./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dbd0a32f8466e9a1ac86b6dfec2b7453fe6f40d8d953742d93d3d05c5ad7b7af --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 06:42:57,783 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 06:42:57,842 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-09 06:42:57,851 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 06:42:57,851 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 06:42:57,869 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 06:42:57,870 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 06:42:57,870 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 06:42:57,870 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 06:42:57,870 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 06:42:57,870 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 06:42:57,870 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 06:42:57,873 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 06:42:57,873 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 06:42:57,873 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 06:42:57,873 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 06:42:57,874 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-09 06:42:57,874 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 06:42:57,874 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 06:42:57,874 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 06:42:57,874 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 06:42:57,874 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-09 06:42:57,874 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 06:42:57,875 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-09 06:42:57,875 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-09 06:42:57,875 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 06:42:57,875 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 06:42:57,875 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-09 06:42:57,875 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 06:42:57,875 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 06:42:57,875 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 06:42:57,875 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 06:42:57,876 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 06:42:57,876 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 06:42:57,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:42:57,876 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 06:42:57,876 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 06:42:57,876 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-09 06:42:57,876 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-09 06:42:57,876 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 06:42:57,876 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 06:42:57,876 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 06:42:57,876 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 06:42:57,876 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 06:42:57,877 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 06:42:57,877 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbd0a32f8466e9a1ac86b6dfec2b7453fe6f40d8d953742d93d3d05c5ad7b7af [2025-03-09 06:42:58,138 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 06:42:58,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 06:42:58,147 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 06:42:58,147 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 06:42:58,148 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 06:42:58,150 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c [2025-03-09 06:42:59,343 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f24b000fb/fd632da4d3ac45b996b5675dc1cedeba/FLAG0e4144092 [2025-03-09 06:42:59,583 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 06:42:59,584 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c [2025-03-09 06:42:59,592 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f24b000fb/fd632da4d3ac45b996b5675dc1cedeba/FLAG0e4144092 [2025-03-09 06:42:59,928 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f24b000fb/fd632da4d3ac45b996b5675dc1cedeba [2025-03-09 06:42:59,932 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 06:42:59,934 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 06:42:59,936 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 06:42:59,937 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 06:42:59,941 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 06:42:59,942 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:42:59" (1/1) ... [2025-03-09 06:42:59,943 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@75c8be21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:42:59, skipping insertion in model container [2025-03-09 06:42:59,943 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 06:42:59" (1/1) ... [2025-03-09 06:42:59,956 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 06:43:00,082 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:43:00,091 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 06:43:00,110 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 06:43:00,127 INFO L204 MainTranslator]: Completed translation [2025-03-09 06:43:00,127 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:43:00 WrapperNode [2025-03-09 06:43:00,128 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 06:43:00,129 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 06:43:00,129 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 06:43:00,130 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 06:43:00,134 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:43:00" (1/1) ... [2025-03-09 06:43:00,142 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:43:00" (1/1) ... [2025-03-09 06:43:00,155 INFO L138 Inliner]: procedures = 23, calls = 29, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 89 [2025-03-09 06:43:00,156 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 06:43:00,156 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 06:43:00,156 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 06:43:00,156 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 06:43:00,162 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:43:00" (1/1) ... [2025-03-09 06:43:00,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:43:00" (1/1) ... [2025-03-09 06:43:00,164 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:43:00" (1/1) ... [2025-03-09 06:43:00,179 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2025-03-09 06:43:00,179 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:43:00" (1/1) ... [2025-03-09 06:43:00,180 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:43:00" (1/1) ... [2025-03-09 06:43:00,186 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:43:00" (1/1) ... [2025-03-09 06:43:00,190 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:43:00" (1/1) ... [2025-03-09 06:43:00,191 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:43:00" (1/1) ... [2025-03-09 06:43:00,195 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:43:00" (1/1) ... [2025-03-09 06:43:00,197 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 06:43:00,197 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 06:43:00,197 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 06:43:00,197 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 06:43:00,198 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:43:00" (1/1) ... [2025-03-09 06:43:00,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 06:43:00,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:43:00,228 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-09 06:43:00,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-09 06:43:00,248 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 06:43:00,248 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2025-03-09 06:43:00,248 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2025-03-09 06:43:00,248 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2025-03-09 06:43:00,248 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2025-03-09 06:43:00,248 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2025-03-09 06:43:00,249 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2025-03-09 06:43:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 06:43:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-09 06:43:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-09 06:43:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-09 06:43:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-03-09 06:43:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-03-09 06:43:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-03-09 06:43:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 06:43:00,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 06:43:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-09 06:43:00,249 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-09 06:43:00,250 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 06:43:00,334 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 06:43:00,336 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 06:43:00,540 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 06:43:00,540 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 06:43:00,681 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 06:43:00,681 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 06:43:00,682 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:43:00 BoogieIcfgContainer [2025-03-09 06:43:00,682 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 06:43:00,684 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 06:43:00,684 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 06:43:00,688 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 06:43:00,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 06:42:59" (1/3) ... [2025-03-09 06:43:00,689 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e92c58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:43:00, skipping insertion in model container [2025-03-09 06:43:00,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 06:43:00" (2/3) ... [2025-03-09 06:43:00,689 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11e92c58 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 06:43:00, skipping insertion in model container [2025-03-09 06:43:00,689 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:43:00" (3/3) ... [2025-03-09 06:43:00,690 INFO L128 eAbstractionObserver]: Analyzing ICFG popl20-more-min-le-max.wvr.c [2025-03-09 06:43:00,704 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 06:43:00,706 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG popl20-more-min-le-max.wvr.c that has 4 procedures, 39 locations, 1 initial locations, 3 loop locations, and 6 error locations. [2025-03-09 06:43:00,706 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 06:43:00,764 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-03-09 06:43:00,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 48 places, 41 transitions, 103 flow [2025-03-09 06:43:00,821 INFO L124 PetriNetUnfolderBase]: 3/38 cut-off events. [2025-03-09 06:43:00,823 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-03-09 06:43:00,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 38 events. 3/38 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 84 event pairs, 0 based on Foata normal form. 0/29 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2025-03-09 06:43:00,826 INFO L82 GeneralOperation]: Start removeDead. Operand has 48 places, 41 transitions, 103 flow [2025-03-09 06:43:00,829 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 42 places, 35 transitions, 82 flow [2025-03-09 06:43:00,835 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 06:43:00,844 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;@5e7b805f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 06:43:00,845 INFO L334 AbstractCegarLoop]: Starting to check reachability of 13 error locations. [2025-03-09 06:43:00,848 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 06:43:00,849 INFO L124 PetriNetUnfolderBase]: 1/5 cut-off events. [2025-03-09 06:43:00,849 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 06:43:00,849 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:43:00,849 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-03-09 06:43:00,850 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:43:00,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:43:00,854 INFO L85 PathProgramCache]: Analyzing trace with hash 349582, now seen corresponding path program 1 times [2025-03-09 06:43:00,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:43:00,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [756159616] [2025-03-09 06:43:00,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:43:00,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:43:00,926 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-03-09 06:43:00,943 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-03-09 06:43:00,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:43:00,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:43:01,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:43:01,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:43:01,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [756159616] [2025-03-09 06:43:01,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [756159616] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:43:01,081 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:43:01,081 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:43:01,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541489372] [2025-03-09 06:43:01,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:43:01,088 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:43:01,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:43:01,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:43:01,110 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:43:01,121 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2025-03-09 06:43:01,123 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 35 transitions, 82 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:43:01,124 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:43:01,124 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2025-03-09 06:43:01,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:43:01,312 INFO L124 PetriNetUnfolderBase]: 303/522 cut-off events. [2025-03-09 06:43:01,313 INFO L125 PetriNetUnfolderBase]: For 35/35 co-relation queries the response was YES. [2025-03-09 06:43:01,319 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1039 conditions, 522 events. 303/522 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2276 event pairs, 232 based on Foata normal form. 1/478 useless extension candidates. Maximal degree in co-relation 934. Up to 457 conditions per place. [2025-03-09 06:43:01,325 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 22 selfloop transitions, 4 changer transitions 0/38 dead transitions. [2025-03-09 06:43:01,325 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 38 transitions, 140 flow [2025-03-09 06:43:01,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:43:01,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:43:01,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 88 transitions. [2025-03-09 06:43:01,338 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5365853658536586 [2025-03-09 06:43:01,339 INFO L175 Difference]: Start difference. First operand has 42 places, 35 transitions, 82 flow. Second operand 4 states and 88 transitions. [2025-03-09 06:43:01,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 38 transitions, 140 flow [2025-03-09 06:43:01,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 38 transitions, 134 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-03-09 06:43:01,353 INFO L231 Difference]: Finished difference. Result has 43 places, 38 transitions, 105 flow [2025-03-09 06:43:01,358 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=105, PETRI_PLACES=43, PETRI_TRANSITIONS=38} [2025-03-09 06:43:01,360 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 1 predicate places. [2025-03-09 06:43:01,365 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 38 transitions, 105 flow [2025-03-09 06:43:01,365 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:43:01,365 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:43:01,365 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2025-03-09 06:43:01,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 06:43:01,365 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:43:01,366 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:43:01,366 INFO L85 PathProgramCache]: Analyzing trace with hash 1824760458, now seen corresponding path program 1 times [2025-03-09 06:43:01,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:43:01,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952024749] [2025-03-09 06:43:01,366 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:43:01,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:43:01,384 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:43:01,400 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:43:01,400 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:43:01,400 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:43:01,523 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:43:01,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:43:01,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952024749] [2025-03-09 06:43:01,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952024749] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:43:01,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791389212] [2025-03-09 06:43:01,523 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:43:01,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:43:01,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:43:01,528 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:43:01,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-03-09 06:43:01,571 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-03-09 06:43:01,582 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-03-09 06:43:01,582 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:43:01,582 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:43:01,584 INFO L256 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:43:01,586 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:43:01,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:43:01,627 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-03-09 06:43:01,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791389212] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:43:01,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2025-03-09 06:43:01,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2025-03-09 06:43:01,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847150613] [2025-03-09 06:43:01,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:43:01,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-09 06:43:01,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:43:01,629 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-09 06:43:01,629 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2025-03-09 06:43:01,638 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2025-03-09 06:43:01,639 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 38 transitions, 105 flow. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:43:01,639 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:43:01,639 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2025-03-09 06:43:01,639 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:43:01,766 INFO L124 PetriNetUnfolderBase]: 303/521 cut-off events. [2025-03-09 06:43:01,767 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-09 06:43:01,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1035 conditions, 521 events. 303/521 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 2276 event pairs, 232 based on Foata normal form. 1/478 useless extension candidates. Maximal degree in co-relation 1008. Up to 452 conditions per place. [2025-03-09 06:43:01,772 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 18 selfloop transitions, 7 changer transitions 0/37 dead transitions. [2025-03-09 06:43:01,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 37 transitions, 151 flow [2025-03-09 06:43:01,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-09 06:43:01,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-09 06:43:01,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 116 transitions. [2025-03-09 06:43:01,774 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4715447154471545 [2025-03-09 06:43:01,774 INFO L175 Difference]: Start difference. First operand has 43 places, 38 transitions, 105 flow. Second operand 6 states and 116 transitions. [2025-03-09 06:43:01,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 37 transitions, 151 flow [2025-03-09 06:43:01,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 37 transitions, 148 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:43:01,775 INFO L231 Difference]: Finished difference. Result has 46 places, 37 transitions, 112 flow [2025-03-09 06:43:01,775 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=98, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=112, PETRI_PLACES=46, PETRI_TRANSITIONS=37} [2025-03-09 06:43:01,776 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 4 predicate places. [2025-03-09 06:43:01,776 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 37 transitions, 112 flow [2025-03-09 06:43:01,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:43:01,776 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:43:01,777 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1] [2025-03-09 06:43:01,784 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2025-03-09 06:43:01,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:43:01,981 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:43:01,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:43:01,982 INFO L85 PathProgramCache]: Analyzing trace with hash 732999648, now seen corresponding path program 1 times [2025-03-09 06:43:01,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:43:01,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168564434] [2025-03-09 06:43:01,982 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:43:01,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:43:01,988 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 06:43:01,997 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 06:43:01,997 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:43:01,997 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:43:02,103 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:43:02,104 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:43:02,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168564434] [2025-03-09 06:43:02,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168564434] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:43:02,104 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619807677] [2025-03-09 06:43:02,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:43:02,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:43:02,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:43:02,107 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:43:02,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-03-09 06:43:02,168 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 06:43:02,180 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 06:43:02,180 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:43:02,180 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:43:02,181 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:43:02,181 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:43:02,211 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:43:02,211 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:43:02,251 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:43:02,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619807677] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:43:02,252 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:43:02,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2025-03-09 06:43:02,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353773901] [2025-03-09 06:43:02,253 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:43:02,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 06:43:02,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:43:02,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 06:43:02,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-09 06:43:02,268 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2025-03-09 06:43:02,268 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 37 transitions, 112 flow. Second operand has 12 states, 12 states have (on average 16.083333333333332) internal successors, (193), 12 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:43:02,270 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:43:02,270 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2025-03-09 06:43:02,270 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:43:02,411 INFO L124 PetriNetUnfolderBase]: 306/533 cut-off events. [2025-03-09 06:43:02,411 INFO L125 PetriNetUnfolderBase]: For 23/23 co-relation queries the response was YES. [2025-03-09 06:43:02,416 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1079 conditions, 533 events. 306/533 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 48. Compared 2357 event pairs, 232 based on Foata normal form. 3/490 useless extension candidates. Maximal degree in co-relation 1009. Up to 459 conditions per place. [2025-03-09 06:43:02,418 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 21 selfloop transitions, 13 changer transitions 0/46 dead transitions. [2025-03-09 06:43:02,418 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 46 transitions, 234 flow [2025-03-09 06:43:02,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 06:43:02,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-09 06:43:02,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 187 transitions. [2025-03-09 06:43:02,420 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4560975609756098 [2025-03-09 06:43:02,420 INFO L175 Difference]: Start difference. First operand has 46 places, 37 transitions, 112 flow. Second operand 10 states and 187 transitions. [2025-03-09 06:43:02,420 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 46 transitions, 234 flow [2025-03-09 06:43:02,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 46 transitions, 188 flow, removed 8 selfloop flow, removed 5 redundant places. [2025-03-09 06:43:02,421 INFO L231 Difference]: Finished difference. Result has 53 places, 46 transitions, 164 flow [2025-03-09 06:43:02,421 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=90, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=164, PETRI_PLACES=53, PETRI_TRANSITIONS=46} [2025-03-09 06:43:02,423 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 11 predicate places. [2025-03-09 06:43:02,423 INFO L471 AbstractCegarLoop]: Abstraction has has 53 places, 46 transitions, 164 flow [2025-03-09 06:43:02,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 16.083333333333332) internal successors, (193), 12 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:43:02,424 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:43:02,424 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:43:02,430 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2025-03-09 06:43:02,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2025-03-09 06:43:02,625 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:43:02,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:43:02,625 INFO L85 PathProgramCache]: Analyzing trace with hash -490948912, now seen corresponding path program 1 times [2025-03-09 06:43:02,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:43:02,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1822284622] [2025-03-09 06:43:02,625 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:43:02,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:43:02,630 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-09 06:43:02,636 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-09 06:43:02,639 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:43:02,639 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:43:02,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:43:02,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:43:02,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1822284622] [2025-03-09 06:43:02,665 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1822284622] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:43:02,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:43:02,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:43:02,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808668224] [2025-03-09 06:43:02,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:43:02,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:43:02,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:43:02,666 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:43:02,667 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:43:02,686 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2025-03-09 06:43:02,687 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 46 transitions, 164 flow. Second operand has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:43:02,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:43:02,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2025-03-09 06:43:02,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:43:02,877 INFO L124 PetriNetUnfolderBase]: 760/1278 cut-off events. [2025-03-09 06:43:02,878 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2025-03-09 06:43:02,880 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2542 conditions, 1278 events. 760/1278 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 6162 event pairs, 327 based on Foata normal form. 34/1239 useless extension candidates. Maximal degree in co-relation 2508. Up to 812 conditions per place. [2025-03-09 06:43:02,885 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 58 selfloop transitions, 4 changer transitions 0/72 dead transitions. [2025-03-09 06:43:02,885 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 72 transitions, 348 flow [2025-03-09 06:43:02,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:43:02,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:43:02,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 108 transitions. [2025-03-09 06:43:02,886 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6585365853658537 [2025-03-09 06:43:02,886 INFO L175 Difference]: Start difference. First operand has 53 places, 46 transitions, 164 flow. Second operand 4 states and 108 transitions. [2025-03-09 06:43:02,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 72 transitions, 348 flow [2025-03-09 06:43:02,888 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 72 transitions, 337 flow, removed 3 selfloop flow, removed 2 redundant places. [2025-03-09 06:43:02,889 INFO L231 Difference]: Finished difference. Result has 56 places, 49 transitions, 182 flow [2025-03-09 06:43:02,889 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=182, PETRI_PLACES=56, PETRI_TRANSITIONS=49} [2025-03-09 06:43:02,890 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 14 predicate places. [2025-03-09 06:43:02,890 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 49 transitions, 182 flow [2025-03-09 06:43:02,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.75) internal successors, (63), 4 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:43:02,890 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:43:02,890 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:43:02,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 06:43:02,890 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:43:02,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:43:02,891 INFO L85 PathProgramCache]: Analyzing trace with hash 78841272, now seen corresponding path program 1 times [2025-03-09 06:43:02,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:43:02,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426648658] [2025-03-09 06:43:02,891 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:43:02,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:43:02,897 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-09 06:43:02,903 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-09 06:43:02,904 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:43:02,904 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:43:02,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:43:02,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:43:02,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426648658] [2025-03-09 06:43:02,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426648658] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:43:02,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:43:02,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-09 06:43:02,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1981955868] [2025-03-09 06:43:02,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:43:02,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:43:02,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:43:02,953 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:43:02,953 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:43:02,960 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2025-03-09 06:43:02,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 49 transitions, 182 flow. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:43:02,960 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:43:02,960 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2025-03-09 06:43:02,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:43:03,160 INFO L124 PetriNetUnfolderBase]: 1221/1965 cut-off events. [2025-03-09 06:43:03,161 INFO L125 PetriNetUnfolderBase]: For 614/842 co-relation queries the response was YES. [2025-03-09 06:43:03,164 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4474 conditions, 1965 events. 1221/1965 cut-off events. For 614/842 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 10087 event pairs, 653 based on Foata normal form. 128/2005 useless extension candidates. Maximal degree in co-relation 4438. Up to 1257 conditions per place. [2025-03-09 06:43:03,171 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 62 selfloop transitions, 4 changer transitions 0/77 dead transitions. [2025-03-09 06:43:03,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 77 transitions, 402 flow [2025-03-09 06:43:03,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:43:03,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:43:03,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 106 transitions. [2025-03-09 06:43:03,173 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6463414634146342 [2025-03-09 06:43:03,173 INFO L175 Difference]: Start difference. First operand has 56 places, 49 transitions, 182 flow. Second operand 4 states and 106 transitions. [2025-03-09 06:43:03,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 77 transitions, 402 flow [2025-03-09 06:43:03,175 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 77 transitions, 393 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:43:03,177 INFO L231 Difference]: Finished difference. Result has 60 places, 52 transitions, 208 flow [2025-03-09 06:43:03,177 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=179, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=208, PETRI_PLACES=60, PETRI_TRANSITIONS=52} [2025-03-09 06:43:03,178 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 18 predicate places. [2025-03-09 06:43:03,179 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 52 transitions, 208 flow [2025-03-09 06:43:03,179 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:43:03,179 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:43:03,179 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:43:03,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-09 06:43:03,179 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:43:03,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:43:03,180 INFO L85 PathProgramCache]: Analyzing trace with hash 2041265039, now seen corresponding path program 1 times [2025-03-09 06:43:03,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:43:03,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1939337115] [2025-03-09 06:43:03,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:43:03,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:43:03,186 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-09 06:43:03,192 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-09 06:43:03,194 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:43:03,194 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:43:03,265 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2025-03-09 06:43:03,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:43:03,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1939337115] [2025-03-09 06:43:03,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1939337115] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 06:43:03,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 06:43:03,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 06:43:03,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653668110] [2025-03-09 06:43:03,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 06:43:03,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 06:43:03,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:43:03,266 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 06:43:03,266 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 06:43:03,272 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 41 [2025-03-09 06:43:03,272 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 52 transitions, 208 flow. Second operand has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:43:03,272 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:43:03,272 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 41 [2025-03-09 06:43:03,272 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:43:03,402 INFO L124 PetriNetUnfolderBase]: 760/1237 cut-off events. [2025-03-09 06:43:03,402 INFO L125 PetriNetUnfolderBase]: For 610/816 co-relation queries the response was YES. [2025-03-09 06:43:03,404 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3127 conditions, 1237 events. 760/1237 cut-off events. For 610/816 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 6026 event pairs, 554 based on Foata normal form. 73/1229 useless extension candidates. Maximal degree in co-relation 3096. Up to 1088 conditions per place. [2025-03-09 06:43:03,409 INFO L140 encePairwiseOnDemand]: 38/41 looper letters, 34 selfloop transitions, 2 changer transitions 0/51 dead transitions. [2025-03-09 06:43:03,410 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 51 transitions, 277 flow [2025-03-09 06:43:03,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 06:43:03,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 06:43:03,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2025-03-09 06:43:03,414 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6097560975609756 [2025-03-09 06:43:03,414 INFO L175 Difference]: Start difference. First operand has 60 places, 52 transitions, 208 flow. Second operand 3 states and 75 transitions. [2025-03-09 06:43:03,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 51 transitions, 277 flow [2025-03-09 06:43:03,416 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 51 transitions, 274 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-09 06:43:03,417 INFO L231 Difference]: Finished difference. Result has 61 places, 51 transitions, 206 flow [2025-03-09 06:43:03,417 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=61, PETRI_TRANSITIONS=51} [2025-03-09 06:43:03,417 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 19 predicate places. [2025-03-09 06:43:03,417 INFO L471 AbstractCegarLoop]: Abstraction has has 61 places, 51 transitions, 206 flow [2025-03-09 06:43:03,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.0) internal successors, (57), 3 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:43:03,418 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:43:03,418 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1] [2025-03-09 06:43:03,418 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-09 06:43:03,418 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:43:03,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:43:03,418 INFO L85 PathProgramCache]: Analyzing trace with hash 1345568860, now seen corresponding path program 2 times [2025-03-09 06:43:03,419 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:43:03,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503300984] [2025-03-09 06:43:03,419 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:43:03,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:43:03,426 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-03-09 06:43:03,431 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-03-09 06:43:03,434 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 06:43:03,434 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:43:03,495 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-09 06:43:03,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:43:03,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503300984] [2025-03-09 06:43:03,495 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503300984] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:43:03,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1589016208] [2025-03-09 06:43:03,495 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:43:03,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:43:03,496 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:43:03,498 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:43:03,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-03-09 06:43:03,542 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 16 statements into 2 equivalence classes. [2025-03-09 06:43:03,549 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 4 of 16 statements. [2025-03-09 06:43:03,549 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 06:43:03,550 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:43:03,550 INFO L256 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 6 conjuncts are in the unsatisfiable core [2025-03-09 06:43:03,551 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:43:03,575 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-09 06:43:03,576 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:43:03,605 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2025-03-09 06:43:03,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1589016208] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:43:03,606 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:43:03,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [2, 2, 2] total 2 [2025-03-09 06:43:03,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512765365] [2025-03-09 06:43:03,607 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:43:03,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 06:43:03,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:43:03,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 06:43:03,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 06:43:03,616 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 41 [2025-03-09 06:43:03,616 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 51 transitions, 206 flow. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:43:03,616 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:43:03,616 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 41 [2025-03-09 06:43:03,616 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:43:03,742 INFO L124 PetriNetUnfolderBase]: 760/1236 cut-off events. [2025-03-09 06:43:03,742 INFO L125 PetriNetUnfolderBase]: For 519/725 co-relation queries the response was YES. [2025-03-09 06:43:03,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3022 conditions, 1236 events. 760/1236 cut-off events. For 519/725 co-relation queries the response was YES. Maximal size of possible extension queue 71. Compared 5989 event pairs, 554 based on Foata normal form. 73/1228 useless extension candidates. Maximal degree in co-relation 2998. Up to 1079 conditions per place. [2025-03-09 06:43:03,751 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 21 selfloop transitions, 15 changer transitions 0/50 dead transitions. [2025-03-09 06:43:03,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 50 transitions, 268 flow [2025-03-09 06:43:03,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 06:43:03,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 06:43:03,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2025-03-09 06:43:03,752 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5 [2025-03-09 06:43:03,752 INFO L175 Difference]: Start difference. First operand has 61 places, 51 transitions, 206 flow. Second operand 4 states and 82 transitions. [2025-03-09 06:43:03,752 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 50 transitions, 268 flow [2025-03-09 06:43:03,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 50 transitions, 254 flow, removed 1 selfloop flow, removed 6 redundant places. [2025-03-09 06:43:03,755 INFO L231 Difference]: Finished difference. Result has 57 places, 50 transitions, 212 flow [2025-03-09 06:43:03,756 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=212, PETRI_PLACES=57, PETRI_TRANSITIONS=50} [2025-03-09 06:43:03,757 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 15 predicate places. [2025-03-09 06:43:03,757 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 50 transitions, 212 flow [2025-03-09 06:43:03,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:43:03,757 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:43:03,757 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:43:03,766 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-03-09 06:43:03,959 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:43:03,960 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:43:03,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:43:03,960 INFO L85 PathProgramCache]: Analyzing trace with hash 119176587, now seen corresponding path program 1 times [2025-03-09 06:43:03,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:43:03,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860942593] [2025-03-09 06:43:03,960 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:43:03,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:43:03,969 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-09 06:43:03,977 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-09 06:43:03,977 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:43:03,978 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:43:04,054 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 06:43:04,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:43:04,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860942593] [2025-03-09 06:43:04,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [860942593] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:43:04,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109903509] [2025-03-09 06:43:04,055 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:43:04,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:43:04,055 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:43:04,057 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:43:04,059 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-03-09 06:43:04,101 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 16 statements into 1 equivalence classes. [2025-03-09 06:43:04,113 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 16 of 16 statements. [2025-03-09 06:43:04,113 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:43:04,113 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:43:04,114 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-09 06:43:04,115 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:43:04,219 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:43:04,219 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:43:04,333 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:43:04,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109903509] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:43:04,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:43:04,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 19 [2025-03-09 06:43:04,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [578987032] [2025-03-09 06:43:04,334 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:43:04,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-09 06:43:04,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:43:04,335 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-09 06:43:04,335 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2025-03-09 06:43:04,445 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2025-03-09 06:43:04,445 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 50 transitions, 212 flow. Second operand has 19 states, 19 states have (on average 13.0) internal successors, (247), 19 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:43:04,445 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:43:04,445 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2025-03-09 06:43:04,445 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:43:05,116 INFO L124 PetriNetUnfolderBase]: 2137/3402 cut-off events. [2025-03-09 06:43:05,116 INFO L125 PetriNetUnfolderBase]: For 1226/1530 co-relation queries the response was YES. [2025-03-09 06:43:05,122 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8372 conditions, 3402 events. 2137/3402 cut-off events. For 1226/1530 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 18730 event pairs, 390 based on Foata normal form. 210/3512 useless extension candidates. Maximal degree in co-relation 4990. Up to 536 conditions per place. [2025-03-09 06:43:05,138 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 124 selfloop transitions, 23 changer transitions 8/164 dead transitions. [2025-03-09 06:43:05,138 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 164 transitions, 874 flow [2025-03-09 06:43:05,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-09 06:43:05,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-09 06:43:05,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 287 transitions. [2025-03-09 06:43:05,140 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5 [2025-03-09 06:43:05,140 INFO L175 Difference]: Start difference. First operand has 57 places, 50 transitions, 212 flow. Second operand 14 states and 287 transitions. [2025-03-09 06:43:05,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 164 transitions, 874 flow [2025-03-09 06:43:05,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 164 transitions, 844 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-03-09 06:43:05,147 INFO L231 Difference]: Finished difference. Result has 67 places, 54 transitions, 250 flow [2025-03-09 06:43:05,147 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=250, PETRI_PLACES=67, PETRI_TRANSITIONS=54} [2025-03-09 06:43:05,147 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 25 predicate places. [2025-03-09 06:43:05,148 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 54 transitions, 250 flow [2025-03-09 06:43:05,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.0) internal successors, (247), 19 states have internal predecessors, (247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:43:05,148 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:43:05,148 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:43:05,159 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-03-09 06:43:05,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:43:05,349 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:43:05,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:43:05,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1232880020, now seen corresponding path program 1 times [2025-03-09 06:43:05,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:43:05,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687854715] [2025-03-09 06:43:05,350 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:43:05,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:43:05,361 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-09 06:43:05,370 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-09 06:43:05,370 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:43:05,370 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:43:05,445 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2025-03-09 06:43:05,445 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:43:05,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687854715] [2025-03-09 06:43:05,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687854715] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:43:05,445 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [783568250] [2025-03-09 06:43:05,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:43:05,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:43:05,446 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:43:05,449 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:43:05,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-03-09 06:43:05,501 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 18 statements into 1 equivalence classes. [2025-03-09 06:43:05,515 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 18 of 18 statements. [2025-03-09 06:43:05,515 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:43:05,515 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:43:05,516 INFO L256 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 10 conjuncts are in the unsatisfiable core [2025-03-09 06:43:05,518 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:43:05,634 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:43:05,634 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:43:05,755 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 06:43:05,755 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [783568250] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:43:05,755 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:43:05,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 19 [2025-03-09 06:43:05,756 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370275004] [2025-03-09 06:43:05,756 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:43:05,756 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-03-09 06:43:05,756 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:43:05,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-03-09 06:43:05,757 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2025-03-09 06:43:05,867 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 41 [2025-03-09 06:43:05,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 54 transitions, 250 flow. Second operand has 19 states, 19 states have (on average 13.210526315789474) internal successors, (251), 19 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:43:05,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:43:05,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 41 [2025-03-09 06:43:05,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:43:06,433 INFO L124 PetriNetUnfolderBase]: 2204/3505 cut-off events. [2025-03-09 06:43:06,434 INFO L125 PetriNetUnfolderBase]: For 2864/2949 co-relation queries the response was YES. [2025-03-09 06:43:06,440 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9435 conditions, 3505 events. 2204/3505 cut-off events. For 2864/2949 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 19384 event pairs, 387 based on Foata normal form. 105/3522 useless extension candidates. Maximal degree in co-relation 6530. Up to 635 conditions per place. [2025-03-09 06:43:06,452 INFO L140 encePairwiseOnDemand]: 31/41 looper letters, 81 selfloop transitions, 17 changer transitions 52/158 dead transitions. [2025-03-09 06:43:06,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 158 transitions, 947 flow [2025-03-09 06:43:06,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-03-09 06:43:06,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2025-03-09 06:43:06,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 280 transitions. [2025-03-09 06:43:06,456 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4878048780487805 [2025-03-09 06:43:06,456 INFO L175 Difference]: Start difference. First operand has 67 places, 54 transitions, 250 flow. Second operand 14 states and 280 transitions. [2025-03-09 06:43:06,456 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 158 transitions, 947 flow [2025-03-09 06:43:06,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 158 transitions, 854 flow, removed 11 selfloop flow, removed 7 redundant places. [2025-03-09 06:43:06,463 INFO L231 Difference]: Finished difference. Result has 73 places, 47 transitions, 216 flow [2025-03-09 06:43:06,463 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=216, PETRI_PLACES=73, PETRI_TRANSITIONS=47} [2025-03-09 06:43:06,464 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 31 predicate places. [2025-03-09 06:43:06,465 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 47 transitions, 216 flow [2025-03-09 06:43:06,465 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 13.210526315789474) internal successors, (251), 19 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:43:06,465 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:43:06,465 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2025-03-09 06:43:06,473 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-03-09 06:43:06,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:43:06,666 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:43:06,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:43:06,666 INFO L85 PathProgramCache]: Analyzing trace with hash -1141171957, now seen corresponding path program 1 times [2025-03-09 06:43:06,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:43:06,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [167160648] [2025-03-09 06:43:06,666 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:43:06,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:43:06,672 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-09 06:43:06,676 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-09 06:43:06,676 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:43:06,676 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:43:06,724 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-09 06:43:06,725 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:43:06,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [167160648] [2025-03-09 06:43:06,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [167160648] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:43:06,725 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [83984885] [2025-03-09 06:43:06,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:43:06,725 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:43:06,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:43:06,727 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:43:06,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-03-09 06:43:06,765 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 20 statements into 1 equivalence classes. [2025-03-09 06:43:06,776 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 20 of 20 statements. [2025-03-09 06:43:06,776 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:43:06,776 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:43:06,777 INFO L256 TraceCheckSpWp]: Trace formula consists of 123 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:43:06,778 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:43:06,805 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-09 06:43:06,805 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:43:06,838 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-09 06:43:06,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [83984885] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:43:06,839 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:43:06,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-03-09 06:43:06,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666017747] [2025-03-09 06:43:06,839 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:43:06,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 06:43:06,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:43:06,841 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 06:43:06,841 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-09 06:43:06,861 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2025-03-09 06:43:06,861 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 47 transitions, 216 flow. Second operand has 12 states, 12 states have (on average 15.916666666666666) internal successors, (191), 12 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:43:06,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:43:06,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2025-03-09 06:43:06,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:43:07,322 INFO L124 PetriNetUnfolderBase]: 2547/4326 cut-off events. [2025-03-09 06:43:07,322 INFO L125 PetriNetUnfolderBase]: For 3595/3714 co-relation queries the response was YES. [2025-03-09 06:43:07,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11543 conditions, 4326 events. 2547/4326 cut-off events. For 3595/3714 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 24976 event pairs, 798 based on Foata normal form. 174/4431 useless extension candidates. Maximal degree in co-relation 11470. Up to 1555 conditions per place. [2025-03-09 06:43:07,388 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 142 selfloop transitions, 13 changer transitions 0/164 dead transitions. [2025-03-09 06:43:07,389 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 164 transitions, 976 flow [2025-03-09 06:43:07,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 06:43:07,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-09 06:43:07,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 270 transitions. [2025-03-09 06:43:07,391 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6585365853658537 [2025-03-09 06:43:07,391 INFO L175 Difference]: Start difference. First operand has 73 places, 47 transitions, 216 flow. Second operand 10 states and 270 transitions. [2025-03-09 06:43:07,391 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 164 transitions, 976 flow [2025-03-09 06:43:07,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 164 transitions, 892 flow, removed 12 selfloop flow, removed 9 redundant places. [2025-03-09 06:43:07,400 INFO L231 Difference]: Finished difference. Result has 70 places, 56 transitions, 274 flow [2025-03-09 06:43:07,400 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=274, PETRI_PLACES=70, PETRI_TRANSITIONS=56} [2025-03-09 06:43:07,401 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 28 predicate places. [2025-03-09 06:43:07,401 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 56 transitions, 274 flow [2025-03-09 06:43:07,401 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 15.916666666666666) internal successors, (191), 12 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:43:07,401 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:43:07,401 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:43:07,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2025-03-09 06:43:07,602 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:43:07,602 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:43:07,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:43:07,603 INFO L85 PathProgramCache]: Analyzing trace with hash 533783891, now seen corresponding path program 1 times [2025-03-09 06:43:07,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:43:07,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356316538] [2025-03-09 06:43:07,603 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:43:07,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:43:07,608 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-09 06:43:07,614 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-09 06:43:07,614 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:43:07,614 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:43:07,661 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-09 06:43:07,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:43:07,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356316538] [2025-03-09 06:43:07,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356316538] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:43:07,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388828524] [2025-03-09 06:43:07,662 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 06:43:07,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:43:07,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:43:07,666 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:43:07,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-03-09 06:43:07,713 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 22 statements into 1 equivalence classes. [2025-03-09 06:43:07,730 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 22 of 22 statements. [2025-03-09 06:43:07,730 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 06:43:07,730 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:43:07,731 INFO L256 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-03-09 06:43:07,733 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:43:07,761 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-09 06:43:07,761 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:43:07,800 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2025-03-09 06:43:07,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388828524] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:43:07,800 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:43:07,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2025-03-09 06:43:07,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825735443] [2025-03-09 06:43:07,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:43:07,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2025-03-09 06:43:07,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:43:07,801 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2025-03-09 06:43:07,801 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2025-03-09 06:43:07,823 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 14 out of 41 [2025-03-09 06:43:07,824 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 56 transitions, 274 flow. Second operand has 12 states, 12 states have (on average 16.083333333333332) internal successors, (193), 12 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:43:07,824 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:43:07,824 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 14 of 41 [2025-03-09 06:43:07,824 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:43:08,497 INFO L124 PetriNetUnfolderBase]: 5211/8449 cut-off events. [2025-03-09 06:43:08,497 INFO L125 PetriNetUnfolderBase]: For 9728/10169 co-relation queries the response was YES. [2025-03-09 06:43:08,509 INFO L83 FinitePrefix]: Finished finitePrefix Result has 23411 conditions, 8449 events. 5211/8449 cut-off events. For 9728/10169 co-relation queries the response was YES. Maximal size of possible extension queue 198. Compared 51808 event pairs, 1476 based on Foata normal form. 330/8692 useless extension candidates. Maximal degree in co-relation 23343. Up to 2959 conditions per place. [2025-03-09 06:43:08,536 INFO L140 encePairwiseOnDemand]: 36/41 looper letters, 188 selfloop transitions, 13 changer transitions 0/213 dead transitions. [2025-03-09 06:43:08,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 213 transitions, 1486 flow [2025-03-09 06:43:08,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2025-03-09 06:43:08,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2025-03-09 06:43:08,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 262 transitions. [2025-03-09 06:43:08,538 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6390243902439025 [2025-03-09 06:43:08,538 INFO L175 Difference]: Start difference. First operand has 70 places, 56 transitions, 274 flow. Second operand 10 states and 262 transitions. [2025-03-09 06:43:08,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 213 transitions, 1486 flow [2025-03-09 06:43:08,547 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 213 transitions, 1403 flow, removed 27 selfloop flow, removed 2 redundant places. [2025-03-09 06:43:08,548 INFO L231 Difference]: Finished difference. Result has 80 places, 65 transitions, 349 flow [2025-03-09 06:43:08,548 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=349, PETRI_PLACES=80, PETRI_TRANSITIONS=65} [2025-03-09 06:43:08,549 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 38 predicate places. [2025-03-09 06:43:08,549 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 65 transitions, 349 flow [2025-03-09 06:43:08,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 16.083333333333332) internal successors, (193), 12 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:43:08,549 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:43:08,550 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1] [2025-03-09 06:43:08,556 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-03-09 06:43:08,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:43:08,754 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:43:08,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:43:08,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1320444970, now seen corresponding path program 2 times [2025-03-09 06:43:08,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:43:08,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [58090244] [2025-03-09 06:43:08,755 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:43:08,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:43:08,762 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 35 statements into 2 equivalence classes. [2025-03-09 06:43:08,767 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 9 of 35 statements. [2025-03-09 06:43:08,769 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 06:43:08,770 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:43:08,806 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-03-09 06:43:08,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:43:08,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [58090244] [2025-03-09 06:43:08,807 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [58090244] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:43:08,807 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152129870] [2025-03-09 06:43:08,807 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:43:08,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:43:08,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:43:08,809 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:43:08,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2025-03-09 06:43:08,847 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 35 statements into 2 equivalence classes. [2025-03-09 06:43:08,855 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 9 of 35 statements. [2025-03-09 06:43:08,855 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 06:43:08,855 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:43:08,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 06:43:08,857 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:43:08,884 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-03-09 06:43:08,885 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:43:08,925 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-03-09 06:43:08,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152129870] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:43:08,925 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:43:08,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2025-03-09 06:43:08,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838619315] [2025-03-09 06:43:08,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:43:08,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:43:08,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:43:08,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:43:08,927 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:43:08,936 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2025-03-09 06:43:08,936 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 65 transitions, 349 flow. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:43:08,936 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:43:08,936 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2025-03-09 06:43:08,936 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:43:09,724 INFO L124 PetriNetUnfolderBase]: 6151/10302 cut-off events. [2025-03-09 06:43:09,724 INFO L125 PetriNetUnfolderBase]: For 14516/14615 co-relation queries the response was YES. [2025-03-09 06:43:09,768 INFO L83 FinitePrefix]: Finished finitePrefix Result has 30006 conditions, 10302 events. 6151/10302 cut-off events. For 14516/14615 co-relation queries the response was YES. Maximal size of possible extension queue 230. Compared 64325 event pairs, 1712 based on Foata normal form. 106/10300 useless extension candidates. Maximal degree in co-relation 29934. Up to 3883 conditions per place. [2025-03-09 06:43:09,818 INFO L140 encePairwiseOnDemand]: 34/41 looper letters, 63 selfloop transitions, 14 changer transitions 15/103 dead transitions. [2025-03-09 06:43:09,818 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 103 transitions, 721 flow [2025-03-09 06:43:09,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:43:09,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:43:09,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 113 transitions. [2025-03-09 06:43:09,819 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.551219512195122 [2025-03-09 06:43:09,819 INFO L175 Difference]: Start difference. First operand has 80 places, 65 transitions, 349 flow. Second operand 5 states and 113 transitions. [2025-03-09 06:43:09,819 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 103 transitions, 721 flow [2025-03-09 06:43:09,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 103 transitions, 682 flow, removed 10 selfloop flow, removed 6 redundant places. [2025-03-09 06:43:09,842 INFO L231 Difference]: Finished difference. Result has 78 places, 60 transitions, 330 flow [2025-03-09 06:43:09,842 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=330, PETRI_PLACES=78, PETRI_TRANSITIONS=60} [2025-03-09 06:43:09,842 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 36 predicate places. [2025-03-09 06:43:09,842 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 60 transitions, 330 flow [2025-03-09 06:43:09,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:43:09,842 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 06:43:09,843 INFO L206 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 5, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:43:09,848 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2025-03-09 06:43:10,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2025-03-09 06:43:10,047 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 10 more)] === [2025-03-09 06:43:10,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 06:43:10,047 INFO L85 PathProgramCache]: Analyzing trace with hash 827906827, now seen corresponding path program 2 times [2025-03-09 06:43:10,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 06:43:10,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975462138] [2025-03-09 06:43:10,048 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:43:10,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 06:43:10,056 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 37 statements into 2 equivalence classes. [2025-03-09 06:43:10,063 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 11 of 37 statements. [2025-03-09 06:43:10,064 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 06:43:10,064 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:43:10,108 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-03-09 06:43:10,108 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 06:43:10,108 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975462138] [2025-03-09 06:43:10,109 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975462138] provided 0 perfect and 1 imperfect interpolant sequences [2025-03-09 06:43:10,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76499450] [2025-03-09 06:43:10,109 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-03-09 06:43:10,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-03-09 06:43:10,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 06:43:10,114 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-03-09 06:43:10,115 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2025-03-09 06:43:10,159 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 37 statements into 2 equivalence classes. [2025-03-09 06:43:10,170 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) and asserted 11 of 37 statements. [2025-03-09 06:43:10,170 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2025-03-09 06:43:10,170 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 06:43:10,171 INFO L256 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-03-09 06:43:10,172 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-03-09 06:43:10,217 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-03-09 06:43:10,217 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-03-09 06:43:10,266 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2025-03-09 06:43:10,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76499450] provided 0 perfect and 2 imperfect interpolant sequences [2025-03-09 06:43:10,266 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-03-09 06:43:10,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2025-03-09 06:43:10,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958371816] [2025-03-09 06:43:10,267 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-03-09 06:43:10,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-09 06:43:10,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 06:43:10,267 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-09 06:43:10,267 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2025-03-09 06:43:10,278 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 41 [2025-03-09 06:43:10,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 60 transitions, 330 flow. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:43:10,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 06:43:10,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 41 [2025-03-09 06:43:10,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 06:43:10,814 INFO L124 PetriNetUnfolderBase]: 5391/8347 cut-off events. [2025-03-09 06:43:10,814 INFO L125 PetriNetUnfolderBase]: For 16588/16920 co-relation queries the response was YES. [2025-03-09 06:43:10,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 24422 conditions, 8347 events. 5391/8347 cut-off events. For 16588/16920 co-relation queries the response was YES. Maximal size of possible extension queue 202. Compared 48649 event pairs, 1226 based on Foata normal form. 110/8418 useless extension candidates. Maximal degree in co-relation 24351. Up to 4015 conditions per place. [2025-03-09 06:43:10,836 INFO L140 encePairwiseOnDemand]: 35/41 looper letters, 0 selfloop transitions, 0 changer transitions 96/96 dead transitions. [2025-03-09 06:43:10,836 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 96 transitions, 694 flow [2025-03-09 06:43:10,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-09 06:43:10,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-09 06:43:10,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 109 transitions. [2025-03-09 06:43:10,841 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5317073170731708 [2025-03-09 06:43:10,842 INFO L175 Difference]: Start difference. First operand has 78 places, 60 transitions, 330 flow. Second operand 5 states and 109 transitions. [2025-03-09 06:43:10,842 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 96 transitions, 694 flow [2025-03-09 06:43:10,863 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 96 transitions, 651 flow, removed 1 selfloop flow, removed 7 redundant places. [2025-03-09 06:43:10,864 INFO L231 Difference]: Finished difference. Result has 72 places, 0 transitions, 0 flow [2025-03-09 06:43:10,864 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=41, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=72, PETRI_TRANSITIONS=0} [2025-03-09 06:43:10,865 INFO L279 CegarLoopForPetriNet]: 42 programPoint places, 30 predicate places. [2025-03-09 06:43:10,865 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 0 transitions, 0 flow [2025-03-09 06:43:10,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-09 06:43:10,868 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 13 remaining) [2025-03-09 06:43:10,869 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 13 remaining) [2025-03-09 06:43:10,869 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 13 remaining) [2025-03-09 06:43:10,869 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 13 remaining) [2025-03-09 06:43:10,869 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 13 remaining) [2025-03-09 06:43:10,869 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 13 remaining) [2025-03-09 06:43:10,869 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 13 remaining) [2025-03-09 06:43:10,869 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 13 remaining) [2025-03-09 06:43:10,869 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 13 remaining) [2025-03-09 06:43:10,869 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 13 remaining) [2025-03-09 06:43:10,869 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 13 remaining) [2025-03-09 06:43:10,869 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 13 remaining) [2025-03-09 06:43:10,870 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 13 remaining) [2025-03-09 06:43:10,877 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2025-03-09 06:43:11,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2025-03-09 06:43:11,071 INFO L422 BasicCegarLoop]: Path program histogram: [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 06:43:11,075 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-03-09 06:43:11,075 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-03-09 06:43:11,079 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.03 06:43:11 BasicIcfg [2025-03-09 06:43:11,079 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-03-09 06:43:11,080 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-03-09 06:43:11,080 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-03-09 06:43:11,080 INFO L274 PluginConnector]: Witness Printer initialized [2025-03-09 06:43:11,081 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 06:43:00" (3/4) ... [2025-03-09 06:43:11,082 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-03-09 06:43:11,084 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2025-03-09 06:43:11,084 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2025-03-09 06:43:11,084 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2025-03-09 06:43:11,091 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 73 nodes and edges [2025-03-09 06:43:11,091 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2025-03-09 06:43:11,092 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2025-03-09 06:43:11,092 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2025-03-09 06:43:11,155 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-03-09 06:43:11,155 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2025-03-09 06:43:11,155 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-03-09 06:43:11,156 INFO L158 Benchmark]: Toolchain (without parser) took 11222.29ms. Allocated memory was 142.6MB in the beginning and 436.2MB in the end (delta: 293.6MB). Free memory was 112.8MB in the beginning and 112.7MB in the end (delta: 25.5kB). Peak memory consumption was 289.8MB. Max. memory is 16.1GB. [2025-03-09 06:43:11,156 INFO L158 Benchmark]: CDTParser took 0.42ms. Allocated memory is still 226.5MB. Free memory is still 146.5MB. There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:43:11,156 INFO L158 Benchmark]: CACSL2BoogieTranslator took 191.81ms. Allocated memory is still 142.6MB. Free memory was 112.8MB in the beginning and 101.0MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:43:11,157 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.21ms. Allocated memory is still 142.6MB. Free memory was 101.0MB in the beginning and 99.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:43:11,157 INFO L158 Benchmark]: Boogie Preprocessor took 40.45ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 97.9MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-03-09 06:43:11,157 INFO L158 Benchmark]: IcfgBuilder took 484.85ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 63.2MB in the end (delta: 34.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-03-09 06:43:11,158 INFO L158 Benchmark]: TraceAbstraction took 10395.52ms. Allocated memory was 142.6MB in the beginning and 436.2MB in the end (delta: 293.6MB). Free memory was 62.6MB in the beginning and 115.9MB in the end (delta: -53.4MB). Peak memory consumption was 306.6MB. Max. memory is 16.1GB. [2025-03-09 06:43:11,158 INFO L158 Benchmark]: Witness Printer took 75.14ms. Allocated memory is still 436.2MB. Free memory was 115.9MB in the beginning and 112.7MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. [2025-03-09 06:43:11,159 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42ms. Allocated memory is still 226.5MB. Free memory is still 146.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 191.81ms. Allocated memory is still 142.6MB. Free memory was 112.8MB in the beginning and 101.0MB in the end (delta: 11.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.21ms. Allocated memory is still 142.6MB. Free memory was 101.0MB in the beginning and 99.3MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 40.45ms. Allocated memory is still 142.6MB. Free memory was 99.3MB in the beginning and 97.9MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 484.85ms. Allocated memory is still 142.6MB. Free memory was 97.9MB in the beginning and 63.2MB in the end (delta: 34.7MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * TraceAbstraction took 10395.52ms. Allocated memory was 142.6MB in the beginning and 436.2MB in the end (delta: 293.6MB). Free memory was 62.6MB in the beginning and 115.9MB in the end (delta: -53.4MB). Peak memory consumption was 306.6MB. Max. memory is 16.1GB. * Witness Printer took 75.14ms. Allocated memory is still 436.2MB. Free memory was 115.9MB in the beginning and 112.7MB in the end (delta: 3.2MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 47]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 108]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 64 locations, 68 edges, 13 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.3s, OverallIterations: 13, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 5.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1036 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 973 mSDsluCounter, 611 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 585 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3612 IncrementalHoareTripleChecker+Invalid, 3646 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 26 mSDtfsCounter, 3612 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 409 GetRequests, 285 SyntacticMatches, 7 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 263 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=349occurred in iteration=11, InterpolantAutomatonStates: 93, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 388 NumberOfCodeBlocks, 260 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 529 ConstructedInterpolants, 0 QuantifiedInterpolants, 1525 SizeOfPredicates, 29 NumberOfNonLiveVariables, 895 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 30 InterpolantComputations, 5 PerfectInterpolantSequences, 354/527 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-03-09 06:43:11,172 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE