./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d 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_04-munge_racefree.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 50de8acec85b0b2508f1f33521d9ab6717fa1b5141d6b9e2d08fcb4af894112b --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 15:04:22,400 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:04:22,492 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 15:04:22,499 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:04:22,501 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:04:22,530 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:04:22,531 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:04:22,531 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:04:22,532 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:04:22,532 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:04:22,533 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 15:04:22,533 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 15:04:22,534 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:04:22,534 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:04:22,534 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:04:22,535 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:04:22,535 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 15:04:22,535 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 15:04:22,536 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:04:22,536 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 15:04:22,536 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:04:22,537 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 15:04:22,537 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 15:04:22,538 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 15:04:22,539 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:04:22,539 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 15:04:22,539 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:04:22,539 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 15:04:22,540 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:04:22,540 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:04:22,540 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:04:22,540 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:04:22,541 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 15:04:22,541 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 15:04:22,541 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:04:22,544 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:04:22,544 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 15:04:22,544 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 15:04:22,545 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:04:22,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 15:04:22,545 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 15:04:22,546 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 15:04:22,546 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 15:04:22,547 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 15:04:22,547 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50de8acec85b0b2508f1f33521d9ab6717fa1b5141d6b9e2d08fcb4af894112b [2024-11-09 15:04:22,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:04:22,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:04:22,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:04:22,820 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:04:22,820 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:04:22,822 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i [2024-11-09 15:04:24,323 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:04:24,562 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:04:24,565 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_04-munge_racefree.i [2024-11-09 15:04:24,583 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf2fe6dcf/3bac8664bcba47e885b9c169f6be2fa7/FLAGbc9c65cf9 [2024-11-09 15:04:24,598 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cf2fe6dcf/3bac8664bcba47e885b9c169f6be2fa7 [2024-11-09 15:04:24,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:04:24,601 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:04:24,603 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:04:24,603 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:04:24,607 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:04:24,607 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:04:24" (1/1) ... [2024-11-09 15:04:24,608 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36086572 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:04:24, skipping insertion in model container [2024-11-09 15:04:24,608 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:04:24" (1/1) ... [2024-11-09 15:04:24,645 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:04:25,036 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:04:25,060 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:04:25,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:04:25,155 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:04:25,156 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:04:25 WrapperNode [2024-11-09 15:04:25,156 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:04:25,157 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:04:25,157 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:04:25,157 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:04:25,164 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:04:25" (1/1) ... [2024-11-09 15:04:25,182 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:04:25" (1/1) ... [2024-11-09 15:04:25,214 INFO L138 Inliner]: procedures = 173, calls = 42, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 290 [2024-11-09 15:04:25,215 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:04:25,215 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:04:25,215 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:04:25,216 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:04:25,224 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:04:25" (1/1) ... [2024-11-09 15:04:25,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:04:25" (1/1) ... [2024-11-09 15:04:25,228 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:04:25" (1/1) ... [2024-11-09 15:04:25,248 INFO L175 MemorySlicer]: Split 16 memory accesses to 5 slices as follows [2, 5, 5, 2, 2]. 31 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0, 0]. The 2 writes are split as follows [0, 0, 0, 1, 1]. [2024-11-09 15:04:25,249 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:04:25" (1/1) ... [2024-11-09 15:04:25,249 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:04:25" (1/1) ... [2024-11-09 15:04:25,258 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:04:25" (1/1) ... [2024-11-09 15:04:25,262 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:04:25" (1/1) ... [2024-11-09 15:04:25,265 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:04:25" (1/1) ... [2024-11-09 15:04:25,266 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:04:25" (1/1) ... [2024-11-09 15:04:25,273 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:04:25,274 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:04:25,275 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:04:25,275 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:04:25,276 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:04:25" (1/1) ... [2024-11-09 15:04:25,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:04:25,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:04:25,306 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) [2024-11-09 15:04:25,309 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 [2024-11-09 15:04:25,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 15:04:25,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 15:04:25,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 15:04:25,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 15:04:25,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 15:04:25,351 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-09 15:04:25,351 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-09 15:04:25,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 15:04:25,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 15:04:25,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 15:04:25,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 15:04:25,351 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 15:04:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 15:04:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 15:04:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 15:04:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-09 15:04:25,352 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-09 15:04:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 15:04:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 15:04:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 15:04:25,352 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 15:04:25,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 15:04:25,353 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 15:04:25,353 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 15:04:25,353 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:04:25,353 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:04:25,358 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 15:04:25,491 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:04:25,492 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:04:25,907 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 15:04:25,907 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:04:26,341 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:04:26,341 INFO L316 CfgBuilder]: Removed 24 assume(true) statements. [2024-11-09 15:04:26,342 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:04:26 BoogieIcfgContainer [2024-11-09 15:04:26,342 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:04:26,344 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 15:04:26,345 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 15:04:26,348 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 15:04:26,348 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:04:24" (1/3) ... [2024-11-09 15:04:26,349 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1631c4dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:04:26, skipping insertion in model container [2024-11-09 15:04:26,349 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:04:25" (2/3) ... [2024-11-09 15:04:26,350 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1631c4dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:04:26, skipping insertion in model container [2024-11-09 15:04:26,350 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:04:26" (3/3) ... [2024-11-09 15:04:26,351 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_04-munge_racefree.i [2024-11-09 15:04:26,369 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 15:04:26,370 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-09 15:04:26,370 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 15:04:26,466 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-09 15:04:26,509 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 104 places, 125 transitions, 270 flow [2024-11-09 15:04:26,586 INFO L124 PetriNetUnfolderBase]: 41/220 cut-off events. [2024-11-09 15:04:26,586 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-09 15:04:26,593 INFO L83 FinitePrefix]: Finished finitePrefix Result has 237 conditions, 220 events. 41/220 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1050 event pairs, 0 based on Foata normal form. 0/143 useless extension candidates. Maximal degree in co-relation 130. Up to 8 conditions per place. [2024-11-09 15:04:26,594 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 125 transitions, 270 flow [2024-11-09 15:04:26,601 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 104 places, 125 transitions, 270 flow [2024-11-09 15:04:26,618 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:04:26,627 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;@1d988710, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:04:26,627 INFO L334 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2024-11-09 15:04:26,635 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:04:26,635 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-11-09 15:04:26,636 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:04:26,636 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:04:26,637 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 15:04:26,637 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-09 15:04:26,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:04:26,643 INFO L85 PathProgramCache]: Analyzing trace with hash 686898076, now seen corresponding path program 1 times [2024-11-09 15:04:26,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:04:26,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743822246] [2024-11-09 15:04:26,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:04:26,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:04:26,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:04:27,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:04:27,071 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:04:27,071 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743822246] [2024-11-09 15:04:27,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743822246] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:04:27,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:04:27,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:04:27,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053537449] [2024-11-09 15:04:27,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:04:27,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:04:27,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:04:27,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:04:27,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:04:27,133 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 47 out of 125 [2024-11-09 15:04:27,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 125 transitions, 270 flow. Second operand has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 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) [2024-11-09 15:04:27,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:04:27,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 47 of 125 [2024-11-09 15:04:27,142 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:04:28,551 INFO L124 PetriNetUnfolderBase]: 5693/11733 cut-off events. [2024-11-09 15:04:28,552 INFO L125 PetriNetUnfolderBase]: For 150/150 co-relation queries the response was YES. [2024-11-09 15:04:28,582 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20673 conditions, 11733 events. 5693/11733 cut-off events. For 150/150 co-relation queries the response was YES. Maximal size of possible extension queue 398. Compared 99668 event pairs, 2520 based on Foata normal form. 1968/11726 useless extension candidates. Maximal degree in co-relation 19825. Up to 8759 conditions per place. [2024-11-09 15:04:28,644 INFO L140 encePairwiseOnDemand]: 99/125 looper letters, 90 selfloop transitions, 3 changer transitions 0/140 dead transitions. [2024-11-09 15:04:28,645 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 140 transitions, 486 flow [2024-11-09 15:04:28,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:04:28,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:04:28,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 324 transitions. [2024-11-09 15:04:28,659 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.648 [2024-11-09 15:04:28,661 INFO L175 Difference]: Start difference. First operand has 104 places, 125 transitions, 270 flow. Second operand 4 states and 324 transitions. [2024-11-09 15:04:28,662 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 140 transitions, 486 flow [2024-11-09 15:04:28,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 140 transitions, 486 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 15:04:28,674 INFO L231 Difference]: Finished difference. Result has 106 places, 103 transitions, 236 flow [2024-11-09 15:04:28,676 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=125, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=102, 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=236, PETRI_PLACES=106, PETRI_TRANSITIONS=103} [2024-11-09 15:04:28,681 INFO L277 CegarLoopForPetriNet]: 104 programPoint places, 2 predicate places. [2024-11-09 15:04:28,682 INFO L471 AbstractCegarLoop]: Abstraction has has 106 places, 103 transitions, 236 flow [2024-11-09 15:04:28,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 48.25) internal successors, (193), 4 states have internal predecessors, (193), 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) [2024-11-09 15:04:28,682 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:04:28,683 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-09 15:04:28,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 15:04:28,683 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2024-11-09 15:04:28,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:04:28,684 INFO L85 PathProgramCache]: Analyzing trace with hash -2137852239, now seen corresponding path program 1 times [2024-11-09 15:04:28,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:04:28,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818542182] [2024-11-09 15:04:28,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:04:28,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:04:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:04:28,778 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 15:04:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 15:04:28,840 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 15:04:28,840 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 15:04:28,844 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (25 of 26 remaining) [2024-11-09 15:04:28,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 26 remaining) [2024-11-09 15:04:28,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 26 remaining) [2024-11-09 15:04:28,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 26 remaining) [2024-11-09 15:04:28,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 26 remaining) [2024-11-09 15:04:28,847 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 26 remaining) [2024-11-09 15:04:28,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 26 remaining) [2024-11-09 15:04:28,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 26 remaining) [2024-11-09 15:04:28,849 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 26 remaining) [2024-11-09 15:04:28,850 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 26 remaining) [2024-11-09 15:04:28,850 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 26 remaining) [2024-11-09 15:04:28,851 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 26 remaining) [2024-11-09 15:04:28,851 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 26 remaining) [2024-11-09 15:04:28,852 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 26 remaining) [2024-11-09 15:04:28,852 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 26 remaining) [2024-11-09 15:04:28,852 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 26 remaining) [2024-11-09 15:04:28,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 26 remaining) [2024-11-09 15:04:28,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 26 remaining) [2024-11-09 15:04:28,853 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 26 remaining) [2024-11-09 15:04:28,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 26 remaining) [2024-11-09 15:04:28,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 26 remaining) [2024-11-09 15:04:28,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 26 remaining) [2024-11-09 15:04:28,854 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 26 remaining) [2024-11-09 15:04:28,855 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 26 remaining) [2024-11-09 15:04:28,855 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 26 remaining) [2024-11-09 15:04:28,856 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t1_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 26 remaining) [2024-11-09 15:04:28,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 15:04:28,857 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-09 15:04:28,860 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 15:04:28,860 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-09 15:04:28,940 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-09 15:04:28,946 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 219 transitions, 482 flow [2024-11-09 15:04:29,066 INFO L124 PetriNetUnfolderBase]: 145/707 cut-off events. [2024-11-09 15:04:29,067 INFO L125 PetriNetUnfolderBase]: For 72/79 co-relation queries the response was YES. [2024-11-09 15:04:29,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 796 conditions, 707 events. 145/707 cut-off events. For 72/79 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 4636 event pairs, 1 based on Foata normal form. 0/467 useless extension candidates. Maximal degree in co-relation 437. Up to 32 conditions per place. [2024-11-09 15:04:29,079 INFO L82 GeneralOperation]: Start removeDead. Operand has 176 places, 219 transitions, 482 flow [2024-11-09 15:04:29,092 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 176 places, 219 transitions, 482 flow [2024-11-09 15:04:29,094 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:04:29,095 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;@1d988710, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:04:29,096 INFO L334 AbstractCegarLoop]: Starting to check reachability of 34 error locations. [2024-11-09 15:04:29,099 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:04:29,100 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-11-09 15:04:29,100 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:04:29,100 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:04:29,101 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 15:04:29,101 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 31 more)] === [2024-11-09 15:04:29,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:04:29,103 INFO L85 PathProgramCache]: Analyzing trace with hash 894066829, now seen corresponding path program 1 times [2024-11-09 15:04:29,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:04:29,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890480464] [2024-11-09 15:04:29,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:04:29,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:04:29,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:04:29,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:04:29,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:04:29,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890480464] [2024-11-09 15:04:29,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890480464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:04:29,212 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:04:29,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:04:29,213 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251764552] [2024-11-09 15:04:29,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:04:29,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:04:29,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:04:29,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:04:29,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:04:29,222 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 219 [2024-11-09 15:04:29,223 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 176 places, 219 transitions, 482 flow. Second operand has 4 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 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) [2024-11-09 15:04:29,225 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:04:29,225 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 219 [2024-11-09 15:04:29,225 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand