./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c --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/weaver/popl20-bad-three-array-sum-alt.wvr.c -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 20832c4ec3f8ccecbcf7cfcec0aecbbc925bfb9e6d8397db46b5825bb40681b3 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:54:32,904 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:54:32,960 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:54:32,965 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:54:32,967 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:54:32,990 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:54:32,990 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:54:32,991 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:54:32,992 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:54:32,992 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:54:32,993 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:54:32,993 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:54:32,994 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:54:32,995 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:54:32,995 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:54:32,996 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:54:32,996 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:54:32,996 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:54:32,996 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:54:32,997 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:54:32,997 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:54:33,000 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:54:33,000 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:54:33,000 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:54:33,000 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:54:33,001 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:54:33,001 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:54:33,001 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:54:33,001 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:54:33,001 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:54:33,001 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:54:33,002 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:54:33,002 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:54:33,002 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:54:33,002 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:54:33,002 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:54:33,003 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:54:33,003 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:54:33,003 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:54:33,003 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:54:33,004 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:54:33,004 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:54:33,004 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:54:33,004 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:54:33,005 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 20832c4ec3f8ccecbcf7cfcec0aecbbc925bfb9e6d8397db46b5825bb40681b3 [2024-11-17 07:54:33,187 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:54:33,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:54:33,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:54:33,211 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:54:33,211 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:54:33,212 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c [2024-11-17 07:54:34,568 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:54:34,719 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:54:34,720 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-bad-three-array-sum-alt.wvr.c [2024-11-17 07:54:34,727 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8d023c16/429e05a166404ab19726a097a6e91a24/FLAG40668f25c [2024-11-17 07:54:34,739 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f8d023c16/429e05a166404ab19726a097a6e91a24 [2024-11-17 07:54:34,741 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:54:34,742 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:54:34,743 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:54:34,743 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:54:34,748 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:54:34,748 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:54:34" (1/1) ... [2024-11-17 07:54:34,749 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21ab24df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:34, skipping insertion in model container [2024-11-17 07:54:34,749 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:54:34" (1/1) ... [2024-11-17 07:54:34,765 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:54:35,009 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:54:35,022 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:54:35,047 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:54:35,063 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:54:35,063 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:35 WrapperNode [2024-11-17 07:54:35,063 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:54:35,064 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:54:35,064 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:54:35,065 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:54:35,071 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:35" (1/1) ... [2024-11-17 07:54:35,080 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:35" (1/1) ... [2024-11-17 07:54:35,115 INFO L138 Inliner]: procedures = 25, calls = 31, calls flagged for inlining = 16, calls inlined = 28, statements flattened = 343 [2024-11-17 07:54:35,116 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:54:35,120 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:54:35,120 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:54:35,120 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:54:35,129 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:35" (1/1) ... [2024-11-17 07:54:35,129 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:35" (1/1) ... [2024-11-17 07:54:35,135 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:35" (1/1) ... [2024-11-17 07:54:35,161 INFO L175 MemorySlicer]: Split 11 memory accesses to 2 slices as follows [2, 9]. 82 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 4 writes are split as follows [0, 4]. [2024-11-17 07:54:35,161 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:35" (1/1) ... [2024-11-17 07:54:35,162 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:35" (1/1) ... [2024-11-17 07:54:35,171 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:35" (1/1) ... [2024-11-17 07:54:35,172 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:35" (1/1) ... [2024-11-17 07:54:35,173 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:35" (1/1) ... [2024-11-17 07:54:35,175 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:35" (1/1) ... [2024-11-17 07:54:35,181 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:54:35,182 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:54:35,184 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:54:35,185 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:54:35,185 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:35" (1/1) ... [2024-11-17 07:54:35,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:54:35,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:54:35,232 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 07:54:35,238 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 07:54:35,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:54:35,275 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-17 07:54:35,275 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-17 07:54:35,275 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-17 07:54:35,275 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-17 07:54:35,275 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-17 07:54:35,276 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-17 07:54:35,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:54:35,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 07:54:35,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 07:54:35,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 07:54:35,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-17 07:54:35,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:54:35,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:54:35,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 07:54:35,277 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 07:54:35,278 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 07:54:35,375 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:54:35,376 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:54:35,833 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:54:35,833 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:54:36,156 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:54:36,156 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:54:36,157 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:54:36 BoogieIcfgContainer [2024-11-17 07:54:36,157 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:54:36,160 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:54:36,160 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:54:36,163 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:54:36,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:54:34" (1/3) ... [2024-11-17 07:54:36,164 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7644540f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:54:36, skipping insertion in model container [2024-11-17 07:54:36,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:54:35" (2/3) ... [2024-11-17 07:54:36,164 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7644540f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:54:36, skipping insertion in model container [2024-11-17 07:54:36,164 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:54:36" (3/3) ... [2024-11-17 07:54:36,165 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-three-array-sum-alt.wvr.c [2024-11-17 07:54:36,178 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:54:36,178 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 42 error locations. [2024-11-17 07:54:36,178 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:54:36,283 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-17 07:54:36,311 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 161 transitions, 343 flow [2024-11-17 07:54:36,355 INFO L124 PetriNetUnfolderBase]: 22/158 cut-off events. [2024-11-17 07:54:36,355 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-17 07:54:36,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 171 conditions, 158 events. 22/158 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 529 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 111. Up to 2 conditions per place. [2024-11-17 07:54:36,359 INFO L82 GeneralOperation]: Start removeDead. Operand has 149 places, 161 transitions, 343 flow [2024-11-17 07:54:36,362 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 145 places, 157 transitions, 332 flow [2024-11-17 07:54:36,368 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:54:36,373 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;@8e68064, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:54:36,373 INFO L334 AbstractCegarLoop]: Starting to check reachability of 75 error locations. [2024-11-17 07:54:36,375 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:54:36,375 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events. [2024-11-17 07:54:36,375 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:54:36,375 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:54:36,376 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 07:54:36,376 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-17 07:54:36,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:54:36,383 INFO L85 PathProgramCache]: Analyzing trace with hash 31801557, now seen corresponding path program 1 times [2024-11-17 07:54:36,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:54:36,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502017763] [2024-11-17 07:54:36,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:36,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:54:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:36,574 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 07:54:36,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:54:36,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502017763] [2024-11-17 07:54:36,575 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502017763] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:54:36,575 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:54:36,575 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:54:36,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575676683] [2024-11-17 07:54:36,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:54:36,583 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:54:36,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:54:36,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:54:36,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:54:36,648 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 161 [2024-11-17 07:54:36,650 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 157 transitions, 332 flow. Second operand has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 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 07:54:36,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:54:36,652 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 161 [2024-11-17 07:54:36,652 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:54:38,040 INFO L124 PetriNetUnfolderBase]: 6099/13291 cut-off events. [2024-11-17 07:54:38,040 INFO L125 PetriNetUnfolderBase]: For 299/299 co-relation queries the response was YES. [2024-11-17 07:54:38,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21619 conditions, 13291 events. 6099/13291 cut-off events. For 299/299 co-relation queries the response was YES. Maximal size of possible extension queue 571. Compared 127081 event pairs, 4001 based on Foata normal form. 591/11811 useless extension candidates. Maximal degree in co-relation 20536. Up to 8033 conditions per place. [2024-11-17 07:54:38,115 INFO L140 encePairwiseOnDemand]: 139/161 looper letters, 61 selfloop transitions, 10 changer transitions 0/160 dead transitions. [2024-11-17 07:54:38,116 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 160 transitions, 480 flow [2024-11-17 07:54:38,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:54:38,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:54:38,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 454 transitions. [2024-11-17 07:54:38,127 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7049689440993789 [2024-11-17 07:54:38,128 INFO L175 Difference]: Start difference. First operand has 145 places, 157 transitions, 332 flow. Second operand 4 states and 454 transitions. [2024-11-17 07:54:38,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 160 transitions, 480 flow [2024-11-17 07:54:38,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 160 transitions, 468 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-17 07:54:38,139 INFO L231 Difference]: Finished difference. Result has 145 places, 160 transitions, 396 flow [2024-11-17 07:54:38,141 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=396, PETRI_PLACES=145, PETRI_TRANSITIONS=160} [2024-11-17 07:54:38,143 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 0 predicate places. [2024-11-17 07:54:38,143 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 160 transitions, 396 flow [2024-11-17 07:54:38,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 92.75) internal successors, (371), 4 states have internal predecessors, (371), 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 07:54:38,144 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:54:38,144 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-17 07:54:38,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:54:38,144 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-17 07:54:38,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:54:38,145 INFO L85 PathProgramCache]: Analyzing trace with hash 447370249, now seen corresponding path program 1 times [2024-11-17 07:54:38,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:54:38,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408005651] [2024-11-17 07:54:38,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:38,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:54:38,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:38,260 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:54:38,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:54:38,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408005651] [2024-11-17 07:54:38,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408005651] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:54:38,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262266676] [2024-11-17 07:54:38,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:38,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:54:38,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:54:38,263 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 07:54:38,267 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 07:54:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:38,326 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:54:38,329 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:54:38,366 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:54:38,367 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:54:38,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262266676] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:54:38,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:54:38,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-17 07:54:38,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814290995] [2024-11-17 07:54:38,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:54:38,368 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:54:38,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:54:38,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:54:38,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:54:38,393 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 161 [2024-11-17 07:54:38,394 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 160 transitions, 396 flow. Second operand has 6 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 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 07:54:38,394 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:54:38,394 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 161 [2024-11-17 07:54:38,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:54:39,473 INFO L124 PetriNetUnfolderBase]: 6099/13288 cut-off events. [2024-11-17 07:54:39,474 INFO L125 PetriNetUnfolderBase]: For 121/121 co-relation queries the response was YES. [2024-11-17 07:54:39,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21451 conditions, 13288 events. 6099/13288 cut-off events. For 121/121 co-relation queries the response was YES. Maximal size of possible extension queue 571. Compared 127105 event pairs, 4001 based on Foata normal form. 3/11220 useless extension candidates. Maximal degree in co-relation 21372. Up to 8018 conditions per place. [2024-11-17 07:54:39,535 INFO L140 encePairwiseOnDemand]: 148/161 looper letters, 51 selfloop transitions, 17 changer transitions 0/157 dead transitions. [2024-11-17 07:54:39,535 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 147 places, 157 transitions, 520 flow [2024-11-17 07:54:39,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:54:39,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:54:39,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 623 transitions. [2024-11-17 07:54:39,538 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.644927536231884 [2024-11-17 07:54:39,538 INFO L175 Difference]: Start difference. First operand has 145 places, 160 transitions, 396 flow. Second operand 6 states and 623 transitions. [2024-11-17 07:54:39,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 147 places, 157 transitions, 520 flow [2024-11-17 07:54:39,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 157 transitions, 520 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:54:39,541 INFO L231 Difference]: Finished difference. Result has 147 places, 157 transitions, 418 flow [2024-11-17 07:54:39,541 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=384, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=418, PETRI_PLACES=147, PETRI_TRANSITIONS=157} [2024-11-17 07:54:39,542 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 2 predicate places. [2024-11-17 07:54:39,542 INFO L471 AbstractCegarLoop]: Abstraction has has 147 places, 157 transitions, 418 flow [2024-11-17 07:54:39,543 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 92.83333333333333) internal successors, (557), 6 states have internal predecessors, (557), 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 07:54:39,543 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:54:39,543 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-17 07:54:39,558 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-17 07:54:39,743 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:54:39,744 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-17 07:54:39,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:54:39,745 INFO L85 PathProgramCache]: Analyzing trace with hash 983576737, now seen corresponding path program 1 times [2024-11-17 07:54:39,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:54:39,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34932551] [2024-11-17 07:54:39,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:39,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:54:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:39,856 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:54:39,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:54:39,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34932551] [2024-11-17 07:54:39,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34932551] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:54:39,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [479022958] [2024-11-17 07:54:39,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:39,858 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:54:39,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:54:39,859 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 07:54:39,867 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 07:54:39,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:39,933 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:54:39,934 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:54:39,959 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:54:39,960 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:54:39,998 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:54:39,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [479022958] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:54:39,999 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:54:39,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-17 07:54:40,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [726177575] [2024-11-17 07:54:40,000 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:54:40,000 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 07:54:40,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:54:40,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 07:54:40,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-17 07:54:40,074 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 161 [2024-11-17 07:54:40,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 157 transitions, 418 flow. Second operand has 12 states, 12 states have (on average 93.08333333333333) internal successors, (1117), 12 states have internal predecessors, (1117), 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 07:54:40,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:54:40,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 161 [2024-11-17 07:54:40,076 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:54:41,242 INFO L124 PetriNetUnfolderBase]: 6108/13342 cut-off events. [2024-11-17 07:54:41,242 INFO L125 PetriNetUnfolderBase]: For 273/273 co-relation queries the response was YES. [2024-11-17 07:54:41,270 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21610 conditions, 13342 events. 6108/13342 cut-off events. For 273/273 co-relation queries the response was YES. Maximal size of possible extension queue 571. Compared 127589 event pairs, 4001 based on Foata normal form. 9/11283 useless extension candidates. Maximal degree in co-relation 21374. Up to 8033 conditions per place. [2024-11-17 07:54:41,329 INFO L140 encePairwiseOnDemand]: 148/161 looper letters, 58 selfloop transitions, 37 changer transitions 0/184 dead transitions. [2024-11-17 07:54:41,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 184 transitions, 782 flow [2024-11-17 07:54:41,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 07:54:41,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-17 07:54:41,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1024 transitions. [2024-11-17 07:54:41,332 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6360248447204969 [2024-11-17 07:54:41,332 INFO L175 Difference]: Start difference. First operand has 147 places, 157 transitions, 418 flow. Second operand 10 states and 1024 transitions. [2024-11-17 07:54:41,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 184 transitions, 782 flow [2024-11-17 07:54:41,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 151 places, 184 transitions, 699 flow, removed 16 selfloop flow, removed 5 redundant places. [2024-11-17 07:54:41,337 INFO L231 Difference]: Finished difference. Result has 154 places, 184 transitions, 633 flow [2024-11-17 07:54:41,337 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=380, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=633, PETRI_PLACES=154, PETRI_TRANSITIONS=184} [2024-11-17 07:54:41,338 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 9 predicate places. [2024-11-17 07:54:41,338 INFO L471 AbstractCegarLoop]: Abstraction has has 154 places, 184 transitions, 633 flow [2024-11-17 07:54:41,339 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 93.08333333333333) internal successors, (1117), 12 states have internal predecessors, (1117), 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 07:54:41,339 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:54:41,339 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:54:41,353 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-17 07:54:41,543 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,SelfDestructingSolverStorable2 [2024-11-17 07:54:41,544 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-17 07:54:41,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:54:41,545 INFO L85 PathProgramCache]: Analyzing trace with hash 756166512, now seen corresponding path program 1 times [2024-11-17 07:54:41,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:54:41,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [282486835] [2024-11-17 07:54:41,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:41,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:54:41,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:41,765 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 07:54:41,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:54:41,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [282486835] [2024-11-17 07:54:41,766 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [282486835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:54:41,766 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:54:41,767 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:54:41,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182101143] [2024-11-17 07:54:41,767 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:54:41,767 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:54:41,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:54:41,768 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:54:41,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:54:41,783 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 161 [2024-11-17 07:54:41,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 154 places, 184 transitions, 633 flow. Second operand has 4 states, 4 states have (on average 94.25) internal successors, (377), 4 states have internal predecessors, (377), 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 07:54:41,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:54:41,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 161 [2024-11-17 07:54:41,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:54:43,070 INFO L124 PetriNetUnfolderBase]: 12182/22710 cut-off events. [2024-11-17 07:54:43,071 INFO L125 PetriNetUnfolderBase]: For 318/318 co-relation queries the response was YES. [2024-11-17 07:54:43,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39122 conditions, 22710 events. 12182/22710 cut-off events. For 318/318 co-relation queries the response was YES. Maximal size of possible extension queue 937. Compared 206524 event pairs, 3633 based on Foata normal form. 544/20124 useless extension candidates. Maximal degree in co-relation 39018. Up to 7416 conditions per place. [2024-11-17 07:54:43,319 INFO L140 encePairwiseOnDemand]: 153/161 looper letters, 152 selfloop transitions, 5 changer transitions 0/243 dead transitions. [2024-11-17 07:54:43,320 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 243 transitions, 1069 flow [2024-11-17 07:54:43,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:54:43,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:54:43,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 492 transitions. [2024-11-17 07:54:43,322 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7639751552795031 [2024-11-17 07:54:43,322 INFO L175 Difference]: Start difference. First operand has 154 places, 184 transitions, 633 flow. Second operand 4 states and 492 transitions. [2024-11-17 07:54:43,322 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 243 transitions, 1069 flow [2024-11-17 07:54:43,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 243 transitions, 1032 flow, removed 9 selfloop flow, removed 2 redundant places. [2024-11-17 07:54:43,326 INFO L231 Difference]: Finished difference. Result has 157 places, 186 transitions, 630 flow [2024-11-17 07:54:43,327 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=594, PETRI_DIFFERENCE_MINUEND_PLACES=151, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=630, PETRI_PLACES=157, PETRI_TRANSITIONS=186} [2024-11-17 07:54:43,327 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 12 predicate places. [2024-11-17 07:54:43,327 INFO L471 AbstractCegarLoop]: Abstraction has has 157 places, 186 transitions, 630 flow [2024-11-17 07:54:43,328 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.25) internal successors, (377), 4 states have internal predecessors, (377), 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 07:54:43,328 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:54:43,328 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:54:43,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 07:54:43,328 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-17 07:54:43,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:54:43,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1966326391, now seen corresponding path program 1 times [2024-11-17 07:54:43,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:54:43,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112177253] [2024-11-17 07:54:43,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:43,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:54:43,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:43,430 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 07:54:43,432 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:54:43,432 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112177253] [2024-11-17 07:54:43,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112177253] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:54:43,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:54:43,433 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:54:43,433 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043662341] [2024-11-17 07:54:43,433 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:54:43,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:54:43,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:54:43,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:54:43,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:54:43,446 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 161 [2024-11-17 07:54:43,447 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 186 transitions, 630 flow. Second operand has 5 states, 5 states have (on average 97.0) internal successors, (485), 5 states have internal predecessors, (485), 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 07:54:43,447 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:54:43,447 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 161 [2024-11-17 07:54:43,448 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:54:45,135 INFO L124 PetriNetUnfolderBase]: 9635/21380 cut-off events. [2024-11-17 07:54:45,137 INFO L125 PetriNetUnfolderBase]: For 3612/4000 co-relation queries the response was YES. [2024-11-17 07:54:45,243 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36761 conditions, 21380 events. 9635/21380 cut-off events. For 3612/4000 co-relation queries the response was YES. Maximal size of possible extension queue 744. Compared 213650 event pairs, 5900 based on Foata normal form. 389/18577 useless extension candidates. Maximal degree in co-relation 36593. Up to 10207 conditions per place. [2024-11-17 07:54:45,374 INFO L140 encePairwiseOnDemand]: 148/161 looper letters, 175 selfloop transitions, 24 changer transitions 0/288 dead transitions. [2024-11-17 07:54:45,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 162 places, 288 transitions, 1364 flow [2024-11-17 07:54:45,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:54:45,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:54:45,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 723 transitions. [2024-11-17 07:54:45,376 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7484472049689441 [2024-11-17 07:54:45,376 INFO L175 Difference]: Start difference. First operand has 157 places, 186 transitions, 630 flow. Second operand 6 states and 723 transitions. [2024-11-17 07:54:45,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 162 places, 288 transitions, 1364 flow [2024-11-17 07:54:45,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 162 places, 288 transitions, 1364 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:54:45,426 INFO L231 Difference]: Finished difference. Result has 165 places, 197 transitions, 764 flow [2024-11-17 07:54:45,427 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=630, PETRI_DIFFERENCE_MINUEND_PLACES=157, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=168, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=764, PETRI_PLACES=165, PETRI_TRANSITIONS=197} [2024-11-17 07:54:45,428 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 20 predicate places. [2024-11-17 07:54:45,428 INFO L471 AbstractCegarLoop]: Abstraction has has 165 places, 197 transitions, 764 flow [2024-11-17 07:54:45,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.0) internal successors, (485), 5 states have internal predecessors, (485), 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 07:54:45,429 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:54:45,429 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:54:45,429 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 07:54:45,430 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-17 07:54:45,430 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:54:45,430 INFO L85 PathProgramCache]: Analyzing trace with hash 1171476136, now seen corresponding path program 1 times [2024-11-17 07:54:45,430 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:54:45,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720981698] [2024-11-17 07:54:45,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:45,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:54:45,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:45,514 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 07:54:45,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:54:45,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720981698] [2024-11-17 07:54:45,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720981698] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:54:45,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:54:45,516 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:54:45,516 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2109665662] [2024-11-17 07:54:45,516 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:54:45,517 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:54:45,517 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:54:45,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:54:45,518 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:54:45,537 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 92 out of 161 [2024-11-17 07:54:45,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 165 places, 197 transitions, 764 flow. Second operand has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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 07:54:45,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:54:45,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 92 of 161 [2024-11-17 07:54:45,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:54:48,411 INFO L124 PetriNetUnfolderBase]: 20213/37285 cut-off events. [2024-11-17 07:54:48,412 INFO L125 PetriNetUnfolderBase]: For 11335/11853 co-relation queries the response was YES. [2024-11-17 07:54:48,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73255 conditions, 37285 events. 20213/37285 cut-off events. For 11335/11853 co-relation queries the response was YES. Maximal size of possible extension queue 1256. Compared 346006 event pairs, 6591 based on Foata normal form. 1168/34154 useless extension candidates. Maximal degree in co-relation 73079. Up to 12964 conditions per place. [2024-11-17 07:54:48,831 INFO L140 encePairwiseOnDemand]: 153/161 looper letters, 168 selfloop transitions, 5 changer transitions 0/262 dead transitions. [2024-11-17 07:54:48,835 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 167 places, 262 transitions, 1308 flow [2024-11-17 07:54:48,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:54:48,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:54:48,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 490 transitions. [2024-11-17 07:54:48,841 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7608695652173914 [2024-11-17 07:54:48,841 INFO L175 Difference]: Start difference. First operand has 165 places, 197 transitions, 764 flow. Second operand 4 states and 490 transitions. [2024-11-17 07:54:48,841 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 167 places, 262 transitions, 1308 flow [2024-11-17 07:54:48,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 262 transitions, 1308 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:54:49,001 INFO L231 Difference]: Finished difference. Result has 170 places, 199 transitions, 798 flow [2024-11-17 07:54:49,004 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=762, PETRI_DIFFERENCE_MINUEND_PLACES=164, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=798, PETRI_PLACES=170, PETRI_TRANSITIONS=199} [2024-11-17 07:54:49,005 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 25 predicate places. [2024-11-17 07:54:49,006 INFO L471 AbstractCegarLoop]: Abstraction has has 170 places, 199 transitions, 798 flow [2024-11-17 07:54:49,006 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 94.75) internal successors, (379), 4 states have internal predecessors, (379), 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 07:54:49,006 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:54:49,006 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:54:49,006 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-17 07:54:49,007 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread2Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-17 07:54:49,007 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:54:49,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1956022875, now seen corresponding path program 1 times [2024-11-17 07:54:49,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:54:49,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246714866] [2024-11-17 07:54:49,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:49,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:54:49,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:49,096 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 07:54:49,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:54:49,096 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246714866] [2024-11-17 07:54:49,096 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246714866] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:54:49,096 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:54:49,096 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:54:49,096 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177600613] [2024-11-17 07:54:49,096 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:54:49,097 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:54:49,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:54:49,097 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:54:49,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:54:49,111 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 161 [2024-11-17 07:54:49,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 199 transitions, 798 flow. Second operand has 5 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 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 07:54:49,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:54:49,113 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 161 [2024-11-17 07:54:49,113 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:54:51,087 INFO L124 PetriNetUnfolderBase]: 10315/22784 cut-off events. [2024-11-17 07:54:51,087 INFO L125 PetriNetUnfolderBase]: For 9354/10364 co-relation queries the response was YES. [2024-11-17 07:54:51,178 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43661 conditions, 22784 events. 10315/22784 cut-off events. For 9354/10364 co-relation queries the response was YES. Maximal size of possible extension queue 944. Compared 233328 event pairs, 6946 based on Foata normal form. 615/20164 useless extension candidates. Maximal degree in co-relation 43477. Up to 12914 conditions per place. [2024-11-17 07:54:51,432 INFO L140 encePairwiseOnDemand]: 148/161 looper letters, 162 selfloop transitions, 24 changer transitions 0/275 dead transitions. [2024-11-17 07:54:51,432 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 275 transitions, 1444 flow [2024-11-17 07:54:51,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:54:51,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:54:51,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 708 transitions. [2024-11-17 07:54:51,434 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7329192546583851 [2024-11-17 07:54:51,434 INFO L175 Difference]: Start difference. First operand has 170 places, 199 transitions, 798 flow. Second operand 6 states and 708 transitions. [2024-11-17 07:54:51,434 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 275 transitions, 1444 flow [2024-11-17 07:54:51,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 275 transitions, 1444 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:54:51,482 INFO L231 Difference]: Finished difference. Result has 177 places, 201 transitions, 867 flow [2024-11-17 07:54:51,482 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=798, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=867, PETRI_PLACES=177, PETRI_TRANSITIONS=201} [2024-11-17 07:54:51,483 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 32 predicate places. [2024-11-17 07:54:51,483 INFO L471 AbstractCegarLoop]: Abstraction has has 177 places, 201 transitions, 867 flow [2024-11-17 07:54:51,483 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.4) internal successors, (487), 5 states have internal predecessors, (487), 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 07:54:51,483 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:54:51,484 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:54:51,484 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 07:54:51,484 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err13ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-17 07:54:51,484 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:54:51,484 INFO L85 PathProgramCache]: Analyzing trace with hash -897284273, now seen corresponding path program 1 times [2024-11-17 07:54:51,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:54:51,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506170979] [2024-11-17 07:54:51,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:51,485 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:54:51,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:51,522 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 07:54:51,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:54:51,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506170979] [2024-11-17 07:54:51,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506170979] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:54:51,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:54:51,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:54:51,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637934026] [2024-11-17 07:54:51,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:54:51,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:54:51,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:54:51,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:54:51,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:54:51,555 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 161 [2024-11-17 07:54:51,556 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 201 transitions, 867 flow. Second operand has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 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 07:54:51,556 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:54:51,556 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 161 [2024-11-17 07:54:51,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:54:54,929 INFO L124 PetriNetUnfolderBase]: 22965/42374 cut-off events. [2024-11-17 07:54:54,930 INFO L125 PetriNetUnfolderBase]: For 24784/26770 co-relation queries the response was YES. [2024-11-17 07:54:55,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91799 conditions, 42374 events. 22965/42374 cut-off events. For 24784/26770 co-relation queries the response was YES. Maximal size of possible extension queue 1717. Compared 406595 event pairs, 7028 based on Foata normal form. 2129/39577 useless extension candidates. Maximal degree in co-relation 91613. Up to 13250 conditions per place. [2024-11-17 07:54:55,321 INFO L140 encePairwiseOnDemand]: 146/161 looper letters, 172 selfloop transitions, 10 changer transitions 0/265 dead transitions. [2024-11-17 07:54:55,321 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 265 transitions, 1491 flow [2024-11-17 07:54:55,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:54:55,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:54:55,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 466 transitions. [2024-11-17 07:54:55,323 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7236024844720497 [2024-11-17 07:54:55,323 INFO L175 Difference]: Start difference. First operand has 177 places, 201 transitions, 867 flow. Second operand 4 states and 466 transitions. [2024-11-17 07:54:55,323 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 265 transitions, 1491 flow [2024-11-17 07:54:55,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 265 transitions, 1454 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:54:55,501 INFO L231 Difference]: Finished difference. Result has 178 places, 205 transitions, 896 flow [2024-11-17 07:54:55,501 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=826, PETRI_DIFFERENCE_MINUEND_PLACES=172, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=896, PETRI_PLACES=178, PETRI_TRANSITIONS=205} [2024-11-17 07:54:55,502 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 33 predicate places. [2024-11-17 07:54:55,502 INFO L471 AbstractCegarLoop]: Abstraction has has 178 places, 205 transitions, 896 flow [2024-11-17 07:54:55,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 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 07:54:55,502 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:54:55,502 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1] [2024-11-17 07:54:55,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 07:54:55,502 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-17 07:54:55,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:54:55,503 INFO L85 PathProgramCache]: Analyzing trace with hash 123012741, now seen corresponding path program 2 times [2024-11-17 07:54:55,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:54:55,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692318321] [2024-11-17 07:54:55,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:55,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:54:55,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:55,614 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:54:55,615 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:54:55,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692318321] [2024-11-17 07:54:55,615 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692318321] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:54:55,615 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [684252729] [2024-11-17 07:54:55,615 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:54:55,616 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:54:55,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:54:55,617 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 07:54:55,618 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 07:54:55,676 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-17 07:54:55,676 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:54:55,677 INFO L255 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 07:54:55,678 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:54:55,714 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-17 07:54:55,715 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:54:55,746 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-17 07:54:55,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [684252729] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:54:55,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:54:55,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-17 07:54:55,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141760045] [2024-11-17 07:54:55,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:54:55,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-17 07:54:55,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:54:55,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-17 07:54:55,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-17 07:54:55,796 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 161 [2024-11-17 07:54:55,797 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 205 transitions, 896 flow. Second operand has 14 states, 14 states have (on average 90.14285714285714) internal successors, (1262), 14 states have internal predecessors, (1262), 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 07:54:55,798 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:54:55,798 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 161 [2024-11-17 07:54:55,798 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:54:59,090 INFO L124 PetriNetUnfolderBase]: 14760/31849 cut-off events. [2024-11-17 07:54:59,090 INFO L125 PetriNetUnfolderBase]: For 22059/23876 co-relation queries the response was YES. [2024-11-17 07:54:59,255 INFO L83 FinitePrefix]: Finished finitePrefix Result has 69582 conditions, 31849 events. 14760/31849 cut-off events. For 22059/23876 co-relation queries the response was YES. Maximal size of possible extension queue 1321. Compared 335067 event pairs, 10507 based on Foata normal form. 941/29263 useless extension candidates. Maximal degree in co-relation 69300. Up to 19325 conditions per place. [2024-11-17 07:54:59,377 INFO L140 encePairwiseOnDemand]: 146/161 looper letters, 73 selfloop transitions, 69 changer transitions 0/228 dead transitions. [2024-11-17 07:54:59,377 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 200 places, 228 transitions, 1302 flow [2024-11-17 07:54:59,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-17 07:54:59,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-17 07:54:59,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 2261 transitions. [2024-11-17 07:54:59,381 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5851449275362319 [2024-11-17 07:54:59,381 INFO L175 Difference]: Start difference. First operand has 178 places, 205 transitions, 896 flow. Second operand 24 states and 2261 transitions. [2024-11-17 07:54:59,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 200 places, 228 transitions, 1302 flow [2024-11-17 07:54:59,576 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 228 transitions, 1302 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:54:59,578 INFO L231 Difference]: Finished difference. Result has 203 places, 224 transitions, 1176 flow [2024-11-17 07:54:59,578 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=886, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1176, PETRI_PLACES=203, PETRI_TRANSITIONS=224} [2024-11-17 07:54:59,579 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 58 predicate places. [2024-11-17 07:54:59,579 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 224 transitions, 1176 flow [2024-11-17 07:54:59,580 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 90.14285714285714) internal successors, (1262), 14 states have internal predecessors, (1262), 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 07:54:59,580 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:54:59,580 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:54:59,596 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 07:54:59,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:54:59,785 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread3Err12ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-17 07:54:59,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:54:59,786 INFO L85 PathProgramCache]: Analyzing trace with hash -2046007632, now seen corresponding path program 1 times [2024-11-17 07:54:59,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:54:59,786 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [488432258] [2024-11-17 07:54:59,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:54:59,786 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:54:59,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:54:59,875 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 07:54:59,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:54:59,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [488432258] [2024-11-17 07:54:59,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [488432258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:54:59,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:54:59,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:54:59,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889635762] [2024-11-17 07:54:59,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:54:59,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:54:59,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:54:59,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:54:59,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:54:59,895 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 161 [2024-11-17 07:54:59,896 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 224 transitions, 1176 flow. Second operand has 5 states, 5 states have (on average 97.8) internal successors, (489), 5 states have internal predecessors, (489), 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 07:54:59,896 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:54:59,896 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 161 [2024-11-17 07:54:59,897 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:55:02,782 INFO L124 PetriNetUnfolderBase]: 14026/30750 cut-off events. [2024-11-17 07:55:02,782 INFO L125 PetriNetUnfolderBase]: For 20676/22367 co-relation queries the response was YES. [2024-11-17 07:55:02,916 INFO L83 FinitePrefix]: Finished finitePrefix Result has 66497 conditions, 30750 events. 14026/30750 cut-off events. For 20676/22367 co-relation queries the response was YES. Maximal size of possible extension queue 1358. Compared 333269 event pairs, 9921 based on Foata normal form. 896/28038 useless extension candidates. Maximal degree in co-relation 66365. Up to 18079 conditions per place. [2024-11-17 07:55:03,021 INFO L140 encePairwiseOnDemand]: 148/161 looper letters, 169 selfloop transitions, 27 changer transitions 0/284 dead transitions. [2024-11-17 07:55:03,021 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 284 transitions, 1940 flow [2024-11-17 07:55:03,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:55:03,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:55:03,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 683 transitions. [2024-11-17 07:55:03,023 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7070393374741201 [2024-11-17 07:55:03,023 INFO L175 Difference]: Start difference. First operand has 203 places, 224 transitions, 1176 flow. Second operand 6 states and 683 transitions. [2024-11-17 07:55:03,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 284 transitions, 1940 flow [2024-11-17 07:55:03,197 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 284 transitions, 1727 flow, removed 42 selfloop flow, removed 9 redundant places. [2024-11-17 07:55:03,199 INFO L231 Difference]: Finished difference. Result has 201 places, 226 transitions, 1102 flow [2024-11-17 07:55:03,200 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=1026, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1102, PETRI_PLACES=201, PETRI_TRANSITIONS=226} [2024-11-17 07:55:03,200 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 56 predicate places. [2024-11-17 07:55:03,200 INFO L471 AbstractCegarLoop]: Abstraction has has 201 places, 226 transitions, 1102 flow [2024-11-17 07:55:03,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 97.8) internal successors, (489), 5 states have internal predecessors, (489), 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 07:55:03,201 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:55:03,201 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 5, 1, 1, 1, 1, 1] [2024-11-17 07:55:03,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-17 07:55:03,201 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-17 07:55:03,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:55:03,201 INFO L85 PathProgramCache]: Analyzing trace with hash -1064552438, now seen corresponding path program 1 times [2024-11-17 07:55:03,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:55:03,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881997306] [2024-11-17 07:55:03,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:55:03,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:55:03,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:55:03,258 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-17 07:55:03,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:55:03,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881997306] [2024-11-17 07:55:03,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881997306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:55:03,259 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:55:03,259 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:55:03,259 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27921647] [2024-11-17 07:55:03,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:55:03,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:55:03,260 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:55:03,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:55:03,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:55:03,273 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 95 out of 161 [2024-11-17 07:55:03,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 226 transitions, 1102 flow. Second operand has 5 states, 5 states have (on average 96.2) internal successors, (481), 5 states have internal predecessors, (481), 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 07:55:03,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:55:03,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 95 of 161 [2024-11-17 07:55:03,274 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:55:06,213 INFO L124 PetriNetUnfolderBase]: 14014/30674 cut-off events. [2024-11-17 07:55:06,213 INFO L125 PetriNetUnfolderBase]: For 21487/23178 co-relation queries the response was YES. [2024-11-17 07:55:06,492 INFO L83 FinitePrefix]: Finished finitePrefix Result has 67016 conditions, 30674 events. 14014/30674 cut-off events. For 21487/23178 co-relation queries the response was YES. Maximal size of possible extension queue 1358. Compared 332626 event pairs, 9960 based on Foata normal form. 876/27936 useless extension candidates. Maximal degree in co-relation 66921. Up to 18079 conditions per place. [2024-11-17 07:55:06,803 INFO L140 encePairwiseOnDemand]: 149/161 looper letters, 127 selfloop transitions, 18 changer transitions 0/233 dead transitions. [2024-11-17 07:55:06,803 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 233 transitions, 1330 flow [2024-11-17 07:55:06,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:55:06,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:55:06,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 570 transitions. [2024-11-17 07:55:06,805 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7080745341614907 [2024-11-17 07:55:06,805 INFO L175 Difference]: Start difference. First operand has 201 places, 226 transitions, 1102 flow. Second operand 5 states and 570 transitions. [2024-11-17 07:55:06,805 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 233 transitions, 1330 flow [2024-11-17 07:55:06,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 233 transitions, 1281 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 07:55:06,972 INFO L231 Difference]: Finished difference. Result has 202 places, 219 transitions, 1001 flow [2024-11-17 07:55:06,973 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=161, PETRI_DIFFERENCE_MINUEND_FLOW=957, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1001, PETRI_PLACES=202, PETRI_TRANSITIONS=219} [2024-11-17 07:55:06,973 INFO L277 CegarLoopForPetriNet]: 145 programPoint places, 57 predicate places. [2024-11-17 07:55:06,973 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 219 transitions, 1001 flow [2024-11-17 07:55:06,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 96.2) internal successors, (481), 5 states have internal predecessors, (481), 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 07:55:06,974 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:55:06,974 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:55:06,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-17 07:55:06,974 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err7ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err6ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (and 72 more)] === [2024-11-17 07:55:06,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:55:06,974 INFO L85 PathProgramCache]: Analyzing trace with hash 1902699405, now seen corresponding path program 1 times [2024-11-17 07:55:06,974 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:55:06,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652527977] [2024-11-17 07:55:06,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:55:06,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:55:06,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:55:07,463 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:55:07,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:55:07,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652527977] [2024-11-17 07:55:07,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652527977] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:55:07,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500372404] [2024-11-17 07:55:07,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:55:07,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:55:07,464 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:55:07,468 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 07:55:07,471 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 07:55:07,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:55:07,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-17 07:55:07,569 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:55:07,591 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2024-11-17 07:55:07,622 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-17 07:55:07,694 INFO L349 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2024-11-17 07:55:07,694 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2024-11-17 07:55:07,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-17 07:55:07,813 INFO L349 Elim1Store]: treesize reduction 8, result has 52.9 percent of original size [2024-11-17 07:55:07,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 18 [2024-11-17 07:55:07,837 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-17 07:55:07,881 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-17 07:55:07,885 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:55:07,886 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:55:07,948 WARN L851 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_134 (Array Int Int))) (< 0 (+ (select (select (store |c_#memory_int#1| |c_ULTIMATE.start_create_fresh_int_array_~arr~0#1.base| v_ArrVal_134) c_~A~0.base) c_~A~0.offset) 9223372039002259456))) is different from false [2024-11-17 07:55:08,115 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-17 07:55:08,115 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 27 treesize of output 28 [2024-11-17 07:55:08,127 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-17 07:55:08,127 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 73 treesize of output 69 [2024-11-17 07:55:08,137 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2024-11-17 07:55:08,144 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 50 [2024-11-17 07:55:08,337 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 2 not checked. [2024-11-17 07:55:08,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500372404] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:55:08,337 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:55:08,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 24 [2024-11-17 07:55:08,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142481539] [2024-11-17 07:55:08,338 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:55:08,338 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-17 07:55:08,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:55:08,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-17 07:55:08,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=508, Unknown=2, NotChecked=46, Total=650 [2024-11-17 07:55:08,408 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 161 [2024-11-17 07:55:08,410 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 219 transitions, 1001 flow. Second operand has 26 states, 26 states have (on average 87.0) internal successors, (2262), 26 states have internal predecessors, (2262), 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 07:55:08,410 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:55:08,410 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 161 [2024-11-17 07:55:08,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:55:19,684 INFO L124 PetriNetUnfolderBase]: 61529/99579 cut-off events. [2024-11-17 07:55:19,685 INFO L125 PetriNetUnfolderBase]: For 75440/82763 co-relation queries the response was YES. [2024-11-17 07:55:20,545 INFO L83 FinitePrefix]: Finished finitePrefix Result has 243737 conditions, 99579 events. 61529/99579 cut-off events. For 75440/82763 co-relation queries the response was YES. Maximal size of possible extension queue 3051. Compared 906325 event pairs, 13364 based on Foata normal form. 3927/95385 useless extension candidates. Maximal degree in co-relation 243642. Up to 28504 conditions per place.