./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-more-vector-add.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-more-vector-add.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 63e73d2abe89b782ca9e5c579baa72b5461ffc3c60c322f6f03d18cdd5548702 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:56:40,839 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:56:40,908 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:56:40,911 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:56:40,912 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:56:40,929 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:56:40,929 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:56:40,930 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:56:40,930 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:56:40,931 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:56:40,931 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:56:40,932 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:56:40,932 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:56:40,933 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:56:40,933 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:56:40,933 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:56:40,934 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:56:40,934 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:56:40,934 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:56:40,935 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:56:40,935 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:56:40,937 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:56:40,937 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:56:40,937 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:56:40,938 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:56:40,938 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:56:40,938 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:56:40,938 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:56:40,938 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:56:40,939 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:56:40,945 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:56:40,946 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:56:40,946 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:56:40,946 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:56:40,946 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:56:40,946 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:56:40,946 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:56:40,946 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:56:40,946 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:56:40,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:56:40,947 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:56:40,949 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:56:40,949 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:56:40,949 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:56:40,949 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 63e73d2abe89b782ca9e5c579baa72b5461ffc3c60c322f6f03d18cdd5548702 [2024-11-17 07:56:41,174 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:56:41,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:56:41,201 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:56:41,202 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:56:41,202 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:56:41,203 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2024-11-17 07:56:42,498 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:56:42,662 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:56:42,662 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-vector-add.wvr.c [2024-11-17 07:56:42,670 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15d26a8ae/c24f55a0bfd345ef8189444792ead3a4/FLAG5a97b6991 [2024-11-17 07:56:43,064 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/15d26a8ae/c24f55a0bfd345ef8189444792ead3a4 [2024-11-17 07:56:43,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:56:43,067 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:56:43,068 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:56:43,068 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:56:43,072 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:56:43,072 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:56:43" (1/1) ... [2024-11-17 07:56:43,073 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@56fe39ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:43, skipping insertion in model container [2024-11-17 07:56:43,073 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:56:43" (1/1) ... [2024-11-17 07:56:43,089 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:56:43,243 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:56:43,250 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:56:43,279 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:56:43,295 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:56:43,296 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:43 WrapperNode [2024-11-17 07:56:43,296 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:56:43,297 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:56:43,297 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:56:43,297 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:56:43,302 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:43" (1/1) ... [2024-11-17 07:56:43,313 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:43" (1/1) ... [2024-11-17 07:56:43,337 INFO L138 Inliner]: procedures = 24, calls = 32, calls flagged for inlining = 12, calls inlined = 18, statements flattened = 191 [2024-11-17 07:56:43,338 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:56:43,338 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:56:43,338 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:56:43,338 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:56:43,349 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:43" (1/1) ... [2024-11-17 07:56:43,349 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:43" (1/1) ... [2024-11-17 07:56:43,352 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:43" (1/1) ... [2024-11-17 07:56:43,372 INFO L175 MemorySlicer]: Split 17 memory accesses to 2 slices as follows [2, 15]. 88 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 7 writes are split as follows [0, 7]. [2024-11-17 07:56:43,372 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:43" (1/1) ... [2024-11-17 07:56:43,373 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:43" (1/1) ... [2024-11-17 07:56:43,379 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:43" (1/1) ... [2024-11-17 07:56:43,380 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:43" (1/1) ... [2024-11-17 07:56:43,381 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:43" (1/1) ... [2024-11-17 07:56:43,382 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:43" (1/1) ... [2024-11-17 07:56:43,385 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:56:43,385 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:56:43,385 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:56:43,386 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:56:43,386 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:43" (1/1) ... [2024-11-17 07:56:43,394 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:56:43,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:56:43,417 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 07:56:43,419 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 07:56:43,456 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:56:43,456 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-17 07:56:43,456 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-17 07:56:43,456 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-17 07:56:43,456 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-17 07:56:43,456 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-17 07:56:43,457 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-17 07:56:43,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:56:43,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-17 07:56:43,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-17 07:56:43,457 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-17 07:56:43,457 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-17 07:56:43,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:56:43,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:56:43,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-17 07:56:43,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-17 07:56:43,459 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 07:56:43,571 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:56:43,576 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:56:43,908 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:56:43,909 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:56:44,185 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:56:44,186 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:56:44,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:56:44 BoogieIcfgContainer [2024-11-17 07:56:44,187 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:56:44,189 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:56:44,189 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:56:44,192 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:56:44,192 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:56:43" (1/3) ... [2024-11-17 07:56:44,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0513b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:56:44, skipping insertion in model container [2024-11-17 07:56:44,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:56:43" (2/3) ... [2024-11-17 07:56:44,193 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a0513b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:56:44, skipping insertion in model container [2024-11-17 07:56:44,193 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:56:44" (3/3) ... [2024-11-17 07:56:44,194 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-vector-add.wvr.c [2024-11-17 07:56:44,214 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:56:44,214 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 14 error locations. [2024-11-17 07:56:44,215 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:56:44,266 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-17 07:56:44,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 76 places, 80 transitions, 181 flow [2024-11-17 07:56:44,328 INFO L124 PetriNetUnfolderBase]: 14/77 cut-off events. [2024-11-17 07:56:44,328 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-17 07:56:44,331 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90 conditions, 77 events. 14/77 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 166 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 65. Up to 2 conditions per place. [2024-11-17 07:56:44,331 INFO L82 GeneralOperation]: Start removeDead. Operand has 76 places, 80 transitions, 181 flow [2024-11-17 07:56:44,334 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 71 places, 75 transitions, 165 flow [2024-11-17 07:56:44,343 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:56:44,352 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;@6ab9fae5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:56:44,352 INFO L334 AbstractCegarLoop]: Starting to check reachability of 23 error locations. [2024-11-17 07:56:44,355 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:56:44,356 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events. [2024-11-17 07:56:44,356 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:56:44,356 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:44,357 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-17 07:56:44,357 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:56:44,361 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:44,362 INFO L85 PathProgramCache]: Analyzing trace with hash 20940799, now seen corresponding path program 1 times [2024-11-17 07:56:44,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:44,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29446514] [2024-11-17 07:56:44,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:44,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:44,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:44,594 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 07:56:44,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:44,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29446514] [2024-11-17 07:56:44,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29446514] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:56:44,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:56:44,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:56:44,597 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886568693] [2024-11-17 07:56:44,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:56:44,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:56:44,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:44,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:56:44,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:56:44,691 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 80 [2024-11-17 07:56:44,694 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 75 transitions, 165 flow. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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 07:56:44,694 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:44,695 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 80 [2024-11-17 07:56:44,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:44,962 INFO L124 PetriNetUnfolderBase]: 433/831 cut-off events. [2024-11-17 07:56:44,963 INFO L125 PetriNetUnfolderBase]: For 44/44 co-relation queries the response was YES. [2024-11-17 07:56:44,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1532 conditions, 831 events. 433/831 cut-off events. For 44/44 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4469 event pairs, 306 based on Foata normal form. 131/897 useless extension candidates. Maximal degree in co-relation 1345. Up to 619 conditions per place. [2024-11-17 07:56:44,973 INFO L140 encePairwiseOnDemand]: 59/80 looper letters, 27 selfloop transitions, 10 changer transitions 0/64 dead transitions. [2024-11-17 07:56:44,974 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 64 transitions, 217 flow [2024-11-17 07:56:44,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:56:44,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:56:44,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 168 transitions. [2024-11-17 07:56:44,985 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.525 [2024-11-17 07:56:44,987 INFO L175 Difference]: Start difference. First operand has 71 places, 75 transitions, 165 flow. Second operand 4 states and 168 transitions. [2024-11-17 07:56:44,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 64 transitions, 217 flow [2024-11-17 07:56:44,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 64 transitions, 208 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-17 07:56:44,994 INFO L231 Difference]: Finished difference. Result has 65 places, 64 transitions, 154 flow [2024-11-17 07:56:44,996 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=154, PETRI_PLACES=65, PETRI_TRANSITIONS=64} [2024-11-17 07:56:44,998 INFO L277 CegarLoopForPetriNet]: 71 programPoint places, -6 predicate places. [2024-11-17 07:56:44,999 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 64 transitions, 154 flow [2024-11-17 07:56:44,999 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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 07:56:44,999 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:44,999 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-17 07:56:45,000 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:56:45,000 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:56:45,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:45,001 INFO L85 PathProgramCache]: Analyzing trace with hash 649165355, now seen corresponding path program 1 times [2024-11-17 07:56:45,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:45,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019739695] [2024-11-17 07:56:45,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:45,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:45,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:45,097 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 07:56:45,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:45,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019739695] [2024-11-17 07:56:45,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019739695] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:56:45,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:56:45,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-17 07:56:45,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722792605] [2024-11-17 07:56:45,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:56:45,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:56:45,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:45,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:56:45,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:56:45,152 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 80 [2024-11-17 07:56:45,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 64 transitions, 154 flow. Second operand has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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 07:56:45,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:45,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 80 [2024-11-17 07:56:45,153 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:45,358 INFO L124 PetriNetUnfolderBase]: 437/855 cut-off events. [2024-11-17 07:56:45,358 INFO L125 PetriNetUnfolderBase]: For 30/30 co-relation queries the response was YES. [2024-11-17 07:56:45,360 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1560 conditions, 855 events. 437/855 cut-off events. For 30/30 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4567 event pairs, 306 based on Foata normal form. 4/798 useless extension candidates. Maximal degree in co-relation 1456. Up to 636 conditions per place. [2024-11-17 07:56:45,363 INFO L140 encePairwiseOnDemand]: 63/80 looper letters, 36 selfloop transitions, 13 changer transitions 0/76 dead transitions. [2024-11-17 07:56:45,363 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 76 transitions, 294 flow [2024-11-17 07:56:45,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:56:45,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:56:45,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 173 transitions. [2024-11-17 07:56:45,366 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.540625 [2024-11-17 07:56:45,366 INFO L175 Difference]: Start difference. First operand has 65 places, 64 transitions, 154 flow. Second operand 4 states and 173 transitions. [2024-11-17 07:56:45,366 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 76 transitions, 294 flow [2024-11-17 07:56:45,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 76 transitions, 256 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:56:45,368 INFO L231 Difference]: Finished difference. Result has 68 places, 76 transitions, 242 flow [2024-11-17 07:56:45,369 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=242, PETRI_PLACES=68, PETRI_TRANSITIONS=76} [2024-11-17 07:56:45,371 INFO L277 CegarLoopForPetriNet]: 71 programPoint places, -3 predicate places. [2024-11-17 07:56:45,371 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 76 transitions, 242 flow [2024-11-17 07:56:45,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.75) internal successors, (123), 4 states have internal predecessors, (123), 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 07:56:45,371 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:45,371 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-17 07:56:45,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 07:56:45,372 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:56:45,372 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:45,372 INFO L85 PathProgramCache]: Analyzing trace with hash 553083053, now seen corresponding path program 1 times [2024-11-17 07:56:45,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:45,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294644870] [2024-11-17 07:56:45,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:45,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:45,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:45,460 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 07:56:45,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:45,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294644870] [2024-11-17 07:56:45,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [294644870] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:56:45,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106365038] [2024-11-17 07:56:45,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:45,462 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:45,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:56:45,465 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 07:56:45,468 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 07:56:45,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:45,546 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:56:45,551 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:56:45,591 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 07:56:45,592 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:56:45,633 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 07:56:45,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106365038] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:56:45,633 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:56:45,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-17 07:56:45,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110048569] [2024-11-17 07:56:45,634 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:56:45,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-17 07:56:45,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:45,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-17 07:56:45,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-11-17 07:56:45,712 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 80 [2024-11-17 07:56:45,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 76 transitions, 242 flow. Second operand has 10 states, 10 states have (on average 31.0) internal successors, (310), 10 states have internal predecessors, (310), 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 07:56:45,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:45,714 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 80 [2024-11-17 07:56:45,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:45,978 INFO L124 PetriNetUnfolderBase]: 449/927 cut-off events. [2024-11-17 07:56:45,979 INFO L125 PetriNetUnfolderBase]: For 114/114 co-relation queries the response was YES. [2024-11-17 07:56:45,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1738 conditions, 927 events. 449/927 cut-off events. For 114/114 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 5152 event pairs, 306 based on Foata normal form. 0/862 useless extension candidates. Maximal degree in co-relation 1481. Up to 639 conditions per place. [2024-11-17 07:56:45,984 INFO L140 encePairwiseOnDemand]: 63/80 looper letters, 36 selfloop transitions, 49 changer transitions 0/112 dead transitions. [2024-11-17 07:56:45,985 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 112 transitions, 574 flow [2024-11-17 07:56:45,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 07:56:45,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-17 07:56:45,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 397 transitions. [2024-11-17 07:56:45,988 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.49625 [2024-11-17 07:56:45,988 INFO L175 Difference]: Start difference. First operand has 68 places, 76 transitions, 242 flow. Second operand 10 states and 397 transitions. [2024-11-17 07:56:45,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 112 transitions, 574 flow [2024-11-17 07:56:45,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 112 transitions, 574 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:56:45,992 INFO L231 Difference]: Finished difference. Result has 80 places, 112 transitions, 568 flow [2024-11-17 07:56:45,993 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=568, PETRI_PLACES=80, PETRI_TRANSITIONS=112} [2024-11-17 07:56:45,994 INFO L277 CegarLoopForPetriNet]: 71 programPoint places, 9 predicate places. [2024-11-17 07:56:45,994 INFO L471 AbstractCegarLoop]: Abstraction has has 80 places, 112 transitions, 568 flow [2024-11-17 07:56:45,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 31.0) internal successors, (310), 10 states have internal predecessors, (310), 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 07:56:45,994 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:45,994 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 07:56:46,009 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-17 07:56:46,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:46,197 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:56:46,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:46,197 INFO L85 PathProgramCache]: Analyzing trace with hash 1326501612, now seen corresponding path program 1 times [2024-11-17 07:56:46,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:46,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578568620] [2024-11-17 07:56:46,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:46,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:46,291 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 07:56:46,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:46,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578568620] [2024-11-17 07:56:46,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578568620] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:56:46,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:56:46,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:56:46,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414576574] [2024-11-17 07:56:46,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:56:46,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:56:46,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:46,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:56:46,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:56:46,302 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 80 [2024-11-17 07:56:46,302 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 112 transitions, 568 flow. Second operand has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:46,302 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:46,303 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 80 [2024-11-17 07:56:46,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:46,501 INFO L124 PetriNetUnfolderBase]: 883/1636 cut-off events. [2024-11-17 07:56:46,501 INFO L125 PetriNetUnfolderBase]: For 301/301 co-relation queries the response was YES. [2024-11-17 07:56:46,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3167 conditions, 1636 events. 883/1636 cut-off events. For 301/301 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 9371 event pairs, 276 based on Foata normal form. 42/1572 useless extension candidates. Maximal degree in co-relation 3035. Up to 1001 conditions per place. [2024-11-17 07:56:46,510 INFO L140 encePairwiseOnDemand]: 74/80 looper letters, 108 selfloop transitions, 4 changer transitions 0/141 dead transitions. [2024-11-17 07:56:46,510 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 141 transitions, 856 flow [2024-11-17 07:56:46,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:56:46,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:56:46,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 210 transitions. [2024-11-17 07:56:46,512 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65625 [2024-11-17 07:56:46,512 INFO L175 Difference]: Start difference. First operand has 80 places, 112 transitions, 568 flow. Second operand 4 states and 210 transitions. [2024-11-17 07:56:46,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 141 transitions, 856 flow [2024-11-17 07:56:46,515 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 141 transitions, 730 flow, removed 32 selfloop flow, removed 4 redundant places. [2024-11-17 07:56:46,517 INFO L231 Difference]: Finished difference. Result has 81 places, 115 transitions, 471 flow [2024-11-17 07:56:46,517 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=442, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=471, PETRI_PLACES=81, PETRI_TRANSITIONS=115} [2024-11-17 07:56:46,518 INFO L277 CegarLoopForPetriNet]: 71 programPoint places, 10 predicate places. [2024-11-17 07:56:46,518 INFO L471 AbstractCegarLoop]: Abstraction has has 81 places, 115 transitions, 471 flow [2024-11-17 07:56:46,518 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.25) internal successors, (153), 4 states have internal predecessors, (153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:46,518 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:46,518 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 07:56:46,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-17 07:56:46,518 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:56:46,518 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:46,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1513922068, now seen corresponding path program 1 times [2024-11-17 07:56:46,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:46,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967928737] [2024-11-17 07:56:46,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:46,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:46,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:46,586 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 07:56:46,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:46,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967928737] [2024-11-17 07:56:46,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967928737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:56:46,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:56:46,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:56:46,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766452034] [2024-11-17 07:56:46,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:56:46,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:56:46,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:46,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:56:46,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:56:46,594 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 80 [2024-11-17 07:56:46,594 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 115 transitions, 471 flow. Second operand has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:46,595 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:46,595 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 80 [2024-11-17 07:56:46,595 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:46,844 INFO L124 PetriNetUnfolderBase]: 1399/2550 cut-off events. [2024-11-17 07:56:46,844 INFO L125 PetriNetUnfolderBase]: For 1061/1220 co-relation queries the response was YES. [2024-11-17 07:56:46,847 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5563 conditions, 2550 events. 1399/2550 cut-off events. For 1061/1220 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 15768 event pairs, 724 based on Foata normal form. 64/2440 useless extension candidates. Maximal degree in co-relation 5446. Up to 1517 conditions per place. [2024-11-17 07:56:46,857 INFO L140 encePairwiseOnDemand]: 74/80 looper letters, 115 selfloop transitions, 4 changer transitions 0/148 dead transitions. [2024-11-17 07:56:46,857 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 84 places, 148 transitions, 819 flow [2024-11-17 07:56:46,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:56:46,858 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:56:46,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 208 transitions. [2024-11-17 07:56:46,858 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.65 [2024-11-17 07:56:46,858 INFO L175 Difference]: Start difference. First operand has 81 places, 115 transitions, 471 flow. Second operand 4 states and 208 transitions. [2024-11-17 07:56:46,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 84 places, 148 transitions, 819 flow [2024-11-17 07:56:46,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 148 transitions, 810 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:56:46,862 INFO L231 Difference]: Finished difference. Result has 85 places, 118 transitions, 497 flow [2024-11-17 07:56:46,862 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=468, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=497, PETRI_PLACES=85, PETRI_TRANSITIONS=118} [2024-11-17 07:56:46,863 INFO L277 CegarLoopForPetriNet]: 71 programPoint places, 14 predicate places. [2024-11-17 07:56:46,863 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 118 transitions, 497 flow [2024-11-17 07:56:46,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 38.75) internal successors, (155), 4 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-17 07:56:46,863 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:46,863 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1] [2024-11-17 07:56:46,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 07:56:46,863 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:56:46,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:46,864 INFO L85 PathProgramCache]: Analyzing trace with hash 1575530035, now seen corresponding path program 2 times [2024-11-17 07:56:46,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:46,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728773008] [2024-11-17 07:56:46,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:46,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:46,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:46,995 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 07:56:46,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:46,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728773008] [2024-11-17 07:56:46,995 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728773008] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:56:46,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822574897] [2024-11-17 07:56:46,996 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:56:46,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:46,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:56:46,997 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 07:56:47,001 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 07:56:47,050 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-17 07:56:47,051 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:56:47,051 INFO L255 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 07:56:47,052 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:56:47,091 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 07:56:47,091 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:56:47,129 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 07:56:47,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822574897] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:56:47,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:56:47,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-17 07:56:47,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407346951] [2024-11-17 07:56:47,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:56:47,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-17 07:56:47,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:47,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-17 07:56:47,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-17 07:56:47,184 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 80 [2024-11-17 07:56:47,185 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 118 transitions, 497 flow. Second operand has 14 states, 14 states have (on average 27.142857142857142) internal successors, (380), 14 states have internal predecessors, (380), 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 07:56:47,185 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:47,185 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 80 [2024-11-17 07:56:47,185 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:47,728 INFO L124 PetriNetUnfolderBase]: 1079/2027 cut-off events. [2024-11-17 07:56:47,728 INFO L125 PetriNetUnfolderBase]: For 1452/1666 co-relation queries the response was YES. [2024-11-17 07:56:47,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4950 conditions, 2027 events. 1079/2027 cut-off events. For 1452/1666 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 12527 event pairs, 724 based on Foata normal form. 5/1896 useless extension candidates. Maximal degree in co-relation 4770. Up to 1477 conditions per place. [2024-11-17 07:56:47,739 INFO L140 encePairwiseOnDemand]: 60/80 looper letters, 45 selfloop transitions, 81 changer transitions 0/149 dead transitions. [2024-11-17 07:56:47,739 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 149 transitions, 838 flow [2024-11-17 07:56:47,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-17 07:56:47,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-17 07:56:47,741 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 749 transitions. [2024-11-17 07:56:47,741 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39010416666666664 [2024-11-17 07:56:47,741 INFO L175 Difference]: Start difference. First operand has 85 places, 118 transitions, 497 flow. Second operand 24 states and 749 transitions. [2024-11-17 07:56:47,741 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 149 transitions, 838 flow [2024-11-17 07:56:47,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 149 transitions, 835 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:56:47,746 INFO L231 Difference]: Finished difference. Result has 109 places, 144 transitions, 785 flow [2024-11-17 07:56:47,747 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=484, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=785, PETRI_PLACES=109, PETRI_TRANSITIONS=144} [2024-11-17 07:56:47,749 INFO L277 CegarLoopForPetriNet]: 71 programPoint places, 38 predicate places. [2024-11-17 07:56:47,749 INFO L471 AbstractCegarLoop]: Abstraction has has 109 places, 144 transitions, 785 flow [2024-11-17 07:56:47,749 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 27.142857142857142) internal successors, (380), 14 states have internal predecessors, (380), 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 07:56:47,749 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:47,749 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, 1] [2024-11-17 07:56:47,763 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 07:56:47,953 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,SelfDestructingSolverStorable5 [2024-11-17 07:56:47,954 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:56:47,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:47,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1895900185, now seen corresponding path program 1 times [2024-11-17 07:56:47,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:47,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1786119518] [2024-11-17 07:56:47,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:47,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:47,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:48,022 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 07:56:48,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:48,022 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1786119518] [2024-11-17 07:56:48,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1786119518] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:56:48,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:56:48,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:56:48,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [252841543] [2024-11-17 07:56:48,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:56:48,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:56:48,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:48,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:56:48,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:56:48,033 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 80 [2024-11-17 07:56:48,034 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 109 places, 144 transitions, 785 flow. Second operand has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 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 07:56:48,034 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:48,034 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 80 [2024-11-17 07:56:48,034 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:48,293 INFO L124 PetriNetUnfolderBase]: 1297/2201 cut-off events. [2024-11-17 07:56:48,294 INFO L125 PetriNetUnfolderBase]: For 1701/1965 co-relation queries the response was YES. [2024-11-17 07:56:48,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5577 conditions, 2201 events. 1297/2201 cut-off events. For 1701/1965 co-relation queries the response was YES. Maximal size of possible extension queue 134. Compared 12565 event pairs, 388 based on Foata normal form. 79/2143 useless extension candidates. Maximal degree in co-relation 5491. Up to 788 conditions per place. [2024-11-17 07:56:48,304 INFO L140 encePairwiseOnDemand]: 74/80 looper letters, 124 selfloop transitions, 10 changer transitions 0/177 dead transitions. [2024-11-17 07:56:48,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 177 transitions, 1187 flow [2024-11-17 07:56:48,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:56:48,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:56:48,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 237 transitions. [2024-11-17 07:56:48,305 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5925 [2024-11-17 07:56:48,305 INFO L175 Difference]: Start difference. First operand has 109 places, 144 transitions, 785 flow. Second operand 5 states and 237 transitions. [2024-11-17 07:56:48,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 177 transitions, 1187 flow [2024-11-17 07:56:48,308 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 177 transitions, 1039 flow, removed 19 selfloop flow, removed 9 redundant places. [2024-11-17 07:56:48,309 INFO L231 Difference]: Finished difference. Result has 103 places, 143 transitions, 655 flow [2024-11-17 07:56:48,310 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=635, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=655, PETRI_PLACES=103, PETRI_TRANSITIONS=143} [2024-11-17 07:56:48,310 INFO L277 CegarLoopForPetriNet]: 71 programPoint places, 32 predicate places. [2024-11-17 07:56:48,310 INFO L471 AbstractCegarLoop]: Abstraction has has 103 places, 143 transitions, 655 flow [2024-11-17 07:56:48,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 38.6) internal successors, (193), 5 states have internal predecessors, (193), 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 07:56:48,310 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:48,311 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:56:48,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-17 07:56:48,311 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:56:48,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:48,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1406866746, now seen corresponding path program 1 times [2024-11-17 07:56:48,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:48,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53683687] [2024-11-17 07:56:48,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:48,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:48,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:48,383 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-17 07:56:48,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:48,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53683687] [2024-11-17 07:56:48,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53683687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:56:48,385 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:56:48,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:56:48,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930384280] [2024-11-17 07:56:48,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:56:48,386 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:56:48,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:48,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:56:48,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:56:48,400 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 80 [2024-11-17 07:56:48,400 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 143 transitions, 655 flow. Second operand has 5 states, 5 states have (on average 36.8) internal successors, (184), 5 states have internal predecessors, (184), 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 07:56:48,401 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:48,401 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 80 [2024-11-17 07:56:48,401 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:48,755 INFO L124 PetriNetUnfolderBase]: 1559/2964 cut-off events. [2024-11-17 07:56:48,756 INFO L125 PetriNetUnfolderBase]: For 2536/2781 co-relation queries the response was YES. [2024-11-17 07:56:48,762 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7632 conditions, 2964 events. 1559/2964 cut-off events. For 2536/2781 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 17717 event pairs, 882 based on Foata normal form. 62/2982 useless extension candidates. Maximal degree in co-relation 7523. Up to 1525 conditions per place. [2024-11-17 07:56:48,777 INFO L140 encePairwiseOnDemand]: 64/80 looper letters, 185 selfloop transitions, 40 changer transitions 0/250 dead transitions. [2024-11-17 07:56:48,777 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 250 transitions, 1603 flow [2024-11-17 07:56:48,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:56:48,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:56:48,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 310 transitions. [2024-11-17 07:56:48,779 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6458333333333334 [2024-11-17 07:56:48,779 INFO L175 Difference]: Start difference. First operand has 103 places, 143 transitions, 655 flow. Second operand 6 states and 310 transitions. [2024-11-17 07:56:48,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 250 transitions, 1603 flow [2024-11-17 07:56:48,786 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 250 transitions, 1557 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-17 07:56:48,789 INFO L231 Difference]: Finished difference. Result has 107 places, 162 transitions, 854 flow [2024-11-17 07:56:48,789 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=635, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=116, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=854, PETRI_PLACES=107, PETRI_TRANSITIONS=162} [2024-11-17 07:56:48,790 INFO L277 CegarLoopForPetriNet]: 71 programPoint places, 36 predicate places. [2024-11-17 07:56:48,790 INFO L471 AbstractCegarLoop]: Abstraction has has 107 places, 162 transitions, 854 flow [2024-11-17 07:56:48,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.8) internal successors, (184), 5 states have internal predecessors, (184), 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 07:56:48,791 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:48,791 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, 1, 1] [2024-11-17 07:56:48,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-17 07:56:48,791 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:56:48,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:48,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1356637069, now seen corresponding path program 1 times [2024-11-17 07:56:48,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:48,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420790678] [2024-11-17 07:56:48,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:48,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:48,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:48,873 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 07:56:48,873 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:48,873 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420790678] [2024-11-17 07:56:48,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420790678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:56:48,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:56:48,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:56:48,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116228390] [2024-11-17 07:56:48,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:56:48,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:56:48,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:48,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:56:48,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:56:48,892 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 80 [2024-11-17 07:56:48,893 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 162 transitions, 854 flow. Second operand has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 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 07:56:48,893 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:48,893 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 80 [2024-11-17 07:56:48,893 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:49,248 INFO L124 PetriNetUnfolderBase]: 1777/3108 cut-off events. [2024-11-17 07:56:49,249 INFO L125 PetriNetUnfolderBase]: For 3347/3676 co-relation queries the response was YES. [2024-11-17 07:56:49,254 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8279 conditions, 3108 events. 1777/3108 cut-off events. For 3347/3676 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 17525 event pairs, 1160 based on Foata normal form. 0/2974 useless extension candidates. Maximal degree in co-relation 8161. Up to 1822 conditions per place. [2024-11-17 07:56:49,266 INFO L140 encePairwiseOnDemand]: 64/80 looper letters, 176 selfloop transitions, 40 changer transitions 6/246 dead transitions. [2024-11-17 07:56:49,267 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 112 places, 246 transitions, 1690 flow [2024-11-17 07:56:49,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:56:49,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:56:49,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 295 transitions. [2024-11-17 07:56:49,268 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6145833333333334 [2024-11-17 07:56:49,268 INFO L175 Difference]: Start difference. First operand has 107 places, 162 transitions, 854 flow. Second operand 6 states and 295 transitions. [2024-11-17 07:56:49,268 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 112 places, 246 transitions, 1690 flow [2024-11-17 07:56:49,273 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 246 transitions, 1690 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-17 07:56:49,275 INFO L231 Difference]: Finished difference. Result has 114 places, 164 transitions, 962 flow [2024-11-17 07:56:49,276 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=854, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=962, PETRI_PLACES=114, PETRI_TRANSITIONS=164} [2024-11-17 07:56:49,276 INFO L277 CegarLoopForPetriNet]: 71 programPoint places, 43 predicate places. [2024-11-17 07:56:49,276 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 164 transitions, 962 flow [2024-11-17 07:56:49,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.4) internal successors, (177), 5 states have internal predecessors, (177), 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 07:56:49,277 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:49,277 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:56:49,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-17 07:56:49,277 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:56:49,277 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:49,278 INFO L85 PathProgramCache]: Analyzing trace with hash -1861642130, now seen corresponding path program 1 times [2024-11-17 07:56:49,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:49,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389176815] [2024-11-17 07:56:49,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:49,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:49,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:49,382 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-17 07:56:49,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:49,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389176815] [2024-11-17 07:56:49,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389176815] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:56:49,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:56:49,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-17 07:56:49,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699693992] [2024-11-17 07:56:49,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:56:49,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:56:49,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:49,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:56:49,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-17 07:56:49,406 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 80 [2024-11-17 07:56:49,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 164 transitions, 962 flow. Second operand has 6 states, 6 states have (on average 36.666666666666664) internal successors, (220), 6 states have internal predecessors, (220), 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 07:56:49,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:49,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 80 [2024-11-17 07:56:49,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:49,760 INFO L124 PetriNetUnfolderBase]: 1281/2441 cut-off events. [2024-11-17 07:56:49,760 INFO L125 PetriNetUnfolderBase]: For 2922/3137 co-relation queries the response was YES. [2024-11-17 07:56:49,765 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6660 conditions, 2441 events. 1281/2441 cut-off events. For 2922/3137 co-relation queries the response was YES. Maximal size of possible extension queue 119. Compared 14125 event pairs, 808 based on Foata normal form. 34/2436 useless extension candidates. Maximal degree in co-relation 6531. Up to 1525 conditions per place. [2024-11-17 07:56:49,773 INFO L140 encePairwiseOnDemand]: 64/80 looper letters, 139 selfloop transitions, 36 changer transitions 39/239 dead transitions. [2024-11-17 07:56:49,773 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 239 transitions, 1745 flow [2024-11-17 07:56:49,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-17 07:56:49,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-17 07:56:49,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 339 transitions. [2024-11-17 07:56:49,774 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6053571428571428 [2024-11-17 07:56:49,775 INFO L175 Difference]: Start difference. First operand has 114 places, 164 transitions, 962 flow. Second operand 7 states and 339 transitions. [2024-11-17 07:56:49,775 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 239 transitions, 1745 flow [2024-11-17 07:56:49,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 239 transitions, 1683 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:56:49,782 INFO L231 Difference]: Finished difference. Result has 120 places, 157 transitions, 950 flow [2024-11-17 07:56:49,782 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=900, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=950, PETRI_PLACES=120, PETRI_TRANSITIONS=157} [2024-11-17 07:56:49,783 INFO L277 CegarLoopForPetriNet]: 71 programPoint places, 49 predicate places. [2024-11-17 07:56:49,783 INFO L471 AbstractCegarLoop]: Abstraction has has 120 places, 157 transitions, 950 flow [2024-11-17 07:56:49,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.666666666666664) internal successors, (220), 6 states have internal predecessors, (220), 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 07:56:49,783 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:49,784 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 5, 1, 1, 1, 1, 1] [2024-11-17 07:56:49,784 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-17 07:56:49,784 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:56:49,784 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:49,784 INFO L85 PathProgramCache]: Analyzing trace with hash -2099392387, now seen corresponding path program 1 times [2024-11-17 07:56:49,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:49,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915260882] [2024-11-17 07:56:49,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:49,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:49,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:49,857 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 07:56:49,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:49,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915260882] [2024-11-17 07:56:49,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915260882] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:56:49,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:56:49,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-17 07:56:49,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325432957] [2024-11-17 07:56:49,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:56:49,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-17 07:56:49,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:49,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-17 07:56:49,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-17 07:56:49,867 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 80 [2024-11-17 07:56:49,868 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 157 transitions, 950 flow. Second operand has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 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 07:56:49,868 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:49,868 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 80 [2024-11-17 07:56:49,868 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:50,125 INFO L124 PetriNetUnfolderBase]: 1077/2008 cut-off events. [2024-11-17 07:56:50,125 INFO L125 PetriNetUnfolderBase]: For 2465/2662 co-relation queries the response was YES. [2024-11-17 07:56:50,129 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5530 conditions, 2008 events. 1077/2008 cut-off events. For 2465/2662 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 11731 event pairs, 724 based on Foata normal form. 3/1935 useless extension candidates. Maximal degree in co-relation 5432. Up to 1525 conditions per place. [2024-11-17 07:56:50,135 INFO L140 encePairwiseOnDemand]: 66/80 looper letters, 91 selfloop transitions, 20 changer transitions 10/146 dead transitions. [2024-11-17 07:56:50,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 146 transitions, 1035 flow [2024-11-17 07:56:50,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-17 07:56:50,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-17 07:56:50,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 228 transitions. [2024-11-17 07:56:50,137 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.57 [2024-11-17 07:56:50,137 INFO L175 Difference]: Start difference. First operand has 120 places, 157 transitions, 950 flow. Second operand 5 states and 228 transitions. [2024-11-17 07:56:50,137 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 146 transitions, 1035 flow [2024-11-17 07:56:50,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 146 transitions, 944 flow, removed 14 selfloop flow, removed 10 redundant places. [2024-11-17 07:56:50,146 INFO L231 Difference]: Finished difference. Result has 108 places, 136 transitions, 694 flow [2024-11-17 07:56:50,146 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=694, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=694, PETRI_PLACES=108, PETRI_TRANSITIONS=136} [2024-11-17 07:56:50,146 INFO L277 CegarLoopForPetriNet]: 71 programPoint places, 37 predicate places. [2024-11-17 07:56:50,146 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 136 transitions, 694 flow [2024-11-17 07:56:50,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 35.2) internal successors, (176), 5 states have internal predecessors, (176), 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 07:56:50,147 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:50,147 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 5, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:56:50,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-17 07:56:50,147 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:56:50,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:50,147 INFO L85 PathProgramCache]: Analyzing trace with hash 706721723, now seen corresponding path program 1 times [2024-11-17 07:56:50,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:50,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131927281] [2024-11-17 07:56:50,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:50,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:50,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:50,285 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 26 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-17 07:56:50,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:50,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131927281] [2024-11-17 07:56:50,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131927281] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:56:50,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740134736] [2024-11-17 07:56:50,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:50,286 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:50,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:56:50,288 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 07:56:50,289 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 07:56:50,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:50,356 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-17 07:56:50,358 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:56:50,477 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-17 07:56:50,478 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:56:50,589 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 28 proven. 2 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-17 07:56:50,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740134736] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:56:50,589 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:56:50,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 19 [2024-11-17 07:56:50,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047178526] [2024-11-17 07:56:50,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:56:50,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-17 07:56:50,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:50,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-17 07:56:50,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=315, Unknown=0, NotChecked=0, Total=380 [2024-11-17 07:56:50,758 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 80 [2024-11-17 07:56:50,759 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 136 transitions, 694 flow. Second operand has 20 states, 20 states have (on average 27.3) internal successors, (546), 20 states have internal predecessors, (546), 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 07:56:50,759 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:50,759 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 80 [2024-11-17 07:56:50,759 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:51,340 INFO L124 PetriNetUnfolderBase]: 2129/3775 cut-off events. [2024-11-17 07:56:51,341 INFO L125 PetriNetUnfolderBase]: For 2583/3026 co-relation queries the response was YES. [2024-11-17 07:56:51,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9236 conditions, 3775 events. 2129/3775 cut-off events. For 2583/3026 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 22247 event pairs, 1448 based on Foata normal form. 3/3694 useless extension candidates. Maximal degree in co-relation 9147. Up to 1480 conditions per place. [2024-11-17 07:56:51,362 INFO L140 encePairwiseOnDemand]: 63/80 looper letters, 62 selfloop transitions, 91 changer transitions 0/175 dead transitions. [2024-11-17 07:56:51,362 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 175 transitions, 1175 flow [2024-11-17 07:56:51,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-17 07:56:51,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2024-11-17 07:56:51,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 411 transitions. [2024-11-17 07:56:51,363 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.428125 [2024-11-17 07:56:51,363 INFO L175 Difference]: Start difference. First operand has 108 places, 136 transitions, 694 flow. Second operand 12 states and 411 transitions. [2024-11-17 07:56:51,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 175 transitions, 1175 flow [2024-11-17 07:56:51,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 175 transitions, 1088 flow, removed 6 selfloop flow, removed 4 redundant places. [2024-11-17 07:56:51,369 INFO L231 Difference]: Finished difference. Result has 113 places, 149 transitions, 904 flow [2024-11-17 07:56:51,369 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=628, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=904, PETRI_PLACES=113, PETRI_TRANSITIONS=149} [2024-11-17 07:56:51,369 INFO L277 CegarLoopForPetriNet]: 71 programPoint places, 42 predicate places. [2024-11-17 07:56:51,369 INFO L471 AbstractCegarLoop]: Abstraction has has 113 places, 149 transitions, 904 flow [2024-11-17 07:56:51,370 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 27.3) internal successors, (546), 20 states have internal predecessors, (546), 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 07:56:51,370 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:51,370 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 5, 3, 2, 2, 2, 1, 1, 1, 1] [2024-11-17 07:56:51,390 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 07:56:51,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:51,571 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:56:51,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:51,571 INFO L85 PathProgramCache]: Analyzing trace with hash 58707961, now seen corresponding path program 2 times [2024-11-17 07:56:51,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:51,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475144926] [2024-11-17 07:56:51,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:51,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:51,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:51,867 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 42 proven. 26 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:56:51,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:51,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475144926] [2024-11-17 07:56:51,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475144926] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:56:51,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [800518102] [2024-11-17 07:56:51,868 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:56:51,868 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:51,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:56:51,869 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 07:56:51,870 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 07:56:51,925 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-17 07:56:51,925 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:56:51,926 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-17 07:56:51,927 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:56:51,990 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-17 07:56:51,991 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:56:52,050 INFO L134 CoverageAnalysis]: Checked inductivity of 68 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2024-11-17 07:56:52,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [800518102] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:56:52,051 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:56:52,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 3, 3] total 21 [2024-11-17 07:56:52,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880338123] [2024-11-17 07:56:52,051 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:56:52,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-17 07:56:52,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:52,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-17 07:56:52,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=395, Unknown=0, NotChecked=0, Total=462 [2024-11-17 07:56:52,272 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 80 [2024-11-17 07:56:52,273 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 149 transitions, 904 flow. Second operand has 22 states, 22 states have (on average 27.272727272727273) internal successors, (600), 22 states have internal predecessors, (600), 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 07:56:52,273 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:52,273 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 80 [2024-11-17 07:56:52,273 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:53,159 INFO L124 PetriNetUnfolderBase]: 3186/5612 cut-off events. [2024-11-17 07:56:53,159 INFO L125 PetriNetUnfolderBase]: For 3954/4611 co-relation queries the response was YES. [2024-11-17 07:56:53,170 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13745 conditions, 5612 events. 3186/5612 cut-off events. For 3954/4611 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 33483 event pairs, 2172 based on Foata normal form. 6/5470 useless extension candidates. Maximal degree in co-relation 13647. Up to 2913 conditions per place. [2024-11-17 07:56:53,192 INFO L140 encePairwiseOnDemand]: 60/80 looper letters, 58 selfloop transitions, 111 changer transitions 0/191 dead transitions. [2024-11-17 07:56:53,192 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 191 transitions, 1434 flow [2024-11-17 07:56:53,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-17 07:56:53,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-17 07:56:53,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 676 transitions. [2024-11-17 07:56:53,195 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4023809523809524 [2024-11-17 07:56:53,195 INFO L175 Difference]: Start difference. First operand has 113 places, 149 transitions, 904 flow. Second operand 21 states and 676 transitions. [2024-11-17 07:56:53,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 191 transitions, 1434 flow [2024-11-17 07:56:53,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 125 places, 191 transitions, 1344 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-11-17 07:56:53,203 INFO L231 Difference]: Finished difference. Result has 126 places, 165 transitions, 1156 flow [2024-11-17 07:56:53,203 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=795, PETRI_DIFFERENCE_MINUEND_PLACES=105, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1156, PETRI_PLACES=126, PETRI_TRANSITIONS=165} [2024-11-17 07:56:53,203 INFO L277 CegarLoopForPetriNet]: 71 programPoint places, 55 predicate places. [2024-11-17 07:56:53,203 INFO L471 AbstractCegarLoop]: Abstraction has has 126 places, 165 transitions, 1156 flow [2024-11-17 07:56:53,204 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 27.272727272727273) internal successors, (600), 22 states have internal predecessors, (600), 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 07:56:53,204 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:53,204 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 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, 1, 1, 1] [2024-11-17 07:56:53,226 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-17 07:56:53,404 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:53,405 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:56:53,406 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:53,406 INFO L85 PathProgramCache]: Analyzing trace with hash 483859546, now seen corresponding path program 1 times [2024-11-17 07:56:53,406 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:53,406 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2129763060] [2024-11-17 07:56:53,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:53,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:53,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:53,508 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-17 07:56:53,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:53,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2129763060] [2024-11-17 07:56:53,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2129763060] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:56:53,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748005417] [2024-11-17 07:56:53,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:53,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:53,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:56:53,510 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:56:53,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-17 07:56:53,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:53,604 INFO L255 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-17 07:56:53,606 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:56:53,735 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-17 07:56:53,735 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:56:53,886 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-17 07:56:53,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748005417] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:56:53,887 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:56:53,887 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 8, 8] total 19 [2024-11-17 07:56:53,887 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860560524] [2024-11-17 07:56:53,887 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:56:53,887 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-17 07:56:53,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:53,888 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-17 07:56:53,888 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=279, Unknown=0, NotChecked=0, Total=342 [2024-11-17 07:56:54,042 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 80 [2024-11-17 07:56:54,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 165 transitions, 1156 flow. Second operand has 19 states, 19 states have (on average 25.842105263157894) internal successors, (491), 19 states have internal predecessors, (491), 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 07:56:54,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:54,044 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 80 [2024-11-17 07:56:54,044 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:55,184 INFO L124 PetriNetUnfolderBase]: 4516/7778 cut-off events. [2024-11-17 07:56:55,184 INFO L125 PetriNetUnfolderBase]: For 4676/5157 co-relation queries the response was YES. [2024-11-17 07:56:55,199 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18840 conditions, 7778 events. 4516/7778 cut-off events. For 4676/5157 co-relation queries the response was YES. Maximal size of possible extension queue 174. Compared 47959 event pairs, 948 based on Foata normal form. 186/7756 useless extension candidates. Maximal degree in co-relation 18732. Up to 1161 conditions per place. [2024-11-17 07:56:55,225 INFO L140 encePairwiseOnDemand]: 57/80 looper letters, 215 selfloop transitions, 100 changer transitions 0/334 dead transitions. [2024-11-17 07:56:55,226 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 334 transitions, 2325 flow [2024-11-17 07:56:55,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-17 07:56:55,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2024-11-17 07:56:55,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 654 transitions. [2024-11-17 07:56:55,228 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.43026315789473685 [2024-11-17 07:56:55,228 INFO L175 Difference]: Start difference. First operand has 126 places, 165 transitions, 1156 flow. Second operand 19 states and 654 transitions. [2024-11-17 07:56:55,228 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 334 transitions, 2325 flow [2024-11-17 07:56:55,295 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 334 transitions, 2119 flow, removed 6 selfloop flow, removed 11 redundant places. [2024-11-17 07:56:55,299 INFO L231 Difference]: Finished difference. Result has 132 places, 171 transitions, 1172 flow [2024-11-17 07:56:55,299 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=946, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=164, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=1172, PETRI_PLACES=132, PETRI_TRANSITIONS=171} [2024-11-17 07:56:55,300 INFO L277 CegarLoopForPetriNet]: 71 programPoint places, 61 predicate places. [2024-11-17 07:56:55,300 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 171 transitions, 1172 flow [2024-11-17 07:56:55,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 25.842105263157894) internal successors, (491), 19 states have internal predecessors, (491), 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 07:56:55,301 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:55,302 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:56:55,317 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-17 07:56:55,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-17 07:56:55,506 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:56:55,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:55,506 INFO L85 PathProgramCache]: Analyzing trace with hash -160390023, now seen corresponding path program 1 times [2024-11-17 07:56:55,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:55,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979164990] [2024-11-17 07:56:55,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:55,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:55,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:55,612 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-17 07:56:55,612 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:55,612 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979164990] [2024-11-17 07:56:55,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979164990] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:56:55,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1798029417] [2024-11-17 07:56:55,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:55,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:55,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:56:55,614 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:56:55,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-17 07:56:55,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:55,697 INFO L255 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-17 07:56:55,699 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:56:55,801 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-17 07:56:55,802 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:56:55,926 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-17 07:56:55,927 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1798029417] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:56:55,927 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:56:55,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 18 [2024-11-17 07:56:55,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025743134] [2024-11-17 07:56:55,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:56:55,927 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-17 07:56:55,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:55,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-17 07:56:55,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=314, Unknown=0, NotChecked=0, Total=380 [2024-11-17 07:56:56,067 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 80 [2024-11-17 07:56:56,068 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 171 transitions, 1172 flow. Second operand has 20 states, 20 states have (on average 26.15) internal successors, (523), 20 states have internal predecessors, (523), 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 07:56:56,068 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:56,068 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 80 [2024-11-17 07:56:56,068 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:56,976 INFO L124 PetriNetUnfolderBase]: 5150/8163 cut-off events. [2024-11-17 07:56:56,976 INFO L125 PetriNetUnfolderBase]: For 9978/10806 co-relation queries the response was YES. [2024-11-17 07:56:56,988 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22373 conditions, 8163 events. 5150/8163 cut-off events. For 9978/10806 co-relation queries the response was YES. Maximal size of possible extension queue 181. Compared 47505 event pairs, 2098 based on Foata normal form. 0/7624 useless extension candidates. Maximal degree in co-relation 22269. Up to 3394 conditions per place. [2024-11-17 07:56:57,066 INFO L140 encePairwiseOnDemand]: 58/80 looper letters, 157 selfloop transitions, 67 changer transitions 12/258 dead transitions. [2024-11-17 07:56:57,066 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 258 transitions, 2020 flow [2024-11-17 07:56:57,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-17 07:56:57,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2024-11-17 07:56:57,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 486 transitions. [2024-11-17 07:56:57,067 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.405 [2024-11-17 07:56:57,067 INFO L175 Difference]: Start difference. First operand has 132 places, 171 transitions, 1172 flow. Second operand 15 states and 486 transitions. [2024-11-17 07:56:57,067 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 258 transitions, 2020 flow [2024-11-17 07:56:57,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 135 places, 258 transitions, 1836 flow, removed 9 selfloop flow, removed 10 redundant places. [2024-11-17 07:56:57,077 INFO L231 Difference]: Finished difference. Result has 135 places, 175 transitions, 1177 flow [2024-11-17 07:56:57,077 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=1032, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=1177, PETRI_PLACES=135, PETRI_TRANSITIONS=175} [2024-11-17 07:56:57,078 INFO L277 CegarLoopForPetriNet]: 71 programPoint places, 64 predicate places. [2024-11-17 07:56:57,078 INFO L471 AbstractCegarLoop]: Abstraction has has 135 places, 175 transitions, 1177 flow [2024-11-17 07:56:57,078 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 26.15) internal successors, (523), 20 states have internal predecessors, (523), 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 07:56:57,078 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:57,078 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 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, 1, 1, 1, 1, 1] [2024-11-17 07:56:57,092 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-17 07:56:57,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-17 07:56:57,280 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:56:57,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:57,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1644841726, now seen corresponding path program 1 times [2024-11-17 07:56:57,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:57,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786431359] [2024-11-17 07:56:57,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:57,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:57,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:57,367 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-17 07:56:57,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:57,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786431359] [2024-11-17 07:56:57,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786431359] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:56:57,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [505206788] [2024-11-17 07:56:57,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:57,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:57,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:56:57,369 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:56:57,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-17 07:56:57,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:57,452 INFO L255 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-17 07:56:57,454 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:56:57,595 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-17 07:56:57,595 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:56:57,708 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-17 07:56:57,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [505206788] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:56:57,708 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:56:57,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 9, 9] total 21 [2024-11-17 07:56:57,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460117850] [2024-11-17 07:56:57,709 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:56:57,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-17 07:56:57,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:57,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-17 07:56:57,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=358, Unknown=0, NotChecked=0, Total=420 [2024-11-17 07:56:57,873 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 23 out of 80 [2024-11-17 07:56:57,873 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 175 transitions, 1177 flow. Second operand has 21 states, 21 states have (on average 25.952380952380953) internal successors, (545), 21 states have internal predecessors, (545), 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 07:56:57,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:57,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 23 of 80 [2024-11-17 07:56:57,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:56:59,134 INFO L124 PetriNetUnfolderBase]: 5738/9461 cut-off events. [2024-11-17 07:56:59,134 INFO L125 PetriNetUnfolderBase]: For 8235/8542 co-relation queries the response was YES. [2024-11-17 07:56:59,150 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25245 conditions, 9461 events. 5738/9461 cut-off events. For 8235/8542 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 59539 event pairs, 765 based on Foata normal form. 242/9486 useless extension candidates. Maximal degree in co-relation 25141. Up to 1332 conditions per place. [2024-11-17 07:56:59,174 INFO L140 encePairwiseOnDemand]: 57/80 looper letters, 159 selfloop transitions, 75 changer transitions 109/361 dead transitions. [2024-11-17 07:56:59,174 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 361 transitions, 2571 flow [2024-11-17 07:56:59,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-17 07:56:59,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2024-11-17 07:56:59,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 714 transitions. [2024-11-17 07:56:59,175 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.425 [2024-11-17 07:56:59,175 INFO L175 Difference]: Start difference. First operand has 135 places, 175 transitions, 1177 flow. Second operand 21 states and 714 transitions. [2024-11-17 07:56:59,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 361 transitions, 2571 flow [2024-11-17 07:56:59,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 361 transitions, 2461 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-11-17 07:56:59,191 INFO L231 Difference]: Finished difference. Result has 145 places, 142 transitions, 1022 flow [2024-11-17 07:56:59,191 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=1063, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=1022, PETRI_PLACES=145, PETRI_TRANSITIONS=142} [2024-11-17 07:56:59,191 INFO L277 CegarLoopForPetriNet]: 71 programPoint places, 74 predicate places. [2024-11-17 07:56:59,191 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 142 transitions, 1022 flow [2024-11-17 07:56:59,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 25.952380952380953) internal successors, (545), 21 states have internal predecessors, (545), 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 07:56:59,192 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:56:59,192 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:56:59,205 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-17 07:56:59,392 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:59,393 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:56:59,393 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:56:59,393 INFO L85 PathProgramCache]: Analyzing trace with hash -899220142, now seen corresponding path program 1 times [2024-11-17 07:56:59,393 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:56:59,393 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495145390] [2024-11-17 07:56:59,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:59,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:56:59,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:59,514 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-17 07:56:59,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:56:59,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495145390] [2024-11-17 07:56:59,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495145390] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:56:59,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671723976] [2024-11-17 07:56:59,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:56:59,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:56:59,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:56:59,517 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:56:59,518 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-17 07:56:59,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:56:59,596 INFO L255 TraceCheckSpWp]: Trace formula consists of 284 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:56:59,598 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:56:59,620 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-17 07:56:59,620 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:56:59,690 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-17 07:56:59,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671723976] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:56:59,690 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:56:59,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-17 07:56:59,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431992922] [2024-11-17 07:56:59,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:56:59,691 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 07:56:59,691 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:56:59,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 07:56:59,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-17 07:56:59,709 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 80 [2024-11-17 07:56:59,709 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 145 places, 142 transitions, 1022 flow. Second operand has 12 states, 12 states have (on average 38.25) internal successors, (459), 12 states have internal predecessors, (459), 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 07:56:59,710 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:56:59,710 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 80 [2024-11-17 07:56:59,710 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:57:01,116 INFO L124 PetriNetUnfolderBase]: 6973/12743 cut-off events. [2024-11-17 07:57:01,116 INFO L125 PetriNetUnfolderBase]: For 16150/16440 co-relation queries the response was YES. [2024-11-17 07:57:01,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 35506 conditions, 12743 events. 6973/12743 cut-off events. For 16150/16440 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 94678 event pairs, 2210 based on Foata normal form. 516/13069 useless extension candidates. Maximal degree in co-relation 35402. Up to 4704 conditions per place. [2024-11-17 07:57:01,172 INFO L140 encePairwiseOnDemand]: 75/80 looper letters, 245 selfloop transitions, 13 changer transitions 0/295 dead transitions. [2024-11-17 07:57:01,172 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 295 transitions, 2228 flow [2024-11-17 07:57:01,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 07:57:01,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-17 07:57:01,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 512 transitions. [2024-11-17 07:57:01,173 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.64 [2024-11-17 07:57:01,173 INFO L175 Difference]: Start difference. First operand has 145 places, 142 transitions, 1022 flow. Second operand 10 states and 512 transitions. [2024-11-17 07:57:01,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 295 transitions, 2228 flow [2024-11-17 07:57:01,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 295 transitions, 1812 flow, removed 18 selfloop flow, removed 14 redundant places. [2024-11-17 07:57:01,193 INFO L231 Difference]: Finished difference. Result has 124 places, 151 transitions, 844 flow [2024-11-17 07:57:01,193 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=764, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=844, PETRI_PLACES=124, PETRI_TRANSITIONS=151} [2024-11-17 07:57:01,193 INFO L277 CegarLoopForPetriNet]: 71 programPoint places, 53 predicate places. [2024-11-17 07:57:01,193 INFO L471 AbstractCegarLoop]: Abstraction has has 124 places, 151 transitions, 844 flow [2024-11-17 07:57:01,194 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 38.25) internal successors, (459), 12 states have internal predecessors, (459), 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 07:57:01,194 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:57:01,194 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:57:01,208 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-17 07:57:01,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-17 07:57:01,394 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:57:01,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:57:01,395 INFO L85 PathProgramCache]: Analyzing trace with hash -1062719820, now seen corresponding path program 1 times [2024-11-17 07:57:01,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:57:01,395 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614277480] [2024-11-17 07:57:01,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:57:01,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:57:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:57:01,497 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-17 07:57:01,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:57:01,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614277480] [2024-11-17 07:57:01,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [614277480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:57:01,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001256995] [2024-11-17 07:57:01,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:57:01,498 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:57:01,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:57:01,499 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:57:01,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-17 07:57:01,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:57:01,600 INFO L255 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:57:01,602 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:57:01,618 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-17 07:57:01,618 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:57:01,644 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-17 07:57:01,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001256995] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:57:01,644 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:57:01,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-17 07:57:01,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706655221] [2024-11-17 07:57:01,645 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:57:01,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 07:57:01,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:57:01,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 07:57:01,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-17 07:57:01,658 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 80 [2024-11-17 07:57:01,659 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 151 transitions, 844 flow. Second operand has 12 states, 12 states have (on average 38.416666666666664) internal successors, (461), 12 states have internal predecessors, (461), 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 07:57:01,659 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:57:01,659 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 80 [2024-11-17 07:57:01,659 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:57:03,980 INFO L124 PetriNetUnfolderBase]: 13985/24367 cut-off events. [2024-11-17 07:57:03,980 INFO L125 PetriNetUnfolderBase]: For 33996/34330 co-relation queries the response was YES. [2024-11-17 07:57:04,035 INFO L83 FinitePrefix]: Finished finitePrefix Result has 65467 conditions, 24367 events. 13985/24367 cut-off events. For 33996/34330 co-relation queries the response was YES. Maximal size of possible extension queue 514. Compared 187984 event pairs, 3274 based on Foata normal form. 996/25133 useless extension candidates. Maximal degree in co-relation 65380. Up to 8716 conditions per place. [2024-11-17 07:57:04,109 INFO L140 encePairwiseOnDemand]: 75/80 looper letters, 318 selfloop transitions, 13 changer transitions 0/368 dead transitions. [2024-11-17 07:57:04,109 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 368 transitions, 2614 flow [2024-11-17 07:57:04,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 07:57:04,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-17 07:57:04,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 504 transitions. [2024-11-17 07:57:04,110 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.63 [2024-11-17 07:57:04,110 INFO L175 Difference]: Start difference. First operand has 124 places, 151 transitions, 844 flow. Second operand 10 states and 504 transitions. [2024-11-17 07:57:04,110 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 368 transitions, 2614 flow [2024-11-17 07:57:04,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 368 transitions, 2515 flow, removed 27 selfloop flow, removed 2 redundant places. [2024-11-17 07:57:04,138 INFO L231 Difference]: Finished difference. Result has 134 places, 160 transitions, 913 flow [2024-11-17 07:57:04,138 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=833, PETRI_DIFFERENCE_MINUEND_PLACES=122, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=913, PETRI_PLACES=134, PETRI_TRANSITIONS=160} [2024-11-17 07:57:04,139 INFO L277 CegarLoopForPetriNet]: 71 programPoint places, 63 predicate places. [2024-11-17 07:57:04,139 INFO L471 AbstractCegarLoop]: Abstraction has has 134 places, 160 transitions, 913 flow [2024-11-17 07:57:04,139 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 38.416666666666664) internal successors, (461), 12 states have internal predecessors, (461), 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 07:57:04,139 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:57:04,139 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:57:04,152 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-17 07:57:04,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-17 07:57:04,340 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:57:04,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:57:04,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1892039292, now seen corresponding path program 2 times [2024-11-17 07:57:04,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:57:04,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847671759] [2024-11-17 07:57:04,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:57:04,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:57:04,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:57:04,518 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-17 07:57:04,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:57:04,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847671759] [2024-11-17 07:57:04,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847671759] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:57:04,519 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727894363] [2024-11-17 07:57:04,519 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:57:04,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:57:04,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:57:04,521 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:57:04,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-17 07:57:04,605 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-17 07:57:04,606 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:57:04,607 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 07:57:04,608 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:57:04,680 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-17 07:57:04,680 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:57:04,746 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-17 07:57:04,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727894363] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:57:04,746 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:57:04,746 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 2, 2] total 9 [2024-11-17 07:57:04,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088143834] [2024-11-17 07:57:04,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:57:04,747 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-17 07:57:04,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:57:04,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-17 07:57:04,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-17 07:57:04,845 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 80 [2024-11-17 07:57:04,846 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 134 places, 160 transitions, 913 flow. Second operand has 11 states, 11 states have (on average 28.363636363636363) internal successors, (312), 11 states have internal predecessors, (312), 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 07:57:04,846 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:57:04,846 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 80 [2024-11-17 07:57:04,846 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:57:07,055 INFO L124 PetriNetUnfolderBase]: 13063/21511 cut-off events. [2024-11-17 07:57:07,056 INFO L125 PetriNetUnfolderBase]: For 41566/41848 co-relation queries the response was YES. [2024-11-17 07:57:07,103 INFO L83 FinitePrefix]: Finished finitePrefix Result has 64692 conditions, 21511 events. 13063/21511 cut-off events. For 41566/41848 co-relation queries the response was YES. Maximal size of possible extension queue 455. Compared 153469 event pairs, 5590 based on Foata normal form. 316/21497 useless extension candidates. Maximal degree in co-relation 64596. Up to 5756 conditions per place. [2024-11-17 07:57:07,160 INFO L140 encePairwiseOnDemand]: 60/80 looper letters, 148 selfloop transitions, 70 changer transitions 20/258 dead transitions. [2024-11-17 07:57:07,161 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 258 transitions, 1884 flow [2024-11-17 07:57:07,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-17 07:57:07,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-17 07:57:07,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 514 transitions. [2024-11-17 07:57:07,162 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4015625 [2024-11-17 07:57:07,162 INFO L175 Difference]: Start difference. First operand has 134 places, 160 transitions, 913 flow. Second operand 16 states and 514 transitions. [2024-11-17 07:57:07,162 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 258 transitions, 1884 flow [2024-11-17 07:57:07,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 258 transitions, 1820 flow, removed 14 selfloop flow, removed 6 redundant places. [2024-11-17 07:57:07,197 INFO L231 Difference]: Finished difference. Result has 142 places, 164 transitions, 1059 flow [2024-11-17 07:57:07,197 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1059, PETRI_PLACES=142, PETRI_TRANSITIONS=164} [2024-11-17 07:57:07,197 INFO L277 CegarLoopForPetriNet]: 71 programPoint places, 71 predicate places. [2024-11-17 07:57:07,197 INFO L471 AbstractCegarLoop]: Abstraction has has 142 places, 164 transitions, 1059 flow [2024-11-17 07:57:07,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 28.363636363636363) internal successors, (312), 11 states have internal predecessors, (312), 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 07:57:07,198 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:57:07,198 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:57:07,210 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-17 07:57:07,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:57:07,399 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 20 more)] === [2024-11-17 07:57:07,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:57:07,399 INFO L85 PathProgramCache]: Analyzing trace with hash 859327334, now seen corresponding path program 2 times [2024-11-17 07:57:07,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:57:07,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852799746] [2024-11-17 07:57:07,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:57:07,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:57:07,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:57:07,592 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-17 07:57:07,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:57:07,592 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852799746] [2024-11-17 07:57:07,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852799746] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:57:07,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20723540] [2024-11-17 07:57:07,594 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:57:07,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:57:07,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:57:07,598 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:57:07,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-17 07:57:07,704 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-17 07:57:07,704 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:57:07,705 INFO L255 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-17 07:57:07,707 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:57:07,777 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-17 07:57:07,777 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:57:07,836 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2024-11-17 07:57:07,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20723540] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:57:07,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:57:07,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 2, 2] total 10 [2024-11-17 07:57:07,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014800957] [2024-11-17 07:57:07,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:57:07,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 07:57:07,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:57:07,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 07:57:07,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-17 07:57:07,939 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 24 out of 80 [2024-11-17 07:57:07,939 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 164 transitions, 1059 flow. Second operand has 12 states, 12 states have (on average 28.333333333333332) internal successors, (340), 12 states have internal predecessors, (340), 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 07:57:07,940 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:57:07,940 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 24 of 80 [2024-11-17 07:57:07,940 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:57:09,662 INFO L124 PetriNetUnfolderBase]: 10223/17581 cut-off events. [2024-11-17 07:57:09,662 INFO L125 PetriNetUnfolderBase]: For 36230/36230 co-relation queries the response was YES. [2024-11-17 07:57:09,717 INFO L83 FinitePrefix]: Finished finitePrefix Result has 52889 conditions, 17581 events. 10223/17581 cut-off events. For 36230/36230 co-relation queries the response was YES. Maximal size of possible extension queue 370. Compared 127207 event pairs, 4002 based on Foata normal form. 332/17772 useless extension candidates. Maximal degree in co-relation 52792. Up to 3864 conditions per place. [2024-11-17 07:57:09,732 INFO L140 encePairwiseOnDemand]: 60/80 looper letters, 0 selfloop transitions, 0 changer transitions 245/245 dead transitions. [2024-11-17 07:57:09,733 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 245 transitions, 1902 flow [2024-11-17 07:57:09,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-17 07:57:09,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2024-11-17 07:57:09,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 510 transitions. [2024-11-17 07:57:09,734 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3984375 [2024-11-17 07:57:09,734 INFO L175 Difference]: Start difference. First operand has 142 places, 164 transitions, 1059 flow. Second operand 16 states and 510 transitions. [2024-11-17 07:57:09,734 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 245 transitions, 1902 flow [2024-11-17 07:57:09,898 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 139 places, 245 transitions, 1796 flow, removed 2 selfloop flow, removed 15 redundant places. [2024-11-17 07:57:09,899 INFO L231 Difference]: Finished difference. Result has 139 places, 0 transitions, 0 flow [2024-11-17 07:57:09,899 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=80, PETRI_DIFFERENCE_MINUEND_FLOW=953, PETRI_DIFFERENCE_MINUEND_PLACES=124, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=163, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=0, PETRI_PLACES=139, PETRI_TRANSITIONS=0} [2024-11-17 07:57:09,900 INFO L277 CegarLoopForPetriNet]: 71 programPoint places, 68 predicate places. [2024-11-17 07:57:09,900 INFO L471 AbstractCegarLoop]: Abstraction has has 139 places, 0 transitions, 0 flow [2024-11-17 07:57:09,900 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 28.333333333333332) internal successors, (340), 12 states have internal predecessors, (340), 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 07:57:09,902 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 23 remaining) [2024-11-17 07:57:09,903 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 23 remaining) [2024-11-17 07:57:09,903 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 23 remaining) [2024-11-17 07:57:09,903 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 23 remaining) [2024-11-17 07:57:09,903 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 23 remaining) [2024-11-17 07:57:09,903 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 23 remaining) [2024-11-17 07:57:09,904 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 23 remaining) [2024-11-17 07:57:09,904 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 23 remaining) [2024-11-17 07:57:09,904 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 23 remaining) [2024-11-17 07:57:09,904 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 23 remaining) [2024-11-17 07:57:09,904 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 23 remaining) [2024-11-17 07:57:09,904 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 23 remaining) [2024-11-17 07:57:09,904 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 23 remaining) [2024-11-17 07:57:09,904 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 23 remaining) [2024-11-17 07:57:09,905 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 23 remaining) [2024-11-17 07:57:09,905 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 23 remaining) [2024-11-17 07:57:09,905 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 23 remaining) [2024-11-17 07:57:09,905 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 23 remaining) [2024-11-17 07:57:09,905 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 23 remaining) [2024-11-17 07:57:09,905 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 23 remaining) [2024-11-17 07:57:09,905 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 23 remaining) [2024-11-17 07:57:09,905 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 23 remaining) [2024-11-17 07:57:09,906 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 23 remaining) [2024-11-17 07:57:09,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-17 07:57:10,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:57:10,106 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:57:10,111 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 07:57:10,111 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 07:57:10,115 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 07:57:10 BasicIcfg [2024-11-17 07:57:10,115 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 07:57:10,116 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 07:57:10,116 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 07:57:10,116 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 07:57:10,116 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:56:44" (3/4) ... [2024-11-17 07:57:10,118 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 07:57:10,120 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-17 07:57:10,120 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-17 07:57:10,120 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-17 07:57:10,129 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 159 nodes and edges [2024-11-17 07:57:10,129 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 72 nodes and edges [2024-11-17 07:57:10,130 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 28 nodes and edges [2024-11-17 07:57:10,130 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-17 07:57:10,206 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 07:57:10,207 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 07:57:10,207 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 07:57:10,207 INFO L158 Benchmark]: Toolchain (without parser) took 27140.76ms. Allocated memory was 180.4MB in the beginning and 6.7GB in the end (delta: 6.5GB). Free memory was 121.6MB in the beginning and 5.8GB in the end (delta: -5.7GB). Peak memory consumption was 779.7MB. Max. memory is 16.1GB. [2024-11-17 07:57:10,208 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 180.4MB. Free memory is still 145.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 07:57:10,208 INFO L158 Benchmark]: CACSL2BoogieTranslator took 228.43ms. Allocated memory is still 180.4MB. Free memory was 121.6MB in the beginning and 107.8MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-11-17 07:57:10,208 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.14ms. Allocated memory is still 180.4MB. Free memory was 107.8MB in the beginning and 105.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:57:10,208 INFO L158 Benchmark]: Boogie Preprocessor took 46.38ms. Allocated memory is still 180.4MB. Free memory was 105.7MB in the beginning and 102.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:57:10,208 INFO L158 Benchmark]: IcfgBuilder took 801.42ms. Allocated memory was 180.4MB in the beginning and 260.0MB in the end (delta: 79.7MB). Free memory was 102.8MB in the beginning and 217.5MB in the end (delta: -114.7MB). Peak memory consumption was 70.5MB. Max. memory is 16.1GB. [2024-11-17 07:57:10,209 INFO L158 Benchmark]: TraceAbstraction took 25926.50ms. Allocated memory was 260.0MB in the beginning and 6.7GB in the end (delta: 6.4GB). Free memory was 216.4MB in the beginning and 5.8GB in the end (delta: -5.6GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. [2024-11-17 07:57:10,209 INFO L158 Benchmark]: Witness Printer took 91.46ms. Allocated memory is still 6.7GB. Free memory was 5.8GB in the beginning and 5.8GB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-11-17 07:57:10,210 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 180.4MB. Free memory is still 145.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 228.43ms. Allocated memory is still 180.4MB. Free memory was 121.6MB in the beginning and 107.8MB in the end (delta: 13.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.14ms. Allocated memory is still 180.4MB. Free memory was 107.8MB in the beginning and 105.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.38ms. Allocated memory is still 180.4MB. Free memory was 105.7MB in the beginning and 102.8MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 801.42ms. Allocated memory was 180.4MB in the beginning and 260.0MB in the end (delta: 79.7MB). Free memory was 102.8MB in the beginning and 217.5MB in the end (delta: -114.7MB). Peak memory consumption was 70.5MB. Max. memory is 16.1GB. * TraceAbstraction took 25926.50ms. Allocated memory was 260.0MB in the beginning and 6.7GB in the end (delta: 6.4GB). Free memory was 216.4MB in the beginning and 5.8GB in the end (delta: -5.6GB). Peak memory consumption was 1.3GB. Max. memory is 16.1GB. * Witness Printer took 91.46ms. Allocated memory is still 6.7GB. Free memory was 5.8GB in the beginning and 5.8GB in the end (delta: 7.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 50]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 58]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 107]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 97 locations, 23 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 25.8s, OverallIterations: 20, TraceHistogramMax: 6, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 18.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3390 SdHoareTripleChecker+Valid, 4.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3140 mSDsluCounter, 3338 SdHoareTripleChecker+Invalid, 3.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3174 mSDsCounter, 732 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10602 IncrementalHoareTripleChecker+Invalid, 11334 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 732 mSolverCounterUnsat, 164 mSDtfsCounter, 10602 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1139 GetRequests, 832 SyntacticMatches, 8 SemanticMatches, 299 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1229 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1177occurred in iteration=15, InterpolantAutomatonStates: 219, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 3.6s InterpolantComputationTime, 1092 NumberOfCodeBlocks, 952 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 1513 ConstructedInterpolants, 0 QuantifiedInterpolants, 4249 SizeOfPredicates, 55 NumberOfNonLiveVariables, 2100 ConjunctsInSsa, 78 ConjunctsInUnsatCore, 42 InterpolantComputations, 9 PerfectInterpolantSequences, 1096/1326 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 14 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-17 07:57:10,237 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE