./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 3289d67d 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.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:49:42,816 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:49:42,879 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:49:42,882 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:49:42,884 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:49:42,913 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:49:42,914 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:49:42,914 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:49:42,915 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:49:42,919 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:49:42,919 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:49:42,920 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:49:42,920 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:49:42,922 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:49:42,922 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:49:42,922 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:49:42,924 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:49:42,924 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:49:42,924 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:49:42,925 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:49:42,925 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:49:42,925 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:49:42,926 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:49:42,926 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:49:42,926 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:49:42,926 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:49:42,927 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:49:42,927 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:49:42,927 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:49:42,927 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:49:42,928 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:49:42,928 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:49:42,928 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:49:42,929 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:49:42,929 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:49:42,930 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:49:42,930 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:49:42,930 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:49:42,931 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:49:42,931 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:49:42,931 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:49:42,932 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:49:42,932 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:49:42,932 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:49:42,932 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4e7050d36e2131966739d0040816e49ede1f1e8b3b668f65d41876950193b1d8 [2024-11-17 07:49:43,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:49:43,245 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:49:43,247 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:49:43,248 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:49:43,248 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:49:43,249 INFO L431 ainManager$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 [2024-11-17 07:49:44,707 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:49:45,013 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:49:45,015 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_86-lists_racing.i [2024-11-17 07:49:45,035 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/404aad77d/89298c22a73840c0aebfb81eed0594f2/FLAGb66ce6109 [2024-11-17 07:49:45,288 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/404aad77d/89298c22a73840c0aebfb81eed0594f2 [2024-11-17 07:49:45,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:49:45,292 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:49:45,293 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:49:45,293 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:49:45,298 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:49:45,299 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:49:45" (1/1) ... [2024-11-17 07:49:45,299 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a6ccdd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:45, skipping insertion in model container [2024-11-17 07:49:45,299 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:49:45" (1/1) ... [2024-11-17 07:49:45,352 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:49:45,874 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:49:46,108 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:49:46,158 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:49:46,275 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:49:46,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:46 WrapperNode [2024-11-17 07:49:46,275 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:49:46,277 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:49:46,277 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:49:46,277 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:49:46,284 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:46" (1/1) ... [2024-11-17 07:49:46,350 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:46" (1/1) ... [2024-11-17 07:49:46,450 INFO L138 Inliner]: procedures = 280, calls = 1606, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 1799 [2024-11-17 07:49:46,451 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:49:46,452 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:49:46,452 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:49:46,452 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:49:46,464 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:46" (1/1) ... [2024-11-17 07:49:46,465 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:46" (1/1) ... [2024-11-17 07:49:46,487 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:46" (1/1) ... [2024-11-17 07:49:46,532 INFO L175 MemorySlicer]: Split 1569 memory accesses to 8 slices as follows [2, 2, 5, 14, 259, 5, 1280, 2]. 82 percent of accesses are in the largest equivalence class. The 1548 initializations are split as follows [2, 0, 5, 0, 256, 5, 1280, 0]. The 11 writes are split as follows [0, 1, 0, 8, 1, 0, 0, 1]. [2024-11-17 07:49:46,533 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:46" (1/1) ... [2024-11-17 07:49:46,533 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:46" (1/1) ... [2024-11-17 07:49:46,573 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:46" (1/1) ... [2024-11-17 07:49:46,576 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:46" (1/1) ... [2024-11-17 07:49:46,586 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:46" (1/1) ... [2024-11-17 07:49:46,598 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:46" (1/1) ... [2024-11-17 07:49:46,614 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:49:46,617 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:49:46,617 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:49:46,617 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:49:46,619 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:46" (1/1) ... [2024-11-17 07:49:46,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:49:46,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:49:46,656 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) [2024-11-17 07:49:46,660 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 [2024-11-17 07:49:46,709 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 07:49:46,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-17 07:49:46,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-17 07:49:46,709 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-17 07:49:46,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-17 07:49:46,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-17 07:49:46,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-17 07:49:46,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-17 07:49:46,710 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-17 07:49:46,710 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-17 07:49:46,710 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-17 07:49:46,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 07:49:46,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-17 07:49:46,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-17 07:49:46,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-17 07:49:46,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-17 07:49:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-17 07:49:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-17 07:49:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-17 07:49:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-17 07:49:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-17 07:49:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 07:49:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 07:49:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 07:49:46,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-17 07:49:46,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-17 07:49:46,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-17 07:49:46,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-17 07:49:46,714 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-17 07:49:46,714 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-17 07:49:46,714 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-17 07:49:46,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 07:49:46,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 07:49:46,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-17 07:49:46,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-17 07:49:46,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-17 07:49:46,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-17 07:49:46,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-17 07:49:46,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-17 07:49:46,716 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-17 07:49:46,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-17 07:49:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:49:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-17 07:49:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-17 07:49:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-17 07:49:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-17 07:49:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-17 07:49:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-17 07:49:46,717 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-17 07:49:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-17 07:49:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:49:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 07:49:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 07:49:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-17 07:49:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-17 07:49:46,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-17 07:49:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-17 07:49:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-17 07:49:46,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:49:46,719 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:49:46,721 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:49:46,960 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:49:46,963 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:49:48,951 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2024-11-17 07:49:48,951 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053-1: SUMMARY for call ULTIMATE.dealloc(main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset); srcloc: null [2024-11-17 07:49:48,952 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1054: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2024-11-17 07:49:48,952 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1054-1: SUMMARY for call ULTIMATE.dealloc(main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset); srcloc: null [2024-11-17 07:49:48,954 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:49:48,954 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:50:29,137 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:50:29,137 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:50:29,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:50:29 BoogieIcfgContainer [2024-11-17 07:50:29,137 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:50:29,140 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:50:29,140 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:50:29,144 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:50:29,144 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:49:45" (1/3) ... [2024-11-17 07:50:29,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1f4a75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:50:29, skipping insertion in model container [2024-11-17 07:50:29,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:46" (2/3) ... [2024-11-17 07:50:29,146 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c1f4a75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:50:29, skipping insertion in model container [2024-11-17 07:50:29,146 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:50:29" (3/3) ... [2024-11-17 07:50:29,149 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_86-lists_racing.i [2024-11-17 07:50:29,166 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:50:29,167 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-17 07:50:29,167 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:50:29,302 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-17 07:50:29,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 118 transitions, 256 flow [2024-11-17 07:50:29,495 INFO L124 PetriNetUnfolderBase]: 50/254 cut-off events. [2024-11-17 07:50:29,495 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-17 07:50:29,501 INFO L83 FinitePrefix]: Finished finitePrefix Result has 271 conditions, 254 events. 50/254 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 1050 event pairs, 0 based on Foata normal form. 0/170 useless extension candidates. Maximal degree in co-relation 123. Up to 8 conditions per place. [2024-11-17 07:50:29,501 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 118 transitions, 256 flow [2024-11-17 07:50:29,506 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 118 transitions, 256 flow [2024-11-17 07:50:29,516 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:50:29,525 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;@70c9bc77, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:50:29,526 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-11-17 07:50:29,596 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:50:29,597 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events. [2024-11-17 07:50:29,597 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:50:29,598 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:29,598 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 07:50:29,599 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-17 07:50:29,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:29,605 INFO L85 PathProgramCache]: Analyzing trace with hash 115670327, now seen corresponding path program 1 times [2024-11-17 07:50:29,614 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:29,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1960166926] [2024-11-17 07:50:29,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:29,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:30,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:30,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:50:30,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:30,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1960166926] [2024-11-17 07:50:30,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1960166926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:50:30,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:50:30,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:50:30,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782177546] [2024-11-17 07:50:30,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:50:30,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:50:30,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:30,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:50:30,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:50:30,686 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 118 [2024-11-17 07:50:30,692 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 118 transitions, 256 flow. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 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) [2024-11-17 07:50:30,692 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:30,692 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 118 [2024-11-17 07:50:30,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:31,937 INFO L124 PetriNetUnfolderBase]: 2462/5291 cut-off events. [2024-11-17 07:50:31,937 INFO L125 PetriNetUnfolderBase]: For 159/159 co-relation queries the response was YES. [2024-11-17 07:50:31,958 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9322 conditions, 5291 events. 2462/5291 cut-off events. For 159/159 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 41854 event pairs, 2279 based on Foata normal form. 1078/6027 useless extension candidates. Maximal degree in co-relation 7817. Up to 3944 conditions per place. [2024-11-17 07:50:31,988 INFO L140 encePairwiseOnDemand]: 96/118 looper letters, 54 selfloop transitions, 3 changer transitions 0/104 dead transitions. [2024-11-17 07:50:31,989 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 104 transitions, 342 flow [2024-11-17 07:50:31,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:50:31,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:50:32,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 265 transitions. [2024-11-17 07:50:32,003 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5614406779661016 [2024-11-17 07:50:32,006 INFO L175 Difference]: Start difference. First operand has 100 places, 118 transitions, 256 flow. Second operand 4 states and 265 transitions. [2024-11-17 07:50:32,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 104 transitions, 342 flow [2024-11-17 07:50:32,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 104 transitions, 342 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:50:32,019 INFO L231 Difference]: Finished difference. Result has 105 places, 104 transitions, 248 flow [2024-11-17 07:50:32,021 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=248, PETRI_PLACES=105, PETRI_TRANSITIONS=104} [2024-11-17 07:50:32,027 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 5 predicate places. [2024-11-17 07:50:32,027 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 104 transitions, 248 flow [2024-11-17 07:50:32,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 4 states have internal predecessors, (191), 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) [2024-11-17 07:50:32,028 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:32,028 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-17 07:50:32,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:50:32,029 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-17 07:50:32,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:32,030 INFO L85 PathProgramCache]: Analyzing trace with hash -338578293, now seen corresponding path program 1 times [2024-11-17 07:50:32,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:32,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028342503] [2024-11-17 07:50:32,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:32,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:32,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:32,731 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:50:32,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:32,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028342503] [2024-11-17 07:50:32,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028342503] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:50:32,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1674693296] [2024-11-17 07:50:32,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:32,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:50:32,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:50:32,738 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) [2024-11-17 07:50:32,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 07:50:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:33,401 INFO L255 TraceCheckSpWp]: Trace formula consists of 3764 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:50:33,406 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:50:33,457 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:50:33,457 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:50:33,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1674693296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:50:33,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:50:33,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-17 07:50:33,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620455542] [2024-11-17 07:50:33,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:50:33,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:50:33,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:33,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:50:33,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:50:33,471 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 118 [2024-11-17 07:50:33,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 104 transitions, 248 flow. Second operand has 6 states, 6 states have (on average 47.833333333333336) internal successors, (287), 6 states have internal predecessors, (287), 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) [2024-11-17 07:50:33,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:33,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 118 [2024-11-17 07:50:33,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:34,443 INFO L124 PetriNetUnfolderBase]: 2462/5290 cut-off events. [2024-11-17 07:50:34,443 INFO L125 PetriNetUnfolderBase]: For 165/165 co-relation queries the response was YES. [2024-11-17 07:50:34,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9332 conditions, 5290 events. 2462/5290 cut-off events. For 165/165 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 42033 event pairs, 2279 based on Foata normal form. 1/4949 useless extension candidates. Maximal degree in co-relation 9312. Up to 3938 conditions per place. [2024-11-17 07:50:34,472 INFO L140 encePairwiseOnDemand]: 113/118 looper letters, 50 selfloop transitions, 6 changer transitions 0/103 dead transitions. [2024-11-17 07:50:34,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 103 transitions, 356 flow [2024-11-17 07:50:34,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:50:34,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:50:34,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 339 transitions. [2024-11-17 07:50:34,477 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4788135593220339 [2024-11-17 07:50:34,478 INFO L175 Difference]: Start difference. First operand has 105 places, 104 transitions, 248 flow. Second operand 6 states and 339 transitions. [2024-11-17 07:50:34,478 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 103 transitions, 356 flow [2024-11-17 07:50:34,479 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 103 transitions, 354 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:50:34,483 INFO L231 Difference]: Finished difference. Result has 108 places, 103 transitions, 254 flow [2024-11-17 07:50:34,483 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=254, PETRI_PLACES=108, PETRI_TRANSITIONS=103} [2024-11-17 07:50:34,484 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 8 predicate places. [2024-11-17 07:50:34,484 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 103 transitions, 254 flow [2024-11-17 07:50:34,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 47.833333333333336) internal successors, (287), 6 states have internal predecessors, (287), 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) [2024-11-17 07:50:34,485 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:34,485 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-17 07:50:34,511 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-17 07:50:34,685 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 [2024-11-17 07:50:34,686 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-17 07:50:34,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:34,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1905988858, now seen corresponding path program 1 times [2024-11-17 07:50:34,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:34,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1315172462] [2024-11-17 07:50:34,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:34,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:34,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:35,053 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 07:50:35,053 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:35,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1315172462] [2024-11-17 07:50:35,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1315172462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:50:35,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:50:35,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:50:35,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936926352] [2024-11-17 07:50:35,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:50:35,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:50:35,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:35,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:50:35,058 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:50:35,063 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 118 [2024-11-17 07:50:35,064 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 103 transitions, 254 flow. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2024-11-17 07:50:35,064 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:35,064 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 118 [2024-11-17 07:50:35,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:35,733 INFO L124 PetriNetUnfolderBase]: 2462/5289 cut-off events. [2024-11-17 07:50:35,733 INFO L125 PetriNetUnfolderBase]: For 176/176 co-relation queries the response was YES. [2024-11-17 07:50:35,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9333 conditions, 5289 events. 2462/5289 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 41928 event pairs, 2279 based on Foata normal form. 1/4950 useless extension candidates. Maximal degree in co-relation 9307. Up to 3941 conditions per place. [2024-11-17 07:50:35,775 INFO L140 encePairwiseOnDemand]: 115/118 looper letters, 50 selfloop transitions, 4 changer transitions 0/102 dead transitions. [2024-11-17 07:50:35,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 102 transitions, 358 flow [2024-11-17 07:50:35,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:50:35,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:50:35,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2024-11-17 07:50:35,778 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.556497175141243 [2024-11-17 07:50:35,778 INFO L175 Difference]: Start difference. First operand has 108 places, 103 transitions, 254 flow. Second operand 3 states and 197 transitions. [2024-11-17 07:50:35,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 102 transitions, 358 flow [2024-11-17 07:50:35,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 102 transitions, 348 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-17 07:50:35,785 INFO L231 Difference]: Finished difference. Result has 105 places, 102 transitions, 248 flow [2024-11-17 07:50:35,785 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=248, PETRI_PLACES=105, PETRI_TRANSITIONS=102} [2024-11-17 07:50:35,786 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 5 predicate places. [2024-11-17 07:50:35,786 INFO L471 AbstractCegarLoop]: Abstraction has has 105 places, 102 transitions, 248 flow [2024-11-17 07:50:35,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 3 states have internal predecessors, (149), 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) [2024-11-17 07:50:35,787 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:35,787 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:50:35,787 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 07:50:35,788 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-17 07:50:35,788 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:35,788 INFO L85 PathProgramCache]: Analyzing trace with hash -120987447, now seen corresponding path program 1 times [2024-11-17 07:50:35,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:35,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198184116] [2024-11-17 07:50:35,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:35,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:35,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:36,253 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:50:36,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:36,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198184116] [2024-11-17 07:50:36,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198184116] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:50:36,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [713461588] [2024-11-17 07:50:36,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:36,255 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:50:36,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:50:36,257 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) [2024-11-17 07:50:36,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 07:50:37,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:37,025 INFO L255 TraceCheckSpWp]: Trace formula consists of 3754 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 07:50:37,029 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:50:37,057 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:50:37,058 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:50:37,101 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:50:37,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [713461588] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:50:37,102 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:50:37,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-17 07:50:37,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461941748] [2024-11-17 07:50:37,103 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:50:37,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 07:50:37,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:37,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 07:50:37,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-17 07:50:37,119 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 118 [2024-11-17 07:50:37,121 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 102 transitions, 248 flow. Second operand has 10 states, 10 states have (on average 48.4) internal successors, (484), 10 states have internal predecessors, (484), 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) [2024-11-17 07:50:37,121 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:37,121 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 118 [2024-11-17 07:50:37,121 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:37,878 INFO L124 PetriNetUnfolderBase]: 2462/5295 cut-off events. [2024-11-17 07:50:37,879 INFO L125 PetriNetUnfolderBase]: For 192/192 co-relation queries the response was YES. [2024-11-17 07:50:37,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9349 conditions, 5295 events. 2462/5295 cut-off events. For 192/192 co-relation queries the response was YES. Maximal size of possible extension queue 190. Compared 41956 event pairs, 2279 based on Foata normal form. 2/4957 useless extension candidates. Maximal degree in co-relation 9302. Up to 3940 conditions per place. [2024-11-17 07:50:37,918 INFO L140 encePairwiseOnDemand]: 114/118 looper letters, 51 selfloop transitions, 7 changer transitions 0/105 dead transitions. [2024-11-17 07:50:37,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 105 transitions, 386 flow [2024-11-17 07:50:37,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 07:50:37,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 07:50:37,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 389 transitions. [2024-11-17 07:50:37,920 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47094430992736075 [2024-11-17 07:50:37,920 INFO L175 Difference]: Start difference. First operand has 105 places, 102 transitions, 248 flow. Second operand 7 states and 389 transitions. [2024-11-17 07:50:37,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 105 transitions, 386 flow [2024-11-17 07:50:37,924 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 105 transitions, 372 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:50:37,927 INFO L231 Difference]: Finished difference. Result has 111 places, 105 transitions, 281 flow [2024-11-17 07:50:37,927 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=281, PETRI_PLACES=111, PETRI_TRANSITIONS=105} [2024-11-17 07:50:37,928 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 11 predicate places. [2024-11-17 07:50:37,928 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 105 transitions, 281 flow [2024-11-17 07:50:37,928 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 48.4) internal successors, (484), 10 states have internal predecessors, (484), 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) [2024-11-17 07:50:37,928 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:37,929 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:50:37,954 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 07:50:38,129 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 [2024-11-17 07:50:38,130 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-17 07:50:38,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:38,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1479608031, now seen corresponding path program 2 times [2024-11-17 07:50:38,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:38,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711962755] [2024-11-17 07:50:38,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:38,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:38,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:38,559 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-17 07:50:38,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:38,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711962755] [2024-11-17 07:50:38,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711962755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:50:38,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:50:38,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:50:38,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303819164] [2024-11-17 07:50:38,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:50:38,560 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:50:38,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:38,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:50:38,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:50:38,573 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 118 [2024-11-17 07:50:38,574 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 105 transitions, 281 flow. Second operand has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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) [2024-11-17 07:50:38,574 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:38,574 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 118 [2024-11-17 07:50:38,574 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:39,332 INFO L124 PetriNetUnfolderBase]: 2392/5149 cut-off events. [2024-11-17 07:50:39,332 INFO L125 PetriNetUnfolderBase]: For 206/206 co-relation queries the response was YES. [2024-11-17 07:50:39,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9074 conditions, 5149 events. 2392/5149 cut-off events. For 206/206 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 39811 event pairs, 1176 based on Foata normal form. 6/4844 useless extension candidates. Maximal degree in co-relation 9022. Up to 3794 conditions per place. [2024-11-17 07:50:39,361 INFO L140 encePairwiseOnDemand]: 112/118 looper letters, 67 selfloop transitions, 3 changer transitions 0/114 dead transitions. [2024-11-17 07:50:39,361 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 114 transitions, 439 flow [2024-11-17 07:50:39,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:50:39,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:50:39,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 252 transitions. [2024-11-17 07:50:39,363 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5338983050847458 [2024-11-17 07:50:39,363 INFO L175 Difference]: Start difference. First operand has 111 places, 105 transitions, 281 flow. Second operand 4 states and 252 transitions. [2024-11-17 07:50:39,363 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 114 transitions, 439 flow [2024-11-17 07:50:39,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 114 transitions, 431 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-17 07:50:39,369 INFO L231 Difference]: Finished difference. Result has 111 places, 103 transitions, 279 flow [2024-11-17 07:50:39,370 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=269, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=279, PETRI_PLACES=111, PETRI_TRANSITIONS=103} [2024-11-17 07:50:39,371 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 11 predicate places. [2024-11-17 07:50:39,372 INFO L471 AbstractCegarLoop]: Abstraction has has 111 places, 103 transitions, 279 flow [2024-11-17 07:50:39,372 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.0) internal successors, (192), 4 states have internal predecessors, (192), 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) [2024-11-17 07:50:39,372 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:39,373 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:50:39,373 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 07:50:39,373 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-17 07:50:39,373 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:39,373 INFO L85 PathProgramCache]: Analyzing trace with hash -836222638, now seen corresponding path program 1 times [2024-11-17 07:50:39,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:39,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084325275] [2024-11-17 07:50:39,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:39,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:39,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:40,001 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:50:40,002 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:40,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084325275] [2024-11-17 07:50:40,003 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084325275] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:50:40,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2025465220] [2024-11-17 07:50:40,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:40,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:50:40,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:50:40,006 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) [2024-11-17 07:50:40,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 07:50:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:40,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 3888 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 07:50:40,605 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:50:40,640 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:50:40,641 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:50:40,722 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:50:40,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2025465220] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:50:40,722 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:50:40,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-17 07:50:40,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195229020] [2024-11-17 07:50:40,723 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:50:40,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-17 07:50:40,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:40,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-17 07:50:40,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-17 07:50:40,738 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 118 [2024-11-17 07:50:40,740 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 103 transitions, 279 flow. Second operand has 18 states, 18 states have (on average 48.27777777777778) internal successors, (869), 18 states have internal predecessors, (869), 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) [2024-11-17 07:50:40,740 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:40,740 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 118 [2024-11-17 07:50:40,740 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:41,560 INFO L124 PetriNetUnfolderBase]: 2382/5100 cut-off events. [2024-11-17 07:50:41,561 INFO L125 PetriNetUnfolderBase]: For 287/287 co-relation queries the response was YES. [2024-11-17 07:50:41,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9044 conditions, 5100 events. 2382/5100 cut-off events. For 287/287 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 39517 event pairs, 2231 based on Foata normal form. 4/4788 useless extension candidates. Maximal degree in co-relation 8946. Up to 3785 conditions per place. [2024-11-17 07:50:41,589 INFO L140 encePairwiseOnDemand]: 114/118 looper letters, 51 selfloop transitions, 15 changer transitions 0/111 dead transitions. [2024-11-17 07:50:41,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 111 transitions, 475 flow [2024-11-17 07:50:41,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-17 07:50:41,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-17 07:50:41,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 775 transitions. [2024-11-17 07:50:41,595 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4378531073446328 [2024-11-17 07:50:41,595 INFO L175 Difference]: Start difference. First operand has 111 places, 103 transitions, 279 flow. Second operand 15 states and 775 transitions. [2024-11-17 07:50:41,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 111 transitions, 475 flow [2024-11-17 07:50:41,597 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 111 transitions, 469 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:50:41,598 INFO L231 Difference]: Finished difference. Result has 126 places, 111 transitions, 386 flow [2024-11-17 07:50:41,599 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=386, PETRI_PLACES=126, PETRI_TRANSITIONS=111} [2024-11-17 07:50:41,599 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 26 predicate places. [2024-11-17 07:50:41,599 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 111 transitions, 386 flow [2024-11-17 07:50:41,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 48.27777777777778) internal successors, (869), 18 states have internal predecessors, (869), 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) [2024-11-17 07:50:41,600 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:41,600 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:50:41,626 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-17 07:50:41,801 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 [2024-11-17 07:50:41,801 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-17 07:50:41,801 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:41,803 INFO L85 PathProgramCache]: Analyzing trace with hash 158405122, now seen corresponding path program 2 times [2024-11-17 07:50:41,803 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:41,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433239234] [2024-11-17 07:50:41,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:41,804 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:41,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:42,956 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:50:42,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:42,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433239234] [2024-11-17 07:50:42,958 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433239234] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:50:42,958 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098985141] [2024-11-17 07:50:42,958 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:50:42,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:50:42,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:50:42,960 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) [2024-11-17 07:50:42,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-17 07:50:43,615 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 07:50:43,615 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:50:43,629 INFO L255 TraceCheckSpWp]: Trace formula consists of 4112 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-17 07:50:43,633 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:50:43,722 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:50:43,723 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:50:43,997 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:50:43,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098985141] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:50:43,998 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:50:43,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 33 [2024-11-17 07:50:43,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1499107765] [2024-11-17 07:50:43,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:50:43,998 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-17 07:50:43,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:44,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-17 07:50:44,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-17 07:50:44,037 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 118 [2024-11-17 07:50:44,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 111 transitions, 386 flow. Second operand has 34 states, 34 states have (on average 48.14705882352941) internal successors, (1637), 34 states have internal predecessors, (1637), 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) [2024-11-17 07:50:44,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:44,039 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 118 [2024-11-17 07:50:44,039 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:45,197 INFO L124 PetriNetUnfolderBase]: 2382/5132 cut-off events. [2024-11-17 07:50:45,197 INFO L125 PetriNetUnfolderBase]: For 794/794 co-relation queries the response was YES. [2024-11-17 07:50:45,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9184 conditions, 5132 events. 2382/5132 cut-off events. For 794/794 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 39527 event pairs, 2231 based on Foata normal form. 8/4824 useless extension candidates. Maximal degree in co-relation 8942. Up to 3785 conditions per place. [2024-11-17 07:50:45,228 INFO L140 encePairwiseOnDemand]: 114/118 looper letters, 51 selfloop transitions, 31 changer transitions 0/127 dead transitions. [2024-11-17 07:50:45,228 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 127 transitions, 726 flow [2024-11-17 07:50:45,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-17 07:50:45,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-11-17 07:50:45,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1547 transitions. [2024-11-17 07:50:45,234 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4229086932750137 [2024-11-17 07:50:45,234 INFO L175 Difference]: Start difference. First operand has 126 places, 111 transitions, 386 flow. Second operand 31 states and 1547 transitions. [2024-11-17 07:50:45,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 127 transitions, 726 flow [2024-11-17 07:50:45,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 127 transitions, 708 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-17 07:50:45,239 INFO L231 Difference]: Finished difference. Result has 160 places, 127 transitions, 641 flow [2024-11-17 07:50:45,239 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=118, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=641, PETRI_PLACES=160, PETRI_TRANSITIONS=127} [2024-11-17 07:50:45,240 INFO L277 CegarLoopForPetriNet]: 100 programPoint places, 60 predicate places. [2024-11-17 07:50:45,240 INFO L471 AbstractCegarLoop]: Abstraction has has 160 places, 127 transitions, 641 flow [2024-11-17 07:50:45,241 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 48.14705882352941) internal successors, (1637), 34 states have internal predecessors, (1637), 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) [2024-11-17 07:50:45,241 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:45,242 INFO L204 CegarLoopForPetriNet]: trace histogram [16, 15, 15, 15, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:50:45,269 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-17 07:50:45,442 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 [2024-11-17 07:50:45,443 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-11-17 07:50:45,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:45,446 INFO L85 PathProgramCache]: Analyzing trace with hash 373068642, now seen corresponding path program 3 times [2024-11-17 07:50:45,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:45,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915261778] [2024-11-17 07:50:45,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:45,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:45,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:47,577 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 0 proven. 450 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:50:47,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:47,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915261778] [2024-11-17 07:50:47,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915261778] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:50:47,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514799362] [2024-11-17 07:50:47,582 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-17 07:50:47,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:50:47,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:50:47,584 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) [2024-11-17 07:50:47,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process