./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/bigshot_s2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/bigshot_s2.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fa644cc26c2bb4f900e6af52233648196eb4dff503d36a50559ddcf2a4270ffb --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 14:07:14,113 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 14:07:14,180 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 14:07:14,186 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 14:07:14,187 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 14:07:14,215 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 14:07:14,217 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 14:07:14,218 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 14:07:14,219 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 14:07:14,220 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 14:07:14,221 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 14:07:14,221 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 14:07:14,222 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 14:07:14,225 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 14:07:14,225 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 14:07:14,225 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 14:07:14,226 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 14:07:14,226 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 14:07:14,226 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 14:07:14,227 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 14:07:14,227 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 14:07:14,228 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 14:07:14,229 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 14:07:14,229 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 14:07:14,229 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 14:07:14,229 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 14:07:14,229 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 14:07:14,230 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 14:07:14,230 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 14:07:14,230 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 14:07:14,230 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 14:07:14,231 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 14:07:14,231 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:07:14,231 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 14:07:14,231 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 14:07:14,231 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 14:07:14,231 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 14:07:14,232 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 14:07:14,232 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 14:07:14,233 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 14:07:14,234 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 14:07:14,234 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 14:07:14,234 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fa644cc26c2bb4f900e6af52233648196eb4dff503d36a50559ddcf2a4270ffb [2024-10-11 14:07:14,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 14:07:14,535 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 14:07:14,538 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 14:07:14,539 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 14:07:14,540 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 14:07:14,541 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/bigshot_s2.i [2024-10-11 14:07:15,961 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 14:07:16,218 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 14:07:16,219 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/bigshot_s2.i [2024-10-11 14:07:16,239 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/c2533ac54/6da1f4801f4c416ab098f51ee342ec3a/FLAGb1b1ef520 [2024-10-11 14:07:16,254 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/c2533ac54/6da1f4801f4c416ab098f51ee342ec3a [2024-10-11 14:07:16,257 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 14:07:16,259 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 14:07:16,261 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 14:07:16,261 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 14:07:16,267 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 14:07:16,268 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:07:16" (1/1) ... [2024-10-11 14:07:16,269 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71a16cee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:07:16, skipping insertion in model container [2024-10-11 14:07:16,269 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:07:16" (1/1) ... [2024-10-11 14:07:16,326 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 14:07:16,744 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/bigshot_s2.i[55203,55216] [2024-10-11 14:07:16,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:07:16,773 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 14:07:16,820 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/bigshot_s2.i[55203,55216] [2024-10-11 14:07:16,825 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:07:16,892 INFO L204 MainTranslator]: Completed translation [2024-10-11 14:07:16,893 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:07:16 WrapperNode [2024-10-11 14:07:16,893 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 14:07:16,894 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 14:07:16,894 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 14:07:16,894 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 14:07:16,901 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:07:16" (1/1) ... [2024-10-11 14:07:16,916 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:07:16" (1/1) ... [2024-10-11 14:07:16,939 INFO L138 Inliner]: procedures = 322, calls = 23, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 57 [2024-10-11 14:07:16,939 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 14:07:16,940 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 14:07:16,940 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 14:07:16,940 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 14:07:16,949 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:07:16" (1/1) ... [2024-10-11 14:07:16,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:07:16" (1/1) ... [2024-10-11 14:07:16,951 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:07:16" (1/1) ... [2024-10-11 14:07:16,965 INFO L175 MemorySlicer]: Split 13 memory accesses to 3 slices as follows [2, 9, 2]. 69 percent of accesses are in the largest equivalence class. The 10 initializations are split as follows [2, 8, 0]. The 1 writes are split as follows [0, 0, 1]. [2024-10-11 14:07:16,965 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:07:16" (1/1) ... [2024-10-11 14:07:16,965 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:07:16" (1/1) ... [2024-10-11 14:07:16,971 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:07:16" (1/1) ... [2024-10-11 14:07:16,974 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:07:16" (1/1) ... [2024-10-11 14:07:16,976 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:07:16" (1/1) ... [2024-10-11 14:07:16,980 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:07:16" (1/1) ... [2024-10-11 14:07:16,982 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 14:07:16,984 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 14:07:16,984 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 14:07:16,984 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 14:07:16,985 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:07:16" (1/1) ... [2024-10-11 14:07:16,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:07:17,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:07:17,016 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 14:07:17,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 14:07:17,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-10-11 14:07:17,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-10-11 14:07:17,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-10-11 14:07:17,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 14:07:17,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 14:07:17,059 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 14:07:17,060 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-10-11 14:07:17,060 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-10-11 14:07:17,060 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-10-11 14:07:17,060 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-10-11 14:07:17,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 14:07:17,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 14:07:17,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 14:07:17,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 14:07:17,061 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 14:07:17,061 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 14:07:17,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 14:07:17,063 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 14:07:17,225 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 14:07:17,228 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 14:07:17,397 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 14:07:17,397 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 14:07:17,493 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 14:07:17,494 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 14:07:17,494 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:07:17 BoogieIcfgContainer [2024-10-11 14:07:17,494 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 14:07:17,496 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 14:07:17,496 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 14:07:17,499 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 14:07:17,499 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:07:16" (1/3) ... [2024-10-11 14:07:17,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e43ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:07:17, skipping insertion in model container [2024-10-11 14:07:17,500 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:07:16" (2/3) ... [2024-10-11 14:07:17,500 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e43ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:07:17, skipping insertion in model container [2024-10-11 14:07:17,501 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:07:17" (3/3) ... [2024-10-11 14:07:17,505 INFO L112 eAbstractionObserver]: Analyzing ICFG bigshot_s2.i [2024-10-11 14:07:17,522 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 14:07:17,522 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 14:07:17,522 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 14:07:17,570 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-11 14:07:17,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 29 places, 26 transitions, 66 flow [2024-10-11 14:07:17,635 INFO L124 PetriNetUnfolderBase]: 4/24 cut-off events. [2024-10-11 14:07:17,637 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 14:07:17,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 24 events. 4/24 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 16 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2024-10-11 14:07:17,639 INFO L82 GeneralOperation]: Start removeDead. Operand has 29 places, 26 transitions, 66 flow [2024-10-11 14:07:17,642 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 25 places, 21 transitions, 54 flow [2024-10-11 14:07:17,656 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 14:07:17,666 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;@2945de01, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 14:07:17,666 INFO L334 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-10-11 14:07:17,678 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 14:07:17,679 INFO L124 PetriNetUnfolderBase]: 3/20 cut-off events. [2024-10-11 14:07:17,679 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 14:07:17,679 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:07:17,680 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:07:17,680 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-11 14:07:17,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:07:17,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1735421001, now seen corresponding path program 1 times [2024-10-11 14:07:17,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:07:17,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344414676] [2024-10-11 14:07:17,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:07:17,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:07:17,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:07:18,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:07:18,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:07:18,010 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344414676] [2024-10-11 14:07:18,010 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344414676] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:07:18,010 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:07:18,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 14:07:18,014 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [428896238] [2024-10-11 14:07:18,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:07:18,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 14:07:18,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:07:18,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 14:07:18,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 14:07:18,050 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 26 [2024-10-11 14:07:18,052 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 21 transitions, 54 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-10-11 14:07:18,053 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:07:18,053 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 26 [2024-10-11 14:07:18,054 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:07:18,094 INFO L124 PetriNetUnfolderBase]: 7/31 cut-off events. [2024-10-11 14:07:18,094 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 14:07:18,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67 conditions, 31 events. 7/31 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 19 event pairs, 4 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 46. Up to 23 conditions per place. [2024-10-11 14:07:18,096 INFO L140 encePairwiseOnDemand]: 23/26 looper letters, 15 selfloop transitions, 1 changer transitions 0/20 dead transitions. [2024-10-11 14:07:18,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 20 transitions, 84 flow [2024-10-11 14:07:18,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 14:07:18,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 14:07:18,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 39 transitions. [2024-10-11 14:07:18,108 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-10-11 14:07:18,110 INFO L175 Difference]: Start difference. First operand has 25 places, 21 transitions, 54 flow. Second operand 3 states and 39 transitions. [2024-10-11 14:07:18,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 20 transitions, 84 flow [2024-10-11 14:07:18,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 20 transitions, 76 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-11 14:07:18,114 INFO L231 Difference]: Finished difference. Result has 23 places, 19 transitions, 44 flow [2024-10-11 14:07:18,116 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=44, PETRI_PLACES=23, PETRI_TRANSITIONS=19} [2024-10-11 14:07:18,119 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, -2 predicate places. [2024-10-11 14:07:18,119 INFO L471 AbstractCegarLoop]: Abstraction has has 23 places, 19 transitions, 44 flow [2024-10-11 14:07:18,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2024-10-11 14:07:18,120 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:07:18,120 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:07:18,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 14:07:18,120 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-11 14:07:18,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:07:18,121 INFO L85 PathProgramCache]: Analyzing trace with hash 189788603, now seen corresponding path program 1 times [2024-10-11 14:07:18,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:07:18,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96542499] [2024-10-11 14:07:18,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:07:18,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:07:18,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:07:18,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:07:18,777 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:07:18,777 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96542499] [2024-10-11 14:07:18,777 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96542499] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:07:18,777 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:07:18,777 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-11 14:07:18,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1553832694] [2024-10-11 14:07:18,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:07:18,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-11 14:07:18,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:07:18,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-11 14:07:18,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-11 14:07:18,796 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 5 out of 26 [2024-10-11 14:07:18,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 23 places, 19 transitions, 44 flow. Second operand has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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) [2024-10-11 14:07:18,797 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:07:18,797 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5 of 26 [2024-10-11 14:07:18,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:07:18,978 INFO L124 PetriNetUnfolderBase]: 12/49 cut-off events. [2024-10-11 14:07:18,978 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 14:07:18,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 49 events. 12/49 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 77 event pairs, 5 based on Foata normal form. 1/48 useless extension candidates. Maximal degree in co-relation 84. Up to 27 conditions per place. [2024-10-11 14:07:18,979 INFO L140 encePairwiseOnDemand]: 19/26 looper letters, 17 selfloop transitions, 5 changer transitions 5/30 dead transitions. [2024-10-11 14:07:18,979 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 30 transitions, 121 flow [2024-10-11 14:07:18,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 14:07:18,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 14:07:18,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 68 transitions. [2024-10-11 14:07:18,984 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3269230769230769 [2024-10-11 14:07:18,984 INFO L175 Difference]: Start difference. First operand has 23 places, 19 transitions, 44 flow. Second operand 8 states and 68 transitions. [2024-10-11 14:07:18,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 30 transitions, 121 flow [2024-10-11 14:07:18,985 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 30 transitions, 120 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 14:07:18,988 INFO L231 Difference]: Finished difference. Result has 32 places, 22 transitions, 71 flow [2024-10-11 14:07:18,988 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=43, PETRI_DIFFERENCE_MINUEND_PLACES=22, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=19, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=15, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=71, PETRI_PLACES=32, PETRI_TRANSITIONS=22} [2024-10-11 14:07:18,989 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 7 predicate places. [2024-10-11 14:07:18,989 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 22 transitions, 71 flow [2024-10-11 14:07:18,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 6.875) internal successors, (55), 8 states have internal predecessors, (55), 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) [2024-10-11 14:07:18,990 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:07:18,990 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:07:18,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 14:07:18,991 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-11 14:07:18,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:07:18,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1445022474, now seen corresponding path program 1 times [2024-10-11 14:07:18,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:07:18,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [50345733] [2024-10-11 14:07:18,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:07:18,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:07:19,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:07:19,207 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:07:19,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:07:19,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [50345733] [2024-10-11 14:07:19,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [50345733] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:07:19,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [29124764] [2024-10-11 14:07:19,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:07:19,208 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:07:19,209 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:07:19,210 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:07:19,212 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 14:07:19,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:07:19,327 INFO L255 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-11 14:07:19,331 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:07:19,474 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-11 14:07:19,488 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:07:19,488 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 14:07:19,568 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:07:19,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [29124764] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 14:07:19,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 14:07:19,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2024-10-11 14:07:19,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724885049] [2024-10-11 14:07:19,570 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 14:07:19,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-10-11 14:07:19,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:07:19,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-10-11 14:07:19,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-10-11 14:07:19,572 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 26 [2024-10-11 14:07:19,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 71 flow. Second operand has 14 states, 14 states have (on average 9.928571428571429) internal successors, (139), 14 states have internal predecessors, (139), 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) [2024-10-11 14:07:19,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:07:19,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 26 [2024-10-11 14:07:19,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:07:19,737 INFO L124 PetriNetUnfolderBase]: 14/50 cut-off events. [2024-10-11 14:07:19,738 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-10-11 14:07:19,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 130 conditions, 50 events. 14/50 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 50 event pairs, 6 based on Foata normal form. 2/51 useless extension candidates. Maximal degree in co-relation 121. Up to 29 conditions per place. [2024-10-11 14:07:19,739 INFO L140 encePairwiseOnDemand]: 21/26 looper letters, 19 selfloop transitions, 6 changer transitions 1/29 dead transitions. [2024-10-11 14:07:19,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 29 transitions, 141 flow [2024-10-11 14:07:19,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 14:07:19,740 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 14:07:19,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 76 transitions. [2024-10-11 14:07:19,741 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4175824175824176 [2024-10-11 14:07:19,741 INFO L175 Difference]: Start difference. First operand has 32 places, 22 transitions, 71 flow. Second operand 7 states and 76 transitions. [2024-10-11 14:07:19,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 29 transitions, 141 flow [2024-10-11 14:07:19,742 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 29 transitions, 136 flow, removed 2 selfloop flow, removed 3 redundant places. [2024-10-11 14:07:19,743 INFO L231 Difference]: Finished difference. Result has 35 places, 24 transitions, 96 flow [2024-10-11 14:07:19,743 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=96, PETRI_PLACES=35, PETRI_TRANSITIONS=24} [2024-10-11 14:07:19,744 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 10 predicate places. [2024-10-11 14:07:19,744 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 24 transitions, 96 flow [2024-10-11 14:07:19,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 9.928571428571429) internal successors, (139), 14 states have internal predecessors, (139), 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) [2024-10-11 14:07:19,745 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:07:19,745 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:07:19,764 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 14:07:19,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:07:19,946 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-11 14:07:19,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:07:19,947 INFO L85 PathProgramCache]: Analyzing trace with hash -747664779, now seen corresponding path program 2 times [2024-10-11 14:07:19,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:07:19,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659981085] [2024-10-11 14:07:19,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:07:19,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:07:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:07:20,184 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:07:20,184 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:07:20,184 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659981085] [2024-10-11 14:07:20,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659981085] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:07:20,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1593514517] [2024-10-11 14:07:20,185 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-11 14:07:20,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:07:20,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:07:20,187 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:07:20,188 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 14:07:20,277 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-11 14:07:20,278 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 14:07:20,280 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-11 14:07:20,281 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:07:20,399 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-11 14:07:20,414 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:07:20,415 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 14:07:20,513 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:07:20,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1593514517] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 14:07:20,514 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 14:07:20,514 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 16 [2024-10-11 14:07:20,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405076265] [2024-10-11 14:07:20,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 14:07:20,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-11 14:07:20,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:07:20,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-11 14:07:20,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=214, Unknown=0, NotChecked=0, Total=272 [2024-10-11 14:07:20,517 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 26 [2024-10-11 14:07:20,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 24 transitions, 96 flow. Second operand has 17 states, 17 states have (on average 9.882352941176471) internal successors, (168), 17 states have internal predecessors, (168), 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) [2024-10-11 14:07:20,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:07:20,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 26 [2024-10-11 14:07:20,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:07:20,701 INFO L124 PetriNetUnfolderBase]: 16/56 cut-off events. [2024-10-11 14:07:20,701 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-10-11 14:07:20,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 56 events. 16/56 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 56 event pairs, 6 based on Foata normal form. 2/57 useless extension candidates. Maximal degree in co-relation 150. Up to 29 conditions per place. [2024-10-11 14:07:20,704 INFO L140 encePairwiseOnDemand]: 21/26 looper letters, 21 selfloop transitions, 7 changer transitions 1/32 dead transitions. [2024-10-11 14:07:20,704 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 32 transitions, 180 flow [2024-10-11 14:07:20,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-11 14:07:20,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-10-11 14:07:20,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 86 transitions. [2024-10-11 14:07:20,708 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41346153846153844 [2024-10-11 14:07:20,708 INFO L175 Difference]: Start difference. First operand has 35 places, 24 transitions, 96 flow. Second operand 8 states and 86 transitions. [2024-10-11 14:07:20,709 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 32 transitions, 180 flow [2024-10-11 14:07:20,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 32 transitions, 168 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-10-11 14:07:20,712 INFO L231 Difference]: Finished difference. Result has 40 places, 26 transitions, 120 flow [2024-10-11 14:07:20,713 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=120, PETRI_PLACES=40, PETRI_TRANSITIONS=26} [2024-10-11 14:07:20,714 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 15 predicate places. [2024-10-11 14:07:20,714 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 26 transitions, 120 flow [2024-10-11 14:07:20,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 9.882352941176471) internal successors, (168), 17 states have internal predecessors, (168), 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) [2024-10-11 14:07:20,714 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:07:20,714 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:07:20,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 14:07:20,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:07:20,915 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-11 14:07:20,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:07:20,916 INFO L85 PathProgramCache]: Analyzing trace with hash 877351762, now seen corresponding path program 3 times [2024-10-11 14:07:20,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:07:20,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1945293811] [2024-10-11 14:07:20,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:07:20,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:07:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:07:21,135 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:07:21,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:07:21,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1945293811] [2024-10-11 14:07:21,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1945293811] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:07:21,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2121702429] [2024-10-11 14:07:21,136 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-11 14:07:21,137 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:07:21,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:07:21,140 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:07:21,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 14:07:21,221 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2024-10-11 14:07:21,221 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 14:07:21,222 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-10-11 14:07:21,224 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:07:21,359 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-11 14:07:21,372 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:07:21,373 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 14:07:21,476 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:07:21,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2121702429] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 14:07:21,476 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 14:07:21,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 19 [2024-10-11 14:07:21,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941286275] [2024-10-11 14:07:21,477 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 14:07:21,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-11 14:07:21,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:07:21,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-11 14:07:21,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2024-10-11 14:07:21,478 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 26 [2024-10-11 14:07:21,479 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 26 transitions, 120 flow. Second operand has 20 states, 20 states have (on average 9.75) internal successors, (195), 20 states have internal predecessors, (195), 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) [2024-10-11 14:07:21,479 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:07:21,479 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 26 [2024-10-11 14:07:21,479 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:07:21,781 INFO L124 PetriNetUnfolderBase]: 18/62 cut-off events. [2024-10-11 14:07:21,782 INFO L125 PetriNetUnfolderBase]: For 51/51 co-relation queries the response was YES. [2024-10-11 14:07:21,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 211 conditions, 62 events. 18/62 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 64 event pairs, 6 based on Foata normal form. 2/63 useless extension candidates. Maximal degree in co-relation 188. Up to 29 conditions per place. [2024-10-11 14:07:21,783 INFO L140 encePairwiseOnDemand]: 21/26 looper letters, 23 selfloop transitions, 8 changer transitions 1/35 dead transitions. [2024-10-11 14:07:21,783 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 35 transitions, 218 flow [2024-10-11 14:07:21,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 14:07:21,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 14:07:21,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 96 transitions. [2024-10-11 14:07:21,786 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41025641025641024 [2024-10-11 14:07:21,786 INFO L175 Difference]: Start difference. First operand has 40 places, 26 transitions, 120 flow. Second operand 9 states and 96 transitions. [2024-10-11 14:07:21,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 35 transitions, 218 flow [2024-10-11 14:07:21,788 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 35 transitions, 200 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-10-11 14:07:21,790 INFO L231 Difference]: Finished difference. Result has 45 places, 28 transitions, 144 flow [2024-10-11 14:07:21,790 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=144, PETRI_PLACES=45, PETRI_TRANSITIONS=28} [2024-10-11 14:07:21,791 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 20 predicate places. [2024-10-11 14:07:21,793 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 28 transitions, 144 flow [2024-10-11 14:07:21,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 9.75) internal successors, (195), 20 states have internal predecessors, (195), 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) [2024-10-11 14:07:21,793 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:07:21,793 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:07:21,810 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 14:07:21,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:07:21,995 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-11 14:07:21,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:07:21,995 INFO L85 PathProgramCache]: Analyzing trace with hash -849848081, now seen corresponding path program 4 times [2024-10-11 14:07:21,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:07:21,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260746885] [2024-10-11 14:07:21,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:07:21,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:07:22,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:07:22,237 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:07:22,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:07:22,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260746885] [2024-10-11 14:07:22,238 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260746885] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:07:22,238 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055666982] [2024-10-11 14:07:22,238 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-11 14:07:22,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:07:22,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:07:22,240 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:07:22,242 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 14:07:22,321 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-11 14:07:22,322 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 14:07:22,323 INFO L255 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-10-11 14:07:22,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:07:22,502 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-11 14:07:22,521 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:07:22,521 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 14:07:22,657 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:07:22,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055666982] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 14:07:22,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 14:07:22,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 22 [2024-10-11 14:07:22,658 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250005818] [2024-10-11 14:07:22,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 14:07:22,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-10-11 14:07:22,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:07:22,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-10-11 14:07:22,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=422, Unknown=0, NotChecked=0, Total=506 [2024-10-11 14:07:22,666 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 26 [2024-10-11 14:07:22,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 28 transitions, 144 flow. Second operand has 23 states, 23 states have (on average 9.652173913043478) internal successors, (222), 23 states have internal predecessors, (222), 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) [2024-10-11 14:07:22,667 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:07:22,667 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 26 [2024-10-11 14:07:22,667 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:07:23,032 INFO L124 PetriNetUnfolderBase]: 20/68 cut-off events. [2024-10-11 14:07:23,032 INFO L125 PetriNetUnfolderBase]: For 101/101 co-relation queries the response was YES. [2024-10-11 14:07:23,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 68 events. 20/68 cut-off events. For 101/101 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 70 event pairs, 6 based on Foata normal form. 2/69 useless extension candidates. Maximal degree in co-relation 226. Up to 29 conditions per place. [2024-10-11 14:07:23,035 INFO L140 encePairwiseOnDemand]: 21/26 looper letters, 25 selfloop transitions, 9 changer transitions 1/38 dead transitions. [2024-10-11 14:07:23,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 38 transitions, 256 flow [2024-10-11 14:07:23,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-11 14:07:23,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-11 14:07:23,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 106 transitions. [2024-10-11 14:07:23,037 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4076923076923077 [2024-10-11 14:07:23,038 INFO L175 Difference]: Start difference. First operand has 45 places, 28 transitions, 144 flow. Second operand 10 states and 106 transitions. [2024-10-11 14:07:23,038 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 38 transitions, 256 flow [2024-10-11 14:07:23,041 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 38 transitions, 232 flow, removed 6 selfloop flow, removed 6 redundant places. [2024-10-11 14:07:23,042 INFO L231 Difference]: Finished difference. Result has 50 places, 30 transitions, 168 flow [2024-10-11 14:07:23,043 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=168, PETRI_PLACES=50, PETRI_TRANSITIONS=30} [2024-10-11 14:07:23,044 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 25 predicate places. [2024-10-11 14:07:23,044 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 30 transitions, 168 flow [2024-10-11 14:07:23,045 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 9.652173913043478) internal successors, (222), 23 states have internal predecessors, (222), 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) [2024-10-11 14:07:23,045 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:07:23,045 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:07:23,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-11 14:07:23,246 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-10-11 14:07:23,246 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-11 14:07:23,247 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:07:23,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1463446348, now seen corresponding path program 5 times [2024-10-11 14:07:23,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:07:23,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152127269] [2024-10-11 14:07:23,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:07:23,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:07:23,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:07:23,560 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:07:23,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:07:23,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152127269] [2024-10-11 14:07:23,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1152127269] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:07:23,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110554734] [2024-10-11 14:07:23,561 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-11 14:07:23,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:07:23,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:07:23,563 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:07:23,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 14:07:23,671 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2024-10-11 14:07:23,671 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 14:07:23,673 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-10-11 14:07:23,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:07:23,862 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-11 14:07:23,876 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:07:23,877 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 14:07:24,022 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:07:24,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110554734] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 14:07:24,023 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 14:07:24,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 25 [2024-10-11 14:07:24,024 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704863073] [2024-10-11 14:07:24,024 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 14:07:24,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-11 14:07:24,025 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:07:24,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-11 14:07:24,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650 [2024-10-11 14:07:24,032 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 26 [2024-10-11 14:07:24,032 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 30 transitions, 168 flow. Second operand has 26 states, 26 states have (on average 9.576923076923077) internal successors, (249), 26 states have internal predecessors, (249), 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) [2024-10-11 14:07:24,032 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:07:24,032 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 26 [2024-10-11 14:07:24,032 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:07:24,446 INFO L124 PetriNetUnfolderBase]: 22/74 cut-off events. [2024-10-11 14:07:24,446 INFO L125 PetriNetUnfolderBase]: For 169/169 co-relation queries the response was YES. [2024-10-11 14:07:24,447 INFO L83 FinitePrefix]: Finished finitePrefix Result has 291 conditions, 74 events. 22/74 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 74 event pairs, 6 based on Foata normal form. 2/75 useless extension candidates. Maximal degree in co-relation 264. Up to 29 conditions per place. [2024-10-11 14:07:24,448 INFO L140 encePairwiseOnDemand]: 21/26 looper letters, 27 selfloop transitions, 10 changer transitions 1/41 dead transitions. [2024-10-11 14:07:24,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 41 transitions, 294 flow [2024-10-11 14:07:24,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-11 14:07:24,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-10-11 14:07:24,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 116 transitions. [2024-10-11 14:07:24,451 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40559440559440557 [2024-10-11 14:07:24,451 INFO L175 Difference]: Start difference. First operand has 50 places, 30 transitions, 168 flow. Second operand 11 states and 116 transitions. [2024-10-11 14:07:24,451 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 41 transitions, 294 flow [2024-10-11 14:07:24,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 41 transitions, 264 flow, removed 8 selfloop flow, removed 7 redundant places. [2024-10-11 14:07:24,454 INFO L231 Difference]: Finished difference. Result has 55 places, 32 transitions, 192 flow [2024-10-11 14:07:24,454 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=192, PETRI_PLACES=55, PETRI_TRANSITIONS=32} [2024-10-11 14:07:24,456 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 30 predicate places. [2024-10-11 14:07:24,456 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 32 transitions, 192 flow [2024-10-11 14:07:24,456 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 9.576923076923077) internal successors, (249), 26 states have internal predecessors, (249), 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) [2024-10-11 14:07:24,457 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:07:24,457 INFO L204 CegarLoopForPetriNet]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:07:24,470 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-11 14:07:24,657 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:07:24,658 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-11 14:07:24,658 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:07:24,658 INFO L85 PathProgramCache]: Analyzing trace with hash -253666711, now seen corresponding path program 6 times [2024-10-11 14:07:24,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:07:24,658 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892105964] [2024-10-11 14:07:24,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:07:24,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:07:24,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:07:25,039 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:07:25,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:07:25,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892105964] [2024-10-11 14:07:25,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892105964] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:07:25,040 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27681050] [2024-10-11 14:07:25,040 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-11 14:07:25,040 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:07:25,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:07:25,042 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:07:25,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 14:07:25,148 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-10-11 14:07:25,148 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-11 14:07:25,150 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-10-11 14:07:25,152 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:07:25,386 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-10-11 14:07:25,403 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:07:25,403 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 14:07:25,580 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:07:25,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27681050] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 14:07:25,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 14:07:25,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2024-10-11 14:07:25,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881758374] [2024-10-11 14:07:25,581 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 14:07:25,581 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-11 14:07:25,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:07:25,582 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-11 14:07:25,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=702, Unknown=0, NotChecked=0, Total=812 [2024-10-11 14:07:25,589 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 26 [2024-10-11 14:07:25,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 32 transitions, 192 flow. Second operand has 29 states, 29 states have (on average 9.517241379310345) internal successors, (276), 29 states have internal predecessors, (276), 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) [2024-10-11 14:07:25,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 14:07:25,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 26 [2024-10-11 14:07:25,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 14:07:25,998 INFO L124 PetriNetUnfolderBase]: 24/80 cut-off events. [2024-10-11 14:07:25,999 INFO L125 PetriNetUnfolderBase]: For 255/255 co-relation queries the response was YES. [2024-10-11 14:07:26,000 INFO L83 FinitePrefix]: Finished finitePrefix Result has 331 conditions, 80 events. 24/80 cut-off events. For 255/255 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 80 event pairs, 6 based on Foata normal form. 2/81 useless extension candidates. Maximal degree in co-relation 302. Up to 29 conditions per place. [2024-10-11 14:07:26,000 INFO L140 encePairwiseOnDemand]: 21/26 looper letters, 29 selfloop transitions, 11 changer transitions 1/44 dead transitions. [2024-10-11 14:07:26,000 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 44 transitions, 332 flow [2024-10-11 14:07:26,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-11 14:07:26,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-10-11 14:07:26,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 126 transitions. [2024-10-11 14:07:26,003 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40384615384615385 [2024-10-11 14:07:26,003 INFO L175 Difference]: Start difference. First operand has 55 places, 32 transitions, 192 flow. Second operand 12 states and 126 transitions. [2024-10-11 14:07:26,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 44 transitions, 332 flow [2024-10-11 14:07:26,005 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 44 transitions, 296 flow, removed 10 selfloop flow, removed 8 redundant places. [2024-10-11 14:07:26,007 INFO L231 Difference]: Finished difference. Result has 60 places, 34 transitions, 216 flow [2024-10-11 14:07:26,008 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=26, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=216, PETRI_PLACES=60, PETRI_TRANSITIONS=34} [2024-10-11 14:07:26,009 INFO L277 CegarLoopForPetriNet]: 25 programPoint places, 35 predicate places. [2024-10-11 14:07:26,010 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 34 transitions, 216 flow [2024-10-11 14:07:26,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 9.517241379310345) internal successors, (276), 29 states have internal predecessors, (276), 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) [2024-10-11 14:07:26,010 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 14:07:26,011 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 14:07:26,025 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-11 14:07:26,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-10-11 14:07:26,211 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-10-11 14:07:26,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:07:26,212 INFO L85 PathProgramCache]: Analyzing trace with hash -1131874746, now seen corresponding path program 7 times [2024-10-11 14:07:26,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:07:26,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187989697] [2024-10-11 14:07:26,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:07:26,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:07:26,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:07:27,582 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 20 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:07:27,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:07:27,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [187989697] [2024-10-11 14:07:27,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [187989697] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:07:27,583 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [830557047] [2024-10-11 14:07:27,583 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-11 14:07:27,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:07:27,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:07:27,585 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:07:27,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 14:07:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:07:27,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-10-11 14:07:27,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:07:27,743 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-11 14:07:27,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 14:07:27,810 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-10-11 14:07:27,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 14:07:27,849 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-10-11 14:07:27,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 14:07:27,891 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-10-11 14:07:27,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 14:07:27,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-10-11 14:07:27,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 14:07:27,985 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-10-11 14:07:28,041 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-10-11 14:07:28,042 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 11 [2024-10-11 14:07:28,100 INFO L349 Elim1Store]: treesize reduction 23, result has 23.3 percent of original size [2024-10-11 14:07:28,100 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 11 [2024-10-11 14:07:28,131 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 36 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 14:07:28,131 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 14:08:25,011 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_189 Int) (v_ArrVal_188 Int) (v_ArrVal_185 Int) (|v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1_83| Int) (v_ArrVal_183 Int) (|v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1_81| Int) (|v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1_82| Int)) (or (< |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1_83| (+ |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1| 1)) (= (select (select (store |c_#memory_int#2| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.base| (store (store (store (store (select |c_#memory_int#2| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.base|) (+ |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.offset| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1|) v_ArrVal_183) (+ |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1_83| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.offset|) v_ArrVal_185) (+ |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1_82| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.offset|) v_ArrVal_188) (+ |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1_81| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.offset|) v_ArrVal_189)) c_~v~0.base) c_~v~0.offset) 66) (< |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1_82| (+ |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1_83| 1)) (< |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1_81| (+ |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1_82| 1)))) is different from false [2024-10-11 14:08:29,070 WARN L851 $PredicateComparison]: unable to prove that (forall ((|v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1_84| Int)) (or (forall ((v_ArrVal_189 Int) (v_ArrVal_188 Int) (v_ArrVal_185 Int) (|v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1_83| Int) (v_ArrVal_183 Int) (|v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1_81| Int) (|v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1_82| Int)) (or (= 66 (select (select (store |c_#memory_int#2| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.base| (store (store (store (store (select |c_#memory_int#2| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.base|) (+ |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1_84| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.offset|) v_ArrVal_183) (+ |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1_83| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.offset|) v_ArrVal_185) (+ |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1_82| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.offset|) v_ArrVal_188) (+ |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1_81| |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_dest#1.offset|) v_ArrVal_189)) c_~v~0.base) c_~v~0.offset)) (< |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1_83| (+ |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1_84| 1)) (< |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1_82| (+ |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1_83| 1)) (< |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1_81| (+ |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1_82| 1)))) (< |v_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1_84| (+ |c_thread2Thread1of1ForFork0_#Ultimate.C_strcpy_#t~offset11#1| 1)))) is different from false