./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_75-tricky_address2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_75-tricky_address2_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3c0354ee6107efc04d15102ecf9eef73430e38e14b70f16419cd07cd733fd0df --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:19:36,737 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:19:36,801 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:19:36,807 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:19:36,809 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:19:36,837 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:19:36,837 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:19:36,838 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:19:36,838 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:19:36,839 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:19:36,839 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:19:36,839 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:19:36,840 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:19:36,841 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:19:36,842 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:19:36,843 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:19:36,843 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:19:36,843 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:19:36,843 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:19:36,844 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:19:36,844 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:19:36,848 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:19:36,848 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:19:36,849 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:19:36,849 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:19:36,849 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:19:36,849 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:19:36,849 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:19:36,849 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:19:36,850 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:19:36,850 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:19:36,850 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:19:36,850 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:19:36,850 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:19:36,850 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:19:36,851 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:19:36,851 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:19:36,851 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:19:36,851 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:19:36,851 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:19:36,852 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:19:36,852 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:19:36,853 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:19:36,854 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:19:36,854 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3c0354ee6107efc04d15102ecf9eef73430e38e14b70f16419cd07cd733fd0df [2024-11-10 22:19:37,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:19:37,094 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:19:37,097 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:19:37,098 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:19:37,099 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:19:37,099 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_75-tricky_address2_racefree.i [2024-11-10 22:19:38,422 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:19:38,667 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:19:38,668 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_75-tricky_address2_racefree.i [2024-11-10 22:19:38,685 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/876aea426/607e7e5b10374578b425af71f0790153/FLAG691b5d8e3 [2024-11-10 22:19:38,700 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/876aea426/607e7e5b10374578b425af71f0790153 [2024-11-10 22:19:38,703 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:19:38,704 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:19:38,705 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:19:38,705 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:19:38,709 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:19:38,710 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:19:38" (1/1) ... [2024-11-10 22:19:38,711 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@59b4789e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:38, skipping insertion in model container [2024-11-10 22:19:38,711 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:19:38" (1/1) ... [2024-11-10 22:19:38,754 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:19:39,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:19:39,152 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:19:39,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:19:39,275 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:19:39,275 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:39 WrapperNode [2024-11-10 22:19:39,275 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:19:39,276 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:19:39,276 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:19:39,277 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:19:39,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:39" (1/1) ... [2024-11-10 22:19:39,306 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:39" (1/1) ... [2024-11-10 22:19:39,345 INFO L138 Inliner]: procedures = 271, calls = 110, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 277 [2024-11-10 22:19:39,345 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:19:39,346 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:19:39,348 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:19:39,348 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:19:39,357 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:39" (1/1) ... [2024-11-10 22:19:39,357 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:39" (1/1) ... [2024-11-10 22:19:39,361 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:39" (1/1) ... [2024-11-10 22:19:39,384 INFO L175 MemorySlicer]: Split 79 memory accesses to 4 slices as follows [2, 2, 5, 70]. 89 percent of accesses are in the largest equivalence class. The 67 initializations are split as follows [2, 0, 5, 60]. The 5 writes are split as follows [0, 1, 0, 4]. [2024-11-10 22:19:39,385 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:39" (1/1) ... [2024-11-10 22:19:39,388 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:39" (1/1) ... [2024-11-10 22:19:39,401 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:39" (1/1) ... [2024-11-10 22:19:39,406 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:39" (1/1) ... [2024-11-10 22:19:39,407 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:39" (1/1) ... [2024-11-10 22:19:39,409 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:39" (1/1) ... [2024-11-10 22:19:39,411 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:19:39,416 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:19:39,416 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:19:39,416 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:19:39,417 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:39" (1/1) ... [2024-11-10 22:19:39,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:19:39,441 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:19:39,456 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) [2024-11-10 22:19:39,462 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 [2024-11-10 22:19:39,502 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 22:19:39,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 22:19:39,503 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-10 22:19:39,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 22:19:39,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 22:19:39,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 22:19:39,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 22:19:39,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 22:19:39,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 22:19:39,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 22:19:39,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 22:19:39,504 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-10 22:19:39,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:19:39,504 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-10 22:19:39,505 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-10 22:19:39,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:19:39,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 22:19:39,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 22:19:39,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 22:19:39,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:19:39,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:19:39,508 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 22:19:39,620 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:19:39,622 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:19:39,896 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L953: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2024-11-10 22:19:39,897 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L953-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2024-11-10 22:19:39,978 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:19:39,979 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:19:40,277 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:19:40,277 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:19:40,278 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:19:40 BoogieIcfgContainer [2024-11-10 22:19:40,278 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:19:40,279 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:19:40,279 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:19:40,282 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:19:40,282 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:19:38" (1/3) ... [2024-11-10 22:19:40,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe3dcd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:19:40, skipping insertion in model container [2024-11-10 22:19:40,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:19:39" (2/3) ... [2024-11-10 22:19:40,283 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fe3dcd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:19:40, skipping insertion in model container [2024-11-10 22:19:40,283 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:19:40" (3/3) ... [2024-11-10 22:19:40,284 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_75-tricky_address2_racefree.i [2024-11-10 22:19:40,297 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:19:40,297 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-10 22:19:40,297 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:19:40,335 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-10 22:19:40,364 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 102 places, 126 transitions, 259 flow [2024-11-10 22:19:40,420 INFO L124 PetriNetUnfolderBase]: 40/182 cut-off events. [2024-11-10 22:19:40,422 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 22:19:40,427 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 182 events. 40/182 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 712 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 108. Up to 8 conditions per place. [2024-11-10 22:19:40,427 INFO L82 GeneralOperation]: Start removeDead. Operand has 102 places, 126 transitions, 259 flow [2024-11-10 22:19:40,431 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 125 transitions, 257 flow [2024-11-10 22:19:40,445 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:19:40,452 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;@5dcbd661, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:19:40,453 INFO L334 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2024-11-10 22:19:40,457 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:19:40,458 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events. [2024-11-10 22:19:40,458 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:19:40,458 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:19:40,459 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 22:19:40,459 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-10 22:19:40,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:19:40,464 INFO L85 PathProgramCache]: Analyzing trace with hash 21188275, now seen corresponding path program 1 times [2024-11-10 22:19:40,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:19:40,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107874868] [2024-11-10 22:19:40,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:40,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:19:40,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:40,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:19:40,885 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:19:40,886 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107874868] [2024-11-10 22:19:40,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107874868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:19:40,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:19:40,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:19:40,889 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769280619] [2024-11-10 22:19:40,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:19:40,898 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:19:40,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:19:40,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:19:40,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:19:40,935 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 126 [2024-11-10 22:19:40,938 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 125 transitions, 257 flow. Second operand has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:40,938 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:19:40,938 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 126 [2024-11-10 22:19:40,939 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:19:41,240 INFO L124 PetriNetUnfolderBase]: 421/1428 cut-off events. [2024-11-10 22:19:41,240 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-10 22:19:41,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2279 conditions, 1428 events. 421/1428 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 10029 event pairs, 378 based on Foata normal form. 427/1726 useless extension candidates. Maximal degree in co-relation 2178. Up to 844 conditions per place. [2024-11-10 22:19:41,252 INFO L140 encePairwiseOnDemand]: 97/126 looper letters, 47 selfloop transitions, 3 changer transitions 0/104 dead transitions. [2024-11-10 22:19:41,252 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 104 transitions, 315 flow [2024-11-10 22:19:41,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:19:41,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:19:41,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 293 transitions. [2024-11-10 22:19:41,264 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5813492063492064 [2024-11-10 22:19:41,265 INFO L175 Difference]: Start difference. First operand has 102 places, 125 transitions, 257 flow. Second operand 4 states and 293 transitions. [2024-11-10 22:19:41,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 104 transitions, 315 flow [2024-11-10 22:19:41,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 104 transitions, 315 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:19:41,272 INFO L231 Difference]: Finished difference. Result has 107 places, 104 transitions, 235 flow [2024-11-10 22:19:41,273 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=235, PETRI_PLACES=107, PETRI_TRANSITIONS=104} [2024-11-10 22:19:41,277 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 5 predicate places. [2024-11-10 22:19:41,277 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 104 transitions, 235 flow [2024-11-10 22:19:41,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.75) internal successors, (219), 4 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:41,277 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:19:41,278 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-10 22:19:41,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:19:41,278 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-10 22:19:41,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:19:41,279 INFO L85 PathProgramCache]: Analyzing trace with hash -35189933, now seen corresponding path program 1 times [2024-11-10 22:19:41,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:19:41,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650005797] [2024-11-10 22:19:41,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:41,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:19:41,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:41,375 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:19:41,376 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:19:41,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650005797] [2024-11-10 22:19:41,376 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650005797] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:19:41,376 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [542334201] [2024-11-10 22:19:41,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:41,376 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:19:41,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:19:41,380 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) [2024-11-10 22:19:41,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 22:19:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:41,482 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:19:41,486 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:19:41,535 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:19:41,536 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:19:41,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [542334201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:19:41,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:19:41,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-10 22:19:41,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781194802] [2024-11-10 22:19:41,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:19:41,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:19:41,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:19:41,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:19:41,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:19:41,554 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 126 [2024-11-10 22:19:41,555 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 104 transitions, 235 flow. Second operand has 6 states, 6 states have (on average 54.833333333333336) internal successors, (329), 6 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:41,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:19:41,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 126 [2024-11-10 22:19:41,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:19:41,869 INFO L124 PetriNetUnfolderBase]: 421/1427 cut-off events. [2024-11-10 22:19:41,869 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-10 22:19:41,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2289 conditions, 1427 events. 421/1427 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 10024 event pairs, 378 based on Foata normal form. 1/1299 useless extension candidates. Maximal degree in co-relation 2270. Up to 838 conditions per place. [2024-11-10 22:19:41,875 INFO L140 encePairwiseOnDemand]: 121/126 looper letters, 43 selfloop transitions, 6 changer transitions 0/103 dead transitions. [2024-11-10 22:19:41,875 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 103 transitions, 329 flow [2024-11-10 22:19:41,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:19:41,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:19:41,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 374 transitions. [2024-11-10 22:19:41,878 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4947089947089947 [2024-11-10 22:19:41,878 INFO L175 Difference]: Start difference. First operand has 107 places, 104 transitions, 235 flow. Second operand 6 states and 374 transitions. [2024-11-10 22:19:41,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 103 transitions, 329 flow [2024-11-10 22:19:41,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 103 transitions, 327 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:19:41,880 INFO L231 Difference]: Finished difference. Result has 110 places, 103 transitions, 241 flow [2024-11-10 22:19:41,881 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=241, PETRI_PLACES=110, PETRI_TRANSITIONS=103} [2024-11-10 22:19:41,881 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 8 predicate places. [2024-11-10 22:19:41,881 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 103 transitions, 241 flow [2024-11-10 22:19:41,882 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 54.833333333333336) internal successors, (329), 6 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:41,882 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:19:41,882 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-10 22:19:41,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 22:19:42,086 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:19:42,088 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-10 22:19:42,088 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:19:42,089 INFO L85 PathProgramCache]: Analyzing trace with hash -1090887310, now seen corresponding path program 1 times [2024-11-10 22:19:42,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:19:42,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533226700] [2024-11-10 22:19:42,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:42,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:19:42,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:42,147 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:19:42,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:19:42,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533226700] [2024-11-10 22:19:42,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [533226700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:19:42,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:19:42,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:19:42,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930976904] [2024-11-10 22:19:42,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:19:42,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:19:42,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:19:42,149 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:19:42,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:19:42,154 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 126 [2024-11-10 22:19:42,154 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 103 transitions, 241 flow. Second operand has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:42,154 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:19:42,154 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 126 [2024-11-10 22:19:42,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:19:42,307 INFO L124 PetriNetUnfolderBase]: 421/1426 cut-off events. [2024-11-10 22:19:42,307 INFO L125 PetriNetUnfolderBase]: For 18/18 co-relation queries the response was YES. [2024-11-10 22:19:42,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2290 conditions, 1426 events. 421/1426 cut-off events. For 18/18 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 10011 event pairs, 378 based on Foata normal form. 1/1300 useless extension candidates. Maximal degree in co-relation 2265. Up to 841 conditions per place. [2024-11-10 22:19:42,313 INFO L140 encePairwiseOnDemand]: 123/126 looper letters, 43 selfloop transitions, 4 changer transitions 0/102 dead transitions. [2024-11-10 22:19:42,313 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 102 transitions, 331 flow [2024-11-10 22:19:42,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:19:42,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:19:42,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 211 transitions. [2024-11-10 22:19:42,315 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5582010582010583 [2024-11-10 22:19:42,315 INFO L175 Difference]: Start difference. First operand has 110 places, 103 transitions, 241 flow. Second operand 3 states and 211 transitions. [2024-11-10 22:19:42,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 102 transitions, 331 flow [2024-11-10 22:19:42,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 102 transitions, 321 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-10 22:19:42,319 INFO L231 Difference]: Finished difference. Result has 107 places, 102 transitions, 235 flow [2024-11-10 22:19:42,319 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=98, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=235, PETRI_PLACES=107, PETRI_TRANSITIONS=102} [2024-11-10 22:19:42,320 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 5 predicate places. [2024-11-10 22:19:42,320 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 102 transitions, 235 flow [2024-11-10 22:19:42,321 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.666666666666664) internal successors, (170), 3 states have internal predecessors, (170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:42,321 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:19:42,321 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:19:42,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 22:19:42,321 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-10 22:19:42,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:19:42,322 INFO L85 PathProgramCache]: Analyzing trace with hash 2083055313, now seen corresponding path program 1 times [2024-11-10 22:19:42,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:19:42,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412294444] [2024-11-10 22:19:42,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:42,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:19:42,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:42,412 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:19:42,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:19:42,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412294444] [2024-11-10 22:19:42,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [412294444] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:19:42,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362976326] [2024-11-10 22:19:42,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:42,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:19:42,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:19:42,418 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:19:42,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 22:19:42,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:42,497 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:19:42,497 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:19:42,515 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:19:42,516 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:19:42,541 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:19:42,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362976326] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:19:42,542 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:19:42,542 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-10 22:19:42,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748184742] [2024-11-10 22:19:42,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:19:42,543 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 22:19:42,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:19:42,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 22:19:42,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 22:19:42,552 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 126 [2024-11-10 22:19:42,553 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 102 transitions, 235 flow. Second operand has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:42,553 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:19:42,553 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 126 [2024-11-10 22:19:42,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:19:42,737 INFO L124 PetriNetUnfolderBase]: 421/1432 cut-off events. [2024-11-10 22:19:42,737 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-11-10 22:19:42,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2306 conditions, 1432 events. 421/1432 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 10012 event pairs, 378 based on Foata normal form. 2/1307 useless extension candidates. Maximal degree in co-relation 2260. Up to 840 conditions per place. [2024-11-10 22:19:42,743 INFO L140 encePairwiseOnDemand]: 122/126 looper letters, 44 selfloop transitions, 7 changer transitions 0/105 dead transitions. [2024-11-10 22:19:42,743 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 105 transitions, 359 flow [2024-11-10 22:19:42,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 22:19:42,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 22:19:42,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 431 transitions. [2024-11-10 22:19:42,745 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4886621315192744 [2024-11-10 22:19:42,745 INFO L175 Difference]: Start difference. First operand has 107 places, 102 transitions, 235 flow. Second operand 7 states and 431 transitions. [2024-11-10 22:19:42,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 105 transitions, 359 flow [2024-11-10 22:19:42,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 105 transitions, 345 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:19:42,747 INFO L231 Difference]: Finished difference. Result has 113 places, 105 transitions, 268 flow [2024-11-10 22:19:42,748 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=268, PETRI_PLACES=113, PETRI_TRANSITIONS=105} [2024-11-10 22:19:42,748 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 11 predicate places. [2024-11-10 22:19:42,748 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 105 transitions, 268 flow [2024-11-10 22:19:42,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 55.4) internal successors, (554), 10 states have internal predecessors, (554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:42,749 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:19:42,749 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:19:42,767 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-10 22:19:42,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-10 22:19:42,954 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-10 22:19:42,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:19:42,955 INFO L85 PathProgramCache]: Analyzing trace with hash -1832180335, now seen corresponding path program 2 times [2024-11-10 22:19:42,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:19:42,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773759683] [2024-11-10 22:19:42,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:42,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:19:42,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:43,004 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-10 22:19:43,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:19:43,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773759683] [2024-11-10 22:19:43,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773759683] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:19:43,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:19:43,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:19:43,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511472685] [2024-11-10 22:19:43,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:19:43,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:19:43,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:19:43,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:19:43,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:19:43,013 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 52 out of 126 [2024-11-10 22:19:43,013 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 105 transitions, 268 flow. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:43,013 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:19:43,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 52 of 126 [2024-11-10 22:19:43,014 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:19:43,230 INFO L124 PetriNetUnfolderBase]: 454/1408 cut-off events. [2024-11-10 22:19:43,231 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2024-11-10 22:19:43,232 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2361 conditions, 1408 events. 454/1408 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 9575 event pairs, 0 based on Foata normal form. 19/1321 useless extension candidates. Maximal degree in co-relation 2310. Up to 861 conditions per place. [2024-11-10 22:19:43,235 INFO L140 encePairwiseOnDemand]: 120/126 looper letters, 87 selfloop transitions, 3 changer transitions 0/140 dead transitions. [2024-11-10 22:19:43,235 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 140 transitions, 518 flow [2024-11-10 22:19:43,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:19:43,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:19:43,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 296 transitions. [2024-11-10 22:19:43,237 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5873015873015873 [2024-11-10 22:19:43,237 INFO L175 Difference]: Start difference. First operand has 113 places, 105 transitions, 268 flow. Second operand 4 states and 296 transitions. [2024-11-10 22:19:43,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 140 transitions, 518 flow [2024-11-10 22:19:43,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 140 transitions, 510 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-10 22:19:43,242 INFO L231 Difference]: Finished difference. Result has 113 places, 103 transitions, 266 flow [2024-11-10 22:19:43,243 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=266, PETRI_PLACES=113, PETRI_TRANSITIONS=103} [2024-11-10 22:19:43,244 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 11 predicate places. [2024-11-10 22:19:43,244 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 103 transitions, 266 flow [2024-11-10 22:19:43,245 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 4 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:43,245 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:19:43,245 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:19:43,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 22:19:43,245 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-10 22:19:43,245 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:19:43,246 INFO L85 PathProgramCache]: Analyzing trace with hash 1204699939, now seen corresponding path program 1 times [2024-11-10 22:19:43,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:19:43,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97991852] [2024-11-10 22:19:43,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:43,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:19:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:43,417 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:19:43,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:19:43,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97991852] [2024-11-10 22:19:43,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97991852] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:19:43,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1265850502] [2024-11-10 22:19:43,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:43,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:19:43,417 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:19:43,422 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:19:43,423 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 22:19:43,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:43,503 INFO L255 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 22:19:43,504 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:19:43,547 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:19:43,547 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:19:43,630 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:19:43,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1265850502] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:19:43,631 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:19:43,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-10 22:19:43,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780738520] [2024-11-10 22:19:43,632 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:19:43,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 22:19:43,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:19:43,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 22:19:43,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-10 22:19:43,650 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 126 [2024-11-10 22:19:43,651 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 103 transitions, 266 flow. Second operand has 18 states, 18 states have (on average 55.27777777777778) internal successors, (995), 18 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:43,651 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:19:43,651 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 126 [2024-11-10 22:19:43,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:19:43,948 INFO L124 PetriNetUnfolderBase]: 420/1391 cut-off events. [2024-11-10 22:19:43,948 INFO L125 PetriNetUnfolderBase]: For 134/134 co-relation queries the response was YES. [2024-11-10 22:19:43,951 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2308 conditions, 1391 events. 420/1391 cut-off events. For 134/134 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 9479 event pairs, 378 based on Foata normal form. 4/1273 useless extension candidates. Maximal degree in co-relation 2211. Up to 823 conditions per place. [2024-11-10 22:19:43,955 INFO L140 encePairwiseOnDemand]: 122/126 looper letters, 44 selfloop transitions, 15 changer transitions 0/111 dead transitions. [2024-11-10 22:19:43,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 111 transitions, 448 flow [2024-11-10 22:19:43,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 22:19:43,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 22:19:43,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 873 transitions. [2024-11-10 22:19:43,957 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.46190476190476193 [2024-11-10 22:19:43,957 INFO L175 Difference]: Start difference. First operand has 113 places, 103 transitions, 266 flow. Second operand 15 states and 873 transitions. [2024-11-10 22:19:43,958 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 111 transitions, 448 flow [2024-11-10 22:19:43,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 111 transitions, 442 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:19:43,960 INFO L231 Difference]: Finished difference. Result has 128 places, 111 transitions, 373 flow [2024-11-10 22:19:43,960 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=103, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=373, PETRI_PLACES=128, PETRI_TRANSITIONS=111} [2024-11-10 22:19:43,961 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 26 predicate places. [2024-11-10 22:19:43,961 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 111 transitions, 373 flow [2024-11-10 22:19:43,962 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 55.27777777777778) internal successors, (995), 18 states have internal predecessors, (995), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:43,962 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:19:43,962 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 7, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:19:43,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-10 22:19:44,162 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:19:44,163 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-10 22:19:44,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:19:44,164 INFO L85 PathProgramCache]: Analyzing trace with hash 152551587, now seen corresponding path program 2 times [2024-11-10 22:19:44,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:19:44,164 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396290099] [2024-11-10 22:19:44,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:44,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:19:44,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:44,484 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:19:44,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:19:44,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396290099] [2024-11-10 22:19:44,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396290099] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:19:44,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129464959] [2024-11-10 22:19:44,486 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 22:19:44,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:19:44,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:19:44,488 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:19:44,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 22:19:44,593 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 22:19:44,593 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:19:44,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 301 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 22:19:44,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:19:44,669 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:19:44,669 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:19:44,859 INFO L134 CoverageAnalysis]: Checked inductivity of 101 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-10 22:19:44,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129464959] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:19:44,860 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:19:44,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-10 22:19:44,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630030940] [2024-11-10 22:19:44,860 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:19:44,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 22:19:44,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:19:44,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 22:19:44,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-10 22:19:44,881 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 126 [2024-11-10 22:19:44,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 111 transitions, 373 flow. Second operand has 23 states, 23 states have (on average 55.26086956521739) internal successors, (1271), 23 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:44,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:19:44,884 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 126 [2024-11-10 22:19:44,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:19:45,239 INFO L124 PetriNetUnfolderBase]: 420/1403 cut-off events. [2024-11-10 22:19:45,240 INFO L125 PetriNetUnfolderBase]: For 353/353 co-relation queries the response was YES. [2024-11-10 22:19:45,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2360 conditions, 1403 events. 420/1403 cut-off events. For 353/353 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 9506 event pairs, 378 based on Foata normal form. 3/1285 useless extension candidates. Maximal degree in co-relation 2194. Up to 823 conditions per place. [2024-11-10 22:19:45,247 INFO L140 encePairwiseOnDemand]: 122/126 looper letters, 44 selfloop transitions, 21 changer transitions 0/117 dead transitions. [2024-11-10 22:19:45,247 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 117 transitions, 569 flow [2024-11-10 22:19:45,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-10 22:19:45,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-10 22:19:45,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1202 transitions. [2024-11-10 22:19:45,250 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45427059712774 [2024-11-10 22:19:45,250 INFO L175 Difference]: Start difference. First operand has 128 places, 111 transitions, 373 flow. Second operand 21 states and 1202 transitions. [2024-11-10 22:19:45,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 117 transitions, 569 flow [2024-11-10 22:19:45,252 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 117 transitions, 551 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-10 22:19:45,253 INFO L231 Difference]: Finished difference. Result has 147 places, 117 transitions, 478 flow [2024-11-10 22:19:45,253 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=126, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=111, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=478, PETRI_PLACES=147, PETRI_TRANSITIONS=117} [2024-11-10 22:19:45,254 INFO L277 CegarLoopForPetriNet]: 102 programPoint places, 45 predicate places. [2024-11-10 22:19:45,254 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 117 transitions, 478 flow [2024-11-10 22:19:45,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 55.26086956521739) internal successors, (1271), 23 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:45,255 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:19:45,255 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:19:45,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-10 22:19:45,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:19:45,456 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 16 more)] === [2024-11-10 22:19:45,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:19:45,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1962059459, now seen corresponding path program 3 times [2024-11-10 22:19:45,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:19:45,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762253600] [2024-11-10 22:19:45,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:45,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:19:45,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:19:45,479 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:19:45,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:19:45,531 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:19:45,531 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 22:19:45,532 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (18 of 19 remaining) [2024-11-10 22:19:45,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 19 remaining) [2024-11-10 22:19:45,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 19 remaining) [2024-11-10 22:19:45,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 19 remaining) [2024-11-10 22:19:45,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 19 remaining) [2024-11-10 22:19:45,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 19 remaining) [2024-11-10 22:19:45,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 19 remaining) [2024-11-10 22:19:45,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 19 remaining) [2024-11-10 22:19:45,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 19 remaining) [2024-11-10 22:19:45,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 19 remaining) [2024-11-10 22:19:45,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 19 remaining) [2024-11-10 22:19:45,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 19 remaining) [2024-11-10 22:19:45,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 19 remaining) [2024-11-10 22:19:45,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 19 remaining) [2024-11-10 22:19:45,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 19 remaining) [2024-11-10 22:19:45,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 19 remaining) [2024-11-10 22:19:45,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 19 remaining) [2024-11-10 22:19:45,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 19 remaining) [2024-11-10 22:19:45,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 19 remaining) [2024-11-10 22:19:45,536 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 22:19:45,536 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1] [2024-11-10 22:19:45,538 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 22:19:45,539 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-10 22:19:45,561 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-10 22:19:45,564 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 141 places, 175 transitions, 366 flow [2024-11-10 22:19:45,581 INFO L124 PetriNetUnfolderBase]: 67/309 cut-off events. [2024-11-10 22:19:45,582 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-10 22:19:45,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321 conditions, 309 events. 67/309 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1395 event pairs, 0 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 184. Up to 12 conditions per place. [2024-11-10 22:19:45,584 INFO L82 GeneralOperation]: Start removeDead. Operand has 141 places, 175 transitions, 366 flow [2024-11-10 22:19:45,586 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 175 transitions, 366 flow [2024-11-10 22:19:45,587 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:19:45,588 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;@5dcbd661, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:19:45,588 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-10 22:19:45,589 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:19:45,589 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events. [2024-11-10 22:19:45,589 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:19:45,589 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:19:45,590 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 22:19:45,590 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-10 22:19:45,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:19:45,590 INFO L85 PathProgramCache]: Analyzing trace with hash 26575475, now seen corresponding path program 1 times [2024-11-10 22:19:45,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:19:45,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057632655] [2024-11-10 22:19:45,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:45,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:19:45,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:45,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:19:45,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:19:45,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057632655] [2024-11-10 22:19:45,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1057632655] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:19:45,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:19:45,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:19:45,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038093468] [2024-11-10 22:19:45,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:19:45,621 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:19:45,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:19:45,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:19:45,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:19:45,627 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 175 [2024-11-10 22:19:45,628 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 175 transitions, 366 flow. Second operand has 4 states, 4 states have (on average 73.75) internal successors, (295), 4 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:45,628 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:19:45,628 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 175 [2024-11-10 22:19:45,628 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:19:48,679 INFO L124 PetriNetUnfolderBase]: 16436/36886 cut-off events. [2024-11-10 22:19:48,680 INFO L125 PetriNetUnfolderBase]: For 125/125 co-relation queries the response was YES. [2024-11-10 22:19:48,738 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61494 conditions, 36886 events. 16436/36886 cut-off events. For 125/125 co-relation queries the response was YES. Maximal size of possible extension queue 1091. Compared 394054 event pairs, 15174 based on Foata normal form. 12362/45933 useless extension candidates. Maximal degree in co-relation 25647. Up to 24504 conditions per place. [2024-11-10 22:19:48,862 INFO L140 encePairwiseOnDemand]: 136/175 looper letters, 68 selfloop transitions, 3 changer transitions 0/144 dead transitions. [2024-11-10 22:19:48,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 144 transitions, 446 flow [2024-11-10 22:19:48,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:19:48,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:19:48,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 400 transitions. [2024-11-10 22:19:48,864 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5714285714285714 [2024-11-10 22:19:48,864 INFO L175 Difference]: Start difference. First operand has 141 places, 175 transitions, 366 flow. Second operand 4 states and 400 transitions. [2024-11-10 22:19:48,865 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 144 transitions, 446 flow [2024-11-10 22:19:48,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 144 transitions, 446 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 22:19:48,868 INFO L231 Difference]: Finished difference. Result has 146 places, 144 transitions, 324 flow [2024-11-10 22:19:48,869 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=324, PETRI_PLACES=146, PETRI_TRANSITIONS=144} [2024-11-10 22:19:48,870 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 5 predicate places. [2024-11-10 22:19:48,870 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 144 transitions, 324 flow [2024-11-10 22:19:48,870 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.75) internal successors, (295), 4 states have internal predecessors, (295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:48,870 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:19:48,871 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-10 22:19:48,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-10 22:19:48,871 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-10 22:19:48,871 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:19:48,871 INFO L85 PathProgramCache]: Analyzing trace with hash 1590399699, now seen corresponding path program 1 times [2024-11-10 22:19:48,871 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:19:48,871 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556696969] [2024-11-10 22:19:48,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:48,872 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:19:48,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:48,923 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:19:48,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:19:48,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556696969] [2024-11-10 22:19:48,925 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556696969] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:19:48,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [635541782] [2024-11-10 22:19:48,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:48,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:19:48,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:19:48,927 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:19:48,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-10 22:19:49,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:49,003 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:19:49,004 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:19:49,026 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:19:49,027 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:19:49,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [635541782] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:19:49,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:19:49,027 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-10 22:19:49,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595488528] [2024-11-10 22:19:49,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:19:49,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:19:49,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:19:49,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:19:49,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:19:49,035 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 175 [2024-11-10 22:19:49,035 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 144 transitions, 324 flow. Second operand has 6 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:49,035 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:19:49,036 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 175 [2024-11-10 22:19:49,036 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:19:51,805 INFO L124 PetriNetUnfolderBase]: 16436/36885 cut-off events. [2024-11-10 22:19:51,806 INFO L125 PetriNetUnfolderBase]: For 131/131 co-relation queries the response was YES. [2024-11-10 22:19:51,907 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61504 conditions, 36885 events. 16436/36885 cut-off events. For 131/131 co-relation queries the response was YES. Maximal size of possible extension queue 1091. Compared 394131 event pairs, 15174 based on Foata normal form. 1/33571 useless extension candidates. Maximal degree in co-relation 61484. Up to 24498 conditions per place. [2024-11-10 22:19:52,031 INFO L140 encePairwiseOnDemand]: 170/175 looper letters, 64 selfloop transitions, 6 changer transitions 0/143 dead transitions. [2024-11-10 22:19:52,032 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 143 transitions, 460 flow [2024-11-10 22:19:52,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:19:52,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:19:52,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 509 transitions. [2024-11-10 22:19:52,034 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4847619047619048 [2024-11-10 22:19:52,034 INFO L175 Difference]: Start difference. First operand has 146 places, 144 transitions, 324 flow. Second operand 6 states and 509 transitions. [2024-11-10 22:19:52,034 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 143 transitions, 460 flow [2024-11-10 22:19:52,036 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 143 transitions, 458 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:19:52,038 INFO L231 Difference]: Finished difference. Result has 149 places, 143 transitions, 330 flow [2024-11-10 22:19:52,038 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=330, PETRI_PLACES=149, PETRI_TRANSITIONS=143} [2024-11-10 22:19:52,039 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 8 predicate places. [2024-11-10 22:19:52,039 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 143 transitions, 330 flow [2024-11-10 22:19:52,040 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.83333333333333) internal successors, (443), 6 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:52,040 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:19:52,040 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-10 22:19:52,053 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-10 22:19:52,244 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-10 22:19:52,246 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-10 22:19:52,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:19:52,246 INFO L85 PathProgramCache]: Analyzing trace with hash 2057751201, now seen corresponding path program 1 times [2024-11-10 22:19:52,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:19:52,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728623919] [2024-11-10 22:19:52,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:52,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:19:52,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:52,291 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:19:52,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:19:52,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728623919] [2024-11-10 22:19:52,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [728623919] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:19:52,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:19:52,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:19:52,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1207146379] [2024-11-10 22:19:52,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:19:52,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:19:52,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:19:52,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:19:52,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:19:52,299 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 175 [2024-11-10 22:19:52,299 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 143 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:52,299 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:19:52,299 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 175 [2024-11-10 22:19:52,299 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:19:54,783 INFO L124 PetriNetUnfolderBase]: 16436/36884 cut-off events. [2024-11-10 22:19:54,784 INFO L125 PetriNetUnfolderBase]: For 142/142 co-relation queries the response was YES. [2024-11-10 22:19:54,879 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61505 conditions, 36884 events. 16436/36884 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 1091. Compared 393897 event pairs, 15174 based on Foata normal form. 1/33572 useless extension candidates. Maximal degree in co-relation 61479. Up to 24501 conditions per place. [2024-11-10 22:19:55,009 INFO L140 encePairwiseOnDemand]: 172/175 looper letters, 64 selfloop transitions, 4 changer transitions 0/142 dead transitions. [2024-11-10 22:19:55,010 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 142 transitions, 462 flow [2024-11-10 22:19:55,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:19:55,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:19:55,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 289 transitions. [2024-11-10 22:19:55,011 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5504761904761905 [2024-11-10 22:19:55,011 INFO L175 Difference]: Start difference. First operand has 149 places, 143 transitions, 330 flow. Second operand 3 states and 289 transitions. [2024-11-10 22:19:55,011 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 142 transitions, 462 flow [2024-11-10 22:19:55,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 142 transitions, 452 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-10 22:19:55,015 INFO L231 Difference]: Finished difference. Result has 146 places, 142 transitions, 324 flow [2024-11-10 22:19:55,015 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=146, PETRI_TRANSITIONS=142} [2024-11-10 22:19:55,016 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 5 predicate places. [2024-11-10 22:19:55,016 INFO L471 AbstractCegarLoop]: Abstraction has has 146 places, 142 transitions, 324 flow [2024-11-10 22:19:55,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:55,016 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:19:55,016 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:19:55,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-10 22:19:55,017 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-10 22:19:55,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:19:55,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1281492143, now seen corresponding path program 1 times [2024-11-10 22:19:55,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:19:55,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564584536] [2024-11-10 22:19:55,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:55,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:19:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:55,064 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:19:55,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:19:55,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564584536] [2024-11-10 22:19:55,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564584536] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:19:55,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066538674] [2024-11-10 22:19:55,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:55,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:19:55,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:19:55,067 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:19:55,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-10 22:19:55,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:55,145 INFO L255 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:19:55,146 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:19:55,162 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:19:55,162 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:19:55,185 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:19:55,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066538674] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:19:55,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:19:55,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2024-11-10 22:19:55,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703320647] [2024-11-10 22:19:55,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:19:55,187 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-10 22:19:55,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:19:55,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-10 22:19:55,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-10 22:19:55,197 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 175 [2024-11-10 22:19:55,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 142 transitions, 324 flow. Second operand has 10 states, 10 states have (on average 74.4) internal successors, (744), 10 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:55,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:19:55,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 175 [2024-11-10 22:19:55,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:19:58,109 INFO L124 PetriNetUnfolderBase]: 16436/36890 cut-off events. [2024-11-10 22:19:58,110 INFO L125 PetriNetUnfolderBase]: For 158/158 co-relation queries the response was YES. [2024-11-10 22:19:58,201 INFO L83 FinitePrefix]: Finished finitePrefix Result has 61521 conditions, 36890 events. 16436/36890 cut-off events. For 158/158 co-relation queries the response was YES. Maximal size of possible extension queue 1091. Compared 393883 event pairs, 15174 based on Foata normal form. 2/33580 useless extension candidates. Maximal degree in co-relation 61474. Up to 24500 conditions per place. [2024-11-10 22:19:58,312 INFO L140 encePairwiseOnDemand]: 171/175 looper letters, 65 selfloop transitions, 7 changer transitions 0/145 dead transitions. [2024-11-10 22:19:58,312 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 145 transitions, 490 flow [2024-11-10 22:19:58,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-10 22:19:58,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-10 22:19:58,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 585 transitions. [2024-11-10 22:19:58,314 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4775510204081633 [2024-11-10 22:19:58,314 INFO L175 Difference]: Start difference. First operand has 146 places, 142 transitions, 324 flow. Second operand 7 states and 585 transitions. [2024-11-10 22:19:58,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 145 transitions, 490 flow [2024-11-10 22:19:58,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 145 transitions, 476 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:19:58,317 INFO L231 Difference]: Finished difference. Result has 152 places, 145 transitions, 357 flow [2024-11-10 22:19:58,318 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=357, PETRI_PLACES=152, PETRI_TRANSITIONS=145} [2024-11-10 22:19:58,318 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 11 predicate places. [2024-11-10 22:19:58,318 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 145 transitions, 357 flow [2024-11-10 22:19:58,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 74.4) internal successors, (744), 10 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:58,319 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:19:58,319 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:19:58,338 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-10 22:19:58,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:19:58,520 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-10 22:19:58,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:19:58,521 INFO L85 PathProgramCache]: Analyzing trace with hash 2027416559, now seen corresponding path program 2 times [2024-11-10 22:19:58,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:19:58,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478068788] [2024-11-10 22:19:58,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:19:58,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:19:58,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:19:58,588 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-10 22:19:58,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:19:58,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478068788] [2024-11-10 22:19:58,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478068788] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:19:58,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:19:58,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:19:58,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [991067823] [2024-11-10 22:19:58,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:19:58,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:19:58,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:19:58,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:19:58,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:19:58,597 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 175 [2024-11-10 22:19:58,597 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 145 transitions, 357 flow. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:19:58,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:19:58,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 175 [2024-11-10 22:19:58,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:01,607 INFO L124 PetriNetUnfolderBase]: 19568/42206 cut-off events. [2024-11-10 22:20:01,608 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2024-11-10 22:20:01,744 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71702 conditions, 42206 events. 19568/42206 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 1164. Compared 443263 event pairs, 8964 based on Foata normal form. 19/38294 useless extension candidates. Maximal degree in co-relation 71650. Up to 29307 conditions per place. [2024-11-10 22:20:01,897 INFO L140 encePairwiseOnDemand]: 169/175 looper letters, 112 selfloop transitions, 3 changer transitions 0/184 dead transitions. [2024-11-10 22:20:01,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 184 transitions, 665 flow [2024-11-10 22:20:01,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:20:01,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:20:01,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 397 transitions. [2024-11-10 22:20:01,900 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5671428571428572 [2024-11-10 22:20:01,900 INFO L175 Difference]: Start difference. First operand has 152 places, 145 transitions, 357 flow. Second operand 4 states and 397 transitions. [2024-11-10 22:20:01,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 184 transitions, 665 flow [2024-11-10 22:20:01,902 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 184 transitions, 657 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-10 22:20:01,904 INFO L231 Difference]: Finished difference. Result has 155 places, 147 transitions, 373 flow [2024-11-10 22:20:01,904 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=349, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=373, PETRI_PLACES=155, PETRI_TRANSITIONS=147} [2024-11-10 22:20:01,905 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 14 predicate places. [2024-11-10 22:20:01,905 INFO L471 AbstractCegarLoop]: Abstraction has has 155 places, 147 transitions, 373 flow [2024-11-10 22:20:01,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:20:01,905 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:01,905 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:01,905 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-10 22:20:01,906 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-10 22:20:01,906 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:01,906 INFO L85 PathProgramCache]: Analyzing trace with hash 1833528994, now seen corresponding path program 1 times [2024-11-10 22:20:01,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:01,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56476895] [2024-11-10 22:20:01,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:01,907 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:01,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:02,015 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 22:20:02,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:02,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56476895] [2024-11-10 22:20:02,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [56476895] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:20:02,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373741788] [2024-11-10 22:20:02,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:02,016 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:02,016 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:20:02,018 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:20:02,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-10 22:20:02,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:02,151 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-10 22:20:02,152 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:20:02,192 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 22:20:02,192 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:20:02,280 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 22:20:02,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373741788] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:20:02,281 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:20:02,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 17 [2024-11-10 22:20:02,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186337118] [2024-11-10 22:20:02,282 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:20:02,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-10 22:20:02,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:02,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-10 22:20:02,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-11-10 22:20:02,302 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 175 [2024-11-10 22:20:02,304 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 147 transitions, 373 flow. Second operand has 18 states, 18 states have (on average 74.33333333333333) internal successors, (1338), 18 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:20:02,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:02,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 175 [2024-11-10 22:20:02,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:05,598 INFO L124 PetriNetUnfolderBase]: 16438/37008 cut-off events. [2024-11-10 22:20:05,598 INFO L125 PetriNetUnfolderBase]: For 608/1300 co-relation queries the response was YES. [2024-11-10 22:20:05,732 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62114 conditions, 37008 events. 16438/37008 cut-off events. For 608/1300 co-relation queries the response was YES. Maximal size of possible extension queue 1092. Compared 394766 event pairs, 15174 based on Foata normal form. 21/33666 useless extension candidates. Maximal degree in co-relation 62015. Up to 24502 conditions per place. [2024-11-10 22:20:05,844 INFO L140 encePairwiseOnDemand]: 171/175 looper letters, 66 selfloop transitions, 15 changer transitions 0/155 dead transitions. [2024-11-10 22:20:05,844 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 155 transitions, 599 flow [2024-11-10 22:20:05,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-10 22:20:05,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-10 22:20:05,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1179 transitions. [2024-11-10 22:20:05,847 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4491428571428571 [2024-11-10 22:20:05,847 INFO L175 Difference]: Start difference. First operand has 155 places, 147 transitions, 373 flow. Second operand 15 states and 1179 transitions. [2024-11-10 22:20:05,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 155 transitions, 599 flow [2024-11-10 22:20:05,850 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 155 transitions, 597 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:20:05,852 INFO L231 Difference]: Finished difference. Result has 172 places, 155 transitions, 484 flow [2024-11-10 22:20:05,852 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=371, PETRI_DIFFERENCE_MINUEND_PLACES=154, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=484, PETRI_PLACES=172, PETRI_TRANSITIONS=155} [2024-11-10 22:20:05,852 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 31 predicate places. [2024-11-10 22:20:05,852 INFO L471 AbstractCegarLoop]: Abstraction has has 172 places, 155 transitions, 484 flow [2024-11-10 22:20:05,853 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 74.33333333333333) internal successors, (1338), 18 states have internal predecessors, (1338), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:20:05,853 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:05,853 INFO L204 CegarLoopForPetriNet]: trace histogram [8, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:05,867 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-10 22:20:06,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:06,054 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-10 22:20:06,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:06,054 INFO L85 PathProgramCache]: Analyzing trace with hash 555654434, now seen corresponding path program 2 times [2024-11-10 22:20:06,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:06,055 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508555884] [2024-11-10 22:20:06,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:06,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:06,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:06,325 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 22:20:06,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:06,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508555884] [2024-11-10 22:20:06,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1508555884] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:20:06,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1565073366] [2024-11-10 22:20:06,327 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 22:20:06,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:06,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:20:06,329 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:20:06,330 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-10 22:20:06,426 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-10 22:20:06,426 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:20:06,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 309 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-10 22:20:06,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:20:06,483 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 22:20:06,484 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:20:06,864 INFO L134 CoverageAnalysis]: Checked inductivity of 103 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-10 22:20:06,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1565073366] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:20:06,865 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:20:06,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 22 [2024-11-10 22:20:06,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1803067857] [2024-11-10 22:20:06,865 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:20:06,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-10 22:20:06,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:06,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-10 22:20:06,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2024-11-10 22:20:06,885 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 175 [2024-11-10 22:20:06,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 155 transitions, 484 flow. Second operand has 23 states, 23 states have (on average 74.30434782608695) internal successors, (1709), 23 states have internal predecessors, (1709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:20:06,887 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:06,887 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 175 [2024-11-10 22:20:06,887 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:10,244 INFO L124 PetriNetUnfolderBase]: 16438/37020 cut-off events. [2024-11-10 22:20:10,244 INFO L125 PetriNetUnfolderBase]: For 846/1538 co-relation queries the response was YES. [2024-11-10 22:20:10,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 62168 conditions, 37020 events. 16438/37020 cut-off events. For 846/1538 co-relation queries the response was YES. Maximal size of possible extension queue 1092. Compared 394925 event pairs, 15174 based on Foata normal form. 20/33677 useless extension candidates. Maximal degree in co-relation 62000. Up to 24502 conditions per place. [2024-11-10 22:20:10,540 INFO L140 encePairwiseOnDemand]: 171/175 looper letters, 66 selfloop transitions, 21 changer transitions 0/161 dead transitions. [2024-11-10 22:20:10,540 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 161 transitions, 724 flow [2024-11-10 22:20:10,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-10 22:20:10,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-10 22:20:10,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 1622 transitions. [2024-11-10 22:20:10,548 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44136054421768706 [2024-11-10 22:20:10,549 INFO L175 Difference]: Start difference. First operand has 172 places, 155 transitions, 484 flow. Second operand 21 states and 1622 transitions. [2024-11-10 22:20:10,549 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 161 transitions, 724 flow [2024-11-10 22:20:10,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 161 transitions, 706 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-10 22:20:10,558 INFO L231 Difference]: Finished difference. Result has 191 places, 161 transitions, 589 flow [2024-11-10 22:20:10,560 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=466, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=589, PETRI_PLACES=191, PETRI_TRANSITIONS=161} [2024-11-10 22:20:10,561 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 50 predicate places. [2024-11-10 22:20:10,561 INFO L471 AbstractCegarLoop]: Abstraction has has 191 places, 161 transitions, 589 flow [2024-11-10 22:20:10,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 74.30434782608695) internal successors, (1709), 23 states have internal predecessors, (1709), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:20:10,562 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:10,562 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:10,576 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-10 22:20:10,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-10 22:20:10,766 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-10 22:20:10,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:10,767 INFO L85 PathProgramCache]: Analyzing trace with hash -1747126270, now seen corresponding path program 3 times [2024-11-10 22:20:10,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:10,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588346180] [2024-11-10 22:20:10,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:10,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:10,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:10,873 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:20:10,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:10,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588346180] [2024-11-10 22:20:10,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588346180] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:20:10,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200872598] [2024-11-10 22:20:10,874 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-10 22:20:10,875 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:20:10,875 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:20:10,877 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-10 22:20:10,879 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-10 22:20:10,970 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-10 22:20:10,970 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:20:10,972 INFO L255 TraceCheckSpWp]: Trace formula consists of 237 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:20:10,974 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:20:11,007 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:20:11,008 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:20:11,008 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200872598] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:20:11,008 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:20:11,008 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-11-10 22:20:11,008 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140234595] [2024-11-10 22:20:11,009 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:20:11,009 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:20:11,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:11,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:20:11,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-10 22:20:11,018 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 70 out of 175 [2024-11-10 22:20:11,019 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 161 transitions, 589 flow. Second operand has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:20:11,019 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:11,019 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 70 of 175 [2024-11-10 22:20:11,019 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:14,697 INFO L124 PetriNetUnfolderBase]: 19638/39673 cut-off events. [2024-11-10 22:20:14,698 INFO L125 PetriNetUnfolderBase]: For 1265/1265 co-relation queries the response was YES. [2024-11-10 22:20:14,925 INFO L83 FinitePrefix]: Finished finitePrefix Result has 70964 conditions, 39673 events. 19638/39673 cut-off events. For 1265/1265 co-relation queries the response was YES. Maximal size of possible extension queue 1097. Compared 397897 event pairs, 2448 based on Foata normal form. 361/36899 useless extension candidates. Maximal degree in co-relation 70776. Up to 22233 conditions per place. [2024-11-10 22:20:15,052 INFO L140 encePairwiseOnDemand]: 170/175 looper letters, 158 selfloop transitions, 6 changer transitions 0/232 dead transitions. [2024-11-10 22:20:15,053 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 232 transitions, 1057 flow [2024-11-10 22:20:15,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:20:15,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:20:15,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 424 transitions. [2024-11-10 22:20:15,054 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6057142857142858 [2024-11-10 22:20:15,054 INFO L175 Difference]: Start difference. First operand has 191 places, 161 transitions, 589 flow. Second operand 4 states and 424 transitions. [2024-11-10 22:20:15,054 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 232 transitions, 1057 flow [2024-11-10 22:20:15,058 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 180 places, 232 transitions, 1008 flow, removed 4 selfloop flow, removed 13 redundant places. [2024-11-10 22:20:15,060 INFO L231 Difference]: Finished difference. Result has 180 places, 160 transitions, 548 flow [2024-11-10 22:20:15,060 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=536, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=548, PETRI_PLACES=180, PETRI_TRANSITIONS=160} [2024-11-10 22:20:15,061 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 39 predicate places. [2024-11-10 22:20:15,061 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 160 transitions, 548 flow [2024-11-10 22:20:15,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 72.6) internal successors, (363), 5 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:20:15,061 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:15,061 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:15,077 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-10 22:20:15,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-10 22:20:15,263 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-10 22:20:15,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:15,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1673661272, now seen corresponding path program 1 times [2024-11-10 22:20:15,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:15,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290265282] [2024-11-10 22:20:15,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:15,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:15,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:15,331 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-10 22:20:15,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:15,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290265282] [2024-11-10 22:20:15,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290265282] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:20:15,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:20:15,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:20:15,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294796977] [2024-11-10 22:20:15,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:20:15,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:20:15,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:15,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:20:15,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:20:15,341 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 175 [2024-11-10 22:20:15,342 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 160 transitions, 548 flow. Second operand has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:20:15,342 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:15,342 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 175 [2024-11-10 22:20:15,342 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:18,583 INFO L124 PetriNetUnfolderBase]: 17779/36929 cut-off events. [2024-11-10 22:20:18,584 INFO L125 PetriNetUnfolderBase]: For 3419/3419 co-relation queries the response was YES. [2024-11-10 22:20:18,779 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66398 conditions, 36929 events. 17779/36929 cut-off events. For 3419/3419 co-relation queries the response was YES. Maximal size of possible extension queue 1064. Compared 374814 event pairs, 705 based on Foata normal form. 361/34949 useless extension candidates. Maximal degree in co-relation 66234. Up to 24036 conditions per place. [2024-11-10 22:20:18,871 INFO L140 encePairwiseOnDemand]: 170/175 looper letters, 157 selfloop transitions, 6 changer transitions 0/232 dead transitions. [2024-11-10 22:20:18,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 182 places, 232 transitions, 1016 flow [2024-11-10 22:20:18,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:20:18,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:20:18,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 427 transitions. [2024-11-10 22:20:18,872 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.61 [2024-11-10 22:20:18,872 INFO L175 Difference]: Start difference. First operand has 180 places, 160 transitions, 548 flow. Second operand 4 states and 427 transitions. [2024-11-10 22:20:18,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 182 places, 232 transitions, 1016 flow [2024-11-10 22:20:18,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 179 places, 232 transitions, 1004 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-10 22:20:18,880 INFO L231 Difference]: Finished difference. Result has 180 places, 160 transitions, 552 flow [2024-11-10 22:20:18,881 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=532, PETRI_DIFFERENCE_MINUEND_PLACES=176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=552, PETRI_PLACES=180, PETRI_TRANSITIONS=160} [2024-11-10 22:20:18,881 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 39 predicate places. [2024-11-10 22:20:18,881 INFO L471 AbstractCegarLoop]: Abstraction has has 180 places, 160 transitions, 552 flow [2024-11-10 22:20:18,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:20:18,882 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:18,882 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:18,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-10 22:20:18,882 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-10 22:20:18,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:18,882 INFO L85 PathProgramCache]: Analyzing trace with hash -942830704, now seen corresponding path program 1 times [2024-11-10 22:20:18,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:18,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839342986] [2024-11-10 22:20:18,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:18,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:18,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:19,978 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-10 22:20:19,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:19,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839342986] [2024-11-10 22:20:19,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839342986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:20:19,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:20:19,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 22:20:19,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467186136] [2024-11-10 22:20:19,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:20:19,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-10 22:20:19,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:19,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-10 22:20:19,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-10 22:20:19,991 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 175 [2024-11-10 22:20:19,991 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 160 transitions, 552 flow. Second operand has 5 states, 5 states have (on average 76.6) internal successors, (383), 5 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:20:19,991 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:19,992 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 175 [2024-11-10 22:20:19,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:20:23,964 INFO L124 PetriNetUnfolderBase]: 20371/43566 cut-off events. [2024-11-10 22:20:23,965 INFO L125 PetriNetUnfolderBase]: For 3645/3663 co-relation queries the response was YES. [2024-11-10 22:20:24,244 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76780 conditions, 43566 events. 20371/43566 cut-off events. For 3645/3663 co-relation queries the response was YES. Maximal size of possible extension queue 1298. Compared 467160 event pairs, 2757 based on Foata normal form. 540/40943 useless extension candidates. Maximal degree in co-relation 76616. Up to 22457 conditions per place. [2024-11-10 22:20:24,371 INFO L140 encePairwiseOnDemand]: 167/175 looper letters, 233 selfloop transitions, 11 changer transitions 0/315 dead transitions. [2024-11-10 22:20:24,371 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 185 places, 315 transitions, 1427 flow [2024-11-10 22:20:24,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:20:24,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:20:24,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 668 transitions. [2024-11-10 22:20:24,373 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6361904761904762 [2024-11-10 22:20:24,373 INFO L175 Difference]: Start difference. First operand has 180 places, 160 transitions, 552 flow. Second operand 6 states and 668 transitions. [2024-11-10 22:20:24,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 185 places, 315 transitions, 1427 flow [2024-11-10 22:20:24,376 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 183 places, 315 transitions, 1408 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:20:24,381 INFO L231 Difference]: Finished difference. Result has 187 places, 172 transitions, 627 flow [2024-11-10 22:20:24,382 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=175, PETRI_DIFFERENCE_MINUEND_FLOW=544, PETRI_DIFFERENCE_MINUEND_PLACES=178, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=154, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=627, PETRI_PLACES=187, PETRI_TRANSITIONS=172} [2024-11-10 22:20:24,382 INFO L277 CegarLoopForPetriNet]: 141 programPoint places, 46 predicate places. [2024-11-10 22:20:24,382 INFO L471 AbstractCegarLoop]: Abstraction has has 187 places, 172 transitions, 627 flow [2024-11-10 22:20:24,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.6) internal successors, (383), 5 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:20:24,383 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:24,383 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 10, 10, 10, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:24,383 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-10 22:20:24,383 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-10 22:20:24,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:24,384 INFO L85 PathProgramCache]: Analyzing trace with hash -231626493, now seen corresponding path program 1 times [2024-11-10 22:20:24,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:24,384 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085344754] [2024-11-10 22:20:24,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:24,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:24,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:20:24,412 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 22:20:24,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 22:20:24,456 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 22:20:24,460 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 22:20:24,460 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (22 of 23 remaining) [2024-11-10 22:20:24,460 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 23 remaining) [2024-11-10 22:20:24,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 23 remaining) [2024-11-10 22:20:24,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 23 remaining) [2024-11-10 22:20:24,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 23 remaining) [2024-11-10 22:20:24,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 23 remaining) [2024-11-10 22:20:24,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 23 remaining) [2024-11-10 22:20:24,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 23 remaining) [2024-11-10 22:20:24,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 23 remaining) [2024-11-10 22:20:24,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 23 remaining) [2024-11-10 22:20:24,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 23 remaining) [2024-11-10 22:20:24,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 23 remaining) [2024-11-10 22:20:24,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 23 remaining) [2024-11-10 22:20:24,461 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 23 remaining) [2024-11-10 22:20:24,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 23 remaining) [2024-11-10 22:20:24,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 23 remaining) [2024-11-10 22:20:24,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 23 remaining) [2024-11-10 22:20:24,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 23 remaining) [2024-11-10 22:20:24,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 23 remaining) [2024-11-10 22:20:24,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 23 remaining) [2024-11-10 22:20:24,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 23 remaining) [2024-11-10 22:20:24,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 23 remaining) [2024-11-10 22:20:24,462 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 23 remaining) [2024-11-10 22:20:24,462 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-10 22:20:24,462 INFO L407 BasicCegarLoop]: Path program histogram: [3, 2, 1, 1, 1, 1, 1, 1] [2024-11-10 22:20:24,463 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 22:20:24,463 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-10 22:20:24,715 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-10 22:20:24,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 180 places, 224 transitions, 475 flow [2024-11-10 22:20:24,767 INFO L124 PetriNetUnfolderBase]: 99/461 cut-off events. [2024-11-10 22:20:24,768 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-10 22:20:24,771 INFO L83 FinitePrefix]: Finished finitePrefix Result has 486 conditions, 461 events. 99/461 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 2219 event pairs, 1 based on Foata normal form. 0/308 useless extension candidates. Maximal degree in co-relation 317. Up to 16 conditions per place. [2024-11-10 22:20:24,772 INFO L82 GeneralOperation]: Start removeDead. Operand has 180 places, 224 transitions, 475 flow [2024-11-10 22:20:24,777 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 180 places, 224 transitions, 475 flow [2024-11-10 22:20:24,778 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:20:24,778 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;@5dcbd661, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:20:24,778 INFO L334 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2024-11-10 22:20:24,782 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:20:24,782 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events. [2024-11-10 22:20:24,782 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:20:24,782 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:20:24,782 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 22:20:24,782 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2024-11-10 22:20:24,782 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:20:24,782 INFO L85 PathProgramCache]: Analyzing trace with hash 33471091, now seen corresponding path program 1 times [2024-11-10 22:20:24,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:20:24,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926618392] [2024-11-10 22:20:24,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:20:24,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:20:24,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:20:24,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:20:24,816 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:20:24,817 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926618392] [2024-11-10 22:20:24,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926618392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:20:24,817 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:20:24,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:20:24,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986087424] [2024-11-10 22:20:24,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:20:24,817 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:20:24,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:20:24,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:20:24,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:20:24,824 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 224 [2024-11-10 22:20:24,825 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 180 places, 224 transitions, 475 flow. Second operand has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-10 22:20:24,825 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:20:24,825 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 224 [2024-11-10 22:20:24,825 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand