./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 15:07:06,160 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:07:06,220 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 15:07:06,225 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:07:06,227 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:07:06,263 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:07:06,263 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:07:06,264 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:07:06,264 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:07:06,264 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:07:06,265 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 15:07:06,265 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 15:07:06,265 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:07:06,266 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:07:06,267 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:07:06,267 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:07:06,267 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 15:07:06,267 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 15:07:06,268 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:07:06,270 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 15:07:06,270 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:07:06,270 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 15:07:06,270 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 15:07:06,273 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 15:07:06,273 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:07:06,273 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 15:07:06,273 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:07:06,273 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 15:07:06,274 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:07:06,274 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:07:06,274 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:07:06,274 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:07:06,274 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 15:07:06,274 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 15:07:06,274 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:07:06,275 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:07:06,275 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 15:07:06,275 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 15:07:06,275 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:07:06,275 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 15:07:06,275 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 15:07:06,276 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 15:07:06,276 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 15:07:06,276 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 15:07:06,277 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 [2024-11-09 15:07:06,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:07:06,502 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:07:06,504 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:07:06,505 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:07:06,506 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:07:06,506 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2024-11-09 15:07:07,689 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:07:07,949 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:07:07,949 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2024-11-09 15:07:07,969 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19fa1c6a5/0ba47bf4b1a64a81a2cdb7736de41c20/FLAG5bc1f56bf [2024-11-09 15:07:08,280 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19fa1c6a5/0ba47bf4b1a64a81a2cdb7736de41c20 [2024-11-09 15:07:08,282 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:07:08,283 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:07:08,285 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:07:08,285 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:07:08,290 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:07:08,291 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:07:08" (1/1) ... [2024-11-09 15:07:08,291 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d47fc81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:08, skipping insertion in model container [2024-11-09 15:07:08,291 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:07:08" (1/1) ... [2024-11-09 15:07:08,338 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:07:08,639 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-09 15:07:08,641 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-09 15:07:08,642 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-09 15:07:08,642 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-09 15:07:08,669 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:07:08,703 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:07:08,738 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-09 15:07:08,738 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-09 15:07:08,739 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-09 15:07:08,739 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-09 15:07:08,748 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:07:08,797 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:07:08,797 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:08 WrapperNode [2024-11-09 15:07:08,798 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:07:08,798 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:07:08,798 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:07:08,799 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:07:08,803 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:08" (1/1) ... [2024-11-09 15:07:08,822 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:08" (1/1) ... [2024-11-09 15:07:08,845 INFO L138 Inliner]: procedures = 281, calls = 126, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 323 [2024-11-09 15:07:08,845 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:07:08,846 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:07:08,847 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:07:08,848 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:07:08,856 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:08" (1/1) ... [2024-11-09 15:07:08,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:08" (1/1) ... [2024-11-09 15:07:08,860 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:08" (1/1) ... [2024-11-09 15:07:08,882 INFO L175 MemorySlicer]: Split 98 memory accesses to 4 slices as follows [2, 89, 5, 2]. 91 percent of accesses are in the largest equivalence class. The 77 initializations are split as follows [2, 70, 5, 0]. The 12 writes are split as follows [0, 11, 0, 1]. [2024-11-09 15:07:08,882 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:08" (1/1) ... [2024-11-09 15:07:08,882 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:08" (1/1) ... [2024-11-09 15:07:08,893 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:08" (1/1) ... [2024-11-09 15:07:08,896 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:08" (1/1) ... [2024-11-09 15:07:08,897 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:08" (1/1) ... [2024-11-09 15:07:08,899 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:08" (1/1) ... [2024-11-09 15:07:08,906 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:07:08,907 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:07:08,907 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:07:08,907 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:07:08,907 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:08" (1/1) ... [2024-11-09 15:07:08,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:07:08,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:07:08,936 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) [2024-11-09 15:07:08,938 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 [2024-11-09 15:07:08,970 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 15:07:08,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 15:07:08,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 15:07:08,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 15:07:08,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-09 15:07:08,971 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 15:07:08,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-09 15:07:08,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-09 15:07:08,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-09 15:07:08,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-09 15:07:08,972 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 15:07:08,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 15:07:08,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 15:07:08,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 15:07:08,972 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 15:07:08,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 15:07:08,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 15:07:08,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 15:07:08,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 15:07:08,972 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 15:07:08,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 15:07:08,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 15:07:08,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 15:07:08,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 15:07:08,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 15:07:08,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 15:07:08,973 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-09 15:07:08,973 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-09 15:07:08,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 15:07:08,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 15:07:08,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 15:07:08,974 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 15:07:08,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:07:08,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:07:08,975 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 15:07:09,106 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:07:09,107 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:07:09,528 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 15:07:09,528 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:07:09,982 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:07:09,983 INFO L316 CfgBuilder]: Removed 16 assume(true) statements. [2024-11-09 15:07:09,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:07:09 BoogieIcfgContainer [2024-11-09 15:07:09,984 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:07:09,985 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 15:07:09,985 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 15:07:09,988 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 15:07:09,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:07:08" (1/3) ... [2024-11-09 15:07:09,988 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b22f107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:07:09, skipping insertion in model container [2024-11-09 15:07:09,988 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:07:08" (2/3) ... [2024-11-09 15:07:09,989 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b22f107 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:07:09, skipping insertion in model container [2024-11-09 15:07:09,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:07:09" (3/3) ... [2024-11-09 15:07:09,990 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_93-evilcollapse_racefree.i [2024-11-09 15:07:10,004 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 15:07:10,005 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-09 15:07:10,005 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 15:07:10,060 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 15:07:10,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 87 transitions, 181 flow [2024-11-09 15:07:10,120 INFO L124 PetriNetUnfolderBase]: 16/91 cut-off events. [2024-11-09 15:07:10,120 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 15:07:10,123 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 91 events. 16/91 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 272 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 62. Up to 4 conditions per place. [2024-11-09 15:07:10,124 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 87 transitions, 181 flow [2024-11-09 15:07:10,126 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 86 transitions, 179 flow [2024-11-09 15:07:10,134 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:07:10,140 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;@21ecc180, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:07:10,141 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-09 15:07:10,146 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:07:10,146 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-11-09 15:07:10,146 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:07:10,146 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:07:10,147 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-09 15:07:10,148 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-09 15:07:10,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:07:10,152 INFO L85 PathProgramCache]: Analyzing trace with hash 26727985, now seen corresponding path program 1 times [2024-11-09 15:07:10,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:07:10,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647686173] [2024-11-09 15:07:10,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:10,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:07:10,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 15:07:10,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [367049221] [2024-11-09 15:07:10,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:10,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:07:10,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:07:10,321 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) [2024-11-09 15:07:10,322 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 15:07:10,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:10,443 INFO L255 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 15:07:10,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:07:10,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:07:10,475 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:07:10,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:07:10,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647686173] [2024-11-09 15:07:10,476 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 15:07:10,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [367049221] [2024-11-09 15:07:10,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [367049221] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:07:10,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:07:10,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 15:07:10,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265709544] [2024-11-09 15:07:10,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:07:10,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:07:10,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:07:10,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:07:10,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:07:10,516 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 87 [2024-11-09 15:07:10,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 86 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-11-09 15:07:10,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:07:10,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 87 [2024-11-09 15:07:10,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:07:10,747 INFO L124 PetriNetUnfolderBase]: 126/413 cut-off events. [2024-11-09 15:07:10,747 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 15:07:10,748 INFO L83 FinitePrefix]: Finished finitePrefix Result has 687 conditions, 413 events. 126/413 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1887 event pairs, 105 based on Foata normal form. 37/370 useless extension candidates. Maximal degree in co-relation 620. Up to 264 conditions per place. [2024-11-09 15:07:10,750 INFO L140 encePairwiseOnDemand]: 72/87 looper letters, 42 selfloop transitions, 2 changer transitions 0/81 dead transitions. [2024-11-09 15:07:10,751 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 81 transitions, 257 flow [2024-11-09 15:07:10,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:07:10,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:07:10,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 168 transitions. [2024-11-09 15:07:10,760 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6436781609195402 [2024-11-09 15:07:10,761 INFO L175 Difference]: Start difference. First operand has 74 places, 86 transitions, 179 flow. Second operand 3 states and 168 transitions. [2024-11-09 15:07:10,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 81 transitions, 257 flow [2024-11-09 15:07:10,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 81 transitions, 257 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 15:07:10,769 INFO L231 Difference]: Finished difference. Result has 77 places, 77 transitions, 175 flow [2024-11-09 15:07:10,771 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=175, PETRI_PLACES=77, PETRI_TRANSITIONS=77} [2024-11-09 15:07:10,774 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 3 predicate places. [2024-11-09 15:07:10,774 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 77 transitions, 175 flow [2024-11-09 15:07:10,775 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-11-09 15:07:10,775 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:07:10,775 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-09 15:07:10,789 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 15:07:10,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 15:07:10,981 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-09 15:07:10,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:07:10,981 INFO L85 PathProgramCache]: Analyzing trace with hash 26728002, now seen corresponding path program 1 times [2024-11-09 15:07:10,982 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:07:10,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478804868] [2024-11-09 15:07:10,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:10,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:07:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:11,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:07:11,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:07:11,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478804868] [2024-11-09 15:07:11,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478804868] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:07:11,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:07:11,123 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:07:11,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750358813] [2024-11-09 15:07:11,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:07:11,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:07:11,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:07:11,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:07:11,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:07:11,135 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 87 [2024-11-09 15:07:11,136 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 77 transitions, 175 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-11-09 15:07:11,137 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:07:11,137 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 87 [2024-11-09 15:07:11,137 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:07:11,286 INFO L124 PetriNetUnfolderBase]: 126/427 cut-off events. [2024-11-09 15:07:11,286 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-09 15:07:11,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 714 conditions, 427 events. 126/427 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1959 event pairs, 105 based on Foata normal form. 4/351 useless extension candidates. Maximal degree in co-relation 677. Up to 269 conditions per place. [2024-11-09 15:07:11,290 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 40 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2024-11-09 15:07:11,290 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 79 transitions, 263 flow [2024-11-09 15:07:11,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:07:11,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:07:11,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 155 transitions. [2024-11-09 15:07:11,292 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5938697318007663 [2024-11-09 15:07:11,293 INFO L175 Difference]: Start difference. First operand has 77 places, 77 transitions, 175 flow. Second operand 3 states and 155 transitions. [2024-11-09 15:07:11,293 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 79 transitions, 263 flow [2024-11-09 15:07:11,294 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 79 transitions, 261 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:07:11,295 INFO L231 Difference]: Finished difference. Result has 79 places, 78 transitions, 189 flow [2024-11-09 15:07:11,295 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=189, PETRI_PLACES=79, PETRI_TRANSITIONS=78} [2024-11-09 15:07:11,296 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 5 predicate places. [2024-11-09 15:07:11,297 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 78 transitions, 189 flow [2024-11-09 15:07:11,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 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) [2024-11-09 15:07:11,297 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:07:11,297 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 15:07:11,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 15:07:11,298 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-09 15:07:11,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:07:11,298 INFO L85 PathProgramCache]: Analyzing trace with hash -84183153, now seen corresponding path program 1 times [2024-11-09 15:07:11,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:07:11,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488310256] [2024-11-09 15:07:11,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:11,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:07:11,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:11,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:07:11,427 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:07:11,427 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488310256] [2024-11-09 15:07:11,427 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488310256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:07:11,427 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:07:11,427 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:07:11,428 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [525916833] [2024-11-09 15:07:11,428 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:07:11,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:07:11,428 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:07:11,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:07:11,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:07:11,441 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 87 [2024-11-09 15:07:11,443 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 78 transitions, 189 flow. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2024-11-09 15:07:11,443 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:07:11,443 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 87 [2024-11-09 15:07:11,443 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:07:11,659 INFO L124 PetriNetUnfolderBase]: 126/423 cut-off events. [2024-11-09 15:07:11,660 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-09 15:07:11,661 INFO L83 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 423 events. 126/423 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1945 event pairs, 105 based on Foata normal form. 4/351 useless extension candidates. Maximal degree in co-relation 664. Up to 273 conditions per place. [2024-11-09 15:07:11,662 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 41 selfloop transitions, 3 changer transitions 0/79 dead transitions. [2024-11-09 15:07:11,662 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 79 transitions, 279 flow [2024-11-09 15:07:11,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:07:11,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:07:11,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 185 transitions. [2024-11-09 15:07:11,664 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5316091954022989 [2024-11-09 15:07:11,664 INFO L175 Difference]: Start difference. First operand has 79 places, 78 transitions, 189 flow. Second operand 4 states and 185 transitions. [2024-11-09 15:07:11,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 79 transitions, 279 flow [2024-11-09 15:07:11,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 79 transitions, 277 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:07:11,666 INFO L231 Difference]: Finished difference. Result has 83 places, 79 transitions, 205 flow [2024-11-09 15:07:11,667 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=205, PETRI_PLACES=83, PETRI_TRANSITIONS=79} [2024-11-09 15:07:11,667 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 9 predicate places. [2024-11-09 15:07:11,667 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 79 transitions, 205 flow [2024-11-09 15:07:11,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 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) [2024-11-09 15:07:11,668 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:07:11,668 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:07:11,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 15:07:11,668 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-09 15:07:11,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:07:11,668 INFO L85 PathProgramCache]: Analyzing trace with hash 361472709, now seen corresponding path program 1 times [2024-11-09 15:07:11,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:07:11,669 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132883817] [2024-11-09 15:07:11,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:11,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:07:11,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:11,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:07:11,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:07:11,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132883817] [2024-11-09 15:07:11,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132883817] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:07:11,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055856] [2024-11-09 15:07:11,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:11,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:07:11,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:07:11,803 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) [2024-11-09 15:07:11,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 15:07:11,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:11,923 INFO L255 TraceCheckSpWp]: Trace formula consists of 351 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:07:11,924 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:07:11,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:07:11,952 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:07:11,978 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:07:11,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055856] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:07:11,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:07:11,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-09 15:07:11,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155891953] [2024-11-09 15:07:11,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:07:11,979 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 15:07:11,979 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:07:11,980 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 15:07:11,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 15:07:12,013 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 87 [2024-11-09 15:07:12,014 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 79 transitions, 205 flow. Second operand has 10 states, 10 states have (on average 35.5) internal successors, (355), 10 states have internal predecessors, (355), 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) [2024-11-09 15:07:12,014 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:07:12,014 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 87 [2024-11-09 15:07:12,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:07:12,359 INFO L124 PetriNetUnfolderBase]: 126/439 cut-off events. [2024-11-09 15:07:12,360 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-11-09 15:07:12,361 INFO L83 FinitePrefix]: Finished finitePrefix Result has 784 conditions, 439 events. 126/439 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2045 event pairs, 105 based on Foata normal form. 6/369 useless extension candidates. Maximal degree in co-relation 683. Up to 263 conditions per place. [2024-11-09 15:07:12,362 INFO L140 encePairwiseOnDemand]: 80/87 looper letters, 44 selfloop transitions, 9 changer transitions 0/87 dead transitions. [2024-11-09 15:07:12,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 87 transitions, 341 flow [2024-11-09 15:07:12,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 15:07:12,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-09 15:07:12,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 361 transitions. [2024-11-09 15:07:12,364 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4610472541507024 [2024-11-09 15:07:12,364 INFO L175 Difference]: Start difference. First operand has 83 places, 79 transitions, 205 flow. Second operand 9 states and 361 transitions. [2024-11-09 15:07:12,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 87 transitions, 341 flow [2024-11-09 15:07:12,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 87 transitions, 337 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:07:12,366 INFO L231 Difference]: Finished difference. Result has 93 places, 83 transitions, 255 flow [2024-11-09 15:07:12,367 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=255, PETRI_PLACES=93, PETRI_TRANSITIONS=83} [2024-11-09 15:07:12,367 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 19 predicate places. [2024-11-09 15:07:12,367 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 83 transitions, 255 flow [2024-11-09 15:07:12,368 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 35.5) internal successors, (355), 10 states have internal predecessors, (355), 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) [2024-11-09 15:07:12,368 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:07:12,368 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-09 15:07:12,385 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 15:07:12,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-09 15:07:12,571 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-09 15:07:12,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:07:12,571 INFO L85 PathProgramCache]: Analyzing trace with hash -517066926, now seen corresponding path program 1 times [2024-11-09 15:07:12,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:07:12,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052032585] [2024-11-09 15:07:12,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:12,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:07:12,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:12,783 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:07:12,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:07:12,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052032585] [2024-11-09 15:07:12,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052032585] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:07:12,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1861729561] [2024-11-09 15:07:12,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:12,784 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:07:12,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:07:12,785 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) [2024-11-09 15:07:12,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 15:07:12,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:12,948 INFO L255 TraceCheckSpWp]: Trace formula consists of 437 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:07:12,949 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:07:12,972 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:07:12,972 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:07:12,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1861729561] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:07:12,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:07:12,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-09 15:07:12,973 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198298577] [2024-11-09 15:07:12,973 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:07:12,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:07:12,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:07:12,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:07:12,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:07:13,020 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 87 [2024-11-09 15:07:13,021 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 83 transitions, 255 flow. Second operand has 6 states, 6 states have (on average 36.0) internal successors, (216), 6 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:07:13,021 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:07:13,021 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 87 [2024-11-09 15:07:13,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:07:13,281 INFO L124 PetriNetUnfolderBase]: 126/435 cut-off events. [2024-11-09 15:07:13,282 INFO L125 PetriNetUnfolderBase]: For 95/95 co-relation queries the response was YES. [2024-11-09 15:07:13,283 INFO L83 FinitePrefix]: Finished finitePrefix Result has 801 conditions, 435 events. 126/435 cut-off events. For 95/95 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2004 event pairs, 105 based on Foata normal form. 4/363 useless extension candidates. Maximal degree in co-relation 700. Up to 261 conditions per place. [2024-11-09 15:07:13,285 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 37 selfloop transitions, 8 changer transitions 0/81 dead transitions. [2024-11-09 15:07:13,285 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 81 transitions, 331 flow [2024-11-09 15:07:13,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:07:13,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:07:13,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 253 transitions. [2024-11-09 15:07:13,286 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4846743295019157 [2024-11-09 15:07:13,287 INFO L175 Difference]: Start difference. First operand has 93 places, 83 transitions, 255 flow. Second operand 6 states and 253 transitions. [2024-11-09 15:07:13,287 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 81 transitions, 331 flow [2024-11-09 15:07:13,289 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 81 transitions, 323 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-09 15:07:13,290 INFO L231 Difference]: Finished difference. Result has 93 places, 81 transitions, 249 flow [2024-11-09 15:07:13,291 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=249, PETRI_PLACES=93, PETRI_TRANSITIONS=81} [2024-11-09 15:07:13,291 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 19 predicate places. [2024-11-09 15:07:13,291 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 81 transitions, 249 flow [2024-11-09 15:07:13,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.0) internal successors, (216), 6 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:07:13,291 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:07:13,292 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1] [2024-11-09 15:07:13,308 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 15:07:13,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:07:13,494 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-09 15:07:13,494 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:07:13,494 INFO L85 PathProgramCache]: Analyzing trace with hash 486823915, now seen corresponding path program 1 times [2024-11-09 15:07:13,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:07:13,495 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1856982356] [2024-11-09 15:07:13,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:13,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:07:13,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:13,597 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-09 15:07:13,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:07:13,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1856982356] [2024-11-09 15:07:13,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1856982356] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:07:13,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:07:13,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:07:13,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65366508] [2024-11-09 15:07:13,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:07:13,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:07:13,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:07:13,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:07:13,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:07:13,610 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 87 [2024-11-09 15:07:13,611 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 81 transitions, 249 flow. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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) [2024-11-09 15:07:13,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:07:13,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 87 [2024-11-09 15:07:13,611 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:07:13,717 INFO L124 PetriNetUnfolderBase]: 126/433 cut-off events. [2024-11-09 15:07:13,717 INFO L125 PetriNetUnfolderBase]: For 105/105 co-relation queries the response was YES. [2024-11-09 15:07:13,718 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 433 events. 126/433 cut-off events. For 105/105 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2005 event pairs, 105 based on Foata normal form. 2/359 useless extension candidates. Maximal degree in co-relation 706. Up to 267 conditions per place. [2024-11-09 15:07:13,719 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 36 selfloop transitions, 9 changer transitions 0/81 dead transitions. [2024-11-09 15:07:13,719 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 81 transitions, 337 flow [2024-11-09 15:07:13,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:07:13,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:07:13,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 184 transitions. [2024-11-09 15:07:13,720 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5287356321839081 [2024-11-09 15:07:13,720 INFO L175 Difference]: Start difference. First operand has 93 places, 81 transitions, 249 flow. Second operand 4 states and 184 transitions. [2024-11-09 15:07:13,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 81 transitions, 337 flow [2024-11-09 15:07:13,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 81 transitions, 321 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-11-09 15:07:13,725 INFO L231 Difference]: Finished difference. Result has 90 places, 81 transitions, 257 flow [2024-11-09 15:07:13,725 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=257, PETRI_PLACES=90, PETRI_TRANSITIONS=81} [2024-11-09 15:07:13,726 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 16 predicate places. [2024-11-09 15:07:13,726 INFO L471 AbstractCegarLoop]: Abstraction has has 90 places, 81 transitions, 257 flow [2024-11-09 15:07:13,726 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 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) [2024-11-09 15:07:13,726 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:07:13,726 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1] [2024-11-09 15:07:13,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 15:07:13,726 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-09 15:07:13,727 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:07:13,727 INFO L85 PathProgramCache]: Analyzing trace with hash -313625371, now seen corresponding path program 2 times [2024-11-09 15:07:13,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:07:13,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170418976] [2024-11-09 15:07:13,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:13,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:07:13,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:13,852 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 15:07:13,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:07:13,853 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170418976] [2024-11-09 15:07:13,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170418976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:07:13,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:07:13,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:07:13,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422935125] [2024-11-09 15:07:13,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:07:13,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:07:13,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:07:13,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:07:13,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:07:13,862 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 87 [2024-11-09 15:07:13,862 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 81 transitions, 257 flow. Second operand has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 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) [2024-11-09 15:07:13,862 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:07:13,862 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 87 [2024-11-09 15:07:13,862 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:07:14,006 INFO L124 PetriNetUnfolderBase]: 126/431 cut-off events. [2024-11-09 15:07:14,007 INFO L125 PetriNetUnfolderBase]: For 133/133 co-relation queries the response was YES. [2024-11-09 15:07:14,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 813 conditions, 431 events. 126/431 cut-off events. For 133/133 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1984 event pairs, 105 based on Foata normal form. 2/359 useless extension candidates. Maximal degree in co-relation 688. Up to 272 conditions per place. [2024-11-09 15:07:14,011 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 51 selfloop transitions, 3 changer transitions 0/89 dead transitions. [2024-11-09 15:07:14,011 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 89 transitions, 437 flow [2024-11-09 15:07:14,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:07:14,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:07:14,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 188 transitions. [2024-11-09 15:07:14,012 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5402298850574713 [2024-11-09 15:07:14,012 INFO L175 Difference]: Start difference. First operand has 90 places, 81 transitions, 257 flow. Second operand 4 states and 188 transitions. [2024-11-09 15:07:14,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 89 transitions, 437 flow [2024-11-09 15:07:14,013 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 89 transitions, 413 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-09 15:07:14,014 INFO L231 Difference]: Finished difference. Result has 93 places, 82 transitions, 268 flow [2024-11-09 15:07:14,014 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=243, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=268, PETRI_PLACES=93, PETRI_TRANSITIONS=82} [2024-11-09 15:07:14,015 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 19 predicate places. [2024-11-09 15:07:14,015 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 82 transitions, 268 flow [2024-11-09 15:07:14,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.5) internal successors, (146), 4 states have internal predecessors, (146), 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) [2024-11-09 15:07:14,016 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:07:14,016 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:07:14,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 15:07:14,016 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-09 15:07:14,016 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:07:14,016 INFO L85 PathProgramCache]: Analyzing trace with hash 117961882, now seen corresponding path program 1 times [2024-11-09 15:07:14,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:07:14,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334356624] [2024-11-09 15:07:14,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:14,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:07:14,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:14,152 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 15:07:14,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:07:14,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334356624] [2024-11-09 15:07:14,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334356624] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:07:14,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1914728363] [2024-11-09 15:07:14,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:14,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:07:14,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:07:14,154 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:07:14,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 15:07:14,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:14,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 15:07:14,358 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:07:14,420 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:07:14,421 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:07:14,509 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:07:14,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1914728363] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:07:14,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:07:14,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 19 [2024-11-09 15:07:14,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707604717] [2024-11-09 15:07:14,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:07:14,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 15:07:14,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:07:14,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 15:07:14,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-11-09 15:07:14,589 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 87 [2024-11-09 15:07:14,590 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 82 transitions, 268 flow. Second operand has 19 states, 19 states have (on average 33.8421052631579) internal successors, (643), 19 states have internal predecessors, (643), 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) [2024-11-09 15:07:14,590 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:07:14,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 87 [2024-11-09 15:07:14,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:07:15,490 INFO L124 PetriNetUnfolderBase]: 131/533 cut-off events. [2024-11-09 15:07:15,490 INFO L125 PetriNetUnfolderBase]: For 380/380 co-relation queries the response was YES. [2024-11-09 15:07:15,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1172 conditions, 533 events. 131/533 cut-off events. For 380/380 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2169 event pairs, 105 based on Foata normal form. 13/472 useless extension candidates. Maximal degree in co-relation 1019. Up to 262 conditions per place. [2024-11-09 15:07:15,493 INFO L140 encePairwiseOnDemand]: 78/87 looper letters, 80 selfloop transitions, 55 changer transitions 0/167 dead transitions. [2024-11-09 15:07:15,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 167 transitions, 1141 flow [2024-11-09 15:07:15,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-09 15:07:15,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2024-11-09 15:07:15,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 1556 transitions. [2024-11-09 15:07:15,496 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.406478578892372 [2024-11-09 15:07:15,496 INFO L175 Difference]: Start difference. First operand has 93 places, 82 transitions, 268 flow. Second operand 44 states and 1556 transitions. [2024-11-09 15:07:15,496 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 167 transitions, 1141 flow [2024-11-09 15:07:15,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 167 transitions, 1137 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:07:15,500 INFO L231 Difference]: Finished difference. Result has 147 places, 130 transitions, 823 flow [2024-11-09 15:07:15,500 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=823, PETRI_PLACES=147, PETRI_TRANSITIONS=130} [2024-11-09 15:07:15,500 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 73 predicate places. [2024-11-09 15:07:15,501 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 130 transitions, 823 flow [2024-11-09 15:07:15,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 33.8421052631579) internal successors, (643), 19 states have internal predecessors, (643), 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) [2024-11-09 15:07:15,501 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:07:15,501 INFO L204 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1] [2024-11-09 15:07:15,515 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-09 15:07:15,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:07:15,702 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-09 15:07:15,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:07:15,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1624490313, now seen corresponding path program 1 times [2024-11-09 15:07:15,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:07:15,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260021418] [2024-11-09 15:07:15,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:15,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:07:15,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:16,267 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 15:07:16,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:07:16,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260021418] [2024-11-09 15:07:16,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260021418] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:07:16,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1959098517] [2024-11-09 15:07:16,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:16,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:07:16,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:07:16,269 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:07:16,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 15:07:16,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:16,607 INFO L255 TraceCheckSpWp]: Trace formula consists of 1034 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 15:07:16,611 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:07:16,683 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 15:07:16,683 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:07:16,890 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 15:07:16,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1959098517] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:07:16,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:07:16,891 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-11-09 15:07:16,891 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570752596] [2024-11-09 15:07:16,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:07:16,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-09 15:07:16,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:07:16,892 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-09 15:07:16,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 15:07:17,029 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 87 [2024-11-09 15:07:17,031 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 130 transitions, 823 flow. Second operand has 34 states, 34 states have (on average 35.6764705882353) internal successors, (1213), 34 states have internal predecessors, (1213), 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) [2024-11-09 15:07:17,031 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:07:17,031 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 87 [2024-11-09 15:07:17,031 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:07:18,214 INFO L124 PetriNetUnfolderBase]: 127/685 cut-off events. [2024-11-09 15:07:18,215 INFO L125 PetriNetUnfolderBase]: For 2683/2683 co-relation queries the response was YES. [2024-11-09 15:07:18,216 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2063 conditions, 685 events. 127/685 cut-off events. For 2683/2683 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2244 event pairs, 105 based on Foata normal form. 24/635 useless extension candidates. Maximal degree in co-relation 1689. Up to 266 conditions per place. [2024-11-09 15:07:18,218 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 113 selfloop transitions, 93 changer transitions 0/240 dead transitions. [2024-11-09 15:07:18,218 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 240 transitions, 2467 flow [2024-11-09 15:07:18,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-09 15:07:18,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-11-09 15:07:18,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1171 transitions. [2024-11-09 15:07:18,220 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43418613274008155 [2024-11-09 15:07:18,221 INFO L175 Difference]: Start difference. First operand has 147 places, 130 transitions, 823 flow. Second operand 31 states and 1171 transitions. [2024-11-09 15:07:18,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 240 transitions, 2467 flow [2024-11-09 15:07:18,228 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 240 transitions, 2359 flow, removed 43 selfloop flow, removed 5 redundant places. [2024-11-09 15:07:18,230 INFO L231 Difference]: Finished difference. Result has 181 places, 181 transitions, 1560 flow [2024-11-09 15:07:18,230 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=763, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=1560, PETRI_PLACES=181, PETRI_TRANSITIONS=181} [2024-11-09 15:07:18,231 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 107 predicate places. [2024-11-09 15:07:18,231 INFO L471 AbstractCegarLoop]: Abstraction has has 181 places, 181 transitions, 1560 flow [2024-11-09 15:07:18,232 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 35.6764705882353) internal successors, (1213), 34 states have internal predecessors, (1213), 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) [2024-11-09 15:07:18,232 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:07:18,232 INFO L204 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1] [2024-11-09 15:07:18,250 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 15:07:18,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:07:18,432 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-09 15:07:18,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:07:18,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1556686647, now seen corresponding path program 2 times [2024-11-09 15:07:18,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:07:18,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678109353] [2024-11-09 15:07:18,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:18,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:07:18,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:19,925 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 15:07:19,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:07:19,925 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678109353] [2024-11-09 15:07:19,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678109353] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:07:19,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053075734] [2024-11-09 15:07:19,926 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:07:19,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:07:19,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:07:19,927 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:07:19,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 15:07:20,395 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 15:07:20,396 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:07:20,404 INFO L255 TraceCheckSpWp]: Trace formula consists of 1778 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-09 15:07:20,407 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:07:20,497 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 15:07:20,497 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:07:21,105 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 15:07:21,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053075734] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:07:21,105 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:07:21,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-11-09 15:07:21,106 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [12837687] [2024-11-09 15:07:21,106 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:07:21,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-11-09 15:07:21,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:07:21,107 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-11-09 15:07:21,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-11-09 15:07:21,290 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 87 [2024-11-09 15:07:21,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 181 transitions, 1560 flow. Second operand has 63 states, 63 states have (on average 35.61904761904762) internal successors, (2244), 63 states have internal predecessors, (2244), 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) [2024-11-09 15:07:21,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:07:21,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 87 [2024-11-09 15:07:21,292 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:07:23,843 INFO L124 PetriNetUnfolderBase]: 127/970 cut-off events. [2024-11-09 15:07:23,844 INFO L125 PetriNetUnfolderBase]: For 9666/9666 co-relation queries the response was YES. [2024-11-09 15:07:23,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3707 conditions, 970 events. 127/970 cut-off events. For 9666/9666 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2392 event pairs, 105 based on Foata normal form. 45/941 useless extension candidates. Maximal degree in co-relation 3042. Up to 266 conditions per place. [2024-11-09 15:07:23,848 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 203 selfloop transitions, 183 changer transitions 0/420 dead transitions. [2024-11-09 15:07:23,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 420 transitions, 5406 flow [2024-11-09 15:07:23,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-09 15:07:23,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2024-11-09 15:07:23,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 2273 transitions. [2024-11-09 15:07:23,852 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42830224232146225 [2024-11-09 15:07:23,852 INFO L175 Difference]: Start difference. First operand has 181 places, 181 transitions, 1560 flow. Second operand 61 states and 2273 transitions. [2024-11-09 15:07:23,852 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 420 transitions, 5406 flow [2024-11-09 15:07:23,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 420 transitions, 5334 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-11-09 15:07:23,875 INFO L231 Difference]: Finished difference. Result has 245 places, 274 transitions, 3230 flow [2024-11-09 15:07:23,876 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=1488, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=181, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=3230, PETRI_PLACES=245, PETRI_TRANSITIONS=274} [2024-11-09 15:07:23,876 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 171 predicate places. [2024-11-09 15:07:23,877 INFO L471 AbstractCegarLoop]: Abstraction has has 245 places, 274 transitions, 3230 flow [2024-11-09 15:07:23,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 35.61904761904762) internal successors, (2244), 63 states have internal predecessors, (2244), 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) [2024-11-09 15:07:23,878 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:07:23,878 INFO L204 CegarLoopForPetriNet]: trace histogram [32, 31, 31, 31, 31, 2, 1, 1, 1, 1, 1] [2024-11-09 15:07:23,896 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 15:07:24,079 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:07:24,079 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-09 15:07:24,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:07:24,080 INFO L85 PathProgramCache]: Analyzing trace with hash 497022124, now seen corresponding path program 3 times [2024-11-09 15:07:24,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:07:24,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368087826] [2024-11-09 15:07:24,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:24,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:08:29,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 15:08:29,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [439913280] [2024-11-09 15:08:29,791 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 15:08:29,791 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:08:29,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:08:29,793 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:08:29,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 15:08:30,375 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-09 15:08:30,375 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:08:30,378 INFO L255 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 15:08:30,384 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:08:30,557 INFO L134 CoverageAnalysis]: Checked inductivity of 2420 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 2205 trivial. 0 not checked. [2024-11-09 15:08:30,557 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:08:30,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:08:30,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368087826] [2024-11-09 15:08:30,558 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 15:08:30,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439913280] [2024-11-09 15:08:30,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439913280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:08:30,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:08:30,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-09 15:08:30,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074620887] [2024-11-09 15:08:30,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:08:30,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 15:08:30,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:08:30,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 15:08:30,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-11-09 15:08:30,585 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 87 [2024-11-09 15:08:30,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 274 transitions, 3230 flow. Second operand has 9 states, 9 states have (on average 33.44444444444444) internal successors, (301), 9 states have internal predecessors, (301), 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) [2024-11-09 15:08:30,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:08:30,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 87 [2024-11-09 15:08:30,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:08:31,128 INFO L124 PetriNetUnfolderBase]: 127/910 cut-off events. [2024-11-09 15:08:31,128 INFO L125 PetriNetUnfolderBase]: For 7457/7457 co-relation queries the response was YES. [2024-11-09 15:08:31,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3780 conditions, 910 events. 127/910 cut-off events. For 7457/7457 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2134 event pairs, 105 based on Foata normal form. 60/896 useless extension candidates. Maximal degree in co-relation 3099. Up to 256 conditions per place. [2024-11-09 15:08:31,132 INFO L140 encePairwiseOnDemand]: 77/87 looper letters, 106 selfloop transitions, 137 changer transitions 0/275 dead transitions. [2024-11-09 15:08:31,132 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 253 places, 275 transitions, 3730 flow [2024-11-09 15:08:31,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-09 15:08:31,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2024-11-09 15:08:31,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 403 transitions. [2024-11-09 15:08:31,133 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4211076280041797 [2024-11-09 15:08:31,133 INFO L175 Difference]: Start difference. First operand has 245 places, 274 transitions, 3230 flow. Second operand 11 states and 403 transitions. [2024-11-09 15:08:31,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 253 places, 275 transitions, 3730 flow [2024-11-09 15:08:31,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 225 places, 275 transitions, 3532 flow, removed 15 selfloop flow, removed 28 redundant places. [2024-11-09 15:08:31,173 INFO L231 Difference]: Finished difference. Result has 226 places, 274 transitions, 3389 flow [2024-11-09 15:08:31,173 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=3022, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=135, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=3389, PETRI_PLACES=226, PETRI_TRANSITIONS=274} [2024-11-09 15:08:31,174 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 152 predicate places. [2024-11-09 15:08:31,174 INFO L471 AbstractCegarLoop]: Abstraction has has 226 places, 274 transitions, 3389 flow [2024-11-09 15:08:31,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 33.44444444444444) internal successors, (301), 9 states have internal predecessors, (301), 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) [2024-11-09 15:08:31,174 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:08:31,174 INFO L204 CegarLoopForPetriNet]: trace histogram [32, 32, 31, 31, 31, 2, 1, 1, 1, 1, 1] [2024-11-09 15:08:31,188 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-09 15:08:31,374 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:08:31,375 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-09 15:08:31,375 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:08:31,375 INFO L85 PathProgramCache]: Analyzing trace with hash -1772182496, now seen corresponding path program 1 times [2024-11-09 15:08:31,375 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:08:31,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806693800] [2024-11-09 15:08:31,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:08:31,376 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms