./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_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 246cd07a930f0cb8d777c2eae74f25d04e3267c275b813f0c0f5232c23299340 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:49:14,276 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:49:14,346 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:49:14,351 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:49:14,352 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:49:14,372 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:49:14,373 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:49:14,373 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:49:14,374 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:49:14,374 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:49:14,375 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:49:14,375 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:49:14,376 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:49:14,376 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:49:14,378 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:49:14,379 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:49:14,379 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:49:14,380 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:49:14,380 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:49:14,380 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:49:14,381 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:49:14,384 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:49:14,385 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:49:14,385 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:49:14,385 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:49:14,385 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:49:14,386 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:49:14,386 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:49:14,386 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:49:14,386 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:49:14,387 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:49:14,387 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:49:14,387 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:49:14,387 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:49:14,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:49:14,389 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:49:14,390 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:49:14,390 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:49:14,391 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:49:14,391 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:49:14,391 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:49:14,391 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:49:14,392 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:49:14,392 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:49:14,392 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 246cd07a930f0cb8d777c2eae74f25d04e3267c275b813f0c0f5232c23299340 [2024-11-17 07:49:14,675 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:49:14,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:49:14,710 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:49:14,712 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:49:14,712 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:49:14,714 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing.i [2024-11-17 07:49:16,244 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:49:16,503 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:49:16,507 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_78-equ_racing.i [2024-11-17 07:49:16,530 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a08e3f6f8/f98e525ad19548eabe48998e27e0e099/FLAG927822f7a [2024-11-17 07:49:16,547 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a08e3f6f8/f98e525ad19548eabe48998e27e0e099 [2024-11-17 07:49:16,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:49:16,551 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:49:16,552 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:49:16,552 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:49:16,559 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:49:16,559 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:49:16" (1/1) ... [2024-11-17 07:49:16,560 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@520362f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:16, skipping insertion in model container [2024-11-17 07:49:16,561 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:49:16" (1/1) ... [2024-11-17 07:49:16,611 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:49:17,182 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:49:17,245 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:49:17,354 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:49:17,424 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:49:17,425 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:17 WrapperNode [2024-11-17 07:49:17,425 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:49:17,427 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:49:17,427 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:49:17,427 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:49:17,434 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:17" (1/1) ... [2024-11-17 07:49:17,463 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:17" (1/1) ... [2024-11-17 07:49:17,507 INFO L138 Inliner]: procedures = 272, calls = 65, calls flagged for inlining = 5, calls inlined = 6, statements flattened = 234 [2024-11-17 07:49:17,508 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:49:17,509 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:49:17,509 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:49:17,509 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:49:17,527 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:17" (1/1) ... [2024-11-17 07:49:17,527 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:17" (1/1) ... [2024-11-17 07:49:17,533 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:17" (1/1) ... [2024-11-17 07:49:17,550 INFO L175 MemorySlicer]: Split 35 memory accesses to 4 slices as follows [2, 5, 26, 2]. 74 percent of accesses are in the largest equivalence class. The 23 initializations are split as follows [2, 5, 16, 0]. The 5 writes are split as follows [0, 0, 4, 1]. [2024-11-17 07:49:17,551 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:17" (1/1) ... [2024-11-17 07:49:17,551 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:17" (1/1) ... [2024-11-17 07:49:17,563 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:17" (1/1) ... [2024-11-17 07:49:17,564 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:17" (1/1) ... [2024-11-17 07:49:17,566 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:17" (1/1) ... [2024-11-17 07:49:17,568 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:17" (1/1) ... [2024-11-17 07:49:17,572 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:49:17,573 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:49:17,573 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:49:17,573 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:49:17,574 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:17" (1/1) ... [2024-11-17 07:49:17,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:49:17,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:49:17,617 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 07:49:17,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 07:49:17,678 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 07:49:17,678 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 07:49:17,678 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-17 07:49:17,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 07:49:17,678 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 07:49:17,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 07:49:17,679 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-17 07:49:17,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 07:49:17,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 07:49:17,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-17 07:49:17,679 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-17 07:49:17,679 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-17 07:49:17,679 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:49:17,679 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-17 07:49:17,680 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-17 07:49:17,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:49:17,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 07:49:17,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 07:49:17,680 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-17 07:49:17,680 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:49:17,680 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:49:17,684 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:49:17,868 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:49:17,871 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:49:18,210 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1036: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2024-11-17 07:49:18,211 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1036-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2024-11-17 07:49:18,307 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:49:18,307 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:49:18,556 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:49:18,556 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:49:18,557 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:49:18 BoogieIcfgContainer [2024-11-17 07:49:18,557 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:49:18,560 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:49:18,561 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:49:18,564 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:49:18,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:49:16" (1/3) ... [2024-11-17 07:49:18,566 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63e62073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:49:18, skipping insertion in model container [2024-11-17 07:49:18,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:49:17" (2/3) ... [2024-11-17 07:49:18,567 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63e62073 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:49:18, skipping insertion in model container [2024-11-17 07:49:18,568 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:49:18" (3/3) ... [2024-11-17 07:49:18,569 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_78-equ_racing.i [2024-11-17 07:49:18,588 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:49:18,589 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-17 07:49:18,589 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:49:18,663 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-17 07:49:18,704 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 107 places, 131 transitions, 269 flow [2024-11-17 07:49:18,779 INFO L124 PetriNetUnfolderBase]: 40/188 cut-off events. [2024-11-17 07:49:18,780 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-17 07:49:18,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 193 conditions, 188 events. 40/188 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 717 event pairs, 0 based on Foata normal form. 0/125 useless extension candidates. Maximal degree in co-relation 109. Up to 8 conditions per place. [2024-11-17 07:49:18,788 INFO L82 GeneralOperation]: Start removeDead. Operand has 107 places, 131 transitions, 269 flow [2024-11-17 07:49:18,793 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 107 places, 129 transitions, 265 flow [2024-11-17 07:49:18,802 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:49:18,809 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;@3e4d34ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:49:18,810 INFO L334 AbstractCegarLoop]: Starting to check reachability of 21 error locations. [2024-11-17 07:49:18,814 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:49:18,814 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-17 07:49:18,814 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:49:18,815 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:18,816 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 07:49:18,816 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-17 07:49:18,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:18,822 INFO L85 PathProgramCache]: Analyzing trace with hash 18133870, now seen corresponding path program 1 times [2024-11-17 07:49:18,831 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:18,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396010336] [2024-11-17 07:49:18,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:18,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:19,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:19,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:19,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:19,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396010336] [2024-11-17 07:49:19,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396010336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:19,171 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:19,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:49:19,173 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408604946] [2024-11-17 07:49:19,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:19,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:49:19,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:19,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:49:19,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:49:19,231 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 131 [2024-11-17 07:49:19,235 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 129 transitions, 265 flow. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:19,236 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:19,236 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 131 [2024-11-17 07:49:19,237 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:19,935 INFO L124 PetriNetUnfolderBase]: 833/2775 cut-off events. [2024-11-17 07:49:19,936 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-17 07:49:19,948 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4435 conditions, 2775 events. 833/2775 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 23374 event pairs, 714 based on Foata normal form. 838/3368 useless extension candidates. Maximal degree in co-relation 2145. Up to 852 conditions per place. [2024-11-17 07:49:19,963 INFO L140 encePairwiseOnDemand]: 103/131 looper letters, 86 selfloop transitions, 5 changer transitions 0/148 dead transitions. [2024-11-17 07:49:19,965 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 148 transitions, 491 flow [2024-11-17 07:49:19,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:49:19,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:49:19,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 364 transitions. [2024-11-17 07:49:19,983 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6946564885496184 [2024-11-17 07:49:19,986 INFO L175 Difference]: Start difference. First operand has 107 places, 129 transitions, 265 flow. Second operand 4 states and 364 transitions. [2024-11-17 07:49:19,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 148 transitions, 491 flow [2024-11-17 07:49:19,991 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 148 transitions, 491 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:49:19,998 INFO L231 Difference]: Finished difference. Result has 110 places, 107 transitions, 238 flow [2024-11-17 07:49:20,000 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=238, PETRI_PLACES=110, PETRI_TRANSITIONS=107} [2024-11-17 07:49:20,005 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 3 predicate places. [2024-11-17 07:49:20,006 INFO L471 AbstractCegarLoop]: Abstraction has has 110 places, 107 transitions, 238 flow [2024-11-17 07:49:20,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:20,006 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:20,007 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 07:49:20,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:49:20,007 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-17 07:49:20,008 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:20,008 INFO L85 PathProgramCache]: Analyzing trace with hash 18133836, now seen corresponding path program 1 times [2024-11-17 07:49:20,009 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:20,009 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091289053] [2024-11-17 07:49:20,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:20,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:20,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:20,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:20,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:20,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091289053] [2024-11-17 07:49:20,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091289053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:20,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:20,135 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:49:20,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454715441] [2024-11-17 07:49:20,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:20,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:49:20,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:20,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:49:20,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:49:20,147 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 131 [2024-11-17 07:49:20,148 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 107 transitions, 238 flow. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:20,148 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:20,148 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 131 [2024-11-17 07:49:20,148 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:20,519 INFO L124 PetriNetUnfolderBase]: 833/2781 cut-off events. [2024-11-17 07:49:20,519 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-17 07:49:20,527 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4506 conditions, 2781 events. 833/2781 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 23419 event pairs, 731 based on Foata normal form. 1/2538 useless extension candidates. Maximal degree in co-relation 2251. Up to 1650 conditions per place. [2024-11-17 07:49:20,542 INFO L140 encePairwiseOnDemand]: 128/131 looper letters, 48 selfloop transitions, 2 changer transitions 0/106 dead transitions. [2024-11-17 07:49:20,543 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 106 transitions, 336 flow [2024-11-17 07:49:20,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:49:20,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:49:20,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 221 transitions. [2024-11-17 07:49:20,639 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5623409669211196 [2024-11-17 07:49:20,643 INFO L175 Difference]: Start difference. First operand has 110 places, 107 transitions, 238 flow. Second operand 3 states and 221 transitions. [2024-11-17 07:49:20,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 106 transitions, 336 flow [2024-11-17 07:49:20,646 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 106 transitions, 331 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:49:20,648 INFO L231 Difference]: Finished difference. Result has 109 places, 106 transitions, 235 flow [2024-11-17 07:49:20,649 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=231, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=235, PETRI_PLACES=109, PETRI_TRANSITIONS=106} [2024-11-17 07:49:20,649 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 2 predicate places. [2024-11-17 07:49:20,650 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 106 transitions, 235 flow [2024-11-17 07:49:20,650 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:20,650 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:20,650 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-17 07:49:20,650 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 07:49:20,651 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-17 07:49:20,651 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:20,651 INFO L85 PathProgramCache]: Analyzing trace with hash 562149359, now seen corresponding path program 1 times [2024-11-17 07:49:20,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:20,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231352401] [2024-11-17 07:49:20,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:20,652 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:20,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:20,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:20,727 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:20,727 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231352401] [2024-11-17 07:49:20,727 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231352401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:20,727 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:20,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:49:20,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763685827] [2024-11-17 07:49:20,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:20,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:49:20,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:20,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:49:20,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:49:20,735 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 131 [2024-11-17 07:49:20,736 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 106 transitions, 235 flow. Second operand has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:20,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:20,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 131 [2024-11-17 07:49:20,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:21,040 INFO L124 PetriNetUnfolderBase]: 833/2780 cut-off events. [2024-11-17 07:49:21,041 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-17 07:49:21,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4485 conditions, 2780 events. 833/2780 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 23412 event pairs, 731 based on Foata normal form. 1/2537 useless extension candidates. Maximal degree in co-relation 2264. Up to 1650 conditions per place. [2024-11-17 07:49:21,057 INFO L140 encePairwiseOnDemand]: 128/131 looper letters, 47 selfloop transitions, 2 changer transitions 0/105 dead transitions. [2024-11-17 07:49:21,057 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 105 transitions, 331 flow [2024-11-17 07:49:21,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:49:21,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:49:21,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 220 transitions. [2024-11-17 07:49:21,059 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5597964376590331 [2024-11-17 07:49:21,059 INFO L175 Difference]: Start difference. First operand has 109 places, 106 transitions, 235 flow. Second operand 3 states and 220 transitions. [2024-11-17 07:49:21,059 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 105 transitions, 331 flow [2024-11-17 07:49:21,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 105 transitions, 327 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:49:21,064 INFO L231 Difference]: Finished difference. Result has 108 places, 105 transitions, 233 flow [2024-11-17 07:49:21,064 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=106, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=233, PETRI_PLACES=108, PETRI_TRANSITIONS=105} [2024-11-17 07:49:21,065 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 1 predicate places. [2024-11-17 07:49:21,065 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 105 transitions, 233 flow [2024-11-17 07:49:21,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.333333333333336) internal successors, (175), 3 states have internal predecessors, (175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:21,065 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:21,066 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-17 07:49:21,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 07:49:21,066 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-17 07:49:21,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:21,066 INFO L85 PathProgramCache]: Analyzing trace with hash 562150451, now seen corresponding path program 1 times [2024-11-17 07:49:21,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:21,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53032054] [2024-11-17 07:49:21,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:21,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:21,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:21,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:21,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:21,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53032054] [2024-11-17 07:49:21,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53032054] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:21,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:21,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:49:21,135 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161217410] [2024-11-17 07:49:21,135 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:21,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:49:21,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:21,136 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:49:21,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:49:21,143 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 131 [2024-11-17 07:49:21,143 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 105 transitions, 233 flow. Second operand has 5 states, 5 states have (on average 57.8) internal successors, (289), 5 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:21,144 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:21,144 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 131 [2024-11-17 07:49:21,144 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:21,545 INFO L124 PetriNetUnfolderBase]: 833/2772 cut-off events. [2024-11-17 07:49:21,546 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-17 07:49:21,553 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4477 conditions, 2772 events. 833/2772 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 23413 event pairs, 714 based on Foata normal form. 1/2530 useless extension candidates. Maximal degree in co-relation 2244. Up to 1591 conditions per place. [2024-11-17 07:49:21,565 INFO L140 encePairwiseOnDemand]: 124/131 looper letters, 51 selfloop transitions, 7 changer transitions 8/121 dead transitions. [2024-11-17 07:49:21,565 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 121 transitions, 397 flow [2024-11-17 07:49:21,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:49:21,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:49:21,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 351 transitions. [2024-11-17 07:49:21,568 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5358778625954198 [2024-11-17 07:49:21,568 INFO L175 Difference]: Start difference. First operand has 108 places, 105 transitions, 233 flow. Second operand 5 states and 351 transitions. [2024-11-17 07:49:21,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 121 transitions, 397 flow [2024-11-17 07:49:21,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 121 transitions, 393 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:49:21,571 INFO L231 Difference]: Finished difference. Result has 109 places, 104 transitions, 241 flow [2024-11-17 07:49:21,573 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=227, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=241, PETRI_PLACES=109, PETRI_TRANSITIONS=104} [2024-11-17 07:49:21,574 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 2 predicate places. [2024-11-17 07:49:21,574 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 104 transitions, 241 flow [2024-11-17 07:49:21,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 57.8) internal successors, (289), 5 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:21,574 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:21,575 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:21,575 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 07:49:21,575 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-17 07:49:21,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:21,576 INFO L85 PathProgramCache]: Analyzing trace with hash -443083488, now seen corresponding path program 1 times [2024-11-17 07:49:21,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:21,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323218705] [2024-11-17 07:49:21,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:21,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:21,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:21,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:21,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:21,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323218705] [2024-11-17 07:49:21,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323218705] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:21,660 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:21,660 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:49:21,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030658582] [2024-11-17 07:49:21,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:21,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:49:21,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:21,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:49:21,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:49:21,674 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 54 out of 131 [2024-11-17 07:49:21,675 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 104 transitions, 241 flow. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:21,675 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:21,676 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 54 of 131 [2024-11-17 07:49:21,676 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:22,034 INFO L124 PetriNetUnfolderBase]: 936/2890 cut-off events. [2024-11-17 07:49:22,034 INFO L125 PetriNetUnfolderBase]: For 56/56 co-relation queries the response was YES. [2024-11-17 07:49:22,041 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4820 conditions, 2890 events. 936/2890 cut-off events. For 56/56 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 23817 event pairs, 270 based on Foata normal form. 36/2687 useless extension candidates. Maximal degree in co-relation 2388. Up to 1729 conditions per place. [2024-11-17 07:49:22,055 INFO L140 encePairwiseOnDemand]: 125/131 looper letters, 84 selfloop transitions, 3 changer transitions 0/137 dead transitions. [2024-11-17 07:49:22,055 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 137 transitions, 481 flow [2024-11-17 07:49:22,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:49:22,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:49:22,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 305 transitions. [2024-11-17 07:49:22,057 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5820610687022901 [2024-11-17 07:49:22,057 INFO L175 Difference]: Start difference. First operand has 109 places, 104 transitions, 241 flow. Second operand 4 states and 305 transitions. [2024-11-17 07:49:22,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 137 transitions, 481 flow [2024-11-17 07:49:22,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 137 transitions, 467 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 07:49:22,062 INFO L231 Difference]: Finished difference. Result has 107 places, 102 transitions, 233 flow [2024-11-17 07:49:22,062 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=131, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=102, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=233, PETRI_PLACES=107, PETRI_TRANSITIONS=102} [2024-11-17 07:49:22,063 INFO L277 CegarLoopForPetriNet]: 107 programPoint places, 0 predicate places. [2024-11-17 07:49:22,063 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 102 transitions, 233 flow [2024-11-17 07:49:22,064 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:22,064 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:22,064 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:22,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 07:49:22,064 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 18 more)] === [2024-11-17 07:49:22,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:22,065 INFO L85 PathProgramCache]: Analyzing trace with hash 1823881147, now seen corresponding path program 1 times [2024-11-17 07:49:22,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:22,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636767466] [2024-11-17 07:49:22,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:22,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:22,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 07:49:22,086 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 07:49:22,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 07:49:22,136 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 07:49:22,137 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-17 07:49:22,138 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 21 remaining) [2024-11-17 07:49:22,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 21 remaining) [2024-11-17 07:49:22,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 21 remaining) [2024-11-17 07:49:22,141 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 21 remaining) [2024-11-17 07:49:22,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 21 remaining) [2024-11-17 07:49:22,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 21 remaining) [2024-11-17 07:49:22,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 21 remaining) [2024-11-17 07:49:22,142 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 21 remaining) [2024-11-17 07:49:22,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 21 remaining) [2024-11-17 07:49:22,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 21 remaining) [2024-11-17 07:49:22,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 21 remaining) [2024-11-17 07:49:22,143 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 21 remaining) [2024-11-17 07:49:22,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 21 remaining) [2024-11-17 07:49:22,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 21 remaining) [2024-11-17 07:49:22,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 21 remaining) [2024-11-17 07:49:22,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 21 remaining) [2024-11-17 07:49:22,144 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 21 remaining) [2024-11-17 07:49:22,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 21 remaining) [2024-11-17 07:49:22,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 21 remaining) [2024-11-17 07:49:22,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 21 remaining) [2024-11-17 07:49:22,145 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 21 remaining) [2024-11-17 07:49:22,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 07:49:22,146 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-17 07:49:22,149 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-17 07:49:22,149 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-17 07:49:22,183 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-17 07:49:22,186 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 180 transitions, 376 flow [2024-11-17 07:49:22,215 INFO L124 PetriNetUnfolderBase]: 67/317 cut-off events. [2024-11-17 07:49:22,215 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-17 07:49:22,219 INFO L83 FinitePrefix]: Finished finitePrefix Result has 329 conditions, 317 events. 67/317 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1400 event pairs, 0 based on Foata normal form. 0/212 useless extension candidates. Maximal degree in co-relation 190. Up to 12 conditions per place. [2024-11-17 07:49:22,219 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 180 transitions, 376 flow [2024-11-17 07:49:22,223 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 146 places, 179 transitions, 374 flow [2024-11-17 07:49:22,224 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:49:22,225 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;@3e4d34ef, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:49:22,225 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-17 07:49:22,227 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:49:22,227 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-17 07:49:22,227 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:49:22,227 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:22,228 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 07:49:22,228 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-17 07:49:22,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:22,228 INFO L85 PathProgramCache]: Analyzing trace with hash 23674990, now seen corresponding path program 1 times [2024-11-17 07:49:22,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:22,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029831216] [2024-11-17 07:49:22,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:22,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:22,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:22,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:22,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:22,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029831216] [2024-11-17 07:49:22,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029831216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:22,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:22,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:49:22,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3172085] [2024-11-17 07:49:22,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:22,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:49:22,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:22,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:49:22,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:49:22,292 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 180 [2024-11-17 07:49:22,293 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 179 transitions, 374 flow. Second operand has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:22,293 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:22,293 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 180 [2024-11-17 07:49:22,293 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:28,691 INFO L124 PetriNetUnfolderBase]: 30585/68167 cut-off events. [2024-11-17 07:49:28,692 INFO L125 PetriNetUnfolderBase]: For 238/238 co-relation queries the response was YES. [2024-11-17 07:49:28,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 113844 conditions, 68167 events. 30585/68167 cut-off events. For 238/238 co-relation queries the response was YES. Maximal size of possible extension queue 2049. Compared 797397 event pairs, 27200 based on Foata normal form. 23455/85545 useless extension candidates. Maximal degree in co-relation 25182. Up to 23436 conditions per place. [2024-11-17 07:49:29,194 INFO L140 encePairwiseOnDemand]: 142/180 looper letters, 126 selfloop transitions, 5 changer transitions 0/208 dead transitions. [2024-11-17 07:49:29,194 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 208 transitions, 708 flow [2024-11-17 07:49:29,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:49:29,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:49:29,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 504 transitions. [2024-11-17 07:49:29,196 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7 [2024-11-17 07:49:29,197 INFO L175 Difference]: Start difference. First operand has 146 places, 179 transitions, 374 flow. Second operand 4 states and 504 transitions. [2024-11-17 07:49:29,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 208 transitions, 708 flow [2024-11-17 07:49:29,202 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 208 transitions, 708 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:49:29,204 INFO L231 Difference]: Finished difference. Result has 149 places, 147 transitions, 327 flow [2024-11-17 07:49:29,205 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=327, PETRI_PLACES=149, PETRI_TRANSITIONS=147} [2024-11-17 07:49:29,207 INFO L277 CegarLoopForPetriNet]: 146 programPoint places, 3 predicate places. [2024-11-17 07:49:29,207 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 147 transitions, 327 flow [2024-11-17 07:49:29,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 78.0) internal successors, (312), 4 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:29,207 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:29,207 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 07:49:29,208 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 07:49:29,208 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-17 07:49:29,208 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:29,208 INFO L85 PathProgramCache]: Analyzing trace with hash 23674956, now seen corresponding path program 1 times [2024-11-17 07:49:29,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:29,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1410308813] [2024-11-17 07:49:29,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:29,209 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:29,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:29,247 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:29,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:29,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1410308813] [2024-11-17 07:49:29,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1410308813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:29,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:29,249 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:49:29,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567712500] [2024-11-17 07:49:29,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:29,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:49:29,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:29,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:49:29,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:49:29,256 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 180 [2024-11-17 07:49:29,258 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 147 transitions, 327 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:29,258 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:29,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 180 [2024-11-17 07:49:29,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:34,162 INFO L124 PetriNetUnfolderBase]: 30600/68461 cut-off events. [2024-11-17 07:49:34,163 INFO L125 PetriNetUnfolderBase]: For 702/702 co-relation queries the response was YES. [2024-11-17 07:49:34,320 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115244 conditions, 68461 events. 30600/68461 cut-off events. For 702/702 co-relation queries the response was YES. Maximal size of possible extension queue 2051. Compared 802856 event pairs, 27846 based on Foata normal form. 1/62279 useless extension candidates. Maximal degree in co-relation 58250. Up to 45499 conditions per place. [2024-11-17 07:49:34,652 INFO L140 encePairwiseOnDemand]: 177/180 looper letters, 68 selfloop transitions, 2 changer transitions 0/146 dead transitions. [2024-11-17 07:49:34,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 146 transitions, 465 flow [2024-11-17 07:49:34,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:49:34,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:49:34,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 301 transitions. [2024-11-17 07:49:34,655 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5574074074074075 [2024-11-17 07:49:34,655 INFO L175 Difference]: Start difference. First operand has 149 places, 147 transitions, 327 flow. Second operand 3 states and 301 transitions. [2024-11-17 07:49:34,655 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 146 transitions, 465 flow [2024-11-17 07:49:34,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 146 transitions, 460 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:49:34,662 INFO L231 Difference]: Finished difference. Result has 148 places, 146 transitions, 324 flow [2024-11-17 07:49:34,664 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=320, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=324, PETRI_PLACES=148, PETRI_TRANSITIONS=146} [2024-11-17 07:49:34,666 INFO L277 CegarLoopForPetriNet]: 146 programPoint places, 2 predicate places. [2024-11-17 07:49:34,666 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 146 transitions, 324 flow [2024-11-17 07:49:34,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:34,667 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:34,667 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-17 07:49:34,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 07:49:34,668 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-17 07:49:34,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:34,668 INFO L85 PathProgramCache]: Analyzing trace with hash 733924259, now seen corresponding path program 1 times [2024-11-17 07:49:34,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:34,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235423468] [2024-11-17 07:49:34,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:34,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:34,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:34,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:34,718 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:34,718 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235423468] [2024-11-17 07:49:34,718 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235423468] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:34,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:34,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:49:34,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093926498] [2024-11-17 07:49:34,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:34,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:49:34,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:34,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:49:34,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:49:34,724 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 180 [2024-11-17 07:49:34,726 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 146 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:34,726 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:34,726 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 180 [2024-11-17 07:49:34,726 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:39,678 INFO L124 PetriNetUnfolderBase]: 30600/68460 cut-off events. [2024-11-17 07:49:39,679 INFO L125 PetriNetUnfolderBase]: For 702/702 co-relation queries the response was YES. [2024-11-17 07:49:39,822 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114881 conditions, 68460 events. 30600/68460 cut-off events. For 702/702 co-relation queries the response was YES. Maximal size of possible extension queue 2051. Compared 802657 event pairs, 27846 based on Foata normal form. 1/62278 useless extension candidates. Maximal degree in co-relation 58250. Up to 45499 conditions per place. [2024-11-17 07:49:40,039 INFO L140 encePairwiseOnDemand]: 177/180 looper letters, 67 selfloop transitions, 2 changer transitions 0/145 dead transitions. [2024-11-17 07:49:40,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 145 transitions, 460 flow [2024-11-17 07:49:40,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:49:40,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:49:40,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2024-11-17 07:49:40,041 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5555555555555556 [2024-11-17 07:49:40,041 INFO L175 Difference]: Start difference. First operand has 148 places, 146 transitions, 324 flow. Second operand 3 states and 300 transitions. [2024-11-17 07:49:40,041 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 145 transitions, 460 flow [2024-11-17 07:49:40,043 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 145 transitions, 456 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:49:40,045 INFO L231 Difference]: Finished difference. Result has 147 places, 145 transitions, 322 flow [2024-11-17 07:49:40,045 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=318, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=322, PETRI_PLACES=147, PETRI_TRANSITIONS=145} [2024-11-17 07:49:40,046 INFO L277 CegarLoopForPetriNet]: 146 programPoint places, 1 predicate places. [2024-11-17 07:49:40,046 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 145 transitions, 322 flow [2024-11-17 07:49:40,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:40,046 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:40,047 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-17 07:49:40,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 07:49:40,047 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-17 07:49:40,047 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:40,047 INFO L85 PathProgramCache]: Analyzing trace with hash 733925351, now seen corresponding path program 1 times [2024-11-17 07:49:40,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:40,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825827926] [2024-11-17 07:49:40,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:40,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:40,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:40,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:40,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:40,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825827926] [2024-11-17 07:49:40,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825827926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:40,110 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:40,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:49:40,111 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567608467] [2024-11-17 07:49:40,111 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:40,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:49:40,114 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:40,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:49:40,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:49:40,125 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 180 [2024-11-17 07:49:40,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 145 transitions, 322 flow. Second operand has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:40,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:40,127 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 180 [2024-11-17 07:49:40,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:44,798 INFO L124 PetriNetUnfolderBase]: 30585/68164 cut-off events. [2024-11-17 07:49:44,798 INFO L125 PetriNetUnfolderBase]: For 702/702 co-relation queries the response was YES. [2024-11-17 07:49:44,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 114570 conditions, 68164 events. 30585/68164 cut-off events. For 702/702 co-relation queries the response was YES. Maximal size of possible extension queue 2048. Compared 796979 event pairs, 27200 based on Foata normal form. 1/62030 useless extension candidates. Maximal degree in co-relation 57940. Up to 44091 conditions per place. [2024-11-17 07:49:45,469 INFO L140 encePairwiseOnDemand]: 173/180 looper letters, 96 selfloop transitions, 7 changer transitions 0/178 dead transitions. [2024-11-17 07:49:45,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 178 transitions, 594 flow [2024-11-17 07:49:45,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:49:45,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:49:45,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 488 transitions. [2024-11-17 07:49:45,472 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5422222222222223 [2024-11-17 07:49:45,472 INFO L175 Difference]: Start difference. First operand has 147 places, 145 transitions, 322 flow. Second operand 5 states and 488 transitions. [2024-11-17 07:49:45,472 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 178 transitions, 594 flow [2024-11-17 07:49:45,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 178 transitions, 590 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:49:45,476 INFO L231 Difference]: Finished difference. Result has 148 places, 144 transitions, 330 flow [2024-11-17 07:49:45,476 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=330, PETRI_PLACES=148, PETRI_TRANSITIONS=144} [2024-11-17 07:49:45,477 INFO L277 CegarLoopForPetriNet]: 146 programPoint places, 2 predicate places. [2024-11-17 07:49:45,477 INFO L471 AbstractCegarLoop]: Abstraction has has 148 places, 144 transitions, 330 flow [2024-11-17 07:49:45,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 77.8) internal successors, (389), 5 states have internal predecessors, (389), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:45,478 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:45,478 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:45,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-17 07:49:45,478 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-17 07:49:45,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:45,479 INFO L85 PathProgramCache]: Analyzing trace with hash 331457987, now seen corresponding path program 1 times [2024-11-17 07:49:45,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:45,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788153152] [2024-11-17 07:49:45,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:45,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:45,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:45,527 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:45,527 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:45,528 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788153152] [2024-11-17 07:49:45,528 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788153152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:45,528 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:45,528 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:49:45,528 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995670833] [2024-11-17 07:49:45,529 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:45,529 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:49:45,529 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:45,530 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:49:45,530 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:49:45,538 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 180 [2024-11-17 07:49:45,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 144 transitions, 330 flow. Second operand has 4 states, 4 states have (on average 76.25) internal successors, (305), 4 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:45,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:45,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 180 [2024-11-17 07:49:45,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:50,491 INFO L124 PetriNetUnfolderBase]: 36152/77859 cut-off events. [2024-11-17 07:49:50,491 INFO L125 PetriNetUnfolderBase]: For 1252/1252 co-relation queries the response was YES. [2024-11-17 07:49:50,670 INFO L83 FinitePrefix]: Finished finitePrefix Result has 133639 conditions, 77859 events. 36152/77859 cut-off events. For 1252/1252 co-relation queries the response was YES. Maximal size of possible extension queue 2146. Compared 898574 event pairs, 16371 based on Foata normal form. 36/70571 useless extension candidates. Maximal degree in co-relation 64633. Up to 54024 conditions per place. [2024-11-17 07:49:50,917 INFO L140 encePairwiseOnDemand]: 174/180 looper letters, 108 selfloop transitions, 3 changer transitions 0/181 dead transitions. [2024-11-17 07:49:50,918 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 181 transitions, 626 flow [2024-11-17 07:49:50,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:49:50,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:49:50,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 409 transitions. [2024-11-17 07:49:50,920 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5680555555555555 [2024-11-17 07:49:50,920 INFO L175 Difference]: Start difference. First operand has 148 places, 144 transitions, 330 flow. Second operand 4 states and 409 transitions. [2024-11-17 07:49:50,920 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 181 transitions, 626 flow [2024-11-17 07:49:50,977 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 181 transitions, 612 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 07:49:50,979 INFO L231 Difference]: Finished difference. Result has 149 places, 146 transitions, 340 flow [2024-11-17 07:49:50,979 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=316, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=340, PETRI_PLACES=149, PETRI_TRANSITIONS=146} [2024-11-17 07:49:50,980 INFO L277 CegarLoopForPetriNet]: 146 programPoint places, 3 predicate places. [2024-11-17 07:49:50,980 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 146 transitions, 340 flow [2024-11-17 07:49:50,980 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 76.25) internal successors, (305), 4 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:50,981 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:50,981 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:50,981 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-17 07:49:50,981 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-17 07:49:50,981 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:50,981 INFO L85 PathProgramCache]: Analyzing trace with hash -335289951, now seen corresponding path program 1 times [2024-11-17 07:49:50,981 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:50,982 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2064034653] [2024-11-17 07:49:50,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:50,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:50,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:51,074 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:51,075 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:51,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2064034653] [2024-11-17 07:49:51,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2064034653] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:49:51,075 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1626203612] [2024-11-17 07:49:51,076 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:51,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:49:51,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:49:51,078 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:49:51,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 07:49:51,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:51,456 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:49:51,458 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:49:51,551 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:49:51,552 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:49:51,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1626203612] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:51,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:49:51,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-17 07:49:51,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531082669] [2024-11-17 07:49:51,553 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:51,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:49:51,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:51,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:49:51,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:49:51,567 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 180 [2024-11-17 07:49:51,568 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 146 transitions, 340 flow. Second operand has 6 states, 6 states have (on average 76.16666666666667) internal successors, (457), 6 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:51,568 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:51,568 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 180 [2024-11-17 07:49:51,568 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:49:56,549 INFO L124 PetriNetUnfolderBase]: 34073/69930 cut-off events. [2024-11-17 07:49:56,549 INFO L125 PetriNetUnfolderBase]: For 2308/2308 co-relation queries the response was YES. [2024-11-17 07:49:56,746 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125176 conditions, 69930 events. 34073/69930 cut-off events. For 2308/2308 co-relation queries the response was YES. Maximal size of possible extension queue 2009. Compared 782477 event pairs, 1836 based on Foata normal form. 648/65362 useless extension candidates. Maximal degree in co-relation 60846. Up to 40611 conditions per place. [2024-11-17 07:49:56,964 INFO L140 encePairwiseOnDemand]: 175/180 looper letters, 172 selfloop transitions, 6 changer transitions 0/248 dead transitions. [2024-11-17 07:49:56,964 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 248 transitions, 898 flow [2024-11-17 07:49:56,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:49:56,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:49:56,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 622 transitions. [2024-11-17 07:49:56,966 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.575925925925926 [2024-11-17 07:49:56,966 INFO L175 Difference]: Start difference. First operand has 149 places, 146 transitions, 340 flow. Second operand 6 states and 622 transitions. [2024-11-17 07:49:56,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 248 transitions, 898 flow [2024-11-17 07:49:56,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 248 transitions, 896 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:49:56,973 INFO L231 Difference]: Finished difference. Result has 152 places, 145 transitions, 346 flow [2024-11-17 07:49:56,973 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=334, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=346, PETRI_PLACES=152, PETRI_TRANSITIONS=145} [2024-11-17 07:49:56,974 INFO L277 CegarLoopForPetriNet]: 146 programPoint places, 6 predicate places. [2024-11-17 07:49:56,974 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 145 transitions, 346 flow [2024-11-17 07:49:56,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 76.16666666666667) internal successors, (457), 6 states have internal predecessors, (457), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:56,975 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:49:56,975 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:49:56,989 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-17 07:49:57,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-17 07:49:57,176 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-17 07:49:57,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:49:57,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1804053201, now seen corresponding path program 1 times [2024-11-17 07:49:57,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:49:57,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008464980] [2024-11-17 07:49:57,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:49:57,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:49:57,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:49:57,243 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-17 07:49:57,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:49:57,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008464980] [2024-11-17 07:49:57,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008464980] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:49:57,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:49:57,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:49:57,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334389495] [2024-11-17 07:49:57,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:49:57,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:49:57,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:49:57,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:49:57,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:49:57,258 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 180 [2024-11-17 07:49:57,259 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 145 transitions, 346 flow. Second operand has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:49:57,259 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:49:57,259 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 180 [2024-11-17 07:49:57,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:01,779 INFO L124 PetriNetUnfolderBase]: 32889/67750 cut-off events. [2024-11-17 07:50:01,779 INFO L125 PetriNetUnfolderBase]: For 5704/5704 co-relation queries the response was YES. [2024-11-17 07:50:01,937 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122566 conditions, 67750 events. 32889/67750 cut-off events. For 5704/5704 co-relation queries the response was YES. Maximal size of possible extension queue 1978. Compared 754933 event pairs, 1226 based on Foata normal form. 648/64036 useless extension candidates. Maximal degree in co-relation 59541. Up to 44495 conditions per place. [2024-11-17 07:50:02,151 INFO L140 encePairwiseOnDemand]: 175/180 looper letters, 137 selfloop transitions, 6 changer transitions 0/213 dead transitions. [2024-11-17 07:50:02,151 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 213 transitions, 766 flow [2024-11-17 07:50:02,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:50:02,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:50:02,153 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 437 transitions. [2024-11-17 07:50:02,154 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6069444444444444 [2024-11-17 07:50:02,154 INFO L175 Difference]: Start difference. First operand has 152 places, 145 transitions, 346 flow. Second operand 4 states and 437 transitions. [2024-11-17 07:50:02,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 213 transitions, 766 flow [2024-11-17 07:50:02,164 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 213 transitions, 756 flow, removed 1 selfloop flow, removed 4 redundant places. [2024-11-17 07:50:02,167 INFO L231 Difference]: Finished difference. Result has 151 places, 145 transitions, 352 flow [2024-11-17 07:50:02,168 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=180, PETRI_DIFFERENCE_MINUEND_FLOW=332, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=352, PETRI_PLACES=151, PETRI_TRANSITIONS=145} [2024-11-17 07:50:02,168 INFO L277 CegarLoopForPetriNet]: 146 programPoint places, 5 predicate places. [2024-11-17 07:50:02,169 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 145 transitions, 352 flow [2024-11-17 07:50:02,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 77.25) internal successors, (309), 4 states have internal predecessors, (309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:50:02,169 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:02,169 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:50:02,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-17 07:50:02,170 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting t_funErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-17 07:50:02,170 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:02,170 INFO L85 PathProgramCache]: Analyzing trace with hash 370003938, now seen corresponding path program 1 times [2024-11-17 07:50:02,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:02,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830721060] [2024-11-17 07:50:02,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:02,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:02,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:02,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:50:02,240 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:02,240 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830721060] [2024-11-17 07:50:02,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830721060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:50:02,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:50:02,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:50:02,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632715934] [2024-11-17 07:50:02,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:50:02,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:50:02,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:02,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:50:02,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:50:02,246 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 180 [2024-11-17 07:50:02,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 145 transitions, 352 flow. Second operand has 4 states, 4 states have (on average 80.25) internal successors, (321), 4 states have internal predecessors, (321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:50:02,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:02,248 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 180 [2024-11-17 07:50:02,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand