./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_75-tricky_address2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_75-tricky_address2_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3c0354ee6107efc04d15102ecf9eef73430e38e14b70f16419cd07cd733fd0df --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:49:00,810 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:49:00,850 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:49:00,853 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:49:00,854 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:49:00,883 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:49:00,886 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:49:00,886 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:49:00,887 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:49:00,887 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:49:00,887 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:49:00,888 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:49:00,892 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:49:00,892 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:49:00,893 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:49:00,893 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:49:00,906 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:49:00,906 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:49:00,906 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:49:00,906 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:49:00,907 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:49:00,907 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:49:00,909 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:49:00,910 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:49:00,910 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:49:00,910 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:49:00,910 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:49:00,910 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:49:00,910 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:49:00,911 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:49:00,911 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:49:00,911 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:49:00,911 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:49:00,911 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:49:00,911 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:49:00,912 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:49:00,912 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:49:00,912 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:49:00,912 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:49:00,913 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:49:00,913 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:49:00,913 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:49:00,913 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:49:00,914 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:49:00,914 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c0354ee6107efc04d15102ecf9eef73430e38e14b70f16419cd07cd733fd0df [2024-11-17 07:49:01,196 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:49:01,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:49:01,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:49:01,232 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:49:01,232 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:49:01,233 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_75-tricky_address2_racefree.i [2024-11-17 07:49:02,735 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:49:02,944 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:49:02,948 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_75-tricky_address2_racefree.i [2024-11-17 07:49:02,976 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c9b4a98e/afa36e5ad3be4153a971aff54a8b3f92/FLAGfef1f0f09 [2024-11-17 07:49:03,295 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c9b4a98e/afa36e5ad3be4153a971aff54a8b3f92 [2024-11-17 07:49:03,297 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:49:03,299 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:49:03,300 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:49:03,300 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:49:03,304 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:49:03,305 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:49:03" (1/1) ... [2024-11-17 07:49:03,306 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e04290e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:03, skipping insertion in model container [2024-11-17 07:49:03,306 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:49:03" (1/1) ... [2024-11-17 07:49:03,348 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:49:03,808 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:49:03,850 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:49:03,903 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:49:03,961 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:49:03,961 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:03 WrapperNode [2024-11-17 07:49:03,961 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:49:03,962 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:49:03,963 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:49:03,963 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:49:03,968 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:03" (1/1) ... [2024-11-17 07:49:03,990 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:03" (1/1) ... [2024-11-17 07:49:04,032 INFO L138 Inliner]: procedures = 271, calls = 110, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 277 [2024-11-17 07:49:04,036 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:49:04,037 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:49:04,037 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:49:04,037 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:49:04,045 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:03" (1/1) ... [2024-11-17 07:49:04,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:03" (1/1) ... [2024-11-17 07:49:04,051 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:03" (1/1) ... [2024-11-17 07:49:04,064 INFO L175 MemorySlicer]: Split 79 memory accesses to 4 slices as follows [2, 5, 2, 70]. 89 percent of accesses are in the largest equivalence class. The 67 initializations are split as follows [2, 5, 0, 60]. The 5 writes are split as follows [0, 0, 1, 4]. [2024-11-17 07:49:04,064 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:03" (1/1) ... [2024-11-17 07:49:04,065 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:03" (1/1) ... [2024-11-17 07:49:04,071 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:03" (1/1) ... [2024-11-17 07:49:04,072 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:03" (1/1) ... [2024-11-17 07:49:04,073 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:03" (1/1) ... [2024-11-17 07:49:04,074 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:03" (1/1) ... [2024-11-17 07:49:04,077 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:49:04,078 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:49:04,078 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:49:04,078 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:49:04,078 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:03" (1/1) ... [2024-11-17 07:49:04,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:49:04,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:49:04,116 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 07:49:04,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 07:49:04,236 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 07:49:04,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 07:49:04,236 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-17 07:49:04,236 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 07:49:04,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 07:49:04,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 07:49:04,237 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-17 07:49:04,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 07:49:04,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 07:49:04,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-17 07:49:04,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-17 07:49:04,237 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-17 07:49:04,237 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:49:04,237 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-17 07:49:04,237 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-17 07:49:04,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:49:04,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 07:49:04,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 07:49:04,237 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-17 07:49:04,238 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:49:04,238 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:49:04,243 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:49:04,396 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:49:04,397 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:49:04,663 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L953: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2024-11-17 07:49:04,664 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L953-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2024-11-17 07:49:04,751 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:49:04,751 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:49:05,146 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:49:05,146 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:49:05,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:49:05 BoogieIcfgContainer [2024-11-17 07:49:05,147 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:49:05,151 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:49:05,151 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:49:05,155 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:49:05,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:49:03" (1/3) ... [2024-11-17 07:49:05,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd7de0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:49:05, skipping insertion in model container [2024-11-17 07:49:05,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:03" (2/3) ... [2024-11-17 07:49:05,157 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6cd7de0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:49:05, skipping insertion in model container [2024-11-17 07:49:05,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:49:05" (3/3) ... [2024-11-17 07:49:05,160 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_75-tricky_address2_racefree.i [2024-11-17 07:49:05,179 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:49:05,179 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-17 07:49:05,179 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:49:05,237 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-17 07:49:05,283 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 126 transitions, 259 flow [2024-11-17 07:49:05,349 INFO L124 PetriNetUnfolderBase]: 40/182 cut-off events. [2024-11-17 07:49:05,349 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-17 07:49:05,356 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 182 events. 40/182 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 712 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 108. Up to 8 conditions per place. [2024-11-17 07:49:05,357 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 126 transitions, 259 flow [2024-11-17 07:49:05,361 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 125 transitions, 257 flow [2024-11-17 07:49:05,370 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:49:05,380 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;@318cbbac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:49:05,380 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-11-17 07:49:05,386 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:49:05,387 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events. [2024-11-17 07:49:05,387 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:49:05,387 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:05,388 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 07:49:05,389 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-17 07:49:05,392 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:05,393 INFO L85 PathProgramCache]: Analyzing trace with hash 21188275, now seen corresponding path program 1 times [2024-11-17 07:49:05,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:05,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557881931] [2024-11-17 07:49:05,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:05,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:05,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:05,733 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:05,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:05,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557881931] [2024-11-17 07:49:05,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557881931] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:05,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:05,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:49:05,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1319112232] [2024-11-17 07:49:05,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:05,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:49:05,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:05,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:49:05,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:49:05,785 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 126 [2024-11-17 07:49:05,788 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 125 transitions, 257 flow. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:05,788 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:05,788 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 126 [2024-11-17 07:49:05,789 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:06,102 INFO L124 PetriNetUnfolderBase]: 421/1428 cut-off events. [2024-11-17 07:49:06,102 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-17 07:49:06,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2279 conditions, 1428 events. 421/1428 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 10029 event pairs, 378 based on Foata normal form. 427/1726 useless extension candidates. Maximal degree in co-relation 2178. Up to 844 conditions per place. [2024-11-17 07:49:06,112 INFO L140 encePairwiseOnDemand]: 97/126 looper letters, 47 selfloop transitions, 3 changer transitions 0/104 dead transitions. [2024-11-17 07:49:06,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 104 transitions, 315 flow [2024-11-17 07:49:06,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:49:06,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:49:06,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 293 transitions. [2024-11-17 07:49:06,123 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5813492063492064 [2024-11-17 07:49:06,124 INFO L175 Difference]: Start difference. First operand has 102 places, 125 transitions, 257 flow. Second operand 4 states and 293 transitions. [2024-11-17 07:49:06,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 104 transitions, 315 flow [2024-11-17 07:49:06,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 104 transitions, 315 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:49:06,130 INFO L231 Difference]: Finished difference. Result has 107 places, 104 transitions, 235 flow [2024-11-17 07:49:06,131 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=235, PETRI_PLACES=107, PETRI_TRANSITIONS=104} [2024-11-17 07:49:06,134 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 5 predicate places. [2024-11-17 07:49:06,135 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 104 transitions, 235 flow [2024-11-17 07:49:06,135 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:06,135 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:06,135 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-17 07:49:06,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:49:06,136 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-17 07:49:06,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:06,136 INFO L85 PathProgramCache]: Analyzing trace with hash -35189933, now seen corresponding path program 1 times [2024-11-17 07:49:06,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:06,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671889439] [2024-11-17 07:49:06,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:06,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:06,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:06,222 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:06,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:06,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671889439] [2024-11-17 07:49:06,223 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671889439] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:49:06,223 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1848856339] [2024-11-17 07:49:06,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:06,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:49:06,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:49:06,226 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) [2024-11-17 07:49:06,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 07:49:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:06,312 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:49:06,316 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:49:06,357 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:06,358 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:49:06,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1848856339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:06,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:49:06,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-17 07:49:06,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050301264] [2024-11-17 07:49:06,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:06,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:49:06,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:06,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:49:06,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:49:06,370 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 126 [2024-11-17 07:49:06,371 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 104 transitions, 235 flow. Second operand has 6 states, 6 states have (on average 54.833333333333336) internal successors, (329), 6 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:06,371 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:06,371 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 126 [2024-11-17 07:49:06,372 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:06,625 INFO L124 PetriNetUnfolderBase]: 421/1427 cut-off events. [2024-11-17 07:49:06,626 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-17 07:49:06,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2289 conditions, 1427 events. 421/1427 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 10024 event pairs, 378 based on Foata normal form. 1/1299 useless extension candidates. Maximal degree in co-relation 2270. Up to 838 conditions per place. [2024-11-17 07:49:06,632 INFO L140 encePairwiseOnDemand]: 121/126 looper letters, 43 selfloop transitions, 6 changer transitions 0/103 dead transitions. [2024-11-17 07:49:06,632 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 103 transitions, 329 flow [2024-11-17 07:49:06,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:49:06,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:49:06,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 374 transitions. [2024-11-17 07:49:06,635 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4947089947089947 [2024-11-17 07:49:06,635 INFO L175 Difference]: Start difference. First operand has 107 places, 104 transitions, 235 flow. Second operand 6 states and 374 transitions. [2024-11-17 07:49:06,635 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 103 transitions, 329 flow [2024-11-17 07:49:06,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 103 transitions, 327 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:49:06,638 INFO L231 Difference]: Finished difference. Result has 110 places, 103 transitions, 241 flow [2024-11-17 07:49:06,638 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=241, PETRI_PLACES=110, PETRI_TRANSITIONS=103} [2024-11-17 07:49:06,639 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 8 predicate places. [2024-11-17 07:49:06,639 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 103 transitions, 241 flow [2024-11-17 07:49:06,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.833333333333336) internal successors, (329), 6 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:06,639 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:06,639 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-17 07:49:06,656 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-17 07:49:06,840 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 [2024-11-17 07:49:06,841 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-17 07:49:06,842 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:06,842 INFO L85 PathProgramCache]: Analyzing trace with hash -1090887310, now seen corresponding path program 1 times [2024-11-17 07:49:06,842 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:06,842 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139157267] [2024-11-17 07:49:06,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:06,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:06,904 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 07:49:06,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:06,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139157267] [2024-11-17 07:49:06,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139157267] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:06,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:06,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:49:06,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [794751737] [2024-11-17 07:49:06,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:06,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:49:06,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:06,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:49:06,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:49:06,912 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 126 [2024-11-17 07:49:06,912 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 103 transitions, 241 flow. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:06,912 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:06,912 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 126 [2024-11-17 07:49:06,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:07,075 INFO L124 PetriNetUnfolderBase]: 421/1426 cut-off events. [2024-11-17 07:49:07,076 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-17 07:49:07,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2290 conditions, 1426 events. 421/1426 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 10011 event pairs, 378 based on Foata normal form. 1/1300 useless extension candidates. Maximal degree in co-relation 2265. Up to 841 conditions per place. [2024-11-17 07:49:07,082 INFO L140 encePairwiseOnDemand]: 123/126 looper letters, 43 selfloop transitions, 4 changer transitions 0/102 dead transitions. [2024-11-17 07:49:07,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 102 transitions, 331 flow [2024-11-17 07:49:07,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:49:07,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:49:07,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 211 transitions. [2024-11-17 07:49:07,083 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5582010582010583 [2024-11-17 07:49:07,084 INFO L175 Difference]: Start difference. First operand has 110 places, 103 transitions, 241 flow. Second operand 3 states and 211 transitions. [2024-11-17 07:49:07,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 102 transitions, 331 flow [2024-11-17 07:49:07,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 102 transitions, 321 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-17 07:49:07,086 INFO L231 Difference]: Finished difference. Result has 107 places, 102 transitions, 235 flow [2024-11-17 07:49:07,087 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=235, PETRI_PLACES=107, PETRI_TRANSITIONS=102} [2024-11-17 07:49:07,087 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 5 predicate places. [2024-11-17 07:49:07,088 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 102 transitions, 235 flow [2024-11-17 07:49:07,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:07,088 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:07,088 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:07,088 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 07:49:07,088 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-17 07:49:07,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:07,089 INFO L85 PathProgramCache]: Analyzing trace with hash 2083055313, now seen corresponding path program 1 times [2024-11-17 07:49:07,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:07,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790385004] [2024-11-17 07:49:07,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:07,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:07,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:07,155 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:07,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:07,155 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790385004] [2024-11-17 07:49:07,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1790385004] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:49:07,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1763424381] [2024-11-17 07:49:07,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:07,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:49:07,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:49:07,159 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) [2024-11-17 07:49:07,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 07:49:07,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:07,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 07:49:07,237 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:49:07,271 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:07,272 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:49:07,307 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:07,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1763424381] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:49:07,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:49:07,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-17 07:49:07,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362819297] [2024-11-17 07:49:07,308 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:49:07,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 07:49:07,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:07,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 07:49:07,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-17 07:49:07,323 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 126 [2024-11-17 07:49:07,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 102 transitions, 235 flow. Second operand has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:07,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:07,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 126 [2024-11-17 07:49:07,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:07,548 INFO L124 PetriNetUnfolderBase]: 421/1432 cut-off events. [2024-11-17 07:49:07,548 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-11-17 07:49:07,550 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2306 conditions, 1432 events. 421/1432 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 10012 event pairs, 378 based on Foata normal form. 2/1307 useless extension candidates. Maximal degree in co-relation 2260. Up to 840 conditions per place. [2024-11-17 07:49:07,554 INFO L140 encePairwiseOnDemand]: 122/126 looper letters, 44 selfloop transitions, 7 changer transitions 0/105 dead transitions. [2024-11-17 07:49:07,555 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 105 transitions, 359 flow [2024-11-17 07:49:07,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 07:49:07,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 07:49:07,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 431 transitions. [2024-11-17 07:49:07,557 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4886621315192744 [2024-11-17 07:49:07,557 INFO L175 Difference]: Start difference. First operand has 107 places, 102 transitions, 235 flow. Second operand 7 states and 431 transitions. [2024-11-17 07:49:07,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 105 transitions, 359 flow [2024-11-17 07:49:07,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 105 transitions, 345 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:49:07,560 INFO L231 Difference]: Finished difference. Result has 113 places, 105 transitions, 268 flow [2024-11-17 07:49:07,560 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=268, PETRI_PLACES=113, PETRI_TRANSITIONS=105} [2024-11-17 07:49:07,561 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 11 predicate places. [2024-11-17 07:49:07,561 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 105 transitions, 268 flow [2024-11-17 07:49:07,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:07,562 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:07,562 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:07,577 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 07:49:07,766 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,SelfDestructingSolverStorable3 [2024-11-17 07:49:07,767 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-17 07:49:07,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:07,768 INFO L85 PathProgramCache]: Analyzing trace with hash -1832180335, now seen corresponding path program 2 times [2024-11-17 07:49:07,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:07,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1879769365] [2024-11-17 07:49:07,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:07,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:07,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:07,842 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-17 07:49:07,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:07,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1879769365] [2024-11-17 07:49:07,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1879769365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:07,843 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:07,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:49:07,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1650505305] [2024-11-17 07:49:07,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:07,843 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:49:07,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:07,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:49:07,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:49:07,851 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 126 [2024-11-17 07:49:07,852 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 105 transitions, 268 flow. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:07,852 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:07,852 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 126 [2024-11-17 07:49:07,852 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:08,068 INFO L124 PetriNetUnfolderBase]: 454/1408 cut-off events. [2024-11-17 07:49:08,068 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2024-11-17 07:49:08,070 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2361 conditions, 1408 events. 454/1408 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 9575 event pairs, 0 based on Foata normal form. 19/1321 useless extension candidates. Maximal degree in co-relation 2310. Up to 861 conditions per place. [2024-11-17 07:49:08,074 INFO L140 encePairwiseOnDemand]: 120/126 looper letters, 87 selfloop transitions, 3 changer transitions 0/140 dead transitions. [2024-11-17 07:49:08,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 140 transitions, 518 flow [2024-11-17 07:49:08,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:49:08,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:49:08,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 296 transitions. [2024-11-17 07:49:08,076 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5873015873015873 [2024-11-17 07:49:08,076 INFO L175 Difference]: Start difference. First operand has 113 places, 105 transitions, 268 flow. Second operand 4 states and 296 transitions. [2024-11-17 07:49:08,076 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 140 transitions, 518 flow [2024-11-17 07:49:08,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 140 transitions, 510 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-17 07:49:08,080 INFO L231 Difference]: Finished difference. Result has 113 places, 103 transitions, 266 flow [2024-11-17 07:49:08,080 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=266, PETRI_PLACES=113, PETRI_TRANSITIONS=103} [2024-11-17 07:49:08,081 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 11 predicate places. [2024-11-17 07:49:08,081 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 103 transitions, 266 flow [2024-11-17 07:49:08,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:08,081 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:08,081 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:08,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 07:49:08,082 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-17 07:49:08,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:08,082 INFO L85 PathProgramCache]: Analyzing trace with hash 1204699939, now seen corresponding path program 1 times [2024-11-17 07:49:08,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:08,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396113585] [2024-11-17 07:49:08,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:08,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:08,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:08,211 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:49:08,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:08,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396113585] [2024-11-17 07:49:08,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396113585] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:49:08,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519918740] [2024-11-17 07:49:08,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:08,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:49:08,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:49:08,214 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) [2024-11-17 07:49:08,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 07:49:08,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:08,297 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 07:49:08,299 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:49:08,340 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:49:08,341 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:49:08,430 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:49:08,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519918740] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:49:08,431 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:49:08,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-17 07:49:08,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036863255] [2024-11-17 07:49:08,431 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:49:08,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-17 07:49:08,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:08,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-17 07:49:08,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-17 07:49:08,449 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 126 [2024-11-17 07:49:08,450 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 103 transitions, 266 flow. Second operand has 18 states, 18 states have (on average 55.27777777777778) internal successors, (995), 18 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:08,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:08,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 126 [2024-11-17 07:49:08,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:08,779 INFO L124 PetriNetUnfolderBase]: 420/1391 cut-off events. [2024-11-17 07:49:08,779 INFO L125 PetriNetUnfolderBase]: For 134/134 co-relation queries the response was YES. [2024-11-17 07:49:08,782 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2308 conditions, 1391 events. 420/1391 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 9479 event pairs, 378 based on Foata normal form. 4/1273 useless extension candidates. Maximal degree in co-relation 2211. Up to 823 conditions per place. [2024-11-17 07:49:08,787 INFO L140 encePairwiseOnDemand]: 122/126 looper letters, 44 selfloop transitions, 15 changer transitions 0/111 dead transitions. [2024-11-17 07:49:08,787 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 111 transitions, 448 flow [2024-11-17 07:49:08,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-17 07:49:08,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-17 07:49:08,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 873 transitions. [2024-11-17 07:49:08,790 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46190476190476193 [2024-11-17 07:49:08,790 INFO L175 Difference]: Start difference. First operand has 113 places, 103 transitions, 266 flow. Second operand 15 states and 873 transitions. [2024-11-17 07:49:08,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 111 transitions, 448 flow [2024-11-17 07:49:08,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 111 transitions, 442 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:49:08,794 INFO L231 Difference]: Finished difference. Result has 128 places, 111 transitions, 373 flow [2024-11-17 07:49:08,794 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=373, PETRI_PLACES=128, PETRI_TRANSITIONS=111} [2024-11-17 07:49:08,795 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 26 predicate places. [2024-11-17 07:49:08,795 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 111 transitions, 373 flow [2024-11-17 07:49:08,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 55.27777777777778) internal successors, (995), 18 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:08,796 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:08,796 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:08,813 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-17 07:49:08,997 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:49:08,998 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-17 07:49:08,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:08,998 INFO L85 PathProgramCache]: Analyzing trace with hash 152551587, now seen corresponding path program 2 times [2024-11-17 07:49:08,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:08,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753429770] [2024-11-17 07:49:08,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:08,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:09,253 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:49:09,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:09,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753429770] [2024-11-17 07:49:09,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753429770] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:49:09,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794706206] [2024-11-17 07:49:09,254 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:49:09,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:49:09,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:49:09,257 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) [2024-11-17 07:49:09,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-17 07:49:09,340 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 07:49:09,340 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:49:09,342 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-17 07:49:09,343 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:49:09,410 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:49:09,411 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:49:09,581 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:49:09,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794706206] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:49:09,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:49:09,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-17 07:49:09,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317527703] [2024-11-17 07:49:09,582 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:49:09,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-17 07:49:09,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:09,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-17 07:49:09,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-17 07:49:09,604 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 126 [2024-11-17 07:49:09,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 111 transitions, 373 flow. Second operand has 23 states, 23 states have (on average 55.26086956521739) internal successors, (1271), 23 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:09,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:09,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 126 [2024-11-17 07:49:09,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:09,952 INFO L124 PetriNetUnfolderBase]: 420/1403 cut-off events. [2024-11-17 07:49:09,952 INFO L125 PetriNetUnfolderBase]: For 353/353 co-relation queries the response was YES. [2024-11-17 07:49:09,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2360 conditions, 1403 events. 420/1403 cut-off events. For 353/353 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 9506 event pairs, 378 based on Foata normal form. 3/1285 useless extension candidates. Maximal degree in co-relation 2194. Up to 823 conditions per place. [2024-11-17 07:49:09,958 INFO L140 encePairwiseOnDemand]: 122/126 looper letters, 44 selfloop transitions, 21 changer transitions 0/117 dead transitions. [2024-11-17 07:49:09,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 117 transitions, 569 flow [2024-11-17 07:49:09,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-17 07:49:09,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-17 07:49:09,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1202 transitions. [2024-11-17 07:49:09,968 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45427059712774 [2024-11-17 07:49:09,968 INFO L175 Difference]: Start difference. First operand has 128 places, 111 transitions, 373 flow. Second operand 21 states and 1202 transitions. [2024-11-17 07:49:09,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 117 transitions, 569 flow [2024-11-17 07:49:09,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 117 transitions, 551 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-17 07:49:09,975 INFO L231 Difference]: Finished difference. Result has 147 places, 117 transitions, 478 flow [2024-11-17 07:49:09,975 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=478, PETRI_PLACES=147, PETRI_TRANSITIONS=117} [2024-11-17 07:49:09,976 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 45 predicate places. [2024-11-17 07:49:09,976 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 117 transitions, 478 flow [2024-11-17 07:49:09,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 55.26086956521739) internal successors, (1271), 23 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:09,977 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:09,977 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:09,993 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-17 07:49:10,177 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:49:10,178 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-17 07:49:10,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:10,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1962059459, now seen corresponding path program 3 times [2024-11-17 07:49:10,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:10,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352691138] [2024-11-17 07:49:10,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:10,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:10,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 07:49:10,202 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 07:49:10,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 07:49:10,255 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 07:49:10,255 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-17 07:49:10,257 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2024-11-17 07:49:10,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2024-11-17 07:49:10,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2024-11-17 07:49:10,260 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2024-11-17 07:49:10,260 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2024-11-17 07:49:10,260 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2024-11-17 07:49:10,260 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 19 remaining) [2024-11-17 07:49:10,260 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2024-11-17 07:49:10,260 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2024-11-17 07:49:10,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2024-11-17 07:49:10,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 19 remaining) [2024-11-17 07:49:10,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2024-11-17 07:49:10,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2024-11-17 07:49:10,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2024-11-17 07:49:10,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2024-11-17 07:49:10,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2024-11-17 07:49:10,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2024-11-17 07:49:10,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2024-11-17 07:49:10,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2024-11-17 07:49:10,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 07:49:10,263 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1] [2024-11-17 07:49:10,265 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-17 07:49:10,265 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-17 07:49:10,299 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-17 07:49:10,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 175 transitions, 366 flow [2024-11-17 07:49:10,319 INFO L124 PetriNetUnfolderBase]: 67/309 cut-off events. [2024-11-17 07:49:10,320 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-17 07:49:10,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321 conditions, 309 events. 67/309 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1395 event pairs, 0 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 184. Up to 12 conditions per place. [2024-11-17 07:49:10,321 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 175 transitions, 366 flow [2024-11-17 07:49:10,323 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 175 transitions, 366 flow [2024-11-17 07:49:10,324 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:49:10,325 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;@318cbbac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:49:10,325 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-17 07:49:10,326 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:49:10,328 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events. [2024-11-17 07:49:10,328 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:49:10,328 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:10,329 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 07:49:10,329 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:49:10,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:10,329 INFO L85 PathProgramCache]: Analyzing trace with hash 26575475, now seen corresponding path program 1 times [2024-11-17 07:49:10,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:10,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1495755857] [2024-11-17 07:49:10,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:10,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:10,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:10,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:10,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:10,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1495755857] [2024-11-17 07:49:10,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1495755857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:10,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:10,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:49:10,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389657442] [2024-11-17 07:49:10,367 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:10,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:49:10,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:10,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:49:10,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:49:10,376 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 175 [2024-11-17 07:49:10,376 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 175 transitions, 366 flow. Second operand has 4 states, 4 states have (on average 73.75) internal successors, (295), 4 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:10,377 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:10,377 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 175 [2024-11-17 07:49:10,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:13,442 INFO L124 PetriNetUnfolderBase]: 16436/36886 cut-off events. [2024-11-17 07:49:13,443 INFO L125 PetriNetUnfolderBase]: For 125/125 co-relation queries the response was YES. [2024-11-17 07:49:13,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61494 conditions, 36886 events. 16436/36886 cut-off events. For 125/125 co-relation queries the response was YES. Maximal size of possible extension queue 1091. Compared 394054 event pairs, 15174 based on Foata normal form. 12362/45933 useless extension candidates. Maximal degree in co-relation 25647. Up to 24504 conditions per place. [2024-11-17 07:49:13,656 INFO L140 encePairwiseOnDemand]: 136/175 looper letters, 68 selfloop transitions, 3 changer transitions 0/144 dead transitions. [2024-11-17 07:49:13,656 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 144 transitions, 446 flow [2024-11-17 07:49:13,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:49:13,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:49:13,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 400 transitions. [2024-11-17 07:49:13,658 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2024-11-17 07:49:13,658 INFO L175 Difference]: Start difference. First operand has 141 places, 175 transitions, 366 flow. Second operand 4 states and 400 transitions. [2024-11-17 07:49:13,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 144 transitions, 446 flow [2024-11-17 07:49:13,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 144 transitions, 446 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:49:13,662 INFO L231 Difference]: Finished difference. Result has 146 places, 144 transitions, 324 flow [2024-11-17 07:49:13,662 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=324, PETRI_PLACES=146, PETRI_TRANSITIONS=144} [2024-11-17 07:49:13,663 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 5 predicate places. [2024-11-17 07:49:13,663 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 144 transitions, 324 flow [2024-11-17 07:49:13,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.75) internal successors, (295), 4 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:13,663 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:13,663 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-17 07:49:13,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 07:49:13,663 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:49:13,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:13,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1590399699, now seen corresponding path program 1 times [2024-11-17 07:49:13,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:13,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1409738570] [2024-11-17 07:49:13,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:13,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:13,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:13,729 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:13,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:13,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1409738570] [2024-11-17 07:49:13,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1409738570] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:49:13,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534328322] [2024-11-17 07:49:13,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:13,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:49:13,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:49:13,732 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) [2024-11-17 07:49:13,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-17 07:49:13,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:13,811 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:49:13,811 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:49:13,838 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:13,838 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:49:13,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534328322] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:13,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:49:13,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-17 07:49:13,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395485723] [2024-11-17 07:49:13,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:13,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:49:13,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:13,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:49:13,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:49:13,848 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 175 [2024-11-17 07:49:13,848 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 144 transitions, 324 flow. Second operand has 6 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:13,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:13,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 175 [2024-11-17 07:49:13,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:16,686 INFO L124 PetriNetUnfolderBase]: 16436/36885 cut-off events. [2024-11-17 07:49:16,687 INFO L125 PetriNetUnfolderBase]: For 131/131 co-relation queries the response was YES. [2024-11-17 07:49:16,750 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61504 conditions, 36885 events. 16436/36885 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 1091. Compared 394131 event pairs, 15174 based on Foata normal form. 1/33571 useless extension candidates. Maximal degree in co-relation 61484. Up to 24498 conditions per place. [2024-11-17 07:49:16,896 INFO L140 encePairwiseOnDemand]: 170/175 looper letters, 64 selfloop transitions, 6 changer transitions 0/143 dead transitions. [2024-11-17 07:49:16,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 143 transitions, 460 flow [2024-11-17 07:49:16,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:49:16,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:49:16,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 509 transitions. [2024-11-17 07:49:16,901 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4847619047619048 [2024-11-17 07:49:16,901 INFO L175 Difference]: Start difference. First operand has 146 places, 144 transitions, 324 flow. Second operand 6 states and 509 transitions. [2024-11-17 07:49:16,901 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 143 transitions, 460 flow [2024-11-17 07:49:16,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 143 transitions, 458 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:49:16,903 INFO L231 Difference]: Finished difference. Result has 149 places, 143 transitions, 330 flow [2024-11-17 07:49:16,904 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=330, PETRI_PLACES=149, PETRI_TRANSITIONS=143} [2024-11-17 07:49:16,905 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 8 predicate places. [2024-11-17 07:49:16,905 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 143 transitions, 330 flow [2024-11-17 07:49:16,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:16,906 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:16,906 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-17 07:49:16,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-17 07:49:17,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-17 07:49:17,108 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:49:17,108 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:17,108 INFO L85 PathProgramCache]: Analyzing trace with hash 2057751201, now seen corresponding path program 1 times [2024-11-17 07:49:17,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:17,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595693873] [2024-11-17 07:49:17,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:17,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:17,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:17,152 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 07:49:17,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:17,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595693873] [2024-11-17 07:49:17,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595693873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:17,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:17,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:49:17,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448103326] [2024-11-17 07:49:17,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:17,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:49:17,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:17,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:49:17,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:49:17,161 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 175 [2024-11-17 07:49:17,161 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 143 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:17,161 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:17,162 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 175 [2024-11-17 07:49:17,162 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:19,639 INFO L124 PetriNetUnfolderBase]: 16436/36884 cut-off events. [2024-11-17 07:49:19,640 INFO L125 PetriNetUnfolderBase]: For 142/142 co-relation queries the response was YES. [2024-11-17 07:49:19,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61505 conditions, 36884 events. 16436/36884 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 1091. Compared 393897 event pairs, 15174 based on Foata normal form. 1/33572 useless extension candidates. Maximal degree in co-relation 61479. Up to 24501 conditions per place. [2024-11-17 07:49:19,813 INFO L140 encePairwiseOnDemand]: 172/175 looper letters, 64 selfloop transitions, 4 changer transitions 0/142 dead transitions. [2024-11-17 07:49:19,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 142 transitions, 462 flow [2024-11-17 07:49:19,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:49:19,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:49:19,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2024-11-17 07:49:19,814 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5504761904761905 [2024-11-17 07:49:19,814 INFO L175 Difference]: Start difference. First operand has 149 places, 143 transitions, 330 flow. Second operand 3 states and 289 transitions. [2024-11-17 07:49:19,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 142 transitions, 462 flow [2024-11-17 07:49:19,816 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 142 transitions, 452 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-17 07:49:19,817 INFO L231 Difference]: Finished difference. Result has 146 places, 142 transitions, 324 flow [2024-11-17 07:49:19,818 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=146, PETRI_TRANSITIONS=142} [2024-11-17 07:49:19,818 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 5 predicate places. [2024-11-17 07:49:19,818 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 142 transitions, 324 flow [2024-11-17 07:49:19,818 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:19,818 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:19,819 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:19,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-17 07:49:19,819 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:49:19,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:19,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1281492143, now seen corresponding path program 1 times [2024-11-17 07:49:19,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:19,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041580212] [2024-11-17 07:49:19,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:19,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:19,892 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:19,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:19,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041580212] [2024-11-17 07:49:19,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1041580212] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:49:19,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646488039] [2024-11-17 07:49:19,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:19,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:49:19,893 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:49:19,895 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) [2024-11-17 07:49:19,896 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-17 07:49:19,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:19,975 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 07:49:19,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:49:19,992 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:19,992 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:49:20,016 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:20,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [646488039] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:49:20,017 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:49:20,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-17 07:49:20,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006569460] [2024-11-17 07:49:20,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:49:20,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 07:49:20,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:20,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 07:49:20,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-17 07:49:20,028 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 175 [2024-11-17 07:49:20,028 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 142 transitions, 324 flow. Second operand has 10 states, 10 states have (on average 74.4) internal successors, (744), 10 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:20,029 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:20,029 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 175 [2024-11-17 07:49:20,029 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:22,805 INFO L124 PetriNetUnfolderBase]: 16436/36890 cut-off events. [2024-11-17 07:49:22,805 INFO L125 PetriNetUnfolderBase]: For 158/158 co-relation queries the response was YES. [2024-11-17 07:49:22,859 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61521 conditions, 36890 events. 16436/36890 cut-off events. For 158/158 co-relation queries the response was YES. Maximal size of possible extension queue 1091. Compared 393883 event pairs, 15174 based on Foata normal form. 2/33580 useless extension candidates. Maximal degree in co-relation 61474. Up to 24500 conditions per place. [2024-11-17 07:49:22,962 INFO L140 encePairwiseOnDemand]: 171/175 looper letters, 65 selfloop transitions, 7 changer transitions 0/145 dead transitions. [2024-11-17 07:49:22,963 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 145 transitions, 490 flow [2024-11-17 07:49:22,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 07:49:22,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 07:49:22,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 585 transitions. [2024-11-17 07:49:22,965 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4775510204081633 [2024-11-17 07:49:22,966 INFO L175 Difference]: Start difference. First operand has 146 places, 142 transitions, 324 flow. Second operand 7 states and 585 transitions. [2024-11-17 07:49:22,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 145 transitions, 490 flow [2024-11-17 07:49:22,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 145 transitions, 476 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:49:22,970 INFO L231 Difference]: Finished difference. Result has 152 places, 145 transitions, 357 flow [2024-11-17 07:49:22,970 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=357, PETRI_PLACES=152, PETRI_TRANSITIONS=145} [2024-11-17 07:49:22,971 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 11 predicate places. [2024-11-17 07:49:22,971 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 145 transitions, 357 flow [2024-11-17 07:49:22,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 74.4) internal successors, (744), 10 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:22,972 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:22,972 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:22,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-17 07:49:23,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:49:23,173 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:49:23,173 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:23,173 INFO L85 PathProgramCache]: Analyzing trace with hash 2027416559, now seen corresponding path program 2 times [2024-11-17 07:49:23,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:23,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688018390] [2024-11-17 07:49:23,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:23,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:23,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:23,229 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-17 07:49:23,229 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:23,229 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688018390] [2024-11-17 07:49:23,229 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688018390] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:23,229 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:23,229 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:49:23,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435995527] [2024-11-17 07:49:23,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:23,230 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:49:23,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:23,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:49:23,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:49:23,236 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 175 [2024-11-17 07:49:23,236 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 145 transitions, 357 flow. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:23,237 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:23,237 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 175 [2024-11-17 07:49:23,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:26,312 INFO L124 PetriNetUnfolderBase]: 19568/42206 cut-off events. [2024-11-17 07:49:26,312 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2024-11-17 07:49:26,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71702 conditions, 42206 events. 19568/42206 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 1164. Compared 443263 event pairs, 8964 based on Foata normal form. 19/38294 useless extension candidates. Maximal degree in co-relation 71650. Up to 29307 conditions per place. [2024-11-17 07:49:26,491 INFO L140 encePairwiseOnDemand]: 169/175 looper letters, 112 selfloop transitions, 3 changer transitions 0/184 dead transitions. [2024-11-17 07:49:26,491 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 184 transitions, 665 flow [2024-11-17 07:49:26,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:49:26,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:49:26,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 397 transitions. [2024-11-17 07:49:26,494 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5671428571428572 [2024-11-17 07:49:26,494 INFO L175 Difference]: Start difference. First operand has 152 places, 145 transitions, 357 flow. Second operand 4 states and 397 transitions. [2024-11-17 07:49:26,494 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 184 transitions, 665 flow [2024-11-17 07:49:26,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 184 transitions, 657 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-17 07:49:26,501 INFO L231 Difference]: Finished difference. Result has 155 places, 147 transitions, 373 flow [2024-11-17 07:49:26,501 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=373, PETRI_PLACES=155, PETRI_TRANSITIONS=147} [2024-11-17 07:49:26,502 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 14 predicate places. [2024-11-17 07:49:26,502 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 147 transitions, 373 flow [2024-11-17 07:49:26,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:26,502 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:26,502 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:26,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-17 07:49:26,502 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:49:26,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:26,503 INFO L85 PathProgramCache]: Analyzing trace with hash 1833528994, now seen corresponding path program 1 times [2024-11-17 07:49:26,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:26,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115194674] [2024-11-17 07:49:26,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:26,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:26,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:26,599 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 07:49:26,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:26,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115194674] [2024-11-17 07:49:26,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115194674] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:49:26,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [815093911] [2024-11-17 07:49:26,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:26,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:49:26,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:49:26,601 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) [2024-11-17 07:49:26,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-17 07:49:26,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:26,682 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 07:49:26,683 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:49:26,709 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 07:49:26,712 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:49:26,778 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 07:49:26,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [815093911] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:49:26,779 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:49:26,779 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-17 07:49:26,779 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756278442] [2024-11-17 07:49:26,779 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:49:26,780 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-17 07:49:26,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:26,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-17 07:49:26,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-17 07:49:26,796 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 175 [2024-11-17 07:49:26,798 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 147 transitions, 373 flow. Second operand has 18 states, 18 states have (on average 74.33333333333333) internal successors, (1338), 18 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:26,798 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:26,798 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 175 [2024-11-17 07:49:26,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:30,127 INFO L124 PetriNetUnfolderBase]: 16438/37008 cut-off events. [2024-11-17 07:49:30,127 INFO L125 PetriNetUnfolderBase]: For 608/1300 co-relation queries the response was YES. [2024-11-17 07:49:30,222 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62114 conditions, 37008 events. 16438/37008 cut-off events. For 608/1300 co-relation queries the response was YES. Maximal size of possible extension queue 1092. Compared 394766 event pairs, 15174 based on Foata normal form. 21/33666 useless extension candidates. Maximal degree in co-relation 62015. Up to 24502 conditions per place. [2024-11-17 07:49:30,317 INFO L140 encePairwiseOnDemand]: 171/175 looper letters, 66 selfloop transitions, 15 changer transitions 0/155 dead transitions. [2024-11-17 07:49:30,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 155 transitions, 599 flow [2024-11-17 07:49:30,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-17 07:49:30,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-17 07:49:30,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1179 transitions. [2024-11-17 07:49:30,321 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4491428571428571 [2024-11-17 07:49:30,321 INFO L175 Difference]: Start difference. First operand has 155 places, 147 transitions, 373 flow. Second operand 15 states and 1179 transitions. [2024-11-17 07:49:30,321 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 155 transitions, 599 flow [2024-11-17 07:49:30,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 155 transitions, 597 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:49:30,325 INFO L231 Difference]: Finished difference. Result has 172 places, 155 transitions, 484 flow [2024-11-17 07:49:30,325 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=484, PETRI_PLACES=172, PETRI_TRANSITIONS=155} [2024-11-17 07:49:30,326 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 31 predicate places. [2024-11-17 07:49:30,326 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 155 transitions, 484 flow [2024-11-17 07:49:30,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 74.33333333333333) internal successors, (1338), 18 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:30,327 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:30,327 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:30,346 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-17 07:49:30,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:49:30,528 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:49:30,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:30,528 INFO L85 PathProgramCache]: Analyzing trace with hash 555654434, now seen corresponding path program 2 times [2024-11-17 07:49:30,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:30,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431786059] [2024-11-17 07:49:30,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:30,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:30,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:30,774 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 07:49:30,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:30,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431786059] [2024-11-17 07:49:30,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431786059] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:49:30,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485267123] [2024-11-17 07:49:30,774 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:49:30,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:49:30,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:49:30,776 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) [2024-11-17 07:49:30,777 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-17 07:49:30,865 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 07:49:30,866 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:49:30,867 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-17 07:49:30,869 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:49:30,921 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 07:49:30,921 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:49:31,072 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-17 07:49:31,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485267123] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:49:31,073 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:49:31,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-17 07:49:31,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814363959] [2024-11-17 07:49:31,073 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:49:31,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-17 07:49:31,074 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:31,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-17 07:49:31,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-17 07:49:31,094 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 175 [2024-11-17 07:49:31,095 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 155 transitions, 484 flow. Second operand has 23 states, 23 states have (on average 74.30434782608695) internal successors, (1709), 23 states have internal predecessors, (1709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:31,095 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:31,095 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 175 [2024-11-17 07:49:31,095 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:34,640 INFO L124 PetriNetUnfolderBase]: 16438/37020 cut-off events. [2024-11-17 07:49:34,641 INFO L125 PetriNetUnfolderBase]: For 846/1538 co-relation queries the response was YES. [2024-11-17 07:49:34,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62168 conditions, 37020 events. 16438/37020 cut-off events. For 846/1538 co-relation queries the response was YES. Maximal size of possible extension queue 1092. Compared 394925 event pairs, 15174 based on Foata normal form. 20/33677 useless extension candidates. Maximal degree in co-relation 62000. Up to 24502 conditions per place. [2024-11-17 07:49:34,867 INFO L140 encePairwiseOnDemand]: 171/175 looper letters, 66 selfloop transitions, 21 changer transitions 0/161 dead transitions. [2024-11-17 07:49:34,867 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 161 transitions, 724 flow [2024-11-17 07:49:34,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-17 07:49:34,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-17 07:49:34,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1622 transitions. [2024-11-17 07:49:34,871 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44136054421768706 [2024-11-17 07:49:34,871 INFO L175 Difference]: Start difference. First operand has 172 places, 155 transitions, 484 flow. Second operand 21 states and 1622 transitions. [2024-11-17 07:49:34,871 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 161 transitions, 724 flow [2024-11-17 07:49:34,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 161 transitions, 706 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-17 07:49:34,875 INFO L231 Difference]: Finished difference. Result has 191 places, 161 transitions, 589 flow [2024-11-17 07:49:34,876 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=589, PETRI_PLACES=191, PETRI_TRANSITIONS=161} [2024-11-17 07:49:34,876 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 50 predicate places. [2024-11-17 07:49:34,876 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 161 transitions, 589 flow [2024-11-17 07:49:34,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 74.30434782608695) internal successors, (1709), 23 states have internal predecessors, (1709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:34,877 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:34,877 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:34,891 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-17 07:49:35,078 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,SelfDestructingSolverStorable14 [2024-11-17 07:49:35,079 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:49:35,079 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:35,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1747126270, now seen corresponding path program 3 times [2024-11-17 07:49:35,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:35,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642581391] [2024-11-17 07:49:35,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:35,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:35,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:35,165 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:49:35,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:35,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642581391] [2024-11-17 07:49:35,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1642581391] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:49:35,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2038924278] [2024-11-17 07:49:35,166 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-17 07:49:35,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:49:35,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:49:35,168 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) [2024-11-17 07:49:35,169 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-17 07:49:35,255 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-17 07:49:35,255 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:49:35,256 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 07:49:35,258 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:49:35,281 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:49:35,282 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:49:35,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2038924278] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:35,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:49:35,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-17 07:49:35,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396416256] [2024-11-17 07:49:35,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:35,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:49:35,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:35,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:49:35,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-17 07:49:35,290 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 175 [2024-11-17 07:49:35,290 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 161 transitions, 589 flow. Second operand has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:35,290 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:35,290 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 175 [2024-11-17 07:49:35,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:38,900 INFO L124 PetriNetUnfolderBase]: 19638/39673 cut-off events. [2024-11-17 07:49:38,900 INFO L125 PetriNetUnfolderBase]: For 1265/1265 co-relation queries the response was YES. [2024-11-17 07:49:39,078 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70964 conditions, 39673 events. 19638/39673 cut-off events. For 1265/1265 co-relation queries the response was YES. Maximal size of possible extension queue 1097. Compared 397897 event pairs, 2448 based on Foata normal form. 361/36899 useless extension candidates. Maximal degree in co-relation 70776. Up to 22233 conditions per place. [2024-11-17 07:49:39,190 INFO L140 encePairwiseOnDemand]: 170/175 looper letters, 158 selfloop transitions, 6 changer transitions 0/232 dead transitions. [2024-11-17 07:49:39,191 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 232 transitions, 1057 flow [2024-11-17 07:49:39,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:49:39,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:49:39,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 424 transitions. [2024-11-17 07:49:39,192 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6057142857142858 [2024-11-17 07:49:39,192 INFO L175 Difference]: Start difference. First operand has 191 places, 161 transitions, 589 flow. Second operand 4 states and 424 transitions. [2024-11-17 07:49:39,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 232 transitions, 1057 flow [2024-11-17 07:49:39,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 232 transitions, 1008 flow, removed 4 selfloop flow, removed 13 redundant places. [2024-11-17 07:49:39,197 INFO L231 Difference]: Finished difference. Result has 180 places, 160 transitions, 548 flow [2024-11-17 07:49:39,197 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=548, PETRI_PLACES=180, PETRI_TRANSITIONS=160} [2024-11-17 07:49:39,197 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 39 predicate places. [2024-11-17 07:49:39,197 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 160 transitions, 548 flow [2024-11-17 07:49:39,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:39,198 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:39,198 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:39,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-17 07:49:39,402 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,SelfDestructingSolverStorable15 [2024-11-17 07:49:39,403 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:49:39,403 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:39,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1673661272, now seen corresponding path program 1 times [2024-11-17 07:49:39,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:39,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1415119065] [2024-11-17 07:49:39,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:39,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:39,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:39,467 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-17 07:49:39,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:39,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1415119065] [2024-11-17 07:49:39,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1415119065] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:39,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:39,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:49:39,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237651467] [2024-11-17 07:49:39,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:39,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:49:39,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:39,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:49:39,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:49:39,477 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 175 [2024-11-17 07:49:39,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 160 transitions, 548 flow. Second operand has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:39,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:39,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 175 [2024-11-17 07:49:39,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:43,428 INFO L124 PetriNetUnfolderBase]: 17779/36929 cut-off events. [2024-11-17 07:49:43,428 INFO L125 PetriNetUnfolderBase]: For 3419/3419 co-relation queries the response was YES. [2024-11-17 07:49:43,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66398 conditions, 36929 events. 17779/36929 cut-off events. For 3419/3419 co-relation queries the response was YES. Maximal size of possible extension queue 1064. Compared 374814 event pairs, 705 based on Foata normal form. 361/34949 useless extension candidates. Maximal degree in co-relation 66234. Up to 24036 conditions per place. [2024-11-17 07:49:43,666 INFO L140 encePairwiseOnDemand]: 170/175 looper letters, 157 selfloop transitions, 6 changer transitions 0/232 dead transitions. [2024-11-17 07:49:43,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 232 transitions, 1016 flow [2024-11-17 07:49:43,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:49:43,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:49:43,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 427 transitions. [2024-11-17 07:49:43,670 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.61 [2024-11-17 07:49:43,670 INFO L175 Difference]: Start difference. First operand has 180 places, 160 transitions, 548 flow. Second operand 4 states and 427 transitions. [2024-11-17 07:49:43,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 232 transitions, 1016 flow [2024-11-17 07:49:43,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 232 transitions, 1004 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:49:43,678 INFO L231 Difference]: Finished difference. Result has 180 places, 160 transitions, 552 flow [2024-11-17 07:49:43,679 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=552, PETRI_PLACES=180, PETRI_TRANSITIONS=160} [2024-11-17 07:49:43,679 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 39 predicate places. [2024-11-17 07:49:43,679 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 160 transitions, 552 flow [2024-11-17 07:49:43,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:43,680 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:43,680 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:43,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-17 07:49:43,680 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:49:43,680 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:43,680 INFO L85 PathProgramCache]: Analyzing trace with hash -942830704, now seen corresponding path program 1 times [2024-11-17 07:49:43,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:43,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134229095] [2024-11-17 07:49:43,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:43,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:43,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:44,579 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-17 07:49:44,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:44,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134229095] [2024-11-17 07:49:44,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134229095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:44,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:44,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:49:44,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953811891] [2024-11-17 07:49:44,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:44,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:49:44,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:44,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:49:44,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:49:44,602 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 175 [2024-11-17 07:49:44,603 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 160 transitions, 552 flow. Second operand has 5 states, 5 states have (on average 76.6) internal successors, (383), 5 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:44,603 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:44,603 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 175 [2024-11-17 07:49:44,603 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:48,846 INFO L124 PetriNetUnfolderBase]: 20371/43566 cut-off events. [2024-11-17 07:49:48,846 INFO L125 PetriNetUnfolderBase]: For 3645/3663 co-relation queries the response was YES. [2024-11-17 07:49:49,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76780 conditions, 43566 events. 20371/43566 cut-off events. For 3645/3663 co-relation queries the response was YES. Maximal size of possible extension queue 1298. Compared 467160 event pairs, 2757 based on Foata normal form. 540/40943 useless extension candidates. Maximal degree in co-relation 76616. Up to 22457 conditions per place. [2024-11-17 07:49:49,142 INFO L140 encePairwiseOnDemand]: 167/175 looper letters, 233 selfloop transitions, 11 changer transitions 0/315 dead transitions. [2024-11-17 07:49:49,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 315 transitions, 1427 flow [2024-11-17 07:49:49,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:49:49,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:49:49,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 668 transitions. [2024-11-17 07:49:49,144 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6361904761904762 [2024-11-17 07:49:49,144 INFO L175 Difference]: Start difference. First operand has 180 places, 160 transitions, 552 flow. Second operand 6 states and 668 transitions. [2024-11-17 07:49:49,144 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 315 transitions, 1427 flow [2024-11-17 07:49:49,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 315 transitions, 1408 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:49:49,149 INFO L231 Difference]: Finished difference. Result has 187 places, 172 transitions, 627 flow [2024-11-17 07:49:49,149 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=627, PETRI_PLACES=187, PETRI_TRANSITIONS=172} [2024-11-17 07:49:49,149 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 46 predicate places. [2024-11-17 07:49:49,150 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 172 transitions, 627 flow [2024-11-17 07:49:49,150 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.6) internal successors, (383), 5 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:49,150 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:49,150 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:49,150 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-17 07:49:49,150 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:49:49,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:49,151 INFO L85 PathProgramCache]: Analyzing trace with hash -231626493, now seen corresponding path program 1 times [2024-11-17 07:49:49,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:49,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977606715] [2024-11-17 07:49:49,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:49,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 07:49:49,169 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 07:49:49,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 07:49:49,194 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 07:49:49,194 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-17 07:49:49,194 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-17 07:49:49,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 23 remaining) [2024-11-17 07:49:49,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 23 remaining) [2024-11-17 07:49:49,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 23 remaining) [2024-11-17 07:49:49,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 23 remaining) [2024-11-17 07:49:49,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 23 remaining) [2024-11-17 07:49:49,196 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 23 remaining) [2024-11-17 07:49:49,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 23 remaining) [2024-11-17 07:49:49,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 23 remaining) [2024-11-17 07:49:49,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 23 remaining) [2024-11-17 07:49:49,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 23 remaining) [2024-11-17 07:49:49,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 23 remaining) [2024-11-17 07:49:49,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 23 remaining) [2024-11-17 07:49:49,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 23 remaining) [2024-11-17 07:49:49,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 23 remaining) [2024-11-17 07:49:49,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 23 remaining) [2024-11-17 07:49:49,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 23 remaining) [2024-11-17 07:49:49,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 23 remaining) [2024-11-17 07:49:49,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 23 remaining) [2024-11-17 07:49:49,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 23 remaining) [2024-11-17 07:49:49,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 23 remaining) [2024-11-17 07:49:49,197 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 23 remaining) [2024-11-17 07:49:49,198 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 23 remaining) [2024-11-17 07:49:49,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-17 07:49:49,198 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:49,202 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-17 07:49:49,202 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-17 07:49:49,234 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-17 07:49:49,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 180 places, 224 transitions, 475 flow [2024-11-17 07:49:49,265 INFO L124 PetriNetUnfolderBase]: 99/461 cut-off events. [2024-11-17 07:49:49,266 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-17 07:49:49,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486 conditions, 461 events. 99/461 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2219 event pairs, 1 based on Foata normal form. 0/308 useless extension candidates. Maximal degree in co-relation 317. Up to 16 conditions per place. [2024-11-17 07:49:49,269 INFO L82 GeneralOperation]: Start removeDead. Operand has 180 places, 224 transitions, 475 flow [2024-11-17 07:49:49,272 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 180 places, 224 transitions, 475 flow [2024-11-17 07:49:49,273 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:49:49,273 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;@318cbbac, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:49:49,277 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2024-11-17 07:49:49,278 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:49:49,278 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events. [2024-11-17 07:49:49,279 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:49:49,279 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:49,279 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 07:49:49,279 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-17 07:49:49,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:49,279 INFO L85 PathProgramCache]: Analyzing trace with hash 33471091, now seen corresponding path program 1 times [2024-11-17 07:49:49,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:49,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810785048] [2024-11-17 07:49:49,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:49,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:49,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:49,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:49,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810785048] [2024-11-17 07:49:49,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810785048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:49,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:49,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:49:49,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886735734] [2024-11-17 07:49:49,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:49,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:49:49,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:49,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:49:49,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:49:49,320 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 224 [2024-11-17 07:49:49,320 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 224 transitions, 475 flow. Second operand has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:49,320 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:49,321 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 224 [2024-11-17 07:49:49,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand