./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_60-invariant_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_60-invariant_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 ca8ac8d2a0a0bfcebfb7f99229747142c166641dd0f1bf091ac2b4ae67e9ee75 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 19:38:50,213 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 19:38:50,262 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2025-03-17 19:38:50,265 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 19:38:50,266 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 19:38:50,286 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 19:38:50,287 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 19:38:50,287 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 19:38:50,287 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-17 19:38:50,287 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-17 19:38:50,288 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 19:38:50,288 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 19:38:50,288 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 19:38:50,288 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 19:38:50,288 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 19:38:50,289 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 19:38:50,289 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 19:38:50,289 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 19:38:50,289 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 19:38:50,289 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 19:38:50,289 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 19:38:50,289 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 19:38:50,289 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 19:38:50,289 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 19:38:50,289 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2025-03-17 19:38:50,290 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 19:38:50,290 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 19:38:50,290 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 19:38:50,290 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 19:38:50,290 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 19:38:50,290 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 19:38:50,290 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 19:38:50,291 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-17 19:38:50,291 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 19:38:50,291 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:38:50,291 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 19:38:50,291 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 19:38:50,291 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 19:38:50,291 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 19:38:50,291 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 19:38:50,291 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 19:38:50,291 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 19:38:50,291 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 19:38:50,291 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 19:38:50,291 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 19:38:50,292 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ca8ac8d2a0a0bfcebfb7f99229747142c166641dd0f1bf091ac2b4ae67e9ee75 [2025-03-17 19:38:50,537 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 19:38:50,546 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 19:38:50,548 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 19:38:50,549 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 19:38:50,549 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 19:38:50,550 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_60-invariant_racefree.i [2025-03-17 19:38:51,682 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/034ea8887/28cc5060a7e84e0393ba4e677c177c97/FLAG48c3a2de9 [2025-03-17 19:38:51,961 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 19:38:51,962 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_60-invariant_racefree.i [2025-03-17 19:38:51,977 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/034ea8887/28cc5060a7e84e0393ba4e677c177c97/FLAG48c3a2de9 [2025-03-17 19:38:52,253 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/034ea8887/28cc5060a7e84e0393ba4e677c177c97 [2025-03-17 19:38:52,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 19:38:52,256 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 19:38:52,257 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 19:38:52,257 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 19:38:52,260 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 19:38:52,260 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:38:52" (1/1) ... [2025-03-17 19:38:52,261 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b32d127 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:38:52, skipping insertion in model container [2025-03-17 19:38:52,262 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 07:38:52" (1/1) ... [2025-03-17 19:38:52,283 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 19:38:52,487 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:38:52,499 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 19:38:52,541 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 19:38:52,567 INFO L204 MainTranslator]: Completed translation [2025-03-17 19:38:52,568 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:38:52 WrapperNode [2025-03-17 19:38:52,568 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 19:38:52,569 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 19:38:52,569 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 19:38:52,569 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 19:38:52,573 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:38:52" (1/1) ... [2025-03-17 19:38:52,580 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:38:52" (1/1) ... [2025-03-17 19:38:52,596 INFO L138 Inliner]: procedures = 171, calls = 44, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 167 [2025-03-17 19:38:52,597 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 19:38:52,597 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 19:38:52,597 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 19:38:52,597 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 19:38:52,604 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:38:52" (1/1) ... [2025-03-17 19:38:52,604 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:38:52" (1/1) ... [2025-03-17 19:38:52,606 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:38:52" (1/1) ... [2025-03-17 19:38:52,619 INFO L175 MemorySlicer]: Split 14 memory accesses to 4 slices as follows [2, 5, 5, 2]. 36 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 1]. [2025-03-17 19:38:52,619 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:38:52" (1/1) ... [2025-03-17 19:38:52,619 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:38:52" (1/1) ... [2025-03-17 19:38:52,625 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:38:52" (1/1) ... [2025-03-17 19:38:52,625 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:38:52" (1/1) ... [2025-03-17 19:38:52,627 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:38:52" (1/1) ... [2025-03-17 19:38:52,627 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:38:52" (1/1) ... [2025-03-17 19:38:52,629 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 19:38:52,630 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 19:38:52,630 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 19:38:52,630 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 19:38:52,631 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:38:52" (1/1) ... [2025-03-17 19:38:52,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 19:38:52,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 19:38:52,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 19:38:52,657 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 19:38:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-17 19:38:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-17 19:38:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-17 19:38:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2025-03-17 19:38:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-17 19:38:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-17 19:38:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-17 19:38:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2025-03-17 19:38:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-03-17 19:38:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 19:38:52,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 19:38:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2025-03-17 19:38:52,675 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2025-03-17 19:38:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 19:38:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-17 19:38:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-17 19:38:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-17 19:38:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2025-03-17 19:38:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-03-17 19:38:52,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 19:38:52,675 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 19:38:52,676 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 19:38:52,766 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 19:38:52,768 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 19:38:52,963 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L711: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2025-03-17 19:38:52,964 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L711-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2025-03-17 19:38:53,029 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 19:38:53,030 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 19:38:53,162 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 19:38:53,162 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 19:38:53,163 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:38:53 BoogieIcfgContainer [2025-03-17 19:38:53,163 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 19:38:53,165 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 19:38:53,165 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 19:38:53,168 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 19:38:53,168 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 07:38:52" (1/3) ... [2025-03-17 19:38:53,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b062f5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:38:53, skipping insertion in model container [2025-03-17 19:38:53,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 07:38:52" (2/3) ... [2025-03-17 19:38:53,170 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b062f5c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 07:38:53, skipping insertion in model container [2025-03-17 19:38:53,170 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 07:38:53" (3/3) ... [2025-03-17 19:38:53,171 INFO L128 eAbstractionObserver]: Analyzing ICFG 28-race_reach_60-invariant_racefree.i [2025-03-17 19:38:53,182 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 19:38:53,183 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 28-race_reach_60-invariant_racefree.i that has 2 procedures, 78 locations, 1 initial locations, 8 loop locations, and 12 error locations. [2025-03-17 19:38:53,183 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 19:38:53,233 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-17 19:38:53,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 81 places, 96 transitions, 199 flow [2025-03-17 19:38:53,308 INFO L124 PetriNetUnfolderBase]: 26/136 cut-off events. [2025-03-17 19:38:53,312 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 19:38:53,315 INFO L83 FinitePrefix]: Finished finitePrefix Result has 141 conditions, 136 events. 26/136 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 564 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 87. Up to 6 conditions per place. [2025-03-17 19:38:53,316 INFO L82 GeneralOperation]: Start removeDead. Operand has 81 places, 96 transitions, 199 flow [2025-03-17 19:38:53,318 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 81 places, 95 transitions, 197 flow [2025-03-17 19:38:53,328 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 19:38:53,336 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;@53809c0f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 19:38:53,336 INFO L334 AbstractCegarLoop]: Starting to check reachability of 17 error locations. [2025-03-17 19:38:53,343 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 19:38:53,345 INFO L124 PetriNetUnfolderBase]: 0/9 cut-off events. [2025-03-17 19:38:53,345 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 19:38:53,345 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:38:53,346 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-03-17 19:38:53,347 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-03-17 19:38:53,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:38:53,352 INFO L85 PathProgramCache]: Analyzing trace with hash 409874331, now seen corresponding path program 1 times [2025-03-17 19:38:53,357 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:38:53,357 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926171406] [2025-03-17 19:38:53,358 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:38:53,358 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:38:53,423 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:38:53,444 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:38:53,445 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:38:53,445 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:38:53,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:38:53,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:38:53,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926171406] [2025-03-17 19:38:53,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926171406] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:38:53,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:38:53,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:38:53,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [76006025] [2025-03-17 19:38:53,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:38:53,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:38:53,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:38:53,652 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:38:53,652 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:38:53,664 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 96 [2025-03-17 19:38:53,667 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 95 transitions, 197 flow. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:38:53,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:38:53,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 96 [2025-03-17 19:38:53,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:38:53,933 INFO L124 PetriNetUnfolderBase]: 301/918 cut-off events. [2025-03-17 19:38:53,933 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 19:38:53,936 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1563 conditions, 918 events. 301/918 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 5652 event pairs, 0 based on Foata normal form. 164/1014 useless extension candidates. Maximal degree in co-relation 1529. Up to 591 conditions per place. [2025-03-17 19:38:53,942 INFO L140 encePairwiseOnDemand]: 74/96 looper letters, 66 selfloop transitions, 3 changer transitions 0/108 dead transitions. [2025-03-17 19:38:53,942 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 108 transitions, 361 flow [2025-03-17 19:38:53,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:38:53,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:38:53,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 260 transitions. [2025-03-17 19:38:53,955 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6770833333333334 [2025-03-17 19:38:53,956 INFO L175 Difference]: Start difference. First operand has 81 places, 95 transitions, 197 flow. Second operand 4 states and 260 transitions. [2025-03-17 19:38:53,956 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 108 transitions, 361 flow [2025-03-17 19:38:53,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 108 transitions, 361 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 19:38:53,964 INFO L231 Difference]: Finished difference. Result has 83 places, 77 transitions, 171 flow [2025-03-17 19:38:53,966 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=96, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=171, PETRI_PLACES=83, PETRI_TRANSITIONS=77} [2025-03-17 19:38:53,968 INFO L279 CegarLoopForPetriNet]: 81 programPoint places, 2 predicate places. [2025-03-17 19:38:53,970 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 77 transitions, 171 flow [2025-03-17 19:38:53,970 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:38:53,970 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:38:53,970 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2025-03-17 19:38:53,970 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 19:38:53,972 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 14 more)] === [2025-03-17 19:38:53,972 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:38:53,973 INFO L85 PathProgramCache]: Analyzing trace with hash -25506921, now seen corresponding path program 1 times [2025-03-17 19:38:53,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:38:53,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444019228] [2025-03-17 19:38:53,973 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:38:53,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:38:53,983 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 19:38:53,999 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 19:38:54,000 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:38:54,000 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:38:54,000 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:38:54,005 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 8 statements into 1 equivalence classes. [2025-03-17 19:38:54,017 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 8 of 8 statements. [2025-03-17 19:38:54,017 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:38:54,017 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:38:54,036 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:38:54,036 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 19:38:54,037 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 17 remaining) [2025-03-17 19:38:54,038 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 17 remaining) [2025-03-17 19:38:54,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 17 remaining) [2025-03-17 19:38:54,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 17 remaining) [2025-03-17 19:38:54,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 17 remaining) [2025-03-17 19:38:54,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 17 remaining) [2025-03-17 19:38:54,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 17 remaining) [2025-03-17 19:38:54,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 17 remaining) [2025-03-17 19:38:54,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 17 remaining) [2025-03-17 19:38:54,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 17 remaining) [2025-03-17 19:38:54,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 17 remaining) [2025-03-17 19:38:54,039 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 17 remaining) [2025-03-17 19:38:54,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 17 remaining) [2025-03-17 19:38:54,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 17 remaining) [2025-03-17 19:38:54,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 17 remaining) [2025-03-17 19:38:54,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 17 remaining) [2025-03-17 19:38:54,040 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 17 remaining) [2025-03-17 19:38:54,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 19:38:54,040 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1] [2025-03-17 19:38:54,042 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-17 19:38:54,042 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-17 19:38:54,068 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-17 19:38:54,071 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 117 places, 140 transitions, 296 flow [2025-03-17 19:38:54,089 INFO L124 PetriNetUnfolderBase]: 45/239 cut-off events. [2025-03-17 19:38:54,090 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-17 19:38:54,091 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 239 events. 45/239 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 1105 event pairs, 0 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 144. Up to 9 conditions per place. [2025-03-17 19:38:54,092 INFO L82 GeneralOperation]: Start removeDead. Operand has 117 places, 140 transitions, 296 flow [2025-03-17 19:38:54,095 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 117 places, 140 transitions, 296 flow [2025-03-17 19:38:54,095 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 19:38:54,096 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;@53809c0f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 19:38:54,096 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2025-03-17 19:38:54,098 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 19:38:54,098 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2025-03-17 19:38:54,099 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 19:38:54,099 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:38:54,099 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-03-17 19:38:54,099 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-03-17 19:38:54,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:38:54,099 INFO L85 PathProgramCache]: Analyzing trace with hash 543517393, now seen corresponding path program 1 times [2025-03-17 19:38:54,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:38:54,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404158429] [2025-03-17 19:38:54,099 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:38:54,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:38:54,105 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:38:54,108 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:38:54,108 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:38:54,108 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:38:54,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:38:54,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:38:54,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404158429] [2025-03-17 19:38:54,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404158429] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:38:54,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:38:54,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:38:54,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709588420] [2025-03-17 19:38:54,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:38:54,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:38:54,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:38:54,171 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:38:54,171 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:38:54,182 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 140 [2025-03-17 19:38:54,183 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 140 transitions, 296 flow. Second operand has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:38:54,183 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:38:54,183 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 140 [2025-03-17 19:38:54,183 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:38:55,949 INFO L124 PetriNetUnfolderBase]: 11565/23833 cut-off events. [2025-03-17 19:38:55,950 INFO L125 PetriNetUnfolderBase]: For 130/130 co-relation queries the response was YES. [2025-03-17 19:38:55,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41587 conditions, 23833 events. 11565/23833 cut-off events. For 130/130 co-relation queries the response was YES. Maximal size of possible extension queue 619. Compared 227448 event pairs, 5340 based on Foata normal form. 4072/26028 useless extension candidates. Maximal degree in co-relation 3258. Up to 17618 conditions per place. [2025-03-17 19:38:56,110 INFO L140 encePairwiseOnDemand]: 110/140 looper letters, 88 selfloop transitions, 3 changer transitions 0/149 dead transitions. [2025-03-17 19:38:56,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 149 transitions, 496 flow [2025-03-17 19:38:56,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:38:56,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:38:56,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 366 transitions. [2025-03-17 19:38:56,114 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6535714285714286 [2025-03-17 19:38:56,115 INFO L175 Difference]: Start difference. First operand has 117 places, 140 transitions, 296 flow. Second operand 4 states and 366 transitions. [2025-03-17 19:38:56,115 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 149 transitions, 496 flow [2025-03-17 19:38:56,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 149 transitions, 496 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 19:38:56,119 INFO L231 Difference]: Finished difference. Result has 122 places, 118 transitions, 272 flow [2025-03-17 19:38:56,119 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=272, PETRI_PLACES=122, PETRI_TRANSITIONS=118} [2025-03-17 19:38:56,120 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, 5 predicate places. [2025-03-17 19:38:56,120 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 118 transitions, 272 flow [2025-03-17 19:38:56,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.25) internal successors, (237), 4 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:38:56,120 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:38:56,120 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2025-03-17 19:38:56,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 19:38:56,121 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-03-17 19:38:56,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:38:56,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1217854221, now seen corresponding path program 1 times [2025-03-17 19:38:56,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:38:56,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30568027] [2025-03-17 19:38:56,121 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:38:56,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:38:56,134 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 10 statements into 1 equivalence classes. [2025-03-17 19:38:56,139 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 10 of 10 statements. [2025-03-17 19:38:56,142 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:38:56,143 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:38:56,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:38:56,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:38:56,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30568027] [2025-03-17 19:38:56,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30568027] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:38:56,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:38:56,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:38:56,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [959001323] [2025-03-17 19:38:56,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:38:56,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 19:38:56,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:38:56,219 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 19:38:56,219 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2025-03-17 19:38:56,230 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 140 [2025-03-17 19:38:56,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 118 transitions, 272 flow. Second operand has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:38:56,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:38:56,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 140 [2025-03-17 19:38:56,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:38:57,851 INFO L124 PetriNetUnfolderBase]: 10761/21829 cut-off events. [2025-03-17 19:38:57,851 INFO L125 PetriNetUnfolderBase]: For 864/864 co-relation queries the response was YES. [2025-03-17 19:38:57,877 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39791 conditions, 21829 events. 10761/21829 cut-off events. For 864/864 co-relation queries the response was YES. Maximal size of possible extension queue 565. Compared 205150 event pairs, 480 based on Foata normal form. 256/20816 useless extension candidates. Maximal degree in co-relation 3244. Up to 13216 conditions per place. [2025-03-17 19:38:57,936 INFO L140 encePairwiseOnDemand]: 135/140 looper letters, 144 selfloop transitions, 6 changer transitions 0/208 dead transitions. [2025-03-17 19:38:57,936 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 208 transitions, 750 flow [2025-03-17 19:38:57,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 19:38:57,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 19:38:57,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 499 transitions. [2025-03-17 19:38:57,938 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.594047619047619 [2025-03-17 19:38:57,938 INFO L175 Difference]: Start difference. First operand has 122 places, 118 transitions, 272 flow. Second operand 6 states and 499 transitions. [2025-03-17 19:38:57,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 126 places, 208 transitions, 750 flow [2025-03-17 19:38:57,940 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 208 transitions, 748 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-03-17 19:38:57,944 INFO L231 Difference]: Finished difference. Result has 125 places, 117 transitions, 278 flow [2025-03-17 19:38:57,944 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=278, PETRI_PLACES=125, PETRI_TRANSITIONS=117} [2025-03-17 19:38:57,945 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, 8 predicate places. [2025-03-17 19:38:57,945 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 117 transitions, 278 flow [2025-03-17 19:38:57,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:38:57,945 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:38:57,945 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2025-03-17 19:38:57,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 19:38:57,945 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-03-17 19:38:57,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:38:57,945 INFO L85 PathProgramCache]: Analyzing trace with hash 901225273, now seen corresponding path program 1 times [2025-03-17 19:38:57,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:38:57,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011802385] [2025-03-17 19:38:57,946 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:38:57,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:38:57,955 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 11 statements into 1 equivalence classes. [2025-03-17 19:38:57,965 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 11 of 11 statements. [2025-03-17 19:38:57,965 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:38:57,965 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:38:58,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:38:58,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:38:58,015 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011802385] [2025-03-17 19:38:58,015 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011802385] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:38:58,015 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:38:58,015 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 19:38:58,016 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617206040] [2025-03-17 19:38:58,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:38:58,016 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:38:58,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:38:58,016 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:38:58,016 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:38:58,022 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 140 [2025-03-17 19:38:58,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 117 transitions, 278 flow. Second operand has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:38:58,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:38:58,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 140 [2025-03-17 19:38:58,023 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:38:59,151 INFO L124 PetriNetUnfolderBase]: 10565/21257 cut-off events. [2025-03-17 19:38:59,151 INFO L125 PetriNetUnfolderBase]: For 2025/2025 co-relation queries the response was YES. [2025-03-17 19:38:59,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39323 conditions, 21257 events. 10565/21257 cut-off events. For 2025/2025 co-relation queries the response was YES. Maximal size of possible extension queue 546. Compared 197158 event pairs, 735 based on Foata normal form. 256/20509 useless extension candidates. Maximal degree in co-relation 18611. Up to 14236 conditions per place. [2025-03-17 19:38:59,227 INFO L140 encePairwiseOnDemand]: 135/140 looper letters, 113 selfloop transitions, 6 changer transitions 0/177 dead transitions. [2025-03-17 19:38:59,227 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 177 transitions, 634 flow [2025-03-17 19:38:59,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-17 19:38:59,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-17 19:38:59,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 350 transitions. [2025-03-17 19:38:59,228 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.625 [2025-03-17 19:38:59,229 INFO L175 Difference]: Start difference. First operand has 125 places, 117 transitions, 278 flow. Second operand 4 states and 350 transitions. [2025-03-17 19:38:59,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 177 transitions, 634 flow [2025-03-17 19:38:59,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 177 transitions, 618 flow, removed 3 selfloop flow, removed 5 redundant places. [2025-03-17 19:38:59,242 INFO L231 Difference]: Finished difference. Result has 123 places, 117 transitions, 278 flow [2025-03-17 19:38:59,242 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=258, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=278, PETRI_PLACES=123, PETRI_TRANSITIONS=117} [2025-03-17 19:38:59,243 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, 6 predicate places. [2025-03-17 19:38:59,243 INFO L471 AbstractCegarLoop]: Abstraction has has 123 places, 117 transitions, 278 flow [2025-03-17 19:38:59,243 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 60.25) internal successors, (241), 4 states have internal predecessors, (241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:38:59,243 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:38:59,243 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:38:59,243 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 19:38:59,243 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-03-17 19:38:59,243 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:38:59,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1710647114, now seen corresponding path program 1 times [2025-03-17 19:38:59,243 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:38:59,244 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969241176] [2025-03-17 19:38:59,244 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:38:59,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:38:59,254 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 19:38:59,259 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 19:38:59,259 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:38:59,259 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:38:59,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:38:59,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:38:59,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969241176] [2025-03-17 19:38:59,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969241176] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:38:59,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:38:59,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:38:59,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642410599] [2025-03-17 19:38:59,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:38:59,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 19:38:59,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:38:59,286 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 19:38:59,286 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 19:38:59,290 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 140 [2025-03-17 19:38:59,291 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 117 transitions, 278 flow. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:38:59,291 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:38:59,291 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 140 [2025-03-17 19:38:59,291 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:39:00,794 INFO L124 PetriNetUnfolderBase]: 13607/28133 cut-off events. [2025-03-17 19:39:00,794 INFO L125 PetriNetUnfolderBase]: For 695/695 co-relation queries the response was YES. [2025-03-17 19:39:00,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 49884 conditions, 28133 events. 13607/28133 cut-off events. For 695/695 co-relation queries the response was YES. Maximal size of possible extension queue 687. Compared 268754 event pairs, 5599 based on Foata normal form. 0/26125 useless extension candidates. Maximal degree in co-relation 28514. Up to 10799 conditions per place. [2025-03-17 19:39:00,926 INFO L140 encePairwiseOnDemand]: 126/140 looper letters, 96 selfloop transitions, 12 changer transitions 0/164 dead transitions. [2025-03-17 19:39:00,926 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 164 transitions, 594 flow [2025-03-17 19:39:00,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 19:39:00,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 19:39:00,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 279 transitions. [2025-03-17 19:39:00,927 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6642857142857143 [2025-03-17 19:39:00,927 INFO L175 Difference]: Start difference. First operand has 123 places, 117 transitions, 278 flow. Second operand 3 states and 279 transitions. [2025-03-17 19:39:00,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 164 transitions, 594 flow [2025-03-17 19:39:00,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 164 transitions, 586 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:39:00,931 INFO L231 Difference]: Finished difference. Result has 125 places, 127 transitions, 362 flow [2025-03-17 19:39:00,931 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=362, PETRI_PLACES=125, PETRI_TRANSITIONS=127} [2025-03-17 19:39:00,931 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, 8 predicate places. [2025-03-17 19:39:00,931 INFO L471 AbstractCegarLoop]: Abstraction has has 125 places, 127 transitions, 362 flow [2025-03-17 19:39:00,932 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:39:00,932 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:39:00,932 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 19:39:00,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 19:39:00,932 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-03-17 19:39:00,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:39:00,932 INFO L85 PathProgramCache]: Analyzing trace with hash 2047802761, now seen corresponding path program 1 times [2025-03-17 19:39:00,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:39:00,933 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292011175] [2025-03-17 19:39:00,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:39:00,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:39:00,940 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-17 19:39:00,943 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-17 19:39:00,944 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:39:00,944 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:39:01,005 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:39:01,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:39:01,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292011175] [2025-03-17 19:39:01,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292011175] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:39:01,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:39:01,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2025-03-17 19:39:01,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822714072] [2025-03-17 19:39:01,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:39:01,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2025-03-17 19:39:01,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:39:01,006 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2025-03-17 19:39:01,006 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2025-03-17 19:39:01,014 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 140 [2025-03-17 19:39:01,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 127 transitions, 362 flow. Second operand has 5 states, 5 states have (on average 59.8) internal successors, (299), 5 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:39:01,015 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:39:01,015 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 140 [2025-03-17 19:39:01,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:39:02,304 INFO L124 PetriNetUnfolderBase]: 12460/26559 cut-off events. [2025-03-17 19:39:02,304 INFO L125 PetriNetUnfolderBase]: For 6076/6138 co-relation queries the response was YES. [2025-03-17 19:39:02,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51630 conditions, 26559 events. 12460/26559 cut-off events. For 6076/6138 co-relation queries the response was YES. Maximal size of possible extension queue 688. Compared 260360 event pairs, 6526 based on Foata normal form. 8/24094 useless extension candidates. Maximal degree in co-relation 32237. Up to 19052 conditions per place. [2025-03-17 19:39:02,417 INFO L140 encePairwiseOnDemand]: 136/140 looper letters, 88 selfloop transitions, 4 changer transitions 0/152 dead transitions. [2025-03-17 19:39:02,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 152 transitions, 606 flow [2025-03-17 19:39:02,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-03-17 19:39:02,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-03-17 19:39:02,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 375 transitions. [2025-03-17 19:39:02,418 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2025-03-17 19:39:02,418 INFO L175 Difference]: Start difference. First operand has 125 places, 127 transitions, 362 flow. Second operand 5 states and 375 transitions. [2025-03-17 19:39:02,418 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 152 transitions, 606 flow [2025-03-17 19:39:02,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 152 transitions, 582 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 19:39:02,432 INFO L231 Difference]: Finished difference. Result has 128 places, 127 transitions, 350 flow [2025-03-17 19:39:02,432 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=140, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=123, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=123, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=350, PETRI_PLACES=128, PETRI_TRANSITIONS=127} [2025-03-17 19:39:02,433 INFO L279 CegarLoopForPetriNet]: 117 programPoint places, 11 predicate places. [2025-03-17 19:39:02,433 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 127 transitions, 350 flow [2025-03-17 19:39:02,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.8) internal successors, (299), 5 states have internal predecessors, (299), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:39:02,433 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:39:02,433 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2025-03-17 19:39:02,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 19:39:02,433 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2025-03-17 19:39:02,434 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:39:02,434 INFO L85 PathProgramCache]: Analyzing trace with hash -1505888651, now seen corresponding path program 1 times [2025-03-17 19:39:02,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:39:02,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600350079] [2025-03-17 19:39:02,434 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:39:02,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:39:02,440 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 19:39:02,446 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 19:39:02,447 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:39:02,447 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:39:02,449 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 19:39:02,453 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 13 statements into 1 equivalence classes. [2025-03-17 19:39:02,459 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 13 of 13 statements. [2025-03-17 19:39:02,459 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:39:02,459 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 19:39:02,465 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 19:39:02,465 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 19:39:02,466 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2025-03-17 19:39:02,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2025-03-17 19:39:02,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2025-03-17 19:39:02,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2025-03-17 19:39:02,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2025-03-17 19:39:02,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2025-03-17 19:39:02,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2025-03-17 19:39:02,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2025-03-17 19:39:02,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2025-03-17 19:39:02,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2025-03-17 19:39:02,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2025-03-17 19:39:02,466 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2025-03-17 19:39:02,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2025-03-17 19:39:02,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2025-03-17 19:39:02,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2025-03-17 19:39:02,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2025-03-17 19:39:02,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2025-03-17 19:39:02,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2025-03-17 19:39:02,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2025-03-17 19:39:02,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2025-03-17 19:39:02,467 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2025-03-17 19:39:02,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-17 19:39:02,467 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-03-17 19:39:02,468 WARN L246 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-17 19:39:02,468 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2025-03-17 19:39:02,487 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2025-03-17 19:39:02,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 153 places, 184 transitions, 395 flow [2025-03-17 19:39:02,506 INFO L124 PetriNetUnfolderBase]: 67/361 cut-off events. [2025-03-17 19:39:02,506 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2025-03-17 19:39:02,508 INFO L83 FinitePrefix]: Finished finitePrefix Result has 386 conditions, 361 events. 67/361 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1783 event pairs, 1 based on Foata normal form. 0/242 useless extension candidates. Maximal degree in co-relation 254. Up to 12 conditions per place. [2025-03-17 19:39:02,508 INFO L82 GeneralOperation]: Start removeDead. Operand has 153 places, 184 transitions, 395 flow [2025-03-17 19:39:02,510 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 153 places, 184 transitions, 395 flow [2025-03-17 19:39:02,511 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 19:39:02,511 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;@53809c0f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 19:39:02,511 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2025-03-17 19:39:02,513 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 19:39:02,513 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2025-03-17 19:39:02,513 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 19:39:02,513 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 19:39:02,513 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-03-17 19:39:02,513 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2025-03-17 19:39:02,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 19:39:02,513 INFO L85 PathProgramCache]: Analyzing trace with hash 719149875, now seen corresponding path program 1 times [2025-03-17 19:39:02,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 19:39:02,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380767654] [2025-03-17 19:39:02,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 19:39:02,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 19:39:02,518 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-17 19:39:02,519 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-17 19:39:02,519 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 19:39:02,519 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 19:39:02,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 19:39:02,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 19:39:02,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380767654] [2025-03-17 19:39:02,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380767654] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 19:39:02,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 19:39:02,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 19:39:02,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546398189] [2025-03-17 19:39:02,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 19:39:02,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-17 19:39:02,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 19:39:02,544 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-17 19:39:02,544 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-17 19:39:02,550 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 184 [2025-03-17 19:39:02,551 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 153 places, 184 transitions, 395 flow. Second operand has 4 states, 4 states have (on average 78.25) internal successors, (313), 4 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 19:39:02,551 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 19:39:02,551 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 184 [2025-03-17 19:39:02,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 19:39:30,627 INFO L124 PetriNetUnfolderBase]: 289359/503323 cut-off events. [2025-03-17 19:39:30,627 INFO L125 PetriNetUnfolderBase]: For 3379/3379 co-relation queries the response was YES. [2025-03-17 19:39:31,595 INFO L83 FinitePrefix]: Finished finitePrefix Result has 893144 conditions, 503323 events. 289359/503323 cut-off events. For 3379/3379 co-relation queries the response was YES. Maximal size of possible extension queue 10207. Compared 5828888 event pairs, 181336 based on Foata normal form. 89384/556844 useless extension candidates. Maximal degree in co-relation 43385. Up to 387827 conditions per place.