./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6f8a234fc2a7dd634bd03f872a0d7e8707283ecf0f996c6ed729f53ab07d6660 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 21:59:44,944 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 21:59:45,024 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-20 21:59:45,031 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 21:59:45,032 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 21:59:45,051 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 21:59:45,051 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 21:59:45,052 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 21:59:45,052 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 21:59:45,052 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 21:59:45,052 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 21:59:45,053 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 21:59:45,053 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 21:59:45,053 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 21:59:45,053 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 21:59:45,054 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 21:59:45,054 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 21:59:45,054 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 21:59:45,054 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 21:59:45,055 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 21:59:45,055 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 21:59:45,058 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 21:59:45,058 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 21:59:45,058 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 21:59:45,058 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 21:59:45,059 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-20 21:59:45,059 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 21:59:45,059 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 21:59:45,059 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 21:59:45,059 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 21:59:45,059 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 21:59:45,060 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 21:59:45,060 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 21:59:45,060 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 21:59:45,060 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 21:59:45,060 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 21:59:45,060 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 21:59:45,061 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 21:59:45,061 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 21:59:45,061 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 21:59:45,064 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 21:59:45,065 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 21:59:45,065 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 21:59:45,065 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 21:59:45,065 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f8a234fc2a7dd634bd03f872a0d7e8707283ecf0f996c6ed729f53ab07d6660 [2024-11-20 21:59:45,259 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 21:59:45,278 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 21:59:45,280 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 21:59:45,281 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 21:59:45,281 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 21:59:45,282 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2024-11-20 21:59:46,715 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 21:59:46,900 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 21:59:46,900 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-poker-hand-symm.wvr.c [2024-11-20 21:59:46,908 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a08c88fe6/bed638f5ca304d108e230e922b7d02cf/FLAG57f06cb3c [2024-11-20 21:59:46,929 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a08c88fe6/bed638f5ca304d108e230e922b7d02cf [2024-11-20 21:59:46,931 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 21:59:46,933 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 21:59:46,934 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 21:59:46,934 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 21:59:46,943 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 21:59:46,943 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:59:46" (1/1) ... [2024-11-20 21:59:46,944 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b1f43e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:59:46, skipping insertion in model container [2024-11-20 21:59:46,946 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 09:59:46" (1/1) ... [2024-11-20 21:59:46,978 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 21:59:47,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 21:59:47,229 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 21:59:47,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 21:59:47,296 INFO L204 MainTranslator]: Completed translation [2024-11-20 21:59:47,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:59:47 WrapperNode [2024-11-20 21:59:47,296 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 21:59:47,297 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 21:59:47,297 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 21:59:47,298 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 21:59:47,303 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:59:47" (1/1) ... [2024-11-20 21:59:47,319 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:59:47" (1/1) ... [2024-11-20 21:59:47,378 INFO L138 Inliner]: procedures = 24, calls = 298, calls flagged for inlining = 70, calls inlined = 98, statements flattened = 1695 [2024-11-20 21:59:47,378 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 21:59:47,379 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 21:59:47,379 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 21:59:47,379 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 21:59:47,395 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:59:47" (1/1) ... [2024-11-20 21:59:47,395 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:59:47" (1/1) ... [2024-11-20 21:59:47,412 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:59:47" (1/1) ... [2024-11-20 21:59:47,466 INFO L175 MemorySlicer]: Split 186 memory accesses to 2 slices as follows [2, 184]. 99 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 8 writes are split as follows [0, 8]. [2024-11-20 21:59:47,467 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:59:47" (1/1) ... [2024-11-20 21:59:47,467 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:59:47" (1/1) ... [2024-11-20 21:59:47,505 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:59:47" (1/1) ... [2024-11-20 21:59:47,521 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:59:47" (1/1) ... [2024-11-20 21:59:47,529 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:59:47" (1/1) ... [2024-11-20 21:59:47,537 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:59:47" (1/1) ... [2024-11-20 21:59:47,546 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 21:59:47,547 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 21:59:47,547 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 21:59:47,547 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 21:59:47,547 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:59:47" (1/1) ... [2024-11-20 21:59:47,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 21:59:47,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:59:47,580 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) [2024-11-20 21:59:47,583 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 [2024-11-20 21:59:47,623 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 21:59:47,623 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-20 21:59:47,623 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-20 21:59:47,623 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-20 21:59:47,623 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-20 21:59:47,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 21:59:47,623 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 21:59:47,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 21:59:47,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 21:59:47,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-20 21:59:47,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-20 21:59:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-20 21:59:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 21:59:47,625 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 21:59:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 21:59:47,625 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 21:59:47,627 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 21:59:47,810 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 21:59:47,812 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 21:59:49,290 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 21:59:49,291 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 21:59:51,167 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 21:59:51,167 INFO L316 CfgBuilder]: Removed 12 assume(true) statements. [2024-11-20 21:59:51,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:59:51 BoogieIcfgContainer [2024-11-20 21:59:51,168 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 21:59:51,170 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 21:59:51,171 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 21:59:51,173 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 21:59:51,173 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 09:59:46" (1/3) ... [2024-11-20 21:59:51,175 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f66f707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:59:51, skipping insertion in model container [2024-11-20 21:59:51,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 09:59:47" (2/3) ... [2024-11-20 21:59:51,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f66f707 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 09:59:51, skipping insertion in model container [2024-11-20 21:59:51,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 09:59:51" (3/3) ... [2024-11-20 21:59:51,177 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-poker-hand-symm.wvr.c [2024-11-20 21:59:51,201 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 21:59:51,205 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 70 error locations. [2024-11-20 21:59:51,206 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 21:59:51,927 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-20 21:59:51,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 158 places, 179 transitions, 372 flow [2024-11-20 21:59:52,183 INFO L124 PetriNetUnfolderBase]: 28/177 cut-off events. [2024-11-20 21:59:52,183 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-20 21:59:52,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 186 conditions, 177 events. 28/177 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 833 event pairs, 0 based on Foata normal form. 0/79 useless extension candidates. Maximal degree in co-relation 123. Up to 7 conditions per place. [2024-11-20 21:59:52,189 INFO L82 GeneralOperation]: Start removeDead. Operand has 158 places, 179 transitions, 372 flow [2024-11-20 21:59:52,194 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 155 places, 176 transitions, 364 flow [2024-11-20 21:59:52,201 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 21:59:52,207 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;@1a17b7d7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 21:59:52,207 INFO L334 AbstractCegarLoop]: Starting to check reachability of 124 error locations. [2024-11-20 21:59:52,210 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 21:59:52,210 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-20 21:59:52,210 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 21:59:52,210 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:59:52,211 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-20 21:59:52,211 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2024-11-20 21:59:52,215 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:59:52,216 INFO L85 PathProgramCache]: Analyzing trace with hash 5566749, now seen corresponding path program 1 times [2024-11-20 21:59:52,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:59:52,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230741733] [2024-11-20 21:59:52,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:59:52,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:59:52,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:59:52,424 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:59:52,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:59:52,425 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230741733] [2024-11-20 21:59:52,425 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230741733] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:59:52,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 21:59:52,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 21:59:52,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057795460] [2024-11-20 21:59:52,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:59:52,434 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 21:59:52,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:59:52,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 21:59:52,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 21:59:52,514 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 179 [2024-11-20 21:59:52,516 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 176 transitions, 364 flow. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2024-11-20 21:59:52,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:59:52,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 179 [2024-11-20 21:59:52,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:59:55,365 INFO L124 PetriNetUnfolderBase]: 6352/9904 cut-off events. [2024-11-20 21:59:55,366 INFO L125 PetriNetUnfolderBase]: For 155/155 co-relation queries the response was YES. [2024-11-20 21:59:55,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19921 conditions, 9904 events. 6352/9904 cut-off events. For 155/155 co-relation queries the response was YES. Maximal size of possible extension queue 526. Compared 60559 event pairs, 5000 based on Foata normal form. 10/5715 useless extension candidates. Maximal degree in co-relation 19544. Up to 9865 conditions per place. [2024-11-20 21:59:55,422 INFO L140 encePairwiseOnDemand]: 114/179 looper letters, 141 selfloop transitions, 25 changer transitions 2/176 dead transitions. [2024-11-20 21:59:55,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 176 transitions, 698 flow [2024-11-20 21:59:55,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 21:59:55,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 21:59:55,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 251 transitions. [2024-11-20 21:59:55,433 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3505586592178771 [2024-11-20 21:59:55,434 INFO L175 Difference]: Start difference. First operand has 155 places, 176 transitions, 364 flow. Second operand 4 states and 251 transitions. [2024-11-20 21:59:55,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 176 transitions, 698 flow [2024-11-20 21:59:55,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 176 transitions, 690 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-20 21:59:55,445 INFO L231 Difference]: Finished difference. Result has 137 places, 174 transitions, 531 flow [2024-11-20 21:59:55,447 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=531, PETRI_PLACES=137, PETRI_TRANSITIONS=174} [2024-11-20 21:59:55,450 INFO L277 CegarLoopForPetriNet]: 155 programPoint places, -18 predicate places. [2024-11-20 21:59:55,450 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 174 transitions, 531 flow [2024-11-20 21:59:55,450 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 4 states have internal predecessors, (47), 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) [2024-11-20 21:59:55,451 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:59:55,451 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-20 21:59:55,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 21:59:55,451 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2024-11-20 21:59:55,452 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:59:55,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1659073949, now seen corresponding path program 1 times [2024-11-20 21:59:55,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:59:55,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1226590018] [2024-11-20 21:59:55,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:59:55,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:59:55,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:59:55,756 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:59:55,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:59:55,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1226590018] [2024-11-20 21:59:55,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1226590018] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:59:55,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [149473854] [2024-11-20 21:59:55,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:59:55,757 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:59:55,757 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:59:55,760 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) [2024-11-20 21:59:55,761 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 21:59:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:59:56,223 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 21:59:56,233 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:59:56,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:59:56,278 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 21:59:56,278 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [149473854] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 21:59:56,278 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 21:59:56,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-20 21:59:56,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282391357] [2024-11-20 21:59:56,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 21:59:56,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 21:59:56,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:59:56,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 21:59:56,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-20 21:59:56,338 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 179 [2024-11-20 21:59:56,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 174 transitions, 531 flow. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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) [2024-11-20 21:59:56,339 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:59:56,339 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 179 [2024-11-20 21:59:56,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 21:59:58,982 INFO L124 PetriNetUnfolderBase]: 6352/9894 cut-off events. [2024-11-20 21:59:58,982 INFO L125 PetriNetUnfolderBase]: For 76/76 co-relation queries the response was YES. [2024-11-20 21:59:58,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19901 conditions, 9894 events. 6352/9894 cut-off events. For 76/76 co-relation queries the response was YES. Maximal size of possible extension queue 558. Compared 60805 event pairs, 5000 based on Foata normal form. 8/5718 useless extension candidates. Maximal degree in co-relation 19713. Up to 9824 conditions per place. [2024-11-20 21:59:59,033 INFO L140 encePairwiseOnDemand]: 146/179 looper letters, 116 selfloop transitions, 42 changer transitions 0/166 dead transitions. [2024-11-20 21:59:59,034 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 166 transitions, 815 flow [2024-11-20 21:59:59,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 21:59:59,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 21:59:59,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 232 transitions. [2024-11-20 21:59:59,036 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.21601489757914338 [2024-11-20 21:59:59,036 INFO L175 Difference]: Start difference. First operand has 137 places, 174 transitions, 531 flow. Second operand 6 states and 232 transitions. [2024-11-20 21:59:59,036 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 166 transitions, 815 flow [2024-11-20 21:59:59,042 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 166 transitions, 815 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 21:59:59,045 INFO L231 Difference]: Finished difference. Result has 132 places, 166 transitions, 583 flow [2024-11-20 21:59:59,047 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=499, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=583, PETRI_PLACES=132, PETRI_TRANSITIONS=166} [2024-11-20 21:59:59,049 INFO L277 CegarLoopForPetriNet]: 155 programPoint places, -23 predicate places. [2024-11-20 21:59:59,050 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 166 transitions, 583 flow [2024-11-20 21:59:59,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 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) [2024-11-20 21:59:59,051 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 21:59:59,051 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-20 21:59:59,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 21:59:59,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:59:59,253 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2024-11-20 21:59:59,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 21:59:59,260 INFO L85 PathProgramCache]: Analyzing trace with hash 108320802, now seen corresponding path program 1 times [2024-11-20 21:59:59,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 21:59:59,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915231776] [2024-11-20 21:59:59,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:59:59,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 21:59:59,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:59:59,344 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:59:59,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 21:59:59,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915231776] [2024-11-20 21:59:59,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915231776] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 21:59:59,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665259237] [2024-11-20 21:59:59,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 21:59:59,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 21:59:59,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 21:59:59,348 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) [2024-11-20 21:59:59,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 21:59:59,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 21:59:59,691 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 21:59:59,692 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 21:59:59,711 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:59:59,711 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 21:59:59,743 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 21:59:59,743 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665259237] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 21:59:59,743 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 21:59:59,744 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-20 21:59:59,744 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99414992] [2024-11-20 21:59:59,744 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 21:59:59,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 21:59:59,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 21:59:59,745 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 21:59:59,745 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-20 21:59:59,824 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 179 [2024-11-20 21:59:59,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 166 transitions, 583 flow. Second operand has 12 states, 12 states have (on average 12.083333333333334) internal successors, (145), 12 states have internal predecessors, (145), 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) [2024-11-20 21:59:59,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 21:59:59,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 179 [2024-11-20 21:59:59,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:00:03,179 INFO L124 PetriNetUnfolderBase]: 6376/9990 cut-off events. [2024-11-20 22:00:03,179 INFO L125 PetriNetUnfolderBase]: For 256/256 co-relation queries the response was YES. [2024-11-20 22:00:03,187 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20277 conditions, 9990 events. 6376/9990 cut-off events. For 256/256 co-relation queries the response was YES. Maximal size of possible extension queue 559. Compared 61807 event pairs, 5000 based on Foata normal form. 24/5835 useless extension candidates. Maximal degree in co-relation 19715. Up to 9859 conditions per place. [2024-11-20 22:00:03,210 INFO L140 encePairwiseOnDemand]: 146/179 looper letters, 133 selfloop transitions, 97 changer transitions 0/238 dead transitions. [2024-11-20 22:00:03,210 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 238 transitions, 1517 flow [2024-11-20 22:00:03,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 22:00:03,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-20 22:00:03,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 364 transitions. [2024-11-20 22:00:03,214 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.20335195530726258 [2024-11-20 22:00:03,214 INFO L175 Difference]: Start difference. First operand has 132 places, 166 transitions, 583 flow. Second operand 10 states and 364 transitions. [2024-11-20 22:00:03,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 238 transitions, 1517 flow [2024-11-20 22:00:03,219 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 238 transitions, 1309 flow, removed 36 selfloop flow, removed 5 redundant places. [2024-11-20 22:00:03,223 INFO L231 Difference]: Finished difference. Result has 139 places, 238 transitions, 1173 flow [2024-11-20 22:00:03,227 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=495, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1173, PETRI_PLACES=139, PETRI_TRANSITIONS=238} [2024-11-20 22:00:03,227 INFO L277 CegarLoopForPetriNet]: 155 programPoint places, -16 predicate places. [2024-11-20 22:00:03,227 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 238 transitions, 1173 flow [2024-11-20 22:00:03,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.083333333333334) internal successors, (145), 12 states have internal predecessors, (145), 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) [2024-11-20 22:00:03,228 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:00:03,228 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:00:03,239 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 22:00:03,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-20 22:00:03,429 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2024-11-20 22:00:03,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:00:03,430 INFO L85 PathProgramCache]: Analyzing trace with hash -1767194340, now seen corresponding path program 1 times [2024-11-20 22:00:03,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:00:03,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624944830] [2024-11-20 22:00:03,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:00:03,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:00:03,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:00:03,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:00:03,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:00:03,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624944830] [2024-11-20 22:00:03,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624944830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:00:03,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:00:03,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 22:00:03,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322619053] [2024-11-20 22:00:03,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:00:03,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 22:00:03,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:00:03,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:00:03,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 22:00:03,596 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 179 [2024-11-20 22:00:03,596 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 238 transitions, 1173 flow. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-11-20 22:00:03,596 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:00:03,596 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 179 [2024-11-20 22:00:03,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:00:05,688 INFO L124 PetriNetUnfolderBase]: 6372/9986 cut-off events. [2024-11-20 22:00:05,688 INFO L125 PetriNetUnfolderBase]: For 335/335 co-relation queries the response was YES. [2024-11-20 22:00:05,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20324 conditions, 9986 events. 6372/9986 cut-off events. For 335/335 co-relation queries the response was YES. Maximal size of possible extension queue 559. Compared 61340 event pairs, 5000 based on Foata normal form. 4/5807 useless extension candidates. Maximal degree in co-relation 20071. Up to 9918 conditions per place. [2024-11-20 22:00:05,721 INFO L140 encePairwiseOnDemand]: 170/179 looper letters, 197 selfloop transitions, 21 changer transitions 0/234 dead transitions. [2024-11-20 22:00:05,721 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 234 transitions, 1593 flow [2024-11-20 22:00:05,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 22:00:05,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 22:00:05,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 219 transitions. [2024-11-20 22:00:05,722 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40782122905027934 [2024-11-20 22:00:05,723 INFO L175 Difference]: Start difference. First operand has 139 places, 238 transitions, 1173 flow. Second operand 3 states and 219 transitions. [2024-11-20 22:00:05,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 234 transitions, 1593 flow [2024-11-20 22:00:05,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 234 transitions, 1491 flow, removed 24 selfloop flow, removed 2 redundant places. [2024-11-20 22:00:05,728 INFO L231 Difference]: Finished difference. Result has 139 places, 234 transitions, 1097 flow [2024-11-20 22:00:05,729 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=1055, PETRI_DIFFERENCE_MINUEND_PLACES=137, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1097, PETRI_PLACES=139, PETRI_TRANSITIONS=234} [2024-11-20 22:00:05,729 INFO L277 CegarLoopForPetriNet]: 155 programPoint places, -16 predicate places. [2024-11-20 22:00:05,729 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 234 transitions, 1097 flow [2024-11-20 22:00:05,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 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) [2024-11-20 22:00:05,733 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:00:05,733 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2024-11-20 22:00:05,733 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 22:00:05,733 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2024-11-20 22:00:05,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:00:05,734 INFO L85 PathProgramCache]: Analyzing trace with hash 230958120, now seen corresponding path program 2 times [2024-11-20 22:00:05,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:00:05,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121928251] [2024-11-20 22:00:05,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:00:05,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:00:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:00:05,924 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 22:00:05,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:00:05,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121928251] [2024-11-20 22:00:05,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121928251] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:00:05,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787382734] [2024-11-20 22:00:05,924 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 22:00:05,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:00:05,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:00:05,926 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) [2024-11-20 22:00:05,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 22:00:06,334 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-20 22:00:06,334 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 22:00:06,339 INFO L255 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 22:00:06,340 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:00:06,404 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-20 22:00:06,404 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:00:06,444 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-20 22:00:06,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787382734] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:00:06,444 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:00:06,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 13 [2024-11-20 22:00:06,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560657495] [2024-11-20 22:00:06,445 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:00:06,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-20 22:00:06,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:00:06,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-20 22:00:06,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-11-20 22:00:06,539 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 179 [2024-11-20 22:00:06,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 234 transitions, 1097 flow. Second operand has 15 states, 15 states have (on average 12.333333333333334) internal successors, (185), 15 states have internal predecessors, (185), 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) [2024-11-20 22:00:06,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:00:06,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 179 [2024-11-20 22:00:06,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:00:09,063 INFO L124 PetriNetUnfolderBase]: 6380/9998 cut-off events. [2024-11-20 22:00:09,063 INFO L125 PetriNetUnfolderBase]: For 308/308 co-relation queries the response was YES. [2024-11-20 22:00:09,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20324 conditions, 9998 events. 6380/9998 cut-off events. For 308/308 co-relation queries the response was YES. Maximal size of possible extension queue 560. Compared 61430 event pairs, 5000 based on Foata normal form. 10/5825 useless extension candidates. Maximal degree in co-relation 20042. Up to 9828 conditions per place. [2024-11-20 22:00:09,099 INFO L140 encePairwiseOnDemand]: 146/179 looper letters, 104 selfloop transitions, 132 changer transitions 0/244 dead transitions. [2024-11-20 22:00:09,099 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 244 transitions, 1608 flow [2024-11-20 22:00:09,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-20 22:00:09,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-20 22:00:09,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 521 transitions. [2024-11-20 22:00:09,104 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.11642458100558659 [2024-11-20 22:00:09,104 INFO L175 Difference]: Start difference. First operand has 139 places, 234 transitions, 1097 flow. Second operand 25 states and 521 transitions. [2024-11-20 22:00:09,104 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 244 transitions, 1608 flow [2024-11-20 22:00:09,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 244 transitions, 1499 flow, removed 10 selfloop flow, removed 5 redundant places. [2024-11-20 22:00:09,109 INFO L231 Difference]: Finished difference. Result has 150 places, 244 transitions, 1291 flow [2024-11-20 22:00:09,110 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=114, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=1291, PETRI_PLACES=150, PETRI_TRANSITIONS=244} [2024-11-20 22:00:09,110 INFO L277 CegarLoopForPetriNet]: 155 programPoint places, -5 predicate places. [2024-11-20 22:00:09,110 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 244 transitions, 1291 flow [2024-11-20 22:00:09,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.333333333333334) internal successors, (185), 15 states have internal predecessors, (185), 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) [2024-11-20 22:00:09,111 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:00:09,111 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:00:09,122 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-20 22:00:09,314 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:00:09,315 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2024-11-20 22:00:09,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:00:09,315 INFO L85 PathProgramCache]: Analyzing trace with hash 458149019, now seen corresponding path program 1 times [2024-11-20 22:00:09,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:00:09,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547806576] [2024-11-20 22:00:09,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:00:09,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:00:09,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:00:09,433 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-20 22:00:09,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:00:09,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547806576] [2024-11-20 22:00:09,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547806576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 22:00:09,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 22:00:09,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 22:00:09,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127480435] [2024-11-20 22:00:09,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 22:00:09,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 22:00:09,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:00:09,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 22:00:09,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 22:00:09,436 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 179 [2024-11-20 22:00:09,436 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 244 transitions, 1291 flow. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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) [2024-11-20 22:00:09,436 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:00:09,436 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 179 [2024-11-20 22:00:09,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:00:12,244 INFO L124 PetriNetUnfolderBase]: 6378/9996 cut-off events. [2024-11-20 22:00:12,244 INFO L125 PetriNetUnfolderBase]: For 307/307 co-relation queries the response was YES. [2024-11-20 22:00:12,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20399 conditions, 9996 events. 6378/9996 cut-off events. For 307/307 co-relation queries the response was YES. Maximal size of possible extension queue 560. Compared 61339 event pairs, 5000 based on Foata normal form. 2/5783 useless extension candidates. Maximal degree in co-relation 19684. Up to 9947 conditions per place. [2024-11-20 22:00:12,283 INFO L140 encePairwiseOnDemand]: 174/179 looper letters, 226 selfloop transitions, 8 changer transitions 0/242 dead transitions. [2024-11-20 22:00:12,283 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 242 transitions, 1750 flow [2024-11-20 22:00:12,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 22:00:12,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 22:00:12,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 213 transitions. [2024-11-20 22:00:12,285 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39664804469273746 [2024-11-20 22:00:12,285 INFO L175 Difference]: Start difference. First operand has 150 places, 244 transitions, 1291 flow. Second operand 3 states and 213 transitions. [2024-11-20 22:00:12,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 242 transitions, 1750 flow [2024-11-20 22:00:12,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 242 transitions, 1283 flow, removed 28 selfloop flow, removed 12 redundant places. [2024-11-20 22:00:12,290 INFO L231 Difference]: Finished difference. Result has 140 places, 242 transitions, 831 flow [2024-11-20 22:00:12,290 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=815, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=242, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=234, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=831, PETRI_PLACES=140, PETRI_TRANSITIONS=242} [2024-11-20 22:00:12,291 INFO L277 CegarLoopForPetriNet]: 155 programPoint places, -15 predicate places. [2024-11-20 22:00:12,291 INFO L471 AbstractCegarLoop]: Abstraction has has 140 places, 242 transitions, 831 flow [2024-11-20 22:00:12,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 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) [2024-11-20 22:00:12,291 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:00:12,292 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:00:12,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 22:00:12,292 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2024-11-20 22:00:12,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:00:12,292 INFO L85 PathProgramCache]: Analyzing trace with hash 851350758, now seen corresponding path program 1 times [2024-11-20 22:00:12,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:00:12,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572990319] [2024-11-20 22:00:12,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:00:12,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:00:12,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:00:12,546 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 22:00:12,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:00:12,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572990319] [2024-11-20 22:00:12,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572990319] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:00:12,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207268373] [2024-11-20 22:00:12,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:00:12,547 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:00:12,547 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:00:12,549 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) [2024-11-20 22:00:12,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 22:00:13,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:00:13,032 INFO L255 TraceCheckSpWp]: Trace formula consists of 395 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-20 22:00:13,034 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:00:13,074 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 22:00:13,074 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:00:13,147 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 22:00:13,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207268373] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:00:13,148 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:00:13,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 11 [2024-11-20 22:00:13,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048296259] [2024-11-20 22:00:13,148 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:00:13,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 22:00:13,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:00:13,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 22:00:13,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-20 22:00:13,274 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 179 [2024-11-20 22:00:13,274 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 242 transitions, 831 flow. Second operand has 11 states, 11 states have (on average 14.363636363636363) internal successors, (158), 11 states have internal predecessors, (158), 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) [2024-11-20 22:00:13,274 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:00:13,274 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 179 [2024-11-20 22:00:13,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:00:15,721 INFO L124 PetriNetUnfolderBase]: 6364/9982 cut-off events. [2024-11-20 22:00:15,722 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-11-20 22:00:15,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20130 conditions, 9982 events. 6364/9982 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 558. Compared 60766 event pairs, 5000 based on Foata normal form. 4/5786 useless extension candidates. Maximal degree in co-relation 20060. Up to 9855 conditions per place. [2024-11-20 22:00:15,760 INFO L140 encePairwiseOnDemand]: 154/179 looper letters, 112 selfloop transitions, 108 changer transitions 0/228 dead transitions. [2024-11-20 22:00:15,761 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 228 transitions, 1198 flow [2024-11-20 22:00:15,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 22:00:15,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2024-11-20 22:00:15,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 315 transitions. [2024-11-20 22:00:15,763 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.13536742587021916 [2024-11-20 22:00:15,763 INFO L175 Difference]: Start difference. First operand has 140 places, 242 transitions, 831 flow. Second operand 13 states and 315 transitions. [2024-11-20 22:00:15,763 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 228 transitions, 1198 flow [2024-11-20 22:00:15,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 228 transitions, 1158 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 22:00:15,767 INFO L231 Difference]: Finished difference. Result has 150 places, 228 transitions, 934 flow [2024-11-20 22:00:15,767 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=718, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=120, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=934, PETRI_PLACES=150, PETRI_TRANSITIONS=228} [2024-11-20 22:00:15,767 INFO L277 CegarLoopForPetriNet]: 155 programPoint places, -5 predicate places. [2024-11-20 22:00:15,768 INFO L471 AbstractCegarLoop]: Abstraction has has 150 places, 228 transitions, 934 flow [2024-11-20 22:00:15,768 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 14.363636363636363) internal successors, (158), 11 states have internal predecessors, (158), 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) [2024-11-20 22:00:15,768 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:00:15,768 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:00:15,780 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-20 22:00:15,971 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:00:15,972 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2024-11-20 22:00:15,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:00:15,972 INFO L85 PathProgramCache]: Analyzing trace with hash -1608873692, now seen corresponding path program 1 times [2024-11-20 22:00:15,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:00:15,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115586587] [2024-11-20 22:00:15,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:00:15,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:00:16,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:00:16,312 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-20 22:00:16,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:00:16,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115586587] [2024-11-20 22:00:16,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115586587] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:00:16,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751007026] [2024-11-20 22:00:16,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:00:16,313 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:00:16,313 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:00:16,315 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) [2024-11-20 22:00:16,317 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 22:00:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:00:16,741 INFO L255 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-20 22:00:16,744 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:00:16,848 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-20 22:00:16,848 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:00:16,960 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-20 22:00:16,961 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751007026] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:00:16,961 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:00:16,961 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2024-11-20 22:00:16,961 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112437961] [2024-11-20 22:00:16,961 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:00:16,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-20 22:00:16,962 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:00:16,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-20 22:00:16,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=378, Unknown=0, NotChecked=0, Total=506 [2024-11-20 22:00:17,091 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 179 [2024-11-20 22:00:17,091 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 150 places, 228 transitions, 934 flow. Second operand has 23 states, 23 states have (on average 13.173913043478262) internal successors, (303), 23 states have internal predecessors, (303), 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) [2024-11-20 22:00:17,091 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:00:17,091 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 179 [2024-11-20 22:00:17,091 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:00:19,553 INFO L124 PetriNetUnfolderBase]: 6348/9966 cut-off events. [2024-11-20 22:00:19,553 INFO L125 PetriNetUnfolderBase]: For 181/181 co-relation queries the response was YES. [2024-11-20 22:00:19,563 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20140 conditions, 9966 events. 6348/9966 cut-off events. For 181/181 co-relation queries the response was YES. Maximal size of possible extension queue 559. Compared 60637 event pairs, 5000 based on Foata normal form. 2/5782 useless extension candidates. Maximal degree in co-relation 19686. Up to 9837 conditions per place. [2024-11-20 22:00:19,590 INFO L140 encePairwiseOnDemand]: 154/179 looper letters, 110 selfloop transitions, 94 changer transitions 0/212 dead transitions. [2024-11-20 22:00:19,591 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 212 transitions, 1242 flow [2024-11-20 22:00:19,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-20 22:00:19,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2024-11-20 22:00:19,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 481 transitions. [2024-11-20 22:00:19,597 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.10748603351955308 [2024-11-20 22:00:19,597 INFO L175 Difference]: Start difference. First operand has 150 places, 228 transitions, 934 flow. Second operand 25 states and 481 transitions. [2024-11-20 22:00:19,597 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 212 transitions, 1242 flow [2024-11-20 22:00:19,602 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 212 transitions, 1183 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-20 22:00:19,605 INFO L231 Difference]: Finished difference. Result has 166 places, 212 transitions, 963 flow [2024-11-20 22:00:19,608 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=775, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=963, PETRI_PLACES=166, PETRI_TRANSITIONS=212} [2024-11-20 22:00:19,608 INFO L277 CegarLoopForPetriNet]: 155 programPoint places, 11 predicate places. [2024-11-20 22:00:19,609 INFO L471 AbstractCegarLoop]: Abstraction has has 166 places, 212 transitions, 963 flow [2024-11-20 22:00:19,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 13.173913043478262) internal successors, (303), 23 states have internal predecessors, (303), 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) [2024-11-20 22:00:19,609 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:00:19,609 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:00:19,618 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-20 22:00:19,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:00:19,811 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2024-11-20 22:00:19,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:00:19,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1173172932, now seen corresponding path program 2 times [2024-11-20 22:00:19,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:00:19,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1538907760] [2024-11-20 22:00:19,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:00:19,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:00:19,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:00:20,284 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-11-20 22:00:20,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:00:20,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1538907760] [2024-11-20 22:00:20,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1538907760] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:00:20,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1042641476] [2024-11-20 22:00:20,284 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 22:00:20,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:00:20,285 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:00:20,286 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 22:00:20,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-20 22:00:20,803 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 22:00:20,803 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 22:00:20,806 INFO L255 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-20 22:00:20,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:00:20,974 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-11-20 22:00:20,974 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:00:21,144 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 0 proven. 35 refuted. 0 times theorem prover too weak. 193 trivial. 0 not checked. [2024-11-20 22:00:21,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1042641476] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:00:21,144 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:00:21,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 35 [2024-11-20 22:00:21,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944365149] [2024-11-20 22:00:21,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:00:21,145 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-20 22:00:21,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:00:21,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-20 22:00:21,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=309, Invalid=881, Unknown=0, NotChecked=0, Total=1190 [2024-11-20 22:00:21,361 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 179 [2024-11-20 22:00:21,362 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 166 places, 212 transitions, 963 flow. Second operand has 35 states, 35 states have (on average 12.771428571428572) internal successors, (447), 35 states have internal predecessors, (447), 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) [2024-11-20 22:00:21,362 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:00:21,362 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 179 [2024-11-20 22:00:21,362 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:00:24,361 INFO L124 PetriNetUnfolderBase]: 6348/9998 cut-off events. [2024-11-20 22:00:24,361 INFO L125 PetriNetUnfolderBase]: For 319/319 co-relation queries the response was YES. [2024-11-20 22:00:24,375 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20322 conditions, 9998 events. 6348/9998 cut-off events. For 319/319 co-relation queries the response was YES. Maximal size of possible extension queue 559. Compared 60635 event pairs, 5000 based on Foata normal form. 6/5818 useless extension candidates. Maximal degree in co-relation 19686. Up to 9835 conditions per place. [2024-11-20 22:00:24,407 INFO L140 encePairwiseOnDemand]: 154/179 looper letters, 110 selfloop transitions, 116 changer transitions 0/234 dead transitions. [2024-11-20 22:00:24,408 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 234 transitions, 1591 flow [2024-11-20 22:00:24,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-20 22:00:24,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2024-11-20 22:00:24,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 479 transitions. [2024-11-20 22:00:24,413 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.11634685450570804 [2024-11-20 22:00:24,413 INFO L175 Difference]: Start difference. First operand has 166 places, 212 transitions, 963 flow. Second operand 23 states and 479 transitions. [2024-11-20 22:00:24,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 234 transitions, 1591 flow [2024-11-20 22:00:24,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 234 transitions, 1295 flow, removed 0 selfloop flow, removed 20 redundant places. [2024-11-20 22:00:24,419 INFO L231 Difference]: Finished difference. Result has 174 places, 234 transitions, 1186 flow [2024-11-20 22:00:24,420 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=711, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=96, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=23, PETRI_FLOW=1186, PETRI_PLACES=174, PETRI_TRANSITIONS=234} [2024-11-20 22:00:24,420 INFO L277 CegarLoopForPetriNet]: 155 programPoint places, 19 predicate places. [2024-11-20 22:00:24,420 INFO L471 AbstractCegarLoop]: Abstraction has has 174 places, 234 transitions, 1186 flow [2024-11-20 22:00:24,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 12.771428571428572) internal successors, (447), 35 states have internal predecessors, (447), 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) [2024-11-20 22:00:24,421 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:00:24,421 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 11, 11, 11, 11, 11, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:00:24,431 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-20 22:00:24,623 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:00:24,624 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2024-11-20 22:00:24,624 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:00:24,624 INFO L85 PathProgramCache]: Analyzing trace with hash 838851553, now seen corresponding path program 1 times [2024-11-20 22:00:24,624 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:00:24,624 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201668549] [2024-11-20 22:00:24,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:00:24,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:00:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:00:25,472 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-11-20 22:00:25,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:00:25,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201668549] [2024-11-20 22:00:25,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201668549] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:00:25,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [797467477] [2024-11-20 22:00:25,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:00:25,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:00:25,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:00:25,475 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 22:00:25,476 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-20 22:00:26,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:00:26,026 INFO L255 TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-11-20 22:00:26,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:00:26,510 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-11-20 22:00:26,510 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:00:26,775 INFO L134 CoverageAnalysis]: Checked inductivity of 510 backedges. 0 proven. 176 refuted. 0 times theorem prover too weak. 334 trivial. 0 not checked. [2024-11-20 22:00:26,775 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [797467477] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 22:00:26,775 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 22:00:26,775 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 50 [2024-11-20 22:00:26,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869184894] [2024-11-20 22:00:26,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 22:00:26,776 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-11-20 22:00:26,777 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 22:00:26,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-11-20 22:00:26,778 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=550, Invalid=1900, Unknown=0, NotChecked=0, Total=2450 [2024-11-20 22:00:27,169 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 179 [2024-11-20 22:00:27,170 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 234 transitions, 1186 flow. Second operand has 50 states, 50 states have (on average 12.56) internal successors, (628), 50 states have internal predecessors, (628), 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) [2024-11-20 22:00:27,170 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 22:00:27,170 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 179 [2024-11-20 22:00:27,170 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 22:00:30,156 INFO L124 PetriNetUnfolderBase]: 6348/10010 cut-off events. [2024-11-20 22:00:30,156 INFO L125 PetriNetUnfolderBase]: For 435/435 co-relation queries the response was YES. [2024-11-20 22:00:30,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20394 conditions, 10010 events. 6348/10010 cut-off events. For 435/435 co-relation queries the response was YES. Maximal size of possible extension queue 559. Compared 60643 event pairs, 5000 based on Foata normal form. 4/5839 useless extension candidates. Maximal degree in co-relation 19692. Up to 9835 conditions per place. [2024-11-20 22:00:30,205 INFO L140 encePairwiseOnDemand]: 154/179 looper letters, 110 selfloop transitions, 124 changer transitions 0/242 dead transitions. [2024-11-20 22:00:30,206 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 242 transitions, 1726 flow [2024-11-20 22:00:30,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-20 22:00:30,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2024-11-20 22:00:30,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 611 transitions. [2024-11-20 22:00:30,208 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.09752593774940144 [2024-11-20 22:00:30,208 INFO L175 Difference]: Start difference. First operand has 174 places, 234 transitions, 1186 flow. Second operand 35 states and 611 transitions. [2024-11-20 22:00:30,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 242 transitions, 1726 flow [2024-11-20 22:00:30,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 242 transitions, 1617 flow, removed 0 selfloop flow, removed 11 redundant places. [2024-11-20 22:00:30,214 INFO L231 Difference]: Finished difference. Result has 199 places, 242 transitions, 1441 flow [2024-11-20 22:00:30,214 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=1085, PETRI_DIFFERENCE_MINUEND_PLACES=163, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=118, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=1441, PETRI_PLACES=199, PETRI_TRANSITIONS=242} [2024-11-20 22:00:30,215 INFO L277 CegarLoopForPetriNet]: 155 programPoint places, 44 predicate places. [2024-11-20 22:00:30,215 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 242 transitions, 1441 flow [2024-11-20 22:00:30,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 12.56) internal successors, (628), 50 states have internal predecessors, (628), 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) [2024-11-20 22:00:30,215 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 22:00:30,215 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 13, 13, 13, 13, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 22:00:30,229 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-20 22:00:30,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:00:30,420 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err9ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err10ASSERT_VIOLATIONINTEGER_OVERFLOW (and 121 more)] === [2024-11-20 22:00:30,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 22:00:30,420 INFO L85 PathProgramCache]: Analyzing trace with hash -14572479, now seen corresponding path program 2 times [2024-11-20 22:00:30,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 22:00:30,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807340873] [2024-11-20 22:00:30,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 22:00:30,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 22:00:30,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 22:00:34,000 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 184 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2024-11-20 22:00:34,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 22:00:34,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807340873] [2024-11-20 22:00:34,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1807340873] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 22:00:34,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1971515613] [2024-11-20 22:00:34,001 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 22:00:34,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 22:00:34,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 22:00:34,003 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 22:00:34,004 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-20 22:00:34,505 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 22:00:34,506 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 22:00:34,516 INFO L255 TraceCheckSpWp]: Trace formula consists of 995 conjuncts, 97 conjuncts are in the unsatisfiable core [2024-11-20 22:00:34,523 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 22:00:34,559 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2024-11-20 22:00:34,617 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 15 treesize of output 1 [2024-11-20 22:00:34,648 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-20 22:00:34,648 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 19 treesize of output 16 [2024-11-20 22:00:34,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:34,713 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:34,739 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:34,759 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:34,783 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-20 22:00:34,783 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 19 treesize of output 16 [2024-11-20 22:00:34,796 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:34,818 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:34,838 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:34,860 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:34,884 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-20 22:00:34,884 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 17 treesize of output 21 [2024-11-20 22:00:34,918 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:34,945 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:34,970 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:34,993 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:35,078 INFO L349 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2024-11-20 22:00:35,079 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 24 treesize of output 28 [2024-11-20 22:00:35,128 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:35,167 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:35,203 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:35,246 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:35,313 INFO L349 Elim1Store]: treesize reduction 36, result has 34.5 percent of original size [2024-11-20 22:00:35,314 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 22 treesize of output 33 [2024-11-20 22:00:35,365 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:35,408 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:35,454 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:35,497 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:35,537 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:35,585 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:35,628 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:35,671 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:35,721 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:35,761 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:35,809 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:35,847 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:35,898 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:36,000 INFO L349 Elim1Store]: treesize reduction 12, result has 52.0 percent of original size [2024-11-20 22:00:36,004 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 25 [2024-11-20 22:00:36,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:36,026 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:36,041 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:36,054 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:36,075 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:36,087 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:36,109 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:36,125 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:36,141 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:36,154 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:36,178 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:36,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:36,291 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-20 22:00:36,308 INFO L134 CoverageAnalysis]: Checked inductivity of 652 backedges. 0 proven. 149 refuted. 0 times theorem prover too weak. 503 trivial. 0 not checked. [2024-11-20 22:00:36,308 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 22:00:36,354 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_949 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_949) c_~index_of_4~0.base) (+ c_~index_of_4~0.offset 16)) 4294967296))) is different from false [2024-11-20 22:00:38,722 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 22:00:38,722 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 41 treesize of output 42 [2024-11-20 22:00:38,901 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-20 22:00:38,908 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 39911427 treesize of output 39714819 [2024-11-20 22:00:39,514 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 599 treesize of output 595 [2024-11-20 22:00:39,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 595 treesize of output 587 [2024-11-20 22:00:39,563 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 587 treesize of output 571 [2024-11-20 22:00:39,586 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1174 treesize of output 1110 [2024-11-20 22:00:39,609 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 1110 treesize of output 982 [2024-11-20 22:00:39,638 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 506 treesize of output 474