./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.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/13-privatized_68-pfscan_protected_loop_minimal_interval_true.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 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:17:19,705 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:17:19,781 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:17:19,787 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:17:19,788 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:17:19,817 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:17:19,819 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:17:19,819 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:17:19,820 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:17:19,821 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:17:19,822 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:17:19,822 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:17:19,823 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:17:19,823 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:17:19,823 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:17:19,823 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:17:19,824 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:17:19,824 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:17:19,824 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:17:19,825 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:17:19,825 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:17:19,825 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:17:19,826 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:17:19,826 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:17:19,826 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:17:19,827 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:17:19,827 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:17:19,827 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:17:19,828 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:17:19,828 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:17:19,828 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:17:19,828 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:17:19,829 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:17:19,829 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:17:19,829 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:17:19,830 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:17:19,830 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:17:19,830 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:17:19,830 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:17:19,831 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:17:19,831 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:17:19,833 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:17:19,833 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:17:19,833 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:17:19,833 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6aeaf730cbe4eb831d189bfd9925d1660c7714b9e685f389bc2495c0943d6472 [2024-11-10 22:17:20,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:17:20,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:17:20,110 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:17:20,111 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:17:20,111 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:17:20,113 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-11-10 22:17:21,657 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:17:21,907 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:17:21,911 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-11-10 22:17:21,929 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1a2772da/46e4e7cb3a604469877fd303aa3e7185/FLAG8db633647 [2024-11-10 22:17:21,941 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1a2772da/46e4e7cb3a604469877fd303aa3e7185 [2024-11-10 22:17:21,944 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:17:21,945 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:17:21,946 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:17:21,946 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:17:21,950 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:17:21,951 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:17:21" (1/1) ... [2024-11-10 22:17:21,951 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@73ce5cf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:21, skipping insertion in model container [2024-11-10 22:17:21,951 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:17:21" (1/1) ... [2024-11-10 22:17:21,992 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:17:22,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:17:22,407 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:17:22,460 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:17:22,531 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:17:22,531 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:22 WrapperNode [2024-11-10 22:17:22,531 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:17:22,532 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:17:22,533 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:17:22,533 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:17:22,540 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:22" (1/1) ... [2024-11-10 22:17:22,553 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:22" (1/1) ... [2024-11-10 22:17:22,596 INFO L138 Inliner]: procedures = 165, calls = 35, calls flagged for inlining = 8, calls inlined = 9, statements flattened = 126 [2024-11-10 22:17:22,597 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:17:22,598 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:17:22,598 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:17:22,598 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:17:22,608 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:22" (1/1) ... [2024-11-10 22:17:22,609 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:22" (1/1) ... [2024-11-10 22:17:22,613 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:22" (1/1) ... [2024-11-10 22:17:22,631 INFO L175 MemorySlicer]: Split 18 memory accesses to 2 slices as follows [2, 16]. 89 percent of accesses are in the largest equivalence class. The 8 initializations are split as follows [2, 6]. The 3 writes are split as follows [0, 3]. [2024-11-10 22:17:22,631 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:22" (1/1) ... [2024-11-10 22:17:22,632 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:22" (1/1) ... [2024-11-10 22:17:22,638 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:22" (1/1) ... [2024-11-10 22:17:22,639 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:22" (1/1) ... [2024-11-10 22:17:22,645 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:22" (1/1) ... [2024-11-10 22:17:22,646 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:22" (1/1) ... [2024-11-10 22:17:22,652 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:17:22,653 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:17:22,654 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:17:22,654 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:17:22,655 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:22" (1/1) ... [2024-11-10 22:17:22,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:17:22,673 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:17:22,688 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 22:17:22,691 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 22:17:22,740 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 22:17:22,742 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 22:17:22,742 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2024-11-10 22:17:22,742 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2024-11-10 22:17:22,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 22:17:22,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 22:17:22,743 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 22:17:22,743 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:17:22,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:17:22,743 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 22:17:22,745 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 22:17:22,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:17:22,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:17:22,747 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 22:17:22,867 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:17:22,869 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:17:23,116 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:17:23,116 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:17:23,273 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:17:23,273 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:17:23,273 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:17:23 BoogieIcfgContainer [2024-11-10 22:17:23,273 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:17:23,277 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:17:23,277 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:17:23,280 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:17:23,280 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:17:21" (1/3) ... [2024-11-10 22:17:23,281 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36925364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:17:23, skipping insertion in model container [2024-11-10 22:17:23,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:17:22" (2/3) ... [2024-11-10 22:17:23,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36925364 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:17:23, skipping insertion in model container [2024-11-10 22:17:23,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:17:23" (3/3) ... [2024-11-10 22:17:23,284 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.i [2024-11-10 22:17:23,300 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:17:23,300 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-10 22:17:23,300 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:17:23,345 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-10 22:17:23,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 43 places, 47 transitions, 98 flow [2024-11-10 22:17:23,401 INFO L124 PetriNetUnfolderBase]: 8/46 cut-off events. [2024-11-10 22:17:23,402 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:17:23,405 INFO L83 FinitePrefix]: Finished finitePrefix Result has 50 conditions, 46 events. 8/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 95 event pairs, 0 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2024-11-10 22:17:23,405 INFO L82 GeneralOperation]: Start removeDead. Operand has 43 places, 47 transitions, 98 flow [2024-11-10 22:17:23,410 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 46 transitions, 95 flow [2024-11-10 22:17:23,417 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:17:23,424 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;@5a74c4a4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:17:23,424 INFO L334 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-11-10 22:17:23,435 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:17:23,436 INFO L124 PetriNetUnfolderBase]: 5/27 cut-off events. [2024-11-10 22:17:23,436 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:17:23,436 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:23,437 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:23,437 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:23,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:23,442 INFO L85 PathProgramCache]: Analyzing trace with hash 179092733, now seen corresponding path program 1 times [2024-11-10 22:17:23,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:23,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366284656] [2024-11-10 22:17:23,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:23,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:23,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:23,972 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 22:17:23,972 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:23,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366284656] [2024-11-10 22:17:23,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366284656] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:23,973 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:23,973 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:17:23,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230041555] [2024-11-10 22:17:23,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:23,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:17:23,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:24,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:17:24,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:17:24,033 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-10 22:17:24,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 46 transitions, 95 flow. Second operand has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:24,036 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:24,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-10 22:17:24,037 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:24,410 INFO L124 PetriNetUnfolderBase]: 371/807 cut-off events. [2024-11-10 22:17:24,410 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:17:24,413 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1478 conditions, 807 events. 371/807 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 4138 event pairs, 38 based on Foata normal form. 92/791 useless extension candidates. Maximal degree in co-relation 1469. Up to 367 conditions per place. [2024-11-10 22:17:24,422 INFO L140 encePairwiseOnDemand]: 35/47 looper letters, 77 selfloop transitions, 9 changer transitions 0/100 dead transitions. [2024-11-10 22:17:24,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 100 transitions, 375 flow [2024-11-10 22:17:24,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:17:24,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:17:24,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 197 transitions. [2024-11-10 22:17:24,436 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6985815602836879 [2024-11-10 22:17:24,438 INFO L175 Difference]: Start difference. First operand has 42 places, 46 transitions, 95 flow. Second operand 6 states and 197 transitions. [2024-11-10 22:17:24,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 100 transitions, 375 flow [2024-11-10 22:17:24,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 100 transitions, 374 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:17:24,447 INFO L231 Difference]: Finished difference. Result has 48 places, 50 transitions, 154 flow [2024-11-10 22:17:24,449 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=154, PETRI_PLACES=48, PETRI_TRANSITIONS=50} [2024-11-10 22:17:24,454 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 6 predicate places. [2024-11-10 22:17:24,454 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 50 transitions, 154 flow [2024-11-10 22:17:24,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.6) internal successors, (83), 5 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:24,455 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:24,455 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:24,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:17:24,456 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:24,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:24,457 INFO L85 PathProgramCache]: Analyzing trace with hash 309434556, now seen corresponding path program 1 times [2024-11-10 22:17:24,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:24,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961229061] [2024-11-10 22:17:24,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:24,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:24,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:24,533 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 22:17:24,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:24,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961229061] [2024-11-10 22:17:24,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961229061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:24,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:24,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:17:24,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174682577] [2024-11-10 22:17:24,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:24,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:17:24,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:24,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:17:24,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:17:24,559 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-10 22:17:24,560 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 50 transitions, 154 flow. Second operand has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:24,560 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:24,560 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-10 22:17:24,560 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:24,848 INFO L124 PetriNetUnfolderBase]: 681/1501 cut-off events. [2024-11-10 22:17:24,850 INFO L125 PetriNetUnfolderBase]: For 385/387 co-relation queries the response was YES. [2024-11-10 22:17:24,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3212 conditions, 1501 events. 681/1501 cut-off events. For 385/387 co-relation queries the response was YES. Maximal size of possible extension queue 63. Compared 9019 event pairs, 328 based on Foata normal form. 26/1384 useless extension candidates. Maximal degree in co-relation 3198. Up to 726 conditions per place. [2024-11-10 22:17:24,864 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 74 selfloop transitions, 6 changer transitions 0/94 dead transitions. [2024-11-10 22:17:24,865 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 94 transitions, 448 flow [2024-11-10 22:17:24,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:17:24,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:17:24,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 123 transitions. [2024-11-10 22:17:24,868 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6542553191489362 [2024-11-10 22:17:24,868 INFO L175 Difference]: Start difference. First operand has 48 places, 50 transitions, 154 flow. Second operand 4 states and 123 transitions. [2024-11-10 22:17:24,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 94 transitions, 448 flow [2024-11-10 22:17:24,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 94 transitions, 448 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:17:24,876 INFO L231 Difference]: Finished difference. Result has 53 places, 55 transitions, 208 flow [2024-11-10 22:17:24,878 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=208, PETRI_PLACES=53, PETRI_TRANSITIONS=55} [2024-11-10 22:17:24,878 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 11 predicate places. [2024-11-10 22:17:24,879 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 55 transitions, 208 flow [2024-11-10 22:17:24,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.5) internal successors, (70), 4 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:24,879 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:24,879 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:24,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 22:17:24,880 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:24,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:24,882 INFO L85 PathProgramCache]: Analyzing trace with hash 1995383246, now seen corresponding path program 1 times [2024-11-10 22:17:24,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:24,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214816923] [2024-11-10 22:17:24,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:24,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:24,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:24,993 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 22:17:24,994 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:24,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214816923] [2024-11-10 22:17:24,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214816923] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:24,995 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:24,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:17:24,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834500895] [2024-11-10 22:17:24,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:24,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:17:24,998 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:24,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:17:25,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:17:25,007 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-10 22:17:25,008 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 55 transitions, 208 flow. Second operand has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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 22:17:25,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:25,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-10 22:17:25,009 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:25,391 INFO L124 PetriNetUnfolderBase]: 888/1887 cut-off events. [2024-11-10 22:17:25,391 INFO L125 PetriNetUnfolderBase]: For 1068/1130 co-relation queries the response was YES. [2024-11-10 22:17:25,395 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4499 conditions, 1887 events. 888/1887 cut-off events. For 1068/1130 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 11779 event pairs, 190 based on Foata normal form. 58/1825 useless extension candidates. Maximal degree in co-relation 4482. Up to 867 conditions per place. [2024-11-10 22:17:25,403 INFO L140 encePairwiseOnDemand]: 38/47 looper letters, 112 selfloop transitions, 19 changer transitions 0/145 dead transitions. [2024-11-10 22:17:25,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 145 transitions, 894 flow [2024-11-10 22:17:25,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:17:25,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:17:25,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 173 transitions. [2024-11-10 22:17:25,407 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6134751773049646 [2024-11-10 22:17:25,408 INFO L175 Difference]: Start difference. First operand has 53 places, 55 transitions, 208 flow. Second operand 6 states and 173 transitions. [2024-11-10 22:17:25,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 145 transitions, 894 flow [2024-11-10 22:17:25,413 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 145 transitions, 881 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:17:25,417 INFO L231 Difference]: Finished difference. Result has 62 places, 71 transitions, 365 flow [2024-11-10 22:17:25,417 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=365, PETRI_PLACES=62, PETRI_TRANSITIONS=71} [2024-11-10 22:17:25,418 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 20 predicate places. [2024-11-10 22:17:25,419 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 71 transitions, 365 flow [2024-11-10 22:17:25,419 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.8) internal successors, (84), 5 states have internal predecessors, (84), 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 22:17:25,419 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:25,419 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:25,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 22:17:25,420 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:25,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:25,421 INFO L85 PathProgramCache]: Analyzing trace with hash 1727338810, now seen corresponding path program 1 times [2024-11-10 22:17:25,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:25,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1118737921] [2024-11-10 22:17:25,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:25,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:25,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:25,538 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 22:17:25,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:25,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1118737921] [2024-11-10 22:17:25,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1118737921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:25,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:25,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:17:25,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363052617] [2024-11-10 22:17:25,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:25,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:17:25,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:25,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:17:25,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:17:25,542 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-10 22:17:25,542 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 71 transitions, 365 flow. Second operand has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 22:17:25,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:25,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-10 22:17:25,543 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:25,767 INFO L124 PetriNetUnfolderBase]: 498/1154 cut-off events. [2024-11-10 22:17:25,768 INFO L125 PetriNetUnfolderBase]: For 1075/1111 co-relation queries the response was YES. [2024-11-10 22:17:25,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3221 conditions, 1154 events. 498/1154 cut-off events. For 1075/1111 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 6677 event pairs, 146 based on Foata normal form. 32/1165 useless extension candidates. Maximal degree in co-relation 3200. Up to 593 conditions per place. [2024-11-10 22:17:25,776 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 76 selfloop transitions, 11 changer transitions 5/109 dead transitions. [2024-11-10 22:17:25,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 109 transitions, 693 flow [2024-11-10 22:17:25,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 22:17:25,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 22:17:25,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 151 transitions. [2024-11-10 22:17:25,779 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6425531914893617 [2024-11-10 22:17:25,779 INFO L175 Difference]: Start difference. First operand has 62 places, 71 transitions, 365 flow. Second operand 5 states and 151 transitions. [2024-11-10 22:17:25,780 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 109 transitions, 693 flow [2024-11-10 22:17:25,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 109 transitions, 681 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-10 22:17:25,789 INFO L231 Difference]: Finished difference. Result has 69 places, 70 transitions, 393 flow [2024-11-10 22:17:25,790 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=393, PETRI_PLACES=69, PETRI_TRANSITIONS=70} [2024-11-10 22:17:25,791 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 27 predicate places. [2024-11-10 22:17:25,792 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 70 transitions, 393 flow [2024-11-10 22:17:25,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.0) internal successors, (76), 4 states have internal predecessors, (76), 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 22:17:25,793 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:25,793 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:25,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 22:17:25,793 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:25,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:25,795 INFO L85 PathProgramCache]: Analyzing trace with hash 262493151, now seen corresponding path program 1 times [2024-11-10 22:17:25,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:25,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41901670] [2024-11-10 22:17:25,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:25,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:25,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:25,858 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 22:17:25,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:25,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41901670] [2024-11-10 22:17:25,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41901670] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:25,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:25,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:17:25,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594738902] [2024-11-10 22:17:25,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:25,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:17:25,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:25,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:17:25,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:17:25,867 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-10 22:17:25,867 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 70 transitions, 393 flow. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:25,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:25,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-10 22:17:25,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:26,116 INFO L124 PetriNetUnfolderBase]: 601/1347 cut-off events. [2024-11-10 22:17:26,117 INFO L125 PetriNetUnfolderBase]: For 1961/1997 co-relation queries the response was YES. [2024-11-10 22:17:26,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3962 conditions, 1347 events. 601/1347 cut-off events. For 1961/1997 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 7816 event pairs, 246 based on Foata normal form. 14/1356 useless extension candidates. Maximal degree in co-relation 3936. Up to 867 conditions per place. [2024-11-10 22:17:26,127 INFO L140 encePairwiseOnDemand]: 40/47 looper letters, 75 selfloop transitions, 12 changer transitions 0/101 dead transitions. [2024-11-10 22:17:26,128 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 101 transitions, 707 flow [2024-11-10 22:17:26,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:17:26,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:17:26,129 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 112 transitions. [2024-11-10 22:17:26,129 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5957446808510638 [2024-11-10 22:17:26,129 INFO L175 Difference]: Start difference. First operand has 69 places, 70 transitions, 393 flow. Second operand 4 states and 112 transitions. [2024-11-10 22:17:26,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 101 transitions, 707 flow [2024-11-10 22:17:26,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 101 transitions, 705 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-10 22:17:26,136 INFO L231 Difference]: Finished difference. Result has 75 places, 76 transitions, 489 flow [2024-11-10 22:17:26,137 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=489, PETRI_PLACES=75, PETRI_TRANSITIONS=76} [2024-11-10 22:17:26,137 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 33 predicate places. [2024-11-10 22:17:26,138 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 76 transitions, 489 flow [2024-11-10 22:17:26,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:26,138 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:26,138 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:26,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 22:17:26,139 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:26,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:26,139 INFO L85 PathProgramCache]: Analyzing trace with hash -770558909, now seen corresponding path program 1 times [2024-11-10 22:17:26,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:26,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622064954] [2024-11-10 22:17:26,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:26,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:26,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:26,260 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:17:26,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:26,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622064954] [2024-11-10 22:17:26,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622064954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:26,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:26,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:17:26,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006022149] [2024-11-10 22:17:26,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:26,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:17:26,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:26,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:17:26,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:17:26,267 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-10 22:17:26,267 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 76 transitions, 489 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:26,267 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:26,267 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-10 22:17:26,267 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:26,476 INFO L124 PetriNetUnfolderBase]: 418/1002 cut-off events. [2024-11-10 22:17:26,476 INFO L125 PetriNetUnfolderBase]: For 2087/2114 co-relation queries the response was YES. [2024-11-10 22:17:26,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3156 conditions, 1002 events. 418/1002 cut-off events. For 2087/2114 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 5593 event pairs, 180 based on Foata normal form. 7/1000 useless extension candidates. Maximal degree in co-relation 3127. Up to 665 conditions per place. [2024-11-10 22:17:26,485 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 63 selfloop transitions, 8 changer transitions 0/89 dead transitions. [2024-11-10 22:17:26,486 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 89 transitions, 689 flow [2024-11-10 22:17:26,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 22:17:26,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 22:17:26,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 131 transitions. [2024-11-10 22:17:26,488 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5574468085106383 [2024-11-10 22:17:26,488 INFO L175 Difference]: Start difference. First operand has 75 places, 76 transitions, 489 flow. Second operand 5 states and 131 transitions. [2024-11-10 22:17:26,488 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 89 transitions, 689 flow [2024-11-10 22:17:26,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 89 transitions, 675 flow, removed 4 selfloop flow, removed 2 redundant places. [2024-11-10 22:17:26,497 INFO L231 Difference]: Finished difference. Result has 79 places, 74 transitions, 482 flow [2024-11-10 22:17:26,497 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=451, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=65, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=482, PETRI_PLACES=79, PETRI_TRANSITIONS=74} [2024-11-10 22:17:26,498 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 37 predicate places. [2024-11-10 22:17:26,498 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 74 transitions, 482 flow [2024-11-10 22:17:26,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:26,499 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:26,499 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:26,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-10 22:17:26,499 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:26,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:26,500 INFO L85 PathProgramCache]: Analyzing trace with hash -1335280636, now seen corresponding path program 1 times [2024-11-10 22:17:26,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:26,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917872126] [2024-11-10 22:17:26,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:26,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:26,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:26,833 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:26,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:26,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917872126] [2024-11-10 22:17:26,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917872126] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:17:26,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228439984] [2024-11-10 22:17:26,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:26,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:17:26,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:17:26,837 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 22:17:26,838 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 22:17:26,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:26,936 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-10 22:17:26,947 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:17:26,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-10 22:17:27,177 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2024-11-10 22:17:27,252 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-10 22:17:27,256 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:27,257 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:17:27,502 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:27,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [228439984] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:17:27,503 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:17:27,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 18 [2024-11-10 22:17:27,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166887105] [2024-11-10 22:17:27,504 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:17:27,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-10 22:17:27,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:27,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-10 22:17:27,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=88, Invalid=292, Unknown=0, NotChecked=0, Total=380 [2024-11-10 22:17:27,516 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 47 [2024-11-10 22:17:27,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 74 transitions, 482 flow. Second operand has 20 states, 20 states have (on average 16.5) internal successors, (330), 20 states have internal predecessors, (330), 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 22:17:27,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:27,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 47 [2024-11-10 22:17:27,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:28,876 INFO L124 PetriNetUnfolderBase]: 1701/3588 cut-off events. [2024-11-10 22:17:28,877 INFO L125 PetriNetUnfolderBase]: For 7832/8046 co-relation queries the response was YES. [2024-11-10 22:17:28,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12069 conditions, 3588 events. 1701/3588 cut-off events. For 7832/8046 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 21866 event pairs, 146 based on Foata normal form. 130/3716 useless extension candidates. Maximal degree in co-relation 12037. Up to 703 conditions per place. [2024-11-10 22:17:28,910 INFO L140 encePairwiseOnDemand]: 38/47 looper letters, 367 selfloop transitions, 95 changer transitions 0/477 dead transitions. [2024-11-10 22:17:28,910 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 477 transitions, 4044 flow [2024-11-10 22:17:28,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-10 22:17:28,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2024-11-10 22:17:28,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 561 transitions. [2024-11-10 22:17:28,912 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5968085106382979 [2024-11-10 22:17:28,913 INFO L175 Difference]: Start difference. First operand has 79 places, 74 transitions, 482 flow. Second operand 20 states and 561 transitions. [2024-11-10 22:17:28,913 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 477 transitions, 4044 flow [2024-11-10 22:17:28,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 477 transitions, 4015 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-10 22:17:28,943 INFO L231 Difference]: Finished difference. Result has 101 places, 176 transitions, 1792 flow [2024-11-10 22:17:28,945 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1792, PETRI_PLACES=101, PETRI_TRANSITIONS=176} [2024-11-10 22:17:28,947 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 59 predicate places. [2024-11-10 22:17:28,947 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 176 transitions, 1792 flow [2024-11-10 22:17:28,948 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 16.5) internal successors, (330), 20 states have internal predecessors, (330), 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 22:17:28,948 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:28,948 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:28,966 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 22:17:29,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:17:29,153 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:29,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:29,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1731219227, now seen corresponding path program 1 times [2024-11-10 22:17:29,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:29,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875440493] [2024-11-10 22:17:29,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:29,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:29,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:29,258 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 22:17:29,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:29,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875440493] [2024-11-10 22:17:29,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875440493] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:29,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:29,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-10 22:17:29,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156683925] [2024-11-10 22:17:29,260 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:29,260 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:17:29,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:29,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:17:29,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:17:29,261 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 47 [2024-11-10 22:17:29,262 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 176 transitions, 1792 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:29,262 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:29,263 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 47 [2024-11-10 22:17:29,265 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:29,852 INFO L124 PetriNetUnfolderBase]: 1435/3245 cut-off events. [2024-11-10 22:17:29,853 INFO L125 PetriNetUnfolderBase]: For 10957/11149 co-relation queries the response was YES. [2024-11-10 22:17:29,868 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11919 conditions, 3245 events. 1435/3245 cut-off events. For 10957/11149 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 20545 event pairs, 617 based on Foata normal form. 39/3279 useless extension candidates. Maximal degree in co-relation 11881. Up to 2468 conditions per place. [2024-11-10 22:17:29,887 INFO L140 encePairwiseOnDemand]: 41/47 looper letters, 172 selfloop transitions, 8 changer transitions 1/202 dead transitions. [2024-11-10 22:17:29,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 202 transitions, 2287 flow [2024-11-10 22:17:29,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:17:29,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:17:29,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 161 transitions. [2024-11-10 22:17:29,889 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5709219858156028 [2024-11-10 22:17:29,889 INFO L175 Difference]: Start difference. First operand has 101 places, 176 transitions, 1792 flow. Second operand 6 states and 161 transitions. [2024-11-10 22:17:29,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 202 transitions, 2287 flow [2024-11-10 22:17:29,925 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 202 transitions, 2056 flow, removed 99 selfloop flow, removed 7 redundant places. [2024-11-10 22:17:29,929 INFO L231 Difference]: Finished difference. Result has 102 places, 177 transitions, 1614 flow [2024-11-10 22:17:29,930 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=1557, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1614, PETRI_PLACES=102, PETRI_TRANSITIONS=177} [2024-11-10 22:17:29,930 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 60 predicate places. [2024-11-10 22:17:29,930 INFO L471 AbstractCegarLoop]: Abstraction has has 102 places, 177 transitions, 1614 flow [2024-11-10 22:17:29,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:17:29,931 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:29,931 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:29,931 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 22:17:29,931 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:29,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:29,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1264803091, now seen corresponding path program 2 times [2024-11-10 22:17:29,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:29,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177839882] [2024-11-10 22:17:29,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:29,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:29,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:30,155 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 22:17:30,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:30,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177839882] [2024-11-10 22:17:30,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177839882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:30,156 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:30,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 22:17:30,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5647149] [2024-11-10 22:17:30,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:30,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 22:17:30,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:30,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 22:17:30,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-10 22:17:30,187 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 47 [2024-11-10 22:17:30,187 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 177 transitions, 1614 flow. Second operand has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 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 22:17:30,188 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:30,188 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 47 [2024-11-10 22:17:30,188 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:31,659 INFO L124 PetriNetUnfolderBase]: 2696/5708 cut-off events. [2024-11-10 22:17:31,660 INFO L125 PetriNetUnfolderBase]: For 16408/16439 co-relation queries the response was YES. [2024-11-10 22:17:31,679 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20425 conditions, 5708 events. 2696/5708 cut-off events. For 16408/16439 co-relation queries the response was YES. Maximal size of possible extension queue 122. Compared 38612 event pairs, 432 based on Foata normal form. 136/5841 useless extension candidates. Maximal degree in co-relation 20387. Up to 2662 conditions per place. [2024-11-10 22:17:31,709 INFO L140 encePairwiseOnDemand]: 31/47 looper letters, 300 selfloop transitions, 189 changer transitions 2/504 dead transitions. [2024-11-10 22:17:31,710 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 504 transitions, 4830 flow [2024-11-10 22:17:31,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-10 22:17:31,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-10 22:17:31,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 530 transitions. [2024-11-10 22:17:31,712 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.451063829787234 [2024-11-10 22:17:31,712 INFO L175 Difference]: Start difference. First operand has 102 places, 177 transitions, 1614 flow. Second operand 25 states and 530 transitions. [2024-11-10 22:17:31,713 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 504 transitions, 4830 flow [2024-11-10 22:17:31,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 504 transitions, 4790 flow, removed 10 selfloop flow, removed 3 redundant places. [2024-11-10 22:17:31,767 INFO L231 Difference]: Finished difference. Result has 138 places, 352 transitions, 3930 flow [2024-11-10 22:17:31,768 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=1598, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=3930, PETRI_PLACES=138, PETRI_TRANSITIONS=352} [2024-11-10 22:17:31,768 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 96 predicate places. [2024-11-10 22:17:31,768 INFO L471 AbstractCegarLoop]: Abstraction has has 138 places, 352 transitions, 3930 flow [2024-11-10 22:17:31,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 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 22:17:31,769 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:31,769 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:31,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 22:17:31,770 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting workerErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:31,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:31,770 INFO L85 PathProgramCache]: Analyzing trace with hash 954042323, now seen corresponding path program 3 times [2024-11-10 22:17:31,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:31,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183543615] [2024-11-10 22:17:31,771 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:31,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:31,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:32,014 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 22:17:32,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:32,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183543615] [2024-11-10 22:17:32,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183543615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:32,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:32,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 22:17:32,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429478152] [2024-11-10 22:17:32,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:32,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 22:17:32,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:32,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 22:17:32,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-11-10 22:17:32,040 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 47 [2024-11-10 22:17:32,041 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 138 places, 352 transitions, 3930 flow. Second operand has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 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 22:17:32,041 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:32,041 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 47 [2024-11-10 22:17:32,041 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:33,844 INFO L124 PetriNetUnfolderBase]: 3425/7289 cut-off events. [2024-11-10 22:17:33,845 INFO L125 PetriNetUnfolderBase]: For 39564/39636 co-relation queries the response was YES. [2024-11-10 22:17:33,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31679 conditions, 7289 events. 3425/7289 cut-off events. For 39564/39636 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 52637 event pairs, 818 based on Foata normal form. 84/7366 useless extension candidates. Maximal degree in co-relation 31626. Up to 3720 conditions per place. [2024-11-10 22:17:33,919 INFO L140 encePairwiseOnDemand]: 33/47 looper letters, 428 selfloop transitions, 219 changer transitions 5/665 dead transitions. [2024-11-10 22:17:33,919 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 159 places, 665 transitions, 8179 flow [2024-11-10 22:17:33,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-10 22:17:33,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-10 22:17:33,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 471 transitions. [2024-11-10 22:17:33,922 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45551257253384914 [2024-11-10 22:17:33,922 INFO L175 Difference]: Start difference. First operand has 138 places, 352 transitions, 3930 flow. Second operand 22 states and 471 transitions. [2024-11-10 22:17:33,922 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 159 places, 665 transitions, 8179 flow [2024-11-10 22:17:34,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 665 transitions, 8094 flow, removed 40 selfloop flow, removed 1 redundant places. [2024-11-10 22:17:34,121 INFO L231 Difference]: Finished difference. Result has 167 places, 481 transitions, 6394 flow [2024-11-10 22:17:34,121 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=3883, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=352, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=186, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=6394, PETRI_PLACES=167, PETRI_TRANSITIONS=481} [2024-11-10 22:17:34,123 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 125 predicate places. [2024-11-10 22:17:34,123 INFO L471 AbstractCegarLoop]: Abstraction has has 167 places, 481 transitions, 6394 flow [2024-11-10 22:17:34,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 14.666666666666666) internal successors, (132), 9 states have internal predecessors, (132), 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 22:17:34,124 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:34,124 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:34,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-10 22:17:34,124 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:34,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:34,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1555973542, now seen corresponding path program 1 times [2024-11-10 22:17:34,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:34,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374454562] [2024-11-10 22:17:34,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:34,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:34,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:34,177 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-10 22:17:34,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:34,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374454562] [2024-11-10 22:17:34,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374454562] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:34,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:17:34,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:17:34,179 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088445868] [2024-11-10 22:17:34,179 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:34,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:17:34,180 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:34,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:17:34,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:17:34,185 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-10 22:17:34,186 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 167 places, 481 transitions, 6394 flow. Second operand has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 22:17:34,186 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:34,186 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-10 22:17:34,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:35,510 INFO L124 PetriNetUnfolderBase]: 3214/6995 cut-off events. [2024-11-10 22:17:35,510 INFO L125 PetriNetUnfolderBase]: For 48536/48771 co-relation queries the response was YES. [2024-11-10 22:17:35,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32148 conditions, 6995 events. 3214/6995 cut-off events. For 48536/48771 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 51006 event pairs, 818 based on Foata normal form. 270/7237 useless extension candidates. Maximal degree in co-relation 32085. Up to 3385 conditions per place. [2024-11-10 22:17:35,588 INFO L140 encePairwiseOnDemand]: 40/47 looper letters, 519 selfloop transitions, 109 changer transitions 0/645 dead transitions. [2024-11-10 22:17:35,588 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 645 transitions, 9739 flow [2024-11-10 22:17:35,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:17:35,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:17:35,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 118 transitions. [2024-11-10 22:17:35,590 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6276595744680851 [2024-11-10 22:17:35,590 INFO L175 Difference]: Start difference. First operand has 167 places, 481 transitions, 6394 flow. Second operand 4 states and 118 transitions. [2024-11-10 22:17:35,590 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 645 transitions, 9739 flow [2024-11-10 22:17:35,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 158 places, 645 transitions, 9409 flow, removed 112 selfloop flow, removed 11 redundant places. [2024-11-10 22:17:35,858 INFO L231 Difference]: Finished difference. Result has 161 places, 503 transitions, 6918 flow [2024-11-10 22:17:35,858 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=5928, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=466, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=6918, PETRI_PLACES=161, PETRI_TRANSITIONS=503} [2024-11-10 22:17:35,859 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 119 predicate places. [2024-11-10 22:17:35,859 INFO L471 AbstractCegarLoop]: Abstraction has has 161 places, 503 transitions, 6918 flow [2024-11-10 22:17:35,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.5) internal successors, (74), 4 states have internal predecessors, (74), 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 22:17:35,859 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:35,860 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:35,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 22:17:35,860 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:35,860 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:35,861 INFO L85 PathProgramCache]: Analyzing trace with hash 990540291, now seen corresponding path program 1 times [2024-11-10 22:17:35,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:35,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [849812470] [2024-11-10 22:17:35,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:35,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:35,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:35,936 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:35,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:35,937 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [849812470] [2024-11-10 22:17:35,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [849812470] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:17:35,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200018826] [2024-11-10 22:17:35,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:35,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:17:35,938 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:17:35,940 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 22:17:35,942 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 22:17:36,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:36,026 INFO L255 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:17:36,028 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:17:36,080 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:36,080 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:17:36,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200018826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:17:36,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:17:36,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-10 22:17:36,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047952510] [2024-11-10 22:17:36,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:17:36,084 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:17:36,084 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:36,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:17:36,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:17:36,095 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-10 22:17:36,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 161 places, 503 transitions, 6918 flow. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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 22:17:36,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:36,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-10 22:17:36,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:37,748 INFO L124 PetriNetUnfolderBase]: 3330/7132 cut-off events. [2024-11-10 22:17:37,749 INFO L125 PetriNetUnfolderBase]: For 52509/52704 co-relation queries the response was YES. [2024-11-10 22:17:37,776 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34576 conditions, 7132 events. 3330/7132 cut-off events. For 52509/52704 co-relation queries the response was YES. Maximal size of possible extension queue 160. Compared 51208 event pairs, 799 based on Foata normal form. 264/7224 useless extension candidates. Maximal degree in co-relation 34515. Up to 4153 conditions per place. [2024-11-10 22:17:37,809 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 561 selfloop transitions, 86 changer transitions 32/697 dead transitions. [2024-11-10 22:17:37,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 165 places, 697 transitions, 10668 flow [2024-11-10 22:17:37,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:17:37,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:17:37,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 173 transitions. [2024-11-10 22:17:37,811 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6134751773049646 [2024-11-10 22:17:37,811 INFO L175 Difference]: Start difference. First operand has 161 places, 503 transitions, 6918 flow. Second operand 6 states and 173 transitions. [2024-11-10 22:17:37,811 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 165 places, 697 transitions, 10668 flow [2024-11-10 22:17:38,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 165 places, 697 transitions, 10650 flow, removed 9 selfloop flow, removed 0 redundant places. [2024-11-10 22:17:38,067 INFO L231 Difference]: Finished difference. Result has 165 places, 502 transitions, 7068 flow [2024-11-10 22:17:38,068 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=6896, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=502, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=7068, PETRI_PLACES=165, PETRI_TRANSITIONS=502} [2024-11-10 22:17:38,069 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 123 predicate places. [2024-11-10 22:17:38,069 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 502 transitions, 7068 flow [2024-11-10 22:17:38,069 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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 22:17:38,069 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:38,069 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:38,089 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 22:17:38,269 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,SelfDestructingSolverStorable11 [2024-11-10 22:17:38,270 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:38,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:38,271 INFO L85 PathProgramCache]: Analyzing trace with hash 641978238, now seen corresponding path program 1 times [2024-11-10 22:17:38,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:38,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243888533] [2024-11-10 22:17:38,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:38,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:38,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:38,333 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:38,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:38,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243888533] [2024-11-10 22:17:38,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243888533] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:17:38,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685990903] [2024-11-10 22:17:38,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:38,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:17:38,335 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:17:38,336 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 22:17:38,338 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 22:17:38,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:38,417 INFO L255 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:17:38,418 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:17:38,461 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:38,461 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:17:38,518 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:38,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685990903] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:17:38,518 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:17:38,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-10 22:17:38,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947420509] [2024-11-10 22:17:38,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:17:38,519 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 22:17:38,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:38,519 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 22:17:38,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-10 22:17:38,544 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 47 [2024-11-10 22:17:38,545 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 502 transitions, 7068 flow. Second operand has 12 states, 12 states have (on average 18.583333333333332) internal successors, (223), 12 states have internal predecessors, (223), 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 22:17:38,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:38,545 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 47 [2024-11-10 22:17:38,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:17:43,040 INFO L124 PetriNetUnfolderBase]: 10448/22004 cut-off events. [2024-11-10 22:17:43,041 INFO L125 PetriNetUnfolderBase]: For 165660/166346 co-relation queries the response was YES. [2024-11-10 22:17:43,158 INFO L83 FinitePrefix]: Finished finitePrefix Result has 108037 conditions, 22004 events. 10448/22004 cut-off events. For 165660/166346 co-relation queries the response was YES. Maximal size of possible extension queue 399. Compared 183520 event pairs, 2072 based on Foata normal form. 845/22829 useless extension candidates. Maximal degree in co-relation 107975. Up to 5979 conditions per place. [2024-11-10 22:17:43,262 INFO L140 encePairwiseOnDemand]: 42/47 looper letters, 1569 selfloop transitions, 211 changer transitions 1/1799 dead transitions. [2024-11-10 22:17:43,263 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 1799 transitions, 28385 flow [2024-11-10 22:17:43,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 22:17:43,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 22:17:43,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 313 transitions. [2024-11-10 22:17:43,264 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6659574468085107 [2024-11-10 22:17:43,264 INFO L175 Difference]: Start difference. First operand has 165 places, 502 transitions, 7068 flow. Second operand 10 states and 313 transitions. [2024-11-10 22:17:43,265 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 1799 transitions, 28385 flow [2024-11-10 22:17:44,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 1799 transitions, 28285 flow, removed 16 selfloop flow, removed 4 redundant places. [2024-11-10 22:17:44,091 INFO L231 Difference]: Finished difference. Result has 173 places, 691 transitions, 10208 flow [2024-11-10 22:17:44,092 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=6995, PETRI_DIFFERENCE_MINUEND_PLACES=161, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=502, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=416, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=10208, PETRI_PLACES=173, PETRI_TRANSITIONS=691} [2024-11-10 22:17:44,092 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 131 predicate places. [2024-11-10 22:17:44,092 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 691 transitions, 10208 flow [2024-11-10 22:17:44,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 18.583333333333332) internal successors, (223), 12 states have internal predecessors, (223), 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 22:17:44,093 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:17:44,093 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:17:44,105 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-10 22:17:44,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:17:44,294 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:17:44,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:17:44,294 INFO L85 PathProgramCache]: Analyzing trace with hash 2126667718, now seen corresponding path program 1 times [2024-11-10 22:17:44,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:17:44,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414714588] [2024-11-10 22:17:44,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:44,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:17:44,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:44,456 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:44,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:17:44,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414714588] [2024-11-10 22:17:44,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414714588] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:17:44,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047669055] [2024-11-10 22:17:44,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:17:44,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:17:44,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:17:44,460 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 22:17:44,461 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 22:17:44,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:17:44,551 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-10 22:17:44,558 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:17:44,844 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 13 [2024-11-10 22:17:44,866 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-10 22:17:44,881 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:44,882 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:17:45,059 INFO L349 Elim1Store]: treesize reduction 10, result has 9.1 percent of original size [2024-11-10 22:17:45,060 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 46 treesize of output 34 [2024-11-10 22:17:45,093 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:17:45,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047669055] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:17:45,094 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:17:45,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 20 [2024-11-10 22:17:45,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313478507] [2024-11-10 22:17:45,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:17:45,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-10 22:17:45,095 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:17:45,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-10 22:17:45,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2024-11-10 22:17:45,161 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2024-11-10 22:17:45,162 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 691 transitions, 10208 flow. Second operand has 21 states, 21 states have (on average 14.0) internal successors, (294), 21 states have internal predecessors, (294), 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 22:17:45,162 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:17:45,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2024-11-10 22:17:45,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:18:06,705 INFO L124 PetriNetUnfolderBase]: 38993/75537 cut-off events. [2024-11-10 22:18:06,705 INFO L125 PetriNetUnfolderBase]: For 582828/582919 co-relation queries the response was YES. [2024-11-10 22:18:07,757 INFO L83 FinitePrefix]: Finished finitePrefix Result has 381831 conditions, 75537 events. 38993/75537 cut-off events. For 582828/582919 co-relation queries the response was YES. Maximal size of possible extension queue 1208. Compared 705864 event pairs, 1505 based on Foata normal form. 1359/76858 useless extension candidates. Maximal degree in co-relation 381767. Up to 11260 conditions per place. [2024-11-10 22:18:08,309 INFO L140 encePairwiseOnDemand]: 29/47 looper letters, 968 selfloop transitions, 3906 changer transitions 0/4883 dead transitions. [2024-11-10 22:18:08,309 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 4883 transitions, 75266 flow [2024-11-10 22:18:08,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2024-11-10 22:18:08,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 118 states. [2024-11-10 22:18:08,313 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 2148 transitions. [2024-11-10 22:18:08,318 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3873061666065633 [2024-11-10 22:18:08,318 INFO L175 Difference]: Start difference. First operand has 173 places, 691 transitions, 10208 flow. Second operand 118 states and 2148 transitions. [2024-11-10 22:18:08,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 4883 transitions, 75266 flow [2024-11-10 22:18:16,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 4883 transitions, 75052 flow, removed 48 selfloop flow, removed 2 redundant places. [2024-11-10 22:18:16,389 INFO L231 Difference]: Finished difference. Result has 353 places, 4223 transitions, 75374 flow [2024-11-10 22:18:16,389 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=47, PETRI_DIFFERENCE_MINUEND_FLOW=10154, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=691, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=590, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=118, PETRI_FLOW=75374, PETRI_PLACES=353, PETRI_TRANSITIONS=4223} [2024-11-10 22:18:16,390 INFO L277 CegarLoopForPetriNet]: 42 programPoint places, 311 predicate places. [2024-11-10 22:18:16,390 INFO L471 AbstractCegarLoop]: Abstraction has has 353 places, 4223 transitions, 75374 flow [2024-11-10 22:18:16,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 14.0) internal successors, (294), 21 states have internal predecessors, (294), 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 22:18:16,390 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:18:16,391 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:18:16,403 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-10 22:18:16,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:18:16,591 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-10 22:18:16,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:18:16,592 INFO L85 PathProgramCache]: Analyzing trace with hash 1548400938, now seen corresponding path program 2 times [2024-11-10 22:18:16,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:18:16,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673477432] [2024-11-10 22:18:16,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:18:16,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:18:16,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:18:16,816 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-10 22:18:16,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:18:16,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673477432] [2024-11-10 22:18:16,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673477432] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:18:16,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1449558657] [2024-11-10 22:18:16,817 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 22:18:16,817 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:18:16,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:18:16,819 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 22:18:16,820 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 22:18:16,898 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 22:18:16,898 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:18:16,899 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-10 22:18:16,901 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:18:16,907 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-11-10 22:18:17,052 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 3 [2024-11-10 22:18:17,224 INFO L349 Elim1Store]: treesize reduction 16, result has 55.6 percent of original size [2024-11-10 22:18:17,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 43 treesize of output 35 [2024-11-10 22:18:17,275 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-10 22:18:17,277 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:18:17,277 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:18:43,200 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 1 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:18:43,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1449558657] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:18:43,200 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:18:43,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11, 11] total 30 [2024-11-10 22:18:43,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507631939] [2024-11-10 22:18:43,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:18:43,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-10 22:18:43,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:18:43,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-10 22:18:43,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=158, Invalid=766, Unknown=6, NotChecked=0, Total=930 [2024-11-10 22:18:43,268 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 47 [2024-11-10 22:18:43,269 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 4223 transitions, 75374 flow. Second operand has 31 states, 31 states have (on average 13.387096774193548) internal successors, (415), 31 states have internal predecessors, (415), 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 22:18:43,271 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:18:43,271 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 47 [2024-11-10 22:18:43,271 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand