./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/reorder_5.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/reorder_5.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 0517a9ebb69eeca4ecbb6ac063832eb703719698fb2ee670ca348e2c511f9dfd --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 23:46:05,231 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 23:46:05,309 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-11 23:46:05,314 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 23:46:05,316 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 23:46:05,361 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 23:46:05,362 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 23:46:05,362 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 23:46:05,363 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 23:46:05,363 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 23:46:05,363 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 23:46:05,364 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 23:46:05,364 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 23:46:05,365 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 23:46:05,365 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 23:46:05,367 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 23:46:05,367 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 23:46:05,368 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 23:46:05,368 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 23:46:05,368 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 23:46:05,368 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 23:46:05,373 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 23:46:05,373 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 23:46:05,373 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 23:46:05,373 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 23:46:05,374 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 23:46:05,374 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 23:46:05,374 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 23:46:05,374 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 23:46:05,375 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 23:46:05,375 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 23:46:05,375 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 23:46:05,375 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 23:46:05,375 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 23:46:05,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 23:46:05,376 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 23:46:05,376 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 23:46:05,376 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 23:46:05,377 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 23:46:05,377 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 23:46:05,377 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 23:46:05,378 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 23:46:05,378 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 23:46:05,379 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 23:46:05,379 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0517a9ebb69eeca4ecbb6ac063832eb703719698fb2ee670ca348e2c511f9dfd [2024-10-11 23:46:05,632 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 23:46:05,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 23:46:05,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 23:46:05,663 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 23:46:05,663 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 23:46:05,664 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/reorder_5.i [2024-10-11 23:46:07,109 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 23:46:07,398 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 23:46:07,399 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/reorder_5.i [2024-10-11 23:46:07,426 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/1500c0e75/9db5446755074c7ea0705f9372813ee6/FLAGf897b29ee [2024-10-11 23:46:07,439 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/1500c0e75/9db5446755074c7ea0705f9372813ee6 [2024-10-11 23:46:07,441 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 23:46:07,443 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 23:46:07,444 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 23:46:07,444 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 23:46:07,450 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 23:46:07,451 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:46:07" (1/1) ... [2024-10-11 23:46:07,452 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58431a79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:46:07, skipping insertion in model container [2024-10-11 23:46:07,452 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:46:07" (1/1) ... [2024-10-11 23:46:07,512 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 23:46:08,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 23:46:08,131 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 23:46:08,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 23:46:08,270 INFO L204 MainTranslator]: Completed translation [2024-10-11 23:46:08,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:46:08 WrapperNode [2024-10-11 23:46:08,274 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 23:46:08,275 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 23:46:08,275 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 23:46:08,275 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 23:46:08,283 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:46:08" (1/1) ... [2024-10-11 23:46:08,302 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:46:08" (1/1) ... [2024-10-11 23:46:08,330 INFO L138 Inliner]: procedures = 371, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 145 [2024-10-11 23:46:08,331 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 23:46:08,332 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 23:46:08,332 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 23:46:08,332 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 23:46:08,342 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:46:08" (1/1) ... [2024-10-11 23:46:08,342 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:46:08" (1/1) ... [2024-10-11 23:46:08,345 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:46:08" (1/1) ... [2024-10-11 23:46:08,360 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-10-11 23:46:08,361 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:46:08" (1/1) ... [2024-10-11 23:46:08,361 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:46:08" (1/1) ... [2024-10-11 23:46:08,372 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:46:08" (1/1) ... [2024-10-11 23:46:08,375 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:46:08" (1/1) ... [2024-10-11 23:46:08,377 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:46:08" (1/1) ... [2024-10-11 23:46:08,379 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:46:08" (1/1) ... [2024-10-11 23:46:08,382 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 23:46:08,383 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 23:46:08,383 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 23:46:08,383 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 23:46:08,384 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:46:08" (1/1) ... [2024-10-11 23:46:08,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 23:46:08,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:46:08,416 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 23:46:08,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 23:46:08,453 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-11 23:46:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 23:46:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 23:46:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-11 23:46:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 23:46:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 23:46:08,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 23:46:08,455 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-10-11 23:46:08,455 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-10-11 23:46:08,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 23:46:08,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 23:46:08,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 23:46:08,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 23:46:08,455 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-10-11 23:46:08,456 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-10-11 23:46:08,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 23:46:08,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 23:46:08,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 23:46:08,456 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 23:46:08,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 23:46:08,458 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-11 23:46:08,607 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 23:46:08,610 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 23:46:08,826 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 23:46:08,826 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 23:46:09,039 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 23:46:09,039 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-11 23:46:09,039 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:46:09 BoogieIcfgContainer [2024-10-11 23:46:09,040 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 23:46:09,045 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 23:46:09,045 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 23:46:09,048 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 23:46:09,052 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 11:46:07" (1/3) ... [2024-10-11 23:46:09,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370f54ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:46:09, skipping insertion in model container [2024-10-11 23:46:09,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:46:08" (2/3) ... [2024-10-11 23:46:09,053 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@370f54ca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:46:09, skipping insertion in model container [2024-10-11 23:46:09,057 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:46:09" (3/3) ... [2024-10-11 23:46:09,059 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_5.i [2024-10-11 23:46:09,094 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 23:46:09,095 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-10-11 23:46:09,095 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 23:46:09,145 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-11 23:46:09,178 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 46 places, 45 transitions, 110 flow [2024-10-11 23:46:09,229 INFO L124 PetriNetUnfolderBase]: 8/100 cut-off events. [2024-10-11 23:46:09,230 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-10-11 23:46:09,234 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 100 events. 8/100 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 370 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 50. Up to 7 conditions per place. [2024-10-11 23:46:09,234 INFO L82 GeneralOperation]: Start removeDead. Operand has 46 places, 45 transitions, 110 flow [2024-10-11 23:46:09,238 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 44 transitions, 108 flow [2024-10-11 23:46:09,246 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 23:46:09,252 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;@560d351c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 23:46:09,253 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-10-11 23:46:09,258 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 23:46:09,258 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-10-11 23:46:09,259 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 23:46:09,259 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:46:09,260 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-11 23:46:09,260 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 23:46:09,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:46:09,266 INFO L85 PathProgramCache]: Analyzing trace with hash 387490000, now seen corresponding path program 1 times [2024-10-11 23:46:09,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:46:09,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757033852] [2024-10-11 23:46:09,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:09,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:46:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:46:09,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:09,657 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:46:09,657 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757033852] [2024-10-11 23:46:09,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1757033852] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:46:09,658 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:46:09,659 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:46:09,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773989132] [2024-10-11 23:46:09,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:46:09,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:46:09,676 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:46:09,699 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:46:09,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:46:09,709 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 45 [2024-10-11 23:46:09,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 44 transitions, 108 flow. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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) [2024-10-11 23:46:09,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:46:09,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 45 [2024-10-11 23:46:09,713 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:46:09,900 INFO L124 PetriNetUnfolderBase]: 73/269 cut-off events. [2024-10-11 23:46:09,900 INFO L125 PetriNetUnfolderBase]: For 16/16 co-relation queries the response was YES. [2024-10-11 23:46:09,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 490 conditions, 269 events. 73/269 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1499 event pairs, 41 based on Foata normal form. 2/224 useless extension candidates. Maximal degree in co-relation 279. Up to 126 conditions per place. [2024-10-11 23:46:09,908 INFO L140 encePairwiseOnDemand]: 34/45 looper letters, 31 selfloop transitions, 9 changer transitions 2/60 dead transitions. [2024-10-11 23:46:09,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 60 transitions, 236 flow [2024-10-11 23:46:09,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:46:09,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:46:09,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 116 transitions. [2024-10-11 23:46:09,921 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6444444444444445 [2024-10-11 23:46:09,923 INFO L175 Difference]: Start difference. First operand has 45 places, 44 transitions, 108 flow. Second operand 4 states and 116 transitions. [2024-10-11 23:46:09,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 60 transitions, 236 flow [2024-10-11 23:46:09,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 60 transitions, 236 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 23:46:09,930 INFO L231 Difference]: Finished difference. Result has 47 places, 45 transitions, 142 flow [2024-10-11 23:46:09,933 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=142, PETRI_PLACES=47, PETRI_TRANSITIONS=45} [2024-10-11 23:46:09,937 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 2 predicate places. [2024-10-11 23:46:09,938 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 45 transitions, 142 flow [2024-10-11 23:46:09,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 4 states have internal predecessors, (77), 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) [2024-10-11 23:46:09,939 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:46:09,939 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 23:46:09,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 23:46:09,940 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 23:46:09,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:46:09,942 INFO L85 PathProgramCache]: Analyzing trace with hash -873260107, now seen corresponding path program 1 times [2024-10-11 23:46:09,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:46:09,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451639601] [2024-10-11 23:46:09,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:09,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:46:09,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:46:10,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:10,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:46:10,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451639601] [2024-10-11 23:46:10,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [451639601] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:46:10,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:46:10,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 23:46:10,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954347486] [2024-10-11 23:46:10,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:46:10,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:46:10,048 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:46:10,048 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:46:10,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:46:10,056 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 45 [2024-10-11 23:46:10,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 47 places, 45 transitions, 142 flow. Second operand has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2024-10-11 23:46:10,058 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:46:10,058 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 45 [2024-10-11 23:46:10,058 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:46:10,223 INFO L124 PetriNetUnfolderBase]: 71/252 cut-off events. [2024-10-11 23:46:10,223 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2024-10-11 23:46:10,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 533 conditions, 252 events. 71/252 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1385 event pairs, 21 based on Foata normal form. 12/251 useless extension candidates. Maximal degree in co-relation 305. Up to 118 conditions per place. [2024-10-11 23:46:10,226 INFO L140 encePairwiseOnDemand]: 34/45 looper letters, 32 selfloop transitions, 9 changer transitions 0/57 dead transitions. [2024-10-11 23:46:10,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 57 transitions, 260 flow [2024-10-11 23:46:10,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:46:10,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:46:10,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 115 transitions. [2024-10-11 23:46:10,230 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6388888888888888 [2024-10-11 23:46:10,231 INFO L175 Difference]: Start difference. First operand has 47 places, 45 transitions, 142 flow. Second operand 4 states and 115 transitions. [2024-10-11 23:46:10,231 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 57 transitions, 260 flow [2024-10-11 23:46:10,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 57 transitions, 258 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 23:46:10,236 INFO L231 Difference]: Finished difference. Result has 47 places, 43 transitions, 154 flow [2024-10-11 23:46:10,237 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=45, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=154, PETRI_PLACES=47, PETRI_TRANSITIONS=43} [2024-10-11 23:46:10,238 INFO L277 CegarLoopForPetriNet]: 45 programPoint places, 2 predicate places. [2024-10-11 23:46:10,238 INFO L471 AbstractCegarLoop]: Abstraction has has 47 places, 43 transitions, 154 flow [2024-10-11 23:46:10,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.5) internal successors, (78), 4 states have internal predecessors, (78), 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) [2024-10-11 23:46:10,238 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:46:10,239 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-10-11 23:46:10,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 23:46:10,239 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 23:46:10,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:46:10,240 INFO L85 PathProgramCache]: Analyzing trace with hash -1157129198, now seen corresponding path program 1 times [2024-10-11 23:46:10,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:46:10,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065109390] [2024-10-11 23:46:10,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:10,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:46:10,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 23:46:10,301 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 23:46:10,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 23:46:10,359 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 23:46:10,360 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 23:46:10,361 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-10-11 23:46:10,364 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-10-11 23:46:10,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-10-11 23:46:10,365 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-10-11 23:46:10,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-10-11 23:46:10,366 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-10-11 23:46:10,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-10-11 23:46:10,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-10-11 23:46:10,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-10-11 23:46:10,367 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 10 remaining) [2024-10-11 23:46:10,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 23:46:10,368 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-10-11 23:46:10,372 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 23:46:10,372 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-11 23:46:10,407 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-10-11 23:46:10,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 59 transitions, 162 flow [2024-10-11 23:46:10,471 INFO L124 PetriNetUnfolderBase]: 57/387 cut-off events. [2024-10-11 23:46:10,471 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-10-11 23:46:10,473 INFO L83 FinitePrefix]: Finished finitePrefix Result has 476 conditions, 387 events. 57/387 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2180 event pairs, 2 based on Foata normal form. 0/267 useless extension candidates. Maximal degree in co-relation 237. Up to 32 conditions per place. [2024-10-11 23:46:10,473 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 59 transitions, 162 flow [2024-10-11 23:46:10,475 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 59 places, 58 transitions, 160 flow [2024-10-11 23:46:10,478 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 23:46:10,479 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;@560d351c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 23:46:10,480 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-10-11 23:46:10,483 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 23:46:10,484 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-10-11 23:46:10,484 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 23:46:10,485 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:46:10,485 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-11 23:46:10,485 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 23:46:10,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:46:10,486 INFO L85 PathProgramCache]: Analyzing trace with hash 441893073, now seen corresponding path program 1 times [2024-10-11 23:46:10,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:46:10,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65212775] [2024-10-11 23:46:10,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:10,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:46:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:46:10,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:10,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:46:10,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65212775] [2024-10-11 23:46:10,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65212775] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:46:10,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:46:10,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:46:10,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934689837] [2024-10-11 23:46:10,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:46:10,597 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:46:10,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:46:10,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:46:10,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:46:10,605 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 59 [2024-10-11 23:46:10,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 58 transitions, 160 flow. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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) [2024-10-11 23:46:10,606 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:46:10,606 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 59 [2024-10-11 23:46:10,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:46:11,116 INFO L124 PetriNetUnfolderBase]: 1575/3507 cut-off events. [2024-10-11 23:46:11,117 INFO L125 PetriNetUnfolderBase]: For 378/378 co-relation queries the response was YES. [2024-10-11 23:46:11,134 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6602 conditions, 3507 events. 1575/3507 cut-off events. For 378/378 co-relation queries the response was YES. Maximal size of possible extension queue 234. Compared 29695 event pairs, 669 based on Foata normal form. 2/3058 useless extension candidates. Maximal degree in co-relation 2329. Up to 1361 conditions per place. [2024-10-11 23:46:11,156 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 53 selfloop transitions, 9 changer transitions 0/86 dead transitions. [2024-10-11 23:46:11,159 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 86 transitions, 364 flow [2024-10-11 23:46:11,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:46:11,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:46:11,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 160 transitions. [2024-10-11 23:46:11,161 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6779661016949152 [2024-10-11 23:46:11,162 INFO L175 Difference]: Start difference. First operand has 59 places, 58 transitions, 160 flow. Second operand 4 states and 160 transitions. [2024-10-11 23:46:11,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 86 transitions, 364 flow [2024-10-11 23:46:11,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 86 transitions, 364 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 23:46:11,168 INFO L231 Difference]: Finished difference. Result has 65 places, 66 transitions, 232 flow [2024-10-11 23:46:11,168 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=232, PETRI_PLACES=65, PETRI_TRANSITIONS=66} [2024-10-11 23:46:11,170 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 6 predicate places. [2024-10-11 23:46:11,170 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 66 transitions, 232 flow [2024-10-11 23:46:11,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 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) [2024-10-11 23:46:11,171 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:46:11,171 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 23:46:11,172 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 23:46:11,172 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 23:46:11,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:46:11,172 INFO L85 PathProgramCache]: Analyzing trace with hash 813005534, now seen corresponding path program 1 times [2024-10-11 23:46:11,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:46:11,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843716434] [2024-10-11 23:46:11,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:11,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:46:11,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:46:11,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:11,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:46:11,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843716434] [2024-10-11 23:46:11,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843716434] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:46:11,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:46:11,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 23:46:11,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127625094] [2024-10-11 23:46:11,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:46:11,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:46:11,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:46:11,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:46:11,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:46:11,266 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 59 [2024-10-11 23:46:11,266 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 66 transitions, 232 flow. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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) [2024-10-11 23:46:11,266 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:46:11,266 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 59 [2024-10-11 23:46:11,266 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:46:11,741 INFO L124 PetriNetUnfolderBase]: 1663/3567 cut-off events. [2024-10-11 23:46:11,741 INFO L125 PetriNetUnfolderBase]: For 959/959 co-relation queries the response was YES. [2024-10-11 23:46:11,752 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7484 conditions, 3567 events. 1663/3567 cut-off events. For 959/959 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 29720 event pairs, 720 based on Foata normal form. 28/3342 useless extension candidates. Maximal degree in co-relation 2629. Up to 1497 conditions per place. [2024-10-11 23:46:11,771 INFO L140 encePairwiseOnDemand]: 48/59 looper letters, 55 selfloop transitions, 9 changer transitions 0/88 dead transitions. [2024-10-11 23:46:11,772 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 88 transitions, 428 flow [2024-10-11 23:46:11,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:46:11,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:46:11,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 162 transitions. [2024-10-11 23:46:11,774 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6864406779661016 [2024-10-11 23:46:11,774 INFO L175 Difference]: Start difference. First operand has 65 places, 66 transitions, 232 flow. Second operand 4 states and 162 transitions. [2024-10-11 23:46:11,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 88 transitions, 428 flow [2024-10-11 23:46:11,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 88 transitions, 428 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 23:46:11,783 INFO L231 Difference]: Finished difference. Result has 70 places, 67 transitions, 268 flow [2024-10-11 23:46:11,784 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=232, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=268, PETRI_PLACES=70, PETRI_TRANSITIONS=67} [2024-10-11 23:46:11,785 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 11 predicate places. [2024-10-11 23:46:11,785 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 67 transitions, 268 flow [2024-10-11 23:46:11,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 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) [2024-10-11 23:46:11,786 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:46:11,786 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-10-11 23:46:11,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 23:46:11,787 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 23:46:11,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:46:11,789 INFO L85 PathProgramCache]: Analyzing trace with hash 186248769, now seen corresponding path program 1 times [2024-10-11 23:46:11,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:46:11,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844238986] [2024-10-11 23:46:11,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:11,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:46:11,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:46:11,888 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:11,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:46:11,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844238986] [2024-10-11 23:46:11,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1844238986] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:46:11,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1233191849] [2024-10-11 23:46:11,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:11,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:46:11,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:46:11,893 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:46:11,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 23:46:11,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:46:11,987 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 23:46:11,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:46:12,050 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:12,050 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 23:46:12,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1233191849] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:46:12,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 23:46:12,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-11 23:46:12,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786393921] [2024-10-11 23:46:12,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:46:12,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 23:46:12,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:46:12,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 23:46:12,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-11 23:46:12,061 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 59 [2024-10-11 23:46:12,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 67 transitions, 268 flow. Second operand has 6 states, 6 states have (on average 25.5) internal successors, (153), 6 states have internal predecessors, (153), 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) [2024-10-11 23:46:12,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:46:12,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 59 [2024-10-11 23:46:12,063 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:46:12,546 INFO L124 PetriNetUnfolderBase]: 1571/3470 cut-off events. [2024-10-11 23:46:12,546 INFO L125 PetriNetUnfolderBase]: For 1620/1620 co-relation queries the response was YES. [2024-10-11 23:46:12,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7752 conditions, 3470 events. 1571/3470 cut-off events. For 1620/1620 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 28826 event pairs, 324 based on Foata normal form. 4/3239 useless extension candidates. Maximal degree in co-relation 2751. Up to 1332 conditions per place. [2024-10-11 23:46:12,576 INFO L140 encePairwiseOnDemand]: 49/59 looper letters, 54 selfloop transitions, 11 changer transitions 0/89 dead transitions. [2024-10-11 23:46:12,576 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 89 transitions, 464 flow [2024-10-11 23:46:12,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 23:46:12,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 23:46:12,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 210 transitions. [2024-10-11 23:46:12,579 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5932203389830508 [2024-10-11 23:46:12,579 INFO L175 Difference]: Start difference. First operand has 70 places, 67 transitions, 268 flow. Second operand 6 states and 210 transitions. [2024-10-11 23:46:12,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 89 transitions, 464 flow [2024-10-11 23:46:12,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 89 transitions, 456 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 23:46:12,589 INFO L231 Difference]: Finished difference. Result has 73 places, 66 transitions, 278 flow [2024-10-11 23:46:12,590 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=278, PETRI_PLACES=73, PETRI_TRANSITIONS=66} [2024-10-11 23:46:12,591 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 14 predicate places. [2024-10-11 23:46:12,592 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 66 transitions, 278 flow [2024-10-11 23:46:12,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.5) internal successors, (153), 6 states have internal predecessors, (153), 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) [2024-10-11 23:46:12,593 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:46:12,593 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:46:12,610 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 23:46:12,797 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:46:12,798 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 23:46:12,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:46:12,799 INFO L85 PathProgramCache]: Analyzing trace with hash -1798845974, now seen corresponding path program 1 times [2024-10-11 23:46:12,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:46:12,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695260356] [2024-10-11 23:46:12,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:12,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:46:12,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:46:12,897 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:12,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:46:12,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695260356] [2024-10-11 23:46:12,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695260356] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:46:12,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1684341812] [2024-10-11 23:46:12,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:12,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:46:12,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:46:12,902 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:46:12,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 23:46:13,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:46:13,014 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 23:46:13,015 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:46:13,053 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:13,053 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 23:46:13,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1684341812] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:46:13,054 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 23:46:13,054 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-11 23:46:13,054 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1863328618] [2024-10-11 23:46:13,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:46:13,055 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 23:46:13,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:46:13,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 23:46:13,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-11 23:46:13,067 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 59 [2024-10-11 23:46:13,067 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 66 transitions, 278 flow. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 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) [2024-10-11 23:46:13,067 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:46:13,067 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 59 [2024-10-11 23:46:13,067 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:46:13,553 INFO L124 PetriNetUnfolderBase]: 1615/3473 cut-off events. [2024-10-11 23:46:13,553 INFO L125 PetriNetUnfolderBase]: For 2113/2113 co-relation queries the response was YES. [2024-10-11 23:46:13,560 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7919 conditions, 3473 events. 1615/3473 cut-off events. For 2113/2113 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 28692 event pairs, 481 based on Foata normal form. 28/3276 useless extension candidates. Maximal degree in co-relation 2805. Up to 1304 conditions per place. [2024-10-11 23:46:13,577 INFO L140 encePairwiseOnDemand]: 49/59 looper letters, 60 selfloop transitions, 11 changer transitions 0/94 dead transitions. [2024-10-11 23:46:13,578 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 94 transitions, 498 flow [2024-10-11 23:46:13,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 23:46:13,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 23:46:13,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 216 transitions. [2024-10-11 23:46:13,579 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6101694915254238 [2024-10-11 23:46:13,579 INFO L175 Difference]: Start difference. First operand has 73 places, 66 transitions, 278 flow. Second operand 6 states and 216 transitions. [2024-10-11 23:46:13,579 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 94 transitions, 498 flow [2024-10-11 23:46:13,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 94 transitions, 478 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-10-11 23:46:13,585 INFO L231 Difference]: Finished difference. Result has 74 places, 65 transitions, 276 flow [2024-10-11 23:46:13,585 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=254, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=276, PETRI_PLACES=74, PETRI_TRANSITIONS=65} [2024-10-11 23:46:13,586 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 15 predicate places. [2024-10-11 23:46:13,586 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 65 transitions, 276 flow [2024-10-11 23:46:13,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 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) [2024-10-11 23:46:13,586 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:46:13,586 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-10-11 23:46:13,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-10-11 23:46:13,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:46:13,791 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 23:46:13,792 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:46:13,792 INFO L85 PathProgramCache]: Analyzing trace with hash 1478744974, now seen corresponding path program 1 times [2024-10-11 23:46:13,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:46:13,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603349180] [2024-10-11 23:46:13,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:13,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:46:13,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:46:13,875 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:13,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:46:13,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603349180] [2024-10-11 23:46:13,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603349180] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:46:13,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1202787818] [2024-10-11 23:46:13,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:13,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:46:13,877 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:46:13,879 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:46:13,880 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 23:46:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:46:13,958 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 23:46:13,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:46:13,988 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:13,989 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 23:46:14,036 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:14,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1202787818] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 23:46:14,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 23:46:14,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-10-11 23:46:14,038 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028370245] [2024-10-11 23:46:14,038 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 23:46:14,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 23:46:14,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:46:14,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 23:46:14,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-11 23:46:14,054 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 59 [2024-10-11 23:46:14,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 65 transitions, 276 flow. Second operand has 12 states, 12 states have (on average 25.916666666666668) internal successors, (311), 12 states have internal predecessors, (311), 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) [2024-10-11 23:46:14,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:46:14,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 59 [2024-10-11 23:46:14,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:46:14,573 INFO L124 PetriNetUnfolderBase]: 1567/3432 cut-off events. [2024-10-11 23:46:14,574 INFO L125 PetriNetUnfolderBase]: For 2141/2141 co-relation queries the response was YES. [2024-10-11 23:46:14,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7862 conditions, 3432 events. 1567/3432 cut-off events. For 2141/2141 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 28557 event pairs, 325 based on Foata normal form. 4/3209 useless extension candidates. Maximal degree in co-relation 2790. Up to 1332 conditions per place. [2024-10-11 23:46:14,603 INFO L140 encePairwiseOnDemand]: 49/59 looper letters, 56 selfloop transitions, 12 changer transitions 0/91 dead transitions. [2024-10-11 23:46:14,604 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 91 transitions, 494 flow [2024-10-11 23:46:14,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 23:46:14,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 23:46:14,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 237 transitions. [2024-10-11 23:46:14,605 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5738498789346247 [2024-10-11 23:46:14,605 INFO L175 Difference]: Start difference. First operand has 74 places, 65 transitions, 276 flow. Second operand 7 states and 237 transitions. [2024-10-11 23:46:14,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 91 transitions, 494 flow [2024-10-11 23:46:14,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 91 transitions, 466 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-10-11 23:46:14,612 INFO L231 Difference]: Finished difference. Result has 75 places, 65 transitions, 278 flow [2024-10-11 23:46:14,612 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=278, PETRI_PLACES=75, PETRI_TRANSITIONS=65} [2024-10-11 23:46:14,614 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 16 predicate places. [2024-10-11 23:46:14,614 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 65 transitions, 278 flow [2024-10-11 23:46:14,614 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 25.916666666666668) internal successors, (311), 12 states have internal predecessors, (311), 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) [2024-10-11 23:46:14,614 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:46:14,615 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-11 23:46:14,631 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-11 23:46:14,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:46:14,816 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 23:46:14,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:46:14,817 INFO L85 PathProgramCache]: Analyzing trace with hash 70350113, now seen corresponding path program 1 times [2024-10-11 23:46:14,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:46:14,817 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1167228440] [2024-10-11 23:46:14,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:14,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:46:14,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:46:14,900 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:14,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:46:14,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1167228440] [2024-10-11 23:46:14,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1167228440] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:46:14,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167960211] [2024-10-11 23:46:14,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:14,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:46:14,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:46:14,903 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:46:14,904 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-11 23:46:14,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:46:14,989 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 23:46:14,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:46:15,019 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:15,019 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 23:46:15,066 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:15,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167960211] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 23:46:15,067 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 23:46:15,067 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-10-11 23:46:15,067 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1075062085] [2024-10-11 23:46:15,067 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 23:46:15,068 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 23:46:15,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:46:15,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 23:46:15,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-11 23:46:15,080 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 59 [2024-10-11 23:46:15,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 65 transitions, 278 flow. Second operand has 12 states, 12 states have (on average 26.0) internal successors, (312), 12 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:46:15,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:46:15,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 59 [2024-10-11 23:46:15,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:46:15,466 INFO L124 PetriNetUnfolderBase]: 1567/3400 cut-off events. [2024-10-11 23:46:15,466 INFO L125 PetriNetUnfolderBase]: For 2086/2086 co-relation queries the response was YES. [2024-10-11 23:46:15,475 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7735 conditions, 3400 events. 1567/3400 cut-off events. For 2086/2086 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 28432 event pairs, 295 based on Foata normal form. 28/3231 useless extension candidates. Maximal degree in co-relation 2755. Up to 1304 conditions per place. [2024-10-11 23:46:15,490 INFO L140 encePairwiseOnDemand]: 49/59 looper letters, 64 selfloop transitions, 13 changer transitions 0/99 dead transitions. [2024-10-11 23:46:15,490 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 99 transitions, 530 flow [2024-10-11 23:46:15,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-11 23:46:15,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-11 23:46:15,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 245 transitions. [2024-10-11 23:46:15,492 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5932203389830508 [2024-10-11 23:46:15,492 INFO L175 Difference]: Start difference. First operand has 75 places, 65 transitions, 278 flow. Second operand 7 states and 245 transitions. [2024-10-11 23:46:15,492 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 99 transitions, 530 flow [2024-10-11 23:46:15,496 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 99 transitions, 502 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-11 23:46:15,499 INFO L231 Difference]: Finished difference. Result has 74 places, 65 transitions, 282 flow [2024-10-11 23:46:15,500 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=282, PETRI_PLACES=74, PETRI_TRANSITIONS=65} [2024-10-11 23:46:15,500 INFO L277 CegarLoopForPetriNet]: 59 programPoint places, 15 predicate places. [2024-10-11 23:46:15,500 INFO L471 AbstractCegarLoop]: Abstraction has has 74 places, 65 transitions, 282 flow [2024-10-11 23:46:15,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 26.0) internal successors, (312), 12 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:46:15,501 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:46:15,501 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2024-10-11 23:46:15,520 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-11 23:46:15,705 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-10-11 23:46:15,706 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 23:46:15,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:46:15,706 INFO L85 PathProgramCache]: Analyzing trace with hash -560240094, now seen corresponding path program 1 times [2024-10-11 23:46:15,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:46:15,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286199539] [2024-10-11 23:46:15,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:15,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:46:15,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 23:46:15,738 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 23:46:15,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 23:46:15,770 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 23:46:15,771 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 23:46:15,771 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-10-11 23:46:15,771 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-10-11 23:46:15,771 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-10-11 23:46:15,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-10-11 23:46:15,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-10-11 23:46:15,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-10-11 23:46:15,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-10-11 23:46:15,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-10-11 23:46:15,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-10-11 23:46:15,772 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 10 remaining) [2024-10-11 23:46:15,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 23:46:15,773 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:46:15,773 WARN L239 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 23:46:15,773 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-10-11 23:46:15,802 INFO L143 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2024-10-11 23:46:15,805 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 73 transitions, 218 flow [2024-10-11 23:46:15,895 INFO L124 PetriNetUnfolderBase]: 336/1466 cut-off events. [2024-10-11 23:46:15,895 INFO L125 PetriNetUnfolderBase]: For 419/419 co-relation queries the response was YES. [2024-10-11 23:46:15,899 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1902 conditions, 1466 events. 336/1466 cut-off events. For 419/419 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 10295 event pairs, 64 based on Foata normal form. 0/1036 useless extension candidates. Maximal degree in co-relation 941. Up to 192 conditions per place. [2024-10-11 23:46:15,900 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 73 transitions, 218 flow [2024-10-11 23:46:15,905 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 73 places, 72 transitions, 216 flow [2024-10-11 23:46:15,906 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 23:46:15,907 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;@560d351c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 23:46:15,907 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-10-11 23:46:15,909 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 23:46:15,909 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-10-11 23:46:15,909 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 23:46:15,909 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:46:15,909 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-11 23:46:15,909 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 23:46:15,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:46:15,910 INFO L85 PathProgramCache]: Analyzing trace with hash 509656416, now seen corresponding path program 1 times [2024-10-11 23:46:15,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:46:15,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111061992] [2024-10-11 23:46:15,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:15,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:46:15,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:46:15,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:15,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:46:15,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111061992] [2024-10-11 23:46:15,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111061992] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:46:15,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:46:15,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:46:15,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782141516] [2024-10-11 23:46:15,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:46:15,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:46:15,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:46:15,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:46:15,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:46:15,960 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 73 [2024-10-11 23:46:15,960 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 72 transitions, 216 flow. Second operand has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 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) [2024-10-11 23:46:15,961 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:46:15,961 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 73 [2024-10-11 23:46:15,961 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:46:19,491 INFO L124 PetriNetUnfolderBase]: 21857/38845 cut-off events. [2024-10-11 23:46:19,491 INFO L125 PetriNetUnfolderBase]: For 5140/5140 co-relation queries the response was YES. [2024-10-11 23:46:19,578 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75258 conditions, 38845 events. 21857/38845 cut-off events. For 5140/5140 co-relation queries the response was YES. Maximal size of possible extension queue 1871. Compared 374989 event pairs, 10131 based on Foata normal form. 2/35204 useless extension candidates. Maximal degree in co-relation 22487. Up to 17821 conditions per place. [2024-10-11 23:46:19,767 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 67 selfloop transitions, 9 changer transitions 0/106 dead transitions. [2024-10-11 23:46:19,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 106 transitions, 472 flow [2024-10-11 23:46:19,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:46:19,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:46:19,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 198 transitions. [2024-10-11 23:46:19,768 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.678082191780822 [2024-10-11 23:46:19,768 INFO L175 Difference]: Start difference. First operand has 73 places, 72 transitions, 216 flow. Second operand 4 states and 198 transitions. [2024-10-11 23:46:19,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 106 transitions, 472 flow [2024-10-11 23:46:19,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 106 transitions, 472 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 23:46:19,775 INFO L231 Difference]: Finished difference. Result has 79 places, 80 transitions, 288 flow [2024-10-11 23:46:19,775 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=288, PETRI_PLACES=79, PETRI_TRANSITIONS=80} [2024-10-11 23:46:19,776 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 6 predicate places. [2024-10-11 23:46:19,776 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 80 transitions, 288 flow [2024-10-11 23:46:19,776 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.25) internal successors, (125), 4 states have internal predecessors, (125), 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) [2024-10-11 23:46:19,776 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:46:19,777 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-11 23:46:19,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 23:46:19,777 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 23:46:19,777 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:46:19,778 INFO L85 PathProgramCache]: Analyzing trace with hash -1381527737, now seen corresponding path program 1 times [2024-10-11 23:46:19,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:46:19,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107227377] [2024-10-11 23:46:19,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:19,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:46:19,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:46:19,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:19,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:46:19,822 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107227377] [2024-10-11 23:46:19,822 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107227377] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:46:19,822 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:46:19,823 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 23:46:19,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231478124] [2024-10-11 23:46:19,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:46:19,823 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:46:19,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:46:19,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:46:19,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:46:19,831 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 73 [2024-10-11 23:46:19,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 80 transitions, 288 flow. Second operand has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 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) [2024-10-11 23:46:19,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:46:19,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 73 [2024-10-11 23:46:19,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:46:23,313 INFO L124 PetriNetUnfolderBase]: 22713/39641 cut-off events. [2024-10-11 23:46:23,313 INFO L125 PetriNetUnfolderBase]: For 9742/9742 co-relation queries the response was YES. [2024-10-11 23:46:23,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82764 conditions, 39641 events. 22713/39641 cut-off events. For 9742/9742 co-relation queries the response was YES. Maximal size of possible extension queue 1891. Compared 381645 event pairs, 10081 based on Foata normal form. 60/37256 useless extension candidates. Maximal degree in co-relation 25155. Up to 19013 conditions per place. [2024-10-11 23:46:23,627 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 70 selfloop transitions, 9 changer transitions 0/109 dead transitions. [2024-10-11 23:46:23,627 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 109 transitions, 540 flow [2024-10-11 23:46:23,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:46:23,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:46:23,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 201 transitions. [2024-10-11 23:46:23,629 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6883561643835616 [2024-10-11 23:46:23,629 INFO L175 Difference]: Start difference. First operand has 79 places, 80 transitions, 288 flow. Second operand 4 states and 201 transitions. [2024-10-11 23:46:23,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 109 transitions, 540 flow [2024-10-11 23:46:23,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 109 transitions, 540 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 23:46:23,636 INFO L231 Difference]: Finished difference. Result has 84 places, 81 transitions, 324 flow [2024-10-11 23:46:23,636 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=288, PETRI_DIFFERENCE_MINUEND_PLACES=79, 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=324, PETRI_PLACES=84, PETRI_TRANSITIONS=81} [2024-10-11 23:46:23,637 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 11 predicate places. [2024-10-11 23:46:23,637 INFO L471 AbstractCegarLoop]: Abstraction has has 84 places, 81 transitions, 324 flow [2024-10-11 23:46:23,638 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 31.5) internal successors, (126), 4 states have internal predecessors, (126), 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) [2024-10-11 23:46:23,638 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:46:23,638 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-10-11 23:46:23,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-11 23:46:23,638 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 23:46:23,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:46:23,639 INFO L85 PathProgramCache]: Analyzing trace with hash 570191777, now seen corresponding path program 1 times [2024-10-11 23:46:23,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:46:23,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402198264] [2024-10-11 23:46:23,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:23,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:46:23,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:46:23,730 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:23,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:46:23,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402198264] [2024-10-11 23:46:23,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402198264] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:46:23,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215163664] [2024-10-11 23:46:23,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:23,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:46:23,731 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:46:23,733 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:46:23,734 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-11 23:46:23,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:46:23,828 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 23:46:23,829 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:46:23,863 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:23,863 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 23:46:23,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215163664] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:46:23,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 23:46:23,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-10-11 23:46:23,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025933883] [2024-10-11 23:46:23,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:46:23,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 23:46:23,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:46:23,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 23:46:23,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-11 23:46:23,870 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 73 [2024-10-11 23:46:23,871 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 84 places, 81 transitions, 324 flow. Second operand has 6 states, 6 states have (on average 31.5) internal successors, (189), 6 states have internal predecessors, (189), 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) [2024-10-11 23:46:23,871 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:46:23,871 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 73 [2024-10-11 23:46:23,871 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:46:27,353 INFO L124 PetriNetUnfolderBase]: 21841/38750 cut-off events. [2024-10-11 23:46:27,354 INFO L125 PetriNetUnfolderBase]: For 14584/14584 co-relation queries the response was YES. [2024-10-11 23:46:27,489 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84450 conditions, 38750 events. 21841/38750 cut-off events. For 14584/14584 co-relation queries the response was YES. Maximal size of possible extension queue 1879. Compared 375761 event pairs, 4787 based on Foata normal form. 12/36471 useless extension candidates. Maximal degree in co-relation 25694. Up to 17653 conditions per place. [2024-10-11 23:46:27,670 INFO L140 encePairwiseOnDemand]: 63/73 looper letters, 70 selfloop transitions, 11 changer transitions 0/111 dead transitions. [2024-10-11 23:46:27,670 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 88 places, 111 transitions, 580 flow [2024-10-11 23:46:27,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 23:46:27,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 23:46:27,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 262 transitions. [2024-10-11 23:46:27,672 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5981735159817352 [2024-10-11 23:46:27,672 INFO L175 Difference]: Start difference. First operand has 84 places, 81 transitions, 324 flow. Second operand 6 states and 262 transitions. [2024-10-11 23:46:27,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 88 places, 111 transitions, 580 flow [2024-10-11 23:46:27,686 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 111 transitions, 572 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 23:46:27,687 INFO L231 Difference]: Finished difference. Result has 87 places, 80 transitions, 334 flow [2024-10-11 23:46:27,688 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=312, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=334, PETRI_PLACES=87, PETRI_TRANSITIONS=80} [2024-10-11 23:46:27,688 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 14 predicate places. [2024-10-11 23:46:27,689 INFO L471 AbstractCegarLoop]: Abstraction has has 87 places, 80 transitions, 334 flow [2024-10-11 23:46:27,689 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.5) internal successors, (189), 6 states have internal predecessors, (189), 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) [2024-10-11 23:46:27,689 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:46:27,689 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:46:27,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-10-11 23:46:27,890 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-10-11 23:46:27,890 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 23:46:27,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:46:27,891 INFO L85 PathProgramCache]: Analyzing trace with hash 1593380721, now seen corresponding path program 1 times [2024-10-11 23:46:27,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:46:27,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881847000] [2024-10-11 23:46:27,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:27,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:46:27,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:46:27,970 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:27,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:46:27,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881847000] [2024-10-11 23:46:27,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881847000] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:46:27,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320532779] [2024-10-11 23:46:27,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:27,971 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:46:27,971 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:46:27,974 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:46:27,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-11 23:46:28,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:46:28,070 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 23:46:28,071 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:46:28,106 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:28,106 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 23:46:28,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320532779] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:46:28,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 23:46:28,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-11 23:46:28,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198549656] [2024-10-11 23:46:28,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:46:28,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 23:46:28,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:46:28,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 23:46:28,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-11 23:46:28,117 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 73 [2024-10-11 23:46:28,118 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 80 transitions, 334 flow. Second operand has 6 states, 6 states have (on average 31.666666666666668) internal successors, (190), 6 states have internal predecessors, (190), 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) [2024-10-11 23:46:28,118 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:46:28,118 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 73 [2024-10-11 23:46:28,118 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:46:31,575 INFO L124 PetriNetUnfolderBase]: 22269/38990 cut-off events. [2024-10-11 23:46:31,575 INFO L125 PetriNetUnfolderBase]: For 19401/19401 co-relation queries the response was YES. [2024-10-11 23:46:31,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86022 conditions, 38990 events. 22269/38990 cut-off events. For 19401/19401 co-relation queries the response was YES. Maximal size of possible extension queue 1885. Compared 376415 event pairs, 4671 based on Foata normal form. 180/36905 useless extension candidates. Maximal degree in co-relation 26263. Up to 15201 conditions per place. [2024-10-11 23:46:31,897 INFO L140 encePairwiseOnDemand]: 63/73 looper letters, 79 selfloop transitions, 11 changer transitions 0/119 dead transitions. [2024-10-11 23:46:31,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 119 transitions, 626 flow [2024-10-11 23:46:31,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 23:46:31,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 23:46:31,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 271 transitions. [2024-10-11 23:46:31,899 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6187214611872146 [2024-10-11 23:46:31,899 INFO L175 Difference]: Start difference. First operand has 87 places, 80 transitions, 334 flow. Second operand 6 states and 271 transitions. [2024-10-11 23:46:31,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 119 transitions, 626 flow [2024-10-11 23:46:31,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 119 transitions, 606 flow, removed 1 selfloop flow, removed 3 redundant places. [2024-10-11 23:46:31,918 INFO L231 Difference]: Finished difference. Result has 88 places, 79 transitions, 332 flow [2024-10-11 23:46:31,919 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=332, PETRI_PLACES=88, PETRI_TRANSITIONS=79} [2024-10-11 23:46:31,919 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 15 predicate places. [2024-10-11 23:46:31,919 INFO L471 AbstractCegarLoop]: Abstraction has has 88 places, 79 transitions, 332 flow [2024-10-11 23:46:31,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 31.666666666666668) internal successors, (190), 6 states have internal predecessors, (190), 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) [2024-10-11 23:46:31,920 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:46:31,920 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-10-11 23:46:31,936 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-10-11 23:46:32,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-11 23:46:32,125 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 23:46:32,125 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:46:32,125 INFO L85 PathProgramCache]: Analyzing trace with hash 496076405, now seen corresponding path program 1 times [2024-10-11 23:46:32,126 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:46:32,126 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110471325] [2024-10-11 23:46:32,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:32,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:46:32,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:46:32,217 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:32,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:46:32,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110471325] [2024-10-11 23:46:32,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110471325] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:46:32,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [955672909] [2024-10-11 23:46:32,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:32,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:46:32,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:46:32,221 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:46:32,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-11 23:46:32,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:46:32,316 INFO L255 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 23:46:32,317 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:46:32,352 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:32,352 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 23:46:32,402 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:32,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [955672909] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 23:46:32,403 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 23:46:32,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-10-11 23:46:32,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281553007] [2024-10-11 23:46:32,403 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 23:46:32,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 23:46:32,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:46:32,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 23:46:32,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-11 23:46:32,417 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 73 [2024-10-11 23:46:32,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 79 transitions, 332 flow. Second operand has 12 states, 12 states have (on average 31.916666666666668) internal successors, (383), 12 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:46:32,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:46:32,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 73 [2024-10-11 23:46:32,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:46:35,908 INFO L124 PetriNetUnfolderBase]: 21825/38549 cut-off events. [2024-10-11 23:46:35,909 INFO L125 PetriNetUnfolderBase]: For 19575/19575 co-relation queries the response was YES. [2024-10-11 23:46:36,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 85321 conditions, 38549 events. 21825/38549 cut-off events. For 19575/19575 co-relation queries the response was YES. Maximal size of possible extension queue 1879. Compared 374434 event pairs, 6285 based on Foata normal form. 12/36294 useless extension candidates. Maximal degree in co-relation 26005. Up to 17653 conditions per place. [2024-10-11 23:46:36,193 INFO L140 encePairwiseOnDemand]: 63/73 looper letters, 78 selfloop transitions, 15 changer transitions 0/122 dead transitions. [2024-10-11 23:46:36,193 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 122 transitions, 660 flow [2024-10-11 23:46:36,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 23:46:36,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 23:46:36,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 365 transitions. [2024-10-11 23:46:36,195 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-10-11 23:46:36,195 INFO L175 Difference]: Start difference. First operand has 88 places, 79 transitions, 332 flow. Second operand 9 states and 365 transitions. [2024-10-11 23:46:36,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 122 transitions, 660 flow [2024-10-11 23:46:36,213 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 122 transitions, 628 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-10-11 23:46:36,214 INFO L231 Difference]: Finished difference. Result has 91 places, 82 transitions, 356 flow [2024-10-11 23:46:36,214 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=356, PETRI_PLACES=91, PETRI_TRANSITIONS=82} [2024-10-11 23:46:36,215 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 18 predicate places. [2024-10-11 23:46:36,215 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 82 transitions, 356 flow [2024-10-11 23:46:36,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 31.916666666666668) internal successors, (383), 12 states have internal predecessors, (383), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-11 23:46:36,215 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:46:36,215 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-10-11 23:46:36,228 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-10-11 23:46:36,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:46:36,416 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 23:46:36,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:46:36,417 INFO L85 PathProgramCache]: Analyzing trace with hash -2144804671, now seen corresponding path program 1 times [2024-10-11 23:46:36,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:46:36,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680731538] [2024-10-11 23:46:36,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:36,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:46:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:46:36,505 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:36,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:46:36,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680731538] [2024-10-11 23:46:36,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680731538] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:46:36,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712769289] [2024-10-11 23:46:36,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:36,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:46:36,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:46:36,507 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 23:46:36,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-11 23:46:36,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:46:36,603 INFO L255 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 23:46:36,604 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:46:36,637 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:36,637 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 23:46:36,687 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:36,689 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712769289] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-11 23:46:36,689 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-11 23:46:36,689 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-10-11 23:46:36,689 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566764488] [2024-10-11 23:46:36,690 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-11 23:46:36,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-11 23:46:36,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:46:36,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-11 23:46:36,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-10-11 23:46:36,706 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 73 [2024-10-11 23:46:36,707 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 82 transitions, 356 flow. Second operand has 12 states, 12 states have (on average 32.0) internal successors, (384), 12 states have internal predecessors, (384), 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) [2024-10-11 23:46:36,707 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:46:36,707 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 73 [2024-10-11 23:46:36,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:46:39,816 INFO L124 PetriNetUnfolderBase]: 21825/38264 cut-off events. [2024-10-11 23:46:39,817 INFO L125 PetriNetUnfolderBase]: For 19372/19372 co-relation queries the response was YES. [2024-10-11 23:46:39,917 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84477 conditions, 38264 events. 21825/38264 cut-off events. For 19372/19372 co-relation queries the response was YES. Maximal size of possible extension queue 1878. Compared 368682 event pairs, 4311 based on Foata normal form. 180/36359 useless extension candidates. Maximal degree in co-relation 25612. Up to 15201 conditions per place. [2024-10-11 23:46:40,043 INFO L140 encePairwiseOnDemand]: 63/73 looper letters, 98 selfloop transitions, 17 changer transitions 0/143 dead transitions. [2024-10-11 23:46:40,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 143 transitions, 762 flow [2024-10-11 23:46:40,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-11 23:46:40,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-11 23:46:40,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 383 transitions. [2024-10-11 23:46:40,045 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5829528158295282 [2024-10-11 23:46:40,045 INFO L175 Difference]: Start difference. First operand has 91 places, 82 transitions, 356 flow. Second operand 9 states and 383 transitions. [2024-10-11 23:46:40,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 143 transitions, 762 flow [2024-10-11 23:46:40,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 143 transitions, 726 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-10-11 23:46:40,064 INFO L231 Difference]: Finished difference. Result has 92 places, 85 transitions, 378 flow [2024-10-11 23:46:40,064 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=378, PETRI_PLACES=92, PETRI_TRANSITIONS=85} [2024-10-11 23:46:40,064 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 19 predicate places. [2024-10-11 23:46:40,064 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 85 transitions, 378 flow [2024-10-11 23:46:40,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 32.0) internal successors, (384), 12 states have internal predecessors, (384), 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) [2024-10-11 23:46:40,065 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:46:40,065 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:46:40,083 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-11 23:46:40,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-10-11 23:46:40,266 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 23:46:40,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:46:40,266 INFO L85 PathProgramCache]: Analyzing trace with hash 40421344, now seen corresponding path program 1 times [2024-10-11 23:46:40,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:46:40,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109214761] [2024-10-11 23:46:40,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:40,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:46:40,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:46:40,320 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 23:46:40,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:46:40,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109214761] [2024-10-11 23:46:40,321 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109214761] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:46:40,321 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:46:40,321 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 23:46:40,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641730965] [2024-10-11 23:46:40,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:46:40,321 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:46:40,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:46:40,322 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:46:40,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:46:40,329 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 73 [2024-10-11 23:46:40,330 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 85 transitions, 378 flow. Second operand has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 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) [2024-10-11 23:46:40,330 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:46:40,330 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 73 [2024-10-11 23:46:40,330 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:46:43,744 INFO L124 PetriNetUnfolderBase]: 23397/39019 cut-off events. [2024-10-11 23:46:43,744 INFO L125 PetriNetUnfolderBase]: For 19441/19441 co-relation queries the response was YES. [2024-10-11 23:46:43,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88083 conditions, 39019 events. 23397/39019 cut-off events. For 19441/19441 co-relation queries the response was YES. Maximal size of possible extension queue 1867. Compared 359666 event pairs, 10272 based on Foata normal form. 922/38595 useless extension candidates. Maximal degree in co-relation 26392. Up to 20283 conditions per place. [2024-10-11 23:46:44,256 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 76 selfloop transitions, 13 changer transitions 0/115 dead transitions. [2024-10-11 23:46:44,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 115 transitions, 652 flow [2024-10-11 23:46:44,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:46:44,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:46:44,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 203 transitions. [2024-10-11 23:46:44,258 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6952054794520548 [2024-10-11 23:46:44,258 INFO L175 Difference]: Start difference. First operand has 92 places, 85 transitions, 378 flow. Second operand 4 states and 203 transitions. [2024-10-11 23:46:44,258 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 115 transitions, 652 flow [2024-10-11 23:46:44,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 115 transitions, 618 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-11 23:46:44,270 INFO L231 Difference]: Finished difference. Result has 92 places, 86 transitions, 392 flow [2024-10-11 23:46:44,270 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=392, PETRI_PLACES=92, PETRI_TRANSITIONS=86} [2024-10-11 23:46:44,270 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 19 predicate places. [2024-10-11 23:46:44,270 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 86 transitions, 392 flow [2024-10-11 23:46:44,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.0) internal successors, (132), 4 states have internal predecessors, (132), 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) [2024-10-11 23:46:44,271 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:46:44,271 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:46:44,271 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-11 23:46:44,271 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 23:46:44,271 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:46:44,271 INFO L85 PathProgramCache]: Analyzing trace with hash -1060775699, now seen corresponding path program 1 times [2024-10-11 23:46:44,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:46:44,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357966634] [2024-10-11 23:46:44,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:44,272 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:46:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:46:44,321 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 23:46:44,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:46:44,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357966634] [2024-10-11 23:46:44,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357966634] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:46:44,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:46:44,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 23:46:44,322 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256140423] [2024-10-11 23:46:44,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:46:44,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:46:44,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:46:44,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:46:44,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:46:44,329 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 73 [2024-10-11 23:46:44,329 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 86 transitions, 392 flow. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 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) [2024-10-11 23:46:44,329 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:46:44,329 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 73 [2024-10-11 23:46:44,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:46:47,731 INFO L124 PetriNetUnfolderBase]: 23397/37689 cut-off events. [2024-10-11 23:46:47,731 INFO L125 PetriNetUnfolderBase]: For 20775/20775 co-relation queries the response was YES. [2024-10-11 23:46:47,812 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89864 conditions, 37689 events. 23397/37689 cut-off events. For 20775/20775 co-relation queries the response was YES. Maximal size of possible extension queue 1777. Compared 333416 event pairs, 10196 based on Foata normal form. 1330/38811 useless extension candidates. Maximal degree in co-relation 45203. Up to 20283 conditions per place. [2024-10-11 23:46:47,924 INFO L140 encePairwiseOnDemand]: 62/73 looper letters, 76 selfloop transitions, 13 changer transitions 0/115 dead transitions. [2024-10-11 23:46:47,925 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 115 transitions, 664 flow [2024-10-11 23:46:47,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:46:47,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:46:47,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 203 transitions. [2024-10-11 23:46:47,926 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6952054794520548 [2024-10-11 23:46:47,926 INFO L175 Difference]: Start difference. First operand has 92 places, 86 transitions, 392 flow. Second operand 4 states and 203 transitions. [2024-10-11 23:46:47,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 115 transitions, 664 flow [2024-10-11 23:46:47,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 115 transitions, 652 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 23:46:47,967 INFO L231 Difference]: Finished difference. Result has 96 places, 87 transitions, 428 flow [2024-10-11 23:46:47,967 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=73, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=91, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=428, PETRI_PLACES=96, PETRI_TRANSITIONS=87} [2024-10-11 23:46:47,968 INFO L277 CegarLoopForPetriNet]: 73 programPoint places, 23 predicate places. [2024-10-11 23:46:47,968 INFO L471 AbstractCegarLoop]: Abstraction has has 96 places, 87 transitions, 428 flow [2024-10-11 23:46:47,968 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 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) [2024-10-11 23:46:47,968 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:46:47,968 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1] [2024-10-11 23:46:47,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-11 23:46:47,968 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 23:46:47,968 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:46:47,968 INFO L85 PathProgramCache]: Analyzing trace with hash 1948826129, now seen corresponding path program 1 times [2024-10-11 23:46:47,969 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:46:47,969 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519441078] [2024-10-11 23:46:47,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:47,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:46:47,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 23:46:47,985 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 23:46:47,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 23:46:48,001 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 23:46:48,001 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 23:46:48,001 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-10-11 23:46:48,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-10-11 23:46:48,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-10-11 23:46:48,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-10-11 23:46:48,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-10-11 23:46:48,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-10-11 23:46:48,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-10-11 23:46:48,002 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-10-11 23:46:48,003 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-10-11 23:46:48,003 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 10 remaining) [2024-10-11 23:46:48,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-11 23:46:48,003 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:46:48,004 WARN L239 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 23:46:48,004 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-10-11 23:46:48,031 INFO L143 ThreadInstanceAdder]: Constructed 16 joinOtherThreadTransitions. [2024-10-11 23:46:48,033 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 87 transitions, 278 flow [2024-10-11 23:46:48,326 INFO L124 PetriNetUnfolderBase]: 1817/5929 cut-off events. [2024-10-11 23:46:48,326 INFO L125 PetriNetUnfolderBase]: For 2144/2144 co-relation queries the response was YES. [2024-10-11 23:46:48,341 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8070 conditions, 5929 events. 1817/5929 cut-off events. For 2144/2144 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 50651 event pairs, 626 based on Foata normal form. 0/4319 useless extension candidates. Maximal degree in co-relation 3890. Up to 1024 conditions per place. [2024-10-11 23:46:48,342 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 87 transitions, 278 flow [2024-10-11 23:46:48,356 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 86 transitions, 276 flow [2024-10-11 23:46:48,356 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 23:46:48,357 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;@560d351c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 23:46:48,357 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-10-11 23:46:48,359 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 23:46:48,359 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-10-11 23:46:48,359 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 23:46:48,359 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:46:48,359 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-11 23:46:48,359 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-10-11 23:46:48,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:46:48,359 INFO L85 PathProgramCache]: Analyzing trace with hash 590780029, now seen corresponding path program 1 times [2024-10-11 23:46:48,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:46:48,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430740051] [2024-10-11 23:46:48,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:46:48,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:46:48,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:46:48,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-11 23:46:48,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:46:48,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430740051] [2024-10-11 23:46:48,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430740051] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:46:48,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:46:48,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:46:48,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470881187] [2024-10-11 23:46:48,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:46:48,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:46:48,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:46:48,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:46:48,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:46:48,412 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 87 [2024-10-11 23:46:48,413 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 86 transitions, 276 flow. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 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) [2024-10-11 23:46:48,413 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:46:48,413 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 87 [2024-10-11 23:46:48,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand