./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread/reorder_5.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/pthread/reorder_5.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 0517a9ebb69eeca4ecbb6ac063832eb703719698fb2ee670ca348e2c511f9dfd --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:33:02,414 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:33:02,506 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:33:02,513 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:33:02,514 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:33:02,546 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:33:02,547 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:33:02,547 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:33:02,548 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:33:02,549 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:33:02,549 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:33:02,550 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:33:02,550 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:33:02,551 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:33:02,551 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:33:02,565 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:33:02,565 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:33:02,565 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:33:02,569 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:33:02,569 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:33:02,570 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:33:02,570 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:33:02,570 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:33:02,571 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:33:02,571 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:33:02,571 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:33:02,571 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:33:02,571 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:33:02,572 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:33:02,572 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:33:02,572 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:33:02,572 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:33:02,573 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:33:02,573 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:33:02,574 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:33:02,575 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:33:02,575 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:33:02,576 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:33:02,576 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:33:02,576 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:33:02,577 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:33:02,577 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:33:02,577 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:33:02,577 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:33:02,578 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0517a9ebb69eeca4ecbb6ac063832eb703719698fb2ee670ca348e2c511f9dfd [2024-11-17 07:33:02,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:33:02,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:33:02,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:33:02,882 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:33:02,883 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:33:02,884 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/reorder_5.i [2024-11-17 07:33:04,329 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:33:04,646 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:33:04,647 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/reorder_5.i [2024-11-17 07:33:04,671 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdeb034f0/767c794ddf484b7e8999ac9daa5e3252/FLAG5cafcb590 [2024-11-17 07:33:04,907 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bdeb034f0/767c794ddf484b7e8999ac9daa5e3252 [2024-11-17 07:33:04,909 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:33:04,910 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:33:04,912 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:33:04,912 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:33:04,918 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:33:04,918 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:33:04" (1/1) ... [2024-11-17 07:33:04,919 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1afb8b0f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:04, skipping insertion in model container [2024-11-17 07:33:04,919 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:33:04" (1/1) ... [2024-11-17 07:33:04,968 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:33:05,500 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:33:05,510 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:33:05,573 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:33:05,660 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:33:05,660 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:05 WrapperNode [2024-11-17 07:33:05,660 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:33:05,662 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:33:05,662 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:33:05,662 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:33:05,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:05" (1/1) ... [2024-11-17 07:33:05,695 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:05" (1/1) ... [2024-11-17 07:33:05,727 INFO L138 Inliner]: procedures = 371, calls = 28, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 141 [2024-11-17 07:33:05,728 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:33:05,729 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:33:05,729 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:33:05,729 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:33:05,738 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:05" (1/1) ... [2024-11-17 07:33:05,739 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:05" (1/1) ... [2024-11-17 07:33:05,742 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:05" (1/1) ... [2024-11-17 07:33:05,774 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-11-17 07:33:05,774 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:05" (1/1) ... [2024-11-17 07:33:05,775 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:05" (1/1) ... [2024-11-17 07:33:05,787 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:05" (1/1) ... [2024-11-17 07:33:05,788 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:05" (1/1) ... [2024-11-17 07:33:05,789 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:05" (1/1) ... [2024-11-17 07:33:05,794 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:05" (1/1) ... [2024-11-17 07:33:05,797 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:33:05,802 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:33:05,802 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:33:05,802 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:33:05,803 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:05" (1/1) ... [2024-11-17 07:33:05,809 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:33:05,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:33:05,839 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 07:33:05,846 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 07:33:05,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-17 07:33:05,888 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 07:33:05,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 07:33:05,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-17 07:33:05,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 07:33:05,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 07:33:05,888 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 07:33:05,889 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2024-11-17 07:33:05,889 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2024-11-17 07:33:05,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 07:33:05,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 07:33:05,889 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-17 07:33:05,889 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:33:05,889 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2024-11-17 07:33:05,890 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2024-11-17 07:33:05,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:33:05,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 07:33:05,890 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 07:33:05,890 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:33:05,890 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:33:05,892 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 07:33:06,028 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:33:06,030 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:33:06,234 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1252: havoc main_~#setPool~0#1.base, main_~#setPool~0#1.offset; [2024-11-17 07:33:06,235 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1252-1: SUMMARY for call ULTIMATE.dealloc(main_~#setPool~0#1.base, main_~#setPool~0#1.offset); srcloc: null [2024-11-17 07:33:06,235 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1253: havoc main_~#checkPool~0#1.base, main_~#checkPool~0#1.offset; [2024-11-17 07:33:06,235 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1253-1: SUMMARY for call ULTIMATE.dealloc(main_~#checkPool~0#1.base, main_~#checkPool~0#1.offset); srcloc: null [2024-11-17 07:33:06,236 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:33:06,237 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:33:06,442 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:33:06,443 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:33:06,443 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:33:06 BoogieIcfgContainer [2024-11-17 07:33:06,444 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:33:06,446 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:33:06,447 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:33:06,450 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:33:06,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:33:04" (1/3) ... [2024-11-17 07:33:06,451 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d3b2b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:33:06, skipping insertion in model container [2024-11-17 07:33:06,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:33:05" (2/3) ... [2024-11-17 07:33:06,453 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d3b2b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:33:06, skipping insertion in model container [2024-11-17 07:33:06,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:33:06" (3/3) ... [2024-11-17 07:33:06,454 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_5.i [2024-11-17 07:33:06,471 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:33:06,471 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-17 07:33:06,472 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:33:06,523 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-17 07:33:06,561 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 54 places, 57 transitions, 134 flow [2024-11-17 07:33:06,600 INFO L124 PetriNetUnfolderBase]: 22/142 cut-off events. [2024-11-17 07:33:06,600 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-17 07:33:06,604 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 142 events. 22/142 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 503 event pairs, 0 based on Foata normal form. 0/96 useless extension candidates. Maximal degree in co-relation 71. Up to 8 conditions per place. [2024-11-17 07:33:06,604 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 57 transitions, 134 flow [2024-11-17 07:33:06,607 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 52 places, 54 transitions, 128 flow [2024-11-17 07:33:06,617 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:33:06,623 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;@e1c2f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:33:06,623 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-17 07:33:06,629 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:33:06,629 INFO L124 PetriNetUnfolderBase]: 2/16 cut-off events. [2024-11-17 07:33:06,629 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:33:06,632 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:33:06,633 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 07:33:06,633 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-17 07:33:06,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:33:06,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1393069814, now seen corresponding path program 1 times [2024-11-17 07:33:06,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:33:06,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283921693] [2024-11-17 07:33:06,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:33:06,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:33:06,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:33:06,979 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 07:33:06,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:33:06,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283921693] [2024-11-17 07:33:06,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283921693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:33:06,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:33:06,981 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:33:06,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069004248] [2024-11-17 07:33:06,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:33:06,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:33:06,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:33:07,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:33:07,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:33:07,056 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 57 [2024-11-17 07:33:07,059 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 54 transitions, 128 flow. Second operand has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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 07:33:07,059 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:33:07,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 57 [2024-11-17 07:33:07,061 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:33:07,281 INFO L124 PetriNetUnfolderBase]: 291/807 cut-off events. [2024-11-17 07:33:07,282 INFO L125 PetriNetUnfolderBase]: For 34/34 co-relation queries the response was YES. [2024-11-17 07:33:07,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1422 conditions, 807 events. 291/807 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4598 event pairs, 189 based on Foata normal form. 68/824 useless extension candidates. Maximal degree in co-relation 1029. Up to 392 conditions per place. [2024-11-17 07:33:07,292 INFO L140 encePairwiseOnDemand]: 43/57 looper letters, 41 selfloop transitions, 9 changer transitions 2/73 dead transitions. [2024-11-17 07:33:07,292 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 73 transitions, 282 flow [2024-11-17 07:33:07,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:33:07,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:33:07,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 148 transitions. [2024-11-17 07:33:07,306 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6491228070175439 [2024-11-17 07:33:07,309 INFO L175 Difference]: Start difference. First operand has 52 places, 54 transitions, 128 flow. Second operand 4 states and 148 transitions. [2024-11-17 07:33:07,310 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 73 transitions, 282 flow [2024-11-17 07:33:07,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 73 transitions, 282 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:33:07,317 INFO L231 Difference]: Finished difference. Result has 54 places, 52 transitions, 156 flow [2024-11-17 07:33:07,319 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=118, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=156, PETRI_PLACES=54, PETRI_TRANSITIONS=52} [2024-11-17 07:33:07,323 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 2 predicate places. [2024-11-17 07:33:07,324 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 52 transitions, 156 flow [2024-11-17 07:33:07,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.25) internal successors, (93), 4 states have internal predecessors, (93), 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 07:33:07,324 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:33:07,324 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:33:07,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:33:07,325 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-17 07:33:07,326 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:33:07,326 INFO L85 PathProgramCache]: Analyzing trace with hash 322791707, now seen corresponding path program 1 times [2024-11-17 07:33:07,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:33:07,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085579225] [2024-11-17 07:33:07,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:33:07,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:33:07,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:33:07,488 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 07:33:07,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:33:07,489 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085579225] [2024-11-17 07:33:07,489 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2085579225] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:33:07,489 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:33:07,489 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:33:07,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1225644447] [2024-11-17 07:33:07,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:33:07,491 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:33:07,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:33:07,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:33:07,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:33:07,514 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 22 out of 57 [2024-11-17 07:33:07,515 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 52 transitions, 156 flow. Second operand has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 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 07:33:07,516 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:33:07,516 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 22 of 57 [2024-11-17 07:33:07,516 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:33:07,725 INFO L124 PetriNetUnfolderBase]: 289/784 cut-off events. [2024-11-17 07:33:07,725 INFO L125 PetriNetUnfolderBase]: For 227/227 co-relation queries the response was YES. [2024-11-17 07:33:07,727 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1543 conditions, 784 events. 289/784 cut-off events. For 227/227 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 4391 event pairs, 131 based on Foata normal form. 40/786 useless extension candidates. Maximal degree in co-relation 1117. Up to 352 conditions per place. [2024-11-17 07:33:07,731 INFO L140 encePairwiseOnDemand]: 46/57 looper letters, 44 selfloop transitions, 9 changer transitions 0/72 dead transitions. [2024-11-17 07:33:07,732 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 72 transitions, 314 flow [2024-11-17 07:33:07,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:33:07,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:33:07,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 143 transitions. [2024-11-17 07:33:07,736 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6271929824561403 [2024-11-17 07:33:07,736 INFO L175 Difference]: Start difference. First operand has 54 places, 52 transitions, 156 flow. Second operand 4 states and 143 transitions. [2024-11-17 07:33:07,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 72 transitions, 314 flow [2024-11-17 07:33:07,740 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 72 transitions, 312 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:33:07,742 INFO L231 Difference]: Finished difference. Result has 54 places, 50 transitions, 168 flow [2024-11-17 07:33:07,742 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=57, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=168, PETRI_PLACES=54, PETRI_TRANSITIONS=50} [2024-11-17 07:33:07,743 INFO L277 CegarLoopForPetriNet]: 52 programPoint places, 2 predicate places. [2024-11-17 07:33:07,744 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 50 transitions, 168 flow [2024-11-17 07:33:07,744 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.5) internal successors, (94), 4 states have internal predecessors, (94), 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 07:33:07,744 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:33:07,744 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 07:33:07,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 07:33:07,745 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-17 07:33:07,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:33:07,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1847043590, now seen corresponding path program 1 times [2024-11-17 07:33:07,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:33:07,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384917213] [2024-11-17 07:33:07,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:33:07,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:33:07,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 07:33:07,793 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 07:33:07,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 07:33:07,837 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 07:33:07,838 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-17 07:33:07,840 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-11-17 07:33:07,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-11-17 07:33:07,842 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-17 07:33:07,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-17 07:33:07,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-11-17 07:33:07,843 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-11-17 07:33:07,844 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-17 07:33:07,844 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-17 07:33:07,844 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-17 07:33:07,844 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 10 remaining) [2024-11-17 07:33:07,845 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 07:33:07,846 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-17 07:33:07,851 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-17 07:33:07,851 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-17 07:33:07,879 INFO L143 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2024-11-17 07:33:07,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 68 places, 71 transitions, 186 flow [2024-11-17 07:33:07,940 INFO L124 PetriNetUnfolderBase]: 101/519 cut-off events. [2024-11-17 07:33:07,941 INFO L125 PetriNetUnfolderBase]: For 72/72 co-relation queries the response was YES. [2024-11-17 07:33:07,943 INFO L83 FinitePrefix]: Finished finitePrefix Result has 608 conditions, 519 events. 101/519 cut-off events. For 72/72 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2773 event pairs, 2 based on Foata normal form. 0/355 useless extension candidates. Maximal degree in co-relation 309. Up to 32 conditions per place. [2024-11-17 07:33:07,943 INFO L82 GeneralOperation]: Start removeDead. Operand has 68 places, 71 transitions, 186 flow [2024-11-17 07:33:07,945 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 66 places, 68 transitions, 180 flow [2024-11-17 07:33:07,946 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:33:07,949 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;@e1c2f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:33:07,950 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-17 07:33:07,953 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:33:07,954 INFO L124 PetriNetUnfolderBase]: 2/15 cut-off events. [2024-11-17 07:33:07,954 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:33:07,954 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:33:07,955 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 07:33:07,955 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-17 07:33:07,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:33:07,956 INFO L85 PathProgramCache]: Analyzing trace with hash -860631330, now seen corresponding path program 1 times [2024-11-17 07:33:07,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:33:07,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140858849] [2024-11-17 07:33:07,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:33:07,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:33:07,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:33:08,058 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 07:33:08,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:33:08,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140858849] [2024-11-17 07:33:08,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140858849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:33:08,059 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:33:08,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:33:08,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89599624] [2024-11-17 07:33:08,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:33:08,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:33:08,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:33:08,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:33:08,061 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:33:08,077 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 71 [2024-11-17 07:33:08,078 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 68 transitions, 180 flow. Second operand has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:33:08,078 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:33:08,078 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 71 [2024-11-17 07:33:08,078 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:33:10,936 INFO L124 PetriNetUnfolderBase]: 16821/29765 cut-off events. [2024-11-17 07:33:10,937 INFO L125 PetriNetUnfolderBase]: For 2548/2548 co-relation queries the response was YES. [2024-11-17 07:33:11,021 INFO L83 FinitePrefix]: Finished finitePrefix Result has 55606 conditions, 29765 events. 16821/29765 cut-off events. For 2548/2548 co-relation queries the response was YES. Maximal size of possible extension queue 774. Compared 250104 event pairs, 7893 based on Foata normal form. 1276/29308 useless extension candidates. Maximal degree in co-relation 31591. Up to 12614 conditions per place. [2024-11-17 07:33:11,181 INFO L140 encePairwiseOnDemand]: 57/71 looper letters, 71 selfloop transitions, 9 changer transitions 0/103 dead transitions. [2024-11-17 07:33:11,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 103 transitions, 434 flow [2024-11-17 07:33:11,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:33:11,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:33:11,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 184 transitions. [2024-11-17 07:33:11,186 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.647887323943662 [2024-11-17 07:33:11,186 INFO L175 Difference]: Start difference. First operand has 66 places, 68 transitions, 180 flow. Second operand 4 states and 184 transitions. [2024-11-17 07:33:11,186 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 103 transitions, 434 flow [2024-11-17 07:33:11,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 103 transitions, 434 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:33:11,202 INFO L231 Difference]: Finished difference. Result has 72 places, 73 transitions, 246 flow [2024-11-17 07:33:11,202 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=174, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=246, PETRI_PLACES=72, PETRI_TRANSITIONS=73} [2024-11-17 07:33:11,204 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 6 predicate places. [2024-11-17 07:33:11,205 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 73 transitions, 246 flow [2024-11-17 07:33:11,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.25) internal successors, (101), 4 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:33:11,205 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:33:11,205 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:33:11,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 07:33:11,206 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-17 07:33:11,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:33:11,207 INFO L85 PathProgramCache]: Analyzing trace with hash -988174167, now seen corresponding path program 1 times [2024-11-17 07:33:11,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:33:11,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2011639744] [2024-11-17 07:33:11,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:33:11,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:33:11,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:33:11,287 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 07:33:11,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:33:11,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2011639744] [2024-11-17 07:33:11,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2011639744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:33:11,288 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:33:11,288 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:33:11,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [387354367] [2024-11-17 07:33:11,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:33:11,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:33:11,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:33:11,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:33:11,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:33:11,306 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 71 [2024-11-17 07:33:11,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 73 transitions, 246 flow. Second operand has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:33:11,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:33:11,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 71 [2024-11-17 07:33:11,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:33:14,058 INFO L124 PetriNetUnfolderBase]: 18645/31832 cut-off events. [2024-11-17 07:33:14,058 INFO L125 PetriNetUnfolderBase]: For 8468/8480 co-relation queries the response was YES. [2024-11-17 07:33:14,114 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64461 conditions, 31832 events. 18645/31832 cut-off events. For 8468/8480 co-relation queries the response was YES. Maximal size of possible extension queue 774. Compared 259489 event pairs, 7723 based on Foata normal form. 168/30507 useless extension candidates. Maximal degree in co-relation 36695. Up to 14005 conditions per place. [2024-11-17 07:33:14,239 INFO L140 encePairwiseOnDemand]: 60/71 looper letters, 77 selfloop transitions, 9 changer transitions 0/109 dead transitions. [2024-11-17 07:33:14,239 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 109 transitions, 514 flow [2024-11-17 07:33:14,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:33:14,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:33:14,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 184 transitions. [2024-11-17 07:33:14,241 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.647887323943662 [2024-11-17 07:33:14,241 INFO L175 Difference]: Start difference. First operand has 72 places, 73 transitions, 246 flow. Second operand 4 states and 184 transitions. [2024-11-17 07:33:14,241 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 109 transitions, 514 flow [2024-11-17 07:33:14,245 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 109 transitions, 514 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:33:14,247 INFO L231 Difference]: Finished difference. Result has 77 places, 74 transitions, 282 flow [2024-11-17 07:33:14,247 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=282, PETRI_PLACES=77, PETRI_TRANSITIONS=74} [2024-11-17 07:33:14,248 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 11 predicate places. [2024-11-17 07:33:14,248 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 74 transitions, 282 flow [2024-11-17 07:33:14,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 25.5) internal successors, (102), 4 states have internal predecessors, (102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:33:14,248 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:33:14,249 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 07:33:14,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 07:33:14,249 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-17 07:33:14,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:33:14,249 INFO L85 PathProgramCache]: Analyzing trace with hash -1491641558, now seen corresponding path program 1 times [2024-11-17 07:33:14,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:33:14,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705233175] [2024-11-17 07:33:14,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:33:14,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:33:14,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:33:14,329 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 07:33:14,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:33:14,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705233175] [2024-11-17 07:33:14,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705233175] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:33:14,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120475489] [2024-11-17 07:33:14,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:33:14,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:33:14,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:33:14,334 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 07:33:14,335 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 07:33:14,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:33:14,422 INFO L255 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:33:14,424 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:33:14,486 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 07:33:14,486 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:33:14,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120475489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:33:14,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:33:14,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-17 07:33:14,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350238982] [2024-11-17 07:33:14,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:33:14,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:33:14,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:33:14,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:33:14,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:33:14,516 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 71 [2024-11-17 07:33:14,517 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 74 transitions, 282 flow. Second operand has 6 states, 6 states have (on average 25.5) internal successors, (153), 6 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:33:14,517 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:33:14,517 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 71 [2024-11-17 07:33:14,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:33:16,676 INFO L124 PetriNetUnfolderBase]: 16797/29800 cut-off events. [2024-11-17 07:33:16,677 INFO L125 PetriNetUnfolderBase]: For 16963/16963 co-relation queries the response was YES. [2024-11-17 07:33:16,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63198 conditions, 29800 events. 16797/29800 cut-off events. For 16963/16963 co-relation queries the response was YES. Maximal size of possible extension queue 774. Compared 250892 event pairs, 5341 based on Foata normal form. 16/28396 useless extension candidates. Maximal degree in co-relation 35839. Up to 12614 conditions per place. [2024-11-17 07:33:16,845 INFO L140 encePairwiseOnDemand]: 61/71 looper letters, 80 selfloop transitions, 11 changer transitions 0/114 dead transitions. [2024-11-17 07:33:16,846 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 114 transitions, 566 flow [2024-11-17 07:33:16,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:33:16,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:33:16,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 236 transitions. [2024-11-17 07:33:16,847 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5539906103286385 [2024-11-17 07:33:16,847 INFO L175 Difference]: Start difference. First operand has 77 places, 74 transitions, 282 flow. Second operand 6 states and 236 transitions. [2024-11-17 07:33:16,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 114 transitions, 566 flow [2024-11-17 07:33:16,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 114 transitions, 558 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:33:16,857 INFO L231 Difference]: Finished difference. Result has 80 places, 73 transitions, 292 flow [2024-11-17 07:33:16,858 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=292, PETRI_PLACES=80, PETRI_TRANSITIONS=73} [2024-11-17 07:33:16,858 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 14 predicate places. [2024-11-17 07:33:16,859 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 73 transitions, 292 flow [2024-11-17 07:33:16,859 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.5) internal successors, (153), 6 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:33:16,859 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:33:16,859 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1] [2024-11-17 07:33:16,880 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 07:33:17,063 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,SelfDestructingSolverStorable5 [2024-11-17 07:33:17,064 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-17 07:33:17,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:33:17,066 INFO L85 PathProgramCache]: Analyzing trace with hash 1003752288, now seen corresponding path program 1 times [2024-11-17 07:33:17,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:33:17,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765369557] [2024-11-17 07:33:17,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:33:17,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:33:17,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:33:17,162 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:33:17,166 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:33:17,166 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765369557] [2024-11-17 07:33:17,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765369557] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:33:17,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419894595] [2024-11-17 07:33:17,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:33:17,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:33:17,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:33:17,171 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:33:17,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 07:33:17,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:33:17,261 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:33:17,262 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:33:17,302 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:33:17,302 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:33:17,361 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:33:17,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419894595] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:33:17,362 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:33:17,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-17 07:33:17,362 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481597557] [2024-11-17 07:33:17,363 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:33:17,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 07:33:17,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:33:17,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 07:33:17,364 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-17 07:33:17,413 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 71 [2024-11-17 07:33:17,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 73 transitions, 292 flow. Second operand has 12 states, 12 states have (on average 25.916666666666668) internal successors, (311), 12 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:33:17,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:33:17,414 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 71 [2024-11-17 07:33:17,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:33:19,570 INFO L124 PetriNetUnfolderBase]: 16773/29787 cut-off events. [2024-11-17 07:33:19,570 INFO L125 PetriNetUnfolderBase]: For 20298/20298 co-relation queries the response was YES. [2024-11-17 07:33:19,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 63975 conditions, 29787 events. 16773/29787 cut-off events. For 20298/20298 co-relation queries the response was YES. Maximal size of possible extension queue 774. Compared 250998 event pairs, 6081 based on Foata normal form. 16/28403 useless extension candidates. Maximal degree in co-relation 36277. Up to 12614 conditions per place. [2024-11-17 07:33:19,767 INFO L140 encePairwiseOnDemand]: 61/71 looper letters, 86 selfloop transitions, 12 changer transitions 0/121 dead transitions. [2024-11-17 07:33:19,768 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 121 transitions, 614 flow [2024-11-17 07:33:19,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 07:33:19,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 07:33:19,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 267 transitions. [2024-11-17 07:33:19,770 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5372233400402414 [2024-11-17 07:33:19,770 INFO L175 Difference]: Start difference. First operand has 80 places, 73 transitions, 292 flow. Second operand 7 states and 267 transitions. [2024-11-17 07:33:19,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 121 transitions, 614 flow [2024-11-17 07:33:19,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 121 transitions, 588 flow, removed 2 selfloop flow, removed 4 redundant places. [2024-11-17 07:33:19,784 INFO L231 Difference]: Finished difference. Result has 81 places, 73 transitions, 296 flow [2024-11-17 07:33:19,785 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=296, PETRI_PLACES=81, PETRI_TRANSITIONS=73} [2024-11-17 07:33:19,786 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 15 predicate places. [2024-11-17 07:33:19,786 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 73 transitions, 296 flow [2024-11-17 07:33:19,786 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 25.916666666666668) internal successors, (311), 12 states have internal predecessors, (311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:33:19,787 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:33:19,787 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:33:19,804 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 07:33:19,987 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-17 07:33:19,988 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-17 07:33:19,989 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:33:19,989 INFO L85 PathProgramCache]: Analyzing trace with hash 611619370, now seen corresponding path program 1 times [2024-11-17 07:33:19,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:33:19,990 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111770892] [2024-11-17 07:33:19,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:33:19,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:33:20,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:33:20,250 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 07:33:20,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:33:20,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111770892] [2024-11-17 07:33:20,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111770892] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:33:20,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [559155363] [2024-11-17 07:33:20,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:33:20,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:33:20,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:33:20,258 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:33:20,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 07:33:20,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:33:20,344 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:33:20,345 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:33:20,386 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 07:33:20,386 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:33:20,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [559155363] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:33:20,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:33:20,386 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-17 07:33:20,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1273059932] [2024-11-17 07:33:20,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:33:20,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:33:20,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:33:20,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:33:20,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:33:20,417 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 71 [2024-11-17 07:33:20,417 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 73 transitions, 296 flow. Second operand has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:33:20,417 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:33:20,418 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 71 [2024-11-17 07:33:20,418 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:33:22,507 INFO L124 PetriNetUnfolderBase]: 17709/30909 cut-off events. [2024-11-17 07:33:22,508 INFO L125 PetriNetUnfolderBase]: For 20599/20599 co-relation queries the response was YES. [2024-11-17 07:33:22,559 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66364 conditions, 30909 events. 17709/30909 cut-off events. For 20599/20599 co-relation queries the response was YES. Maximal size of possible extension queue 774. Compared 257269 event pairs, 5745 based on Foata normal form. 336/29861 useless extension candidates. Maximal degree in co-relation 37591. Up to 12366 conditions per place. [2024-11-17 07:33:22,660 INFO L140 encePairwiseOnDemand]: 61/71 looper letters, 98 selfloop transitions, 12 changer transitions 0/131 dead transitions. [2024-11-17 07:33:22,661 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 131 transitions, 654 flow [2024-11-17 07:33:22,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:33:22,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:33:22,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 254 transitions. [2024-11-17 07:33:22,663 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.596244131455399 [2024-11-17 07:33:22,663 INFO L175 Difference]: Start difference. First operand has 81 places, 73 transitions, 296 flow. Second operand 6 states and 254 transitions. [2024-11-17 07:33:22,663 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 131 transitions, 654 flow [2024-11-17 07:33:22,678 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 131 transitions, 630 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-17 07:33:22,681 INFO L231 Difference]: Finished difference. Result has 80 places, 72 transitions, 292 flow [2024-11-17 07:33:22,681 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=71, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=292, PETRI_PLACES=80, PETRI_TRANSITIONS=72} [2024-11-17 07:33:22,683 INFO L277 CegarLoopForPetriNet]: 66 programPoint places, 14 predicate places. [2024-11-17 07:33:22,683 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 72 transitions, 292 flow [2024-11-17 07:33:22,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 25.666666666666668) internal successors, (154), 6 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:33:22,683 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:33:22,684 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 2, 2, 1, 1, 1, 1] [2024-11-17 07:33:22,700 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-17 07:33:22,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:33:22,885 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-17 07:33:22,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:33:22,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1222484354, now seen corresponding path program 1 times [2024-11-17 07:33:22,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:33:22,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086240819] [2024-11-17 07:33:22,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:33:22,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:33:22,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 07:33:22,925 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-17 07:33:22,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-17 07:33:22,951 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-17 07:33:22,952 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-17 07:33:22,952 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-11-17 07:33:22,952 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-11-17 07:33:22,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-17 07:33:22,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-17 07:33:22,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-11-17 07:33:22,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-11-17 07:33:22,953 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-17 07:33:22,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-17 07:33:22,954 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-17 07:33:22,955 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 10 remaining) [2024-11-17 07:33:22,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 07:33:22,955 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-17 07:33:22,958 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-17 07:33:22,958 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-17 07:33:22,990 INFO L143 ThreadInstanceAdder]: Constructed 12 joinOtherThreadTransitions. [2024-11-17 07:33:22,993 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 82 places, 85 transitions, 242 flow [2024-11-17 07:33:23,130 INFO L124 PetriNetUnfolderBase]: 484/1910 cut-off events. [2024-11-17 07:33:23,130 INFO L125 PetriNetUnfolderBase]: For 419/419 co-relation queries the response was YES. [2024-11-17 07:33:23,135 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2346 conditions, 1910 events. 484/1910 cut-off events. For 419/419 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 13058 event pairs, 64 based on Foata normal form. 0/1332 useless extension candidates. Maximal degree in co-relation 1178. Up to 192 conditions per place. [2024-11-17 07:33:23,136 INFO L82 GeneralOperation]: Start removeDead. Operand has 82 places, 85 transitions, 242 flow [2024-11-17 07:33:23,145 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 80 places, 82 transitions, 236 flow [2024-11-17 07:33:23,146 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:33:23,146 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;@e1c2f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:33:23,147 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-17 07:33:23,149 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:33:23,149 INFO L124 PetriNetUnfolderBase]: 2/16 cut-off events. [2024-11-17 07:33:23,150 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:33:23,150 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:33:23,150 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 07:33:23,150 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 7 more)] === [2024-11-17 07:33:23,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:33:23,151 INFO L85 PathProgramCache]: Analyzing trace with hash 1594803206, now seen corresponding path program 1 times [2024-11-17 07:33:23,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:33:23,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688663067] [2024-11-17 07:33:23,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:33:23,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:33:23,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:33:23,202 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 07:33:23,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:33:23,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688663067] [2024-11-17 07:33:23,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688663067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:33:23,203 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:33:23,203 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:33:23,203 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5791802] [2024-11-17 07:33:23,203 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:33:23,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:33:23,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:33:23,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:33:23,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:33:23,222 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 85 [2024-11-17 07:33:23,222 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 82 transitions, 236 flow. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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 07:33:23,222 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:33:23,222 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 85 [2024-11-17 07:33:23,223 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand