./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_86-lists_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_86-lists_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4e7050d36e2131966739d0040816e49ede1f1e8b3b668f65d41876950193b1d8 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:01:15,278 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:01:15,327 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 14:01:15,333 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:01:15,334 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:01:15,356 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:01:15,356 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:01:15,356 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:01:15,357 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:01:15,358 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:01:15,358 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 14:01:15,359 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 14:01:15,359 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:01:15,359 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:01:15,359 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:01:15,360 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:01:15,360 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 14:01:15,360 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 14:01:15,362 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:01:15,362 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 14:01:15,363 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:01:15,363 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 14:01:15,363 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 14:01:15,363 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 14:01:15,363 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:01:15,364 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 14:01:15,364 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:01:15,364 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 14:01:15,364 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:01:15,364 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:01:15,364 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:01:15,364 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:01:15,365 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 14:01:15,365 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 14:01:15,365 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:01:15,365 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:01:15,365 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 14:01:15,365 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 14:01:15,366 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:01:15,366 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 14:01:15,366 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 14:01:15,368 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 14:01:15,368 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 14:01:15,368 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 14:01:15,368 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e7050d36e2131966739d0040816e49ede1f1e8b3b668f65d41876950193b1d8 [2024-11-19 14:01:15,573 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:01:15,590 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:01:15,592 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:01:15,593 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:01:15,594 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:01:15,594 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_86-lists_racing.i [2024-11-19 14:01:16,784 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:01:17,018 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:01:17,019 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_86-lists_racing.i [2024-11-19 14:01:17,041 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/230f6be63/e45c6cc6774f46c8b587d6792f1d9ae8/FLAG79b28fdb7 [2024-11-19 14:01:17,057 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/230f6be63/e45c6cc6774f46c8b587d6792f1d9ae8 [2024-11-19 14:01:17,059 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:01:17,061 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:01:17,062 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:01:17,063 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:01:17,067 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:01:17,068 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:01:17" (1/1) ... [2024-11-19 14:01:17,068 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c89fbe9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:17, skipping insertion in model container [2024-11-19 14:01:17,069 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:01:17" (1/1) ... [2024-11-19 14:01:17,109 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:01:17,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:01:17,626 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:01:17,663 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:01:17,733 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:01:17,734 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:17 WrapperNode [2024-11-19 14:01:17,734 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:01:17,735 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:01:17,735 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:01:17,735 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:01:17,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:17" (1/1) ... [2024-11-19 14:01:17,783 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:17" (1/1) ... [2024-11-19 14:01:17,932 INFO L138 Inliner]: procedures = 280, calls = 1606, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 1810 [2024-11-19 14:01:17,936 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:01:17,937 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:01:17,937 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:01:17,937 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:01:17,955 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:17" (1/1) ... [2024-11-19 14:01:17,955 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:17" (1/1) ... [2024-11-19 14:01:17,985 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:17" (1/1) ... [2024-11-19 14:01:18,066 INFO L175 MemorySlicer]: Split 1569 memory accesses to 8 slices as follows [2, 5, 14, 259, 5, 1280, 2, 2]. 82 percent of accesses are in the largest equivalence class. The 1548 initializations are split as follows [2, 5, 0, 256, 5, 1280, 0, 0]. The 11 writes are split as follows [0, 0, 8, 1, 0, 0, 1, 1]. [2024-11-19 14:01:18,066 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:17" (1/1) ... [2024-11-19 14:01:18,066 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:17" (1/1) ... [2024-11-19 14:01:18,110 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:17" (1/1) ... [2024-11-19 14:01:18,114 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:17" (1/1) ... [2024-11-19 14:01:18,120 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:17" (1/1) ... [2024-11-19 14:01:18,125 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:17" (1/1) ... [2024-11-19 14:01:18,137 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:01:18,138 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:01:18,138 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:01:18,138 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:01:18,139 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:17" (1/1) ... [2024-11-19 14:01:18,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:01:18,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:01:18,198 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) [2024-11-19 14:01:18,201 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 [2024-11-19 14:01:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 14:01:18,241 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 14:01:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 14:01:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 14:01:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 14:01:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 14:01:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-19 14:01:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-19 14:01:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-19 14:01:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-19 14:01:18,242 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-19 14:01:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 14:01:18,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-19 14:01:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-19 14:01:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-19 14:01:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-19 14:01:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-19 14:01:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-19 14:01:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-19 14:01:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-19 14:01:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-19 14:01:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 14:01:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 14:01:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 14:01:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 14:01:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 14:01:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 14:01:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-19 14:01:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-19 14:01:18,243 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-19 14:01:18,244 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-19 14:01:18,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 14:01:18,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 14:01:18,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 14:01:18,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 14:01:18,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 14:01:18,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 14:01:18,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-19 14:01:18,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-19 14:01:18,244 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-19 14:01:18,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 14:01:18,244 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 14:01:18,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 14:01:18,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 14:01:18,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 14:01:18,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 14:01:18,244 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 14:01:18,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-19 14:01:18,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-19 14:01:18,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-19 14:01:18,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 14:01:18,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 14:01:18,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 14:01:18,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 14:01:18,245 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 14:01:18,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 14:01:18,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 14:01:18,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-19 14:01:18,248 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:01:18,248 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:01:18,249 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 14:01:18,410 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:01:18,412 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:01:19,788 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 14:01:19,788 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:01:52,721 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:01:52,721 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-19 14:01:52,721 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:01:52 BoogieIcfgContainer [2024-11-19 14:01:52,721 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:01:52,723 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 14:01:52,723 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 14:01:52,727 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 14:01:52,727 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:01:17" (1/3) ... [2024-11-19 14:01:52,728 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c18531e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:01:52, skipping insertion in model container [2024-11-19 14:01:52,728 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:01:17" (2/3) ... [2024-11-19 14:01:52,729 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c18531e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:01:52, skipping insertion in model container [2024-11-19 14:01:52,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:01:52" (3/3) ... [2024-11-19 14:01:52,731 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_86-lists_racing.i [2024-11-19 14:01:52,744 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 14:01:52,744 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-19 14:01:52,744 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 14:01:52,834 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-19 14:01:52,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 100 transitions, 220 flow [2024-11-19 14:01:52,961 INFO L124 PetriNetUnfolderBase]: 35/203 cut-off events. [2024-11-19 14:01:52,961 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-19 14:01:52,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 220 conditions, 203 events. 35/203 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 831 event pairs, 0 based on Foata normal form. 0/134 useless extension candidates. Maximal degree in co-relation 99. Up to 8 conditions per place. [2024-11-19 14:01:52,966 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 100 transitions, 220 flow [2024-11-19 14:01:52,970 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 100 transitions, 220 flow [2024-11-19 14:01:52,976 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 14:01:52,983 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;@14c9815, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 14:01:52,983 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-19 14:01:53,020 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 14:01:53,021 INFO L124 PetriNetUnfolderBase]: 0/3 cut-off events. [2024-11-19 14:01:53,021 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 14:01:53,021 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:53,022 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-11-19 14:01:53,022 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-19 14:01:53,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:53,027 INFO L85 PathProgramCache]: Analyzing trace with hash 3785784, now seen corresponding path program 1 times [2024-11-19 14:01:53,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:53,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400768546] [2024-11-19 14:01:53,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:53,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:01:53,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:53,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:01:53,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:01:53,828 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400768546] [2024-11-19 14:01:53,828 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400768546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:01:53,828 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:01:53,828 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:01:53,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48220321] [2024-11-19 14:01:53,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:01:53,836 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:01:53,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:01:53,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:01:53,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:01:53,870 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 100 [2024-11-19 14:01:53,872 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 100 transitions, 220 flow. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 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) [2024-11-19 14:01:53,872 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:01:53,872 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 100 [2024-11-19 14:01:53,873 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:01:54,667 INFO L124 PetriNetUnfolderBase]: 2462/5038 cut-off events. [2024-11-19 14:01:54,667 INFO L125 PetriNetUnfolderBase]: For 155/155 co-relation queries the response was YES. [2024-11-19 14:01:54,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9067 conditions, 5038 events. 2462/5038 cut-off events. For 155/155 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 33625 event pairs, 2279 based on Foata normal form. 349/4544 useless extension candidates. Maximal degree in co-relation 7642. Up to 3942 conditions per place. [2024-11-19 14:01:54,692 INFO L140 encePairwiseOnDemand]: 83/100 looper letters, 53 selfloop transitions, 3 changer transitions 0/91 dead transitions. [2024-11-19 14:01:54,692 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 91 transitions, 314 flow [2024-11-19 14:01:54,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:01:54,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:01:54,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 210 transitions. [2024-11-19 14:01:54,701 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.525 [2024-11-19 14:01:54,702 INFO L175 Difference]: Start difference. First operand has 87 places, 100 transitions, 220 flow. Second operand 4 states and 210 transitions. [2024-11-19 14:01:54,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 91 transitions, 314 flow [2024-11-19 14:01:54,706 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 91 transitions, 314 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-19 14:01:54,709 INFO L231 Difference]: Finished difference. Result has 92 places, 91 transitions, 222 flow [2024-11-19 14:01:54,710 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=222, PETRI_PLACES=92, PETRI_TRANSITIONS=91} [2024-11-19 14:01:54,712 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 5 predicate places. [2024-11-19 14:01:54,713 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 91 transitions, 222 flow [2024-11-19 14:01:54,713 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 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) [2024-11-19 14:01:54,713 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:54,713 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2024-11-19 14:01:54,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 14:01:54,714 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-19 14:01:54,714 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:54,714 INFO L85 PathProgramCache]: Analyzing trace with hash 1116886870, now seen corresponding path program 1 times [2024-11-19 14:01:54,714 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:54,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253616093] [2024-11-19 14:01:54,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:54,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:01:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:55,196 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:01:55,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:01:55,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253616093] [2024-11-19 14:01:55,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253616093] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:01:55,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2057505907] [2024-11-19 14:01:55,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:55,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:01:55,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:01:55,200 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) [2024-11-19 14:01:55,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 14:01:55,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:55,729 INFO L255 TraceCheckSpWp]: Trace formula consists of 3762 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 14:01:55,735 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:01:55,769 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:01:55,769 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 14:01:55,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2057505907] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:01:55,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 14:01:55,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-19 14:01:55,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377961640] [2024-11-19 14:01:55,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:01:55,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 14:01:55,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:01:55,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 14:01:55,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-19 14:01:55,778 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 100 [2024-11-19 14:01:55,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 91 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 35.833333333333336) internal successors, (215), 6 states have internal predecessors, (215), 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) [2024-11-19 14:01:55,779 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:01:55,779 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 100 [2024-11-19 14:01:55,779 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:01:56,584 INFO L124 PetriNetUnfolderBase]: 2462/5037 cut-off events. [2024-11-19 14:01:56,584 INFO L125 PetriNetUnfolderBase]: For 157/157 co-relation queries the response was YES. [2024-11-19 14:01:56,591 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9077 conditions, 5037 events. 2462/5037 cut-off events. For 157/157 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 33613 event pairs, 2279 based on Foata normal form. 1/4195 useless extension candidates. Maximal degree in co-relation 9058. Up to 3937 conditions per place. [2024-11-19 14:01:56,608 INFO L140 encePairwiseOnDemand]: 95/100 looper letters, 49 selfloop transitions, 6 changer transitions 0/90 dead transitions. [2024-11-19 14:01:56,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 90 transitions, 328 flow [2024-11-19 14:01:56,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 14:01:56,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-19 14:01:56,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 266 transitions. [2024-11-19 14:01:56,610 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44333333333333336 [2024-11-19 14:01:56,610 INFO L175 Difference]: Start difference. First operand has 92 places, 91 transitions, 222 flow. Second operand 6 states and 266 transitions. [2024-11-19 14:01:56,611 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 90 transitions, 328 flow [2024-11-19 14:01:56,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 90 transitions, 326 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-19 14:01:56,613 INFO L231 Difference]: Finished difference. Result has 95 places, 90 transitions, 228 flow [2024-11-19 14:01:56,614 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=228, PETRI_PLACES=95, PETRI_TRANSITIONS=90} [2024-11-19 14:01:56,614 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 8 predicate places. [2024-11-19 14:01:56,614 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 90 transitions, 228 flow [2024-11-19 14:01:56,615 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 35.833333333333336) internal successors, (215), 6 states have internal predecessors, (215), 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) [2024-11-19 14:01:56,615 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:56,615 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2024-11-19 14:01:56,635 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 14:01:56,815 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 [2024-11-19 14:01:56,816 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-19 14:01:56,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:56,816 INFO L85 PathProgramCache]: Analyzing trace with hash 263758373, now seen corresponding path program 1 times [2024-11-19 14:01:56,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:56,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796671050] [2024-11-19 14:01:56,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:56,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:01:56,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:57,064 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 14:01:57,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:01:57,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796671050] [2024-11-19 14:01:57,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796671050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:01:57,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:01:57,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:01:57,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942931777] [2024-11-19 14:01:57,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:01:57,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:01:57,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:01:57,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:01:57,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:01:57,070 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 100 [2024-11-19 14:01:57,070 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 90 transitions, 228 flow. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-11-19 14:01:57,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:01:57,071 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 100 [2024-11-19 14:01:57,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:01:57,502 INFO L124 PetriNetUnfolderBase]: 2462/5036 cut-off events. [2024-11-19 14:01:57,502 INFO L125 PetriNetUnfolderBase]: For 162/162 co-relation queries the response was YES. [2024-11-19 14:01:57,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9079 conditions, 5036 events. 2462/5036 cut-off events. For 162/162 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 33615 event pairs, 2279 based on Foata normal form. 1/4195 useless extension candidates. Maximal degree in co-relation 9054. Up to 3940 conditions per place. [2024-11-19 14:01:57,531 INFO L140 encePairwiseOnDemand]: 97/100 looper letters, 50 selfloop transitions, 4 changer transitions 0/89 dead transitions. [2024-11-19 14:01:57,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 89 transitions, 332 flow [2024-11-19 14:01:57,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 14:01:57,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-19 14:01:57,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 158 transitions. [2024-11-19 14:01:57,532 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5266666666666666 [2024-11-19 14:01:57,533 INFO L175 Difference]: Start difference. First operand has 95 places, 90 transitions, 228 flow. Second operand 3 states and 158 transitions. [2024-11-19 14:01:57,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 89 transitions, 332 flow [2024-11-19 14:01:57,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 89 transitions, 310 flow, removed 3 selfloop flow, removed 6 redundant places. [2024-11-19 14:01:57,536 INFO L231 Difference]: Finished difference. Result has 90 places, 89 transitions, 210 flow [2024-11-19 14:01:57,536 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=210, PETRI_PLACES=90, PETRI_TRANSITIONS=89} [2024-11-19 14:01:57,536 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 3 predicate places. [2024-11-19 14:01:57,536 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 89 transitions, 210 flow [2024-11-19 14:01:57,537 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-11-19 14:01:57,537 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:57,537 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:01:57,537 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 14:01:57,537 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-19 14:01:57,537 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:57,538 INFO L85 PathProgramCache]: Analyzing trace with hash 68699182, now seen corresponding path program 1 times [2024-11-19 14:01:57,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:57,538 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882048835] [2024-11-19 14:01:57,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:57,538 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:01:57,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:57,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:01:57,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:01:57,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882048835] [2024-11-19 14:01:57,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882048835] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:01:57,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1785810016] [2024-11-19 14:01:57,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:01:57,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:01:58,000 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:01:58,003 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) [2024-11-19 14:01:58,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 14:01:58,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:01:58,487 INFO L255 TraceCheckSpWp]: Trace formula consists of 3751 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 14:01:58,490 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:01:58,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:01:58,505 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:01:58,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:01:58,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1785810016] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:01:58,523 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:01:58,523 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-19 14:01:58,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1406221196] [2024-11-19 14:01:58,523 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:01:58,524 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 14:01:58,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:01:58,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 14:01:58,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 14:01:58,533 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 100 [2024-11-19 14:01:58,534 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 89 transitions, 210 flow. Second operand has 10 states, 10 states have (on average 36.3) internal successors, (363), 10 states have internal predecessors, (363), 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) [2024-11-19 14:01:58,534 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:01:58,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 100 [2024-11-19 14:01:58,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:01:59,069 INFO L124 PetriNetUnfolderBase]: 2462/5040 cut-off events. [2024-11-19 14:01:59,069 INFO L125 PetriNetUnfolderBase]: For 164/164 co-relation queries the response was YES. [2024-11-19 14:01:59,075 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9082 conditions, 5040 events. 2462/5040 cut-off events. For 164/164 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 33627 event pairs, 2279 based on Foata normal form. 2/4201 useless extension candidates. Maximal degree in co-relation 9047. Up to 3938 conditions per place. [2024-11-19 14:01:59,090 INFO L140 encePairwiseOnDemand]: 96/100 looper letters, 50 selfloop transitions, 7 changer transitions 0/92 dead transitions. [2024-11-19 14:01:59,090 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 92 transitions, 339 flow [2024-11-19 14:01:59,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 14:01:59,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-19 14:01:59,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 304 transitions. [2024-11-19 14:01:59,091 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4342857142857143 [2024-11-19 14:01:59,092 INFO L175 Difference]: Start difference. First operand has 90 places, 89 transitions, 210 flow. Second operand 7 states and 304 transitions. [2024-11-19 14:01:59,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 92 transitions, 339 flow [2024-11-19 14:01:59,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 92 transitions, 325 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:01:59,094 INFO L231 Difference]: Finished difference. Result has 96 places, 92 transitions, 236 flow [2024-11-19 14:01:59,094 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=236, PETRI_PLACES=96, PETRI_TRANSITIONS=92} [2024-11-19 14:01:59,095 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 9 predicate places. [2024-11-19 14:01:59,095 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 92 transitions, 236 flow [2024-11-19 14:01:59,095 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 36.3) internal successors, (363), 10 states have internal predecessors, (363), 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) [2024-11-19 14:01:59,096 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:01:59,096 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1] [2024-11-19 14:01:59,119 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-19 14:01:59,296 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-19 14:01:59,297 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-19 14:01:59,297 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:01:59,297 INFO L85 PathProgramCache]: Analyzing trace with hash 950638446, now seen corresponding path program 2 times [2024-11-19 14:01:59,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:01:59,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297023463] [2024-11-19 14:01:59,298 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:01:59,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:01:59,372 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 14:01:59,372 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:01:59,745 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-19 14:01:59,745 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:01:59,745 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297023463] [2024-11-19 14:01:59,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297023463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:01:59,745 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:01:59,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 14:01:59,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094292602] [2024-11-19 14:01:59,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:01:59,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 14:01:59,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:01:59,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 14:01:59,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 14:01:59,752 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 100 [2024-11-19 14:01:59,753 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 92 transitions, 236 flow. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2024-11-19 14:01:59,753 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:01:59,753 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 100 [2024-11-19 14:01:59,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:02:00,192 INFO L124 PetriNetUnfolderBase]: 2387/4834 cut-off events. [2024-11-19 14:02:00,193 INFO L125 PetriNetUnfolderBase]: For 177/177 co-relation queries the response was YES. [2024-11-19 14:02:00,200 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8738 conditions, 4834 events. 2387/4834 cut-off events. For 177/177 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 31467 event pairs, 1176 based on Foata normal form. 6/4051 useless extension candidates. Maximal degree in co-relation 8698. Up to 3783 conditions per place. [2024-11-19 14:02:00,218 INFO L140 encePairwiseOnDemand]: 94/100 looper letters, 66 selfloop transitions, 3 changer transitions 0/101 dead transitions. [2024-11-19 14:02:00,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 101 transitions, 392 flow [2024-11-19 14:02:00,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 14:02:00,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-19 14:02:00,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 203 transitions. [2024-11-19 14:02:00,219 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5075 [2024-11-19 14:02:00,219 INFO L175 Difference]: Start difference. First operand has 96 places, 92 transitions, 236 flow. Second operand 4 states and 203 transitions. [2024-11-19 14:02:00,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 101 transitions, 392 flow [2024-11-19 14:02:00,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 101 transitions, 388 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-19 14:02:00,222 INFO L231 Difference]: Finished difference. Result has 96 places, 90 transitions, 238 flow [2024-11-19 14:02:00,222 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=228, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=238, PETRI_PLACES=96, PETRI_TRANSITIONS=90} [2024-11-19 14:02:00,223 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 9 predicate places. [2024-11-19 14:02:00,223 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 90 transitions, 238 flow [2024-11-19 14:02:00,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2024-11-19 14:02:00,223 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:02:00,223 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:02:00,223 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 14:02:00,224 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-19 14:02:00,224 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:02:00,224 INFO L85 PathProgramCache]: Analyzing trace with hash -540607332, now seen corresponding path program 1 times [2024-11-19 14:02:00,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:02:00,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796222026] [2024-11-19 14:02:00,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:02:00,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:02:00,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:02:00,733 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 14:02:00,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:02:00,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796222026] [2024-11-19 14:02:00,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796222026] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:02:00,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1847340206] [2024-11-19 14:02:00,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:02:00,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:02:00,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:02:00,736 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) [2024-11-19 14:02:00,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 14:02:01,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:02:01,344 INFO L255 TraceCheckSpWp]: Trace formula consists of 3882 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 14:02:01,346 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:02:01,372 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 14:02:01,372 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:02:01,434 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 14:02:01,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1847340206] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:02:01,435 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:02:01,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-19 14:02:01,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554882133] [2024-11-19 14:02:01,435 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:02:01,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-19 14:02:01,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:02:01,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-19 14:02:01,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-19 14:02:01,450 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 100 [2024-11-19 14:02:01,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 90 transitions, 238 flow. Second operand has 18 states, 18 states have (on average 36.22222222222222) internal successors, (652), 18 states have internal predecessors, (652), 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) [2024-11-19 14:02:01,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:02:01,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 100 [2024-11-19 14:02:01,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:02:02,034 INFO L124 PetriNetUnfolderBase]: 2382/4826 cut-off events. [2024-11-19 14:02:02,035 INFO L125 PetriNetUnfolderBase]: For 212/212 co-relation queries the response was YES. [2024-11-19 14:02:02,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8758 conditions, 4826 events. 2382/4826 cut-off events. For 212/212 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 31378 event pairs, 2231 based on Foata normal form. 4/4045 useless extension candidates. Maximal degree in co-relation 8682. Up to 3784 conditions per place. [2024-11-19 14:02:02,052 INFO L140 encePairwiseOnDemand]: 96/100 looper letters, 50 selfloop transitions, 15 changer transitions 0/98 dead transitions. [2024-11-19 14:02:02,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 98 transitions, 416 flow [2024-11-19 14:02:02,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-19 14:02:02,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-19 14:02:02,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 594 transitions. [2024-11-19 14:02:02,055 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.396 [2024-11-19 14:02:02,055 INFO L175 Difference]: Start difference. First operand has 96 places, 90 transitions, 238 flow. Second operand 15 states and 594 transitions. [2024-11-19 14:02:02,055 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 98 transitions, 416 flow [2024-11-19 14:02:02,056 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 98 transitions, 410 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-19 14:02:02,057 INFO L231 Difference]: Finished difference. Result has 111 places, 98 transitions, 329 flow [2024-11-19 14:02:02,058 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=329, PETRI_PLACES=111, PETRI_TRANSITIONS=98} [2024-11-19 14:02:02,058 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 24 predicate places. [2024-11-19 14:02:02,058 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 98 transitions, 329 flow [2024-11-19 14:02:02,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 36.22222222222222) internal successors, (652), 18 states have internal predecessors, (652), 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) [2024-11-19 14:02:02,059 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:02:02,059 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 7, 7, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:02:02,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 14:02:02,259 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:02:02,260 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-19 14:02:02,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:02:02,260 INFO L85 PathProgramCache]: Analyzing trace with hash -954919396, now seen corresponding path program 2 times [2024-11-19 14:02:02,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:02:02,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568283927] [2024-11-19 14:02:02,261 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:02:02,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:02:02,393 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 14:02:02,394 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:02:03,261 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 14:02:03,261 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:02:03,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568283927] [2024-11-19 14:02:03,262 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568283927] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:02:03,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486547718] [2024-11-19 14:02:03,262 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 14:02:03,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:02:03,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:02:03,264 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) [2024-11-19 14:02:03,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 14:02:03,741 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-19 14:02:03,741 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:02:03,755 INFO L255 TraceCheckSpWp]: Trace formula consists of 4102 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-19 14:02:03,759 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 14:02:03,801 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 14:02:03,801 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 14:02:04,017 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 14:02:04,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486547718] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 14:02:04,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 14:02:04,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 33 [2024-11-19 14:02:04,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997019679] [2024-11-19 14:02:04,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 14:02:04,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-19 14:02:04,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:02:04,021 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-19 14:02:04,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-19 14:02:04,045 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 100 [2024-11-19 14:02:04,046 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 98 transitions, 329 flow. Second operand has 34 states, 34 states have (on average 36.11764705882353) internal successors, (1228), 34 states have internal predecessors, (1228), 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) [2024-11-19 14:02:04,047 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:02:04,047 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 100 [2024-11-19 14:02:04,047 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-19 14:02:04,862 INFO L124 PetriNetUnfolderBase]: 2382/4850 cut-off events. [2024-11-19 14:02:04,862 INFO L125 PetriNetUnfolderBase]: For 367/367 co-relation queries the response was YES. [2024-11-19 14:02:04,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8874 conditions, 4850 events. 2382/4850 cut-off events. For 367/367 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 31365 event pairs, 2231 based on Foata normal form. 8/4073 useless extension candidates. Maximal degree in co-relation 8678. Up to 3784 conditions per place. [2024-11-19 14:02:04,882 INFO L140 encePairwiseOnDemand]: 96/100 looper letters, 50 selfloop transitions, 31 changer transitions 0/114 dead transitions. [2024-11-19 14:02:04,882 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 114 transitions, 635 flow [2024-11-19 14:02:04,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-19 14:02:04,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-11-19 14:02:04,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1174 transitions. [2024-11-19 14:02:04,885 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.37870967741935485 [2024-11-19 14:02:04,885 INFO L175 Difference]: Start difference. First operand has 111 places, 98 transitions, 329 flow. Second operand 31 states and 1174 transitions. [2024-11-19 14:02:04,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 114 transitions, 635 flow [2024-11-19 14:02:04,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 114 transitions, 625 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-19 14:02:04,889 INFO L231 Difference]: Finished difference. Result has 145 places, 114 transitions, 560 flow [2024-11-19 14:02:04,889 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=100, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=560, PETRI_PLACES=145, PETRI_TRANSITIONS=114} [2024-11-19 14:02:04,890 INFO L277 CegarLoopForPetriNet]: 87 programPoint places, 58 predicate places. [2024-11-19 14:02:04,890 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 114 transitions, 560 flow [2024-11-19 14:02:04,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 36.11764705882353) internal successors, (1228), 34 states have internal predecessors, (1228), 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) [2024-11-19 14:02:04,891 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:02:04,891 INFO L204 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:02:04,913 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 14:02:05,091 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 [2024-11-19 14:02:05,092 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-19 14:02:05,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:02:05,092 INFO L85 PathProgramCache]: Analyzing trace with hash 1669499164, now seen corresponding path program 3 times [2024-11-19 14:02:05,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:02:05,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201815448] [2024-11-19 14:02:05,093 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 14:02:05,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:02:06,052 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s) [2024-11-19 14:02:06,052 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 14:02:07,805 INFO L134 CoverageAnalysis]: Checked inductivity of 332 backedges. 0 proven. 330 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 14:02:07,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:02:07,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201815448] [2024-11-19 14:02:07,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201815448] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 14:02:07,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520544063] [2024-11-19 14:02:07,806 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-19 14:02:07,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 14:02:07,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:02:07,808 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) [2024-11-19 14:02:07,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process