./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/chl-word-trans.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/chl-word-trans.wvr.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9cb2b0cbecf02e8cce2fd890595fb88c3204482a27ce7ac6f4ef6fb92949d747 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:52:44,193 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:52:44,268 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:52:44,273 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:52:44,275 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:52:44,307 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:52:44,308 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:52:44,309 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:52:44,309 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:52:44,311 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:52:44,312 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:52:44,312 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:52:44,312 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:52:44,314 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:52:44,315 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:52:44,315 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:52:44,315 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:52:44,316 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:52:44,316 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:52:44,316 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:52:44,316 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:52:44,321 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:52:44,321 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:52:44,321 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:52:44,321 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:52:44,322 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:52:44,322 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:52:44,322 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:52:44,322 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:52:44,322 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:52:44,323 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:52:44,323 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:52:44,323 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:52:44,324 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:52:44,324 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:52:44,325 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:52:44,326 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:52:44,326 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:52:44,326 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:52:44,326 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:52:44,327 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:52:44,327 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:52:44,328 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:52:44,328 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:52:44,328 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9cb2b0cbecf02e8cce2fd890595fb88c3204482a27ce7ac6f4ef6fb92949d747 [2024-11-17 07:52:44,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:52:44,603 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:52:44,607 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:52:44,608 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:52:44,609 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:52:44,610 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/chl-word-trans.wvr.c [2024-11-17 07:52:46,089 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:52:46,302 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:52:46,303 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/chl-word-trans.wvr.c [2024-11-17 07:52:46,314 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53439e76b/2cee81f3fc0d4b0ab4e97f709f8a36c9/FLAG1d24d4ce6 [2024-11-17 07:52:46,662 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/53439e76b/2cee81f3fc0d4b0ab4e97f709f8a36c9 [2024-11-17 07:52:46,665 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:52:46,666 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:52:46,669 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:52:46,669 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:52:46,676 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:52:46,677 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:52:46" (1/1) ... [2024-11-17 07:52:46,680 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2d2aa1ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:46, skipping insertion in model container [2024-11-17 07:52:46,680 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:52:46" (1/1) ... [2024-11-17 07:52:46,706 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:52:46,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:52:46,932 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:52:46,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:52:46,983 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:52:46,983 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:46 WrapperNode [2024-11-17 07:52:46,983 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:52:46,984 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:52:46,985 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:52:46,985 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:52:46,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:46" (1/1) ... [2024-11-17 07:52:46,998 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:46" (1/1) ... [2024-11-17 07:52:47,027 INFO L138 Inliner]: procedures = 24, calls = 30, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 170 [2024-11-17 07:52:47,027 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:52:47,028 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:52:47,028 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:52:47,028 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:52:47,041 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:46" (1/1) ... [2024-11-17 07:52:47,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:46" (1/1) ... [2024-11-17 07:52:47,045 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:46" (1/1) ... [2024-11-17 07:52:47,066 INFO L175 MemorySlicer]: Split 17 memory accesses to 2 slices as follows [2, 15]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 3 writes are split as follows [0, 3]. [2024-11-17 07:52:47,066 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:46" (1/1) ... [2024-11-17 07:52:47,067 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:46" (1/1) ... [2024-11-17 07:52:47,075 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:46" (1/1) ... [2024-11-17 07:52:47,076 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:46" (1/1) ... [2024-11-17 07:52:47,077 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:46" (1/1) ... [2024-11-17 07:52:47,079 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:46" (1/1) ... [2024-11-17 07:52:47,097 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:52:47,103 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:52:47,103 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:52:47,103 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:52:47,104 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:46" (1/1) ... [2024-11-17 07:52:47,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:52:47,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:52:47,177 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 07:52:47,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 07:52:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:52:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-17 07:52:47,219 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-17 07:52:47,219 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-17 07:52:47,220 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-17 07:52:47,220 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-17 07:52:47,220 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-17 07:52:47,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:52:47,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 07:52:47,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 07:52:47,221 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 07:52:47,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-17 07:52:47,221 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:52:47,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:52:47,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 07:52:47,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 07:52:47,224 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:52:47,321 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:52:47,323 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:52:47,762 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:52:47,762 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:52:48,003 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:52:48,003 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:52:48,004 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:52:48 BoogieIcfgContainer [2024-11-17 07:52:48,004 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:52:48,006 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:52:48,006 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:52:48,010 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:52:48,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:52:46" (1/3) ... [2024-11-17 07:52:48,012 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c9a368d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:52:48, skipping insertion in model container [2024-11-17 07:52:48,012 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:52:46" (2/3) ... [2024-11-17 07:52:48,013 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c9a368d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:52:48, skipping insertion in model container [2024-11-17 07:52:48,014 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:52:48" (3/3) ... [2024-11-17 07:52:48,016 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-word-trans.wvr.c [2024-11-17 07:52:48,034 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:52:48,034 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2024-11-17 07:52:48,034 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:52:48,113 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-17 07:52:48,155 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 93 places, 104 transitions, 229 flow [2024-11-17 07:52:48,202 INFO L124 PetriNetUnfolderBase]: 21/101 cut-off events. [2024-11-17 07:52:48,203 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-17 07:52:48,208 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 101 events. 21/101 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 293 event pairs, 0 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 78. Up to 3 conditions per place. [2024-11-17 07:52:48,209 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 104 transitions, 229 flow [2024-11-17 07:52:48,214 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 99 transitions, 213 flow [2024-11-17 07:52:48,227 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:52:48,238 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;@35845cf0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:52:48,239 INFO L334 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2024-11-17 07:52:48,244 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:52:48,244 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events. [2024-11-17 07:52:48,244 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:52:48,244 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:52:48,245 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 07:52:48,246 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-17 07:52:48,251 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:52:48,251 INFO L85 PathProgramCache]: Analyzing trace with hash 21721160, now seen corresponding path program 1 times [2024-11-17 07:52:48,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:52:48,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033088796] [2024-11-17 07:52:48,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:52:48,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:52:48,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:52:48,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:52:48,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:52:48,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033088796] [2024-11-17 07:52:48,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033088796] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:52:48,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:52:48,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:52:48,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613167151] [2024-11-17 07:52:48,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:52:48,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:52:48,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:52:48,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:52:48,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:52:48,703 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 104 [2024-11-17 07:52:48,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 99 transitions, 213 flow. Second operand has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:48,708 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:52:48,708 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 104 [2024-11-17 07:52:48,709 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:52:49,599 INFO L124 PetriNetUnfolderBase]: 3781/7329 cut-off events. [2024-11-17 07:52:49,600 INFO L125 PetriNetUnfolderBase]: For 228/228 co-relation queries the response was YES. [2024-11-17 07:52:49,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12191 conditions, 7329 events. 3781/7329 cut-off events. For 228/228 co-relation queries the response was YES. Maximal size of possible extension queue 443. Compared 57381 event pairs, 2254 based on Foata normal form. 414/5760 useless extension candidates. Maximal degree in co-relation 11504. Up to 4652 conditions per place. [2024-11-17 07:52:49,729 INFO L140 encePairwiseOnDemand]: 82/104 looper letters, 50 selfloop transitions, 10 changer transitions 0/102 dead transitions. [2024-11-17 07:52:49,729 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 102 transitions, 339 flow [2024-11-17 07:52:49,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:52:49,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:52:49,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 255 transitions. [2024-11-17 07:52:49,744 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6129807692307693 [2024-11-17 07:52:49,746 INFO L175 Difference]: Start difference. First operand has 88 places, 99 transitions, 213 flow. Second operand 4 states and 255 transitions. [2024-11-17 07:52:49,747 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 102 transitions, 339 flow [2024-11-17 07:52:49,754 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 102 transitions, 330 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-17 07:52:49,759 INFO L231 Difference]: Finished difference. Result has 89 places, 102 transitions, 280 flow [2024-11-17 07:52:49,762 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=280, PETRI_PLACES=89, PETRI_TRANSITIONS=102} [2024-11-17 07:52:49,766 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 1 predicate places. [2024-11-17 07:52:49,767 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 102 transitions, 280 flow [2024-11-17 07:52:49,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 45.75) internal successors, (183), 4 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:49,767 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:52:49,768 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-17 07:52:49,768 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:52:49,768 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-17 07:52:49,769 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:52:49,769 INFO L85 PathProgramCache]: Analyzing trace with hash -1826122987, now seen corresponding path program 1 times [2024-11-17 07:52:49,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:52:49,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754461228] [2024-11-17 07:52:49,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:52:49,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:52:49,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:52:49,929 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:52:49,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:52:49,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754461228] [2024-11-17 07:52:49,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754461228] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:52:49,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382754163] [2024-11-17 07:52:49,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:52:49,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:52:49,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:52:49,934 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:52:49,935 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 07:52:50,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:52:50,028 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:52:50,036 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:52:50,099 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:52:50,100 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:52:50,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382754163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:52:50,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:52:50,101 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-17 07:52:50,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934386325] [2024-11-17 07:52:50,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:52:50,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:52:50,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:52:50,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:52:50,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:52:50,148 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 104 [2024-11-17 07:52:50,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 102 transitions, 280 flow. Second operand has 6 states, 6 states have (on average 45.833333333333336) internal successors, (275), 6 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:50,150 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:52:50,150 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 104 [2024-11-17 07:52:50,151 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:52:50,824 INFO L124 PetriNetUnfolderBase]: 3781/7326 cut-off events. [2024-11-17 07:52:50,824 INFO L125 PetriNetUnfolderBase]: For 90/90 co-relation queries the response was YES. [2024-11-17 07:52:50,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12143 conditions, 7326 events. 3781/7326 cut-off events. For 90/90 co-relation queries the response was YES. Maximal size of possible extension queue 443. Compared 57344 event pairs, 2254 based on Foata normal form. 3/5346 useless extension candidates. Maximal degree in co-relation 12064. Up to 4637 conditions per place. [2024-11-17 07:52:50,925 INFO L140 encePairwiseOnDemand]: 91/104 looper letters, 40 selfloop transitions, 17 changer transitions 0/99 dead transitions. [2024-11-17 07:52:50,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 99 transitions, 382 flow [2024-11-17 07:52:50,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:52:50,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:52:50,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 330 transitions. [2024-11-17 07:52:50,928 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5288461538461539 [2024-11-17 07:52:50,928 INFO L175 Difference]: Start difference. First operand has 89 places, 102 transitions, 280 flow. Second operand 6 states and 330 transitions. [2024-11-17 07:52:50,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 99 transitions, 382 flow [2024-11-17 07:52:50,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 99 transitions, 382 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:52:50,932 INFO L231 Difference]: Finished difference. Result has 91 places, 99 transitions, 302 flow [2024-11-17 07:52:50,932 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=302, PETRI_PLACES=91, PETRI_TRANSITIONS=99} [2024-11-17 07:52:50,932 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 3 predicate places. [2024-11-17 07:52:50,933 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 99 transitions, 302 flow [2024-11-17 07:52:50,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 45.833333333333336) internal successors, (275), 6 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:50,933 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:52:50,933 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-17 07:52:50,951 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-17 07:52:51,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:52:51,138 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-17 07:52:51,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:52:51,139 INFO L85 PathProgramCache]: Analyzing trace with hash -775237144, now seen corresponding path program 1 times [2024-11-17 07:52:51,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:52:51,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190038087] [2024-11-17 07:52:51,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:52:51,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:52:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:52:51,256 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:52:51,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:52:51,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190038087] [2024-11-17 07:52:51,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190038087] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:52:51,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2143129764] [2024-11-17 07:52:51,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:52:51,258 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:52:51,258 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:52:51,260 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:52:51,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 07:52:51,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:52:51,342 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:52:51,343 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:52:51,375 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:52:51,375 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:52:51,426 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:52:51,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2143129764] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:52:51,427 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:52:51,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-17 07:52:51,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1626744017] [2024-11-17 07:52:51,428 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:52:51,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 07:52:51,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:52:51,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 07:52:51,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-17 07:52:51,518 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 104 [2024-11-17 07:52:51,520 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 99 transitions, 302 flow. Second operand has 12 states, 12 states have (on average 46.083333333333336) internal successors, (553), 12 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:51,520 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:52:51,520 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 104 [2024-11-17 07:52:51,520 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:52:52,424 INFO L124 PetriNetUnfolderBase]: 3790/7380 cut-off events. [2024-11-17 07:52:52,424 INFO L125 PetriNetUnfolderBase]: For 242/242 co-relation queries the response was YES. [2024-11-17 07:52:52,444 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12302 conditions, 7380 events. 3790/7380 cut-off events. For 242/242 co-relation queries the response was YES. Maximal size of possible extension queue 445. Compared 57930 event pairs, 2254 based on Foata normal form. 9/5409 useless extension candidates. Maximal degree in co-relation 12066. Up to 4652 conditions per place. [2024-11-17 07:52:52,479 INFO L140 encePairwiseOnDemand]: 91/104 looper letters, 47 selfloop transitions, 37 changer transitions 0/126 dead transitions. [2024-11-17 07:52:52,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 126 transitions, 644 flow [2024-11-17 07:52:52,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 07:52:52,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-17 07:52:52,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 543 transitions. [2024-11-17 07:52:52,483 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5221153846153846 [2024-11-17 07:52:52,483 INFO L175 Difference]: Start difference. First operand has 91 places, 99 transitions, 302 flow. Second operand 10 states and 543 transitions. [2024-11-17 07:52:52,483 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 126 transitions, 644 flow [2024-11-17 07:52:52,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 126 transitions, 561 flow, removed 16 selfloop flow, removed 5 redundant places. [2024-11-17 07:52:52,489 INFO L231 Difference]: Finished difference. Result has 98 places, 126 transitions, 517 flow [2024-11-17 07:52:52,490 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=99, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=517, PETRI_PLACES=98, PETRI_TRANSITIONS=126} [2024-11-17 07:52:52,491 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 10 predicate places. [2024-11-17 07:52:52,491 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 126 transitions, 517 flow [2024-11-17 07:52:52,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 46.083333333333336) internal successors, (553), 12 states have internal predecessors, (553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:52,492 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:52:52,493 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:52:52,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 07:52:52,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-17 07:52:52,697 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-17 07:52:52,698 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:52:52,698 INFO L85 PathProgramCache]: Analyzing trace with hash 2019389438, now seen corresponding path program 1 times [2024-11-17 07:52:52,698 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:52:52,698 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684298058] [2024-11-17 07:52:52,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:52:52,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:52:52,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:52:52,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:52:52,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:52:52,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684298058] [2024-11-17 07:52:52,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684298058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:52:52,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:52:52,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:52:52,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361593491] [2024-11-17 07:52:52,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:52:52,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:52:52,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:52:52,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:52:52,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:52:52,799 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 104 [2024-11-17 07:52:52,800 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 126 transitions, 517 flow. Second operand has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:52,800 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:52:52,800 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 104 [2024-11-17 07:52:52,800 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:52:53,847 INFO L124 PetriNetUnfolderBase]: 6689/11535 cut-off events. [2024-11-17 07:52:53,848 INFO L125 PetriNetUnfolderBase]: For 287/287 co-relation queries the response was YES. [2024-11-17 07:52:53,903 INFO L83 FinitePrefix]: Finished finitePrefix Result has 20370 conditions, 11535 events. 6689/11535 cut-off events. For 287/287 co-relation queries the response was YES. Maximal size of possible extension queue 451. Compared 82131 event pairs, 3232 based on Foata normal form. 146/8905 useless extension candidates. Maximal degree in co-relation 20266. Up to 6599 conditions per place. [2024-11-17 07:52:53,965 INFO L140 encePairwiseOnDemand]: 98/104 looper letters, 131 selfloop transitions, 4 changer transitions 0/177 dead transitions. [2024-11-17 07:52:53,965 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 177 transitions, 895 flow [2024-11-17 07:52:53,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:52:53,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:52:53,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 293 transitions. [2024-11-17 07:52:53,967 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7043269230769231 [2024-11-17 07:52:53,967 INFO L175 Difference]: Start difference. First operand has 98 places, 126 transitions, 517 flow. Second operand 4 states and 293 transitions. [2024-11-17 07:52:53,968 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 177 transitions, 895 flow [2024-11-17 07:52:53,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 177 transitions, 858 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-17 07:52:53,974 INFO L231 Difference]: Finished difference. Result has 101 places, 129 transitions, 509 flow [2024-11-17 07:52:53,974 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=480, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=509, PETRI_PLACES=101, PETRI_TRANSITIONS=129} [2024-11-17 07:52:53,975 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 13 predicate places. [2024-11-17 07:52:53,975 INFO L471 AbstractCegarLoop]: Abstraction has has 101 places, 129 transitions, 509 flow [2024-11-17 07:52:53,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:53,976 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:52:53,976 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:52:53,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 07:52:53,977 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-17 07:52:53,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:52:53,977 INFO L85 PathProgramCache]: Analyzing trace with hash -1823467958, now seen corresponding path program 1 times [2024-11-17 07:52:53,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:52:53,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554064018] [2024-11-17 07:52:53,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:52:53,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:52:53,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:52:54,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:52:54,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:52:54,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554064018] [2024-11-17 07:52:54,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554064018] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:52:54,123 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:52:54,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:52:54,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785990056] [2024-11-17 07:52:54,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:52:54,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:52:54,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:52:54,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:52:54,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:52:54,196 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 104 [2024-11-17 07:52:54,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 129 transitions, 509 flow. Second operand has 6 states, 6 states have (on average 47.833333333333336) internal successors, (287), 6 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:54,197 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:52:54,197 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 104 [2024-11-17 07:52:54,197 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:52:56,363 INFO L124 PetriNetUnfolderBase]: 12862/24050 cut-off events. [2024-11-17 07:52:56,363 INFO L125 PetriNetUnfolderBase]: For 2655/2667 co-relation queries the response was YES. [2024-11-17 07:52:56,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42867 conditions, 24050 events. 12862/24050 cut-off events. For 2655/2667 co-relation queries the response was YES. Maximal size of possible extension queue 1095. Compared 214362 event pairs, 7293 based on Foata normal form. 266/18648 useless extension candidates. Maximal degree in co-relation 42731. Up to 7953 conditions per place. [2024-11-17 07:52:56,601 INFO L140 encePairwiseOnDemand]: 96/104 looper letters, 133 selfloop transitions, 11 changer transitions 0/185 dead transitions. [2024-11-17 07:52:56,601 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 185 transitions, 992 flow [2024-11-17 07:52:56,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 07:52:56,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 07:52:56,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 421 transitions. [2024-11-17 07:52:56,604 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5782967032967034 [2024-11-17 07:52:56,604 INFO L175 Difference]: Start difference. First operand has 101 places, 129 transitions, 509 flow. Second operand 7 states and 421 transitions. [2024-11-17 07:52:56,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 185 transitions, 992 flow [2024-11-17 07:52:56,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 185 transitions, 987 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:52:56,613 INFO L231 Difference]: Finished difference. Result has 110 places, 133 transitions, 569 flow [2024-11-17 07:52:56,615 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=506, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=118, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=569, PETRI_PLACES=110, PETRI_TRANSITIONS=133} [2024-11-17 07:52:56,616 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 22 predicate places. [2024-11-17 07:52:56,616 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 133 transitions, 569 flow [2024-11-17 07:52:56,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 47.833333333333336) internal successors, (287), 6 states have internal predecessors, (287), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:56,617 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:52:56,617 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:52:56,617 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 07:52:56,617 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-17 07:52:56,618 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:52:56,618 INFO L85 PathProgramCache]: Analyzing trace with hash 154109561, now seen corresponding path program 1 times [2024-11-17 07:52:56,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:52:56,618 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870815686] [2024-11-17 07:52:56,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:52:56,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:52:56,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:52:56,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:52:56,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:52:56,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870815686] [2024-11-17 07:52:56,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870815686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:52:56,693 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:52:56,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:52:56,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72917436] [2024-11-17 07:52:56,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:52:56,693 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:52:56,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:52:56,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:52:56,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:52:56,703 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 104 [2024-11-17 07:52:56,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 133 transitions, 569 flow. Second operand has 4 states, 4 states have (on average 51.0) internal successors, (204), 4 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:56,704 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:52:56,704 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 104 [2024-11-17 07:52:56,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:52:59,215 INFO L124 PetriNetUnfolderBase]: 19999/34039 cut-off events. [2024-11-17 07:52:59,215 INFO L125 PetriNetUnfolderBase]: For 3919/4291 co-relation queries the response was YES. [2024-11-17 07:52:59,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64038 conditions, 34039 events. 19999/34039 cut-off events. For 3919/4291 co-relation queries the response was YES. Maximal size of possible extension queue 1068. Compared 275562 event pairs, 9604 based on Foata normal form. 448/28565 useless extension candidates. Maximal degree in co-relation 63900. Up to 19248 conditions per place. [2024-11-17 07:52:59,433 INFO L140 encePairwiseOnDemand]: 98/104 looper letters, 137 selfloop transitions, 4 changer transitions 0/186 dead transitions. [2024-11-17 07:52:59,433 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 186 transitions, 987 flow [2024-11-17 07:52:59,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:52:59,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:52:59,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 291 transitions. [2024-11-17 07:52:59,435 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6995192307692307 [2024-11-17 07:52:59,435 INFO L175 Difference]: Start difference. First operand has 110 places, 133 transitions, 569 flow. Second operand 4 states and 291 transitions. [2024-11-17 07:52:59,435 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 186 transitions, 987 flow [2024-11-17 07:52:59,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 186 transitions, 980 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:52:59,443 INFO L231 Difference]: Finished difference. Result has 113 places, 136 transitions, 591 flow [2024-11-17 07:52:59,443 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=562, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=591, PETRI_PLACES=113, PETRI_TRANSITIONS=136} [2024-11-17 07:52:59,444 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 25 predicate places. [2024-11-17 07:52:59,445 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 136 transitions, 591 flow [2024-11-17 07:52:59,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 51.0) internal successors, (204), 4 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:52:59,445 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:52:59,446 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:52:59,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 07:52:59,446 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-17 07:52:59,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:52:59,446 INFO L85 PathProgramCache]: Analyzing trace with hash -692931168, now seen corresponding path program 1 times [2024-11-17 07:52:59,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:52:59,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909268068] [2024-11-17 07:52:59,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:52:59,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:52:59,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:52:59,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:52:59,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:52:59,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909268068] [2024-11-17 07:52:59,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909268068] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:52:59,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:52:59,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:52:59,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420567619] [2024-11-17 07:52:59,559 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:52:59,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:52:59,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:52:59,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:52:59,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:52:59,619 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 104 [2024-11-17 07:52:59,619 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 136 transitions, 591 flow. Second operand has 5 states, 5 states have (on average 48.2) internal successors, (241), 5 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) [2024-11-17 07:52:59,620 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:52:59,620 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 104 [2024-11-17 07:52:59,620 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:53:04,587 INFO L124 PetriNetUnfolderBase]: 36544/68444 cut-off events. [2024-11-17 07:53:04,587 INFO L125 PetriNetUnfolderBase]: For 18949/19081 co-relation queries the response was YES. [2024-11-17 07:53:04,886 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133433 conditions, 68444 events. 36544/68444 cut-off events. For 18949/19081 co-relation queries the response was YES. Maximal size of possible extension queue 2543. Compared 690068 event pairs, 20848 based on Foata normal form. 790/59008 useless extension candidates. Maximal degree in co-relation 133194. Up to 21769 conditions per place. [2024-11-17 07:53:05,148 INFO L140 encePairwiseOnDemand]: 98/104 looper letters, 190 selfloop transitions, 5 changer transitions 0/237 dead transitions. [2024-11-17 07:53:05,149 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 237 transitions, 1393 flow [2024-11-17 07:53:05,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:53:05,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:53:05,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 398 transitions. [2024-11-17 07:53:05,152 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6378205128205128 [2024-11-17 07:53:05,152 INFO L175 Difference]: Start difference. First operand has 113 places, 136 transitions, 591 flow. Second operand 6 states and 398 transitions. [2024-11-17 07:53:05,152 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 237 transitions, 1393 flow [2024-11-17 07:53:05,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 237 transitions, 1386 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:53:05,194 INFO L231 Difference]: Finished difference. Result has 120 places, 138 transitions, 619 flow [2024-11-17 07:53:05,195 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=588, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=619, PETRI_PLACES=120, PETRI_TRANSITIONS=138} [2024-11-17 07:53:05,195 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 32 predicate places. [2024-11-17 07:53:05,195 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 138 transitions, 619 flow [2024-11-17 07:53:05,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.2) internal successors, (241), 5 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) [2024-11-17 07:53:05,196 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:53:05,196 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:53:05,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 07:53:05,196 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-17 07:53:05,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:53:05,197 INFO L85 PathProgramCache]: Analyzing trace with hash 482398020, now seen corresponding path program 1 times [2024-11-17 07:53:05,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:53:05,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722704239] [2024-11-17 07:53:05,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:53:05,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:53:05,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:53:05,288 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:53:05,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:53:05,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722704239] [2024-11-17 07:53:05,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722704239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:53:05,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:53:05,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:53:05,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223983939] [2024-11-17 07:53:05,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:53:05,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:53:05,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:53:05,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:53:05,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:53:05,359 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 104 [2024-11-17 07:53:05,360 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 138 transitions, 619 flow. Second operand has 5 states, 5 states have (on average 48.6) internal successors, (243), 5 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:05,360 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:53:05,360 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 104 [2024-11-17 07:53:05,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:53:15,656 INFO L124 PetriNetUnfolderBase]: 75585/137490 cut-off events. [2024-11-17 07:53:15,657 INFO L125 PetriNetUnfolderBase]: For 24151/24351 co-relation queries the response was YES. [2024-11-17 07:53:16,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 263004 conditions, 137490 events. 75585/137490 cut-off events. For 24151/24351 co-relation queries the response was YES. Maximal size of possible extension queue 4823. Compared 1461668 event pairs, 43500 based on Foata normal form. 1340/115954 useless extension candidates. Maximal degree in co-relation 262762. Up to 46264 conditions per place. [2024-11-17 07:53:17,102 INFO L140 encePairwiseOnDemand]: 97/104 looper letters, 119 selfloop transitions, 16 changer transitions 0/179 dead transitions. [2024-11-17 07:53:17,102 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 179 transitions, 1001 flow [2024-11-17 07:53:17,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:53:17,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:53:17,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 367 transitions. [2024-11-17 07:53:17,105 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5881410256410257 [2024-11-17 07:53:17,105 INFO L175 Difference]: Start difference. First operand has 120 places, 138 transitions, 619 flow. Second operand 6 states and 367 transitions. [2024-11-17 07:53:17,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 179 transitions, 1001 flow [2024-11-17 07:53:17,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 179 transitions, 999 flow, removed 1 selfloop flow, removed 0 redundant places. [2024-11-17 07:53:17,167 INFO L231 Difference]: Finished difference. Result has 128 places, 140 transitions, 683 flow [2024-11-17 07:53:17,167 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=617, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=138, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=683, PETRI_PLACES=128, PETRI_TRANSITIONS=140} [2024-11-17 07:53:17,167 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 40 predicate places. [2024-11-17 07:53:17,167 INFO L471 AbstractCegarLoop]: Abstraction has has 128 places, 140 transitions, 683 flow [2024-11-17 07:53:17,168 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 48.6) internal successors, (243), 5 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:17,168 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:53:17,168 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1] [2024-11-17 07:53:17,168 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 07:53:17,169 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-17 07:53:17,169 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:53:17,169 INFO L85 PathProgramCache]: Analyzing trace with hash 948219233, now seen corresponding path program 2 times [2024-11-17 07:53:17,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:53:17,170 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087363727] [2024-11-17 07:53:17,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:53:17,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:53:17,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:53:17,329 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:53:17,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:53:17,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087363727] [2024-11-17 07:53:17,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087363727] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:53:17,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1653915531] [2024-11-17 07:53:17,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:53:17,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:53:17,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:53:17,334 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:53:17,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 07:53:17,413 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-17 07:53:17,414 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:53:17,416 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 07:53:17,417 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:53:17,492 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-17 07:53:17,493 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:53:17,532 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-17 07:53:17,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1653915531] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:53:17,532 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:53:17,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-17 07:53:17,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076735069] [2024-11-17 07:53:17,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:53:17,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-17 07:53:17,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:53:17,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-17 07:53:17,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-17 07:53:17,592 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 104 [2024-11-17 07:53:17,593 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 140 transitions, 683 flow. Second operand has 14 states, 14 states have (on average 43.142857142857146) internal successors, (604), 14 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:17,593 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:53:17,593 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 104 [2024-11-17 07:53:17,594 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:53:27,398 INFO L124 PetriNetUnfolderBase]: 67291/127663 cut-off events. [2024-11-17 07:53:27,399 INFO L125 PetriNetUnfolderBase]: For 24578/24722 co-relation queries the response was YES. [2024-11-17 07:53:28,309 INFO L83 FinitePrefix]: Finished finitePrefix Result has 245311 conditions, 127663 events. 67291/127663 cut-off events. For 24578/24722 co-relation queries the response was YES. Maximal size of possible extension queue 4223. Compared 1394639 event pairs, 39872 based on Foata normal form. 8/109559 useless extension candidates. Maximal degree in co-relation 244927. Up to 79863 conditions per place. [2024-11-17 07:53:29,177 INFO L140 encePairwiseOnDemand]: 89/104 looper letters, 54 selfloop transitions, 62 changer transitions 0/160 dead transitions. [2024-11-17 07:53:29,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 160 transitions, 1021 flow [2024-11-17 07:53:29,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-17 07:53:29,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-17 07:53:29,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 1122 transitions. [2024-11-17 07:53:29,180 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4495192307692308 [2024-11-17 07:53:29,180 INFO L175 Difference]: Start difference. First operand has 128 places, 140 transitions, 683 flow. Second operand 24 states and 1122 transitions. [2024-11-17 07:53:29,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 160 transitions, 1021 flow [2024-11-17 07:53:29,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 149 places, 160 transitions, 1015 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:53:29,257 INFO L231 Difference]: Finished difference. Result has 152 places, 156 transitions, 926 flow [2024-11-17 07:53:29,257 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=104, PETRI_DIFFERENCE_MINUEND_FLOW=668, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=926, PETRI_PLACES=152, PETRI_TRANSITIONS=156} [2024-11-17 07:53:29,258 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 64 predicate places. [2024-11-17 07:53:29,258 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 156 transitions, 926 flow [2024-11-17 07:53:29,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 43.142857142857146) internal successors, (604), 14 states have internal predecessors, (604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:29,259 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:53:29,259 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:53:29,276 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-17 07:53:29,463 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:53:29,464 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 30 more)] === [2024-11-17 07:53:29,464 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:53:29,464 INFO L85 PathProgramCache]: Analyzing trace with hash 2069437435, now seen corresponding path program 1 times [2024-11-17 07:53:29,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:53:29,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689592045] [2024-11-17 07:53:29,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:53:29,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:53:29,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:53:29,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:53:29,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:53:29,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689592045] [2024-11-17 07:53:29,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1689592045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:53:29,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:53:29,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:53:29,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2132252517] [2024-11-17 07:53:29,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:53:29,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:53:29,566 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:53:29,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:53:29,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:53:29,606 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 104 [2024-11-17 07:53:29,606 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 156 transitions, 926 flow. Second operand has 5 states, 5 states have (on average 48.6) internal successors, (243), 5 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:53:29,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:53:29,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 104 [2024-11-17 07:53:29,607 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand