./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing.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/goblint-regression/28-race_reach_78-equ_racing.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 246cd07a930f0cb8d777c2eae74f25d04e3267c275b813f0c0f5232c23299340 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 23:59:21,731 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 23:59:21,798 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-11 23:59:21,806 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 23:59:21,806 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 23:59:21,828 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 23:59:21,829 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 23:59:21,829 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 23:59:21,829 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 23:59:21,830 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 23:59:21,830 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 23:59:21,834 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 23:59:21,835 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 23:59:21,835 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 23:59:21,835 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 23:59:21,836 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 23:59:21,836 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 23:59:21,836 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 23:59:21,836 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 23:59:21,837 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 23:59:21,837 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 23:59:21,839 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 23:59:21,839 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 23:59:21,840 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 23:59:21,840 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 23:59:21,840 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 23:59:21,840 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 23:59:21,840 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 23:59:21,841 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 23:59:21,841 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 23:59:21,841 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 23:59:21,841 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 23:59:21,841 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 23:59:21,842 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 23:59:21,842 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 23:59:21,842 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 23:59:21,842 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 23:59:21,842 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 23:59:21,843 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 23:59:21,843 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 23:59:21,843 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 23:59:21,844 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 23:59:21,844 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 23:59:21,844 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 23:59:21,844 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 246cd07a930f0cb8d777c2eae74f25d04e3267c275b813f0c0f5232c23299340 [2024-10-11 23:59:22,054 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 23:59:22,077 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 23:59:22,079 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 23:59:22,080 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 23:59:22,081 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 23:59:22,082 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing.i [2024-10-11 23:59:23,389 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 23:59:23,607 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 23:59:23,608 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing.i [2024-10-11 23:59:23,623 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/8d500a252/5418f64fc2e14048b58aa3227dc7333e/FLAG6fc601ad1 [2024-10-11 23:59:23,635 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/8d500a252/5418f64fc2e14048b58aa3227dc7333e [2024-10-11 23:59:23,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 23:59:23,638 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 23:59:23,639 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 23:59:23,640 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 23:59:23,645 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 23:59:23,646 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:59:23" (1/1) ... [2024-10-11 23:59:23,647 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e48b8e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:23, skipping insertion in model container [2024-10-11 23:59:23,665 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 11:59:23" (1/1) ... [2024-10-11 23:59:23,724 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 23:59:24,135 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 23:59:24,152 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 23:59:24,225 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 23:59:24,293 INFO L204 MainTranslator]: Completed translation [2024-10-11 23:59:24,294 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:24 WrapperNode [2024-10-11 23:59:24,294 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 23:59:24,296 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 23:59:24,296 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 23:59:24,296 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 23:59:24,306 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:24" (1/1) ... [2024-10-11 23:59:24,336 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:24" (1/1) ... [2024-10-11 23:59:24,370 INFO L138 Inliner]: procedures = 272, calls = 65, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 246 [2024-10-11 23:59:24,370 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 23:59:24,371 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 23:59:24,371 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 23:59:24,371 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 23:59:24,384 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:24" (1/1) ... [2024-10-11 23:59:24,387 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:24" (1/1) ... [2024-10-11 23:59:24,390 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:24" (1/1) ... [2024-10-11 23:59:24,414 INFO L175 MemorySlicer]: Split 35 memory accesses to 4 slices as follows [2, 2, 5, 26]. 74 percent of accesses are in the largest equivalence class. The 23 initializations are split as follows [2, 0, 5, 16]. The 5 writes are split as follows [0, 1, 0, 4]. [2024-10-11 23:59:24,417 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:24" (1/1) ... [2024-10-11 23:59:24,417 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:24" (1/1) ... [2024-10-11 23:59:24,430 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:24" (1/1) ... [2024-10-11 23:59:24,436 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:24" (1/1) ... [2024-10-11 23:59:24,439 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:24" (1/1) ... [2024-10-11 23:59:24,440 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:24" (1/1) ... [2024-10-11 23:59:24,443 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 23:59:24,444 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 23:59:24,445 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 23:59:24,445 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 23:59:24,446 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:24" (1/1) ... [2024-10-11 23:59:24,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 23:59:24,474 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:59:24,495 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 23:59:24,497 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 23:59:24,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 23:59:24,542 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 23:59:24,542 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-11 23:59:24,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 23:59:24,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 23:59:24,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 23:59:24,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-11 23:59:24,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 23:59:24,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 23:59:24,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 23:59:24,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-11 23:59:24,545 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-11 23:59:24,545 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 23:59:24,545 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-11 23:59:24,545 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-11 23:59:24,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 23:59:24,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 23:59:24,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 23:59:24,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 23:59:24,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 23:59:24,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 23:59:24,548 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 23:59:24,712 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 23:59:24,714 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 23:59:25,057 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-11 23:59:25,057 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 23:59:25,261 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 23:59:25,261 INFO L314 CfgBuilder]: Removed 22 assume(true) statements. [2024-10-11 23:59:25,262 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:59:25 BoogieIcfgContainer [2024-10-11 23:59:25,262 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 23:59:25,263 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 23:59:25,263 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 23:59:25,266 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 23:59:25,266 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 11:59:23" (1/3) ... [2024-10-11 23:59:25,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a9f33d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:59:25, skipping insertion in model container [2024-10-11 23:59:25,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 11:59:24" (2/3) ... [2024-10-11 23:59:25,267 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69a9f33d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 11:59:25, skipping insertion in model container [2024-10-11 23:59:25,267 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 11:59:25" (3/3) ... [2024-10-11 23:59:25,268 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_78-equ_racing.i [2024-10-11 23:59:25,282 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 23:59:25,282 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-10-11 23:59:25,282 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-11 23:59:25,330 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-11 23:59:25,360 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 97 places, 119 transitions, 245 flow [2024-10-11 23:59:25,395 INFO L124 PetriNetUnfolderBase]: 36/167 cut-off events. [2024-10-11 23:59:25,395 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-11 23:59:25,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 172 conditions, 167 events. 36/167 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 621 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 97. Up to 8 conditions per place. [2024-10-11 23:59:25,400 INFO L82 GeneralOperation]: Start removeDead. Operand has 97 places, 119 transitions, 245 flow [2024-10-11 23:59:25,405 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 97 places, 117 transitions, 241 flow [2024-10-11 23:59:25,415 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 23:59:25,421 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;@71255a7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 23:59:25,421 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-10-11 23:59:25,426 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 23:59:25,427 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-10-11 23:59:25,427 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 23:59:25,427 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:25,428 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-11 23:59:25,428 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-10-11 23:59:25,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:25,433 INFO L85 PathProgramCache]: Analyzing trace with hash 19837048, now seen corresponding path program 1 times [2024-10-11 23:59:25,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:25,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523200877] [2024-10-11 23:59:25,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:25,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:25,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:25,713 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 23:59:25,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:25,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523200877] [2024-10-11 23:59:25,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523200877] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:59:25,714 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:59:25,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:59:25,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1943620772] [2024-10-11 23:59:25,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:59:25,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:59:25,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:25,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:59:25,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:59:25,762 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 119 [2024-10-11 23:59:25,765 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 117 transitions, 241 flow. Second operand has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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 23:59:25,765 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:25,765 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 119 [2024-10-11 23:59:25,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:26,197 INFO L124 PetriNetUnfolderBase]: 869/2697 cut-off events. [2024-10-11 23:59:26,197 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-10-11 23:59:26,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4429 conditions, 2697 events. 869/2697 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 21744 event pairs, 748 based on Foata normal form. 534/2910 useless extension candidates. Maximal degree in co-relation 2148. Up to 888 conditions per place. [2024-10-11 23:59:26,216 INFO L140 encePairwiseOnDemand]: 93/119 looper letters, 88 selfloop transitions, 5 changer transitions 0/139 dead transitions. [2024-10-11 23:59:26,216 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 139 transitions, 477 flow [2024-10-11 23:59:26,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:59:26,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:59:26,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 318 transitions. [2024-10-11 23:59:26,227 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6680672268907563 [2024-10-11 23:59:26,262 INFO L175 Difference]: Start difference. First operand has 97 places, 117 transitions, 241 flow. Second operand 4 states and 318 transitions. [2024-10-11 23:59:26,263 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 139 transitions, 477 flow [2024-10-11 23:59:26,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 139 transitions, 477 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 23:59:26,269 INFO L231 Difference]: Finished difference. Result has 100 places, 97 transitions, 218 flow [2024-10-11 23:59:26,271 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=199, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=218, PETRI_PLACES=100, PETRI_TRANSITIONS=97} [2024-10-11 23:59:26,274 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, 3 predicate places. [2024-10-11 23:59:26,274 INFO L471 AbstractCegarLoop]: Abstraction has has 100 places, 97 transitions, 218 flow [2024-10-11 23:59:26,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.0) internal successors, (188), 4 states have internal predecessors, (188), 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 23:59:26,275 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:26,275 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-11 23:59:26,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 23:59:26,275 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-10-11 23:59:26,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:26,276 INFO L85 PathProgramCache]: Analyzing trace with hash 19837038, now seen corresponding path program 1 times [2024-10-11 23:59:26,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:26,276 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510565462] [2024-10-11 23:59:26,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:26,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:26,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:26,343 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 23:59:26,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:26,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510565462] [2024-10-11 23:59:26,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510565462] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:59:26,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:59:26,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:59:26,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539291734] [2024-10-11 23:59:26,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:59:26,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 23:59:26,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:26,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 23:59:26,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 23:59:26,351 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 119 [2024-10-11 23:59:26,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 97 transitions, 218 flow. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 23:59:26,353 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:26,353 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 119 [2024-10-11 23:59:26,353 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:26,661 INFO L124 PetriNetUnfolderBase]: 869/2703 cut-off events. [2024-10-11 23:59:26,661 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-10-11 23:59:26,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4500 conditions, 2703 events. 869/2703 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 21813 event pairs, 765 based on Foata normal form. 1/2384 useless extension candidates. Maximal degree in co-relation 2248. Up to 1722 conditions per place. [2024-10-11 23:59:26,674 INFO L140 encePairwiseOnDemand]: 116/119 looper letters, 49 selfloop transitions, 2 changer transitions 0/96 dead transitions. [2024-10-11 23:59:26,675 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 96 transitions, 318 flow [2024-10-11 23:59:26,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 23:59:26,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 23:59:26,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 189 transitions. [2024-10-11 23:59:26,678 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5294117647058824 [2024-10-11 23:59:26,678 INFO L175 Difference]: Start difference. First operand has 100 places, 97 transitions, 218 flow. Second operand 3 states and 189 transitions. [2024-10-11 23:59:26,678 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 96 transitions, 318 flow [2024-10-11 23:59:26,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 96 transitions, 313 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 23:59:26,682 INFO L231 Difference]: Finished difference. Result has 99 places, 96 transitions, 215 flow [2024-10-11 23:59:26,683 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=211, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=215, PETRI_PLACES=99, PETRI_TRANSITIONS=96} [2024-10-11 23:59:26,683 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, 2 predicate places. [2024-10-11 23:59:26,683 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 96 transitions, 215 flow [2024-10-11 23:59:26,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 23:59:26,684 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:26,684 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-11 23:59:26,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 23:59:26,685 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-10-11 23:59:26,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:26,685 INFO L85 PathProgramCache]: Analyzing trace with hash 614948814, now seen corresponding path program 1 times [2024-10-11 23:59:26,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:26,686 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083056552] [2024-10-11 23:59:26,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:26,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:26,726 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 23:59:26,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:26,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083056552] [2024-10-11 23:59:26,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083056552] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:59:26,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:59:26,727 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:59:26,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [906124103] [2024-10-11 23:59:26,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:59:26,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 23:59:26,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:26,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 23:59:26,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 23:59:26,731 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 119 [2024-10-11 23:59:26,732 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 96 transitions, 215 flow. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 23:59:26,732 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:26,732 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 119 [2024-10-11 23:59:26,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:27,018 INFO L124 PetriNetUnfolderBase]: 869/2702 cut-off events. [2024-10-11 23:59:27,019 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-10-11 23:59:27,022 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4479 conditions, 2702 events. 869/2702 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 21828 event pairs, 765 based on Foata normal form. 1/2383 useless extension candidates. Maximal degree in co-relation 2261. Up to 1722 conditions per place. [2024-10-11 23:59:27,030 INFO L140 encePairwiseOnDemand]: 116/119 looper letters, 48 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2024-10-11 23:59:27,030 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 95 transitions, 313 flow [2024-10-11 23:59:27,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 23:59:27,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 23:59:27,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 188 transitions. [2024-10-11 23:59:27,032 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5266106442577031 [2024-10-11 23:59:27,032 INFO L175 Difference]: Start difference. First operand has 99 places, 96 transitions, 215 flow. Second operand 3 states and 188 transitions. [2024-10-11 23:59:27,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 95 transitions, 313 flow [2024-10-11 23:59:27,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 95 transitions, 309 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 23:59:27,037 INFO L231 Difference]: Finished difference. Result has 98 places, 95 transitions, 213 flow [2024-10-11 23:59:27,037 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=209, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=213, PETRI_PLACES=98, PETRI_TRANSITIONS=95} [2024-10-11 23:59:27,038 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, 1 predicate places. [2024-10-11 23:59:27,038 INFO L471 AbstractCegarLoop]: Abstraction has has 98 places, 95 transitions, 213 flow [2024-10-11 23:59:27,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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 23:59:27,039 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:27,039 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-11 23:59:27,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-11 23:59:27,039 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-10-11 23:59:27,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:27,040 INFO L85 PathProgramCache]: Analyzing trace with hash 614949191, now seen corresponding path program 1 times [2024-10-11 23:59:27,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:27,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1803882498] [2024-10-11 23:59:27,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:27,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:27,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:27,102 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 23:59:27,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:27,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1803882498] [2024-10-11 23:59:27,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1803882498] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:59:27,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:59:27,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 23:59:27,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716294185] [2024-10-11 23:59:27,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:59:27,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 23:59:27,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:27,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 23:59:27,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 23:59:27,111 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 46 out of 119 [2024-10-11 23:59:27,111 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 98 places, 95 transitions, 213 flow. Second operand has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 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 23:59:27,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:27,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 46 of 119 [2024-10-11 23:59:27,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:27,388 INFO L124 PetriNetUnfolderBase]: 869/2694 cut-off events. [2024-10-11 23:59:27,388 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-10-11 23:59:27,391 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4471 conditions, 2694 events. 869/2694 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 21756 event pairs, 748 based on Foata normal form. 1/2376 useless extension candidates. Maximal degree in co-relation 2253. Up to 1663 conditions per place. [2024-10-11 23:59:27,400 INFO L140 encePairwiseOnDemand]: 112/119 looper letters, 52 selfloop transitions, 7 changer transitions 8/111 dead transitions. [2024-10-11 23:59:27,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 111 transitions, 379 flow [2024-10-11 23:59:27,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 23:59:27,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 23:59:27,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 297 transitions. [2024-10-11 23:59:27,403 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4991596638655462 [2024-10-11 23:59:27,403 INFO L175 Difference]: Start difference. First operand has 98 places, 95 transitions, 213 flow. Second operand 5 states and 297 transitions. [2024-10-11 23:59:27,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 111 transitions, 379 flow [2024-10-11 23:59:27,406 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 111 transitions, 375 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 23:59:27,408 INFO L231 Difference]: Finished difference. Result has 99 places, 94 transitions, 221 flow [2024-10-11 23:59:27,408 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=221, PETRI_PLACES=99, PETRI_TRANSITIONS=94} [2024-10-11 23:59:27,409 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, 2 predicate places. [2024-10-11 23:59:27,410 INFO L471 AbstractCegarLoop]: Abstraction has has 99 places, 94 transitions, 221 flow [2024-10-11 23:59:27,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 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 23:59:27,410 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:27,410 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:59:27,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-11 23:59:27,411 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-10-11 23:59:27,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:27,412 INFO L85 PathProgramCache]: Analyzing trace with hash -835197098, now seen corresponding path program 1 times [2024-10-11 23:59:27,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:27,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438367376] [2024-10-11 23:59:27,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:27,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:27,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:27,500 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 23:59:27,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:27,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438367376] [2024-10-11 23:59:27,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438367376] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:59:27,502 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:59:27,502 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 23:59:27,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719898668] [2024-10-11 23:59:27,502 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:59:27,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:59:27,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:27,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:59:27,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:59:27,513 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 119 [2024-10-11 23:59:27,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 94 transitions, 221 flow. Second operand has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 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 23:59:27,514 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:27,514 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 119 [2024-10-11 23:59:27,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:27,754 INFO L124 PetriNetUnfolderBase]: 855/2371 cut-off events. [2024-10-11 23:59:27,754 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-10-11 23:59:27,758 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4178 conditions, 2371 events. 855/2371 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 18486 event pairs, 86 based on Foata normal form. 36/2174 useless extension candidates. Maximal degree in co-relation 2061. Up to 1606 conditions per place. [2024-10-11 23:59:27,767 INFO L140 encePairwiseOnDemand]: 113/119 looper letters, 83 selfloop transitions, 3 changer transitions 0/127 dead transitions. [2024-10-11 23:59:27,767 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 100 places, 127 transitions, 459 flow [2024-10-11 23:59:27,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:59:27,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:59:27,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 268 transitions. [2024-10-11 23:59:27,769 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5630252100840336 [2024-10-11 23:59:27,769 INFO L175 Difference]: Start difference. First operand has 99 places, 94 transitions, 221 flow. Second operand 4 states and 268 transitions. [2024-10-11 23:59:27,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 100 places, 127 transitions, 459 flow [2024-10-11 23:59:27,770 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 127 transitions, 445 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-11 23:59:27,772 INFO L231 Difference]: Finished difference. Result has 97 places, 92 transitions, 213 flow [2024-10-11 23:59:27,772 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=119, PETRI_DIFFERENCE_MINUEND_FLOW=203, PETRI_DIFFERENCE_MINUEND_PLACES=93, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=213, PETRI_PLACES=97, PETRI_TRANSITIONS=92} [2024-10-11 23:59:27,773 INFO L277 CegarLoopForPetriNet]: 97 programPoint places, 0 predicate places. [2024-10-11 23:59:27,773 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 92 transitions, 213 flow [2024-10-11 23:59:27,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.25) internal successors, (189), 4 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 23:59:27,773 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:27,773 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:59:27,773 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-11 23:59:27,774 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-10-11 23:59:27,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:27,774 INFO L85 PathProgramCache]: Analyzing trace with hash -2099974910, now seen corresponding path program 1 times [2024-10-11 23:59:27,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:27,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151712377] [2024-10-11 23:59:27,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:27,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:27,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 23:59:27,798 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-11 23:59:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-11 23:59:27,839 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-11 23:59:27,840 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-10-11 23:59:27,842 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-10-11 23:59:27,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2024-10-11 23:59:27,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2024-10-11 23:59:27,844 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2024-10-11 23:59:27,844 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2024-10-11 23:59:27,844 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2024-10-11 23:59:27,844 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2024-10-11 23:59:27,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2024-10-11 23:59:27,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2024-10-11 23:59:27,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2024-10-11 23:59:27,845 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2024-10-11 23:59:27,846 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2024-10-11 23:59:27,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2024-10-11 23:59:27,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2024-10-11 23:59:27,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2024-10-11 23:59:27,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2024-10-11 23:59:27,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2024-10-11 23:59:27,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2024-10-11 23:59:27,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2024-10-11 23:59:27,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2024-10-11 23:59:27,848 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2024-10-11 23:59:27,848 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-11 23:59:27,849 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-10-11 23:59:27,853 WARN L239 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-10-11 23:59:27,853 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-10-11 23:59:27,883 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-10-11 23:59:27,890 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 133 places, 165 transitions, 346 flow [2024-10-11 23:59:27,908 INFO L124 PetriNetUnfolderBase]: 60/281 cut-off events. [2024-10-11 23:59:27,909 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-10-11 23:59:27,911 INFO L83 FinitePrefix]: Finished finitePrefix Result has 293 conditions, 281 events. 60/281 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1244 event pairs, 0 based on Foata normal form. 0/183 useless extension candidates. Maximal degree in co-relation 169. Up to 12 conditions per place. [2024-10-11 23:59:27,911 INFO L82 GeneralOperation]: Start removeDead. Operand has 133 places, 165 transitions, 346 flow [2024-10-11 23:59:27,914 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 133 places, 164 transitions, 344 flow [2024-10-11 23:59:27,914 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 23:59:27,915 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;@71255a7e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 23:59:27,915 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-10-11 23:59:27,916 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-11 23:59:27,916 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2024-10-11 23:59:27,916 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-11 23:59:27,916 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:27,916 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-11 23:59:27,916 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-10-11 23:59:27,917 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:27,917 INFO L85 PathProgramCache]: Analyzing trace with hash 24916408, now seen corresponding path program 1 times [2024-10-11 23:59:27,917 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:27,917 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151626481] [2024-10-11 23:59:27,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:27,918 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:27,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:27,963 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 23:59:27,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:27,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151626481] [2024-10-11 23:59:27,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151626481] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:59:27,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:59:27,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:59:27,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167850391] [2024-10-11 23:59:27,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:59:27,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:59:27,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:27,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:59:27,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:59:27,973 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 165 [2024-10-11 23:59:27,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 164 transitions, 344 flow. Second operand has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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 23:59:27,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:27,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 165 [2024-10-11 23:59:27,974 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:32,562 INFO L124 PetriNetUnfolderBase]: 31927/68045 cut-off events. [2024-10-11 23:59:32,562 INFO L125 PetriNetUnfolderBase]: For 214/214 co-relation queries the response was YES. [2024-10-11 23:59:32,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115780 conditions, 68045 events. 31927/68045 cut-off events. For 214/214 co-relation queries the response was YES. Maximal size of possible extension queue 2037. Compared 762676 event pairs, 28458 based on Foata normal form. 15650/76272 useless extension candidates. Maximal degree in co-relation 50042. Up to 24466 conditions per place. [2024-10-11 23:59:32,964 INFO L140 encePairwiseOnDemand]: 129/165 looper letters, 128 selfloop transitions, 5 changer transitions 0/196 dead transitions. [2024-10-11 23:59:32,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 196 transitions, 688 flow [2024-10-11 23:59:32,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:59:32,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:59:32,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 446 transitions. [2024-10-11 23:59:32,967 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6757575757575758 [2024-10-11 23:59:32,967 INFO L175 Difference]: Start difference. First operand has 133 places, 164 transitions, 344 flow. Second operand 4 states and 446 transitions. [2024-10-11 23:59:32,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 196 transitions, 688 flow [2024-10-11 23:59:32,969 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 196 transitions, 688 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-11 23:59:32,972 INFO L231 Difference]: Finished difference. Result has 136 places, 134 transitions, 301 flow [2024-10-11 23:59:32,973 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=301, PETRI_PLACES=136, PETRI_TRANSITIONS=134} [2024-10-11 23:59:32,975 INFO L277 CegarLoopForPetriNet]: 133 programPoint places, 3 predicate places. [2024-10-11 23:59:32,975 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 134 transitions, 301 flow [2024-10-11 23:59:32,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.0) internal successors, (256), 4 states have internal predecessors, (256), 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 23:59:32,977 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:32,977 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-11 23:59:32,977 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-11 23:59:32,977 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-10-11 23:59:32,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:32,978 INFO L85 PathProgramCache]: Analyzing trace with hash 24916398, now seen corresponding path program 1 times [2024-10-11 23:59:32,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:32,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097949812] [2024-10-11 23:59:32,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:32,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:32,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:33,001 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 23:59:33,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:33,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097949812] [2024-10-11 23:59:33,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097949812] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:59:33,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:59:33,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:59:33,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279629731] [2024-10-11 23:59:33,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:59:33,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 23:59:33,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:33,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 23:59:33,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 23:59:33,007 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 165 [2024-10-11 23:59:33,007 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 134 transitions, 301 flow. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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 23:59:33,008 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:33,008 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 165 [2024-10-11 23:59:33,008 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:37,057 INFO L124 PetriNetUnfolderBase]: 31941/68321 cut-off events. [2024-10-11 23:59:37,058 INFO L125 PetriNetUnfolderBase]: For 650/650 co-relation queries the response was YES. [2024-10-11 23:59:37,215 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117161 conditions, 68321 events. 31941/68321 cut-off events. For 650/650 co-relation queries the response was YES. Maximal size of possible extension queue 2037. Compared 767780 event pairs, 29104 based on Foata normal form. 1/60783 useless extension candidates. Maximal degree in co-relation 57570. Up to 47556 conditions per place. [2024-10-11 23:59:37,438 INFO L140 encePairwiseOnDemand]: 162/165 looper letters, 69 selfloop transitions, 2 changer transitions 0/133 dead transitions. [2024-10-11 23:59:37,438 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 133 transitions, 441 flow [2024-10-11 23:59:37,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 23:59:37,439 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 23:59:37,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 260 transitions. [2024-10-11 23:59:37,441 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5252525252525253 [2024-10-11 23:59:37,444 INFO L175 Difference]: Start difference. First operand has 136 places, 134 transitions, 301 flow. Second operand 3 states and 260 transitions. [2024-10-11 23:59:37,444 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 133 transitions, 441 flow [2024-10-11 23:59:37,446 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 133 transitions, 436 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 23:59:37,447 INFO L231 Difference]: Finished difference. Result has 135 places, 133 transitions, 298 flow [2024-10-11 23:59:37,447 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=135, PETRI_TRANSITIONS=133} [2024-10-11 23:59:37,448 INFO L277 CegarLoopForPetriNet]: 133 programPoint places, 2 predicate places. [2024-10-11 23:59:37,448 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 133 transitions, 298 flow [2024-10-11 23:59:37,448 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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 23:59:37,448 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:37,451 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-11 23:59:37,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-11 23:59:37,451 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-10-11 23:59:37,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:37,452 INFO L85 PathProgramCache]: Analyzing trace with hash 772409516, now seen corresponding path program 1 times [2024-10-11 23:59:37,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:37,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791129791] [2024-10-11 23:59:37,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:37,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:37,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:37,502 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 23:59:37,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:37,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791129791] [2024-10-11 23:59:37,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791129791] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:59:37,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:59:37,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 23:59:37,503 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058827774] [2024-10-11 23:59:37,503 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:59:37,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 23:59:37,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:37,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 23:59:37,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-10-11 23:59:37,509 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 165 [2024-10-11 23:59:37,510 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 133 transitions, 298 flow. Second operand has 5 states, 5 states have (on average 63.8) internal successors, (319), 5 states have internal predecessors, (319), 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 23:59:37,510 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:37,510 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 165 [2024-10-11 23:59:37,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:41,919 INFO L124 PetriNetUnfolderBase]: 31927/68043 cut-off events. [2024-10-11 23:59:41,920 INFO L125 PetriNetUnfolderBase]: For 650/650 co-relation queries the response was YES. [2024-10-11 23:59:42,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 116507 conditions, 68043 events. 31927/68043 cut-off events. For 650/650 co-relation queries the response was YES. Maximal size of possible extension queue 2040. Compared 762919 event pairs, 28458 based on Foata normal form. 1/60566 useless extension candidates. Maximal degree in co-relation 58910. Up to 46147 conditions per place. [2024-10-11 23:59:42,294 INFO L140 encePairwiseOnDemand]: 158/165 looper letters, 97 selfloop transitions, 7 changer transitions 0/166 dead transitions. [2024-10-11 23:59:42,294 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 166 transitions, 572 flow [2024-10-11 23:59:42,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 23:59:42,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-10-11 23:59:42,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 419 transitions. [2024-10-11 23:59:42,296 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5078787878787879 [2024-10-11 23:59:42,296 INFO L175 Difference]: Start difference. First operand has 135 places, 133 transitions, 298 flow. Second operand 5 states and 419 transitions. [2024-10-11 23:59:42,296 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 166 transitions, 572 flow [2024-10-11 23:59:42,299 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 166 transitions, 568 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 23:59:42,300 INFO L231 Difference]: Finished difference. Result has 136 places, 132 transitions, 306 flow [2024-10-11 23:59:42,301 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=132, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=306, PETRI_PLACES=136, PETRI_TRANSITIONS=132} [2024-10-11 23:59:42,301 INFO L277 CegarLoopForPetriNet]: 133 programPoint places, 3 predicate places. [2024-10-11 23:59:42,301 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 132 transitions, 306 flow [2024-10-11 23:59:42,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 63.8) internal successors, (319), 5 states have internal predecessors, (319), 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 23:59:42,301 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:42,301 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-10-11 23:59:42,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-11 23:59:42,302 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-10-11 23:59:42,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:42,302 INFO L85 PathProgramCache]: Analyzing trace with hash 772409139, now seen corresponding path program 1 times [2024-10-11 23:59:42,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:42,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587495656] [2024-10-11 23:59:42,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:42,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:42,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:42,326 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 23:59:42,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:42,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587495656] [2024-10-11 23:59:42,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587495656] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:59:42,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:59:42,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 23:59:42,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471519014] [2024-10-11 23:59:42,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:59:42,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 23:59:42,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:42,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 23:59:42,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 23:59:42,331 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 165 [2024-10-11 23:59:42,332 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 132 transitions, 306 flow. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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 23:59:42,332 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:42,332 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 165 [2024-10-11 23:59:42,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:46,385 INFO L124 PetriNetUnfolderBase]: 31941/68319 cut-off events. [2024-10-11 23:59:46,385 INFO L125 PetriNetUnfolderBase]: For 1806/1806 co-relation queries the response was YES. [2024-10-11 23:59:46,554 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117522 conditions, 68319 events. 31941/68319 cut-off events. For 1806/1806 co-relation queries the response was YES. Maximal size of possible extension queue 2040. Compared 767721 event pairs, 29104 based on Foata normal form. 1/60781 useless extension candidates. Maximal degree in co-relation 56487. Up to 47556 conditions per place. [2024-10-11 23:59:46,757 INFO L140 encePairwiseOnDemand]: 162/165 looper letters, 68 selfloop transitions, 2 changer transitions 0/131 dead transitions. [2024-10-11 23:59:46,757 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 131 transitions, 444 flow [2024-10-11 23:59:46,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 23:59:46,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-11 23:59:46,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 259 transitions. [2024-10-11 23:59:46,759 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5232323232323233 [2024-10-11 23:59:46,759 INFO L175 Difference]: Start difference. First operand has 136 places, 132 transitions, 306 flow. Second operand 3 states and 259 transitions. [2024-10-11 23:59:46,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 131 transitions, 444 flow [2024-10-11 23:59:46,777 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 133 places, 131 transitions, 430 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-10-11 23:59:46,778 INFO L231 Difference]: Finished difference. Result has 133 places, 131 transitions, 294 flow [2024-10-11 23:59:46,778 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=129, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=294, PETRI_PLACES=133, PETRI_TRANSITIONS=131} [2024-10-11 23:59:46,779 INFO L277 CegarLoopForPetriNet]: 133 programPoint places, 0 predicate places. [2024-10-11 23:59:46,779 INFO L471 AbstractCegarLoop]: Abstraction has has 133 places, 131 transitions, 294 flow [2024-10-11 23:59:46,779 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 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 23:59:46,779 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:46,779 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:59:46,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-11 23:59:46,780 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-10-11 23:59:46,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:46,780 INFO L85 PathProgramCache]: Analyzing trace with hash 19030946, now seen corresponding path program 1 times [2024-10-11 23:59:46,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:46,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109906735] [2024-10-11 23:59:46,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:46,781 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:46,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:46,821 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 23:59:46,821 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:46,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109906735] [2024-10-11 23:59:46,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109906735] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:59:46,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:59:46,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 23:59:46,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219274304] [2024-10-11 23:59:46,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:59:46,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:59:46,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:46,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:59:46,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:59:46,830 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-10-11 23:59:46,831 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 133 places, 131 transitions, 294 flow. Second operand has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 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 23:59:46,831 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:46,831 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-10-11 23:59:46,831 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:51,280 INFO L124 PetriNetUnfolderBase]: 34860/71229 cut-off events. [2024-10-11 23:59:51,280 INFO L125 PetriNetUnfolderBase]: For 382/382 co-relation queries the response was YES. [2024-10-11 23:59:51,458 INFO L83 FinitePrefix]: Finished finitePrefix Result has 124394 conditions, 71229 events. 34860/71229 cut-off events. For 382/382 co-relation queries the response was YES. Maximal size of possible extension queue 2005. Compared 778634 event pairs, 17757 based on Foata normal form. 36/63417 useless extension candidates. Maximal degree in co-relation 62924. Up to 52134 conditions per place. [2024-10-11 23:59:51,695 INFO L140 encePairwiseOnDemand]: 159/165 looper letters, 107 selfloop transitions, 3 changer transitions 0/168 dead transitions. [2024-10-11 23:59:51,695 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 168 transitions, 588 flow [2024-10-11 23:59:51,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-11 23:59:51,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-11 23:59:51,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 360 transitions. [2024-10-11 23:59:51,697 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5454545454545454 [2024-10-11 23:59:51,697 INFO L175 Difference]: Start difference. First operand has 133 places, 131 transitions, 294 flow. Second operand 4 states and 360 transitions. [2024-10-11 23:59:51,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 168 transitions, 588 flow [2024-10-11 23:59:51,699 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 168 transitions, 584 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-11 23:59:51,700 INFO L231 Difference]: Finished difference. Result has 136 places, 133 transitions, 314 flow [2024-10-11 23:59:51,701 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=290, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=314, PETRI_PLACES=136, PETRI_TRANSITIONS=133} [2024-10-11 23:59:51,701 INFO L277 CegarLoopForPetriNet]: 133 programPoint places, 3 predicate places. [2024-10-11 23:59:51,701 INFO L471 AbstractCegarLoop]: Abstraction has has 136 places, 133 transitions, 314 flow [2024-10-11 23:59:51,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 64.25) internal successors, (257), 4 states have internal predecessors, (257), 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 23:59:51,702 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:51,702 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:59:51,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-11 23:59:51,702 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-10-11 23:59:51,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:51,702 INFO L85 PathProgramCache]: Analyzing trace with hash -1720719874, now seen corresponding path program 1 times [2024-10-11 23:59:51,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:51,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1184178729] [2024-10-11 23:59:51,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:51,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:51,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:51,772 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 23:59:51,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:51,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1184178729] [2024-10-11 23:59:51,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1184178729] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 23:59:51,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1954771004] [2024-10-11 23:59:51,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:51,773 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 23:59:51,773 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 23:59:51,777 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 23:59:51,781 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 23:59:51,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:51,866 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 23:59:51,868 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 23:59:51,950 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 23:59:51,950 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 23:59:51,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1954771004] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:59:51,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 23:59:51,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-10-11 23:59:51,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213933530] [2024-10-11 23:59:51,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:59:51,951 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 23:59:51,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:51,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 23:59:51,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-10-11 23:59:51,968 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-10-11 23:59:51,969 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 133 transitions, 314 flow. Second operand has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 6 states have internal predecessors, (385), 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 23:59:51,971 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:51,971 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-10-11 23:59:51,971 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-11 23:59:56,553 INFO L124 PetriNetUnfolderBase]: 33885/66552 cut-off events. [2024-10-11 23:59:56,553 INFO L125 PetriNetUnfolderBase]: For 2284/2284 co-relation queries the response was YES. [2024-10-11 23:59:56,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 121134 conditions, 66552 events. 33885/66552 cut-off events. For 2284/2284 co-relation queries the response was YES. Maximal size of possible extension queue 1916. Compared 703613 event pairs, 4856 based on Foata normal form. 648/61454 useless extension candidates. Maximal degree in co-relation 58765. Up to 41665 conditions per place. [2024-10-11 23:59:56,996 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 171 selfloop transitions, 6 changer transitions 0/235 dead transitions. [2024-10-11 23:59:56,996 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 235 transitions, 870 flow [2024-10-11 23:59:56,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 23:59:56,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-10-11 23:59:56,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 549 transitions. [2024-10-11 23:59:56,998 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5545454545454546 [2024-10-11 23:59:56,998 INFO L175 Difference]: Start difference. First operand has 136 places, 133 transitions, 314 flow. Second operand 6 states and 549 transitions. [2024-10-11 23:59:56,998 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 235 transitions, 870 flow [2024-10-11 23:59:57,004 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 235 transitions, 868 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-11 23:59:57,006 INFO L231 Difference]: Finished difference. Result has 139 places, 132 transitions, 320 flow [2024-10-11 23:59:57,006 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=320, PETRI_PLACES=139, PETRI_TRANSITIONS=132} [2024-10-11 23:59:57,007 INFO L277 CegarLoopForPetriNet]: 133 programPoint places, 6 predicate places. [2024-10-11 23:59:57,007 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 132 transitions, 320 flow [2024-10-11 23:59:57,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 6 states have internal predecessors, (385), 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 23:59:57,007 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-11 23:59:57,007 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 23:59:57,026 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 23:59:57,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-11 23:59:57,349 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-10-11 23:59:57,349 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 23:59:57,349 INFO L85 PathProgramCache]: Analyzing trace with hash -1802707678, now seen corresponding path program 1 times [2024-10-11 23:59:57,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 23:59:57,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137343654] [2024-10-11 23:59:57,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 23:59:57,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 23:59:57,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 23:59:57,400 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-11 23:59:57,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 23:59:57,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137343654] [2024-10-11 23:59:57,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2137343654] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 23:59:57,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 23:59:57,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 23:59:57,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274041076] [2024-10-11 23:59:57,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 23:59:57,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 23:59:57,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 23:59:57,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 23:59:57,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 23:59:57,408 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 165 [2024-10-11 23:59:57,409 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 132 transitions, 320 flow. Second operand has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 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 23:59:57,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-11 23:59:57,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 165 [2024-10-11 23:59:57,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:00:01,409 INFO L124 PetriNetUnfolderBase]: 32405/62140 cut-off events. [2024-10-12 00:00:01,410 INFO L125 PetriNetUnfolderBase]: For 5048/5048 co-relation queries the response was YES. [2024-10-12 00:00:01,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115826 conditions, 62140 events. 32405/62140 cut-off events. For 5048/5048 co-relation queries the response was YES. Maximal size of possible extension queue 1845. Compared 645391 event pairs, 1870 based on Foata normal form. 648/57808 useless extension candidates. Maximal degree in co-relation 56153. Up to 43329 conditions per place. [2024-10-12 00:00:01,891 INFO L140 encePairwiseOnDemand]: 160/165 looper letters, 136 selfloop transitions, 6 changer transitions 0/200 dead transitions. [2024-10-12 00:00:01,891 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 200 transitions, 738 flow [2024-10-12 00:00:01,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:00:01,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:00:01,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 388 transitions. [2024-10-12 00:00:01,893 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5878787878787879 [2024-10-12 00:00:01,893 INFO L175 Difference]: Start difference. First operand has 139 places, 132 transitions, 320 flow. Second operand 4 states and 388 transitions. [2024-10-12 00:00:01,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 200 transitions, 738 flow [2024-10-12 00:00:01,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 200 transitions, 722 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-10-12 00:00:01,948 INFO L231 Difference]: Finished difference. Result has 137 places, 132 transitions, 320 flow [2024-10-12 00:00:01,949 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=300, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=131, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=320, PETRI_PLACES=137, PETRI_TRANSITIONS=132} [2024-10-12 00:00:01,949 INFO L277 CegarLoopForPetriNet]: 133 programPoint places, 4 predicate places. [2024-10-12 00:00:01,951 INFO L471 AbstractCegarLoop]: Abstraction has has 137 places, 132 transitions, 320 flow [2024-10-12 00:00:01,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 65.25) internal successors, (261), 4 states have internal predecessors, (261), 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) [2024-10-12 00:00:01,951 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:00:01,951 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:00:01,951 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-12 00:00:01,952 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-10-12 00:00:01,952 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:00:01,952 INFO L85 PathProgramCache]: Analyzing trace with hash 1952899514, now seen corresponding path program 1 times [2024-10-12 00:00:01,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:00:01,953 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972904851] [2024-10-12 00:00:01,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:00:01,953 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:00:01,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:00:02,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:00:02,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:00:02,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972904851] [2024-10-12 00:00:02,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1972904851] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:00:02,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:00:02,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:00:02,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009182816] [2024-10-12 00:00:02,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:00:02,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:00:02,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:00:02,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:00:02,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:00:02,079 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 165 [2024-10-12 00:00:02,080 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 132 transitions, 320 flow. Second operand has 4 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 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) [2024-10-12 00:00:02,080 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:00:02,080 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 165 [2024-10-12 00:00:02,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand