./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ac583c9331a2ad916f4c22969f16915d9226d22c75c23a992e6ef02ec672d4b3 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 23:59:58,690 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 23:59:58,755 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-11 23:59:58,765 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 23:59:58,765 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 23:59:58,790 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 23:59:58,791 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 23:59:58,792 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 23:59:58,792 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 23:59:58,793 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 23:59:58,795 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 23:59:58,795 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 23:59:58,796 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 23:59:58,796 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 23:59:58,796 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 23:59:58,799 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 23:59:58,800 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 23:59:58,800 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 23:59:58,800 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 23:59:58,800 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 23:59:58,801 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 23:59:58,801 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 23:59:58,801 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 23:59:58,802 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 23:59:58,802 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 23:59:58,802 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-11 23:59:58,803 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-11 23:59:58,803 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 23:59:58,803 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 23:59:58,803 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 23:59:58,804 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 23:59:58,804 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 23:59:58,804 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 23:59:58,805 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 23:59:58,805 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 23:59:58,805 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 23:59:58,806 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 23:59:58,806 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 23:59:58,806 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 23:59:58,806 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 23:59:58,807 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 23:59:58,807 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 23:59:58,808 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 23:59:58,808 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 23:59:58,809 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ac583c9331a2ad916f4c22969f16915d9226d22c75c23a992e6ef02ec672d4b3 [2024-10-11 23:59:59,089 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 23:59:59,109 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 23:59:59,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 23:59:59,113 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 23:59:59,114 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 23:59:59,115 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2024-10-12 00:00:00,589 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-12 00:00:00,896 INFO L384 CDTParser]: Found 1 translation units. [2024-10-12 00:00:00,898 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_91-arrayloop2_racefree.i [2024-10-12 00:00:00,917 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/334d47607/4e0c863e7c2c48dc81cd31e71a3827fe/FLAG9d736228d [2024-10-12 00:00:00,930 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/334d47607/4e0c863e7c2c48dc81cd31e71a3827fe [2024-10-12 00:00:00,933 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-12 00:00:00,934 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-12 00:00:00,935 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-12 00:00:00,935 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-12 00:00:00,939 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-12 00:00:00,940 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:00:00" (1/1) ... [2024-10-12 00:00:00,941 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72c3ac47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:00:00, skipping insertion in model container [2024-10-12 00:00:00,941 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 12:00:00" (1/1) ... [2024-10-12 00:00:00,996 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-12 00:00:01,481 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-12 00:00:01,482 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-12 00:00:01,482 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-12 00:00:01,483 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-12 00:00:01,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:00:01,560 INFO L200 MainTranslator]: Completed pre-run [2024-10-12 00:00:01,603 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-12 00:00:01,603 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-12 00:00:01,604 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-12 00:00:01,604 WARN L1659 CHandler]: Possible shadowing of function new [2024-10-12 00:00:01,619 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-12 00:00:01,693 INFO L204 MainTranslator]: Completed translation [2024-10-12 00:00:01,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:00:01 WrapperNode [2024-10-12 00:00:01,694 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-12 00:00:01,695 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-12 00:00:01,695 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-12 00:00:01,695 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-12 00:00:01,704 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:00:01" (1/1) ... [2024-10-12 00:00:01,730 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:00:01" (1/1) ... [2024-10-12 00:00:01,771 INFO L138 Inliner]: procedures = 278, calls = 50, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 213 [2024-10-12 00:00:01,775 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-12 00:00:01,776 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-12 00:00:01,776 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-12 00:00:01,777 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-12 00:00:01,787 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:00:01" (1/1) ... [2024-10-12 00:00:01,788 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:00:01" (1/1) ... [2024-10-12 00:00:01,796 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:00:01" (1/1) ... [2024-10-12 00:00:01,820 INFO L175 MemorySlicer]: Split 28 memory accesses to 4 slices as follows [2, 2, 19, 5]. 68 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 0, 0, 5]. The 14 writes are split as follows [0, 1, 13, 0]. [2024-10-12 00:00:01,821 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:00:01" (1/1) ... [2024-10-12 00:00:01,821 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:00:01" (1/1) ... [2024-10-12 00:00:01,841 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:00:01" (1/1) ... [2024-10-12 00:00:01,848 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:00:01" (1/1) ... [2024-10-12 00:00:01,855 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:00:01" (1/1) ... [2024-10-12 00:00:01,860 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:00:01" (1/1) ... [2024-10-12 00:00:01,865 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-12 00:00:01,870 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-12 00:00:01,870 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-12 00:00:01,870 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-12 00:00:01,871 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:00:01" (1/1) ... [2024-10-12 00:00:01,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-12 00:00:01,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:00:01,912 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-12 00:00:01,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-12 00:00:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-12 00:00:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-12 00:00:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-12 00:00:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-12 00:00:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-12 00:00:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-12 00:00:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-12 00:00:01,953 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-12 00:00:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-12 00:00:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-12 00:00:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-12 00:00:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-12 00:00:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-12 00:00:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-12 00:00:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-12 00:00:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-12 00:00:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-12 00:00:01,954 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-12 00:00:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-12 00:00:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-12 00:00:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-12 00:00:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-12 00:00:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-10-12 00:00:01,955 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-10-12 00:00:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-12 00:00:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-12 00:00:01,955 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-12 00:00:01,956 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-12 00:00:01,956 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-12 00:00:01,956 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-12 00:00:01,960 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-12 00:00:02,214 INFO L238 CfgBuilder]: Building ICFG [2024-10-12 00:00:02,217 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-12 00:00:02,583 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-12 00:00:02,584 INFO L287 CfgBuilder]: Performing block encoding [2024-10-12 00:00:02,867 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-12 00:00:02,868 INFO L314 CfgBuilder]: Removed 16 assume(true) statements. [2024-10-12 00:00:02,869 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:00:02 BoogieIcfgContainer [2024-10-12 00:00:02,869 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-12 00:00:02,872 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-12 00:00:02,872 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-12 00:00:02,876 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-12 00:00:02,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 12:00:00" (1/3) ... [2024-10-12 00:00:02,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c56fa93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 12:00:02, skipping insertion in model container [2024-10-12 00:00:02,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 12:00:01" (2/3) ... [2024-10-12 00:00:02,878 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c56fa93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 12:00:02, skipping insertion in model container [2024-10-12 00:00:02,878 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 12:00:02" (3/3) ... [2024-10-12 00:00:02,880 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_91-arrayloop2_racefree.i [2024-10-12 00:00:02,898 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-12 00:00:02,899 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-10-12 00:00:02,899 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-12 00:00:02,963 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-10-12 00:00:03,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 74 places, 87 transitions, 181 flow [2024-10-12 00:00:03,056 INFO L124 PetriNetUnfolderBase]: 16/91 cut-off events. [2024-10-12 00:00:03,056 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-12 00:00:03,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 96 conditions, 91 events. 16/91 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 261 event pairs, 0 based on Foata normal form. 0/56 useless extension candidates. Maximal degree in co-relation 62. Up to 4 conditions per place. [2024-10-12 00:00:03,060 INFO L82 GeneralOperation]: Start removeDead. Operand has 74 places, 87 transitions, 181 flow [2024-10-12 00:00:03,065 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 74 places, 86 transitions, 179 flow [2024-10-12 00:00:03,074 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-12 00:00:03,080 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;@5a9c161d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-12 00:00:03,081 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-10-12 00:00:03,085 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-10-12 00:00:03,085 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-10-12 00:00:03,085 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-10-12 00:00:03,085 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:00:03,086 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-12 00:00:03,087 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-12 00:00:03,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:00:03,092 INFO L85 PathProgramCache]: Analyzing trace with hash 18440208, now seen corresponding path program 1 times [2024-10-12 00:00:03,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:00:03,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069926086] [2024-10-12 00:00:03,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:00:03,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:00:03,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-12 00:00:03,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1726754110] [2024-10-12 00:00:03,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:00:03,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:00:03,326 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:00:03,330 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:00:03,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-12 00:00:03,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:00:03,476 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-12 00:00:03,482 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:00:03,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:00:03,523 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 00:00:03,524 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:00:03,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069926086] [2024-10-12 00:00:03,525 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-12 00:00:03,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726754110] [2024-10-12 00:00:03,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726754110] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:00:03,526 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:00:03,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-10-12 00:00:03,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285668853] [2024-10-12 00:00:03,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:00:03,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 00:00:03,562 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:00:03,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:00:03,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 00:00:03,607 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 87 [2024-10-12 00:00:03,610 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 86 transitions, 179 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:03,611 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:00:03,611 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 87 [2024-10-12 00:00:03,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:00:04,002 INFO L124 PetriNetUnfolderBase]: 126/413 cut-off events. [2024-10-12 00:00:04,004 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-10-12 00:00:04,006 INFO L83 FinitePrefix]: Finished finitePrefix Result has 687 conditions, 413 events. 126/413 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1891 event pairs, 105 based on Foata normal form. 37/370 useless extension candidates. Maximal degree in co-relation 620. Up to 264 conditions per place. [2024-10-12 00:00:04,011 INFO L140 encePairwiseOnDemand]: 72/87 looper letters, 42 selfloop transitions, 2 changer transitions 0/81 dead transitions. [2024-10-12 00:00:04,011 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 81 transitions, 257 flow [2024-10-12 00:00:04,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:00:04,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-12 00:00:04,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 168 transitions. [2024-10-12 00:00:04,027 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6436781609195402 [2024-10-12 00:00:04,029 INFO L175 Difference]: Start difference. First operand has 74 places, 86 transitions, 179 flow. Second operand 3 states and 168 transitions. [2024-10-12 00:00:04,030 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 81 transitions, 257 flow [2024-10-12 00:00:04,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 81 transitions, 257 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-10-12 00:00:04,042 INFO L231 Difference]: Finished difference. Result has 77 places, 77 transitions, 175 flow [2024-10-12 00:00:04,044 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=175, PETRI_PLACES=77, PETRI_TRANSITIONS=77} [2024-10-12 00:00:04,050 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 3 predicate places. [2024-10-12 00:00:04,051 INFO L471 AbstractCegarLoop]: Abstraction has has 77 places, 77 transitions, 175 flow [2024-10-12 00:00:04,051 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:04,051 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:00:04,051 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-10-12 00:00:04,072 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-12 00:00:04,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-10-12 00:00:04,253 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-12 00:00:04,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:00:04,254 INFO L85 PathProgramCache]: Analyzing trace with hash 18440200, now seen corresponding path program 1 times [2024-10-12 00:00:04,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:00:04,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1680947679] [2024-10-12 00:00:04,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:00:04,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:00:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:00:04,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:00:04,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:00:04,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1680947679] [2024-10-12 00:00:04,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1680947679] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:00:04,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:00:04,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:00:04,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938955966] [2024-10-12 00:00:04,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:00:04,417 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-12 00:00:04,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:00:04,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-12 00:00:04,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-12 00:00:04,431 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 87 [2024-10-12 00:00:04,432 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 77 transitions, 175 flow. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:04,432 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:00:04,432 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 87 [2024-10-12 00:00:04,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:00:04,732 INFO L124 PetriNetUnfolderBase]: 126/427 cut-off events. [2024-10-12 00:00:04,735 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-10-12 00:00:04,736 INFO L83 FinitePrefix]: Finished finitePrefix Result has 714 conditions, 427 events. 126/427 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1956 event pairs, 105 based on Foata normal form. 4/351 useless extension candidates. Maximal degree in co-relation 677. Up to 269 conditions per place. [2024-10-12 00:00:04,741 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 40 selfloop transitions, 2 changer transitions 0/79 dead transitions. [2024-10-12 00:00:04,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 79 transitions, 263 flow [2024-10-12 00:00:04,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-12 00:00:04,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-10-12 00:00:04,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 155 transitions. [2024-10-12 00:00:04,744 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5938697318007663 [2024-10-12 00:00:04,744 INFO L175 Difference]: Start difference. First operand has 77 places, 77 transitions, 175 flow. Second operand 3 states and 155 transitions. [2024-10-12 00:00:04,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 79 transitions, 263 flow [2024-10-12 00:00:04,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 79 transitions, 261 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-12 00:00:04,750 INFO L231 Difference]: Finished difference. Result has 79 places, 78 transitions, 189 flow [2024-10-12 00:00:04,751 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=173, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=189, PETRI_PLACES=79, PETRI_TRANSITIONS=78} [2024-10-12 00:00:04,751 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 5 predicate places. [2024-10-12 00:00:04,752 INFO L471 AbstractCegarLoop]: Abstraction has has 79 places, 78 transitions, 189 flow [2024-10-12 00:00:04,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:04,752 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:00:04,752 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-10-12 00:00:04,753 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-12 00:00:04,753 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-12 00:00:04,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:00:04,755 INFO L85 PathProgramCache]: Analyzing trace with hash 541190515, now seen corresponding path program 1 times [2024-10-12 00:00:04,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:00:04,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495319399] [2024-10-12 00:00:04,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:00:04,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:00:04,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:00:05,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:00:05,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:00:05,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495319399] [2024-10-12 00:00:05,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495319399] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:00:05,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:00:05,012 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:00:05,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068464926] [2024-10-12 00:00:05,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:00:05,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:00:05,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:00:05,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:00:05,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:00:05,037 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 87 [2024-10-12 00:00:05,037 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 78 transitions, 189 flow. Second operand has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:05,037 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:00:05,038 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 87 [2024-10-12 00:00:05,038 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:00:05,376 INFO L124 PetriNetUnfolderBase]: 126/423 cut-off events. [2024-10-12 00:00:05,376 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-10-12 00:00:05,378 INFO L83 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 423 events. 126/423 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1941 event pairs, 105 based on Foata normal form. 4/351 useless extension candidates. Maximal degree in co-relation 664. Up to 273 conditions per place. [2024-10-12 00:00:05,380 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 41 selfloop transitions, 3 changer transitions 0/79 dead transitions. [2024-10-12 00:00:05,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 82 places, 79 transitions, 279 flow [2024-10-12 00:00:05,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:00:05,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:00:05,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 185 transitions. [2024-10-12 00:00:05,383 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5316091954022989 [2024-10-12 00:00:05,383 INFO L175 Difference]: Start difference. First operand has 79 places, 78 transitions, 189 flow. Second operand 4 states and 185 transitions. [2024-10-12 00:00:05,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 82 places, 79 transitions, 279 flow [2024-10-12 00:00:05,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 79 transitions, 277 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-10-12 00:00:05,386 INFO L231 Difference]: Finished difference. Result has 83 places, 79 transitions, 205 flow [2024-10-12 00:00:05,386 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=78, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=205, PETRI_PLACES=83, PETRI_TRANSITIONS=79} [2024-10-12 00:00:05,387 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 9 predicate places. [2024-10-12 00:00:05,387 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 79 transitions, 205 flow [2024-10-12 00:00:05,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 36.0) internal successors, (144), 4 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:05,388 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:00:05,388 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:00:05,388 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-12 00:00:05,388 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-12 00:00:05,389 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:00:05,389 INFO L85 PathProgramCache]: Analyzing trace with hash -700003350, now seen corresponding path program 1 times [2024-10-12 00:00:05,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:00:05,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237077767] [2024-10-12 00:00:05,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:00:05,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:00:05,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:00:05,534 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:00:05,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:00:05,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237077767] [2024-10-12 00:00:05,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237077767] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:00:05,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185984373] [2024-10-12 00:00:05,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:00:05,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:00:05,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:00:05,538 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:00:05,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-12 00:00:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:00:05,685 INFO L255 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:00:05,686 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:00:05,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:00:05,732 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:00:05,773 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:00:05,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185984373] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:00:05,774 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:00:05,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-12 00:00:05,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583590439] [2024-10-12 00:00:05,775 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:00:05,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-12 00:00:05,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:00:05,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-12 00:00:05,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-10-12 00:00:05,820 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 87 [2024-10-12 00:00:05,821 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 79 transitions, 205 flow. Second operand has 10 states, 10 states have (on average 35.5) internal successors, (355), 10 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:05,821 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:00:05,821 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 87 [2024-10-12 00:00:05,822 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:00:06,419 INFO L124 PetriNetUnfolderBase]: 126/439 cut-off events. [2024-10-12 00:00:06,419 INFO L125 PetriNetUnfolderBase]: For 41/41 co-relation queries the response was YES. [2024-10-12 00:00:06,422 INFO L83 FinitePrefix]: Finished finitePrefix Result has 784 conditions, 439 events. 126/439 cut-off events. For 41/41 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2035 event pairs, 105 based on Foata normal form. 6/369 useless extension candidates. Maximal degree in co-relation 683. Up to 263 conditions per place. [2024-10-12 00:00:06,425 INFO L140 encePairwiseOnDemand]: 80/87 looper letters, 44 selfloop transitions, 9 changer transitions 0/87 dead transitions. [2024-10-12 00:00:06,425 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 87 transitions, 341 flow [2024-10-12 00:00:06,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-12 00:00:06,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-10-12 00:00:06,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 361 transitions. [2024-10-12 00:00:06,427 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4610472541507024 [2024-10-12 00:00:06,428 INFO L175 Difference]: Start difference. First operand has 83 places, 79 transitions, 205 flow. Second operand 9 states and 361 transitions. [2024-10-12 00:00:06,428 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 87 transitions, 341 flow [2024-10-12 00:00:06,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 87 transitions, 337 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-12 00:00:06,434 INFO L231 Difference]: Finished difference. Result has 93 places, 83 transitions, 255 flow [2024-10-12 00:00:06,434 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=255, PETRI_PLACES=93, PETRI_TRANSITIONS=83} [2024-10-12 00:00:06,436 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 19 predicate places. [2024-10-12 00:00:06,436 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 83 transitions, 255 flow [2024-10-12 00:00:06,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 35.5) internal successors, (355), 10 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:06,437 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:00:06,437 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-10-12 00:00:06,460 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-12 00:00:06,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:00:06,639 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-12 00:00:06,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:00:06,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1606673621, now seen corresponding path program 1 times [2024-10-12 00:00:06,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:00:06,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [494266345] [2024-10-12 00:00:06,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:00:06,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:00:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:00:06,884 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:00:06,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:00:06,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [494266345] [2024-10-12 00:00:06,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [494266345] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:00:06,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [574866582] [2024-10-12 00:00:06,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:00:06,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:00:06,886 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:00:06,888 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:00:06,890 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-12 00:00:07,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:00:07,064 INFO L255 TraceCheckSpWp]: Trace formula consists of 261 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:00:07,065 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:00:07,104 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-12 00:00:07,105 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 00:00:07,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [574866582] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:00:07,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 00:00:07,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 8 [2024-10-12 00:00:07,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330408600] [2024-10-12 00:00:07,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:00:07,106 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-12 00:00:07,106 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:00:07,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-12 00:00:07,107 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-10-12 00:00:07,125 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 87 [2024-10-12 00:00:07,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 83 transitions, 255 flow. Second operand has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:07,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:00:07,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 87 [2024-10-12 00:00:07,126 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:00:07,371 INFO L124 PetriNetUnfolderBase]: 126/435 cut-off events. [2024-10-12 00:00:07,371 INFO L125 PetriNetUnfolderBase]: For 65/65 co-relation queries the response was YES. [2024-10-12 00:00:07,373 INFO L83 FinitePrefix]: Finished finitePrefix Result has 803 conditions, 435 events. 126/435 cut-off events. For 65/65 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2008 event pairs, 105 based on Foata normal form. 4/363 useless extension candidates. Maximal degree in co-relation 700. Up to 261 conditions per place. [2024-10-12 00:00:07,375 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 36 selfloop transitions, 8 changer transitions 0/81 dead transitions. [2024-10-12 00:00:07,376 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 81 transitions, 329 flow [2024-10-12 00:00:07,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:00:07,376 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:00:07,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 184 transitions. [2024-10-12 00:00:07,377 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5287356321839081 [2024-10-12 00:00:07,377 INFO L175 Difference]: Start difference. First operand has 93 places, 83 transitions, 255 flow. Second operand 4 states and 184 transitions. [2024-10-12 00:00:07,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 81 transitions, 329 flow [2024-10-12 00:00:07,382 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 81 transitions, 321 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-10-12 00:00:07,385 INFO L231 Difference]: Finished difference. Result has 91 places, 81 transitions, 249 flow [2024-10-12 00:00:07,385 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=249, PETRI_PLACES=91, PETRI_TRANSITIONS=81} [2024-10-12 00:00:07,386 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 17 predicate places. [2024-10-12 00:00:07,386 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 81 transitions, 249 flow [2024-10-12 00:00:07,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.4) internal successors, (187), 5 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:07,386 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:00:07,387 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 1, 1, 1] [2024-10-12 00:00:07,409 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-10-12 00:00:07,588 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:00:07,589 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-12 00:00:07,590 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:00:07,590 INFO L85 PathProgramCache]: Analyzing trace with hash 1874141699, now seen corresponding path program 1 times [2024-10-12 00:00:07,590 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:00:07,590 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003886005] [2024-10-12 00:00:07,590 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:00:07,591 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:00:07,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:00:07,787 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-10-12 00:00:07,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:00:07,788 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003886005] [2024-10-12 00:00:07,788 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003886005] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:00:07,788 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:00:07,788 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:00:07,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060870270] [2024-10-12 00:00:07,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:00:07,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:00:07,789 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:00:07,790 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:00:07,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:00:07,806 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 87 [2024-10-12 00:00:07,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 81 transitions, 249 flow. Second operand has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:07,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:00:07,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 87 [2024-10-12 00:00:07,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:00:08,052 INFO L124 PetriNetUnfolderBase]: 126/433 cut-off events. [2024-10-12 00:00:08,052 INFO L125 PetriNetUnfolderBase]: For 105/105 co-relation queries the response was YES. [2024-10-12 00:00:08,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 433 events. 126/433 cut-off events. For 105/105 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1996 event pairs, 105 based on Foata normal form. 2/359 useless extension candidates. Maximal degree in co-relation 706. Up to 267 conditions per place. [2024-10-12 00:00:08,056 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 36 selfloop transitions, 9 changer transitions 0/81 dead transitions. [2024-10-12 00:00:08,056 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 81 transitions, 337 flow [2024-10-12 00:00:08,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:00:08,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:00:08,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 184 transitions. [2024-10-12 00:00:08,058 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5287356321839081 [2024-10-12 00:00:08,058 INFO L175 Difference]: Start difference. First operand has 91 places, 81 transitions, 249 flow. Second operand 4 states and 184 transitions. [2024-10-12 00:00:08,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 81 transitions, 337 flow [2024-10-12 00:00:08,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 81 transitions, 317 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-10-12 00:00:08,061 INFO L231 Difference]: Finished difference. Result has 89 places, 81 transitions, 253 flow [2024-10-12 00:00:08,062 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=223, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=253, PETRI_PLACES=89, PETRI_TRANSITIONS=81} [2024-10-12 00:00:08,062 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 15 predicate places. [2024-10-12 00:00:08,063 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 81 transitions, 253 flow [2024-10-12 00:00:08,063 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.0) internal successors, (152), 4 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:08,063 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:00:08,063 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1] [2024-10-12 00:00:08,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-12 00:00:08,064 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-12 00:00:08,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:00:08,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1458894506, now seen corresponding path program 2 times [2024-10-12 00:00:08,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:00:08,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590501248] [2024-10-12 00:00:08,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:00:08,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:00:08,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:00:08,284 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-12 00:00:08,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:00:08,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590501248] [2024-10-12 00:00:08,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590501248] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:00:08,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:00:08,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:00:08,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633768716] [2024-10-12 00:00:08,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:00:08,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:00:08,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:00:08,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:00:08,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:00:08,340 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 87 [2024-10-12 00:00:08,341 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 81 transitions, 253 flow. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:08,341 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:00:08,341 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 87 [2024-10-12 00:00:08,341 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:00:08,721 INFO L124 PetriNetUnfolderBase]: 126/431 cut-off events. [2024-10-12 00:00:08,721 INFO L125 PetriNetUnfolderBase]: For 113/113 co-relation queries the response was YES. [2024-10-12 00:00:08,722 INFO L83 FinitePrefix]: Finished finitePrefix Result has 806 conditions, 431 events. 126/431 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1989 event pairs, 105 based on Foata normal form. 2/359 useless extension candidates. Maximal degree in co-relation 687. Up to 256 conditions per place. [2024-10-12 00:00:08,724 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 38 selfloop transitions, 5 changer transitions 0/80 dead transitions. [2024-10-12 00:00:08,724 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 80 transitions, 337 flow [2024-10-12 00:00:08,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:00:08,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:00:08,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 187 transitions. [2024-10-12 00:00:08,725 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5373563218390804 [2024-10-12 00:00:08,726 INFO L175 Difference]: Start difference. First operand has 89 places, 81 transitions, 253 flow. Second operand 4 states and 187 transitions. [2024-10-12 00:00:08,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 80 transitions, 337 flow [2024-10-12 00:00:08,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 80 transitions, 323 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-10-12 00:00:08,728 INFO L231 Difference]: Finished difference. Result has 89 places, 80 transitions, 247 flow [2024-10-12 00:00:08,729 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=247, PETRI_PLACES=89, PETRI_TRANSITIONS=80} [2024-10-12 00:00:08,733 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 15 predicate places. [2024-10-12 00:00:08,733 INFO L471 AbstractCegarLoop]: Abstraction has has 89 places, 80 transitions, 247 flow [2024-10-12 00:00:08,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:08,733 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:00:08,734 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1] [2024-10-12 00:00:08,734 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-12 00:00:08,734 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-12 00:00:08,734 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:00:08,734 INFO L85 PathProgramCache]: Analyzing trace with hash -2018909962, now seen corresponding path program 1 times [2024-10-12 00:00:08,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:00:08,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459950597] [2024-10-12 00:00:08,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:00:08,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:00:08,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:00:08,898 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-12 00:00:08,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:00:08,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459950597] [2024-10-12 00:00:08,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1459950597] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:00:08,899 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:00:08,899 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-12 00:00:08,899 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834812728] [2024-10-12 00:00:08,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:00:08,900 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:00:08,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:00:08,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:00:08,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:00:08,918 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 87 [2024-10-12 00:00:08,918 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 89 places, 80 transitions, 247 flow. Second operand has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:08,918 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:00:08,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 87 [2024-10-12 00:00:08,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:00:09,247 INFO L124 PetriNetUnfolderBase]: 126/430 cut-off events. [2024-10-12 00:00:09,248 INFO L125 PetriNetUnfolderBase]: For 79/79 co-relation queries the response was YES. [2024-10-12 00:00:09,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 795 conditions, 430 events. 126/430 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1980 event pairs, 105 based on Foata normal form. 1/357 useless extension candidates. Maximal degree in co-relation 682. Up to 267 conditions per place. [2024-10-12 00:00:09,251 INFO L140 encePairwiseOnDemand]: 83/87 looper letters, 48 selfloop transitions, 3 changer transitions 0/88 dead transitions. [2024-10-12 00:00:09,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 88 transitions, 409 flow [2024-10-12 00:00:09,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:00:09,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:00:09,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 192 transitions. [2024-10-12 00:00:09,253 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5517241379310345 [2024-10-12 00:00:09,253 INFO L175 Difference]: Start difference. First operand has 89 places, 80 transitions, 247 flow. Second operand 4 states and 192 transitions. [2024-10-12 00:00:09,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 88 transitions, 409 flow [2024-10-12 00:00:09,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 88 transitions, 397 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-12 00:00:09,257 INFO L231 Difference]: Finished difference. Result has 91 places, 81 transitions, 259 flow [2024-10-12 00:00:09,257 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=259, PETRI_PLACES=91, PETRI_TRANSITIONS=81} [2024-10-12 00:00:09,259 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 17 predicate places. [2024-10-12 00:00:09,260 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 81 transitions, 259 flow [2024-10-12 00:00:09,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.5) internal successors, (154), 4 states have internal predecessors, (154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:09,260 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:00:09,260 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:00:09,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-12 00:00:09,261 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-12 00:00:09,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:00:09,263 INFO L85 PathProgramCache]: Analyzing trace with hash -580145144, now seen corresponding path program 1 times [2024-10-12 00:00:09,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:00:09,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177444691] [2024-10-12 00:00:09,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:00:09,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:00:09,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:00:09,480 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-10-12 00:00:09,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:00:09,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177444691] [2024-10-12 00:00:09,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177444691] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:00:09,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-12 00:00:09,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-12 00:00:09,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650758615] [2024-10-12 00:00:09,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:00:09,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-12 00:00:09,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:00:09,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-12 00:00:09,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-12 00:00:09,498 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 87 [2024-10-12 00:00:09,499 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 81 transitions, 259 flow. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:09,499 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:00:09,499 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 87 [2024-10-12 00:00:09,500 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:00:09,898 INFO L124 PetriNetUnfolderBase]: 150/448 cut-off events. [2024-10-12 00:00:09,898 INFO L125 PetriNetUnfolderBase]: For 79/79 co-relation queries the response was YES. [2024-10-12 00:00:09,900 INFO L83 FinitePrefix]: Finished finitePrefix Result has 862 conditions, 448 events. 150/448 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 2072 event pairs, 16 based on Foata normal form. 22/405 useless extension candidates. Maximal degree in co-relation 782. Up to 251 conditions per place. [2024-10-12 00:00:09,902 INFO L140 encePairwiseOnDemand]: 81/87 looper letters, 88 selfloop transitions, 3 changer transitions 0/126 dead transitions. [2024-10-12 00:00:09,902 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 126 transitions, 531 flow [2024-10-12 00:00:09,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-12 00:00:09,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-10-12 00:00:09,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 232 transitions. [2024-10-12 00:00:09,904 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6666666666666666 [2024-10-12 00:00:09,904 INFO L175 Difference]: Start difference. First operand has 91 places, 81 transitions, 259 flow. Second operand 4 states and 232 transitions. [2024-10-12 00:00:09,904 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 126 transitions, 531 flow [2024-10-12 00:00:09,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 126 transitions, 527 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-10-12 00:00:09,909 INFO L231 Difference]: Finished difference. Result has 91 places, 79 transitions, 261 flow [2024-10-12 00:00:09,913 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=251, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=261, PETRI_PLACES=91, PETRI_TRANSITIONS=79} [2024-10-12 00:00:09,914 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 17 predicate places. [2024-10-12 00:00:09,914 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 79 transitions, 261 flow [2024-10-12 00:00:09,915 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:09,915 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:00:09,915 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 4, 4, 4, 4, 2, 1, 1, 1, 1, 1] [2024-10-12 00:00:09,915 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-12 00:00:09,915 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-12 00:00:09,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:00:09,916 INFO L85 PathProgramCache]: Analyzing trace with hash 330537873, now seen corresponding path program 1 times [2024-10-12 00:00:09,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:00:09,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207380186] [2024-10-12 00:00:09,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:00:09,917 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:00:10,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:00:10,291 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 00:00:10,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:00:10,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [207380186] [2024-10-12 00:00:10,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [207380186] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:00:10,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [246433734] [2024-10-12 00:00:10,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:00:10,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:00:10,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:00:10,295 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:00:10,297 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-12 00:00:10,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:00:10,589 INFO L255 TraceCheckSpWp]: Trace formula consists of 486 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-12 00:00:10,591 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:00:10,642 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 00:00:10,642 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:00:10,767 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 00:00:10,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [246433734] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:00:10,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:00:10,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2024-10-12 00:00:10,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007325821] [2024-10-12 00:00:10,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:00:10,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-12 00:00:10,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:00:10,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-12 00:00:10,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-12 00:00:10,879 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 87 [2024-10-12 00:00:10,881 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 79 transitions, 261 flow. Second operand has 18 states, 18 states have (on average 35.833333333333336) internal successors, (645), 18 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:10,881 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:00:10,881 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 87 [2024-10-12 00:00:10,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:00:12,093 INFO L124 PetriNetUnfolderBase]: 126/467 cut-off events. [2024-10-12 00:00:12,094 INFO L125 PetriNetUnfolderBase]: For 261/261 co-relation queries the response was YES. [2024-10-12 00:00:12,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1009 conditions, 467 events. 126/467 cut-off events. For 261/261 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2074 event pairs, 105 based on Foata normal form. 8/425 useless extension candidates. Maximal degree in co-relation 856. Up to 260 conditions per place. [2024-10-12 00:00:12,097 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 56 selfloop transitions, 15 changer transitions 0/102 dead transitions. [2024-10-12 00:00:12,097 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 102 transitions, 565 flow [2024-10-12 00:00:12,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-12 00:00:12,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-10-12 00:00:12,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 583 transitions. [2024-10-12 00:00:12,100 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4467432950191571 [2024-10-12 00:00:12,100 INFO L175 Difference]: Start difference. First operand has 91 places, 79 transitions, 261 flow. Second operand 15 states and 583 transitions. [2024-10-12 00:00:12,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 102 transitions, 565 flow [2024-10-12 00:00:12,103 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 102 transitions, 559 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-10-12 00:00:12,104 INFO L231 Difference]: Finished difference. Result has 107 places, 88 transitions, 389 flow [2024-10-12 00:00:12,105 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=389, PETRI_PLACES=107, PETRI_TRANSITIONS=88} [2024-10-12 00:00:12,106 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 33 predicate places. [2024-10-12 00:00:12,106 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 88 transitions, 389 flow [2024-10-12 00:00:12,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 35.833333333333336) internal successors, (645), 18 states have internal predecessors, (645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:12,107 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:00:12,107 INFO L204 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1] [2024-10-12 00:00:12,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-10-12 00:00:12,307 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-10-12 00:00:12,308 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-12 00:00:12,308 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:00:12,308 INFO L85 PathProgramCache]: Analyzing trace with hash -1970485743, now seen corresponding path program 2 times [2024-10-12 00:00:12,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:00:12,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002137688] [2024-10-12 00:00:12,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:00:12,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:00:12,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:00:13,187 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 00:00:13,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:00:13,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002137688] [2024-10-12 00:00:13,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002137688] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:00:13,188 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1845469914] [2024-10-12 00:00:13,188 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-12 00:00:13,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:00:13,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:00:13,190 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:00:13,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-12 00:00:13,666 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-12 00:00:13,667 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 00:00:13,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 858 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-12 00:00:13,676 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:00:13,766 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 00:00:13,766 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:00:14,112 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 00:00:14,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1845469914] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:00:14,113 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:00:14,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-10-12 00:00:14,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1361115373] [2024-10-12 00:00:14,113 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:00:14,114 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-10-12 00:00:14,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:00:14,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-10-12 00:00:14,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-10-12 00:00:14,304 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 87 [2024-10-12 00:00:14,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 88 transitions, 389 flow. Second operand has 34 states, 34 states have (on average 35.6764705882353) internal successors, (1213), 34 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:14,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:00:14,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 87 [2024-10-12 00:00:14,306 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:00:17,215 INFO L124 PetriNetUnfolderBase]: 126/563 cut-off events. [2024-10-12 00:00:17,215 INFO L125 PetriNetUnfolderBase]: For 1079/1079 co-relation queries the response was YES. [2024-10-12 00:00:17,218 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1465 conditions, 563 events. 126/563 cut-off events. For 1079/1079 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2123 event pairs, 105 based on Foata normal form. 16/529 useless extension candidates. Maximal degree in co-relation 1102. Up to 260 conditions per place. [2024-10-12 00:00:17,221 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 80 selfloop transitions, 31 changer transitions 0/142 dead transitions. [2024-10-12 00:00:17,222 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 137 places, 142 transitions, 1075 flow [2024-10-12 00:00:17,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-10-12 00:00:17,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-10-12 00:00:17,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1171 transitions. [2024-10-12 00:00:17,227 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43418613274008155 [2024-10-12 00:00:17,227 INFO L175 Difference]: Start difference. First operand has 107 places, 88 transitions, 389 flow. Second operand 31 states and 1171 transitions. [2024-10-12 00:00:17,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 137 places, 142 transitions, 1075 flow [2024-10-12 00:00:17,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 142 transitions, 1005 flow, removed 30 selfloop flow, removed 5 redundant places. [2024-10-12 00:00:17,235 INFO L231 Difference]: Finished difference. Result has 141 places, 105 transitions, 625 flow [2024-10-12 00:00:17,236 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=351, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=625, PETRI_PLACES=141, PETRI_TRANSITIONS=105} [2024-10-12 00:00:17,236 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 67 predicate places. [2024-10-12 00:00:17,237 INFO L471 AbstractCegarLoop]: Abstraction has has 141 places, 105 transitions, 625 flow [2024-10-12 00:00:17,238 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 35.6764705882353) internal successors, (1213), 34 states have internal predecessors, (1213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:17,238 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:00:17,238 INFO L204 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1] [2024-10-12 00:00:17,265 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-12 00:00:17,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-10-12 00:00:17,439 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-12 00:00:17,440 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:00:17,440 INFO L85 PathProgramCache]: Analyzing trace with hash 10771217, now seen corresponding path program 3 times [2024-10-12 00:00:17,440 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:00:17,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1684519493] [2024-10-12 00:00:17,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:00:17,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:00:17,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:00:20,106 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 00:00:20,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:00:20,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1684519493] [2024-10-12 00:00:20,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1684519493] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:00:20,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [925613310] [2024-10-12 00:00:20,108 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-12 00:00:20,108 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:00:20,108 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:00:20,110 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:00:20,114 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-12 00:00:20,566 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-12 00:00:20,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 00:00:20,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-12 00:00:20,573 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:00:20,866 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 110 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-10-12 00:00:20,867 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-12 00:00:20,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [925613310] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-12 00:00:20,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-12 00:00:20,867 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [33] total 39 [2024-10-12 00:00:20,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240842882] [2024-10-12 00:00:20,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-12 00:00:20,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 00:00:20,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:00:20,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 00:00:20,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=308, Invalid=1174, Unknown=0, NotChecked=0, Total=1482 [2024-10-12 00:00:20,934 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 87 [2024-10-12 00:00:20,935 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 105 transitions, 625 flow. Second operand has 8 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:20,935 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:00:20,935 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 87 [2024-10-12 00:00:20,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:00:21,658 INFO L124 PetriNetUnfolderBase]: 126/549 cut-off events. [2024-10-12 00:00:21,658 INFO L125 PetriNetUnfolderBase]: For 1219/1219 co-relation queries the response was YES. [2024-10-12 00:00:21,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1432 conditions, 549 events. 126/549 cut-off events. For 1219/1219 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2034 event pairs, 105 based on Foata normal form. 14/513 useless extension candidates. Maximal degree in co-relation 1053. Up to 253 conditions per place. [2024-10-12 00:00:21,663 INFO L140 encePairwiseOnDemand]: 79/87 looper letters, 63 selfloop transitions, 37 changer transitions 0/135 dead transitions. [2024-10-12 00:00:21,663 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 149 places, 135 transitions, 1159 flow [2024-10-12 00:00:21,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-12 00:00:21,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-10-12 00:00:21,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 377 transitions. [2024-10-12 00:00:21,665 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43333333333333335 [2024-10-12 00:00:21,665 INFO L175 Difference]: Start difference. First operand has 141 places, 105 transitions, 625 flow. Second operand 10 states and 377 transitions. [2024-10-12 00:00:21,665 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 149 places, 135 transitions, 1159 flow [2024-10-12 00:00:21,672 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 135 transitions, 1075 flow, removed 18 selfloop flow, removed 12 redundant places. [2024-10-12 00:00:21,674 INFO L231 Difference]: Finished difference. Result has 142 places, 135 transitions, 1077 flow [2024-10-12 00:00:21,674 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=577, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1077, PETRI_PLACES=142, PETRI_TRANSITIONS=135} [2024-10-12 00:00:21,677 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 68 predicate places. [2024-10-12 00:00:21,677 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 135 transitions, 1077 flow [2024-10-12 00:00:21,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 34.25) internal successors, (274), 8 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:21,678 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:00:21,678 INFO L204 CegarLoopForPetriNet]: trace histogram [15, 15, 15, 15, 15, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:00:21,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-12 00:00:21,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-10-12 00:00:21,879 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-12 00:00:21,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:00:21,880 INFO L85 PathProgramCache]: Analyzing trace with hash -474727792, now seen corresponding path program 1 times [2024-10-12 00:00:21,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:00:21,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1368797839] [2024-10-12 00:00:21,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:00:21,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:00:22,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:00:23,955 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 1 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 00:00:23,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:00:23,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1368797839] [2024-10-12 00:00:23,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1368797839] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:00:23,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [209826019] [2024-10-12 00:00:23,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:00:23,956 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:00:23,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:00:23,958 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:00:23,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-12 00:00:24,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:00:24,715 INFO L255 TraceCheckSpWp]: Trace formula consists of 1542 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-10-12 00:00:24,724 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:00:24,886 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 1 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 00:00:24,886 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:00:25,744 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 1 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-10-12 00:00:25,745 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [209826019] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:00:25,745 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:00:25,745 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-10-12 00:00:25,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534917898] [2024-10-12 00:00:25,745 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:00:25,746 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-10-12 00:00:25,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:00:25,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-10-12 00:00:25,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-10-12 00:00:25,941 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 87 [2024-10-12 00:00:25,944 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 135 transitions, 1077 flow. Second operand has 63 states, 63 states have (on average 35.6031746031746) internal successors, (2243), 63 states have internal predecessors, (2243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:25,944 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:00:25,944 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 87 [2024-10-12 00:00:25,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:00:30,657 INFO L124 PetriNetUnfolderBase]: 126/714 cut-off events. [2024-10-12 00:00:30,658 INFO L125 PetriNetUnfolderBase]: For 5588/5588 co-relation queries the response was YES. [2024-10-12 00:00:30,660 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2428 conditions, 714 events. 126/714 cut-off events. For 5588/5588 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 2049 event pairs, 105 based on Foata normal form. 30/694 useless extension candidates. Maximal degree in co-relation 1749. Up to 260 conditions per place. [2024-10-12 00:00:30,665 INFO L140 encePairwiseOnDemand]: 82/87 looper letters, 97 selfloop transitions, 121 changer transitions 0/249 dead transitions. [2024-10-12 00:00:30,666 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 249 transitions, 2955 flow [2024-10-12 00:00:30,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-10-12 00:00:30,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2024-10-12 00:00:30,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 2244 transitions. [2024-10-12 00:00:30,681 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4228377614471453 [2024-10-12 00:00:30,681 INFO L175 Difference]: Start difference. First operand has 142 places, 135 transitions, 1077 flow. Second operand 61 states and 2244 transitions. [2024-10-12 00:00:30,682 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 249 transitions, 2955 flow [2024-10-12 00:00:30,698 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 249 transitions, 2909 flow, removed 19 selfloop flow, removed 4 redundant places. [2024-10-12 00:00:30,704 INFO L231 Difference]: Finished difference. Result has 214 places, 196 transitions, 2321 flow [2024-10-12 00:00:30,705 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=1061, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=2321, PETRI_PLACES=214, PETRI_TRANSITIONS=196} [2024-10-12 00:00:30,706 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 140 predicate places. [2024-10-12 00:00:30,706 INFO L471 AbstractCegarLoop]: Abstraction has has 214 places, 196 transitions, 2321 flow [2024-10-12 00:00:30,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 35.6031746031746) internal successors, (2243), 63 states have internal predecessors, (2243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:30,708 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:00:30,708 INFO L204 CegarLoopForPetriNet]: trace histogram [30, 30, 30, 30, 30, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-12 00:00:30,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-12 00:00:30,912 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:00:30,912 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-12 00:00:30,913 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:00:30,913 INFO L85 PathProgramCache]: Analyzing trace with hash -984175438, now seen corresponding path program 2 times [2024-10-12 00:00:30,913 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:00:30,913 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1336754020] [2024-10-12 00:00:30,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:00:30,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-12 00:00:31,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-12 00:00:32,111 INFO L134 CoverageAnalysis]: Checked inductivity of 2208 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2207 trivial. 0 not checked. [2024-10-12 00:00:32,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-12 00:00:32,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1336754020] [2024-10-12 00:00:32,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1336754020] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-12 00:00:32,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [166599127] [2024-10-12 00:00:32,112 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-12 00:00:32,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-12 00:00:32,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-12 00:00:32,114 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-12 00:00:32,116 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-12 00:00:33,176 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-12 00:00:33,177 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-12 00:00:33,194 INFO L255 TraceCheckSpWp]: Trace formula consists of 2937 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-12 00:00:33,200 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-12 00:00:33,408 INFO L134 CoverageAnalysis]: Checked inductivity of 2208 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2207 trivial. 0 not checked. [2024-10-12 00:00:33,408 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-12 00:00:33,573 INFO L134 CoverageAnalysis]: Checked inductivity of 2208 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2207 trivial. 0 not checked. [2024-10-12 00:00:33,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [166599127] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-12 00:00:33,573 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-12 00:00:33,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-10-12 00:00:33,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642525173] [2024-10-12 00:00:33,574 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-12 00:00:33,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-12 00:00:33,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-12 00:00:33,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-12 00:00:33,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-10-12 00:00:33,598 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 87 [2024-10-12 00:00:33,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 196 transitions, 2321 flow. Second operand has 8 states, 8 states have (on average 39.125) internal successors, (313), 8 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:33,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-10-12 00:00:33,599 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 87 [2024-10-12 00:00:33,599 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-10-12 00:00:34,383 INFO L124 PetriNetUnfolderBase]: 127/899 cut-off events. [2024-10-12 00:00:34,384 INFO L125 PetriNetUnfolderBase]: For 7200/7200 co-relation queries the response was YES. [2024-10-12 00:00:34,387 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3545 conditions, 899 events. 127/899 cut-off events. For 7200/7200 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 1822 event pairs, 105 based on Foata normal form. 3/852 useless extension candidates. Maximal degree in co-relation 2852. Up to 254 conditions per place. [2024-10-12 00:00:34,392 INFO L140 encePairwiseOnDemand]: 81/87 looper letters, 216 selfloop transitions, 7 changer transitions 0/260 dead transitions. [2024-10-12 00:00:34,393 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 220 places, 260 transitions, 3880 flow [2024-10-12 00:00:34,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-12 00:00:34,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-10-12 00:00:34,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 311 transitions. [2024-10-12 00:00:34,394 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5106732348111659 [2024-10-12 00:00:34,394 INFO L175 Difference]: Start difference. First operand has 214 places, 196 transitions, 2321 flow. Second operand 7 states and 311 transitions. [2024-10-12 00:00:34,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 220 places, 260 transitions, 3880 flow [2024-10-12 00:00:34,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 192 places, 260 transitions, 3675 flow, removed 18 selfloop flow, removed 28 redundant places. [2024-10-12 00:00:34,445 INFO L231 Difference]: Finished difference. Result has 196 places, 199 transitions, 2297 flow [2024-10-12 00:00:34,446 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=87, PETRI_DIFFERENCE_MINUEND_FLOW=2175, PETRI_DIFFERENCE_MINUEND_PLACES=186, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=2297, PETRI_PLACES=196, PETRI_TRANSITIONS=199} [2024-10-12 00:00:34,447 INFO L277 CegarLoopForPetriNet]: 74 programPoint places, 122 predicate places. [2024-10-12 00:00:34,447 INFO L471 AbstractCegarLoop]: Abstraction has has 196 places, 199 transitions, 2297 flow [2024-10-12 00:00:34,447 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 39.125) internal successors, (313), 8 states have internal predecessors, (313), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-12 00:00:34,447 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-10-12 00:00:34,447 INFO L204 CegarLoopForPetriNet]: trace histogram [32, 32, 31, 31, 31, 2, 1, 1, 1, 1, 1] [2024-10-12 00:00:34,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-10-12 00:00:34,647 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-10-12 00:00:34,648 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-10-12 00:00:34,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-12 00:00:34,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1720900505, now seen corresponding path program 1 times [2024-10-12 00:00:34,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-12 00:00:34,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1286977002] [2024-10-12 00:00:34,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-12 00:00:34,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms