./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.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 dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:49:59,795 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:49:59,862 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:49:59,865 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:49:59,866 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:49:59,895 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:49:59,896 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:49:59,896 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:49:59,897 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:49:59,900 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:49:59,901 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:49:59,901 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:49:59,901 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:49:59,902 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:49:59,902 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:49:59,902 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:49:59,903 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:49:59,903 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:49:59,903 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:49:59,903 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:49:59,904 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:49:59,904 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:49:59,904 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:49:59,904 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:49:59,905 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:49:59,905 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:49:59,905 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:49:59,905 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:49:59,905 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:49:59,906 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:49:59,906 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:49:59,906 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:49:59,906 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:49:59,907 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:49:59,907 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:49:59,907 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:49:59,907 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:49:59,908 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:49:59,908 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:49:59,908 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:49:59,908 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:49:59,911 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:49:59,911 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:49:59,911 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:49:59,911 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dad265ed8a17f32bb0a174302dfe188f9a15f60b81cc9c28a67851ab05270da2 [2024-11-17 07:50:00,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:50:00,141 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:50:00,143 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:50:00,144 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:50:00,144 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:50:00,145 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2024-11-17 07:50:01,398 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:50:01,628 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:50:01,629 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/goblint-regression/28-race_reach_93-evilcollapse_racefree.i [2024-11-17 07:50:01,647 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/615124d07/eac9cd438c9f4c4eb15341aca5bddc47/FLAG3f2eac7b9 [2024-11-17 07:50:01,973 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/615124d07/eac9cd438c9f4c4eb15341aca5bddc47 [2024-11-17 07:50:01,975 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:50:01,976 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:50:01,977 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:50:01,977 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:50:01,982 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:50:01,982 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:50:01" (1/1) ... [2024-11-17 07:50:01,983 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49998393 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:01, skipping insertion in model container [2024-11-17 07:50:01,983 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:50:01" (1/1) ... [2024-11-17 07:50:02,029 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:50:02,378 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-17 07:50:02,378 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-17 07:50:02,378 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-17 07:50:02,379 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-17 07:50:02,423 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:50:02,458 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:50:02,499 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-17 07:50:02,500 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-17 07:50:02,500 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-17 07:50:02,501 WARN L1684 CHandler]: Possible shadowing of function new [2024-11-17 07:50:02,514 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:50:02,571 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:50:02,571 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02 WrapperNode [2024-11-17 07:50:02,571 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:50:02,573 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:50:02,573 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:50:02,573 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:50:02,581 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02" (1/1) ... [2024-11-17 07:50:02,600 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02" (1/1) ... [2024-11-17 07:50:02,634 INFO L138 Inliner]: procedures = 281, calls = 126, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 312 [2024-11-17 07:50:02,635 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:50:02,635 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:50:02,635 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:50:02,635 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:50:02,644 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02" (1/1) ... [2024-11-17 07:50:02,645 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02" (1/1) ... [2024-11-17 07:50:02,649 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02" (1/1) ... [2024-11-17 07:50:02,680 INFO L175 MemorySlicer]: Split 98 memory accesses to 4 slices as follows [2, 5, 2, 89]. 91 percent of accesses are in the largest equivalence class. The 77 initializations are split as follows [2, 5, 0, 70]. The 12 writes are split as follows [0, 0, 1, 11]. [2024-11-17 07:50:02,680 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02" (1/1) ... [2024-11-17 07:50:02,681 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02" (1/1) ... [2024-11-17 07:50:02,695 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02" (1/1) ... [2024-11-17 07:50:02,696 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02" (1/1) ... [2024-11-17 07:50:02,698 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02" (1/1) ... [2024-11-17 07:50:02,700 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02" (1/1) ... [2024-11-17 07:50:02,704 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:50:02,705 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:50:02,705 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:50:02,705 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:50:02,706 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02" (1/1) ... [2024-11-17 07:50:02,711 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:50:02,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:50:02,762 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-17 07:50:02,769 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-17 07:50:02,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-17 07:50:02,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-17 07:50:02,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-17 07:50:02,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-17 07:50:02,815 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-17 07:50:02,815 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-17 07:50:02,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-17 07:50:02,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-17 07:50:02,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-17 07:50:02,815 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-17 07:50:02,816 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-17 07:50:02,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 07:50:02,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 07:50:02,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-17 07:50:02,816 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-17 07:50:02,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 07:50:02,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 07:50:02,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-17 07:50:02,816 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-17 07:50:02,816 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-17 07:50:02,816 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-17 07:50:02,817 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:50:02,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-17 07:50:02,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-17 07:50:02,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-17 07:50:02,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-17 07:50:02,817 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-17 07:50:02,817 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-17 07:50:02,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:50:02,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 07:50:02,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-17 07:50:02,817 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-17 07:50:02,817 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:50:02,818 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:50:02,819 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:50:02,980 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:50:02,982 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:50:03,392 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082: havoc main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset; [2024-11-17 07:50:03,392 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1082-1: SUMMARY for call ULTIMATE.dealloc(main_~#t_ids~0#1.base, main_~#t_ids~0#1.offset); srcloc: null [2024-11-17 07:50:03,479 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:50:03,479 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:50:03,976 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:50:03,977 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:50:03,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:50:03 BoogieIcfgContainer [2024-11-17 07:50:03,977 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:50:03,979 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:50:03,979 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:50:03,982 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:50:03,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:50:01" (1/3) ... [2024-11-17 07:50:03,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b519eac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:50:03, skipping insertion in model container [2024-11-17 07:50:03,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:50:02" (2/3) ... [2024-11-17 07:50:03,984 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b519eac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:50:03, skipping insertion in model container [2024-11-17 07:50:03,984 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:50:03" (3/3) ... [2024-11-17 07:50:03,985 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_93-evilcollapse_racefree.i [2024-11-17 07:50:04,001 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:50:04,002 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2024-11-17 07:50:04,002 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:50:04,056 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-17 07:50:04,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 88 places, 107 transitions, 221 flow [2024-11-17 07:50:04,125 INFO L124 PetriNetUnfolderBase]: 24/117 cut-off events. [2024-11-17 07:50:04,126 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-17 07:50:04,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 122 conditions, 117 events. 24/117 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 338 event pairs, 0 based on Foata normal form. 0/74 useless extension candidates. Maximal degree in co-relation 76. Up to 4 conditions per place. [2024-11-17 07:50:04,130 INFO L82 GeneralOperation]: Start removeDead. Operand has 88 places, 107 transitions, 221 flow [2024-11-17 07:50:04,134 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 88 places, 106 transitions, 219 flow [2024-11-17 07:50:04,146 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:50:04,152 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;@4cff7e47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:50:04,154 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-17 07:50:04,176 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:50:04,176 INFO L124 PetriNetUnfolderBase]: 3/17 cut-off events. [2024-11-17 07:50:04,177 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:50:04,177 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:04,177 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 07:50:04,178 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:50:04,182 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:04,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1531344667, now seen corresponding path program 1 times [2024-11-17 07:50:04,191 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:04,191 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134881189] [2024-11-17 07:50:04,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:04,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 07:50:04,365 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1523654088] [2024-11-17 07:50:04,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:04,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:50:04,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:50:04,368 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:50:04,370 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 07:50:04,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:04,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-17 07:50:04,499 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:50:04,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:50:04,532 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:50:04,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:04,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [134881189] [2024-11-17 07:50:04,533 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-17 07:50:04,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523654088] [2024-11-17 07:50:04,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523654088] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:50:04,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:50:04,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 07:50:04,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612600485] [2024-11-17 07:50:04,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:50:04,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:50:04,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:04,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:50:04,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:50:04,582 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 107 [2024-11-17 07:50:04,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 106 transitions, 219 flow. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:50:04,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:04,586 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 107 [2024-11-17 07:50:04,587 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:04,849 INFO L124 PetriNetUnfolderBase]: 121/459 cut-off events. [2024-11-17 07:50:04,849 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-17 07:50:04,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 723 conditions, 459 events. 121/459 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2466 event pairs, 100 based on Foata normal form. 115/525 useless extension candidates. Maximal degree in co-relation 644. Up to 254 conditions per place. [2024-11-17 07:50:04,855 INFO L140 encePairwiseOnDemand]: 86/107 looper letters, 42 selfloop transitions, 2 changer transitions 0/95 dead transitions. [2024-11-17 07:50:04,856 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 95 transitions, 285 flow [2024-11-17 07:50:04,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:50:04,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:50:04,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 218 transitions. [2024-11-17 07:50:04,869 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6791277258566978 [2024-11-17 07:50:04,871 INFO L175 Difference]: Start difference. First operand has 88 places, 106 transitions, 219 flow. Second operand 3 states and 218 transitions. [2024-11-17 07:50:04,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 95 transitions, 285 flow [2024-11-17 07:50:04,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 95 transitions, 285 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:50:04,878 INFO L231 Difference]: Finished difference. Result has 91 places, 91 transitions, 203 flow [2024-11-17 07:50:04,879 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=203, PETRI_PLACES=91, PETRI_TRANSITIONS=91} [2024-11-17 07:50:04,883 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 3 predicate places. [2024-11-17 07:50:04,884 INFO L471 AbstractCegarLoop]: Abstraction has has 91 places, 91 transitions, 203 flow [2024-11-17 07:50:04,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:50:04,884 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:04,884 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:50:04,903 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-17 07:50:05,085 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 [2024-11-17 07:50:05,088 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:50:05,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:05,089 INFO L85 PathProgramCache]: Analyzing trace with hash 227047022, now seen corresponding path program 1 times [2024-11-17 07:50:05,089 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:05,089 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426191741] [2024-11-17 07:50:05,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:05,089 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:05,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:05,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:50:05,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:05,228 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426191741] [2024-11-17 07:50:05,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1426191741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:50:05,228 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:50:05,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:50:05,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095713110] [2024-11-17 07:50:05,229 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:50:05,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:50:05,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:05,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:50:05,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:50:05,238 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 107 [2024-11-17 07:50:05,239 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 91 transitions, 203 flow. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:50:05,240 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:05,241 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 107 [2024-11-17 07:50:05,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:05,421 INFO L124 PetriNetUnfolderBase]: 121/475 cut-off events. [2024-11-17 07:50:05,422 INFO L125 PetriNetUnfolderBase]: For 7/7 co-relation queries the response was YES. [2024-11-17 07:50:05,424 INFO L83 FinitePrefix]: Finished finitePrefix Result has 753 conditions, 475 events. 121/475 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2555 event pairs, 100 based on Foata normal form. 4/432 useless extension candidates. Maximal degree in co-relation 711. Up to 260 conditions per place. [2024-11-17 07:50:05,427 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 40 selfloop transitions, 2 changer transitions 0/93 dead transitions. [2024-11-17 07:50:05,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 93 transitions, 291 flow [2024-11-17 07:50:05,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:50:05,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:50:05,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 197 transitions. [2024-11-17 07:50:05,430 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6137071651090342 [2024-11-17 07:50:05,431 INFO L175 Difference]: Start difference. First operand has 91 places, 91 transitions, 203 flow. Second operand 3 states and 197 transitions. [2024-11-17 07:50:05,431 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 93 transitions, 291 flow [2024-11-17 07:50:05,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 93 transitions, 289 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:50:05,433 INFO L231 Difference]: Finished difference. Result has 93 places, 92 transitions, 217 flow [2024-11-17 07:50:05,433 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=201, PETRI_DIFFERENCE_MINUEND_PLACES=90, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=217, PETRI_PLACES=93, PETRI_TRANSITIONS=92} [2024-11-17 07:50:05,434 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 5 predicate places. [2024-11-17 07:50:05,434 INFO L471 AbstractCegarLoop]: Abstraction has has 93 places, 92 transitions, 217 flow [2024-11-17 07:50:05,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:50:05,438 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:05,438 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:50:05,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 07:50:05,439 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:50:05,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:05,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1551534899, now seen corresponding path program 1 times [2024-11-17 07:50:05,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:05,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [877061010] [2024-11-17 07:50:05,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:05,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:05,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:05,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:50:05,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:05,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [877061010] [2024-11-17 07:50:05,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [877061010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:50:05,636 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:50:05,636 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:50:05,636 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912451683] [2024-11-17 07:50:05,636 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:50:05,637 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:50:05,637 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:05,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:50:05,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:50:05,656 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 107 [2024-11-17 07:50:05,657 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 92 transitions, 217 flow. Second operand has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:50:05,657 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:05,657 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 107 [2024-11-17 07:50:05,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:05,883 INFO L124 PetriNetUnfolderBase]: 121/471 cut-off events. [2024-11-17 07:50:05,884 INFO L125 PetriNetUnfolderBase]: For 21/21 co-relation queries the response was YES. [2024-11-17 07:50:05,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 765 conditions, 471 events. 121/471 cut-off events. For 21/21 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 2536 event pairs, 100 based on Foata normal form. 4/432 useless extension candidates. Maximal degree in co-relation 697. Up to 264 conditions per place. [2024-11-17 07:50:05,887 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 41 selfloop transitions, 3 changer transitions 0/93 dead transitions. [2024-11-17 07:50:05,888 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 93 transitions, 307 flow [2024-11-17 07:50:05,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:50:05,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:50:05,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 241 transitions. [2024-11-17 07:50:05,889 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5630841121495327 [2024-11-17 07:50:05,889 INFO L175 Difference]: Start difference. First operand has 93 places, 92 transitions, 217 flow. Second operand 4 states and 241 transitions. [2024-11-17 07:50:05,889 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 93 transitions, 307 flow [2024-11-17 07:50:05,890 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 93 transitions, 305 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:50:05,894 INFO L231 Difference]: Finished difference. Result has 97 places, 93 transitions, 233 flow [2024-11-17 07:50:05,894 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=215, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=233, PETRI_PLACES=97, PETRI_TRANSITIONS=93} [2024-11-17 07:50:05,895 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 9 predicate places. [2024-11-17 07:50:05,895 INFO L471 AbstractCegarLoop]: Abstraction has has 97 places, 93 transitions, 233 flow [2024-11-17 07:50:05,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.0) internal successors, (200), 4 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:50:05,895 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:05,895 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:50:05,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 07:50:05,895 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:50:05,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:05,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1026129103, now seen corresponding path program 1 times [2024-11-17 07:50:05,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:05,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239760261] [2024-11-17 07:50:05,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:05,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:05,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:06,035 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:50:06,036 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:06,036 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239760261] [2024-11-17 07:50:06,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239760261] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:50:06,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359315358] [2024-11-17 07:50:06,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:06,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:50:06,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:50:06,039 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:50:06,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 07:50:06,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:06,173 INFO L255 TraceCheckSpWp]: Trace formula consists of 354 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 07:50:06,175 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:50:06,221 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:50:06,221 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:50:06,249 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:50:06,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359315358] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:50:06,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:50:06,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-17 07:50:06,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1226819783] [2024-11-17 07:50:06,250 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:50:06,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 07:50:06,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:06,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 07:50:06,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-17 07:50:06,283 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 107 [2024-11-17 07:50:06,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 93 transitions, 233 flow. Second operand has 10 states, 10 states have (on average 49.6) internal successors, (496), 10 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:50:06,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:06,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 107 [2024-11-17 07:50:06,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:06,675 INFO L124 PetriNetUnfolderBase]: 121/491 cut-off events. [2024-11-17 07:50:06,675 INFO L125 PetriNetUnfolderBase]: For 53/53 co-relation queries the response was YES. [2024-11-17 07:50:06,676 INFO L83 FinitePrefix]: Finished finitePrefix Result has 827 conditions, 491 events. 121/491 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2647 event pairs, 100 based on Foata normal form. 6/454 useless extension candidates. Maximal degree in co-relation 718. Up to 254 conditions per place. [2024-11-17 07:50:06,677 INFO L140 encePairwiseOnDemand]: 100/107 looper letters, 44 selfloop transitions, 9 changer transitions 0/101 dead transitions. [2024-11-17 07:50:06,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 101 transitions, 369 flow [2024-11-17 07:50:06,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-17 07:50:06,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-17 07:50:06,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 487 transitions. [2024-11-17 07:50:06,679 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.505711318795431 [2024-11-17 07:50:06,679 INFO L175 Difference]: Start difference. First operand has 97 places, 93 transitions, 233 flow. Second operand 9 states and 487 transitions. [2024-11-17 07:50:06,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 101 transitions, 369 flow [2024-11-17 07:50:06,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 101 transitions, 365 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:50:06,682 INFO L231 Difference]: Finished difference. Result has 107 places, 97 transitions, 283 flow [2024-11-17 07:50:06,682 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=229, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=283, PETRI_PLACES=107, PETRI_TRANSITIONS=97} [2024-11-17 07:50:06,682 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 19 predicate places. [2024-11-17 07:50:06,683 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 97 transitions, 283 flow [2024-11-17 07:50:06,683 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 49.6) internal successors, (496), 10 states have internal predecessors, (496), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:50:06,683 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:06,683 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 07:50:06,700 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 07:50:06,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2024-11-17 07:50:06,885 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:50:06,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:06,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1745173132, now seen corresponding path program 1 times [2024-11-17 07:50:06,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:06,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409089030] [2024-11-17 07:50:06,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:06,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:06,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:07,042 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:50:07,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:07,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409089030] [2024-11-17 07:50:07,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409089030] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:50:07,043 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072808219] [2024-11-17 07:50:07,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:07,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:50:07,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:50:07,044 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:50:07,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 07:50:07,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:07,215 INFO L255 TraceCheckSpWp]: Trace formula consists of 440 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:50:07,217 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:50:07,266 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:50:07,266 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:50:07,266 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072808219] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:50:07,266 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:50:07,266 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-17 07:50:07,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1187672490] [2024-11-17 07:50:07,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:50:07,267 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:50:07,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:07,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:50:07,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:50:07,283 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 107 [2024-11-17 07:50:07,283 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 97 transitions, 283 flow. Second operand has 6 states, 6 states have (on average 50.0) internal successors, (300), 6 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) [2024-11-17 07:50:07,283 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:07,283 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 107 [2024-11-17 07:50:07,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:07,583 INFO L124 PetriNetUnfolderBase]: 121/487 cut-off events. [2024-11-17 07:50:07,583 INFO L125 PetriNetUnfolderBase]: For 115/115 co-relation queries the response was YES. [2024-11-17 07:50:07,584 INFO L83 FinitePrefix]: Finished finitePrefix Result has 844 conditions, 487 events. 121/487 cut-off events. For 115/115 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2604 event pairs, 100 based on Foata normal form. 4/448 useless extension candidates. Maximal degree in co-relation 736. Up to 250 conditions per place. [2024-11-17 07:50:07,585 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 37 selfloop transitions, 8 changer transitions 0/95 dead transitions. [2024-11-17 07:50:07,585 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 95 transitions, 359 flow [2024-11-17 07:50:07,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:50:07,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:50:07,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 337 transitions. [2024-11-17 07:50:07,587 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5249221183800623 [2024-11-17 07:50:07,587 INFO L175 Difference]: Start difference. First operand has 107 places, 97 transitions, 283 flow. Second operand 6 states and 337 transitions. [2024-11-17 07:50:07,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 95 transitions, 359 flow [2024-11-17 07:50:07,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 95 transitions, 351 flow, removed 2 selfloop flow, removed 2 redundant places. [2024-11-17 07:50:07,589 INFO L231 Difference]: Finished difference. Result has 107 places, 95 transitions, 277 flow [2024-11-17 07:50:07,590 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=261, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=277, PETRI_PLACES=107, PETRI_TRANSITIONS=95} [2024-11-17 07:50:07,590 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 19 predicate places. [2024-11-17 07:50:07,590 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 95 transitions, 277 flow [2024-11-17 07:50:07,590 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 50.0) internal successors, (300), 6 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) [2024-11-17 07:50:07,591 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:07,591 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 2, 1, 1, 1, 1] [2024-11-17 07:50:07,606 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-17 07:50:07,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:50:07,792 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:50:07,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:07,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1607151335, now seen corresponding path program 1 times [2024-11-17 07:50:07,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:07,793 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096957758] [2024-11-17 07:50:07,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:07,793 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:07,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:07,917 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-17 07:50:07,918 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:07,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096957758] [2024-11-17 07:50:07,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096957758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:50:07,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:50:07,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:50:07,918 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204418270] [2024-11-17 07:50:07,918 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:50:07,919 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:50:07,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:07,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:50:07,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:50:07,931 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 50 out of 107 [2024-11-17 07:50:07,931 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 95 transitions, 277 flow. Second operand has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:50:07,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:07,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 50 of 107 [2024-11-17 07:50:07,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:08,080 INFO L124 PetriNetUnfolderBase]: 121/485 cut-off events. [2024-11-17 07:50:08,080 INFO L125 PetriNetUnfolderBase]: For 137/137 co-relation queries the response was YES. [2024-11-17 07:50:08,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 849 conditions, 485 events. 121/485 cut-off events. For 137/137 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2596 event pairs, 100 based on Foata normal form. 2/444 useless extension candidates. Maximal degree in co-relation 742. Up to 258 conditions per place. [2024-11-17 07:50:08,082 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 36 selfloop transitions, 9 changer transitions 0/95 dead transitions. [2024-11-17 07:50:08,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 109 places, 95 transitions, 365 flow [2024-11-17 07:50:08,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:50:08,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:50:08,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 240 transitions. [2024-11-17 07:50:08,084 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5607476635514018 [2024-11-17 07:50:08,084 INFO L175 Difference]: Start difference. First operand has 107 places, 95 transitions, 277 flow. Second operand 4 states and 240 transitions. [2024-11-17 07:50:08,084 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 109 places, 95 transitions, 365 flow [2024-11-17 07:50:08,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 95 transitions, 349 flow, removed 2 selfloop flow, removed 6 redundant places. [2024-11-17 07:50:08,087 INFO L231 Difference]: Finished difference. Result has 104 places, 95 transitions, 285 flow [2024-11-17 07:50:08,088 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=285, PETRI_PLACES=104, PETRI_TRANSITIONS=95} [2024-11-17 07:50:08,088 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 16 predicate places. [2024-11-17 07:50:08,088 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 95 transitions, 285 flow [2024-11-17 07:50:08,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 52.0) internal successors, (208), 4 states have internal predecessors, (208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:50:08,088 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:08,089 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2024-11-17 07:50:08,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 07:50:08,089 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:50:08,089 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:08,090 INFO L85 PathProgramCache]: Analyzing trace with hash 412611409, now seen corresponding path program 2 times [2024-11-17 07:50:08,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:08,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966249818] [2024-11-17 07:50:08,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:08,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:08,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:08,284 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-17 07:50:08,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:08,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966249818] [2024-11-17 07:50:08,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966249818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:50:08,285 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:50:08,285 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:50:08,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804952684] [2024-11-17 07:50:08,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:50:08,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:50:08,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:08,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:50:08,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:50:08,296 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 49 out of 107 [2024-11-17 07:50:08,297 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 95 transitions, 285 flow. Second operand has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:50:08,297 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:08,298 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 49 of 107 [2024-11-17 07:50:08,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:08,536 INFO L124 PetriNetUnfolderBase]: 121/483 cut-off events. [2024-11-17 07:50:08,536 INFO L125 PetriNetUnfolderBase]: For 158/158 co-relation queries the response was YES. [2024-11-17 07:50:08,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 855 conditions, 483 events. 121/483 cut-off events. For 158/158 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2604 event pairs, 100 based on Foata normal form. 2/444 useless extension candidates. Maximal degree in co-relation 723. Up to 262 conditions per place. [2024-11-17 07:50:08,538 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 51 selfloop transitions, 3 changer transitions 0/103 dead transitions. [2024-11-17 07:50:08,538 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 103 transitions, 459 flow [2024-11-17 07:50:08,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:50:08,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:50:08,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 244 transitions. [2024-11-17 07:50:08,540 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5700934579439252 [2024-11-17 07:50:08,540 INFO L175 Difference]: Start difference. First operand has 104 places, 95 transitions, 285 flow. Second operand 4 states and 244 transitions. [2024-11-17 07:50:08,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 103 transitions, 459 flow [2024-11-17 07:50:08,542 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 103 transitions, 435 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-17 07:50:08,543 INFO L231 Difference]: Finished difference. Result has 107 places, 96 transitions, 290 flow [2024-11-17 07:50:08,544 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=290, PETRI_PLACES=107, PETRI_TRANSITIONS=96} [2024-11-17 07:50:08,545 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 19 predicate places. [2024-11-17 07:50:08,545 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 96 transitions, 290 flow [2024-11-17 07:50:08,545 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 50.5) internal successors, (202), 4 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:50:08,546 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:08,546 INFO L204 CegarLoopForPetriNet]: trace histogram [4, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:50:08,546 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 07:50:08,547 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:50:08,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:08,547 INFO L85 PathProgramCache]: Analyzing trace with hash -1983702005, now seen corresponding path program 1 times [2024-11-17 07:50:08,547 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:08,547 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015911652] [2024-11-17 07:50:08,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:08,547 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:08,741 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-17 07:50:08,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:08,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015911652] [2024-11-17 07:50:08,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015911652] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:50:08,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460206955] [2024-11-17 07:50:08,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:08,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:50:08,742 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:50:08,744 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) [2024-11-17 07:50:08,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-17 07:50:08,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:08,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 589 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-17 07:50:08,943 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:50:09,023 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:50:09,023 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:50:09,123 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:50:09,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460206955] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:50:09,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:50:09,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 19 [2024-11-17 07:50:09,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [534173466] [2024-11-17 07:50:09,124 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:50:09,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-17 07:50:09,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:09,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-17 07:50:09,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2024-11-17 07:50:09,230 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 107 [2024-11-17 07:50:09,231 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 96 transitions, 290 flow. Second operand has 19 states, 19 states have (on average 47.0) internal successors, (893), 19 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:50:09,231 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:09,231 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 107 [2024-11-17 07:50:09,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:10,296 INFO L124 PetriNetUnfolderBase]: 126/603 cut-off events. [2024-11-17 07:50:10,297 INFO L125 PetriNetUnfolderBase]: For 537/537 co-relation queries the response was YES. [2024-11-17 07:50:10,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1235 conditions, 603 events. 126/603 cut-off events. For 537/537 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2789 event pairs, 100 based on Foata normal form. 13/575 useless extension candidates. Maximal degree in co-relation 1071. Up to 253 conditions per place. [2024-11-17 07:50:10,299 INFO L140 encePairwiseOnDemand]: 97/107 looper letters, 83 selfloop transitions, 55 changer transitions 0/183 dead transitions. [2024-11-17 07:50:10,300 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 150 places, 183 transitions, 1179 flow [2024-11-17 07:50:10,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-17 07:50:10,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2024-11-17 07:50:10,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 2131 transitions. [2024-11-17 07:50:10,325 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4526338147833475 [2024-11-17 07:50:10,326 INFO L175 Difference]: Start difference. First operand has 107 places, 96 transitions, 290 flow. Second operand 44 states and 2131 transitions. [2024-11-17 07:50:10,326 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 150 places, 183 transitions, 1179 flow [2024-11-17 07:50:10,329 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 148 places, 183 transitions, 1175 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-17 07:50:10,331 INFO L231 Difference]: Finished difference. Result has 165 places, 144 transitions, 862 flow [2024-11-17 07:50:10,331 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=862, PETRI_PLACES=165, PETRI_TRANSITIONS=144} [2024-11-17 07:50:10,332 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 77 predicate places. [2024-11-17 07:50:10,332 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 144 transitions, 862 flow [2024-11-17 07:50:10,333 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 47.0) internal successors, (893), 19 states have internal predecessors, (893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:50:10,333 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:10,333 INFO L204 CegarLoopForPetriNet]: trace histogram [10, 9, 8, 8, 8, 8, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 07:50:10,349 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-17 07:50:10,533 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 [2024-11-17 07:50:10,534 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:50:10,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:10,535 INFO L85 PathProgramCache]: Analyzing trace with hash 656834973, now seen corresponding path program 1 times [2024-11-17 07:50:10,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:10,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776278157] [2024-11-17 07:50:10,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:10,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:10,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:11,152 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 69 proven. 140 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:50:11,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:11,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776278157] [2024-11-17 07:50:11,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776278157] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:50:11,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [620808629] [2024-11-17 07:50:11,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:11,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:50:11,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:50:11,155 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) [2024-11-17 07:50:11,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-17 07:50:11,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:11,493 INFO L255 TraceCheckSpWp]: Trace formula consists of 1046 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-17 07:50:11,496 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:50:11,577 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 69 proven. 140 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:50:11,577 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:50:11,824 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 69 proven. 140 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:50:11,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [620808629] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:50:11,825 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:50:11,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2024-11-17 07:50:11,825 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [229330767] [2024-11-17 07:50:11,825 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:50:11,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-17 07:50:11,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:11,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-17 07:50:11,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2024-11-17 07:50:11,899 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 107 [2024-11-17 07:50:11,901 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 144 transitions, 862 flow. Second operand has 34 states, 34 states have (on average 49.705882352941174) internal successors, (1690), 34 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:50:11,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:11,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 107 [2024-11-17 07:50:11,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:13,412 INFO L124 PetriNetUnfolderBase]: 122/779 cut-off events. [2024-11-17 07:50:13,412 INFO L125 PetriNetUnfolderBase]: For 5755/5755 co-relation queries the response was YES. [2024-11-17 07:50:13,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2185 conditions, 779 events. 122/779 cut-off events. For 5755/5755 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2867 event pairs, 100 based on Foata normal form. 24/762 useless extension candidates. Maximal degree in co-relation 1764. Up to 258 conditions per place. [2024-11-17 07:50:13,417 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 113 selfloop transitions, 93 changer transitions 0/254 dead transitions. [2024-11-17 07:50:13,417 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 254 transitions, 2522 flow [2024-11-17 07:50:13,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-17 07:50:13,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2024-11-17 07:50:13,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 1605 transitions. [2024-11-17 07:50:13,421 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4838709677419355 [2024-11-17 07:50:13,421 INFO L175 Difference]: Start difference. First operand has 165 places, 144 transitions, 862 flow. Second operand 31 states and 1605 transitions. [2024-11-17 07:50:13,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 254 transitions, 2522 flow [2024-11-17 07:50:13,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 254 transitions, 2420 flow, removed 40 selfloop flow, removed 5 redundant places. [2024-11-17 07:50:13,436 INFO L231 Difference]: Finished difference. Result has 199 places, 195 transitions, 1598 flow [2024-11-17 07:50:13,436 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=808, PETRI_DIFFERENCE_MINUEND_PLACES=160, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=45, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=31, PETRI_FLOW=1598, PETRI_PLACES=199, PETRI_TRANSITIONS=195} [2024-11-17 07:50:13,437 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 111 predicate places. [2024-11-17 07:50:13,437 INFO L471 AbstractCegarLoop]: Abstraction has has 199 places, 195 transitions, 1598 flow [2024-11-17 07:50:13,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 49.705882352941174) internal successors, (1690), 34 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:50:13,438 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:13,438 INFO L204 CegarLoopForPetriNet]: trace histogram [18, 17, 16, 16, 16, 16, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 07:50:13,453 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-17 07:50:13,638 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 [2024-11-17 07:50:13,639 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:50:13,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:13,639 INFO L85 PathProgramCache]: Analyzing trace with hash 276887973, now seen corresponding path program 2 times [2024-11-17 07:50:13,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:13,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864638681] [2024-11-17 07:50:13,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:13,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:50:13,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:50:15,196 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 141 proven. 660 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:50:15,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:50:15,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864638681] [2024-11-17 07:50:15,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864638681] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:50:15,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2008674985] [2024-11-17 07:50:15,197 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:50:15,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:50:15,197 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:50:15,199 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) [2024-11-17 07:50:15,200 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-17 07:50:15,761 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-17 07:50:15,761 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:50:15,769 INFO L255 TraceCheckSpWp]: Trace formula consists of 1798 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-17 07:50:15,774 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:50:15,890 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 141 proven. 660 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:50:15,891 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:50:16,552 INFO L134 CoverageAnalysis]: Checked inductivity of 804 backedges. 141 proven. 660 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-17 07:50:16,553 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2008674985] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:50:16,553 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:50:16,553 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 63 [2024-11-17 07:50:16,553 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87872765] [2024-11-17 07:50:16,553 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:50:16,554 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-11-17 07:50:16,554 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:50:16,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-11-17 07:50:16,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1023, Invalid=2883, Unknown=0, NotChecked=0, Total=3906 [2024-11-17 07:50:16,640 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 48 out of 107 [2024-11-17 07:50:16,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 195 transitions, 1598 flow. Second operand has 63 states, 63 states have (on average 49.63492063492063) internal successors, (3127), 63 states have internal predecessors, (3127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:50:16,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:50:16,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 48 of 107 [2024-11-17 07:50:16,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:50:19,526 INFO L124 PetriNetUnfolderBase]: 122/1109 cut-off events. [2024-11-17 07:50:19,526 INFO L125 PetriNetUnfolderBase]: For 20260/20260 co-relation queries the response was YES. [2024-11-17 07:50:19,531 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3892 conditions, 1109 events. 122/1109 cut-off events. For 20260/20260 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2985 event pairs, 100 based on Foata normal form. 45/1113 useless extension candidates. Maximal degree in co-relation 3199. Up to 258 conditions per place. [2024-11-17 07:50:19,536 INFO L140 encePairwiseOnDemand]: 102/107 looper letters, 203 selfloop transitions, 183 changer transitions 0/434 dead transitions. [2024-11-17 07:50:19,536 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 434 transitions, 5481 flow [2024-11-17 07:50:19,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2024-11-17 07:50:19,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61 states. [2024-11-17 07:50:19,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 3127 transitions. [2024-11-17 07:50:19,546 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4790868699249272 [2024-11-17 07:50:19,546 INFO L175 Difference]: Start difference. First operand has 199 places, 195 transitions, 1598 flow. Second operand 61 states and 3127 transitions. [2024-11-17 07:50:19,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 434 transitions, 5481 flow [2024-11-17 07:50:19,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 434 transitions, 5409 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-11-17 07:50:19,582 INFO L231 Difference]: Finished difference. Result has 263 places, 288 transitions, 3254 flow [2024-11-17 07:50:19,582 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=107, PETRI_DIFFERENCE_MINUEND_FLOW=1526, PETRI_DIFFERENCE_MINUEND_PLACES=187, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=195, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=93, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=61, PETRI_FLOW=3254, PETRI_PLACES=263, PETRI_TRANSITIONS=288} [2024-11-17 07:50:19,583 INFO L277 CegarLoopForPetriNet]: 88 programPoint places, 175 predicate places. [2024-11-17 07:50:19,583 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 288 transitions, 3254 flow [2024-11-17 07:50:19,587 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 49.63492063492063) internal successors, (3127), 63 states have internal predecessors, (3127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:50:19,587 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:50:19,587 INFO L204 CegarLoopForPetriNet]: trace histogram [33, 32, 31, 31, 31, 31, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 07:50:19,605 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-17 07:50:19,788 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 [2024-11-17 07:50:19,788 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:50:19,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:50:19,789 INFO L85 PathProgramCache]: Analyzing trace with hash 441838420, now seen corresponding path program 3 times [2024-11-17 07:50:19,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:50:19,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686687576] [2024-11-17 07:50:19,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:50:19,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:51:36,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-17 07:51:36,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1307682764] [2024-11-17 07:51:36,381 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-17 07:51:36,381 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:51:36,381 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:51:36,382 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) [2024-11-17 07:51:36,383 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process