co-relation queries the response was YES. Maximal size of possible extension queue 577. Compared 174191 event pairs, 6075 based on Foata normal form. 554/20324 useless extension candidates. Maximal degree in co-relation 51930. Up to 12220 conditions per place. [2024-10-13 16:48:00,453 INFO L140 encePairwiseOnDemand]: 163/169 looper letters, 161 selfloop transitions, 7 changer transitions 0/219 dead transitions. [2024-10-13 16:48:00,454 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 219 transitions, 1332 flow [2024-10-13 16:48:00,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:48:00,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:48:00,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 438 transitions. [2024-10-13 16:48:00,455 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6479289940828402 [2024-10-13 16:48:00,455 INFO L175 Difference]: Start difference. First operand has 187 places, 173 transitions, 767 flow. Second operand 4 states and 438 transitions. [2024-10-13 16:48:00,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 219 transitions, 1332 flow [2024-10-13 16:48:00,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 219 transitions, 1317 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 16:48:00,703 INFO L231 Difference]: Finished difference. Result has 186 places, 172 transitions, 770 flow [2024-10-13 16:48:00,703 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=756, PETRI_DIFFERENCE_MINUEND_PLACES=183, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=172, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=770, PETRI_PLACES=186, PETRI_TRANSITIONS=172} [2024-10-13 16:48:00,703 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 39 predicate places. [2024-10-13 16:48:00,703 INFO L471 AbstractCegarLoop]: Abstraction has has 186 places, 172 transitions, 770 flow [2024-10-13 16:48:00,704 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 86.75) internal successors, (347), 4 states have internal predecessors, (347), 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) [2024-10-13 16:48:00,704 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:48:00,704 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:48:00,717 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-10-13 16:48:00,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:48:00,908 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:48:00,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:48:00,909 INFO L85 PathProgramCache]: Analyzing trace with hash -902688744, now seen corresponding path program 1 times [2024-10-13 16:48:00,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:48:00,909 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774071465] [2024-10-13 16:48:00,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:00,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:48:00,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:00,996 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:48:00,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:48:00,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774071465] [2024-10-13 16:48:00,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1774071465] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:48:00,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489343328] [2024-10-13 16:48:00,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:00,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:48:00,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:48:00,999 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:48:01,008 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-13 16:48:01,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:01,165 INFO L255 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 16:48:01,166 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:48:01,248 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-13 16:48:01,248 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:48:01,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489343328] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:48:01,249 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:48:01,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10 [2024-10-13 16:48:01,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717823074] [2024-10-13 16:48:01,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:48:01,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 16:48:01,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:48:01,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 16:48:01,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-13 16:48:01,305 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-10-13 16:48:01,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 172 transitions, 770 flow. Second operand has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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) [2024-10-13 16:48:01,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:48:01,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-10-13 16:48:01,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:48:03,118 INFO L124 PetriNetUnfolderBase]: 10367/20690 cut-off events. [2024-10-13 16:48:03,119 INFO L125 PetriNetUnfolderBase]: For 32448/32851 co-relation queries the response was YES. [2024-10-13 16:48:03,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 56525 conditions, 20690 events. 10367/20690 cut-off events. For 32448/32851 co-relation queries the response was YES. Maximal size of possible extension queue 579. Compared 178483 event pairs, 6695 based on Foata normal form. 553/21067 useless extension candidates. Maximal degree in co-relation 54872. Up to 13348 conditions per place. [2024-10-13 16:48:03,257 INFO L140 encePairwiseOnDemand]: 161/169 looper letters, 216 selfloop transitions, 10 changer transitions 88/363 dead transitions. [2024-10-13 16:48:03,258 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 191 places, 363 transitions, 2414 flow [2024-10-13 16:48:03,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 16:48:03,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 16:48:03,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 746 transitions. [2024-10-13 16:48:03,259 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6306001690617076 [2024-10-13 16:48:03,259 INFO L175 Difference]: Start difference. First operand has 186 places, 172 transitions, 770 flow. Second operand 7 states and 746 transitions. [2024-10-13 16:48:03,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 191 places, 363 transitions, 2414 flow [2024-10-13 16:48:03,494 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 363 transitions, 2380 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-13 16:48:03,496 INFO L231 Difference]: Finished difference. Result has 188 places, 171 transitions, 776 flow [2024-10-13 16:48:03,497 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=756, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=171, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=161, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=776, PETRI_PLACES=188, PETRI_TRANSITIONS=171} [2024-10-13 16:48:03,497 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 41 predicate places. [2024-10-13 16:48:03,497 INFO L471 AbstractCegarLoop]: Abstraction has has 188 places, 171 transitions, 776 flow [2024-10-13 16:48:03,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.0) internal successors, (474), 6 states have internal predecessors, (474), 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) [2024-10-13 16:48:03,498 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:48:03,498 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:48:03,511 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-10-13 16:48:03,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2024-10-13 16:48:03,702 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:48:03,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:48:03,702 INFO L85 PathProgramCache]: Analyzing trace with hash 30518515, now seen corresponding path program 1 times [2024-10-13 16:48:03,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:48:03,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029717979] [2024-10-13 16:48:03,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:03,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:48:03,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:03,807 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:48:03,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:48:03,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029717979] [2024-10-13 16:48:03,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029717979] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:48:03,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1835306652] [2024-10-13 16:48:03,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:03,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:48:03,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:48:03,814 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:48:03,818 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-13 16:48:04,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:04,122 INFO L255 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-13 16:48:04,123 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:48:04,209 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-13 16:48:04,209 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:48:04,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1835306652] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:48:04,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:48:04,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 8 [2024-10-13 16:48:04,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731980959] [2024-10-13 16:48:04,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:48:04,210 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:48:04,210 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:48:04,210 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:48:04,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-10-13 16:48:04,256 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 169 [2024-10-13 16:48:04,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 171 transitions, 776 flow. Second operand has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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) [2024-10-13 16:48:04,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:48:04,257 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 169 [2024-10-13 16:48:04,257 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:48:05,920 INFO L124 PetriNetUnfolderBase]: 9689/19576 cut-off events. [2024-10-13 16:48:05,920 INFO L125 PetriNetUnfolderBase]: For 33483/34025 co-relation queries the response was YES. [2024-10-13 16:48:06,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53702 conditions, 19576 events. 9689/19576 cut-off events. For 33483/34025 co-relation queries the response was YES. Maximal size of possible extension queue 562. Compared 170378 event pairs, 6379 based on Foata normal form. 632/20024 useless extension candidates. Maximal degree in co-relation 50691. Up to 12772 conditions per place. [2024-10-13 16:48:06,069 INFO L140 encePairwiseOnDemand]: 165/169 looper letters, 162 selfloop transitions, 5 changer transitions 0/217 dead transitions. [2024-10-13 16:48:06,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 190 places, 217 transitions, 1343 flow [2024-10-13 16:48:06,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:48:06,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:48:06,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 427 transitions. [2024-10-13 16:48:06,070 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6316568047337278 [2024-10-13 16:48:06,070 INFO L175 Difference]: Start difference. First operand has 188 places, 171 transitions, 776 flow. Second operand 4 states and 427 transitions. [2024-10-13 16:48:06,070 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 190 places, 217 transitions, 1343 flow [2024-10-13 16:48:06,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 217 transitions, 1300 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-10-13 16:48:06,289 INFO L231 Difference]: Finished difference. Result has 185 places, 170 transitions, 757 flow [2024-10-13 16:48:06,290 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=747, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=757, PETRI_PLACES=185, PETRI_TRANSITIONS=170} [2024-10-13 16:48:06,290 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 38 predicate places. [2024-10-13 16:48:06,290 INFO L471 AbstractCegarLoop]: Abstraction has has 185 places, 170 transitions, 757 flow [2024-10-13 16:48:06,290 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.0) internal successors, (340), 4 states have internal predecessors, (340), 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) [2024-10-13 16:48:06,290 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:48:06,291 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:48:06,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-10-13 16:48:06,494 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-10-13 16:48:06,494 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:48:06,495 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:48:06,495 INFO L85 PathProgramCache]: Analyzing trace with hash 1214935186, now seen corresponding path program 1 times [2024-10-13 16:48:06,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:48:06,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533547355] [2024-10-13 16:48:06,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:06,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:48:06,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:06,565 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-13 16:48:06,566 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:48:06,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533547355] [2024-10-13 16:48:06,566 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533547355] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:48:06,566 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 16:48:06,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-13 16:48:06,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544573786] [2024-10-13 16:48:06,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:48:06,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-13 16:48:06,567 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:48:06,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-13 16:48:06,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-13 16:48:06,576 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 169 [2024-10-13 16:48:06,577 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 185 places, 170 transitions, 757 flow. Second operand has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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) [2024-10-13 16:48:06,577 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:48:06,577 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 169 [2024-10-13 16:48:06,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:48:08,127 INFO L124 PetriNetUnfolderBase]: 9689/19204 cut-off events. [2024-10-13 16:48:08,127 INFO L125 PetriNetUnfolderBase]: For 32706/33352 co-relation queries the response was YES. [2024-10-13 16:48:08,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51949 conditions, 19204 events. 9689/19204 cut-off events. For 32706/33352 co-relation queries the response was YES. Maximal size of possible extension queue 548. Compared 164479 event pairs, 5011 based on Foata normal form. 716/19773 useless extension candidates. Maximal degree in co-relation 48895. Up to 9873 conditions per place. [2024-10-13 16:48:08,226 INFO L140 encePairwiseOnDemand]: 164/169 looper letters, 212 selfloop transitions, 6 changer transitions 0/267 dead transitions. [2024-10-13 16:48:08,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 267 transitions, 1635 flow [2024-10-13 16:48:08,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-13 16:48:08,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-13 16:48:08,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 476 transitions. [2024-10-13 16:48:08,227 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7041420118343196 [2024-10-13 16:48:08,227 INFO L175 Difference]: Start difference. First operand has 185 places, 170 transitions, 757 flow. Second operand 4 states and 476 transitions. [2024-10-13 16:48:08,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 267 transitions, 1635 flow [2024-10-13 16:48:08,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 267 transitions, 1623 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-13 16:48:08,398 INFO L231 Difference]: Finished difference. Result has 183 places, 169 transitions, 753 flow [2024-10-13 16:48:08,398 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=741, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=169, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=753, PETRI_PLACES=183, PETRI_TRANSITIONS=169} [2024-10-13 16:48:08,399 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 36 predicate places. [2024-10-13 16:48:08,399 INFO L471 AbstractCegarLoop]: Abstraction has has 183 places, 169 transitions, 753 flow [2024-10-13 16:48:08,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.25) internal successors, (349), 4 states have internal predecessors, (349), 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) [2024-10-13 16:48:08,399 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:48:08,399 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:48:08,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-10-13 16:48:08,399 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:48:08,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:48:08,400 INFO L85 PathProgramCache]: Analyzing trace with hash 946074726, now seen corresponding path program 1 times [2024-10-13 16:48:08,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:48:08,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142896043] [2024-10-13 16:48:08,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:08,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:48:08,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:08,514 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:48:08,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:48:08,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142896043] [2024-10-13 16:48:08,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142896043] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:48:08,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428723108] [2024-10-13 16:48:08,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:08,514 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:48:08,514 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:48:08,515 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:48:08,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-13 16:48:08,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:08,704 INFO L255 TraceCheckSpWp]: Trace formula consists of 326 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 16:48:08,705 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:48:08,838 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-13 16:48:08,839 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:48:08,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428723108] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:48:08,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:48:08,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 9 [2024-10-13 16:48:08,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664310654] [2024-10-13 16:48:08,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:48:08,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-13 16:48:08,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:48:08,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-13 16:48:08,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-13 16:48:08,916 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-10-13 16:48:08,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 169 transitions, 753 flow. Second operand has 5 states, 5 states have (on average 80.2) internal successors, (401), 5 states have internal predecessors, (401), 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) [2024-10-13 16:48:08,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:48:08,916 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-10-13 16:48:08,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:48:10,633 INFO L124 PetriNetUnfolderBase]: 10033/19810 cut-off events. [2024-10-13 16:48:10,634 INFO L125 PetriNetUnfolderBase]: For 32213/32683 co-relation queries the response was YES. [2024-10-13 16:48:10,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 53561 conditions, 19810 events. 10033/19810 cut-off events. For 32213/32683 co-relation queries the response was YES. Maximal size of possible extension queue 550. Compared 168609 event pairs, 6987 based on Foata normal form. 666/20309 useless extension candidates. Maximal degree in co-relation 51304. Up to 13876 conditions per place. [2024-10-13 16:48:10,781 INFO L140 encePairwiseOnDemand]: 162/169 looper letters, 257 selfloop transitions, 7 changer transitions 0/309 dead transitions. [2024-10-13 16:48:10,781 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 309 transitions, 1927 flow [2024-10-13 16:48:10,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-13 16:48:10,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-13 16:48:10,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 634 transitions. [2024-10-13 16:48:10,782 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6252465483234714 [2024-10-13 16:48:10,782 INFO L175 Difference]: Start difference. First operand has 183 places, 169 transitions, 753 flow. Second operand 6 states and 634 transitions. [2024-10-13 16:48:10,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 309 transitions, 1927 flow [2024-10-13 16:48:10,975 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 309 transitions, 1885 flow, removed 0 selfloop flow, removed 7 redundant places. [2024-10-13 16:48:10,977 INFO L231 Difference]: Finished difference. Result has 180 places, 167 transitions, 711 flow [2024-10-13 16:48:10,978 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=697, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=167, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=711, PETRI_PLACES=180, PETRI_TRANSITIONS=167} [2024-10-13 16:48:10,978 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 33 predicate places. [2024-10-13 16:48:10,978 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 167 transitions, 711 flow [2024-10-13 16:48:10,979 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 80.2) internal successors, (401), 5 states have internal predecessors, (401), 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) [2024-10-13 16:48:10,979 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-13 16:48:10,979 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:48:10,994 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-10-13 16:48:11,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-10-13 16:48:11,180 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 77 more)] === [2024-10-13 16:48:11,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 16:48:11,180 INFO L85 PathProgramCache]: Analyzing trace with hash -736452776, now seen corresponding path program 1 times [2024-10-13 16:48:11,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 16:48:11,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099810114] [2024-10-13 16:48:11,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:11,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 16:48:11,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:11,269 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-10-13 16:48:11,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 16:48:11,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099810114] [2024-10-13 16:48:11,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099810114] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-13 16:48:11,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506783051] [2024-10-13 16:48:11,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 16:48:11,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:48:11,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 16:48:11,273 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-13 16:48:11,278 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-13 16:48:11,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 16:48:11,456 INFO L255 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-13 16:48:11,458 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-13 16:48:11,538 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-13 16:48:11,538 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-13 16:48:11,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506783051] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 16:48:11,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-13 16:48:11,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 10 [2024-10-13 16:48:11,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707411305] [2024-10-13 16:48:11,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 16:48:11,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-13 16:48:11,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 16:48:11,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-13 16:48:11,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-13 16:48:11,609 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 169 [2024-10-13 16:48:11,610 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 167 transitions, 711 flow. Second operand has 6 states, 6 states have (on average 79.33333333333333) internal successors, (476), 6 states have internal predecessors, (476), 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) [2024-10-13 16:48:11,610 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-13 16:48:11,610 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 169 [2024-10-13 16:48:11,610 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-13 16:48:13,385 INFO L124 PetriNetUnfolderBase]: 10377/19948 cut-off events. [2024-10-13 16:48:13,385 INFO L125 PetriNetUnfolderBase]: For 26425/26901 co-relation queries the response was YES. [2024-10-13 16:48:13,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52731 conditions, 19948 events. 10377/19948 cut-off events. For 26425/26901 co-relation queries the response was YES. Maximal size of possible extension queue 549. Compared 166043 event pairs, 6683 based on Foata normal form. 666/20446 useless extension candidates. Maximal degree in co-relation 50996. Up to 13324 conditions per place. [2024-10-13 16:48:13,538 INFO L140 encePairwiseOnDemand]: 161/169 looper letters, 0 selfloop transitions, 0 changer transitions 354/354 dead transitions. [2024-10-13 16:48:13,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 354 transitions, 2203 flow [2024-10-13 16:48:13,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-13 16:48:13,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-13 16:48:13,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 742 transitions. [2024-10-13 16:48:13,539 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6272189349112426 [2024-10-13 16:48:13,540 INFO L175 Difference]: Start difference. First operand has 180 places, 167 transitions, 711 flow. Second operand 7 states and 742 transitions. [2024-10-13 16:48:13,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 354 transitions, 2203 flow [2024-10-13 16:48:13,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 354 transitions, 2192 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-13 16:48:13,675 INFO L231 Difference]: Finished difference. Result has 181 places, 0 transitions, 0 flow [2024-10-13 16:48:13,676 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=169, PETRI_DIFFERENCE_MINUEND_FLOW=696, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=181, PETRI_TRANSITIONS=0} [2024-10-13 16:48:13,676 INFO L277 CegarLoopForPetriNet]: 147 programPoint places, 34 predicate places. [2024-10-13 16:48:13,676 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 0 transitions, 0 flow [2024-10-13 16:48:13,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.33333333333333) internal successors, (476), 6 states have internal predecessors, (476), 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) [2024-10-13 16:48:13,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (79 of 80 remaining) [2024-10-13 16:48:13,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (78 of 80 remaining) [2024-10-13 16:48:13,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (77 of 80 remaining) [2024-10-13 16:48:13,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (76 of 80 remaining) [2024-10-13 16:48:13,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (75 of 80 remaining) [2024-10-13 16:48:13,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (74 of 80 remaining) [2024-10-13 16:48:13,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (73 of 80 remaining) [2024-10-13 16:48:13,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (72 of 80 remaining) [2024-10-13 16:48:13,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (71 of 80 remaining) [2024-10-13 16:48:13,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (70 of 80 remaining) [2024-10-13 16:48:13,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (69 of 80 remaining) [2024-10-13 16:48:13,680 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (68 of 80 remaining) [2024-10-13 16:48:13,681 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (67 of 80 remaining) [2024-10-13 16:48:13,681 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (66 of 80 remaining) [2024-10-13 16:48:13,681 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (65 of 80 remaining) [2024-10-13 16:48:13,681 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (64 of 80 remaining) [2024-10-13 16:48:13,681 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (63 of 80 remaining) [2024-10-13 16:48:13,681 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (62 of 80 remaining) [2024-10-13 16:48:13,681 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (61 of 80 remaining) [2024-10-13 16:48:13,681 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (60 of 80 remaining) [2024-10-13 16:48:13,681 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (59 of 80 remaining) [2024-10-13 16:48:13,681 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (58 of 80 remaining) [2024-10-13 16:48:13,685 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (57 of 80 remaining) [2024-10-13 16:48:13,685 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (56 of 80 remaining) [2024-10-13 16:48:13,685 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (55 of 80 remaining) [2024-10-13 16:48:13,685 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (54 of 80 remaining) [2024-10-13 16:48:13,685 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (53 of 80 remaining) [2024-10-13 16:48:13,686 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 80 remaining) [2024-10-13 16:48:13,686 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 80 remaining) [2024-10-13 16:48:13,686 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 80 remaining) [2024-10-13 16:48:13,686 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 80 remaining) [2024-10-13 16:48:13,686 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 80 remaining) [2024-10-13 16:48:13,686 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 80 remaining) [2024-10-13 16:48:13,686 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 80 remaining) [2024-10-13 16:48:13,686 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 80 remaining) [2024-10-13 16:48:13,686 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 80 remaining) [2024-10-13 16:48:13,686 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 80 remaining) [2024-10-13 16:48:13,686 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 80 remaining) [2024-10-13 16:48:13,686 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 80 remaining) [2024-10-13 16:48:13,686 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 80 remaining) [2024-10-13 16:48:13,686 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 80 remaining) [2024-10-13 16:48:13,686 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 80 remaining) [2024-10-13 16:48:13,686 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 80 remaining) [2024-10-13 16:48:13,686 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (36 of 80 remaining) [2024-10-13 16:48:13,686 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 80 remaining) [2024-10-13 16:48:13,686 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 80 remaining) [2024-10-13 16:48:13,686 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 80 remaining) [2024-10-13 16:48:13,686 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 80 remaining) [2024-10-13 16:48:13,686 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 80 remaining) [2024-10-13 16:48:13,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 80 remaining) [2024-10-13 16:48:13,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 80 remaining) [2024-10-13 16:48:13,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 80 remaining) [2024-10-13 16:48:13,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 80 remaining) [2024-10-13 16:48:13,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 80 remaining) [2024-10-13 16:48:13,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 80 remaining) [2024-10-13 16:48:13,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 80 remaining) [2024-10-13 16:48:13,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 80 remaining) [2024-10-13 16:48:13,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 80 remaining) [2024-10-13 16:48:13,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 80 remaining) [2024-10-13 16:48:13,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 80 remaining) [2024-10-13 16:48:13,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 80 remaining) [2024-10-13 16:48:13,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 80 remaining) [2024-10-13 16:48:13,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err12ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 80 remaining) [2024-10-13 16:48:13,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 80 remaining) [2024-10-13 16:48:13,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err13ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 80 remaining) [2024-10-13 16:48:13,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 80 remaining) [2024-10-13 16:48:13,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 80 remaining) [2024-10-13 16:48:13,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err14ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 80 remaining) [2024-10-13 16:48:13,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 80 remaining) [2024-10-13 16:48:13,687 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 80 remaining) [2024-10-13 16:48:13,688 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err16ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 80 remaining) [2024-10-13 16:48:13,688 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err15ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 80 remaining) [2024-10-13 16:48:13,688 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 80 remaining) [2024-10-13 16:48:13,689 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 80 remaining) [2024-10-13 16:48:13,689 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 80 remaining) [2024-10-13 16:48:13,689 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err17ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 80 remaining) [2024-10-13 16:48:13,689 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 80 remaining) [2024-10-13 16:48:13,689 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 80 remaining) [2024-10-13 16:48:13,690 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 80 remaining) [2024-10-13 16:48:13,690 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err11ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 80 remaining) [2024-10-13 16:48:13,712 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-10-13 16:48:13,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-13 16:48:13,891 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 16:48:13,901 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-13 16:48:13,903 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-13 16:48:13,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 04:48:13 BasicIcfg [2024-10-13 16:48:13,908 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-13 16:48:13,909 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-13 16:48:13,909 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-13 16:48:13,909 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-13 16:48:13,909 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 04:46:44" (3/4) ... [2024-10-13 16:48:13,911 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-13 16:48:13,913 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-10-13 16:48:13,913 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-10-13 16:48:13,918 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 160 nodes and edges [2024-10-13 16:48:13,919 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 26 nodes and edges [2024-10-13 16:48:13,919 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-13 16:48:13,919 INFO L904 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-10-13 16:48:14,008 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-13 16:48:14,009 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-13 16:48:14,009 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-13 16:48:14,009 INFO L158 Benchmark]: Toolchain (without parser) took 91274.82ms. Allocated memory was 159.4MB in the beginning and 4.8GB in the end (delta: 4.6GB). Free memory was 84.1MB in the beginning and 3.7GB in the end (delta: -3.6GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2024-10-13 16:48:14,010 INFO L158 Benchmark]: CDTParser took 0.82ms. Allocated memory is still 159.4MB. Free memory was 109.0MB in the beginning and 108.8MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-13 16:48:14,010 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.17ms. Allocated memory is still 159.4MB. Free memory was 84.0MB in the beginning and 68.7MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-13 16:48:14,010 INFO L158 Benchmark]: Boogie Procedure Inliner took 85.45ms. Allocated memory is still 159.4MB. Free memory was 68.6MB in the beginning and 126.7MB in the end (delta: -58.1MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. [2024-10-13 16:48:14,010 INFO L158 Benchmark]: Boogie Preprocessor took 75.08ms. Allocated memory was 159.4MB in the beginning and 216.0MB in the end (delta: 56.6MB). Free memory was 126.6MB in the beginning and 184.5MB in the end (delta: -57.9MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. [2024-10-13 16:48:14,010 INFO L158 Benchmark]: RCFGBuilder took 1209.17ms. Allocated memory is still 216.0MB. Free memory was 184.5MB in the beginning and 147.2MB in the end (delta: 37.3MB). Peak memory consumption was 128.6MB. Max. memory is 16.1GB. [2024-10-13 16:48:14,011 INFO L158 Benchmark]: TraceAbstraction took 89528.48ms. Allocated memory was 216.0MB in the beginning and 4.8GB in the end (delta: 4.5GB). Free memory was 146.2MB in the beginning and 3.7GB in the end (delta: -3.5GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2024-10-13 16:48:14,011 INFO L158 Benchmark]: Witness Printer took 100.42ms. Allocated memory is still 4.8GB. Free memory was 3.7GB in the beginning and 3.7GB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-10-13 16:48:14,012 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.82ms. Allocated memory is still 159.4MB. Free memory was 109.0MB in the beginning and 108.8MB in the end (delta: 159.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 270.17ms. Allocated memory is still 159.4MB. Free memory was 84.0MB in the beginning and 68.7MB in the end (delta: 15.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 85.45ms. Allocated memory is still 159.4MB. Free memory was 68.6MB in the beginning and 126.7MB in the end (delta: -58.1MB). Peak memory consumption was 9.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 75.08ms. Allocated memory was 159.4MB in the beginning and 216.0MB in the end (delta: 56.6MB). Free memory was 126.6MB in the beginning and 184.5MB in the end (delta: -57.9MB). Peak memory consumption was 4.7MB. Max. memory is 16.1GB. * RCFGBuilder took 1209.17ms. Allocated memory is still 216.0MB. Free memory was 184.5MB in the beginning and 147.2MB in the end (delta: 37.3MB). Peak memory consumption was 128.6MB. Max. memory is 16.1GB. * TraceAbstraction took 89528.48ms. Allocated memory was 216.0MB in the beginning and 4.8GB in the end (delta: 4.5GB). Free memory was 146.2MB in the beginning and 3.7GB in the end (delta: -3.5GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. * Witness Printer took 100.42ms. Allocated memory is still 4.8GB. Free memory was 3.7GB in the beginning and 3.7GB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 60]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 62]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 145]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 87]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 146]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 89]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 147]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 138]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 138]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 138]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 138]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 127]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 127]: 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, 268 locations, 80 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: 89.4s, OverallIterations: 41, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 77.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5813 SdHoareTripleChecker+Valid, 10.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5011 mSDsluCounter, 726 SdHoareTripleChecker+Invalid, 8.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 457 mSDsCounter, 441 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 14917 IncrementalHoareTripleChecker+Invalid, 15358 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 441 mSolverCounterUnsat, 269 mSDtfsCounter, 14917 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1018 GetRequests, 760 SyntacticMatches, 0 SemanticMatches, 258 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=839occurred in iteration=27, InterpolantAutomatonStates: 212, 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: 0.4s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 4.6s InterpolantComputationTime, 2360 NumberOfCodeBlocks, 2330 NumberOfCodeBlocksAsserted, 59 NumberOfCheckSat, 2367 ConstructedInterpolants, 0 QuantifiedInterpolants, 5727 SizeOfPredicates, 38 NumberOfNonLiveVariables, 4578 ConjunctsInSsa, 87 ConjunctsInUnsatCore, 63 InterpolantComputations, 37 PerfectInterpolantSequences, 3179/3315 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 42 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-10-13 16:48:14,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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