./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a23e058fd7e99c388c57a29154ab8770cf868cf3c645eba0bb26fd121678d7da --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 14:05:30,556 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 14:05:30,613 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 14:05:30,618 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 14:05:30,620 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 14:05:30,645 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 14:05:30,645 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 14:05:30,645 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 14:05:30,646 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 14:05:30,647 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 14:05:30,648 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 14:05:30,648 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 14:05:30,648 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 14:05:30,651 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 14:05:30,651 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 14:05:30,651 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 14:05:30,651 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 14:05:30,652 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 14:05:30,652 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 14:05:30,652 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 14:05:30,652 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 14:05:30,652 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 14:05:30,653 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 14:05:30,653 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 14:05:30,653 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 14:05:30,653 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 14:05:30,653 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 14:05:30,653 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 14:05:30,653 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 14:05:30,654 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 14:05:30,654 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 14:05:30,654 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 14:05:30,654 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 14:05:30,654 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 14:05:30,654 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:05:30,655 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 14:05:30,655 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 14:05:30,655 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 14:05:30,655 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 14:05:30,655 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 14:05:30,655 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 14:05:30,658 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 14:05:30,658 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 14:05:30,658 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 14:05:30,658 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a23e058fd7e99c388c57a29154ab8770cf868cf3c645eba0bb26fd121678d7da [2024-11-19 14:05:30,860 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 14:05:30,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 14:05:30,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 14:05:30,881 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 14:05:30,881 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 14:05:30,882 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c [2024-11-19 14:05:32,158 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 14:05:32,343 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 14:05:32,344 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-ticket-7.wvr.c [2024-11-19 14:05:32,350 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ffbb9e3c/060e2610b8dc4e8ebeb7834d955956d7/FLAGeb5bd5556 [2024-11-19 14:05:32,725 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ffbb9e3c/060e2610b8dc4e8ebeb7834d955956d7 [2024-11-19 14:05:32,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 14:05:32,728 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 14:05:32,729 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 14:05:32,729 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 14:05:32,733 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 14:05:32,734 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:05:32" (1/1) ... [2024-11-19 14:05:32,735 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74a612eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:32, skipping insertion in model container [2024-11-19 14:05:32,735 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 02:05:32" (1/1) ... [2024-11-19 14:05:32,752 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 14:05:32,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:05:32,969 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 14:05:33,022 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 14:05:33,040 INFO L204 MainTranslator]: Completed translation [2024-11-19 14:05:33,040 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:33 WrapperNode [2024-11-19 14:05:33,040 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 14:05:33,041 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 14:05:33,041 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 14:05:33,041 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 14:05:33,049 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:33" (1/1) ... [2024-11-19 14:05:33,055 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:33" (1/1) ... [2024-11-19 14:05:33,077 INFO L138 Inliner]: procedures = 23, calls = 23, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 298 [2024-11-19 14:05:33,079 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 14:05:33,079 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 14:05:33,079 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 14:05:33,079 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 14:05:33,088 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:33" (1/1) ... [2024-11-19 14:05:33,089 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:33" (1/1) ... [2024-11-19 14:05:33,091 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:33" (1/1) ... [2024-11-19 14:05:33,104 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 14:05:33,104 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:33" (1/1) ... [2024-11-19 14:05:33,105 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:33" (1/1) ... [2024-11-19 14:05:33,109 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:33" (1/1) ... [2024-11-19 14:05:33,111 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:33" (1/1) ... [2024-11-19 14:05:33,112 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:33" (1/1) ... [2024-11-19 14:05:33,113 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:33" (1/1) ... [2024-11-19 14:05:33,115 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 14:05:33,116 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 14:05:33,116 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 14:05:33,116 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 14:05:33,118 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:33" (1/1) ... [2024-11-19 14:05:33,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 14:05:33,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 14:05:33,156 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 14:05:33,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 14:05:33,207 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 14:05:33,207 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-19 14:05:33,207 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-19 14:05:33,207 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-19 14:05:33,207 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-19 14:05:33,207 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-19 14:05:33,207 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-19 14:05:33,208 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-11-19 14:05:33,208 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-11-19 14:05:33,209 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 14:05:33,209 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-11-19 14:05:33,210 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-11-19 14:05:33,210 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-11-19 14:05:33,210 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-11-19 14:05:33,210 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2024-11-19 14:05:33,210 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2024-11-19 14:05:33,210 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 14:05:33,210 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 14:05:33,212 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-19 14:05:33,330 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 14:05:33,332 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 14:05:33,672 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-19 14:05:33,672 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 14:05:33,869 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 14:05:33,869 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-19 14:05:33,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:05:33 BoogieIcfgContainer [2024-11-19 14:05:33,870 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 14:05:33,873 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 14:05:33,873 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 14:05:33,876 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 14:05:33,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 02:05:32" (1/3) ... [2024-11-19 14:05:33,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c3619d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:05:33, skipping insertion in model container [2024-11-19 14:05:33,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 02:05:33" (2/3) ... [2024-11-19 14:05:33,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c3619d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 02:05:33, skipping insertion in model container [2024-11-19 14:05:33,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 02:05:33" (3/3) ... [2024-11-19 14:05:33,878 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-7.wvr.c [2024-11-19 14:05:33,893 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 14:05:33,893 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 28 error locations. [2024-11-19 14:05:33,893 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-19 14:05:33,993 INFO L143 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2024-11-19 14:05:34,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 137 places, 121 transitions, 291 flow [2024-11-19 14:05:34,050 INFO L124 PetriNetUnfolderBase]: 6/114 cut-off events. [2024-11-19 14:05:34,050 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-19 14:05:34,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 114 events. 6/114 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 359 event pairs, 0 based on Foata normal form. 0/80 useless extension candidates. Maximal degree in co-relation 108. Up to 2 conditions per place. [2024-11-19 14:05:34,054 INFO L82 GeneralOperation]: Start removeDead. Operand has 137 places, 121 transitions, 291 flow [2024-11-19 14:05:34,058 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 128 places, 112 transitions, 263 flow [2024-11-19 14:05:34,065 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 14:05:34,073 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;@2e52b98b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 14:05:34,074 INFO L334 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2024-11-19 14:05:34,080 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-19 14:05:34,080 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-11-19 14:05:34,080 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-19 14:05:34,080 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-19 14:05:34,081 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 14:05:34,082 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 60 more)] === [2024-11-19 14:05:34,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 14:05:34,086 INFO L85 PathProgramCache]: Analyzing trace with hash 195339054, now seen corresponding path program 1 times [2024-11-19 14:05:34,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 14:05:34,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050274396] [2024-11-19 14:05:34,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 14:05:34,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 14:05:34,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 14:05:34,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 14:05:34,380 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 14:05:34,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050274396] [2024-11-19 14:05:34,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050274396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 14:05:34,381 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 14:05:34,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 14:05:34,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228602981] [2024-11-19 14:05:34,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 14:05:34,389 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 14:05:34,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 14:05:34,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 14:05:34,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 14:05:34,428 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 121 [2024-11-19 14:05:34,430 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 112 transitions, 263 flow. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-19 14:05:34,430 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-19 14:05:34,430 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 121 [2024-11-19 14:05:34,431 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand