./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_72-funloop_hard_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/goblint-regression/28-race_reach_72-funloop_hard_racing.i -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 566e2cbe460cf96671c9cef5a53ce51910e23c462e96f394be80b957976729c5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:19:29,398 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:19:29,473 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:19:29,484 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:19:29,484 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:19:29,511 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:19:29,514 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:19:29,514 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:19:29,515 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:19:29,515 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:19:29,515 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:19:29,516 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:19:29,516 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:19:29,516 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:19:29,517 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:19:29,517 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:19:29,517 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:19:29,517 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:19:29,518 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:19:29,518 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:19:29,522 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:19:29,523 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:19:29,523 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:19:29,523 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:19:29,524 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:19:29,524 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:19:29,524 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:19:29,524 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:19:29,524 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:19:29,525 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:19:29,525 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:19:29,529 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:19:29,529 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:19:29,530 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:19:29,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:19:29,530 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:19:29,530 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:19:29,531 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:19:29,531 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:19:29,531 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:19:29,531 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:19:29,532 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:19:29,532 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:19:29,532 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:19:29,532 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 566e2cbe460cf96671c9cef5a53ce51910e23c462e96f394be80b957976729c5 [2024-11-10 22:19:29,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:19:29,770 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:19:29,772 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:19:29,773 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:19:29,773 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:19:29,774 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_72-funloop_hard_racing.i [2024-11-10 22:19:31,211 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:19:31,423 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:19:31,423 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_72-funloop_hard_racing.i [2024-11-10 22:19:31,435 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b8c4b1cf/c04a3fd194b54ba0bf57e8854b38cd1a/FLAG5b37f38c0 [2024-11-10 22:19:31,772 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b8c4b1cf/c04a3fd194b54ba0bf57e8854b38cd1a [2024-11-10 22:19:31,774 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:19:31,775 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:19:31,781 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:19:31,781 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:19:31,786 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:19:31,786 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:19:31" (1/1) ... [2024-11-10 22:19:31,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28148eb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:31, skipping insertion in model container [2024-11-10 22:19:31,787 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:19:31" (1/1) ... [2024-11-10 22:19:31,833 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:19:32,239 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:19:32,273 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:19:32,321 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:19:32,368 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:19:32,368 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:32 WrapperNode [2024-11-10 22:19:32,368 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:19:32,369 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:19:32,369 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:19:32,370 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:19:32,375 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:32" (1/1) ... [2024-11-10 22:19:32,388 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:32" (1/1) ... [2024-11-10 22:19:32,426 INFO L138 Inliner]: procedures = 272, calls = 110, calls flagged for inlining = 7, calls inlined = 10, statements flattened = 352 [2024-11-10 22:19:32,426 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:19:32,427 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:19:32,427 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:19:32,427 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:19:32,440 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:32" (1/1) ... [2024-11-10 22:19:32,440 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:32" (1/1) ... [2024-11-10 22:19:32,448 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:32" (1/1) ... [2024-11-10 22:19:32,473 INFO L175 MemorySlicer]: Split 84 memory accesses to 4 slices as follows [2, 5, 75, 2]. 89 percent of accesses are in the largest equivalence class. The 67 initializations are split as follows [2, 5, 60, 0]. The 7 writes are split as follows [0, 0, 6, 1]. [2024-11-10 22:19:32,474 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:32" (1/1) ... [2024-11-10 22:19:32,474 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:32" (1/1) ... [2024-11-10 22:19:32,489 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:32" (1/1) ... [2024-11-10 22:19:32,489 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:32" (1/1) ... [2024-11-10 22:19:32,491 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:32" (1/1) ... [2024-11-10 22:19:32,496 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:32" (1/1) ... [2024-11-10 22:19:32,503 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:19:32,503 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:19:32,503 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:19:32,503 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:19:32,504 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:32" (1/1) ... [2024-11-10 22:19:32,513 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:19:32,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:19:32,546 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) [2024-11-10 22:19:32,548 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 [2024-11-10 22:19:32,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 22:19:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 22:19:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 22:19:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 22:19:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 22:19:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 22:19:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 22:19:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 22:19:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 22:19:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 22:19:32,587 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 22:19:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 22:19:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:19:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-10 22:19:32,588 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-10 22:19:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:19:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 22:19:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 22:19:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 22:19:32,588 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:19:32,588 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:19:32,589 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 22:19:32,770 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:19:32,772 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:19:33,014 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L953: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2024-11-10 22:19:33,014 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L953-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2024-11-10 22:19:33,069 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:19:33,070 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:19:33,497 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:19:33,498 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:19:33,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:19:33 BoogieIcfgContainer [2024-11-10 22:19:33,499 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:19:33,501 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:19:33,501 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:19:33,504 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:19:33,504 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:19:31" (1/3) ... [2024-11-10 22:19:33,505 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60325064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:19:33, skipping insertion in model container [2024-11-10 22:19:33,505 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:32" (2/3) ... [2024-11-10 22:19:33,507 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60325064 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:19:33, skipping insertion in model container [2024-11-10 22:19:33,507 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:19:33" (3/3) ... [2024-11-10 22:19:33,508 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_72-funloop_hard_racing.i [2024-11-10 22:19:33,521 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:19:33,521 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 22 error locations. [2024-11-10 22:19:33,521 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:19:33,560 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-10 22:19:33,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 150 places, 189 transitions, 385 flow [2024-11-10 22:19:33,662 INFO L124 PetriNetUnfolderBase]: 68/299 cut-off events. [2024-11-10 22:19:33,663 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 22:19:33,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 304 conditions, 299 events. 68/299 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1462 event pairs, 0 based on Foata normal form. 0/196 useless extension candidates. Maximal degree in co-relation 171. Up to 8 conditions per place. [2024-11-10 22:19:33,670 INFO L82 GeneralOperation]: Start removeDead. Operand has 150 places, 189 transitions, 385 flow [2024-11-10 22:19:33,675 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 150 places, 188 transitions, 383 flow [2024-11-10 22:19:33,686 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:19:33,692 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;@3f509332, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:19:33,693 INFO L334 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2024-11-10 22:19:33,697 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:19:33,697 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events. [2024-11-10 22:19:33,697 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:19:33,697 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:19:33,698 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 22:19:33,698 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-10 22:19:33,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:19:33,702 INFO L85 PathProgramCache]: Analyzing trace with hash 27103404, now seen corresponding path program 1 times [2024-11-10 22:19:33,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:19:33,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691493423] [2024-11-10 22:19:33,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:33,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:19:33,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:33,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:19:33,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:19:33,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691493423] [2024-11-10 22:19:33,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1691493423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:19:33,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:19:33,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:19:33,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975718470] [2024-11-10 22:19:33,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:19:33,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:19:34,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:19:34,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:19:34,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:19:34,027 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 189 [2024-11-10 22:19:34,029 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 188 transitions, 383 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) [2024-11-10 22:19:34,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:19:34,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 189 [2024-11-10 22:19:34,030 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:19:34,469 INFO L124 PetriNetUnfolderBase]: 949/3145 cut-off events. [2024-11-10 22:19:34,469 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 22:19:34,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4960 conditions, 3145 events. 949/3145 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 26764 event pairs, 800 based on Foata normal form. 885/3722 useless extension candidates. Maximal degree in co-relation 4796. Up to 1808 conditions per place. [2024-11-10 22:19:34,484 INFO L140 encePairwiseOnDemand]: 148/189 looper letters, 70 selfloop transitions, 3 changer transitions 0/155 dead transitions. [2024-11-10 22:19:34,484 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 155 transitions, 463 flow [2024-11-10 22:19:34,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:19:34,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:19:34,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 440 transitions. [2024-11-10 22:19:34,500 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.582010582010582 [2024-11-10 22:19:34,502 INFO L175 Difference]: Start difference. First operand has 150 places, 188 transitions, 383 flow. Second operand 4 states and 440 transitions. [2024-11-10 22:19:34,503 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 155 transitions, 463 flow [2024-11-10 22:19:34,505 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 155 transitions, 463 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:19:34,510 INFO L231 Difference]: Finished difference. Result has 155 places, 155 transitions, 337 flow [2024-11-10 22:19:34,512 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=313, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=337, PETRI_PLACES=155, PETRI_TRANSITIONS=155} [2024-11-10 22:19:34,517 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, 5 predicate places. [2024-11-10 22:19:34,517 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 155 transitions, 337 flow [2024-11-10 22:19:34,517 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) [2024-11-10 22:19:34,517 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:19:34,518 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-10 22:19:34,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:19:34,518 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-10 22:19:34,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:19:34,519 INFO L85 PathProgramCache]: Analyzing trace with hash -481111123, now seen corresponding path program 1 times [2024-11-10 22:19:34,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:19:34,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039517819] [2024-11-10 22:19:34,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:34,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:19:34,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:34,623 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:19:34,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:19:34,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039517819] [2024-11-10 22:19:34,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039517819] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:19:34,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68798266] [2024-11-10 22:19:34,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:34,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:19:34,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:19:34,627 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) [2024-11-10 22:19:34,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 22:19:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:34,700 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:19:34,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:19:34,738 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:19:34,739 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:19:34,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68798266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:19:34,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:19:34,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-10 22:19:34,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1360768993] [2024-11-10 22:19:34,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:19:34,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:19:34,741 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:19:34,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:19:34,741 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:19:34,748 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 189 [2024-11-10 22:19:34,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 155 transitions, 337 flow. Second operand has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:34,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:19:34,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 189 [2024-11-10 22:19:34,749 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:19:35,096 INFO L124 PetriNetUnfolderBase]: 949/3144 cut-off events. [2024-11-10 22:19:35,096 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-10 22:19:35,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4970 conditions, 3144 events. 949/3144 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 26721 event pairs, 800 based on Foata normal form. 1/2837 useless extension candidates. Maximal degree in co-relation 4951. Up to 1802 conditions per place. [2024-11-10 22:19:35,109 INFO L140 encePairwiseOnDemand]: 184/189 looper letters, 66 selfloop transitions, 6 changer transitions 0/154 dead transitions. [2024-11-10 22:19:35,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 154 transitions, 477 flow [2024-11-10 22:19:35,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:19:35,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:19:35,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 565 transitions. [2024-11-10 22:19:35,113 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4982363315696649 [2024-11-10 22:19:35,113 INFO L175 Difference]: Start difference. First operand has 155 places, 155 transitions, 337 flow. Second operand 6 states and 565 transitions. [2024-11-10 22:19:35,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 154 transitions, 477 flow [2024-11-10 22:19:35,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 154 transitions, 475 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:19:35,118 INFO L231 Difference]: Finished difference. Result has 158 places, 154 transitions, 343 flow [2024-11-10 22:19:35,118 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=331, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=343, PETRI_PLACES=158, PETRI_TRANSITIONS=154} [2024-11-10 22:19:35,119 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, 8 predicate places. [2024-11-10 22:19:35,119 INFO L471 AbstractCegarLoop]: Abstraction has has 158 places, 154 transitions, 343 flow [2024-11-10 22:19:35,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 82.83333333333333) internal successors, (497), 6 states have internal predecessors, (497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:35,122 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:19:35,122 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-10 22:19:35,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 22:19:35,322 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 [2024-11-10 22:19:35,323 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-10 22:19:35,324 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:19:35,324 INFO L85 PathProgramCache]: Analyzing trace with hash -2029542095, now seen corresponding path program 1 times [2024-11-10 22:19:35,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:19:35,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797599437] [2024-11-10 22:19:35,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:35,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:19:35,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:35,364 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:19:35,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:19:35,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797599437] [2024-11-10 22:19:35,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797599437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:19:35,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:19:35,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:19:35,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700908477] [2024-11-10 22:19:35,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:19:35,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:19:35,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:19:35,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:19:35,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:19:35,370 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 189 [2024-11-10 22:19:35,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 158 places, 154 transitions, 343 flow. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:35,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:19:35,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 189 [2024-11-10 22:19:35,371 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:19:35,738 INFO L124 PetriNetUnfolderBase]: 949/3143 cut-off events. [2024-11-10 22:19:35,738 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-10 22:19:35,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4971 conditions, 3143 events. 949/3143 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 26722 event pairs, 800 based on Foata normal form. 1/2838 useless extension candidates. Maximal degree in co-relation 4946. Up to 1805 conditions per place. [2024-11-10 22:19:35,753 INFO L140 encePairwiseOnDemand]: 186/189 looper letters, 66 selfloop transitions, 4 changer transitions 0/153 dead transitions. [2024-11-10 22:19:35,754 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 153 transitions, 479 flow [2024-11-10 22:19:35,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:19:35,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:19:35,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 318 transitions. [2024-11-10 22:19:35,755 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5608465608465608 [2024-11-10 22:19:35,755 INFO L175 Difference]: Start difference. First operand has 158 places, 154 transitions, 343 flow. Second operand 3 states and 318 transitions. [2024-11-10 22:19:35,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 153 transitions, 479 flow [2024-11-10 22:19:35,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 153 transitions, 469 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-10 22:19:35,761 INFO L231 Difference]: Finished difference. Result has 155 places, 153 transitions, 337 flow [2024-11-10 22:19:35,761 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=149, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=337, PETRI_PLACES=155, PETRI_TRANSITIONS=153} [2024-11-10 22:19:35,762 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, 5 predicate places. [2024-11-10 22:19:35,763 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 153 transitions, 337 flow [2024-11-10 22:19:35,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:35,763 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:19:35,763 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:19:35,763 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 22:19:35,764 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-10 22:19:35,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:19:35,764 INFO L85 PathProgramCache]: Analyzing trace with hash -623719583, now seen corresponding path program 1 times [2024-11-10 22:19:35,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:19:35,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058463481] [2024-11-10 22:19:35,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:35,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:19:35,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:35,860 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:19:35,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:19:35,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058463481] [2024-11-10 22:19:35,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058463481] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:19:35,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [771940092] [2024-11-10 22:19:35,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:35,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:19:35,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:19:35,863 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) [2024-11-10 22:19:35,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 22:19:35,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:35,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:19:35,946 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:19:35,963 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:19:35,963 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:19:35,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:19:35,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [771940092] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:19:35,987 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:19:35,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-10 22:19:35,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405341024] [2024-11-10 22:19:35,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:19:35,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 22:19:35,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:19:35,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 22:19:35,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 22:19:35,998 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 189 [2024-11-10 22:19:35,999 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 153 transitions, 337 flow. Second operand has 10 states, 10 states have (on average 83.4) internal successors, (834), 10 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:36,000 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:19:36,000 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 189 [2024-11-10 22:19:36,000 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:19:36,354 INFO L124 PetriNetUnfolderBase]: 949/3149 cut-off events. [2024-11-10 22:19:36,354 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-11-10 22:19:36,358 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4987 conditions, 3149 events. 949/3149 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 26742 event pairs, 800 based on Foata normal form. 2/2845 useless extension candidates. Maximal degree in co-relation 4941. Up to 1804 conditions per place. [2024-11-10 22:19:36,366 INFO L140 encePairwiseOnDemand]: 185/189 looper letters, 67 selfloop transitions, 7 changer transitions 0/156 dead transitions. [2024-11-10 22:19:36,367 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 156 transitions, 507 flow [2024-11-10 22:19:36,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 22:19:36,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 22:19:36,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 650 transitions. [2024-11-10 22:19:36,369 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.491307634164777 [2024-11-10 22:19:36,369 INFO L175 Difference]: Start difference. First operand has 155 places, 153 transitions, 337 flow. Second operand 7 states and 650 transitions. [2024-11-10 22:19:36,369 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 156 transitions, 507 flow [2024-11-10 22:19:36,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 156 transitions, 493 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:19:36,372 INFO L231 Difference]: Finished difference. Result has 161 places, 156 transitions, 370 flow [2024-11-10 22:19:36,373 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=153, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=370, PETRI_PLACES=161, PETRI_TRANSITIONS=156} [2024-11-10 22:19:36,374 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, 11 predicate places. [2024-11-10 22:19:36,374 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 156 transitions, 370 flow [2024-11-10 22:19:36,375 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 83.4) internal successors, (834), 10 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:36,375 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:19:36,375 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:19:36,393 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 22:19:36,578 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,SelfDestructingSolverStorable3 [2024-11-10 22:19:36,579 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-10 22:19:36,579 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:19:36,579 INFO L85 PathProgramCache]: Analyzing trace with hash 2075115551, now seen corresponding path program 2 times [2024-11-10 22:19:36,580 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:19:36,580 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625373468] [2024-11-10 22:19:36,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:36,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:19:36,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:36,641 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-10 22:19:36,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:19:36,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625373468] [2024-11-10 22:19:36,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625373468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:19:36,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:19:36,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:19:36,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [144404218] [2024-11-10 22:19:36,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:19:36,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:19:36,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:19:36,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:19:36,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:19:36,654 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 81 out of 189 [2024-11-10 22:19:36,654 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 156 transitions, 370 flow. Second operand has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:36,654 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:19:36,654 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 81 of 189 [2024-11-10 22:19:36,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:19:36,995 INFO L124 PetriNetUnfolderBase]: 949/2866 cut-off events. [2024-11-10 22:19:36,995 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2024-11-10 22:19:36,999 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4719 conditions, 2866 events. 949/2866 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 23233 event pairs, 0 based on Foata normal form. 21/2669 useless extension candidates. Maximal degree in co-relation 4668. Up to 1753 conditions per place. [2024-11-10 22:19:37,006 INFO L140 encePairwiseOnDemand]: 183/189 looper letters, 115 selfloop transitions, 3 changer transitions 0/197 dead transitions. [2024-11-10 22:19:37,006 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 197 transitions, 688 flow [2024-11-10 22:19:37,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:19:37,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:19:37,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 440 transitions. [2024-11-10 22:19:37,008 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.582010582010582 [2024-11-10 22:19:37,008 INFO L175 Difference]: Start difference. First operand has 161 places, 156 transitions, 370 flow. Second operand 4 states and 440 transitions. [2024-11-10 22:19:37,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 197 transitions, 688 flow [2024-11-10 22:19:37,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 160 places, 197 transitions, 680 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-10 22:19:37,011 INFO L231 Difference]: Finished difference. Result has 161 places, 154 transitions, 368 flow [2024-11-10 22:19:37,011 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=358, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=151, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=368, PETRI_PLACES=161, PETRI_TRANSITIONS=154} [2024-11-10 22:19:37,012 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, 11 predicate places. [2024-11-10 22:19:37,012 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 154 transitions, 368 flow [2024-11-10 22:19:37,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 83.0) internal successors, (332), 4 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:37,013 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:19:37,013 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:19:37,013 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 22:19:37,013 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-10 22:19:37,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:19:37,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1593988658, now seen corresponding path program 1 times [2024-11-10 22:19:37,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:19:37,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706978595] [2024-11-10 22:19:37,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:37,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:19:37,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:37,130 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:19:37,130 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:19:37,130 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706978595] [2024-11-10 22:19:37,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706978595] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:19:37,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1019450551] [2024-11-10 22:19:37,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:37,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:19:37,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:19:37,133 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) [2024-11-10 22:19:37,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 22:19:37,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:37,209 INFO L255 TraceCheckSpWp]: Trace formula consists of 250 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 22:19:37,210 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:19:37,252 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:19:37,253 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:19:37,346 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:19:37,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1019450551] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:19:37,346 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:19:37,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-10 22:19:37,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561877715] [2024-11-10 22:19:37,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:19:37,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 22:19:37,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:19:37,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 22:19:37,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-10 22:19:37,367 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 189 [2024-11-10 22:19:37,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 154 transitions, 368 flow. Second operand has 18 states, 18 states have (on average 83.27777777777777) internal successors, (1499), 18 states have internal predecessors, (1499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:37,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:19:37,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 189 [2024-11-10 22:19:37,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:19:37,787 INFO L124 PetriNetUnfolderBase]: 946/3035 cut-off events. [2024-11-10 22:19:37,788 INFO L125 PetriNetUnfolderBase]: For 136/136 co-relation queries the response was YES. [2024-11-10 22:19:37,792 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4900 conditions, 3035 events. 946/3035 cut-off events. For 136/136 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 25240 event pairs, 800 based on Foata normal form. 4/2746 useless extension candidates. Maximal degree in co-relation 4803. Up to 1769 conditions per place. [2024-11-10 22:19:37,799 INFO L140 encePairwiseOnDemand]: 185/189 looper letters, 67 selfloop transitions, 15 changer transitions 0/162 dead transitions. [2024-11-10 22:19:37,800 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 162 transitions, 596 flow [2024-11-10 22:19:37,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 22:19:37,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 22:19:37,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1316 transitions. [2024-11-10 22:19:37,806 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4641975308641975 [2024-11-10 22:19:37,806 INFO L175 Difference]: Start difference. First operand has 161 places, 154 transitions, 368 flow. Second operand 15 states and 1316 transitions. [2024-11-10 22:19:37,807 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 162 transitions, 596 flow [2024-11-10 22:19:37,808 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 162 transitions, 590 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:19:37,809 INFO L231 Difference]: Finished difference. Result has 176 places, 162 transitions, 475 flow [2024-11-10 22:19:37,810 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=362, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=154, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=475, PETRI_PLACES=176, PETRI_TRANSITIONS=162} [2024-11-10 22:19:37,810 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, 26 predicate places. [2024-11-10 22:19:37,810 INFO L471 AbstractCegarLoop]: Abstraction has has 176 places, 162 transitions, 475 flow [2024-11-10 22:19:37,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 83.27777777777777) internal successors, (1499), 18 states have internal predecessors, (1499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:37,811 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:19:37,811 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:19:37,828 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 22:19:38,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:19:38,012 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-10 22:19:38,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:19:38,013 INFO L85 PathProgramCache]: Analyzing trace with hash 2108463946, now seen corresponding path program 2 times [2024-11-10 22:19:38,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:19:38,013 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420288976] [2024-11-10 22:19:38,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:38,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:19:38,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:38,239 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:19:38,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:19:38,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420288976] [2024-11-10 22:19:38,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420288976] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:19:38,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256831283] [2024-11-10 22:19:38,240 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 22:19:38,240 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:19:38,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:19:38,241 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) [2024-11-10 22:19:38,245 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 22:19:38,321 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 22:19:38,321 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:19:38,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 22:19:38,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:19:38,376 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:19:38,377 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:19:38,546 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:19:38,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256831283] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:19:38,546 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:19:38,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-10 22:19:38,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288313329] [2024-11-10 22:19:38,547 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:19:38,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 22:19:38,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:19:38,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 22:19:38,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-10 22:19:38,570 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 189 [2024-11-10 22:19:38,572 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 162 transitions, 475 flow. Second operand has 23 states, 23 states have (on average 83.26086956521739) internal successors, (1915), 23 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:38,572 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:19:38,572 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 189 [2024-11-10 22:19:38,572 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:19:39,053 INFO L124 PetriNetUnfolderBase]: 946/3047 cut-off events. [2024-11-10 22:19:39,054 INFO L125 PetriNetUnfolderBase]: For 353/353 co-relation queries the response was YES. [2024-11-10 22:19:39,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4950 conditions, 3047 events. 946/3047 cut-off events. For 353/353 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 25278 event pairs, 800 based on Foata normal form. 3/2757 useless extension candidates. Maximal degree in co-relation 4784. Up to 1769 conditions per place. [2024-11-10 22:19:39,069 INFO L140 encePairwiseOnDemand]: 185/189 looper letters, 67 selfloop transitions, 21 changer transitions 0/168 dead transitions. [2024-11-10 22:19:39,069 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 168 transitions, 717 flow [2024-11-10 22:19:39,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-10 22:19:39,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-10 22:19:39,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1813 transitions. [2024-11-10 22:19:39,072 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4567901234567901 [2024-11-10 22:19:39,073 INFO L175 Difference]: Start difference. First operand has 176 places, 162 transitions, 475 flow. Second operand 21 states and 1813 transitions. [2024-11-10 22:19:39,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 168 transitions, 717 flow [2024-11-10 22:19:39,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 168 transitions, 699 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-10 22:19:39,076 INFO L231 Difference]: Finished difference. Result has 195 places, 168 transitions, 580 flow [2024-11-10 22:19:39,076 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=189, PETRI_DIFFERENCE_MINUEND_FLOW=457, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=580, PETRI_PLACES=195, PETRI_TRANSITIONS=168} [2024-11-10 22:19:39,077 INFO L277 CegarLoopForPetriNet]: 150 programPoint places, 45 predicate places. [2024-11-10 22:19:39,077 INFO L471 AbstractCegarLoop]: Abstraction has has 195 places, 168 transitions, 580 flow [2024-11-10 22:19:39,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 83.26086956521739) internal successors, (1915), 23 states have internal predecessors, (1915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:39,078 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:19:39,078 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:19:39,094 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 22:19:39,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:19:39,283 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 26 more)] === [2024-11-10 22:19:39,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:19:39,283 INFO L85 PathProgramCache]: Analyzing trace with hash 798118311, now seen corresponding path program 3 times [2024-11-10 22:19:39,283 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:19:39,283 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593928115] [2024-11-10 22:19:39,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:39,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:19:39,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:19:39,313 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:19:39,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:19:39,365 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:19:39,369 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 22:19:39,370 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 29 remaining) [2024-11-10 22:19:39,372 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 29 remaining) [2024-11-10 22:19:39,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 29 remaining) [2024-11-10 22:19:39,375 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 29 remaining) [2024-11-10 22:19:39,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 29 remaining) [2024-11-10 22:19:39,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 29 remaining) [2024-11-10 22:19:39,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 29 remaining) [2024-11-10 22:19:39,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 29 remaining) [2024-11-10 22:19:39,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 29 remaining) [2024-11-10 22:19:39,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 29 remaining) [2024-11-10 22:19:39,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 29 remaining) [2024-11-10 22:19:39,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 29 remaining) [2024-11-10 22:19:39,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 29 remaining) [2024-11-10 22:19:39,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 29 remaining) [2024-11-10 22:19:39,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 29 remaining) [2024-11-10 22:19:39,376 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 29 remaining) [2024-11-10 22:19:39,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 29 remaining) [2024-11-10 22:19:39,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 29 remaining) [2024-11-10 22:19:39,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 29 remaining) [2024-11-10 22:19:39,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 29 remaining) [2024-11-10 22:19:39,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 29 remaining) [2024-11-10 22:19:39,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 29 remaining) [2024-11-10 22:19:39,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 29 remaining) [2024-11-10 22:19:39,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 29 remaining) [2024-11-10 22:19:39,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 29 remaining) [2024-11-10 22:19:39,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 29 remaining) [2024-11-10 22:19:39,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 29 remaining) [2024-11-10 22:19:39,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 29 remaining) [2024-11-10 22:19:39,377 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 29 remaining) [2024-11-10 22:19:39,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 22:19:39,378 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1] [2024-11-10 22:19:39,384 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 22:19:39,384 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-10 22:19:39,451 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-10 22:19:39,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 196 places, 247 transitions, 510 flow [2024-11-10 22:19:39,481 INFO L124 PetriNetUnfolderBase]: 110/489 cut-off events. [2024-11-10 22:19:39,481 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 22:19:39,485 INFO L83 FinitePrefix]: Finished finitePrefix Result has 501 conditions, 489 events. 110/489 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2691 event pairs, 0 based on Foata normal form. 0/321 useless extension candidates. Maximal degree in co-relation 301. Up to 12 conditions per place. [2024-11-10 22:19:39,485 INFO L82 GeneralOperation]: Start removeDead. Operand has 196 places, 247 transitions, 510 flow [2024-11-10 22:19:39,489 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 196 places, 247 transitions, 510 flow [2024-11-10 22:19:39,489 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:19:39,490 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;@3f509332, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:19:39,490 INFO L334 AbstractCegarLoop]: Starting to check reachability of 35 error locations. [2024-11-10 22:19:39,492 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:19:39,492 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events. [2024-11-10 22:19:39,492 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:19:39,492 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:19:39,492 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 22:19:39,492 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-10 22:19:39,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:19:39,492 INFO L85 PathProgramCache]: Analyzing trace with hash 34707052, now seen corresponding path program 1 times [2024-11-10 22:19:39,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:19:39,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111971336] [2024-11-10 22:19:39,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:39,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:19:39,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:39,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:19:39,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:19:39,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111971336] [2024-11-10 22:19:39,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111971336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:19:39,523 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:19:39,524 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:19:39,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2119558163] [2024-11-10 22:19:39,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:19:39,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:19:39,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:19:39,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:19:39,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:19:39,530 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 247 [2024-11-10 22:19:39,531 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 196 places, 247 transitions, 510 flow. Second operand has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 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) [2024-11-10 22:19:39,531 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:19:39,531 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 247 [2024-11-10 22:19:39,531 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:19:45,873 INFO L124 PetriNetUnfolderBase]: 39869/89742 cut-off events. [2024-11-10 22:19:45,874 INFO L125 PetriNetUnfolderBase]: For 141/141 co-relation queries the response was YES. [2024-11-10 22:19:46,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147858 conditions, 89742 events. 39869/89742 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 2599. Compared 1082187 event pairs, 34920 based on Foata normal form. 28186/109161 useless extension candidates. Maximal degree in co-relation 109796. Up to 58002 conditions per place. [2024-11-10 22:19:46,529 INFO L140 encePairwiseOnDemand]: 195/247 looper letters, 94 selfloop transitions, 3 changer transitions 0/203 dead transitions. [2024-11-10 22:19:46,530 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 203 transitions, 616 flow [2024-11-10 22:19:46,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:19:46,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:19:46,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 571 transitions. [2024-11-10 22:19:46,534 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5779352226720648 [2024-11-10 22:19:46,534 INFO L175 Difference]: Start difference. First operand has 196 places, 247 transitions, 510 flow. Second operand 4 states and 571 transitions. [2024-11-10 22:19:46,534 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 203 transitions, 616 flow [2024-11-10 22:19:46,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 203 transitions, 616 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:19:46,539 INFO L231 Difference]: Finished difference. Result has 201 places, 203 transitions, 442 flow [2024-11-10 22:19:46,541 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=418, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=442, PETRI_PLACES=201, PETRI_TRANSITIONS=203} [2024-11-10 22:19:46,542 INFO L277 CegarLoopForPetriNet]: 196 programPoint places, 5 predicate places. [2024-11-10 22:19:46,542 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 203 transitions, 442 flow [2024-11-10 22:19:46,542 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 106.75) internal successors, (427), 4 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) [2024-11-10 22:19:46,545 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:19:46,545 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-10 22:19:46,545 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 22:19:46,545 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-10 22:19:46,546 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:19:46,546 INFO L85 PathProgramCache]: Analyzing trace with hash -616431827, now seen corresponding path program 1 times [2024-11-10 22:19:46,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:19:46,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509696995] [2024-11-10 22:19:46,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:46,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:19:46,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:46,606 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:19:46,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:19:46,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509696995] [2024-11-10 22:19:46,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509696995] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:19:46,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1637696734] [2024-11-10 22:19:46,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:46,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:19:46,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:19:46,610 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) [2024-11-10 22:19:46,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 22:19:46,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:46,683 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:19:46,684 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:19:46,708 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:19:46,708 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:19:46,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1637696734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:19:46,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:19:46,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-10 22:19:46,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513093235] [2024-11-10 22:19:46,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:19:46,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:19:46,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:19:46,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:19:46,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:19:46,717 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 247 [2024-11-10 22:19:46,718 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 203 transitions, 442 flow. Second operand has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:46,718 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:19:46,718 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 247 [2024-11-10 22:19:46,718 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:19:53,461 INFO L124 PetriNetUnfolderBase]: 39869/89741 cut-off events. [2024-11-10 22:19:53,462 INFO L125 PetriNetUnfolderBase]: For 147/147 co-relation queries the response was YES. [2024-11-10 22:19:53,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147868 conditions, 89741 events. 39869/89741 cut-off events. For 147/147 co-relation queries the response was YES. Maximal size of possible extension queue 2599. Compared 1082145 event pairs, 34920 based on Foata normal form. 1/80975 useless extension candidates. Maximal degree in co-relation 147848. Up to 57996 conditions per place. [2024-11-10 22:19:53,980 INFO L140 encePairwiseOnDemand]: 242/247 looper letters, 90 selfloop transitions, 6 changer transitions 0/202 dead transitions. [2024-11-10 22:19:53,980 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 202 transitions, 630 flow [2024-11-10 22:19:53,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:19:53,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:19:53,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 733 transitions. [2024-11-10 22:19:53,982 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49460188933873145 [2024-11-10 22:19:53,982 INFO L175 Difference]: Start difference. First operand has 201 places, 203 transitions, 442 flow. Second operand 6 states and 733 transitions. [2024-11-10 22:19:53,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 202 transitions, 630 flow [2024-11-10 22:19:53,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 204 places, 202 transitions, 628 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:19:53,986 INFO L231 Difference]: Finished difference. Result has 204 places, 202 transitions, 448 flow [2024-11-10 22:19:53,987 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=448, PETRI_PLACES=204, PETRI_TRANSITIONS=202} [2024-11-10 22:19:53,987 INFO L277 CegarLoopForPetriNet]: 196 programPoint places, 8 predicate places. [2024-11-10 22:19:53,987 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 202 transitions, 448 flow [2024-11-10 22:19:53,987 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 106.83333333333333) internal successors, (641), 6 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:53,988 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:19:53,988 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-10 22:19:54,001 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-10 22:19:54,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-10 22:19:54,189 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-10 22:19:54,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:19:54,189 INFO L85 PathProgramCache]: Analyzing trace with hash -1929516376, now seen corresponding path program 1 times [2024-11-10 22:19:54,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:19:54,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1492722907] [2024-11-10 22:19:54,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:54,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:19:54,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:54,219 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:19:54,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:19:54,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1492722907] [2024-11-10 22:19:54,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1492722907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:19:54,220 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:19:54,220 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:19:54,221 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403177935] [2024-11-10 22:19:54,221 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:19:54,222 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:19:54,222 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:19:54,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:19:54,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:19:54,227 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 107 out of 247 [2024-11-10 22:19:54,227 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 202 transitions, 448 flow. Second operand has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:54,227 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:19:54,227 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 107 of 247 [2024-11-10 22:19:54,227 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:00,365 INFO L124 PetriNetUnfolderBase]: 39869/89740 cut-off events. [2024-11-10 22:20:00,366 INFO L125 PetriNetUnfolderBase]: For 158/158 co-relation queries the response was YES. [2024-11-10 22:20:00,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147869 conditions, 89740 events. 39869/89740 cut-off events. For 158/158 co-relation queries the response was YES. Maximal size of possible extension queue 2597. Compared 1082187 event pairs, 34920 based on Foata normal form. 1/80976 useless extension candidates. Maximal degree in co-relation 147843. Up to 57999 conditions per place. [2024-11-10 22:20:00,941 INFO L140 encePairwiseOnDemand]: 244/247 looper letters, 90 selfloop transitions, 4 changer transitions 0/201 dead transitions. [2024-11-10 22:20:00,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 201 transitions, 632 flow [2024-11-10 22:20:00,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:20:00,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:20:00,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 414 transitions. [2024-11-10 22:20:00,944 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5587044534412956 [2024-11-10 22:20:00,944 INFO L175 Difference]: Start difference. First operand has 204 places, 202 transitions, 448 flow. Second operand 3 states and 414 transitions. [2024-11-10 22:20:00,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 201 transitions, 632 flow [2024-11-10 22:20:00,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 201 transitions, 622 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-10 22:20:00,947 INFO L231 Difference]: Finished difference. Result has 201 places, 201 transitions, 442 flow [2024-11-10 22:20:00,947 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=442, PETRI_PLACES=201, PETRI_TRANSITIONS=201} [2024-11-10 22:20:00,948 INFO L277 CegarLoopForPetriNet]: 196 programPoint places, 5 predicate places. [2024-11-10 22:20:00,948 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 201 transitions, 442 flow [2024-11-10 22:20:00,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.66666666666667) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:20:00,948 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:00,948 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:00,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 22:20:00,948 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-10 22:20:00,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:00,949 INFO L85 PathProgramCache]: Analyzing trace with hash -920627888, now seen corresponding path program 1 times [2024-11-10 22:20:00,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:00,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722385413] [2024-11-10 22:20:00,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:00,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:00,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:00,994 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:00,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:00,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722385413] [2024-11-10 22:20:00,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1722385413] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:20:00,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [697039902] [2024-11-10 22:20:00,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:00,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:00,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:20:01,017 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) [2024-11-10 22:20:01,021 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 22:20:01,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:01,096 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:20:01,097 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:20:01,397 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:01,398 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:20:01,418 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:01,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [697039902] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:20:01,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:20:01,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-10 22:20:01,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [401341989] [2024-11-10 22:20:01,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:20:01,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 22:20:01,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:01,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 22:20:01,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 22:20:01,426 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 106 out of 247 [2024-11-10 22:20:01,427 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 201 transitions, 442 flow. Second operand has 10 states, 10 states have (on average 107.4) internal successors, (1074), 10 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:20:01,428 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:01,428 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 106 of 247 [2024-11-10 22:20:01,428 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:08,104 INFO L124 PetriNetUnfolderBase]: 39869/89746 cut-off events. [2024-11-10 22:20:08,104 INFO L125 PetriNetUnfolderBase]: For 174/174 co-relation queries the response was YES. [2024-11-10 22:20:08,334 INFO L83 FinitePrefix]: Finished finitePrefix Result has 147885 conditions, 89746 events. 39869/89746 cut-off events. For 174/174 co-relation queries the response was YES. Maximal size of possible extension queue 2597. Compared 1082534 event pairs, 34920 based on Foata normal form. 2/80983 useless extension candidates. Maximal degree in co-relation 147838. Up to 57998 conditions per place. [2024-11-10 22:20:08,856 INFO L140 encePairwiseOnDemand]: 243/247 looper letters, 91 selfloop transitions, 7 changer transitions 0/204 dead transitions. [2024-11-10 22:20:08,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 204 transitions, 660 flow [2024-11-10 22:20:08,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 22:20:08,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 22:20:08,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 842 transitions. [2024-11-10 22:20:08,858 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4869866975130133 [2024-11-10 22:20:08,859 INFO L175 Difference]: Start difference. First operand has 201 places, 201 transitions, 442 flow. Second operand 7 states and 842 transitions. [2024-11-10 22:20:08,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 204 transitions, 660 flow [2024-11-10 22:20:08,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 205 places, 204 transitions, 646 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:20:08,862 INFO L231 Difference]: Finished difference. Result has 207 places, 204 transitions, 475 flow [2024-11-10 22:20:08,862 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=247, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=201, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=475, PETRI_PLACES=207, PETRI_TRANSITIONS=204} [2024-11-10 22:20:08,863 INFO L277 CegarLoopForPetriNet]: 196 programPoint places, 11 predicate places. [2024-11-10 22:20:08,863 INFO L471 AbstractCegarLoop]: Abstraction has has 207 places, 204 transitions, 475 flow [2024-11-10 22:20:08,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 107.4) internal successors, (1074), 10 states have internal predecessors, (1074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:20:08,864 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:08,864 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:08,879 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-10 22:20:09,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:09,065 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (and 32 more)] === [2024-11-10 22:20:09,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:09,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1043385998, now seen corresponding path program 2 times [2024-11-10 22:20:09,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:09,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334348916] [2024-11-10 22:20:09,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:09,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:09,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:09,108 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-10 22:20:09,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:09,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334348916] [2024-11-10 22:20:09,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334348916] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:20:09,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:20:09,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:20:09,109 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085843842] [2024-11-10 22:20:09,109 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:20:09,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:20:09,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:09,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:20:09,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:20:09,114 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 247 [2024-11-10 22:20:09,115 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 204 transitions, 475 flow. Second operand has 4 states, 4 states have (on average 107.0) internal successors, (428), 4 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:20:09,115 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:09,115 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 247 [2024-11-10 22:20:09,115 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand