./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 15:06:55,030 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 15:06:55,073 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-09 15:06:55,078 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 15:06:55,078 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 15:06:55,103 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 15:06:55,103 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 15:06:55,103 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 15:06:55,104 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 15:06:55,104 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 15:06:55,104 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 15:06:55,105 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 15:06:55,105 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 15:06:55,105 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 15:06:55,105 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 15:06:55,106 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 15:06:55,106 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 15:06:55,106 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 15:06:55,107 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 15:06:55,107 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 15:06:55,107 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 15:06:55,107 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 15:06:55,111 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 15:06:55,111 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 15:06:55,111 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 15:06:55,111 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-09 15:06:55,111 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 15:06:55,112 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 15:06:55,112 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 15:06:55,112 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 15:06:55,112 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 15:06:55,112 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 15:06:55,113 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 15:06:55,113 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 15:06:55,113 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:06:55,113 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 15:06:55,113 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 15:06:55,113 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 15:06:55,114 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 15:06:55,114 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 15:06:55,114 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 15:06:55,114 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 15:06:55,114 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 15:06:55,114 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 15:06:55,114 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f41f3c018db74ffccd5759d166eb9816a1bf73b1747e3e539ecb5bf51feb56af [2024-11-09 15:06:55,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 15:06:55,308 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 15:06:55,310 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 15:06:55,311 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 15:06:55,312 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 15:06:55,313 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-11-09 15:06:56,480 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 15:06:56,746 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 15:06:56,747 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_90-arrayloop2_racing.i [2024-11-09 15:06:56,772 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e0c40cee/d401453eaab5478489159a75ae02156b/FLAG29821f785 [2024-11-09 15:06:57,085 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8e0c40cee/d401453eaab5478489159a75ae02156b [2024-11-09 15:06:57,087 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 15:06:57,088 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 15:06:57,089 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 15:06:57,089 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 15:06:57,096 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 15:06:57,097 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:06:57" (1/1) ... [2024-11-09 15:06:57,097 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d18f0a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:06:57, skipping insertion in model container [2024-11-09 15:06:57,097 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 03:06:57" (1/1) ... [2024-11-09 15:06:57,139 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 15:06:57,450 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-09 15:06:57,450 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-09 15:06:57,451 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-09 15:06:57,452 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-09 15:06:57,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:06:57,502 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 15:06:57,538 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-09 15:06:57,538 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-09 15:06:57,539 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-09 15:06:57,539 WARN L1674 CHandler]: Possible shadowing of function new [2024-11-09 15:06:57,550 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 15:06:57,604 INFO L204 MainTranslator]: Completed translation [2024-11-09 15:06:57,605 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:06:57 WrapperNode [2024-11-09 15:06:57,605 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 15:06:57,605 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 15:06:57,606 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 15:06:57,606 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 15:06:57,611 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:06:57" (1/1) ... [2024-11-09 15:06:57,633 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:06:57" (1/1) ... [2024-11-09 15:06:57,669 INFO L138 Inliner]: procedures = 280, calls = 143, calls flagged for inlining = 11, calls inlined = 12, statements flattened = 428 [2024-11-09 15:06:57,670 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 15:06:57,670 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 15:06:57,670 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 15:06:57,671 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 15:06:57,679 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:06:57" (1/1) ... [2024-11-09 15:06:57,679 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:06:57" (1/1) ... [2024-11-09 15:06:57,689 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:06:57" (1/1) ... [2024-11-09 15:06:57,721 INFO L175 MemorySlicer]: Split 105 memory accesses to 5 slices as follows [2, 2, 5, 94, 2]. 90 percent of accesses are in the largest equivalence class. The 77 initializations are split as follows [2, 0, 5, 70, 0]. The 15 writes are split as follows [0, 1, 0, 13, 1]. [2024-11-09 15:06:57,721 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:06:57" (1/1) ... [2024-11-09 15:06:57,721 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:06:57" (1/1) ... [2024-11-09 15:06:57,734 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:06:57" (1/1) ... [2024-11-09 15:06:57,738 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:06:57" (1/1) ... [2024-11-09 15:06:57,742 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:06:57" (1/1) ... [2024-11-09 15:06:57,747 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:06:57" (1/1) ... [2024-11-09 15:06:57,754 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 15:06:57,755 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 15:06:57,755 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 15:06:57,755 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 15:06:57,756 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:06:57" (1/1) ... [2024-11-09 15:06:57,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 15:06:57,769 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:06:57,780 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 15:06:57,782 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 15:06:57,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 15:06:57,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-09 15:06:57,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-09 15:06:57,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-09 15:06:57,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-09 15:06:57,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-09 15:06:57,815 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2024-11-09 15:06:57,815 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2024-11-09 15:06:57,816 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 15:06:57,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-09 15:06:57,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-09 15:06:57,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-09 15:06:57,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-09 15:06:57,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-09 15:06:57,816 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-09 15:06:57,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 15:06:57,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 15:06:57,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 15:06:57,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-09 15:06:57,817 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-09 15:06:57,818 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-11-09 15:06:57,818 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-11-09 15:06:57,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 15:06:57,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 15:06:57,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 15:06:57,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-09 15:06:57,818 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-09 15:06:57,819 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-09 15:06:57,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-09 15:06:57,819 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 15:06:57,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-09 15:06:57,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-09 15:06:57,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-09 15:06:57,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-09 15:06:57,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-09 15:06:57,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 15:06:57,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 15:06:57,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 15:06:57,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-09 15:06:57,819 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-09 15:06:57,819 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 15:06:57,819 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 15:06:57,821 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 15:06:57,957 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 15:06:57,959 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 15:06:58,393 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 15:06:58,393 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 15:06:58,887 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 15:06:58,887 INFO L316 CfgBuilder]: Removed 30 assume(true) statements. [2024-11-09 15:06:58,887 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:06:58 BoogieIcfgContainer [2024-11-09 15:06:58,888 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 15:06:58,889 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 15:06:58,889 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 15:06:58,894 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 15:06:58,894 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 03:06:57" (1/3) ... [2024-11-09 15:06:58,895 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64fb183a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:06:58, skipping insertion in model container [2024-11-09 15:06:58,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 03:06:57" (2/3) ... [2024-11-09 15:06:58,895 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64fb183a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 03:06:58, skipping insertion in model container [2024-11-09 15:06:58,895 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 03:06:58" (3/3) ... [2024-11-09 15:06:58,896 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_90-arrayloop2_racing.i [2024-11-09 15:06:58,911 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 15:06:58,911 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 30 error locations. [2024-11-09 15:06:58,911 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 15:06:58,989 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-09 15:06:59,026 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 167 transitions, 354 flow [2024-11-09 15:06:59,095 INFO L124 PetriNetUnfolderBase]: 49/279 cut-off events. [2024-11-09 15:06:59,095 INFO L125 PetriNetUnfolderBase]: For 8/8 co-relation queries the response was YES. [2024-11-09 15:06:59,101 INFO L83 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 279 events. 49/279 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 1382 event pairs, 0 based on Foata normal form. 0/174 useless extension candidates. Maximal degree in co-relation 156. Up to 8 conditions per place. [2024-11-09 15:06:59,101 INFO L82 GeneralOperation]: Start removeDead. Operand has 140 places, 167 transitions, 354 flow [2024-11-09 15:06:59,107 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 167 transitions, 354 flow [2024-11-09 15:06:59,115 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 15:06:59,122 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;@1c526039, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 15:06:59,123 INFO L334 AbstractCegarLoop]: Starting to check reachability of 48 error locations. [2024-11-09 15:06:59,127 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 15:06:59,127 INFO L124 PetriNetUnfolderBase]: 0/7 cut-off events. [2024-11-09 15:06:59,127 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 15:06:59,128 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:06:59,128 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-09 15:06:59,129 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-09 15:06:59,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:06:59,133 INFO L85 PathProgramCache]: Analyzing trace with hash 32909723, now seen corresponding path program 1 times [2024-11-09 15:06:59,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:06:59,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832810694] [2024-11-09 15:06:59,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:06:59,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:06:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-09 15:06:59,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [136881300] [2024-11-09 15:06:59,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:06:59,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:06:59,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:06:59,289 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:06:59,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 15:06:59,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:06:59,421 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 15:06:59,425 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:06:59,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:06:59,453 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:06:59,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:06:59,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832810694] [2024-11-09 15:06:59,453 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-09 15:06:59,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136881300] [2024-11-09 15:06:59,456 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136881300] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:06:59,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:06:59,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 15:06:59,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138950064] [2024-11-09 15:06:59,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:06:59,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:06:59,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:06:59,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:06:59,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:06:59,501 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 167 [2024-11-09 15:06:59,504 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 167 transitions, 354 flow. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:06:59,504 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:06:59,504 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 167 [2024-11-09 15:06:59,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:07:01,162 INFO L124 PetriNetUnfolderBase]: 8567/18653 cut-off events. [2024-11-09 15:07:01,162 INFO L125 PetriNetUnfolderBase]: For 265/265 co-relation queries the response was YES. [2024-11-09 15:07:01,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31504 conditions, 18653 events. 8567/18653 cut-off events. For 265/265 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170129 event pairs, 7350 based on Foata normal form. 2268/17596 useless extension candidates. Maximal degree in co-relation 30100. Up to 12703 conditions per place. [2024-11-09 15:07:01,264 INFO L140 encePairwiseOnDemand]: 142/167 looper letters, 76 selfloop transitions, 2 changer transitions 0/152 dead transitions. [2024-11-09 15:07:01,264 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 142 places, 152 transitions, 480 flow [2024-11-09 15:07:01,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:07:01,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:07:01,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 323 transitions. [2024-11-09 15:07:01,279 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6447105788423154 [2024-11-09 15:07:01,280 INFO L175 Difference]: Start difference. First operand has 140 places, 167 transitions, 354 flow. Second operand 3 states and 323 transitions. [2024-11-09 15:07:01,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 142 places, 152 transitions, 480 flow [2024-11-09 15:07:01,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 152 transitions, 480 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 15:07:01,289 INFO L231 Difference]: Finished difference. Result has 143 places, 148 transitions, 330 flow [2024-11-09 15:07:01,290 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=314, PETRI_DIFFERENCE_MINUEND_PLACES=140, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=330, PETRI_PLACES=143, PETRI_TRANSITIONS=148} [2024-11-09 15:07:01,294 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 3 predicate places. [2024-11-09 15:07:01,294 INFO L471 AbstractCegarLoop]: Abstraction has has 143 places, 148 transitions, 330 flow [2024-11-09 15:07:01,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:07:01,294 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:07:01,295 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-09 15:07:01,309 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 15:07:01,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-09 15:07:01,499 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-09 15:07:01,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:07:01,500 INFO L85 PathProgramCache]: Analyzing trace with hash 32909771, now seen corresponding path program 1 times [2024-11-09 15:07:01,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:07:01,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [709140996] [2024-11-09 15:07:01,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:01,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:07:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:01,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:07:01,665 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:07:01,665 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [709140996] [2024-11-09 15:07:01,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [709140996] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:07:01,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:07:01,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:07:01,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129149311] [2024-11-09 15:07:01,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:07:01,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 15:07:01,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:07:01,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 15:07:01,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 15:07:01,678 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 167 [2024-11-09 15:07:01,679 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 143 places, 148 transitions, 330 flow. Second operand has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:07:01,680 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:07:01,680 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 167 [2024-11-09 15:07:01,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:07:03,127 INFO L124 PetriNetUnfolderBase]: 8567/18667 cut-off events. [2024-11-09 15:07:03,128 INFO L125 PetriNetUnfolderBase]: For 271/271 co-relation queries the response was YES. [2024-11-09 15:07:03,156 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31531 conditions, 18667 events. 8567/18667 cut-off events. For 271/271 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170211 event pairs, 7350 based on Foata normal form. 4/15346 useless extension candidates. Maximal degree in co-relation 31493. Up to 12708 conditions per place. [2024-11-09 15:07:03,211 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 74 selfloop transitions, 2 changer transitions 0/150 dead transitions. [2024-11-09 15:07:03,212 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 150 transitions, 486 flow [2024-11-09 15:07:03,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 15:07:03,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 15:07:03,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 300 transitions. [2024-11-09 15:07:03,214 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5988023952095808 [2024-11-09 15:07:03,214 INFO L175 Difference]: Start difference. First operand has 143 places, 148 transitions, 330 flow. Second operand 3 states and 300 transitions. [2024-11-09 15:07:03,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 150 transitions, 486 flow [2024-11-09 15:07:03,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 150 transitions, 484 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:07:03,218 INFO L231 Difference]: Finished difference. Result has 145 places, 149 transitions, 344 flow [2024-11-09 15:07:03,219 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=148, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=344, PETRI_PLACES=145, PETRI_TRANSITIONS=149} [2024-11-09 15:07:03,219 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 5 predicate places. [2024-11-09 15:07:03,219 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 149 transitions, 344 flow [2024-11-09 15:07:03,220 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:07:03,220 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:07:03,220 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-09 15:07:03,220 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 15:07:03,220 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-09 15:07:03,220 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:07:03,221 INFO L85 PathProgramCache]: Analyzing trace with hash 1561507880, now seen corresponding path program 1 times [2024-11-09 15:07:03,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:07:03,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696916277] [2024-11-09 15:07:03,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:03,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:07:03,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:03,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:07:03,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:07:03,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696916277] [2024-11-09 15:07:03,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696916277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:07:03,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:07:03,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:07:03,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309832983] [2024-11-09 15:07:03,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:07:03,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:07:03,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:07:03,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:07:03,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:07:03,366 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 167 [2024-11-09 15:07:03,366 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 149 transitions, 344 flow. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:07:03,366 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:07:03,366 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 167 [2024-11-09 15:07:03,366 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:07:04,855 INFO L124 PetriNetUnfolderBase]: 8567/18663 cut-off events. [2024-11-09 15:07:04,855 INFO L125 PetriNetUnfolderBase]: For 279/279 co-relation queries the response was YES. [2024-11-09 15:07:04,882 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31543 conditions, 18663 events. 8567/18663 cut-off events. For 279/279 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170241 event pairs, 7350 based on Foata normal form. 4/15346 useless extension candidates. Maximal degree in co-relation 31480. Up to 12712 conditions per place. [2024-11-09 15:07:05,038 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 75 selfloop transitions, 3 changer transitions 0/150 dead transitions. [2024-11-09 15:07:05,039 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 150 transitions, 502 flow [2024-11-09 15:07:05,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:07:05,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:07:05,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 367 transitions. [2024-11-09 15:07:05,043 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5494011976047904 [2024-11-09 15:07:05,043 INFO L175 Difference]: Start difference. First operand has 145 places, 149 transitions, 344 flow. Second operand 4 states and 367 transitions. [2024-11-09 15:07:05,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 150 transitions, 502 flow [2024-11-09 15:07:05,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 150 transitions, 500 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-09 15:07:05,046 INFO L231 Difference]: Finished difference. Result has 149 places, 150 transitions, 360 flow [2024-11-09 15:07:05,047 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=342, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=360, PETRI_PLACES=149, PETRI_TRANSITIONS=150} [2024-11-09 15:07:05,047 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 9 predicate places. [2024-11-09 15:07:05,047 INFO L471 AbstractCegarLoop]: Abstraction has has 149 places, 150 transitions, 360 flow [2024-11-09 15:07:05,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:07:05,048 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:07:05,048 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:07:05,048 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 15:07:05,048 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-09 15:07:05,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:07:05,049 INFO L85 PathProgramCache]: Analyzing trace with hash 91656304, now seen corresponding path program 1 times [2024-11-09 15:07:05,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:07:05,049 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036990020] [2024-11-09 15:07:05,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:05,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:07:05,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:05,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 15:07:05,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:07:05,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036990020] [2024-11-09 15:07:05,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036990020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:07:05,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:07:05,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 15:07:05,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407049930] [2024-11-09 15:07:05,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:07:05,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:07:05,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:07:05,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:07:05,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:07:05,145 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 167 [2024-11-09 15:07:05,145 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 149 places, 150 transitions, 360 flow. Second operand has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:07:05,145 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:07:05,145 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 167 [2024-11-09 15:07:05,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:07:06,452 INFO L124 PetriNetUnfolderBase]: 8567/18661 cut-off events. [2024-11-09 15:07:06,452 INFO L125 PetriNetUnfolderBase]: For 295/295 co-relation queries the response was YES. [2024-11-09 15:07:06,479 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31555 conditions, 18661 events. 8567/18661 cut-off events. For 295/295 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170253 event pairs, 7350 based on Foata normal form. 2/15344 useless extension candidates. Maximal degree in co-relation 31481. Up to 12707 conditions per place. [2024-11-09 15:07:06,534 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 81 selfloop transitions, 3 changer transitions 0/156 dead transitions. [2024-11-09 15:07:06,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 156 transitions, 560 flow [2024-11-09 15:07:06,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:07:06,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:07:06,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 370 transitions. [2024-11-09 15:07:06,536 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5538922155688623 [2024-11-09 15:07:06,536 INFO L175 Difference]: Start difference. First operand has 149 places, 150 transitions, 360 flow. Second operand 4 states and 370 transitions. [2024-11-09 15:07:06,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 156 transitions, 560 flow [2024-11-09 15:07:06,538 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 156 transitions, 552 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:07:06,540 INFO L231 Difference]: Finished difference. Result has 152 places, 151 transitions, 376 flow [2024-11-09 15:07:06,540 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=356, PETRI_DIFFERENCE_MINUEND_PLACES=147, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=376, PETRI_PLACES=152, PETRI_TRANSITIONS=151} [2024-11-09 15:07:06,541 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 12 predicate places. [2024-11-09 15:07:06,541 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 151 transitions, 376 flow [2024-11-09 15:07:06,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.5) internal successors, (294), 4 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:07:06,541 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:07:06,541 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1] [2024-11-09 15:07:06,541 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 15:07:06,542 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-09 15:07:06,542 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:07:06,542 INFO L85 PathProgramCache]: Analyzing trace with hash -2112616051, now seen corresponding path program 1 times [2024-11-09 15:07:06,542 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:07:06,542 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483081153] [2024-11-09 15:07:06,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:06,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:07:06,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:06,724 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:07:06,726 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:07:06,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483081153] [2024-11-09 15:07:06,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483081153] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:07:06,726 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [793648364] [2024-11-09 15:07:06,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:06,726 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:07:06,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:07:06,728 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:07:06,729 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 15:07:06,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:06,894 INFO L255 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-09 15:07:06,895 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:07:06,932 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:07:06,932 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:07:06,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [793648364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:07:06,932 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:07:06,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-09 15:07:06,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924887115] [2024-11-09 15:07:06,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:07:06,933 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 15:07:06,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:07:06,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 15:07:06,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-09 15:07:06,956 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 167 [2024-11-09 15:07:06,957 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 151 transitions, 376 flow. Second operand has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:07:06,957 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:07:06,957 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 167 [2024-11-09 15:07:06,958 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:07:08,432 INFO L124 PetriNetUnfolderBase]: 8567/18659 cut-off events. [2024-11-09 15:07:08,432 INFO L125 PetriNetUnfolderBase]: For 292/292 co-relation queries the response was YES. [2024-11-09 15:07:08,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31557 conditions, 18659 events. 8567/18659 cut-off events. For 292/292 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170231 event pairs, 7350 based on Foata normal form. 2/15342 useless extension candidates. Maximal degree in co-relation 31505. Up to 12700 conditions per place. [2024-11-09 15:07:08,492 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 71 selfloop transitions, 7 changer transitions 0/150 dead transitions. [2024-11-09 15:07:08,493 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 150 transitions, 528 flow [2024-11-09 15:07:08,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 15:07:08,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-09 15:07:08,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 509 transitions. [2024-11-09 15:07:08,494 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5079840319361277 [2024-11-09 15:07:08,495 INFO L175 Difference]: Start difference. First operand has 152 places, 151 transitions, 376 flow. Second operand 6 states and 509 transitions. [2024-11-09 15:07:08,495 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 150 transitions, 528 flow [2024-11-09 15:07:08,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 150 transitions, 524 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:07:08,499 INFO L231 Difference]: Finished difference. Result has 154 places, 150 transitions, 382 flow [2024-11-09 15:07:08,499 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=368, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=382, PETRI_PLACES=154, PETRI_TRANSITIONS=150} [2024-11-09 15:07:08,501 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 14 predicate places. [2024-11-09 15:07:08,501 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 150 transitions, 382 flow [2024-11-09 15:07:08,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 73.0) internal successors, (438), 6 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:07:08,502 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:07:08,502 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1] [2024-11-09 15:07:08,516 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 15:07:08,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:07:08,703 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-09 15:07:08,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:07:08,703 INFO L85 PathProgramCache]: Analyzing trace with hash -1066586943, now seen corresponding path program 1 times [2024-11-09 15:07:08,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:07:08,703 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1302561254] [2024-11-09 15:07:08,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:08,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:07:08,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:08,796 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-09 15:07:08,796 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:07:08,796 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1302561254] [2024-11-09 15:07:08,796 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1302561254] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:07:08,796 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 15:07:08,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 15:07:08,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059366896] [2024-11-09 15:07:08,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:07:08,797 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:07:08,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:07:08,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:07:08,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 15:07:08,806 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 167 [2024-11-09 15:07:08,807 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 150 transitions, 382 flow. Second operand has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:07:08,807 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:07:08,807 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 167 [2024-11-09 15:07:08,807 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:07:09,896 INFO L124 PetriNetUnfolderBase]: 8567/18657 cut-off events. [2024-11-09 15:07:09,897 INFO L125 PetriNetUnfolderBase]: For 308/308 co-relation queries the response was YES. [2024-11-09 15:07:09,939 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31563 conditions, 18657 events. 8567/18657 cut-off events. For 308/308 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170143 event pairs, 7350 based on Foata normal form. 2/15340 useless extension candidates. Maximal degree in co-relation 31504. Up to 12704 conditions per place. [2024-11-09 15:07:09,984 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 71 selfloop transitions, 6 changer transitions 0/150 dead transitions. [2024-11-09 15:07:09,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 150 transitions, 534 flow [2024-11-09 15:07:09,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:07:09,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:07:09,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 366 transitions. [2024-11-09 15:07:09,986 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5479041916167665 [2024-11-09 15:07:09,986 INFO L175 Difference]: Start difference. First operand has 154 places, 150 transitions, 382 flow. Second operand 4 states and 366 transitions. [2024-11-09 15:07:09,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 150 transitions, 534 flow [2024-11-09 15:07:09,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 150 transitions, 519 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-09 15:07:09,989 INFO L231 Difference]: Finished difference. Result has 152 places, 150 transitions, 383 flow [2024-11-09 15:07:09,989 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=363, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=143, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=383, PETRI_PLACES=152, PETRI_TRANSITIONS=150} [2024-11-09 15:07:09,989 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 12 predicate places. [2024-11-09 15:07:09,990 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 150 transitions, 383 flow [2024-11-09 15:07:09,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.0) internal successors, (300), 4 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:07:09,990 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:07:09,990 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:07:09,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 15:07:09,990 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-09 15:07:09,990 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:07:09,990 INFO L85 PathProgramCache]: Analyzing trace with hash 92013456, now seen corresponding path program 1 times [2024-11-09 15:07:09,990 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:07:09,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124493149] [2024-11-09 15:07:09,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:09,991 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:07:10,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:10,089 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:07:10,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:07:10,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124493149] [2024-11-09 15:07:10,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124493149] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:07:10,090 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328750541] [2024-11-09 15:07:10,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:10,091 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:07:10,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:07:10,092 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:07:10,094 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 15:07:10,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:10,252 INFO L255 TraceCheckSpWp]: Trace formula consists of 393 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 15:07:10,253 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:07:10,271 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:07:10,271 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:07:10,299 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:07:10,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [328750541] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:07:10,299 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:07:10,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-09 15:07:10,299 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408835360] [2024-11-09 15:07:10,299 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:07:10,300 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-09 15:07:10,300 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:07:10,300 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-09 15:07:10,300 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-09 15:07:10,323 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 167 [2024-11-09 15:07:10,324 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 150 transitions, 383 flow. Second operand has 10 states, 10 states have (on average 72.9) internal successors, (729), 10 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:07:10,324 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:07:10,324 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 167 [2024-11-09 15:07:10,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:07:12,052 INFO L124 PetriNetUnfolderBase]: 8567/18671 cut-off events. [2024-11-09 15:07:12,052 INFO L125 PetriNetUnfolderBase]: For 340/340 co-relation queries the response was YES. [2024-11-09 15:07:12,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31611 conditions, 18671 events. 8567/18671 cut-off events. For 340/340 co-relation queries the response was YES. Maximal size of possible extension queue 545. Compared 170187 event pairs, 7350 based on Foata normal form. 4/15356 useless extension candidates. Maximal degree in co-relation 31534. Up to 12702 conditions per place. [2024-11-09 15:07:12,142 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 78 selfloop transitions, 7 changer transitions 0/156 dead transitions. [2024-11-09 15:07:12,142 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 156 transitions, 588 flow [2024-11-09 15:07:12,143 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-09 15:07:12,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-09 15:07:12,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 582 transitions. [2024-11-09 15:07:12,145 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49786142001710865 [2024-11-09 15:07:12,145 INFO L175 Difference]: Start difference. First operand has 152 places, 150 transitions, 383 flow. Second operand 7 states and 582 transitions. [2024-11-09 15:07:12,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 156 transitions, 588 flow [2024-11-09 15:07:12,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 156 transitions, 575 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:07:12,149 INFO L231 Difference]: Finished difference. Result has 159 places, 153 transitions, 423 flow [2024-11-09 15:07:12,150 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=375, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=423, PETRI_PLACES=159, PETRI_TRANSITIONS=153} [2024-11-09 15:07:12,150 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 19 predicate places. [2024-11-09 15:07:12,150 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 153 transitions, 423 flow [2024-11-09 15:07:12,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 72.9) internal successors, (729), 10 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:07:12,152 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:07:12,152 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:07:12,165 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-09 15:07:12,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:07:12,353 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-09 15:07:12,353 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:07:12,353 INFO L85 PathProgramCache]: Analyzing trace with hash 1053814896, now seen corresponding path program 2 times [2024-11-09 15:07:12,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:07:12,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [255079311] [2024-11-09 15:07:12,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:12,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:07:12,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:12,525 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 15:07:12,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:07:12,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [255079311] [2024-11-09 15:07:12,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [255079311] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:07:12,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013391776] [2024-11-09 15:07:12,527 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:07:12,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:07:12,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:07:12,554 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:07:12,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 15:07:12,733 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-09 15:07:12,733 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:07:12,734 INFO L255 TraceCheckSpWp]: Trace formula consists of 266 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 15:07:12,736 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:07:12,751 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-09 15:07:12,751 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 15:07:12,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013391776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 15:07:12,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 15:07:12,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 7 [2024-11-09 15:07:12,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919758884] [2024-11-09 15:07:12,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 15:07:12,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 15:07:12,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:07:12,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 15:07:12,753 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-09 15:07:12,759 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 167 [2024-11-09 15:07:12,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 153 transitions, 423 flow. Second operand has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:07:12,760 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:07:12,760 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 167 [2024-11-09 15:07:12,760 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:07:14,343 INFO L124 PetriNetUnfolderBase]: 8430/18117 cut-off events. [2024-11-09 15:07:14,343 INFO L125 PetriNetUnfolderBase]: For 271/271 co-relation queries the response was YES. [2024-11-09 15:07:14,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31019 conditions, 18117 events. 8430/18117 cut-off events. For 271/271 co-relation queries the response was YES. Maximal size of possible extension queue 534. Compared 164777 event pairs, 3464 based on Foata normal form. 22/14742 useless extension candidates. Maximal degree in co-relation 30934. Up to 12461 conditions per place. [2024-11-09 15:07:14,436 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 121 selfloop transitions, 4 changer transitions 0/198 dead transitions. [2024-11-09 15:07:14,436 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 161 places, 198 transitions, 763 flow [2024-11-09 15:07:14,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 15:07:14,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 15:07:14,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 412 transitions. [2024-11-09 15:07:14,438 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6167664670658682 [2024-11-09 15:07:14,438 INFO L175 Difference]: Start difference. First operand has 159 places, 153 transitions, 423 flow. Second operand 4 states and 412 transitions. [2024-11-09 15:07:14,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 161 places, 198 transitions, 763 flow [2024-11-09 15:07:14,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 198 transitions, 759 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 15:07:14,442 INFO L231 Difference]: Finished difference. Result has 159 places, 152 transitions, 425 flow [2024-11-09 15:07:14,442 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=425, PETRI_PLACES=159, PETRI_TRANSITIONS=152} [2024-11-09 15:07:14,443 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 19 predicate places. [2024-11-09 15:07:14,443 INFO L471 AbstractCegarLoop]: Abstraction has has 159 places, 152 transitions, 425 flow [2024-11-09 15:07:14,443 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:07:14,443 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:07:14,443 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 15:07:14,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 15:07:14,644 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:07:14,644 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-09 15:07:14,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:07:14,644 INFO L85 PathProgramCache]: Analyzing trace with hash -1691475399, now seen corresponding path program 1 times [2024-11-09 15:07:14,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:07:14,645 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918450555] [2024-11-09 15:07:14,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:14,645 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:07:14,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:14,839 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 15:07:14,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:07:14,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [918450555] [2024-11-09 15:07:14,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [918450555] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:07:14,839 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1602854692] [2024-11-09 15:07:14,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:14,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:07:14,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:07:14,841 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:07:14,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 15:07:15,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:15,060 INFO L255 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 15:07:15,061 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:07:15,123 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:07:15,124 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:07:15,200 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 1 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 15:07:15,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1602854692] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:07:15,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:07:15,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 19 [2024-11-09 15:07:15,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890172261] [2024-11-09 15:07:15,201 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:07:15,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 15:07:15,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:07:15,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 15:07:15,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-11-09 15:07:15,277 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 167 [2024-11-09 15:07:15,279 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 152 transitions, 425 flow. Second operand has 19 states, 19 states have (on average 70.84210526315789) internal successors, (1346), 19 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:07:15,279 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:07:15,279 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 167 [2024-11-09 15:07:15,279 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:07:18,449 INFO L124 PetriNetUnfolderBase]: 8572/18824 cut-off events. [2024-11-09 15:07:18,450 INFO L125 PetriNetUnfolderBase]: For 681/681 co-relation queries the response was YES. [2024-11-09 15:07:18,491 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32076 conditions, 18824 events. 8572/18824 cut-off events. For 681/681 co-relation queries the response was YES. Maximal size of possible extension queue 555. Compared 171801 event pairs, 7350 based on Foata normal form. 13/15540 useless extension candidates. Maximal degree in co-relation 31912. Up to 12692 conditions per place. [2024-11-09 15:07:18,549 INFO L140 encePairwiseOnDemand]: 158/167 looper letters, 114 selfloop transitions, 55 changer transitions 0/237 dead transitions. [2024-11-09 15:07:18,549 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 237 transitions, 1366 flow [2024-11-09 15:07:18,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-09 15:07:18,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2024-11-09 15:07:18,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 3218 transitions. [2024-11-09 15:07:18,557 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43794229722373434 [2024-11-09 15:07:18,557 INFO L175 Difference]: Start difference. First operand has 159 places, 152 transitions, 425 flow. Second operand 44 states and 3218 transitions. [2024-11-09 15:07:18,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 237 transitions, 1366 flow [2024-11-09 15:07:18,561 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 237 transitions, 1358 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-09 15:07:18,563 INFO L231 Difference]: Finished difference. Result has 212 places, 200 transitions, 976 flow [2024-11-09 15:07:18,564 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=417, PETRI_DIFFERENCE_MINUEND_PLACES=156, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=152, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=976, PETRI_PLACES=212, PETRI_TRANSITIONS=200} [2024-11-09 15:07:18,564 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 72 predicate places. [2024-11-09 15:07:18,564 INFO L471 AbstractCegarLoop]: Abstraction has has 212 places, 200 transitions, 976 flow [2024-11-09 15:07:18,565 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 70.84210526315789) internal successors, (1346), 19 states have internal predecessors, (1346), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:07:18,565 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:07:18,565 INFO L204 CegarLoopForPetriNet]: trace histogram [9, 8, 8, 8, 8, 2, 1, 1, 1, 1, 1] [2024-11-09 15:07:18,579 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-09 15:07:18,769 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:07:18,770 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-09 15:07:18,770 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:07:18,770 INFO L85 PathProgramCache]: Analyzing trace with hash 452279152, now seen corresponding path program 1 times [2024-11-09 15:07:18,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:07:18,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758965704] [2024-11-09 15:07:18,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:18,770 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:07:18,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:19,302 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 15:07:19,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:07:19,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758965704] [2024-11-09 15:07:19,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758965704] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:07:19,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700556917] [2024-11-09 15:07:19,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:19,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:07:19,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:07:19,304 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:07:19,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 15:07:19,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:19,616 INFO L255 TraceCheckSpWp]: Trace formula consists of 1032 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 15:07:19,618 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:07:19,682 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 15:07:19,683 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:07:19,860 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 52 proven. 112 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 15:07:19,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700556917] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:07:19,861 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:07:19,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-11-09 15:07:19,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612912285] [2024-11-09 15:07:19,861 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:07:19,861 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-09 15:07:19,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:07:19,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-09 15:07:19,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-09 15:07:19,924 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 167 [2024-11-09 15:07:19,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 200 transitions, 976 flow. Second operand has 34 states, 34 states have (on average 72.67647058823529) internal successors, (2471), 34 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:07:19,926 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:07:19,926 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 167 [2024-11-09 15:07:19,926 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:07:23,117 INFO L124 PetriNetUnfolderBase]: 8568/18976 cut-off events. [2024-11-09 15:07:23,118 INFO L125 PetriNetUnfolderBase]: For 2943/2943 co-relation queries the response was YES. [2024-11-09 15:07:23,173 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32922 conditions, 18976 events. 8568/18976 cut-off events. For 2943/2943 co-relation queries the response was YES. Maximal size of possible extension queue 555. Compared 172333 event pairs, 7350 based on Foata normal form. 24/15680 useless extension candidates. Maximal degree in co-relation 32547. Up to 12696 conditions per place. [2024-11-09 15:07:23,219 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 147 selfloop transitions, 93 changer transitions 0/310 dead transitions. [2024-11-09 15:07:23,219 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 310 transitions, 2688 flow [2024-11-09 15:07:23,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-09 15:07:23,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-11-09 15:07:23,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 2352 transitions. [2024-11-09 15:07:23,223 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4543171721073981 [2024-11-09 15:07:23,224 INFO L175 Difference]: Start difference. First operand has 212 places, 200 transitions, 976 flow. Second operand 31 states and 2352 transitions. [2024-11-09 15:07:23,224 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 310 transitions, 2688 flow [2024-11-09 15:07:23,232 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 310 transitions, 2580 flow, removed 43 selfloop flow, removed 5 redundant places. [2024-11-09 15:07:23,235 INFO L231 Difference]: Finished difference. Result has 246 places, 251 transitions, 1713 flow [2024-11-09 15:07:23,235 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=916, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=1713, PETRI_PLACES=246, PETRI_TRANSITIONS=251} [2024-11-09 15:07:23,235 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 106 predicate places. [2024-11-09 15:07:23,235 INFO L471 AbstractCegarLoop]: Abstraction has has 246 places, 251 transitions, 1713 flow [2024-11-09 15:07:23,236 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 72.67647058823529) internal successors, (2471), 34 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:07:23,236 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:07:23,236 INFO L204 CegarLoopForPetriNet]: trace histogram [17, 16, 16, 16, 16, 2, 1, 1, 1, 1, 1] [2024-11-09 15:07:23,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 15:07:23,437 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:07:23,437 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-09 15:07:23,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:07:23,438 INFO L85 PathProgramCache]: Analyzing trace with hash -1082161168, now seen corresponding path program 2 times [2024-11-09 15:07:23,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:07:23,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744481122] [2024-11-09 15:07:23,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:23,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 15:07:23,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 15:07:24,814 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 15:07:24,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 15:07:24,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744481122] [2024-11-09 15:07:24,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744481122] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 15:07:24,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828432565] [2024-11-09 15:07:24,815 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 15:07:24,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:07:24,815 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 15:07:24,816 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 15:07:24,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 15:07:25,274 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 15:07:25,274 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 15:07:25,281 INFO L255 TraceCheckSpWp]: Trace formula consists of 1776 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-09 15:07:25,285 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 15:07:25,367 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 15:07:25,367 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 15:07:25,960 INFO L134 CoverageAnalysis]: Checked inductivity of 650 backedges. 108 proven. 540 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-09 15:07:25,960 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828432565] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 15:07:25,960 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 15:07:25,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-11-09 15:07:25,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537629339] [2024-11-09 15:07:25,960 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 15:07:25,961 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-11-09 15:07:25,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 15:07:25,962 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-11-09 15:07:25,963 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-11-09 15:07:26,101 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 167 [2024-11-09 15:07:26,105 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 246 places, 251 transitions, 1713 flow. Second operand has 63 states, 63 states have (on average 72.61904761904762) internal successors, (4575), 63 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:07:26,105 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 15:07:26,105 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 167 [2024-11-09 15:07:26,105 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 15:07:32,702 INFO L124 PetriNetUnfolderBase]: 8568/19261 cut-off events. [2024-11-09 15:07:32,703 INFO L125 PetriNetUnfolderBase]: For 9926/9926 co-relation queries the response was YES. [2024-11-09 15:07:32,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34566 conditions, 19261 events. 8568/19261 cut-off events. For 9926/9926 co-relation queries the response was YES. Maximal size of possible extension queue 555. Compared 172412 event pairs, 7350 based on Foata normal form. 45/15986 useless extension candidates. Maximal degree in co-relation 33770. Up to 12696 conditions per place. [2024-11-09 15:07:32,792 INFO L140 encePairwiseOnDemand]: 162/167 looper letters, 237 selfloop transitions, 183 changer transitions 0/490 dead transitions. [2024-11-09 15:07:32,792 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 490 transitions, 5627 flow [2024-11-09 15:07:32,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-09 15:07:32,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2024-11-09 15:07:32,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 4564 transitions. [2024-11-09 15:07:32,796 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4480219888092667 [2024-11-09 15:07:32,796 INFO L175 Difference]: Start difference. First operand has 246 places, 251 transitions, 1713 flow. Second operand 61 states and 4564 transitions. [2024-11-09 15:07:32,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 490 transitions, 5627 flow [2024-11-09 15:07:32,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 294 places, 490 transitions, 5555 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-11-09 15:07:32,819 INFO L231 Difference]: Finished difference. Result has 310 places, 344 transitions, 3383 flow [2024-11-09 15:07:32,820 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=167, PETRI_DIFFERENCE_MINUEND_FLOW=1641, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=3383, PETRI_PLACES=310, PETRI_TRANSITIONS=344} [2024-11-09 15:07:32,820 INFO L277 CegarLoopForPetriNet]: 140 programPoint places, 170 predicate places. [2024-11-09 15:07:32,820 INFO L471 AbstractCegarLoop]: Abstraction has has 310 places, 344 transitions, 3383 flow [2024-11-09 15:07:32,822 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 72.61904761904762) internal successors, (4575), 63 states have internal predecessors, (4575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-09 15:07:32,822 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 15:07:32,822 INFO L204 CegarLoopForPetriNet]: trace histogram [32, 31, 31, 31, 31, 2, 1, 1, 1, 1, 1] [2024-11-09 15:07:32,842 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 15:07:33,022 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 15:07:33,023 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [t2_funErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, t2_funErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (and 45 more)] === [2024-11-09 15:07:33,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 15:07:33,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1940173771, now seen corresponding path program 3 times [2024-11-09 15:07:33,024 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 15:07:33,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137635812] [2024-11-09 15:07:33,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 15:07:33,024 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms