./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.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_85-list2_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 da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 06:36:42,623 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:36:42,676 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 06:36:42,679 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:36:42,679 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:36:42,693 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:36:42,693 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:36:42,693 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:36:42,693 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:36:42,694 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:36:42,694 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 06:36:42,694 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 06:36:42,694 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:36:42,694 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:36:42,694 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:36:42,694 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:36:42,694 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 06:36:42,694 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 06:36:42,694 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:36:42,694 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 06:36:42,694 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:36:42,694 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 06:36:42,694 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 06:36:42,694 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 06:36:42,695 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 06:36:42,695 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:36:42,695 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 06:36:42,695 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:36:42,695 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:36:42,695 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:36:42,695 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:36:42,695 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:36:42,695 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 06:36:42,695 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 06:36:42,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:36:42,695 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:36:42,695 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 06:36:42,695 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 06:36:42,695 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 06:36:42,695 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:36:42,695 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 06:36:42,695 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 06:36:42,695 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 06:36:42,696 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 06:36:42,696 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 06:36:42,696 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> da9f6c449f4da806b6a3bb0aaf2c3c9171ea9b71d075f7e8b1d9543f656f7b8b [2025-03-09 06:36:42,926 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:36:42,934 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:36:42,936 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:36:42,937 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:36:42,937 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:36:42,940 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2025-03-09 06:36:44,137 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7c38b581/e1f52b24cf814e28b52f7eee84eff2fc/FLAG8e4e7cc6a [2025-03-09 06:36:44,441 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:36:44,441 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_85-list2_racefree.i [2025-03-09 06:36:44,458 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7c38b581/e1f52b24cf814e28b52f7eee84eff2fc/FLAG8e4e7cc6a [2025-03-09 06:36:44,475 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d7c38b581/e1f52b24cf814e28b52f7eee84eff2fc [2025-03-09 06:36:44,477 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:36:44,478 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:36:44,480 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:36:44,480 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:36:44,483 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:36:44,484 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:36:44" (1/1) ... [2025-03-09 06:36:44,486 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48dace18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:44, skipping insertion in model container [2025-03-09 06:36:44,486 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:36:44" (1/1) ... [2025-03-09 06:36:44,522 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:36:44,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:36:44,772 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:36:44,826 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:36:44,864 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:36:44,864 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:44 WrapperNode [2025-03-09 06:36:44,864 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:36:44,865 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:36:44,865 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:36:44,865 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:36:44,869 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:44" (1/1) ... [2025-03-09 06:36:44,878 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:44" (1/1) ... [2025-03-09 06:36:44,904 INFO L138 Inliner]: procedures = 280, calls = 97, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 365 [2025-03-09 06:36:44,907 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:36:44,907 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:36:44,907 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:36:44,907 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:36:44,913 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:44" (1/1) ... [2025-03-09 06:36:44,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:44" (1/1) ... [2025-03-09 06:36:44,917 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:44" (1/1) ... [2025-03-09 06:36:44,935 INFO L175 MemorySlicer]: Split 51 memory accesses to 9 slices as follows [2, 2, 5, 5, 23, 2, 5, 5, 2]. 45 percent of accesses are in the largest equivalence class. The 22 initializations are split as follows [2, 0, 5, 5, 0, 0, 5, 5, 0]. The 15 writes are split as follows [0, 1, 0, 0, 12, 1, 0, 0, 1]. [2025-03-09 06:36:44,936 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:44" (1/1) ... [2025-03-09 06:36:44,936 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:44" (1/1) ... [2025-03-09 06:36:44,944 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:44" (1/1) ... [2025-03-09 06:36:44,945 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:44" (1/1) ... [2025-03-09 06:36:44,947 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:44" (1/1) ... [2025-03-09 06:36:44,948 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:44" (1/1) ... [2025-03-09 06:36:44,950 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:36:44,951 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:36:44,951 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:36:44,951 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:36:44,952 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:44" (1/1) ... [2025-03-09 06:36:44,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:36:44,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:36:44,981 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) [2025-03-09 06:36:44,984 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 [2025-03-09 06:36:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-09 06:36:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-03-09 06:36:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2025-03-09 06:36:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2025-03-09 06:36:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2025-03-09 06:36:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2025-03-09 06:36:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2025-03-09 06:36:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2025-03-09 06:36:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2025-03-09 06:36:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2025-03-09 06:36:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2025-03-09 06:36:45,001 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2025-03-09 06:36:45,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-09 06:36:45,002 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-09 06:36:45,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-09 06:36:45,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-09 06:36:45,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-09 06:36:45,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-09 06:36:45,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2025-03-09 06:36:45,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2025-03-09 06:36:45,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2025-03-09 06:36:45,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2025-03-09 06:36:45,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2025-03-09 06:36:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2025-03-09 06:36:45,003 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2025-03-09 06:36:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-09 06:36:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-09 06:36:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-09 06:36:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-09 06:36:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2025-03-09 06:36:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2025-03-09 06:36:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2025-03-09 06:36:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2025-03-09 06:36:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2025-03-09 06:36:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-09 06:36:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-09 06:36:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 06:36:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-03-09 06:36:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2025-03-09 06:36:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2025-03-09 06:36:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2025-03-09 06:36:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2025-03-09 06:36:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2025-03-09 06:36:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2025-03-09 06:36:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2025-03-09 06:36:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2025-03-09 06:36:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2025-03-09 06:36:45,003 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2025-03-09 06:36:45,003 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 06:36:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-09 06:36:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-09 06:36:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-09 06:36:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2025-03-09 06:36:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2025-03-09 06:36:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2025-03-09 06:36:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2025-03-09 06:36:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2025-03-09 06:36:45,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:36:45,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:36:45,005 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 06:36:45,180 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:36:45,182 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:36:45,605 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1053: havoc main_~#t1_ids~0#1.base, main_~#t1_ids~0#1.offset; [2025-03-09 06:36:45,605 INFO L1307 $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 [2025-03-09 06:36:45,605 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1054: havoc main_~#t2_ids~0#1.base, main_~#t2_ids~0#1.offset; [2025-03-09 06:36:45,605 INFO L1307 $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 [2025-03-09 06:36:45,605 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1055: havoc main_~#t3_ids~0#1.base, main_~#t3_ids~0#1.offset; [2025-03-09 06:36:45,605 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L1055-1: SUMMARY for call ULTIMATE.dealloc(main_~#t3_ids~0#1.base, main_~#t3_ids~0#1.offset); srcloc: null [2025-03-09 06:36:45,606 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 06:36:45,606 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:36:45,833 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:36:45,833 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:36:45,833 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:36:45 BoogieIcfgContainer [2025-03-09 06:36:45,833 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:36:45,835 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 06:36:45,835 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 06:36:45,838 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 06:36:45,838 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 06:36:44" (1/3) ... [2025-03-09 06:36:45,838 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f31d83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:36:45, skipping insertion in model container [2025-03-09 06:36:45,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:36:44" (2/3) ... [2025-03-09 06:36:45,839 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75f31d83 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:36:45, skipping insertion in model container [2025-03-09 06:36:45,839 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:36:45" (3/3) ... [2025-03-09 06:36:45,839 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_85-list2_racefree.i [2025-03-09 06:36:45,851 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 06:36:45,852 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_85-list2_racefree.i that has 4 procedures, 128 locations, 1 initial locations, 16 loop locations, and 20 error locations. [2025-03-09 06:36:45,852 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 06:36:45,945 INFO L143 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2025-03-09 06:36:45,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 165 transitions, 369 flow [2025-03-09 06:36:46,093 INFO L124 PetriNetUnfolderBase]: 114/578 cut-off events. [2025-03-09 06:36:46,094 INFO L125 PetriNetUnfolderBase]: For 36/36 co-relation queries the response was YES. [2025-03-09 06:36:46,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 632 conditions, 578 events. 114/578 cut-off events. For 36/36 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3638 event pairs, 0 based on Foata normal form. 0/382 useless extension candidates. Maximal degree in co-relation 297. Up to 16 conditions per place. [2025-03-09 06:36:46,103 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 165 transitions, 369 flow [2025-03-09 06:36:46,109 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 137 places, 165 transitions, 369 flow [2025-03-09 06:36:46,114 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:36:46,122 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;@12caee83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:36:46,123 INFO L334 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2025-03-09 06:36:46,130 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 06:36:46,131 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2025-03-09 06:36:46,131 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:36:46,131 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:36:46,132 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-03-09 06:36:46,133 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2025-03-09 06:36:46,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:36:46,137 INFO L85 PathProgramCache]: Analyzing trace with hash 862071547, now seen corresponding path program 1 times [2025-03-09 06:36:46,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:36:46,143 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664781931] [2025-03-09 06:36:46,144 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:36:46,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:36:46,219 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:36:46,258 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:36:46,259 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:36:46,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:36:46,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:36:46,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:36:46,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664781931] [2025-03-09 06:36:46,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664781931] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:36:46,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:36:46,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:36:46,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950226420] [2025-03-09 06:36:46,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:36:46,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:36:46,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:36:46,486 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:36:46,486 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:36:46,497 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 165 [2025-03-09 06:36:46,500 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 165 transitions, 369 flow. Second operand has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 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) [2025-03-09 06:36:46,500 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:36:46,500 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 165 [2025-03-09 06:36:46,502 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:36:59,788 INFO L124 PetriNetUnfolderBase]: 129279/223461 cut-off events. [2025-03-09 06:36:59,788 INFO L125 PetriNetUnfolderBase]: For 7454/7454 co-relation queries the response was YES. [2025-03-09 06:37:00,126 INFO L83 FinitePrefix]: Finished finitePrefix Result has 402299 conditions, 223461 events. 129279/223461 cut-off events. For 7454/7454 co-relation queries the response was YES. Maximal size of possible extension queue 4074. Compared 2193123 event pairs, 84624 based on Foata normal form. 18900/208512 useless extension candidates. Maximal degree in co-relation 350150. Up to 175369 conditions per place. [2025-03-09 06:37:00,859 INFO L140 encePairwiseOnDemand]: 137/165 looper letters, 95 selfloop transitions, 3 changer transitions 0/152 dead transitions. [2025-03-09 06:37:00,859 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 152 transitions, 539 flow [2025-03-09 06:37:00,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:37:00,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:37:00,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 339 transitions. [2025-03-09 06:37:00,869 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5136363636363637 [2025-03-09 06:37:00,870 INFO L175 Difference]: Start difference. First operand has 137 places, 165 transitions, 369 flow. Second operand 4 states and 339 transitions. [2025-03-09 06:37:00,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 152 transitions, 539 flow [2025-03-09 06:37:00,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 138 places, 152 transitions, 539 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-09 06:37:00,934 INFO L231 Difference]: Finished difference. Result has 139 places, 141 transitions, 331 flow [2025-03-09 06:37:00,936 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=321, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=141, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=331, PETRI_PLACES=139, PETRI_TRANSITIONS=141} [2025-03-09 06:37:00,939 INFO L279 CegarLoopForPetriNet]: 137 programPoint places, 2 predicate places. [2025-03-09 06:37:00,940 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 141 transitions, 331 flow [2025-03-09 06:37:00,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.25) internal successors, (221), 4 states have internal predecessors, (221), 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) [2025-03-09 06:37:00,940 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:37:00,941 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2025-03-09 06:37:00,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 06:37:00,941 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 28 more)] === [2025-03-09 06:37:00,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:37:00,943 INFO L85 PathProgramCache]: Analyzing trace with hash -1930186888, now seen corresponding path program 1 times [2025-03-09 06:37:00,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:37:00,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816682630] [2025-03-09 06:37:00,943 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:37:00,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:37:00,973 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 06:37:01,003 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:37:01,007 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:01,008 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:37:01,008 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 06:37:01,016 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 06:37:01,043 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:37:01,043 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:01,043 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 06:37:01,074 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 06:37:01,075 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-09 06:37:01,077 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (30 of 31 remaining) [2025-03-09 06:37:01,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 31 remaining) [2025-03-09 06:37:01,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 31 remaining) [2025-03-09 06:37:01,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 31 remaining) [2025-03-09 06:37:01,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 31 remaining) [2025-03-09 06:37:01,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 31 remaining) [2025-03-09 06:37:01,078 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 31 remaining) [2025-03-09 06:37:01,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 31 remaining) [2025-03-09 06:37:01,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 31 remaining) [2025-03-09 06:37:01,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 31 remaining) [2025-03-09 06:37:01,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 31 remaining) [2025-03-09 06:37:01,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 31 remaining) [2025-03-09 06:37:01,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 31 remaining) [2025-03-09 06:37:01,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 31 remaining) [2025-03-09 06:37:01,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 31 remaining) [2025-03-09 06:37:01,079 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 31 remaining) [2025-03-09 06:37:01,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 31 remaining) [2025-03-09 06:37:01,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 31 remaining) [2025-03-09 06:37:01,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 31 remaining) [2025-03-09 06:37:01,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 31 remaining) [2025-03-09 06:37:01,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 31 remaining) [2025-03-09 06:37:01,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 31 remaining) [2025-03-09 06:37:01,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 31 remaining) [2025-03-09 06:37:01,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 31 remaining) [2025-03-09 06:37:01,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 31 remaining) [2025-03-09 06:37:01,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 31 remaining) [2025-03-09 06:37:01,081 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 31 remaining) [2025-03-09 06:37:01,081 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 31 remaining) [2025-03-09 06:37:01,081 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 31 remaining) [2025-03-09 06:37:01,081 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 31 remaining) [2025-03-09 06:37:01,081 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 31 remaining) [2025-03-09 06:37:01,081 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 06:37:01,082 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-09 06:37:01,085 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-09 06:37:01,085 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-09 06:37:01,169 INFO L143 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2025-03-09 06:37:01,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 227 places, 284 transitions, 652 flow [2025-03-09 06:37:01,471 INFO L124 PetriNetUnfolderBase]: 851/3387 cut-off events. [2025-03-09 06:37:01,471 INFO L125 PetriNetUnfolderBase]: For 602/647 co-relation queries the response was YES. [2025-03-09 06:37:01,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4035 conditions, 3387 events. 851/3387 cut-off events. For 602/647 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 30580 event pairs, 22 based on Foata normal form. 0/2306 useless extension candidates. Maximal degree in co-relation 2169. Up to 192 conditions per place. [2025-03-09 06:37:01,512 INFO L82 GeneralOperation]: Start removeDead. Operand has 227 places, 284 transitions, 652 flow [2025-03-09 06:37:01,551 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 227 places, 284 transitions, 652 flow [2025-03-09 06:37:01,552 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:37:01,552 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;@12caee83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:37:01,552 INFO L334 AbstractCegarLoop]: Starting to check reachability of 39 error locations. [2025-03-09 06:37:01,554 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 06:37:01,554 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2025-03-09 06:37:01,554 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:37:01,554 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:37:01,555 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-03-09 06:37:01,555 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 36 more)] === [2025-03-09 06:37:01,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:37:01,555 INFO L85 PathProgramCache]: Analyzing trace with hash 1127473086, now seen corresponding path program 1 times [2025-03-09 06:37:01,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:37:01,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180365567] [2025-03-09 06:37:01,555 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:37:01,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:37:01,573 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 06:37:01,581 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 06:37:01,581 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:37:01,581 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:37:01,626 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:37:01,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:37:01,630 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180365567] [2025-03-09 06:37:01,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180365567] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:37:01,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:37:01,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:37:01,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923667709] [2025-03-09 06:37:01,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:37:01,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:37:01,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:37:01,631 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:37:01,631 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:37:01,639 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 284 [2025-03-09 06:37:01,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 284 transitions, 652 flow. Second operand has 4 states, 4 states have (on average 85.25) internal successors, (341), 4 states have internal predecessors, (341), 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) [2025-03-09 06:37:01,640 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:37:01,640 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 284 [2025-03-09 06:37:01,640 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand