./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_19-callback_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_19-callback_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a178b12ba1b75e8e390c539a1b1599b5e56cbe73098e0c8e7ca0eeb62a619e80 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 20:38:44,482 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 20:38:44,540 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-12 20:38:44,546 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 20:38:44,547 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 20:38:44,572 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 20:38:44,572 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 20:38:44,573 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 20:38:44,573 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 20:38:44,574 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 20:38:44,574 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 20:38:44,574 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 20:38:44,574 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 20:38:44,575 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 20:38:44,575 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 20:38:44,575 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 20:38:44,576 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 20:38:44,576 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 20:38:44,576 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 20:38:44,576 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 20:38:44,577 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 20:38:44,581 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 20:38:44,581 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 20:38:44,581 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 20:38:44,581 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 20:38:44,583 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 20:38:44,583 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 20:38:44,583 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 20:38:44,583 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 20:38:44,583 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 20:38:44,583 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 20:38:44,584 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 20:38:44,584 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 20:38:44,584 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 20:38:44,584 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:38:44,584 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 20:38:44,584 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 20:38:44,585 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 20:38:44,585 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 20:38:44,585 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 20:38:44,585 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 20:38:44,588 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 20:38:44,588 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 20:38:44,589 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 20:38:44,589 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a178b12ba1b75e8e390c539a1b1599b5e56cbe73098e0c8e7ca0eeb62a619e80 [2024-11-12 20:38:44,820 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 20:38:44,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 20:38:44,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 20:38:44,848 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 20:38:44,849 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 20:38:44,850 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_19-callback_racing.i [2024-11-12 20:38:46,185 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 20:38:46,389 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 20:38:46,389 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_19-callback_racing.i [2024-11-12 20:38:46,408 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e38820111/a3f07c7f9a3641b994d5028d109db994/FLAG401b3567b [2024-11-12 20:38:46,421 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e38820111/a3f07c7f9a3641b994d5028d109db994 [2024-11-12 20:38:46,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 20:38:46,424 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 20:38:46,426 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 20:38:46,426 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 20:38:46,430 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 20:38:46,431 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:38:46" (1/1) ... [2024-11-12 20:38:46,432 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4da20b6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:46, skipping insertion in model container [2024-11-12 20:38:46,432 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:38:46" (1/1) ... [2024-11-12 20:38:46,467 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 20:38:46,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:38:46,835 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 20:38:46,878 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:38:46,975 INFO L204 MainTranslator]: Completed translation [2024-11-12 20:38:46,975 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:46 WrapperNode [2024-11-12 20:38:46,975 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 20:38:46,983 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 20:38:46,984 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 20:38:46,984 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 20:38:47,006 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:46" (1/1) ... [2024-11-12 20:38:47,020 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:46" (1/1) ... [2024-11-12 20:38:47,048 INFO L138 Inliner]: procedures = 174, calls = 45, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 159 [2024-11-12 20:38:47,048 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 20:38:47,049 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 20:38:47,049 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 20:38:47,049 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 20:38:47,059 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:46" (1/1) ... [2024-11-12 20:38:47,059 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:46" (1/1) ... [2024-11-12 20:38:47,063 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:46" (1/1) ... [2024-11-12 20:38:47,080 INFO L175 MemorySlicer]: Split 19 memory accesses to 5 slices as follows [2, 5, 5, 5, 2]. 26 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5, 0]. The 1 writes are split as follows [0, 0, 0, 0, 1]. [2024-11-12 20:38:47,080 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:46" (1/1) ... [2024-11-12 20:38:47,080 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:46" (1/1) ... [2024-11-12 20:38:47,085 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:46" (1/1) ... [2024-11-12 20:38:47,088 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:46" (1/1) ... [2024-11-12 20:38:47,094 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:46" (1/1) ... [2024-11-12 20:38:47,096 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:46" (1/1) ... [2024-11-12 20:38:47,099 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 20:38:47,100 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 20:38:47,100 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 20:38:47,100 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 20:38:47,101 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:46" (1/1) ... [2024-11-12 20:38:47,112 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:38:47,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:38:47,137 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 20:38:47,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 20:38:47,181 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 20:38:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 20:38:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 20:38:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 20:38:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-12 20:38:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 20:38:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 20:38:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 20:38:47,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 20:38:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-12 20:38:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-12 20:38:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 20:38:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 20:38:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-12 20:38:47,183 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-12 20:38:47,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 20:38:47,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 20:38:47,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 20:38:47,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 20:38:47,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 20:38:47,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-12 20:38:47,184 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-12 20:38:47,184 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 20:38:47,184 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 20:38:47,186 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 20:38:47,311 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 20:38:47,314 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 20:38:47,576 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 20:38:47,576 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 20:38:47,725 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 20:38:47,725 INFO L316 CfgBuilder]: Removed 11 assume(true) statements. [2024-11-12 20:38:47,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:38:47 BoogieIcfgContainer [2024-11-12 20:38:47,726 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 20:38:47,728 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 20:38:47,728 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 20:38:47,731 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 20:38:47,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:38:46" (1/3) ... [2024-11-12 20:38:47,732 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79edbb32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:38:47, skipping insertion in model container [2024-11-12 20:38:47,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:38:46" (2/3) ... [2024-11-12 20:38:47,733 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79edbb32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:38:47, skipping insertion in model container [2024-11-12 20:38:47,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:38:47" (3/3) ... [2024-11-12 20:38:47,734 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_19-callback_racing.i [2024-11-12 20:38:47,749 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 20:38:47,749 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2024-11-12 20:38:47,749 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 20:38:47,791 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-12 20:38:47,827 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 61 places, 69 transitions, 145 flow [2024-11-12 20:38:47,865 INFO L124 PetriNetUnfolderBase]: 19/112 cut-off events. [2024-11-12 20:38:47,865 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 20:38:47,870 INFO L83 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 112 events. 19/112 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 380 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 60. Up to 6 conditions per place. [2024-11-12 20:38:47,871 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 69 transitions, 145 flow [2024-11-12 20:38:47,875 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 68 transitions, 143 flow [2024-11-12 20:38:47,887 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 20:38:47,892 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;@5a9d945b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 20:38:47,892 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-12 20:38:47,900 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 20:38:47,900 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-12 20:38:47,900 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:38:47,900 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:47,901 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-12 20:38:47,901 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:38:47,907 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:47,907 INFO L85 PathProgramCache]: Analyzing trace with hash 429179773, now seen corresponding path program 1 times [2024-11-12 20:38:47,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:47,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [731655281] [2024-11-12 20:38:47,915 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:47,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:48,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:38:48,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:38:48,205 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:38:48,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [731655281] [2024-11-12 20:38:48,206 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [731655281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:38:48,206 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:38:48,206 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:38:48,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694567085] [2024-11-12 20:38:48,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:38:48,214 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:38:48,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:38:48,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:38:48,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:38:48,255 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 69 [2024-11-12 20:38:48,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 68 transitions, 143 flow. Second operand has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:48,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:38:48,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 69 [2024-11-12 20:38:48,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:38:48,442 INFO L124 PetriNetUnfolderBase]: 134/422 cut-off events. [2024-11-12 20:38:48,443 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 20:38:48,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 712 conditions, 422 events. 134/422 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 2096 event pairs, 0 based on Foata normal form. 56/428 useless extension candidates. Maximal degree in co-relation 687. Up to 263 conditions per place. [2024-11-12 20:38:48,452 INFO L140 encePairwiseOnDemand]: 55/69 looper letters, 40 selfloop transitions, 3 changer transitions 1/71 dead transitions. [2024-11-12 20:38:48,452 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 71 transitions, 237 flow [2024-11-12 20:38:48,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:38:48,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:38:48,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 167 transitions. [2024-11-12 20:38:48,463 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.605072463768116 [2024-11-12 20:38:48,464 INFO L175 Difference]: Start difference. First operand has 61 places, 68 transitions, 143 flow. Second operand 4 states and 167 transitions. [2024-11-12 20:38:48,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 71 transitions, 237 flow [2024-11-12 20:38:48,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 71 transitions, 237 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 20:38:48,470 INFO L231 Difference]: Finished difference. Result has 63 places, 57 transitions, 131 flow [2024-11-12 20:38:48,471 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=69, PETRI_DIFFERENCE_MINUEND_FLOW=123, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=131, PETRI_PLACES=63, PETRI_TRANSITIONS=57} [2024-11-12 20:38:48,474 INFO L279 CegarLoopForPetriNet]: 61 programPoint places, 2 predicate places. [2024-11-12 20:38:48,474 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 57 transitions, 131 flow [2024-11-12 20:38:48,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.25) internal successors, (113), 4 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:48,474 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:48,475 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2024-11-12 20:38:48,475 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 20:38:48,475 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:38:48,475 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:48,476 INFO L85 PathProgramCache]: Analyzing trace with hash -422580011, now seen corresponding path program 1 times [2024-11-12 20:38:48,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:48,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929678784] [2024-11-12 20:38:48,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:48,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:48,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:38:48,494 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:38:48,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:38:48,523 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:38:48,523 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 20:38:48,524 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-11-12 20:38:48,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2024-11-12 20:38:48,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 11 remaining) [2024-11-12 20:38:48,526 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2024-11-12 20:38:48,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 11 remaining) [2024-11-12 20:38:48,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 11 remaining) [2024-11-12 20:38:48,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 11 remaining) [2024-11-12 20:38:48,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2024-11-12 20:38:48,527 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2024-11-12 20:38:48,528 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2024-11-12 20:38:48,528 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining) [2024-11-12 20:38:48,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 20:38:48,528 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1] [2024-11-12 20:38:48,530 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 20:38:48,530 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-12 20:38:48,543 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-12 20:38:48,545 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 83 transitions, 182 flow [2024-11-12 20:38:48,558 INFO L124 PetriNetUnfolderBase]: 31/188 cut-off events. [2024-11-12 20:38:48,558 INFO L125 PetriNetUnfolderBase]: For 6/7 co-relation queries the response was YES. [2024-11-12 20:38:48,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 200 conditions, 188 events. 31/188 cut-off events. For 6/7 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 798 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 120. Up to 9 conditions per place. [2024-11-12 20:38:48,559 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 83 transitions, 182 flow [2024-11-12 20:38:48,562 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 83 transitions, 182 flow [2024-11-12 20:38:48,564 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 20:38:48,564 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;@5a9d945b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 20:38:48,564 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-12 20:38:48,567 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 20:38:48,568 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-12 20:38:48,568 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:38:48,568 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:48,569 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-12 20:38:48,569 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:38:48,569 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:48,570 INFO L85 PathProgramCache]: Analyzing trace with hash 508398620, now seen corresponding path program 1 times [2024-11-12 20:38:48,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:48,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353134403] [2024-11-12 20:38:48,571 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:48,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:48,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:38:48,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:38:48,655 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:38:48,655 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353134403] [2024-11-12 20:38:48,659 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353134403] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:38:48,659 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:38:48,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:38:48,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508729199] [2024-11-12 20:38:48,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:38:48,660 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:38:48,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:38:48,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:38:48,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:38:48,674 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 83 [2024-11-12 20:38:48,674 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 83 transitions, 182 flow. Second operand has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:48,674 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:38:48,674 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 83 [2024-11-12 20:38:48,674 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:38:49,135 INFO L124 PetriNetUnfolderBase]: 2160/4561 cut-off events. [2024-11-12 20:38:49,135 INFO L125 PetriNetUnfolderBase]: For 52/52 co-relation queries the response was YES. [2024-11-12 20:38:49,141 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8079 conditions, 4561 events. 2160/4561 cut-off events. For 52/52 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 33914 event pairs, 948 based on Foata normal form. 565/4654 useless extension candidates. Maximal degree in co-relation 1072. Up to 3454 conditions per place. [2024-11-12 20:38:49,160 INFO L140 encePairwiseOnDemand]: 67/83 looper letters, 53 selfloop transitions, 3 changer transitions 1/88 dead transitions. [2024-11-12 20:38:49,160 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 88 transitions, 306 flow [2024-11-12 20:38:49,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:38:49,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:38:49,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 198 transitions. [2024-11-12 20:38:49,164 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5963855421686747 [2024-11-12 20:38:49,165 INFO L175 Difference]: Start difference. First operand has 74 places, 83 transitions, 182 flow. Second operand 4 states and 198 transitions. [2024-11-12 20:38:49,165 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 88 transitions, 306 flow [2024-11-12 20:38:49,166 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 88 transitions, 306 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 20:38:49,168 INFO L231 Difference]: Finished difference. Result has 79 places, 74 transitions, 184 flow [2024-11-12 20:38:49,169 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=184, PETRI_PLACES=79, PETRI_TRANSITIONS=74} [2024-11-12 20:38:49,169 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 5 predicate places. [2024-11-12 20:38:49,171 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 74 transitions, 184 flow [2024-11-12 20:38:49,171 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 32.25) internal successors, (129), 4 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:49,171 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:49,171 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-12 20:38:49,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 20:38:49,172 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:38:49,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:49,172 INFO L85 PathProgramCache]: Analyzing trace with hash -31008963, now seen corresponding path program 1 times [2024-11-12 20:38:49,172 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:49,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1448155338] [2024-11-12 20:38:49,173 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:49,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:49,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:38:49,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:38:49,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:38:49,265 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1448155338] [2024-11-12 20:38:49,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1448155338] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:38:49,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:38:49,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 20:38:49,266 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [660421163] [2024-11-12 20:38:49,266 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:38:49,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 20:38:49,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:38:49,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 20:38:49,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 20:38:49,282 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 83 [2024-11-12 20:38:49,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 74 transitions, 184 flow. Second operand has 6 states, 6 states have (on average 32.5) internal successors, (195), 6 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:49,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:38:49,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 83 [2024-11-12 20:38:49,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:38:49,757 INFO L124 PetriNetUnfolderBase]: 1980/4331 cut-off events. [2024-11-12 20:38:49,757 INFO L125 PetriNetUnfolderBase]: For 189/189 co-relation queries the response was YES. [2024-11-12 20:38:49,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7791 conditions, 4331 events. 1980/4331 cut-off events. For 189/189 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 33054 event pairs, 84 based on Foata normal form. 49/4022 useless extension candidates. Maximal degree in co-relation 1129. Up to 2512 conditions per place. [2024-11-12 20:38:49,781 INFO L140 encePairwiseOnDemand]: 78/83 looper letters, 73 selfloop transitions, 6 changer transitions 0/110 dead transitions. [2024-11-12 20:38:49,782 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 110 transitions, 412 flow [2024-11-12 20:38:49,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 20:38:49,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 20:38:49,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 266 transitions. [2024-11-12 20:38:49,785 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5341365461847389 [2024-11-12 20:38:49,785 INFO L175 Difference]: Start difference. First operand has 79 places, 74 transitions, 184 flow. Second operand 6 states and 266 transitions. [2024-11-12 20:38:49,785 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 110 transitions, 412 flow [2024-11-12 20:38:49,787 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 110 transitions, 410 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 20:38:49,790 INFO L231 Difference]: Finished difference. Result has 81 places, 73 transitions, 190 flow [2024-11-12 20:38:49,791 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=190, PETRI_PLACES=81, PETRI_TRANSITIONS=73} [2024-11-12 20:38:49,791 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 7 predicate places. [2024-11-12 20:38:49,792 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 73 transitions, 190 flow [2024-11-12 20:38:49,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 32.5) internal successors, (195), 6 states have internal predecessors, (195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:49,792 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:49,793 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-12 20:38:49,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 20:38:49,793 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:38:49,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:49,794 INFO L85 PathProgramCache]: Analyzing trace with hash -961277324, now seen corresponding path program 1 times [2024-11-12 20:38:49,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:49,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61527987] [2024-11-12 20:38:49,794 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:49,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:49,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:38:49,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:38:49,838 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:38:49,838 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61527987] [2024-11-12 20:38:49,838 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61527987] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:38:49,839 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:38:49,839 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:38:49,839 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534798726] [2024-11-12 20:38:49,839 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:38:49,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:38:49,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:38:49,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:38:49,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:38:49,845 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 83 [2024-11-12 20:38:49,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 73 transitions, 190 flow. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:49,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:38:49,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 83 [2024-11-12 20:38:49,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:38:50,162 INFO L124 PetriNetUnfolderBase]: 1896/4154 cut-off events. [2024-11-12 20:38:50,162 INFO L125 PetriNetUnfolderBase]: For 435/435 co-relation queries the response was YES. [2024-11-12 20:38:50,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7594 conditions, 4154 events. 1896/4154 cut-off events. For 435/435 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 31356 event pairs, 85 based on Foata normal form. 49/3904 useless extension candidates. Maximal degree in co-relation 3675. Up to 2658 conditions per place. [2024-11-12 20:38:50,187 INFO L140 encePairwiseOnDemand]: 78/83 looper letters, 60 selfloop transitions, 6 changer transitions 0/97 dead transitions. [2024-11-12 20:38:50,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 97 transitions, 368 flow [2024-11-12 20:38:50,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:38:50,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:38:50,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 189 transitions. [2024-11-12 20:38:50,189 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5692771084337349 [2024-11-12 20:38:50,189 INFO L175 Difference]: Start difference. First operand has 81 places, 73 transitions, 190 flow. Second operand 4 states and 189 transitions. [2024-11-12 20:38:50,189 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 97 transitions, 368 flow [2024-11-12 20:38:50,192 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 97 transitions, 352 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-11-12 20:38:50,195 INFO L231 Difference]: Finished difference. Result has 79 places, 73 transitions, 190 flow [2024-11-12 20:38:50,196 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=190, PETRI_PLACES=79, PETRI_TRANSITIONS=73} [2024-11-12 20:38:50,197 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 5 predicate places. [2024-11-12 20:38:50,199 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 73 transitions, 190 flow [2024-11-12 20:38:50,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 4 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:50,199 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:50,199 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:38:50,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 20:38:50,200 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:38:50,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:50,200 INFO L85 PathProgramCache]: Analyzing trace with hash -963045221, now seen corresponding path program 1 times [2024-11-12 20:38:50,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:50,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727768567] [2024-11-12 20:38:50,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:50,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:50,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:38:50,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:38:50,268 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:38:50,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727768567] [2024-11-12 20:38:50,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [727768567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:38:50,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:38:50,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 20:38:50,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775741866] [2024-11-12 20:38:50,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:38:50,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 20:38:50,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:38:50,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 20:38:50,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 20:38:50,277 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 31 out of 83 [2024-11-12 20:38:50,277 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 73 transitions, 190 flow. Second operand has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:50,277 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:38:50,278 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 31 of 83 [2024-11-12 20:38:50,278 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:38:50,566 INFO L124 PetriNetUnfolderBase]: 1791/3850 cut-off events. [2024-11-12 20:38:50,566 INFO L125 PetriNetUnfolderBase]: For 568/568 co-relation queries the response was YES. [2024-11-12 20:38:50,573 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7080 conditions, 3850 events. 1791/3850 cut-off events. For 568/568 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 28194 event pairs, 73 based on Foata normal form. 7/3589 useless extension candidates. Maximal degree in co-relation 1792. Up to 2575 conditions per place. [2024-11-12 20:38:50,590 INFO L140 encePairwiseOnDemand]: 79/83 looper letters, 63 selfloop transitions, 4 changer transitions 0/98 dead transitions. [2024-11-12 20:38:50,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 98 transitions, 377 flow [2024-11-12 20:38:50,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 20:38:50,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 20:38:50,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 223 transitions. [2024-11-12 20:38:50,591 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5373493975903615 [2024-11-12 20:38:50,591 INFO L175 Difference]: Start difference. First operand has 79 places, 73 transitions, 190 flow. Second operand 5 states and 223 transitions. [2024-11-12 20:38:50,591 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 98 transitions, 377 flow [2024-11-12 20:38:50,593 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 98 transitions, 368 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 20:38:50,594 INFO L231 Difference]: Finished difference. Result has 82 places, 73 transitions, 194 flow [2024-11-12 20:38:50,594 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=83, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=194, PETRI_PLACES=82, PETRI_TRANSITIONS=73} [2024-11-12 20:38:50,597 INFO L279 CegarLoopForPetriNet]: 74 programPoint places, 8 predicate places. [2024-11-12 20:38:50,597 INFO L471 AbstractCegarLoop]: Abstraction has has 82 places, 73 transitions, 194 flow [2024-11-12 20:38:50,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 32.6) internal successors, (163), 5 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:50,597 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:50,598 INFO L206 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2024-11-12 20:38:50,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 20:38:50,598 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:38:50,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:50,598 INFO L85 PathProgramCache]: Analyzing trace with hash -369522924, now seen corresponding path program 1 times [2024-11-12 20:38:50,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:50,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830330213] [2024-11-12 20:38:50,599 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:50,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:50,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:38:50,615 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:38:50,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:38:50,633 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:38:50,635 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 20:38:50,635 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-11-12 20:38:50,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2024-11-12 20:38:50,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 11 remaining) [2024-11-12 20:38:50,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2024-11-12 20:38:50,635 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 11 remaining) [2024-11-12 20:38:50,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 11 remaining) [2024-11-12 20:38:50,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 11 remaining) [2024-11-12 20:38:50,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2024-11-12 20:38:50,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2024-11-12 20:38:50,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2024-11-12 20:38:50,636 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining) [2024-11-12 20:38:50,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 20:38:50,637 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2024-11-12 20:38:50,637 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 20:38:50,637 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-12 20:38:50,669 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-12 20:38:50,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 87 places, 97 transitions, 221 flow [2024-11-12 20:38:50,682 INFO L124 PetriNetUnfolderBase]: 46/283 cut-off events. [2024-11-12 20:38:50,682 INFO L125 PetriNetUnfolderBase]: For 19/21 co-relation queries the response was YES. [2024-11-12 20:38:50,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 283 events. 46/283 cut-off events. For 19/21 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1308 event pairs, 1 based on Foata normal form. 0/189 useless extension candidates. Maximal degree in co-relation 203. Up to 12 conditions per place. [2024-11-12 20:38:50,684 INFO L82 GeneralOperation]: Start removeDead. Operand has 87 places, 97 transitions, 221 flow [2024-11-12 20:38:50,685 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 97 transitions, 221 flow [2024-11-12 20:38:50,686 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 20:38:50,686 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;@5a9d945b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 20:38:50,686 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-12 20:38:50,688 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 20:38:50,688 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-12 20:38:50,688 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:38:50,688 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:50,688 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-12 20:38:50,688 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:38:50,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:50,689 INFO L85 PathProgramCache]: Analyzing trace with hash 600977737, now seen corresponding path program 1 times [2024-11-12 20:38:50,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:50,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280767705] [2024-11-12 20:38:50,689 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:50,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:50,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:38:50,729 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:38:50,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:38:50,730 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280767705] [2024-11-12 20:38:50,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1280767705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:38:50,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:38:50,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:38:50,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [573972706] [2024-11-12 20:38:50,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:38:50,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:38:50,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:38:50,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:38:50,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:38:50,739 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 97 [2024-11-12 20:38:50,739 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 97 transitions, 221 flow. Second operand has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:50,739 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:38:50,739 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 97 [2024-11-12 20:38:50,739 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:38:53,382 INFO L124 PetriNetUnfolderBase]: 23689/40289 cut-off events. [2024-11-12 20:38:53,383 INFO L125 PetriNetUnfolderBase]: For 711/711 co-relation queries the response was YES. [2024-11-12 20:38:53,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 74067 conditions, 40289 events. 23689/40289 cut-off events. For 711/711 co-relation queries the response was YES. Maximal size of possible extension queue 1118. Compared 341665 event pairs, 17439 based on Foata normal form. 5361/42263 useless extension candidates. Maximal degree in co-relation 12666. Up to 33341 conditions per place. [2024-11-12 20:38:53,587 INFO L140 encePairwiseOnDemand]: 79/97 looper letters, 61 selfloop transitions, 3 changer transitions 1/100 dead transitions. [2024-11-12 20:38:53,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 100 transitions, 357 flow [2024-11-12 20:38:53,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:38:53,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:38:53,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 224 transitions. [2024-11-12 20:38:53,592 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5773195876288659 [2024-11-12 20:38:53,593 INFO L175 Difference]: Start difference. First operand has 87 places, 97 transitions, 221 flow. Second operand 4 states and 224 transitions. [2024-11-12 20:38:53,593 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 100 transitions, 357 flow [2024-11-12 20:38:53,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 100 transitions, 357 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 20:38:53,595 INFO L231 Difference]: Finished difference. Result has 92 places, 86 transitions, 219 flow [2024-11-12 20:38:53,595 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=197, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=219, PETRI_PLACES=92, PETRI_TRANSITIONS=86} [2024-11-12 20:38:53,596 INFO L279 CegarLoopForPetriNet]: 87 programPoint places, 5 predicate places. [2024-11-12 20:38:53,596 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 86 transitions, 219 flow [2024-11-12 20:38:53,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.25) internal successors, (145), 4 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:53,596 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:53,597 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-12 20:38:53,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 20:38:53,597 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:38:53,597 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:53,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1391457443, now seen corresponding path program 1 times [2024-11-12 20:38:53,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:53,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280727609] [2024-11-12 20:38:53,598 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:53,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:53,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:38:53,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:38:53,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:38:53,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280727609] [2024-11-12 20:38:53,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280727609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:38:53,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:38:53,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 20:38:53,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835339880] [2024-11-12 20:38:53,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:38:53,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 20:38:53,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:38:53,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 20:38:53,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 20:38:53,653 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 97 [2024-11-12 20:38:53,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 86 transitions, 219 flow. Second operand has 6 states, 6 states have (on average 36.5) internal successors, (219), 6 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:53,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:38:53,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 97 [2024-11-12 20:38:53,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:38:56,128 INFO L124 PetriNetUnfolderBase]: 21571/38727 cut-off events. [2024-11-12 20:38:56,128 INFO L125 PetriNetUnfolderBase]: For 2010/2010 co-relation queries the response was YES. [2024-11-12 20:38:56,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71090 conditions, 38727 events. 21571/38727 cut-off events. For 2010/2010 co-relation queries the response was YES. Maximal size of possible extension queue 1147. Compared 352268 event pairs, 1456 based on Foata normal form. 392/36402 useless extension candidates. Maximal degree in co-relation 10302. Up to 23839 conditions per place. [2024-11-12 20:38:56,398 INFO L140 encePairwiseOnDemand]: 92/97 looper letters, 93 selfloop transitions, 6 changer transitions 0/134 dead transitions. [2024-11-12 20:38:56,398 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 134 transitions, 511 flow [2024-11-12 20:38:56,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 20:38:56,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 20:38:56,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 310 transitions. [2024-11-12 20:38:56,404 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5326460481099656 [2024-11-12 20:38:56,404 INFO L175 Difference]: Start difference. First operand has 92 places, 86 transitions, 219 flow. Second operand 6 states and 310 transitions. [2024-11-12 20:38:56,404 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 134 transitions, 511 flow [2024-11-12 20:38:56,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 134 transitions, 509 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 20:38:56,409 INFO L231 Difference]: Finished difference. Result has 94 places, 85 transitions, 225 flow [2024-11-12 20:38:56,410 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=225, PETRI_PLACES=94, PETRI_TRANSITIONS=85} [2024-11-12 20:38:56,411 INFO L279 CegarLoopForPetriNet]: 87 programPoint places, 7 predicate places. [2024-11-12 20:38:56,411 INFO L471 AbstractCegarLoop]: Abstraction has has 94 places, 85 transitions, 225 flow [2024-11-12 20:38:56,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.5) internal successors, (219), 6 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:56,412 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:56,412 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-12 20:38:56,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-12 20:38:56,412 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:38:56,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:56,413 INFO L85 PathProgramCache]: Analyzing trace with hash -185507147, now seen corresponding path program 1 times [2024-11-12 20:38:56,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:56,413 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139219948] [2024-11-12 20:38:56,413 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:56,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:56,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:38:56,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:38:56,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:38:56,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139219948] [2024-11-12 20:38:56,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139219948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:38:56,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:38:56,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:38:56,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584609909] [2024-11-12 20:38:56,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:38:56,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:38:56,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:38:56,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:38:56,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:38:56,467 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 97 [2024-11-12 20:38:56,467 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 85 transitions, 225 flow. Second operand has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:56,467 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:38:56,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 97 [2024-11-12 20:38:56,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:38:59,075 INFO L124 PetriNetUnfolderBase]: 20605/37037 cut-off events. [2024-11-12 20:38:59,076 INFO L125 PetriNetUnfolderBase]: For 3277/3277 co-relation queries the response was YES. [2024-11-12 20:38:59,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68841 conditions, 37037 events. 20605/37037 cut-off events. For 3277/3277 co-relation queries the response was YES. Maximal size of possible extension queue 1110. Compared 335981 event pairs, 1162 based on Foata normal form. 392/35235 useless extension candidates. Maximal degree in co-relation 11497. Up to 25210 conditions per place. [2024-11-12 20:38:59,332 INFO L140 encePairwiseOnDemand]: 92/97 looper letters, 80 selfloop transitions, 6 changer transitions 0/121 dead transitions. [2024-11-12 20:38:59,332 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 121 transitions, 467 flow [2024-11-12 20:38:59,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:38:59,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:38:59,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 225 transitions. [2024-11-12 20:38:59,333 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5798969072164949 [2024-11-12 20:38:59,333 INFO L175 Difference]: Start difference. First operand has 94 places, 85 transitions, 225 flow. Second operand 4 states and 225 transitions. [2024-11-12 20:38:59,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 121 transitions, 467 flow [2024-11-12 20:38:59,341 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 121 transitions, 451 flow, removed 3 selfloop flow, removed 5 redundant places. [2024-11-12 20:38:59,344 INFO L231 Difference]: Finished difference. Result has 92 places, 85 transitions, 225 flow [2024-11-12 20:38:59,344 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=84, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=225, PETRI_PLACES=92, PETRI_TRANSITIONS=85} [2024-11-12 20:38:59,345 INFO L279 CegarLoopForPetriNet]: 87 programPoint places, 5 predicate places. [2024-11-12 20:38:59,345 INFO L471 AbstractCegarLoop]: Abstraction has has 92 places, 85 transitions, 225 flow [2024-11-12 20:38:59,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.25) internal successors, (149), 4 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:59,346 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:38:59,346 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:38:59,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 20:38:59,347 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:38:59,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:38:59,347 INFO L85 PathProgramCache]: Analyzing trace with hash -187632536, now seen corresponding path program 1 times [2024-11-12 20:38:59,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:38:59,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464808423] [2024-11-12 20:38:59,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:38:59,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:38:59,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:38:59,402 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:38:59,405 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:38:59,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464808423] [2024-11-12 20:38:59,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464808423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:38:59,406 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:38:59,406 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 20:38:59,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1231912346] [2024-11-12 20:38:59,406 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:38:59,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 20:38:59,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:38:59,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 20:38:59,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-12 20:38:59,417 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 97 [2024-11-12 20:38:59,418 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 92 places, 85 transitions, 225 flow. Second operand has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:38:59,418 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:38:59,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 97 [2024-11-12 20:38:59,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:39:01,396 INFO L124 PetriNetUnfolderBase]: 20500/36328 cut-off events. [2024-11-12 20:39:01,396 INFO L125 PetriNetUnfolderBase]: For 4776/4776 co-relation queries the response was YES. [2024-11-12 20:39:01,460 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67922 conditions, 36328 events. 20500/36328 cut-off events. For 4776/4776 co-relation queries the response was YES. Maximal size of possible extension queue 1043. Compared 319319 event pairs, 5936 based on Foata normal form. 7/34129 useless extension candidates. Maximal degree in co-relation 7532. Up to 28508 conditions per place. [2024-11-12 20:39:01,545 INFO L140 encePairwiseOnDemand]: 93/97 looper letters, 73 selfloop transitions, 4 changer transitions 0/112 dead transitions. [2024-11-12 20:39:01,545 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 112 transitions, 445 flow [2024-11-12 20:39:01,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 20:39:01,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 20:39:01,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 253 transitions. [2024-11-12 20:39:01,546 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5216494845360825 [2024-11-12 20:39:01,546 INFO L175 Difference]: Start difference. First operand has 92 places, 85 transitions, 225 flow. Second operand 5 states and 253 transitions. [2024-11-12 20:39:01,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 112 transitions, 445 flow [2024-11-12 20:39:01,548 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 112 transitions, 433 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 20:39:01,553 INFO L231 Difference]: Finished difference. Result has 95 places, 86 transitions, 237 flow [2024-11-12 20:39:01,553 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=217, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=81, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=237, PETRI_PLACES=95, PETRI_TRANSITIONS=86} [2024-11-12 20:39:01,553 INFO L279 CegarLoopForPetriNet]: 87 programPoint places, 8 predicate places. [2024-11-12 20:39:01,554 INFO L471 AbstractCegarLoop]: Abstraction has has 95 places, 86 transitions, 237 flow [2024-11-12 20:39:01,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.6) internal successors, (183), 5 states have internal predecessors, (183), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:39:01,554 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:39:01,554 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:39:01,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 20:39:01,554 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:39:01,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:39:01,554 INFO L85 PathProgramCache]: Analyzing trace with hash 213905276, now seen corresponding path program 1 times [2024-11-12 20:39:01,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:39:01,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105762635] [2024-11-12 20:39:01,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:39:01,555 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:39:01,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:39:01,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:39:01,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:39:01,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105762635] [2024-11-12 20:39:01,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105762635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:39:01,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:39:01,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:39:01,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358319628] [2024-11-12 20:39:01,750 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:39:01,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:39:01,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:39:01,751 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:39:01,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:39:01,757 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 97 [2024-11-12 20:39:01,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 86 transitions, 237 flow. Second operand has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:39:01,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:39:01,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 97 [2024-11-12 20:39:01,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:39:06,044 INFO L124 PetriNetUnfolderBase]: 37308/64757 cut-off events. [2024-11-12 20:39:06,045 INFO L125 PetriNetUnfolderBase]: For 4477/4477 co-relation queries the response was YES. [2024-11-12 20:39:06,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 119488 conditions, 64757 events. 37308/64757 cut-off events. For 4477/4477 co-relation queries the response was YES. Maximal size of possible extension queue 1828. Compared 603735 event pairs, 21578 based on Foata normal form. 392/61388 useless extension candidates. Maximal degree in co-relation 66675. Up to 31483 conditions per place. [2024-11-12 20:39:06,374 INFO L140 encePairwiseOnDemand]: 91/97 looper letters, 101 selfloop transitions, 3 changer transitions 0/138 dead transitions. [2024-11-12 20:39:06,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 138 transitions, 549 flow [2024-11-12 20:39:06,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:39:06,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:39:06,375 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 244 transitions. [2024-11-12 20:39:06,376 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6288659793814433 [2024-11-12 20:39:06,376 INFO L175 Difference]: Start difference. First operand has 95 places, 86 transitions, 237 flow. Second operand 4 states and 244 transitions. [2024-11-12 20:39:06,376 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 138 transitions, 549 flow [2024-11-12 20:39:06,378 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 138 transitions, 543 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-12 20:39:06,380 INFO L231 Difference]: Finished difference. Result has 97 places, 88 transitions, 255 flow [2024-11-12 20:39:06,381 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=97, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=255, PETRI_PLACES=97, PETRI_TRANSITIONS=88} [2024-11-12 20:39:06,382 INFO L279 CegarLoopForPetriNet]: 87 programPoint places, 10 predicate places. [2024-11-12 20:39:06,382 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 88 transitions, 255 flow [2024-11-12 20:39:06,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.5) internal successors, (150), 4 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:39:06,382 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:39:06,382 INFO L206 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 1, 1, 1, 1, 1] [2024-11-12 20:39:06,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-12 20:39:06,383 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:39:06,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:39:06,383 INFO L85 PathProgramCache]: Analyzing trace with hash 1475687924, now seen corresponding path program 1 times [2024-11-12 20:39:06,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:39:06,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283007676] [2024-11-12 20:39:06,383 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:39:06,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:39:06,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:39:06,403 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 20:39:06,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 20:39:06,417 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 20:39:06,418 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 20:39:06,418 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 11 remaining) [2024-11-12 20:39:06,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 11 remaining) [2024-11-12 20:39:06,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 11 remaining) [2024-11-12 20:39:06,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 11 remaining) [2024-11-12 20:39:06,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 11 remaining) [2024-11-12 20:39:06,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 11 remaining) [2024-11-12 20:39:06,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 11 remaining) [2024-11-12 20:39:06,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 11 remaining) [2024-11-12 20:39:06,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 11 remaining) [2024-11-12 20:39:06,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 11 remaining) [2024-11-12 20:39:06,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 11 remaining) [2024-11-12 20:39:06,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-12 20:39:06,419 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-12 20:39:06,420 WARN L244 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 20:39:06,420 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2024-11-12 20:39:06,443 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-12 20:39:06,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 100 places, 111 transitions, 262 flow [2024-11-12 20:39:06,466 INFO L124 PetriNetUnfolderBase]: 69/418 cut-off events. [2024-11-12 20:39:06,466 INFO L125 PetriNetUnfolderBase]: For 48/51 co-relation queries the response was YES. [2024-11-12 20:39:06,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 469 conditions, 418 events. 69/418 cut-off events. For 48/51 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 2050 event pairs, 6 based on Foata normal form. 0/281 useless extension candidates. Maximal degree in co-relation 311. Up to 32 conditions per place. [2024-11-12 20:39:06,468 INFO L82 GeneralOperation]: Start removeDead. Operand has 100 places, 111 transitions, 262 flow [2024-11-12 20:39:06,470 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 100 places, 111 transitions, 262 flow [2024-11-12 20:39:06,471 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 20:39:06,472 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;@5a9d945b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 20:39:06,472 INFO L334 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2024-11-12 20:39:06,473 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 20:39:06,475 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-11-12 20:39:06,475 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:39:06,475 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:39:06,476 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-12 20:39:06,476 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 8 more)] === [2024-11-12 20:39:06,476 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:39:06,476 INFO L85 PathProgramCache]: Analyzing trace with hash 706917124, now seen corresponding path program 1 times [2024-11-12 20:39:06,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:39:06,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [650154749] [2024-11-12 20:39:06,477 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:39:06,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:39:06,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:39:06,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:39:06,509 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:39:06,509 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [650154749] [2024-11-12 20:39:06,509 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [650154749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:39:06,509 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:39:06,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:39:06,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [702970382] [2024-11-12 20:39:06,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:39:06,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:39:06,510 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:39:06,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:39:06,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:39:06,515 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 111 [2024-11-12 20:39:06,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 111 transitions, 262 flow. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:39:06,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:39:06,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 111 [2024-11-12 20:39:06,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand