./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_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_79-equ_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 5ac72ff2379990464c5f55660be1e08b12557a61aceeef8401296ef66be035fc --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:49:18,279 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:49:18,346 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:49:18,352 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:49:18,353 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:49:18,381 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:49:18,381 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:49:18,382 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:49:18,382 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:49:18,383 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:49:18,384 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:49:18,384 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:49:18,384 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:49:18,386 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:49:18,387 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:49:18,387 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:49:18,387 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:49:18,387 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:49:18,388 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:49:18,388 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:49:18,388 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:49:18,392 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:49:18,392 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:49:18,393 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:49:18,393 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:49:18,393 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:49:18,393 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:49:18,393 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:49:18,394 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:49:18,394 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:49:18,394 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:49:18,394 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:49:18,394 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:49:18,395 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:49:18,395 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:49:18,395 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:49:18,395 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:49:18,395 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:49:18,396 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:49:18,396 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:49:18,396 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:49:18,398 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:49:18,398 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:49:18,399 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:49:18,399 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ac72ff2379990464c5f55660be1e08b12557a61aceeef8401296ef66be035fc [2024-11-17 07:49:18,645 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:49:18,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:49:18,674 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:49:18,675 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:49:18,675 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:49:18,677 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i [2024-11-17 07:49:20,108 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:49:20,403 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:49:20,405 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_79-equ_racefree.i [2024-11-17 07:49:20,429 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ac265aab/aeaa4c7131e94e5fb40d0ba5de0a222d/FLAGf5feb33b3 [2024-11-17 07:49:20,446 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ac265aab/aeaa4c7131e94e5fb40d0ba5de0a222d [2024-11-17 07:49:20,449 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:49:20,451 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:49:20,454 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:49:20,454 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:49:20,460 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:49:20,461 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:49:20" (1/1) ... [2024-11-17 07:49:20,462 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24a21417 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:20, skipping insertion in model container [2024-11-17 07:49:20,462 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:49:20" (1/1) ... [2024-11-17 07:49:20,513 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:49:21,045 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:49:21,066 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:49:21,125 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:49:21,185 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:49:21,185 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:21 WrapperNode [2024-11-17 07:49:21,186 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:49:21,187 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:49:21,187 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:49:21,188 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:49:21,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:21" (1/1) ... [2024-11-17 07:49:21,222 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:21" (1/1) ... [2024-11-17 07:49:21,258 INFO L138 Inliner]: procedures = 272, calls = 65, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 234 [2024-11-17 07:49:21,261 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:49:21,262 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:49:21,263 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:49:21,263 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:49:21,273 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:21" (1/1) ... [2024-11-17 07:49:21,273 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:21" (1/1) ... [2024-11-17 07:49:21,277 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:21" (1/1) ... [2024-11-17 07:49:21,303 INFO L175 MemorySlicer]: Split 35 memory accesses to 4 slices as follows [2, 5, 26, 2]. 74 percent of accesses are in the largest equivalence class. The 23 initializations are split as follows [2, 5, 16, 0]. The 5 writes are split as follows [0, 0, 4, 1]. [2024-11-17 07:49:21,306 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:21" (1/1) ... [2024-11-17 07:49:21,306 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:21" (1/1) ... [2024-11-17 07:49:21,318 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:21" (1/1) ... [2024-11-17 07:49:21,322 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:21" (1/1) ... [2024-11-17 07:49:21,324 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:21" (1/1) ... [2024-11-17 07:49:21,325 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:21" (1/1) ... [2024-11-17 07:49:21,332 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:49:21,333 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:49:21,336 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:49:21,336 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:49:21,337 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:21" (1/1) ... [2024-11-17 07:49:21,344 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:49:21,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:49:21,375 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 07:49:21,378 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 07:49:21,424 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 07:49:21,425 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 07:49:21,425 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-17 07:49:21,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 07:49:21,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 07:49:21,425 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 07:49:21,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-17 07:49:21,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 07:49:21,426 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 07:49:21,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-17 07:49:21,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-17 07:49:21,428 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-17 07:49:21,428 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:49:21,428 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-17 07:49:21,428 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-17 07:49:21,428 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:49:21,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 07:49:21,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 07:49:21,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-17 07:49:21,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:49:21,430 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:49:21,432 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 07:49:21,608 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:49:21,610 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:49:21,879 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1036: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2024-11-17 07:49:21,879 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1036-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2024-11-17 07:49:21,942 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:49:21,943 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:49:22,147 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:49:22,147 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:49:22,147 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:49:22 BoogieIcfgContainer [2024-11-17 07:49:22,148 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:49:22,150 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:49:22,150 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:49:22,155 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:49:22,155 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:49:20" (1/3) ... [2024-11-17 07:49:22,156 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec79d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:49:22, skipping insertion in model container [2024-11-17 07:49:22,156 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:21" (2/3) ... [2024-11-17 07:49:22,157 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ec79d2d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:49:22, skipping insertion in model container [2024-11-17 07:49:22,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:49:22" (3/3) ... [2024-11-17 07:49:22,159 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_79-equ_racefree.i [2024-11-17 07:49:22,176 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:49:22,176 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-17 07:49:22,176 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:49:22,246 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-17 07:49:22,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 131 transitions, 269 flow [2024-11-17 07:49:22,380 INFO L124 PetriNetUnfolderBase]: 40/188 cut-off events. [2024-11-17 07:49:22,381 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-17 07:49:22,396 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 188 events. 40/188 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 717 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 109. Up to 8 conditions per place. [2024-11-17 07:49:22,396 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 131 transitions, 269 flow [2024-11-17 07:49:22,408 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 129 transitions, 265 flow [2024-11-17 07:49:22,421 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:49:22,427 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;@329ff8b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:49:22,427 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-17 07:49:22,454 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:49:22,454 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-17 07:49:22,455 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:49:22,455 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:22,456 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 07:49:22,456 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-17 07:49:22,463 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:22,463 INFO L85 PathProgramCache]: Analyzing trace with hash 18133870, now seen corresponding path program 1 times [2024-11-17 07:49:22,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:22,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163544690] [2024-11-17 07:49:22,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:22,475 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:22,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:22,789 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 07:49:22,790 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:22,790 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163544690] [2024-11-17 07:49:22,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163544690] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:22,791 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:22,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:49:22,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204606486] [2024-11-17 07:49:22,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:22,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:49:22,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:22,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:49:22,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:49:22,846 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 131 [2024-11-17 07:49:22,850 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 129 transitions, 265 flow. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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 07:49:22,850 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:22,850 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 131 [2024-11-17 07:49:22,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:23,448 INFO L124 PetriNetUnfolderBase]: 833/2775 cut-off events. [2024-11-17 07:49:23,449 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-17 07:49:23,463 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4435 conditions, 2775 events. 833/2775 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 23374 event pairs, 714 based on Foata normal form. 838/3368 useless extension candidates. Maximal degree in co-relation 2145. Up to 852 conditions per place. [2024-11-17 07:49:23,480 INFO L140 encePairwiseOnDemand]: 103/131 looper letters, 86 selfloop transitions, 5 changer transitions 0/148 dead transitions. [2024-11-17 07:49:23,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 148 transitions, 491 flow [2024-11-17 07:49:23,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:49:23,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:49:23,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 364 transitions. [2024-11-17 07:49:23,496 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6946564885496184 [2024-11-17 07:49:23,499 INFO L175 Difference]: Start difference. First operand has 107 places, 129 transitions, 265 flow. Second operand 4 states and 364 transitions. [2024-11-17 07:49:23,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 148 transitions, 491 flow [2024-11-17 07:49:23,504 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 148 transitions, 491 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:49:23,509 INFO L231 Difference]: Finished difference. Result has 110 places, 107 transitions, 238 flow [2024-11-17 07:49:23,511 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=238, PETRI_PLACES=110, PETRI_TRANSITIONS=107} [2024-11-17 07:49:23,517 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 3 predicate places. [2024-11-17 07:49:23,517 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 107 transitions, 238 flow [2024-11-17 07:49:23,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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 07:49:23,518 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:23,518 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 07:49:23,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:49:23,519 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-17 07:49:23,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:23,519 INFO L85 PathProgramCache]: Analyzing trace with hash 18133836, now seen corresponding path program 1 times [2024-11-17 07:49:23,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:23,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741240731] [2024-11-17 07:49:23,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:23,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:23,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:23,584 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 07:49:23,584 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:23,584 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741240731] [2024-11-17 07:49:23,584 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741240731] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:23,585 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:23,585 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:49:23,585 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804575999] [2024-11-17 07:49:23,585 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:23,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:49:23,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:23,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:49:23,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:49:23,592 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 131 [2024-11-17 07:49:23,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 107 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 07:49:23,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:23,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 131 [2024-11-17 07:49:23,593 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:23,967 INFO L124 PetriNetUnfolderBase]: 833/2781 cut-off events. [2024-11-17 07:49:23,968 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-17 07:49:23,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4506 conditions, 2781 events. 833/2781 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 23419 event pairs, 731 based on Foata normal form. 1/2538 useless extension candidates. Maximal degree in co-relation 2251. Up to 1650 conditions per place. [2024-11-17 07:49:23,986 INFO L140 encePairwiseOnDemand]: 128/131 looper letters, 48 selfloop transitions, 2 changer transitions 0/106 dead transitions. [2024-11-17 07:49:23,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 106 transitions, 336 flow [2024-11-17 07:49:23,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:49:23,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:49:23,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 221 transitions. [2024-11-17 07:49:23,988 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5623409669211196 [2024-11-17 07:49:23,989 INFO L175 Difference]: Start difference. First operand has 110 places, 107 transitions, 238 flow. Second operand 3 states and 221 transitions. [2024-11-17 07:49:23,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 106 transitions, 336 flow [2024-11-17 07:49:23,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 106 transitions, 331 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:49:23,992 INFO L231 Difference]: Finished difference. Result has 109 places, 106 transitions, 235 flow [2024-11-17 07:49:23,992 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=235, PETRI_PLACES=109, PETRI_TRANSITIONS=106} [2024-11-17 07:49:23,993 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 2 predicate places. [2024-11-17 07:49:23,993 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 106 transitions, 235 flow [2024-11-17 07:49:23,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 07:49:23,994 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:23,994 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-17 07:49:23,994 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 07:49:23,994 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-17 07:49:23,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:23,995 INFO L85 PathProgramCache]: Analyzing trace with hash 562149359, now seen corresponding path program 1 times [2024-11-17 07:49:23,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:23,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514232217] [2024-11-17 07:49:23,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:23,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:24,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:24,067 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 07:49:24,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:24,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514232217] [2024-11-17 07:49:24,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514232217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:24,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:24,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:49:24,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263200818] [2024-11-17 07:49:24,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:24,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:49:24,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:24,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:49:24,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:49:24,078 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 131 [2024-11-17 07:49:24,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 106 transitions, 235 flow. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 07:49:24,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:24,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 131 [2024-11-17 07:49:24,082 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:24,419 INFO L124 PetriNetUnfolderBase]: 833/2780 cut-off events. [2024-11-17 07:49:24,419 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-17 07:49:24,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4485 conditions, 2780 events. 833/2780 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 23412 event pairs, 731 based on Foata normal form. 1/2537 useless extension candidates. Maximal degree in co-relation 2264. Up to 1650 conditions per place. [2024-11-17 07:49:24,436 INFO L140 encePairwiseOnDemand]: 128/131 looper letters, 47 selfloop transitions, 2 changer transitions 0/105 dead transitions. [2024-11-17 07:49:24,437 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 105 transitions, 331 flow [2024-11-17 07:49:24,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:49:24,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:49:24,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 220 transitions. [2024-11-17 07:49:24,439 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5597964376590331 [2024-11-17 07:49:24,439 INFO L175 Difference]: Start difference. First operand has 109 places, 106 transitions, 235 flow. Second operand 3 states and 220 transitions. [2024-11-17 07:49:24,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 105 transitions, 331 flow [2024-11-17 07:49:24,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 105 transitions, 327 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:49:24,445 INFO L231 Difference]: Finished difference. Result has 108 places, 105 transitions, 233 flow [2024-11-17 07:49:24,445 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=233, PETRI_PLACES=108, PETRI_TRANSITIONS=105} [2024-11-17 07:49:24,446 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 1 predicate places. [2024-11-17 07:49:24,446 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 105 transitions, 233 flow [2024-11-17 07:49:24,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 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 07:49:24,447 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:24,447 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-17 07:49:24,447 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 07:49:24,447 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-17 07:49:24,447 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:24,448 INFO L85 PathProgramCache]: Analyzing trace with hash 562150451, now seen corresponding path program 1 times [2024-11-17 07:49:24,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:24,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222986956] [2024-11-17 07:49:24,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:24,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:24,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:24,533 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 07:49:24,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:24,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222986956] [2024-11-17 07:49:24,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222986956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:24,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:24,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:49:24,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674546348] [2024-11-17 07:49:24,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:24,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:49:24,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:24,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:49:24,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:49:24,545 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 131 [2024-11-17 07:49:24,546 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 105 transitions, 233 flow. Second operand has 5 states, 5 states have (on average 57.8) internal successors, (289), 5 states have internal predecessors, (289), 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 07:49:24,546 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:24,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 131 [2024-11-17 07:49:24,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:24,934 INFO L124 PetriNetUnfolderBase]: 833/2772 cut-off events. [2024-11-17 07:49:24,934 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-17 07:49:24,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4477 conditions, 2772 events. 833/2772 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 23413 event pairs, 714 based on Foata normal form. 1/2530 useless extension candidates. Maximal degree in co-relation 2244. Up to 1591 conditions per place. [2024-11-17 07:49:24,948 INFO L140 encePairwiseOnDemand]: 124/131 looper letters, 51 selfloop transitions, 7 changer transitions 8/121 dead transitions. [2024-11-17 07:49:24,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 121 transitions, 397 flow [2024-11-17 07:49:24,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:49:24,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:49:24,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 351 transitions. [2024-11-17 07:49:24,950 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5358778625954198 [2024-11-17 07:49:24,950 INFO L175 Difference]: Start difference. First operand has 108 places, 105 transitions, 233 flow. Second operand 5 states and 351 transitions. [2024-11-17 07:49:24,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 121 transitions, 397 flow [2024-11-17 07:49:24,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 121 transitions, 393 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:49:24,953 INFO L231 Difference]: Finished difference. Result has 109 places, 104 transitions, 241 flow [2024-11-17 07:49:24,954 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=241, PETRI_PLACES=109, PETRI_TRANSITIONS=104} [2024-11-17 07:49:24,954 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 2 predicate places. [2024-11-17 07:49:24,955 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 104 transitions, 241 flow [2024-11-17 07:49:24,955 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.8) internal successors, (289), 5 states have internal predecessors, (289), 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 07:49:24,955 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:24,955 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:24,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 07:49:24,956 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-17 07:49:24,956 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:24,956 INFO L85 PathProgramCache]: Analyzing trace with hash -443083488, now seen corresponding path program 1 times [2024-11-17 07:49:24,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:24,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740242489] [2024-11-17 07:49:24,957 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:24,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:25,033 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 07:49:25,033 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:25,033 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740242489] [2024-11-17 07:49:25,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740242489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:25,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:25,034 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:49:25,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735835592] [2024-11-17 07:49:25,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:25,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:49:25,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:25,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:49:25,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:49:25,051 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 131 [2024-11-17 07:49:25,051 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 104 transitions, 241 flow. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 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 07:49:25,052 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:25,052 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 131 [2024-11-17 07:49:25,052 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:25,432 INFO L124 PetriNetUnfolderBase]: 936/2890 cut-off events. [2024-11-17 07:49:25,433 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-11-17 07:49:25,437 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4820 conditions, 2890 events. 936/2890 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 23817 event pairs, 270 based on Foata normal form. 36/2687 useless extension candidates. Maximal degree in co-relation 2388. Up to 1729 conditions per place. [2024-11-17 07:49:25,448 INFO L140 encePairwiseOnDemand]: 125/131 looper letters, 84 selfloop transitions, 3 changer transitions 0/137 dead transitions. [2024-11-17 07:49:25,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 137 transitions, 481 flow [2024-11-17 07:49:25,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:49:25,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:49:25,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 305 transitions. [2024-11-17 07:49:25,450 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5820610687022901 [2024-11-17 07:49:25,450 INFO L175 Difference]: Start difference. First operand has 109 places, 104 transitions, 241 flow. Second operand 4 states and 305 transitions. [2024-11-17 07:49:25,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 137 transitions, 481 flow [2024-11-17 07:49:25,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 137 transitions, 467 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 07:49:25,458 INFO L231 Difference]: Finished difference. Result has 107 places, 102 transitions, 233 flow [2024-11-17 07:49:25,460 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=233, PETRI_PLACES=107, PETRI_TRANSITIONS=102} [2024-11-17 07:49:25,462 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 0 predicate places. [2024-11-17 07:49:25,463 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 102 transitions, 233 flow [2024-11-17 07:49:25,463 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 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 07:49:25,463 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:25,464 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:25,464 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 07:49:25,464 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-17 07:49:25,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:25,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1823881147, now seen corresponding path program 1 times [2024-11-17 07:49:25,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:25,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403074838] [2024-11-17 07:49:25,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:25,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:25,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 07:49:25,489 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 07:49:25,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 07:49:25,528 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 07:49:25,529 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-17 07:49:25,530 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-11-17 07:49:25,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2024-11-17 07:49:25,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2024-11-17 07:49:25,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2024-11-17 07:49:25,532 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2024-11-17 07:49:25,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2024-11-17 07:49:25,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2024-11-17 07:49:25,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2024-11-17 07:49:25,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2024-11-17 07:49:25,533 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2024-11-17 07:49:25,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2024-11-17 07:49:25,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2024-11-17 07:49:25,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2024-11-17 07:49:25,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2024-11-17 07:49:25,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2024-11-17 07:49:25,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2024-11-17 07:49:25,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2024-11-17 07:49:25,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2024-11-17 07:49:25,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2024-11-17 07:49:25,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2024-11-17 07:49:25,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2024-11-17 07:49:25,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 07:49:25,536 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-17 07:49:25,539 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-17 07:49:25,539 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-17 07:49:25,574 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-17 07:49:25,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 180 transitions, 376 flow [2024-11-17 07:49:25,603 INFO L124 PetriNetUnfolderBase]: 67/317 cut-off events. [2024-11-17 07:49:25,603 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-17 07:49:25,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 317 events. 67/317 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1400 event pairs, 0 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 190. Up to 12 conditions per place. [2024-11-17 07:49:25,606 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 180 transitions, 376 flow [2024-11-17 07:49:25,610 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 179 transitions, 374 flow [2024-11-17 07:49:25,611 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:49:25,612 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;@329ff8b4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:49:25,612 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-17 07:49:25,614 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:49:25,614 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-17 07:49:25,614 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:49:25,614 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:25,614 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 07:49:25,614 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-17 07:49:25,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:25,615 INFO L85 PathProgramCache]: Analyzing trace with hash 23674990, now seen corresponding path program 1 times [2024-11-17 07:49:25,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:25,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421932594] [2024-11-17 07:49:25,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:25,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:25,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:25,656 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 07:49:25,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:25,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421932594] [2024-11-17 07:49:25,657 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421932594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:25,657 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:25,657 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:49:25,657 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758164328] [2024-11-17 07:49:25,658 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:25,658 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:49:25,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:25,658 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:49:25,658 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:49:25,669 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 180 [2024-11-17 07:49:25,670 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 179 transitions, 374 flow. Second operand has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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 07:49:25,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:25,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 180 [2024-11-17 07:49:25,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:31,885 INFO L124 PetriNetUnfolderBase]: 30585/68167 cut-off events. [2024-11-17 07:49:31,885 INFO L125 PetriNetUnfolderBase]: For 238/238 co-relation queries the response was YES. [2024-11-17 07:49:32,053 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113844 conditions, 68167 events. 30585/68167 cut-off events. For 238/238 co-relation queries the response was YES. Maximal size of possible extension queue 2049. Compared 797397 event pairs, 27200 based on Foata normal form. 23455/85545 useless extension candidates. Maximal degree in co-relation 25182. Up to 23436 conditions per place. [2024-11-17 07:49:32,391 INFO L140 encePairwiseOnDemand]: 142/180 looper letters, 126 selfloop transitions, 5 changer transitions 0/208 dead transitions. [2024-11-17 07:49:32,394 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 208 transitions, 708 flow [2024-11-17 07:49:32,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:49:32,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:49:32,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 504 transitions. [2024-11-17 07:49:32,396 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-11-17 07:49:32,397 INFO L175 Difference]: Start difference. First operand has 146 places, 179 transitions, 374 flow. Second operand 4 states and 504 transitions. [2024-11-17 07:49:32,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 208 transitions, 708 flow [2024-11-17 07:49:32,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 208 transitions, 708 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:49:32,402 INFO L231 Difference]: Finished difference. Result has 149 places, 147 transitions, 327 flow [2024-11-17 07:49:32,403 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=327, PETRI_PLACES=149, PETRI_TRANSITIONS=147} [2024-11-17 07:49:32,404 INFO L277 CegarLoopForPetriNet]: 146 programPoint places, 3 predicate places. [2024-11-17 07:49:32,404 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 147 transitions, 327 flow [2024-11-17 07:49:32,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 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 07:49:32,405 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:32,405 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 07:49:32,405 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 07:49:32,407 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-17 07:49:32,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:32,408 INFO L85 PathProgramCache]: Analyzing trace with hash 23674956, now seen corresponding path program 1 times [2024-11-17 07:49:32,408 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:32,408 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [214572757] [2024-11-17 07:49:32,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:32,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:32,449 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 07:49:32,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:32,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [214572757] [2024-11-17 07:49:32,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [214572757] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:32,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:32,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:49:32,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306051664] [2024-11-17 07:49:32,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:32,451 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:49:32,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:32,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:49:32,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:49:32,456 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 180 [2024-11-17 07:49:32,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 147 transitions, 327 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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 07:49:32,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:32,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 180 [2024-11-17 07:49:32,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:37,220 INFO L124 PetriNetUnfolderBase]: 30600/68461 cut-off events. [2024-11-17 07:49:37,220 INFO L125 PetriNetUnfolderBase]: For 702/702 co-relation queries the response was YES. [2024-11-17 07:49:37,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115244 conditions, 68461 events. 30600/68461 cut-off events. For 702/702 co-relation queries the response was YES. Maximal size of possible extension queue 2051. Compared 802856 event pairs, 27846 based on Foata normal form. 1/62279 useless extension candidates. Maximal degree in co-relation 58250. Up to 45499 conditions per place. [2024-11-17 07:49:37,720 INFO L140 encePairwiseOnDemand]: 177/180 looper letters, 68 selfloop transitions, 2 changer transitions 0/146 dead transitions. [2024-11-17 07:49:37,720 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 146 transitions, 465 flow [2024-11-17 07:49:37,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:49:37,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:49:37,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 301 transitions. [2024-11-17 07:49:37,723 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5574074074074075 [2024-11-17 07:49:37,723 INFO L175 Difference]: Start difference. First operand has 149 places, 147 transitions, 327 flow. Second operand 3 states and 301 transitions. [2024-11-17 07:49:37,723 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 146 transitions, 465 flow [2024-11-17 07:49:37,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 146 transitions, 460 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:49:37,729 INFO L231 Difference]: Finished difference. Result has 148 places, 146 transitions, 324 flow [2024-11-17 07:49:37,729 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=148, PETRI_TRANSITIONS=146} [2024-11-17 07:49:37,730 INFO L277 CegarLoopForPetriNet]: 146 programPoint places, 2 predicate places. [2024-11-17 07:49:37,731 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 146 transitions, 324 flow [2024-11-17 07:49:37,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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 07:49:37,732 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:37,732 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-17 07:49:37,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 07:49:37,732 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-17 07:49:37,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:37,733 INFO L85 PathProgramCache]: Analyzing trace with hash 733924259, now seen corresponding path program 1 times [2024-11-17 07:49:37,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:37,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755827967] [2024-11-17 07:49:37,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:37,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:37,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:37,768 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 07:49:37,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:37,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755827967] [2024-11-17 07:49:37,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755827967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:37,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:37,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:49:37,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592414689] [2024-11-17 07:49:37,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:37,770 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:49:37,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:37,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:49:37,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:49:37,775 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 180 [2024-11-17 07:49:37,776 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 146 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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 07:49:37,776 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:37,776 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 180 [2024-11-17 07:49:37,776 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:42,508 INFO L124 PetriNetUnfolderBase]: 30600/68460 cut-off events. [2024-11-17 07:49:42,509 INFO L125 PetriNetUnfolderBase]: For 702/702 co-relation queries the response was YES. [2024-11-17 07:49:42,656 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114881 conditions, 68460 events. 30600/68460 cut-off events. For 702/702 co-relation queries the response was YES. Maximal size of possible extension queue 2051. Compared 802657 event pairs, 27846 based on Foata normal form. 1/62278 useless extension candidates. Maximal degree in co-relation 58250. Up to 45499 conditions per place. [2024-11-17 07:49:42,855 INFO L140 encePairwiseOnDemand]: 177/180 looper letters, 67 selfloop transitions, 2 changer transitions 0/145 dead transitions. [2024-11-17 07:49:42,855 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 145 transitions, 460 flow [2024-11-17 07:49:42,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:49:42,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:49:42,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2024-11-17 07:49:42,857 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-11-17 07:49:42,857 INFO L175 Difference]: Start difference. First operand has 148 places, 146 transitions, 324 flow. Second operand 3 states and 300 transitions. [2024-11-17 07:49:42,857 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 145 transitions, 460 flow [2024-11-17 07:49:42,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 145 transitions, 456 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:49:42,861 INFO L231 Difference]: Finished difference. Result has 147 places, 145 transitions, 322 flow [2024-11-17 07:49:42,862 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=147, PETRI_TRANSITIONS=145} [2024-11-17 07:49:42,862 INFO L277 CegarLoopForPetriNet]: 146 programPoint places, 1 predicate places. [2024-11-17 07:49:42,862 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 145 transitions, 322 flow [2024-11-17 07:49:42,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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 07:49:42,863 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:42,863 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-17 07:49:42,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 07:49:42,863 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-17 07:49:42,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:42,864 INFO L85 PathProgramCache]: Analyzing trace with hash 733925351, now seen corresponding path program 1 times [2024-11-17 07:49:42,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:42,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232041135] [2024-11-17 07:49:42,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:42,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:42,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:42,917 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 07:49:42,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:42,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232041135] [2024-11-17 07:49:42,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232041135] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:42,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:42,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:49:42,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229986326] [2024-11-17 07:49:42,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:42,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:49:42,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:42,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:49:42,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:49:42,932 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 180 [2024-11-17 07:49:42,933 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 145 transitions, 322 flow. Second operand has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 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 07:49:42,933 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:42,933 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 180 [2024-11-17 07:49:42,933 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:47,701 INFO L124 PetriNetUnfolderBase]: 30585/68164 cut-off events. [2024-11-17 07:49:47,702 INFO L125 PetriNetUnfolderBase]: For 702/702 co-relation queries the response was YES. [2024-11-17 07:49:47,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114570 conditions, 68164 events. 30585/68164 cut-off events. For 702/702 co-relation queries the response was YES. Maximal size of possible extension queue 2048. Compared 796979 event pairs, 27200 based on Foata normal form. 1/62030 useless extension candidates. Maximal degree in co-relation 57940. Up to 44091 conditions per place. [2024-11-17 07:49:48,028 INFO L140 encePairwiseOnDemand]: 173/180 looper letters, 96 selfloop transitions, 7 changer transitions 0/178 dead transitions. [2024-11-17 07:49:48,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 178 transitions, 594 flow [2024-11-17 07:49:48,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:49:48,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:49:48,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 488 transitions. [2024-11-17 07:49:48,031 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5422222222222223 [2024-11-17 07:49:48,031 INFO L175 Difference]: Start difference. First operand has 147 places, 145 transitions, 322 flow. Second operand 5 states and 488 transitions. [2024-11-17 07:49:48,031 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 178 transitions, 594 flow [2024-11-17 07:49:48,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 178 transitions, 590 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:49:48,037 INFO L231 Difference]: Finished difference. Result has 148 places, 144 transitions, 330 flow [2024-11-17 07:49:48,037 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=330, PETRI_PLACES=148, PETRI_TRANSITIONS=144} [2024-11-17 07:49:48,038 INFO L277 CegarLoopForPetriNet]: 146 programPoint places, 2 predicate places. [2024-11-17 07:49:48,038 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 144 transitions, 330 flow [2024-11-17 07:49:48,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 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 07:49:48,039 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:48,039 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:48,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-17 07:49:48,040 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-17 07:49:48,043 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:48,043 INFO L85 PathProgramCache]: Analyzing trace with hash 331457987, now seen corresponding path program 1 times [2024-11-17 07:49:48,044 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:48,044 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535257954] [2024-11-17 07:49:48,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:48,044 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:48,099 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 07:49:48,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:48,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535257954] [2024-11-17 07:49:48,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535257954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:48,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:48,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:49:48,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [674084123] [2024-11-17 07:49:48,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:48,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:49:48,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:48,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:49:48,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:49:48,108 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 180 [2024-11-17 07:49:48,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 144 transitions, 330 flow. Second operand has 4 states, 4 states have (on average 76.25) internal successors, (305), 4 states have internal predecessors, (305), 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 07:49:48,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:48,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 180 [2024-11-17 07:49:48,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:53,336 INFO L124 PetriNetUnfolderBase]: 36152/77859 cut-off events. [2024-11-17 07:49:53,337 INFO L125 PetriNetUnfolderBase]: For 1252/1252 co-relation queries the response was YES. [2024-11-17 07:49:53,497 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133639 conditions, 77859 events. 36152/77859 cut-off events. For 1252/1252 co-relation queries the response was YES. Maximal size of possible extension queue 2146. Compared 898574 event pairs, 16371 based on Foata normal form. 36/70571 useless extension candidates. Maximal degree in co-relation 64633. Up to 54024 conditions per place. [2024-11-17 07:49:53,742 INFO L140 encePairwiseOnDemand]: 174/180 looper letters, 108 selfloop transitions, 3 changer transitions 0/181 dead transitions. [2024-11-17 07:49:53,742 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 181 transitions, 626 flow [2024-11-17 07:49:53,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:49:53,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:49:53,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 409 transitions. [2024-11-17 07:49:53,744 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5680555555555555 [2024-11-17 07:49:53,744 INFO L175 Difference]: Start difference. First operand has 148 places, 144 transitions, 330 flow. Second operand 4 states and 409 transitions. [2024-11-17 07:49:53,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 181 transitions, 626 flow [2024-11-17 07:49:53,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 181 transitions, 612 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 07:49:53,806 INFO L231 Difference]: Finished difference. Result has 149 places, 146 transitions, 340 flow [2024-11-17 07:49:53,807 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=340, PETRI_PLACES=149, PETRI_TRANSITIONS=146} [2024-11-17 07:49:53,807 INFO L277 CegarLoopForPetriNet]: 146 programPoint places, 3 predicate places. [2024-11-17 07:49:53,807 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 146 transitions, 340 flow [2024-11-17 07:49:53,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.25) internal successors, (305), 4 states have internal predecessors, (305), 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 07:49:53,808 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:53,808 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:53,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-17 07:49:53,808 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-17 07:49:53,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:53,809 INFO L85 PathProgramCache]: Analyzing trace with hash -335289951, now seen corresponding path program 1 times [2024-11-17 07:49:53,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:53,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103349434] [2024-11-17 07:49:53,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:53,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:53,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:53,885 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:53,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:53,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103349434] [2024-11-17 07:49:53,886 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103349434] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:49:53,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1266355838] [2024-11-17 07:49:53,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:53,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:49:53,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:49:53,889 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 07:49:53,890 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 07:49:53,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:53,992 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:49:53,995 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:49:54,056 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:54,056 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:49:54,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1266355838] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:54,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:49:54,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-17 07:49:54,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890898942] [2024-11-17 07:49:54,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:54,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:49:54,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:54,058 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:49:54,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:49:54,071 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 180 [2024-11-17 07:49:54,072 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 146 transitions, 340 flow. Second operand has 6 states, 6 states have (on average 76.16666666666667) internal successors, (457), 6 states have internal predecessors, (457), 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 07:49:54,073 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:54,073 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 180 [2024-11-17 07:49:54,073 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:58,880 INFO L124 PetriNetUnfolderBase]: 34073/69930 cut-off events. [2024-11-17 07:49:58,880 INFO L125 PetriNetUnfolderBase]: For 2308/2308 co-relation queries the response was YES. [2024-11-17 07:49:59,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125176 conditions, 69930 events. 34073/69930 cut-off events. For 2308/2308 co-relation queries the response was YES. Maximal size of possible extension queue 2009. Compared 782477 event pairs, 1836 based on Foata normal form. 648/65362 useless extension candidates. Maximal degree in co-relation 60846. Up to 40611 conditions per place. [2024-11-17 07:49:59,299 INFO L140 encePairwiseOnDemand]: 175/180 looper letters, 172 selfloop transitions, 6 changer transitions 0/248 dead transitions. [2024-11-17 07:49:59,299 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 248 transitions, 898 flow [2024-11-17 07:49:59,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:49:59,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:49:59,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 622 transitions. [2024-11-17 07:49:59,302 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.575925925925926 [2024-11-17 07:49:59,302 INFO L175 Difference]: Start difference. First operand has 149 places, 146 transitions, 340 flow. Second operand 6 states and 622 transitions. [2024-11-17 07:49:59,302 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 248 transitions, 898 flow [2024-11-17 07:49:59,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 248 transitions, 896 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:49:59,308 INFO L231 Difference]: Finished difference. Result has 152 places, 145 transitions, 346 flow [2024-11-17 07:49:59,309 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=346, PETRI_PLACES=152, PETRI_TRANSITIONS=145} [2024-11-17 07:49:59,309 INFO L277 CegarLoopForPetriNet]: 146 programPoint places, 6 predicate places. [2024-11-17 07:49:59,309 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 145 transitions, 346 flow [2024-11-17 07:49:59,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.16666666666667) internal successors, (457), 6 states have internal predecessors, (457), 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 07:49:59,310 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:59,310 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:59,326 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-17 07:49:59,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-17 07:49:59,511 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-17 07:49:59,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:59,512 INFO L85 PathProgramCache]: Analyzing trace with hash -1804053201, now seen corresponding path program 1 times [2024-11-17 07:49:59,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:59,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842746902] [2024-11-17 07:49:59,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:59,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:59,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:59,568 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 07:49:59,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:59,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842746902] [2024-11-17 07:49:59,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842746902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:59,570 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:59,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:49:59,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997308305] [2024-11-17 07:49:59,571 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:59,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:49:59,572 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:59,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:49:59,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:49:59,582 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 180 [2024-11-17 07:49:59,583 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 145 transitions, 346 flow. Second operand has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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 07:49:59,583 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:59,583 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 180 [2024-11-17 07:49:59,583 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:03,902 INFO L124 PetriNetUnfolderBase]: 32889/67750 cut-off events. [2024-11-17 07:50:03,903 INFO L125 PetriNetUnfolderBase]: For 5704/5704 co-relation queries the response was YES. [2024-11-17 07:50:04,055 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122566 conditions, 67750 events. 32889/67750 cut-off events. For 5704/5704 co-relation queries the response was YES. Maximal size of possible extension queue 1978. Compared 754933 event pairs, 1226 based on Foata normal form. 648/64036 useless extension candidates. Maximal degree in co-relation 59541. Up to 44495 conditions per place. [2024-11-17 07:50:04,236 INFO L140 encePairwiseOnDemand]: 175/180 looper letters, 137 selfloop transitions, 6 changer transitions 0/213 dead transitions. [2024-11-17 07:50:04,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 213 transitions, 766 flow [2024-11-17 07:50:04,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:50:04,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:50:04,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 437 transitions. [2024-11-17 07:50:04,238 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6069444444444444 [2024-11-17 07:50:04,238 INFO L175 Difference]: Start difference. First operand has 152 places, 145 transitions, 346 flow. Second operand 4 states and 437 transitions. [2024-11-17 07:50:04,238 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 213 transitions, 766 flow [2024-11-17 07:50:04,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 213 transitions, 756 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-17 07:50:04,250 INFO L231 Difference]: Finished difference. Result has 151 places, 145 transitions, 352 flow [2024-11-17 07:50:04,250 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=352, PETRI_PLACES=151, PETRI_TRANSITIONS=145} [2024-11-17 07:50:04,251 INFO L277 CegarLoopForPetriNet]: 146 programPoint places, 5 predicate places. [2024-11-17 07:50:04,251 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 145 transitions, 352 flow [2024-11-17 07:50:04,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 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 07:50:04,251 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:04,251 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:50:04,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-17 07:50:04,252 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-17 07:50:04,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:04,252 INFO L85 PathProgramCache]: Analyzing trace with hash 370003938, now seen corresponding path program 1 times [2024-11-17 07:50:04,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:04,253 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258145274] [2024-11-17 07:50:04,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:04,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:04,331 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 07:50:04,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:04,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258145274] [2024-11-17 07:50:04,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258145274] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:50:04,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:50:04,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:50:04,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232864801] [2024-11-17 07:50:04,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:50:04,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:50:04,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:04,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:50:04,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:50:04,337 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 180 [2024-11-17 07:50:04,338 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 145 transitions, 352 flow. Second operand has 4 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 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 07:50:04,338 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:04,338 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 180 [2024-11-17 07:50:04,338 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand