./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 023d838f 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-multiply-verify.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 d79cb5dae664e13779624ff0ffbc531b419f89e2c7510a92e890992a52ee7c98 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 22:27:03,270 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 22:27:03,334 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-10 22:27:03,346 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 22:27:03,347 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 22:27:03,369 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 22:27:03,370 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 22:27:03,371 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 22:27:03,371 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 22:27:03,372 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 22:27:03,373 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 22:27:03,373 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 22:27:03,373 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 22:27:03,375 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 22:27:03,375 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 22:27:03,375 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 22:27:03,375 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 22:27:03,376 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 22:27:03,376 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 22:27:03,376 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 22:27:03,376 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 22:27:03,378 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 22:27:03,378 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 22:27:03,379 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 22:27:03,379 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 22:27:03,379 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-10 22:27:03,379 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 22:27:03,379 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 22:27:03,379 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 22:27:03,380 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 22:27:03,380 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 22:27:03,380 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 22:27:03,380 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 22:27:03,380 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 22:27:03,380 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:27:03,380 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 22:27:03,381 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 22:27:03,381 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 22:27:03,381 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 22:27:03,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 22:27:03,381 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 22:27:03,382 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 22:27:03,383 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 22:27:03,383 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 22:27:03,383 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d79cb5dae664e13779624ff0ffbc531b419f89e2c7510a92e890992a52ee7c98 [2024-11-10 22:27:03,562 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 22:27:03,582 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 22:27:03,584 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 22:27:03,585 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 22:27:03,585 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 22:27:03,586 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c [2024-11-10 22:27:04,761 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 22:27:04,915 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 22:27:04,915 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-multiply-verify.wvr.c [2024-11-10 22:27:04,922 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83ea2478d/b68b23ca97da472f87fe9f8889d47f51/FLAGca9eb2f3f [2024-11-10 22:27:04,934 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83ea2478d/b68b23ca97da472f87fe9f8889d47f51 [2024-11-10 22:27:04,936 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 22:27:04,937 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 22:27:04,938 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 22:27:04,938 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 22:27:04,943 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 22:27:04,944 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:27:04" (1/1) ... [2024-11-10 22:27:04,944 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43e873b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:04, skipping insertion in model container [2024-11-10 22:27:04,944 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:27:04" (1/1) ... [2024-11-10 22:27:04,963 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 22:27:05,114 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:27:05,122 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 22:27:05,139 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 22:27:05,154 INFO L204 MainTranslator]: Completed translation [2024-11-10 22:27:05,154 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:05 WrapperNode [2024-11-10 22:27:05,155 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 22:27:05,155 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 22:27:05,156 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 22:27:05,156 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 22:27:05,161 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:05" (1/1) ... [2024-11-10 22:27:05,167 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:05" (1/1) ... [2024-11-10 22:27:05,185 INFO L138 Inliner]: procedures = 25, calls = 36, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 186 [2024-11-10 22:27:05,187 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 22:27:05,187 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 22:27:05,187 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 22:27:05,187 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 22:27:05,196 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:05" (1/1) ... [2024-11-10 22:27:05,197 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:05" (1/1) ... [2024-11-10 22:27:05,200 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:05" (1/1) ... [2024-11-10 22:27:05,213 INFO L175 MemorySlicer]: Split 7 memory accesses to 2 slices as follows [2, 5]. 71 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-10 22:27:05,214 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:05" (1/1) ... [2024-11-10 22:27:05,214 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:05" (1/1) ... [2024-11-10 22:27:05,218 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:05" (1/1) ... [2024-11-10 22:27:05,219 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:05" (1/1) ... [2024-11-10 22:27:05,220 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:05" (1/1) ... [2024-11-10 22:27:05,221 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:05" (1/1) ... [2024-11-10 22:27:05,222 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 22:27:05,223 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 22:27:05,223 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 22:27:05,223 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 22:27:05,224 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:05" (1/1) ... [2024-11-10 22:27:05,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 22:27:05,235 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:27:05,253 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) [2024-11-10 22:27:05,256 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 [2024-11-10 22:27:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 22:27:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-10 22:27:05,293 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-10 22:27:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-10 22:27:05,293 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-10 22:27:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-10 22:27:05,293 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-10 22:27:05,293 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 22:27:05,294 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 22:27:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 22:27:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 22:27:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-10 22:27:05,295 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-10 22:27:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 22:27:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 22:27:05,296 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 22:27:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 22:27:05,296 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 22:27:05,298 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 22:27:05,405 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 22:27:05,407 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 22:27:05,688 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 22:27:05,688 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 22:27:05,894 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 22:27:05,895 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 22:27:05,895 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:27:05 BoogieIcfgContainer [2024-11-10 22:27:05,896 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 22:27:05,897 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 22:27:05,897 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 22:27:05,901 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 22:27:05,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:27:04" (1/3) ... [2024-11-10 22:27:05,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4411a120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:27:05, skipping insertion in model container [2024-11-10 22:27:05,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:27:05" (2/3) ... [2024-11-10 22:27:05,901 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4411a120 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:27:05, skipping insertion in model container [2024-11-10 22:27:05,901 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:27:05" (3/3) ... [2024-11-10 22:27:05,902 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-multiply-verify.wvr.c [2024-11-10 22:27:05,914 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 22:27:05,914 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2024-11-10 22:27:05,914 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 22:27:05,962 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-10 22:27:05,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 62 places, 58 transitions, 137 flow [2024-11-10 22:27:06,008 INFO L124 PetriNetUnfolderBase]: 6/55 cut-off events. [2024-11-10 22:27:06,008 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-10 22:27:06,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 68 conditions, 55 events. 6/55 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 138 event pairs, 0 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 44. Up to 2 conditions per place. [2024-11-10 22:27:06,013 INFO L82 GeneralOperation]: Start removeDead. Operand has 62 places, 58 transitions, 137 flow [2024-11-10 22:27:06,015 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 57 places, 53 transitions, 121 flow [2024-11-10 22:27:06,025 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 22:27:06,032 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;@15a7c2f1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 22:27:06,032 INFO L334 AbstractCegarLoop]: Starting to check reachability of 25 error locations. [2024-11-10 22:27:06,036 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 22:27:06,036 INFO L124 PetriNetUnfolderBase]: 2/8 cut-off events. [2024-11-10 22:27:06,036 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 22:27:06,036 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:27:06,037 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-10 22:27:06,037 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-10 22:27:06,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:27:06,041 INFO L85 PathProgramCache]: Analyzing trace with hash 15756341, now seen corresponding path program 1 times [2024-11-10 22:27:06,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:27:06,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778893946] [2024-11-10 22:27:06,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:06,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:27:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:06,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:27:06,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:27:06,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778893946] [2024-11-10 22:27:06,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [778893946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:27:06,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:27:06,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:27:06,326 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456352530] [2024-11-10 22:27:06,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:27:06,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:27:06,338 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:27:06,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:27:06,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:27:06,377 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 58 [2024-11-10 22:27:06,379 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 53 transitions, 121 flow. Second operand has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-10 22:27:06,381 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:27:06,381 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 58 [2024-11-10 22:27:06,382 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:27:06,731 INFO L124 PetriNetUnfolderBase]: 1238/1978 cut-off events. [2024-11-10 22:27:06,732 INFO L125 PetriNetUnfolderBase]: For 86/86 co-relation queries the response was YES. [2024-11-10 22:27:06,737 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3914 conditions, 1978 events. 1238/1978 cut-off events. For 86/86 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 12616 event pairs, 1060 based on Foata normal form. 179/1608 useless extension candidates. Maximal degree in co-relation 3613. Up to 1802 conditions per place. [2024-11-10 22:27:06,748 INFO L140 encePairwiseOnDemand]: 46/58 looper letters, 30 selfloop transitions, 4 changer transitions 0/50 dead transitions. [2024-11-10 22:27:06,748 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 50 transitions, 183 flow [2024-11-10 22:27:06,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 22:27:06,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 22:27:06,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 119 transitions. [2024-11-10 22:27:06,758 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5129310344827587 [2024-11-10 22:27:06,759 INFO L175 Difference]: Start difference. First operand has 57 places, 53 transitions, 121 flow. Second operand 4 states and 119 transitions. [2024-11-10 22:27:06,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 50 transitions, 183 flow [2024-11-10 22:27:06,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 50 transitions, 174 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-10 22:27:06,766 INFO L231 Difference]: Finished difference. Result has 54 places, 50 transitions, 129 flow [2024-11-10 22:27:06,767 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=129, PETRI_PLACES=54, PETRI_TRANSITIONS=50} [2024-11-10 22:27:06,770 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -3 predicate places. [2024-11-10 22:27:06,771 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 50 transitions, 129 flow [2024-11-10 22:27:06,771 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.75) internal successors, (79), 4 states have internal predecessors, (79), 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) [2024-11-10 22:27:06,771 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:27:06,771 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1] [2024-11-10 22:27:06,771 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 22:27:06,772 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-10 22:27:06,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:27:06,773 INFO L85 PathProgramCache]: Analyzing trace with hash -24029126, now seen corresponding path program 1 times [2024-11-10 22:27:06,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:27:06,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014514726] [2024-11-10 22:27:06,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:06,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:27:06,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:06,888 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:27:06,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:27:06,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014514726] [2024-11-10 22:27:06,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014514726] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:27:06,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [162989407] [2024-11-10 22:27:06,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:06,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:27:06,890 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:27:06,892 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) [2024-11-10 22:27:06,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 22:27:06,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:06,956 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:27:06,959 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:27:06,994 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:27:06,994 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:27:06,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [162989407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:27:06,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:27:06,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-10 22:27:06,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700566817] [2024-11-10 22:27:06,995 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:27:06,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 22:27:06,996 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:27:06,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 22:27:06,997 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-10 22:27:07,010 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 58 [2024-11-10 22:27:07,010 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 50 transitions, 129 flow. Second operand has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 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) [2024-11-10 22:27:07,010 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:27:07,010 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 58 [2024-11-10 22:27:07,011 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:27:07,233 INFO L124 PetriNetUnfolderBase]: 1238/1977 cut-off events. [2024-11-10 22:27:07,233 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-11-10 22:27:07,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3874 conditions, 1977 events. 1238/1977 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 12557 event pairs, 1060 based on Foata normal form. 1/1429 useless extension candidates. Maximal degree in co-relation 3845. Up to 1797 conditions per place. [2024-11-10 22:27:07,242 INFO L140 encePairwiseOnDemand]: 53/58 looper letters, 26 selfloop transitions, 7 changer transitions 0/49 dead transitions. [2024-11-10 22:27:07,243 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 49 transitions, 191 flow [2024-11-10 22:27:07,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-10 22:27:07,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-10 22:27:07,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 148 transitions. [2024-11-10 22:27:07,246 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42528735632183906 [2024-11-10 22:27:07,246 INFO L175 Difference]: Start difference. First operand has 54 places, 50 transitions, 129 flow. Second operand 6 states and 148 transitions. [2024-11-10 22:27:07,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 49 transitions, 191 flow [2024-11-10 22:27:07,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 49 transitions, 188 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:27:07,250 INFO L231 Difference]: Finished difference. Result has 57 places, 49 transitions, 136 flow [2024-11-10 22:27:07,250 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=136, PETRI_PLACES=57, PETRI_TRANSITIONS=49} [2024-11-10 22:27:07,251 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 0 predicate places. [2024-11-10 22:27:07,251 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 49 transitions, 136 flow [2024-11-10 22:27:07,251 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 19.833333333333332) internal successors, (119), 6 states have internal predecessors, (119), 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) [2024-11-10 22:27:07,251 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:27:07,251 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1] [2024-11-10 22:27:07,283 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-10 22:27:07,452 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:27:07,453 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-10 22:27:07,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:27:07,453 INFO L85 PathProgramCache]: Analyzing trace with hash -744902474, now seen corresponding path program 1 times [2024-11-10 22:27:07,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:27:07,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867821726] [2024-11-10 22:27:07,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:07,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:27:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:07,522 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:27:07,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:27:07,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867821726] [2024-11-10 22:27:07,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867821726] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:27:07,524 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817145750] [2024-11-10 22:27:07,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:07,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:27:07,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:27:07,525 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) [2024-11-10 22:27:07,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-10 22:27:07,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:07,576 INFO L255 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-10 22:27:07,577 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:27:07,601 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:27:07,602 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:27:07,634 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:27:07,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817145750] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:27:07,635 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:27:07,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 10 [2024-11-10 22:27:07,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [445032112] [2024-11-10 22:27:07,635 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:27:07,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-10 22:27:07,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:27:07,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-10 22:27:07,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-10 22:27:07,655 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 58 [2024-11-10 22:27:07,655 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 49 transitions, 136 flow. Second operand has 12 states, 12 states have (on average 20.083333333333332) internal successors, (241), 12 states have internal predecessors, (241), 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) [2024-11-10 22:27:07,655 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:27:07,655 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 58 [2024-11-10 22:27:07,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:27:07,872 INFO L124 PetriNetUnfolderBase]: 1241/1995 cut-off events. [2024-11-10 22:27:07,872 INFO L125 PetriNetUnfolderBase]: For 58/58 co-relation queries the response was YES. [2024-11-10 22:27:07,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3924 conditions, 1995 events. 1241/1995 cut-off events. For 58/58 co-relation queries the response was YES. Maximal size of possible extension queue 213. Compared 12780 event pairs, 1060 based on Foata normal form. 3/1450 useless extension candidates. Maximal degree in co-relation 3846. Up to 1804 conditions per place. [2024-11-10 22:27:07,881 INFO L140 encePairwiseOnDemand]: 53/58 looper letters, 29 selfloop transitions, 13 changer transitions 0/58 dead transitions. [2024-11-10 22:27:07,881 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 58 transitions, 274 flow [2024-11-10 22:27:07,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 22:27:07,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-10 22:27:07,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 235 transitions. [2024-11-10 22:27:07,884 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4051724137931034 [2024-11-10 22:27:07,884 INFO L175 Difference]: Start difference. First operand has 57 places, 49 transitions, 136 flow. Second operand 10 states and 235 transitions. [2024-11-10 22:27:07,885 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 58 transitions, 274 flow [2024-11-10 22:27:07,886 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 58 transitions, 244 flow, removed 8 selfloop flow, removed 4 redundant places. [2024-11-10 22:27:07,888 INFO L231 Difference]: Finished difference. Result has 65 places, 58 transitions, 204 flow [2024-11-10 22:27:07,888 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=121, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=204, PETRI_PLACES=65, PETRI_TRANSITIONS=58} [2024-11-10 22:27:07,889 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 8 predicate places. [2024-11-10 22:27:07,889 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 58 transitions, 204 flow [2024-11-10 22:27:07,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 20.083333333333332) internal successors, (241), 12 states have internal predecessors, (241), 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) [2024-11-10 22:27:07,889 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:27:07,890 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:27:07,903 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-10 22:27:08,090 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-10 22:27:08,091 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-10 22:27:08,091 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:27:08,091 INFO L85 PathProgramCache]: Analyzing trace with hash -1799403456, now seen corresponding path program 1 times [2024-11-10 22:27:08,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:27:08,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566381814] [2024-11-10 22:27:08,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:08,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:27:08,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:08,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:27:08,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:27:08,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566381814] [2024-11-10 22:27:08,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566381814] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:27:08,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:27:08,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:27:08,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1915741707] [2024-11-10 22:27:08,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:27:08,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 22:27:08,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:27:08,195 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 22:27:08,195 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 22:27:08,197 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 58 [2024-11-10 22:27:08,197 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 58 transitions, 204 flow. Second operand has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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) [2024-11-10 22:27:08,198 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:27:08,198 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 58 [2024-11-10 22:27:08,198 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:27:08,411 INFO L124 PetriNetUnfolderBase]: 1278/2136 cut-off events. [2024-11-10 22:27:08,411 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2024-11-10 22:27:08,414 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4178 conditions, 2136 events. 1278/2136 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 185. Compared 13471 event pairs, 983 based on Foata normal form. 31/1647 useless extension candidates. Maximal degree in co-relation 4139. Up to 1540 conditions per place. [2024-11-10 22:27:08,422 INFO L140 encePairwiseOnDemand]: 46/58 looper letters, 55 selfloop transitions, 5 changer transitions 0/76 dead transitions. [2024-11-10 22:27:08,422 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 76 transitions, 366 flow [2024-11-10 22:27:08,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 22:27:08,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-10 22:27:08,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 158 transitions. [2024-11-10 22:27:08,423 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5448275862068965 [2024-11-10 22:27:08,423 INFO L175 Difference]: Start difference. First operand has 65 places, 58 transitions, 204 flow. Second operand 5 states and 158 transitions. [2024-11-10 22:27:08,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 76 transitions, 366 flow [2024-11-10 22:27:08,424 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 76 transitions, 355 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-11-10 22:27:08,425 INFO L231 Difference]: Finished difference. Result has 70 places, 60 transitions, 233 flow [2024-11-10 22:27:08,425 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=193, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=233, PETRI_PLACES=70, PETRI_TRANSITIONS=60} [2024-11-10 22:27:08,425 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 13 predicate places. [2024-11-10 22:27:08,426 INFO L471 AbstractCegarLoop]: Abstraction has has 70 places, 60 transitions, 233 flow [2024-11-10 22:27:08,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.5) internal successors, (86), 4 states have internal predecessors, (86), 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) [2024-11-10 22:27:08,426 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:27:08,426 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:27:08,427 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 22:27:08,427 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-10 22:27:08,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:27:08,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1087360544, now seen corresponding path program 1 times [2024-11-10 22:27:08,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:27:08,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808070605] [2024-11-10 22:27:08,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:08,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:27:08,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:08,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:27:08,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:27:08,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808070605] [2024-11-10 22:27:08,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808070605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:27:08,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:27:08,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 22:27:08,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128858365] [2024-11-10 22:27:08,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:27:08,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:27:08,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:27:08,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:27:08,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:27:08,468 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 58 [2024-11-10 22:27:08,468 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 60 transitions, 233 flow. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2024-11-10 22:27:08,468 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:27:08,468 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 58 [2024-11-10 22:27:08,468 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:27:08,603 INFO L124 PetriNetUnfolderBase]: 1117/1872 cut-off events. [2024-11-10 22:27:08,603 INFO L125 PetriNetUnfolderBase]: For 537/636 co-relation queries the response was YES. [2024-11-10 22:27:08,606 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4217 conditions, 1872 events. 1117/1872 cut-off events. For 537/636 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 11788 event pairs, 936 based on Foata normal form. 97/1515 useless extension candidates. Maximal degree in co-relation 4176. Up to 1650 conditions per place. [2024-11-10 22:27:08,611 INFO L140 encePairwiseOnDemand]: 56/58 looper letters, 38 selfloop transitions, 1 changer transitions 2/58 dead transitions. [2024-11-10 22:27:08,611 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 58 transitions, 303 flow [2024-11-10 22:27:08,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:27:08,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:27:08,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 92 transitions. [2024-11-10 22:27:08,616 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5287356321839081 [2024-11-10 22:27:08,616 INFO L175 Difference]: Start difference. First operand has 70 places, 60 transitions, 233 flow. Second operand 3 states and 92 transitions. [2024-11-10 22:27:08,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 58 transitions, 303 flow [2024-11-10 22:27:08,617 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 58 transitions, 299 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:27:08,617 INFO L231 Difference]: Finished difference. Result has 69 places, 56 transitions, 209 flow [2024-11-10 22:27:08,618 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=219, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=209, PETRI_PLACES=69, PETRI_TRANSITIONS=56} [2024-11-10 22:27:08,620 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 12 predicate places. [2024-11-10 22:27:08,621 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 56 transitions, 209 flow [2024-11-10 22:27:08,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 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) [2024-11-10 22:27:08,621 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:27:08,621 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:27:08,621 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-10 22:27:08,621 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-10 22:27:08,621 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:27:08,621 INFO L85 PathProgramCache]: Analyzing trace with hash 561929349, now seen corresponding path program 1 times [2024-11-10 22:27:08,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:27:08,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766305081] [2024-11-10 22:27:08,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:08,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:27:08,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:08,706 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:27:08,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:27:08,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766305081] [2024-11-10 22:27:08,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [766305081] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:27:08,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578491507] [2024-11-10 22:27:08,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:08,707 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:27:08,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:27:08,709 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) [2024-11-10 22:27:08,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-10 22:27:08,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:08,762 INFO L255 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-10 22:27:08,763 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:27:08,784 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:27:08,785 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-10 22:27:08,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578491507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:27:08,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-10 22:27:08,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [4] total 5 [2024-11-10 22:27:08,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591094871] [2024-11-10 22:27:08,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:27:08,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:27:08,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:27:08,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:27:08,786 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-10 22:27:08,787 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 21 out of 58 [2024-11-10 22:27:08,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 56 transitions, 209 flow. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2024-11-10 22:27:08,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:27:08,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 21 of 58 [2024-11-10 22:27:08,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:27:08,870 INFO L124 PetriNetUnfolderBase]: 467/837 cut-off events. [2024-11-10 22:27:08,870 INFO L125 PetriNetUnfolderBase]: For 198/217 co-relation queries the response was YES. [2024-11-10 22:27:08,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1790 conditions, 837 events. 467/837 cut-off events. For 198/217 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 4560 event pairs, 378 based on Foata normal form. 0/746 useless extension candidates. Maximal degree in co-relation 1775. Up to 706 conditions per place. [2024-11-10 22:27:08,873 INFO L140 encePairwiseOnDemand]: 53/58 looper letters, 33 selfloop transitions, 1 changer transitions 1/52 dead transitions. [2024-11-10 22:27:08,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 52 transitions, 263 flow [2024-11-10 22:27:08,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:27:08,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:27:08,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 91 transitions. [2024-11-10 22:27:08,875 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5229885057471264 [2024-11-10 22:27:08,875 INFO L175 Difference]: Start difference. First operand has 69 places, 56 transitions, 209 flow. Second operand 3 states and 91 transitions. [2024-11-10 22:27:08,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 52 transitions, 263 flow [2024-11-10 22:27:08,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 52 transitions, 260 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 22:27:08,877 INFO L231 Difference]: Finished difference. Result has 63 places, 51 transitions, 190 flow [2024-11-10 22:27:08,877 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=190, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=190, PETRI_PLACES=63, PETRI_TRANSITIONS=51} [2024-11-10 22:27:08,878 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 6 predicate places. [2024-11-10 22:27:08,879 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 51 transitions, 190 flow [2024-11-10 22:27:08,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2024-11-10 22:27:08,879 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:27:08,879 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:27:08,891 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-10 22:27:09,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:27:09,084 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-10 22:27:09,084 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:27:09,084 INFO L85 PathProgramCache]: Analyzing trace with hash -2080156671, now seen corresponding path program 1 times [2024-11-10 22:27:09,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:27:09,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010303009] [2024-11-10 22:27:09,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:09,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:27:09,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:09,120 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:27:09,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:27:09,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010303009] [2024-11-10 22:27:09,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010303009] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:27:09,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:27:09,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 22:27:09,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314407698] [2024-11-10 22:27:09,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:27:09,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:27:09,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:27:09,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:27:09,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:27:09,125 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 58 [2024-11-10 22:27:09,125 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 51 transitions, 190 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2024-11-10 22:27:09,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:27:09,125 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 58 [2024-11-10 22:27:09,125 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:27:09,193 INFO L124 PetriNetUnfolderBase]: 467/805 cut-off events. [2024-11-10 22:27:09,193 INFO L125 PetriNetUnfolderBase]: For 196/215 co-relation queries the response was YES. [2024-11-10 22:27:09,196 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1758 conditions, 805 events. 467/805 cut-off events. For 196/215 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4161 event pairs, 378 based on Foata normal form. 36/766 useless extension candidates. Maximal degree in co-relation 1743. Up to 706 conditions per place. [2024-11-10 22:27:09,198 INFO L140 encePairwiseOnDemand]: 56/58 looper letters, 34 selfloop transitions, 1 changer transitions 0/50 dead transitions. [2024-11-10 22:27:09,198 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 50 transitions, 258 flow [2024-11-10 22:27:09,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:27:09,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:27:09,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 82 transitions. [2024-11-10 22:27:09,200 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.47126436781609193 [2024-11-10 22:27:09,200 INFO L175 Difference]: Start difference. First operand has 63 places, 51 transitions, 190 flow. Second operand 3 states and 82 transitions. [2024-11-10 22:27:09,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 50 transitions, 258 flow [2024-11-10 22:27:09,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 50 transitions, 257 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:27:09,201 INFO L231 Difference]: Finished difference. Result has 62 places, 50 transitions, 189 flow [2024-11-10 22:27:09,202 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=187, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=189, PETRI_PLACES=62, PETRI_TRANSITIONS=50} [2024-11-10 22:27:09,202 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 5 predicate places. [2024-11-10 22:27:09,203 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 50 transitions, 189 flow [2024-11-10 22:27:09,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2024-11-10 22:27:09,204 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:27:09,204 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:27:09,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-10 22:27:09,204 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-10 22:27:09,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:27:09,205 INFO L85 PathProgramCache]: Analyzing trace with hash -60346865, now seen corresponding path program 1 times [2024-11-10 22:27:09,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:27:09,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183752476] [2024-11-10 22:27:09,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:09,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:27:09,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:09,236 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-10 22:27:09,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:27:09,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183752476] [2024-11-10 22:27:09,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183752476] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 22:27:09,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 22:27:09,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 22:27:09,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880548683] [2024-11-10 22:27:09,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 22:27:09,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 22:27:09,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:27:09,238 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 22:27:09,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 22:27:09,243 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 58 [2024-11-10 22:27:09,243 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 50 transitions, 189 flow. Second operand has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2024-11-10 22:27:09,243 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:27:09,243 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 58 [2024-11-10 22:27:09,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:27:09,316 INFO L124 PetriNetUnfolderBase]: 331/693 cut-off events. [2024-11-10 22:27:09,317 INFO L125 PetriNetUnfolderBase]: For 166/185 co-relation queries the response was YES. [2024-11-10 22:27:09,318 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1434 conditions, 693 events. 331/693 cut-off events. For 166/185 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 3731 event pairs, 148 based on Foata normal form. 56/711 useless extension candidates. Maximal degree in co-relation 1418. Up to 323 conditions per place. [2024-11-10 22:27:09,318 INFO L140 encePairwiseOnDemand]: 56/58 looper letters, 11 selfloop transitions, 0 changer transitions 48/62 dead transitions. [2024-11-10 22:27:09,318 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 62 transitions, 313 flow [2024-11-10 22:27:09,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 22:27:09,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 22:27:09,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 94 transitions. [2024-11-10 22:27:09,320 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5402298850574713 [2024-11-10 22:27:09,320 INFO L175 Difference]: Start difference. First operand has 62 places, 50 transitions, 189 flow. Second operand 3 states and 94 transitions. [2024-11-10 22:27:09,320 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 62 transitions, 313 flow [2024-11-10 22:27:09,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 62 transitions, 312 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-10 22:27:09,322 INFO L231 Difference]: Finished difference. Result has 62 places, 14 transitions, 90 flow [2024-11-10 22:27:09,322 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=186, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=90, PETRI_PLACES=62, PETRI_TRANSITIONS=14} [2024-11-10 22:27:09,323 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, 5 predicate places. [2024-11-10 22:27:09,324 INFO L471 AbstractCegarLoop]: Abstraction has has 62 places, 14 transitions, 90 flow [2024-11-10 22:27:09,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.666666666666668) internal successors, (68), 3 states have internal predecessors, (68), 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) [2024-11-10 22:27:09,324 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 22:27:09,324 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1] [2024-11-10 22:27:09,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-10 22:27:09,324 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 22 more)] === [2024-11-10 22:27:09,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 22:27:09,325 INFO L85 PathProgramCache]: Analyzing trace with hash -270545529, now seen corresponding path program 2 times [2024-11-10 22:27:09,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 22:27:09,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742468852] [2024-11-10 22:27:09,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 22:27:09,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 22:27:09,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 22:27:09,452 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 22:27:09,452 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 22:27:09,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1742468852] [2024-11-10 22:27:09,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1742468852] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 22:27:09,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45361151] [2024-11-10 22:27:09,453 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-10 22:27:09,453 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:27:09,453 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 22:27:09,456 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) [2024-11-10 22:27:09,457 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-10 22:27:09,508 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-10 22:27:09,508 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-10 22:27:09,508 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-10 22:27:09,509 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-10 22:27:09,563 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-10 22:27:09,563 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-10 22:27:09,594 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-10 22:27:09,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45361151] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-10 22:27:09,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-10 22:27:09,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 2, 2] total 12 [2024-11-10 22:27:09,595 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29790382] [2024-11-10 22:27:09,595 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-10 22:27:09,596 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-10 22:27:09,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 22:27:09,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-10 22:27:09,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2024-11-10 22:27:09,614 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 58 [2024-11-10 22:27:09,614 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 14 transitions, 90 flow. Second operand has 14 states, 14 states have (on average 19.142857142857142) internal successors, (268), 14 states have internal predecessors, (268), 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) [2024-11-10 22:27:09,614 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 22:27:09,614 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 58 [2024-11-10 22:27:09,614 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 22:27:09,723 INFO L124 PetriNetUnfolderBase]: 1/25 cut-off events. [2024-11-10 22:27:09,723 INFO L125 PetriNetUnfolderBase]: For 69/69 co-relation queries the response was YES. [2024-11-10 22:27:09,723 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82 conditions, 25 events. 1/25 cut-off events. For 69/69 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 1 event pairs, 0 based on Foata normal form. 2/27 useless extension candidates. Maximal degree in co-relation 72. Up to 7 conditions per place. [2024-11-10 22:27:09,723 INFO L140 encePairwiseOnDemand]: 54/58 looper letters, 0 selfloop transitions, 0 changer transitions 15/15 dead transitions. [2024-11-10 22:27:09,723 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 15 transitions, 120 flow [2024-11-10 22:27:09,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-10 22:27:09,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2024-11-10 22:27:09,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 267 transitions. [2024-11-10 22:27:09,725 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3288177339901478 [2024-11-10 22:27:09,725 INFO L175 Difference]: Start difference. First operand has 62 places, 14 transitions, 90 flow. Second operand 14 states and 267 transitions. [2024-11-10 22:27:09,725 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 15 transitions, 120 flow [2024-11-10 22:27:09,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 15 transitions, 106 flow, removed 2 selfloop flow, removed 5 redundant places. [2024-11-10 22:27:09,726 INFO L231 Difference]: Finished difference. Result has 34 places, 0 transitions, 0 flow [2024-11-10 22:27:09,726 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=58, PETRI_DIFFERENCE_MINUEND_FLOW=68, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=13, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=0, PETRI_PLACES=34, PETRI_TRANSITIONS=0} [2024-11-10 22:27:09,727 INFO L277 CegarLoopForPetriNet]: 57 programPoint places, -23 predicate places. [2024-11-10 22:27:09,727 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 0 transitions, 0 flow [2024-11-10 22:27:09,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 19.142857142857142) internal successors, (268), 14 states have internal predecessors, (268), 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) [2024-11-10 22:27:09,731 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 25 remaining) [2024-11-10 22:27:09,732 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 25 remaining) [2024-11-10 22:27:09,732 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 25 remaining) [2024-11-10 22:27:09,732 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 25 remaining) [2024-11-10 22:27:09,732 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 25 remaining) [2024-11-10 22:27:09,732 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 25 remaining) [2024-11-10 22:27:09,732 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 25 remaining) [2024-11-10 22:27:09,732 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 25 remaining) [2024-11-10 22:27:09,733 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 25 remaining) [2024-11-10 22:27:09,733 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 25 remaining) [2024-11-10 22:27:09,733 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 25 remaining) [2024-11-10 22:27:09,733 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 25 remaining) [2024-11-10 22:27:09,733 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 25 remaining) [2024-11-10 22:27:09,733 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 25 remaining) [2024-11-10 22:27:09,734 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 25 remaining) [2024-11-10 22:27:09,734 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 25 remaining) [2024-11-10 22:27:09,734 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 25 remaining) [2024-11-10 22:27:09,735 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 25 remaining) [2024-11-10 22:27:09,735 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 25 remaining) [2024-11-10 22:27:09,735 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err5ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 25 remaining) [2024-11-10 22:27:09,735 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err4ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 25 remaining) [2024-11-10 22:27:09,735 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 25 remaining) [2024-11-10 22:27:09,737 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 25 remaining) [2024-11-10 22:27:09,738 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 25 remaining) [2024-11-10 22:27:09,738 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 25 remaining) [2024-11-10 22:27:09,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-10 22:27:09,938 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 22:27:09,939 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 22:27:09,943 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-10 22:27:09,943 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-10 22:27:09,947 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 10:27:09 BasicIcfg [2024-11-10 22:27:09,947 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-10 22:27:09,947 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-10 22:27:09,947 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-10 22:27:09,947 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-10 22:27:09,947 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:27:05" (3/4) ... [2024-11-10 22:27:09,949 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-10 22:27:09,952 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-10 22:27:09,952 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-10 22:27:09,952 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-10 22:27:09,957 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 74 nodes and edges [2024-11-10 22:27:09,959 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 33 nodes and edges [2024-11-10 22:27:09,959 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2024-11-10 22:27:09,960 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-10 22:27:10,033 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-10 22:27:10,033 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-10 22:27:10,033 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-10 22:27:10,034 INFO L158 Benchmark]: Toolchain (without parser) took 5097.31ms. Allocated memory was 163.6MB in the beginning and 251.7MB in the end (delta: 88.1MB). Free memory was 133.4MB in the beginning and 180.9MB in the end (delta: -47.5MB). Peak memory consumption was 39.3MB. Max. memory is 16.1GB. [2024-11-10 22:27:10,035 INFO L158 Benchmark]: CDTParser took 0.80ms. Allocated memory is still 121.6MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-10 22:27:10,035 INFO L158 Benchmark]: CACSL2BoogieTranslator took 217.18ms. Allocated memory is still 163.6MB. Free memory was 132.7MB in the beginning and 119.6MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-10 22:27:10,035 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.26ms. Allocated memory is still 163.6MB. Free memory was 119.6MB in the beginning and 116.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 22:27:10,036 INFO L158 Benchmark]: Boogie Preprocessor took 35.32ms. Allocated memory is still 163.6MB. Free memory was 116.7MB in the beginning and 114.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-10 22:27:10,036 INFO L158 Benchmark]: IcfgBuilder took 672.81ms. Allocated memory is still 163.6MB. Free memory was 114.6MB in the beginning and 117.6MB in the end (delta: -3.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-10 22:27:10,036 INFO L158 Benchmark]: TraceAbstraction took 4049.71ms. Allocated memory was 163.6MB in the beginning and 251.7MB in the end (delta: 88.1MB). Free memory was 116.6MB in the beginning and 185.8MB in the end (delta: -69.2MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2024-11-10 22:27:10,036 INFO L158 Benchmark]: Witness Printer took 86.42ms. Allocated memory is still 251.7MB. Free memory was 185.8MB in the beginning and 180.9MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-10 22:27:10,037 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.80ms. Allocated memory is still 121.6MB. Free memory is still 85.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 217.18ms. Allocated memory is still 163.6MB. Free memory was 132.7MB in the beginning and 119.6MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 31.26ms. Allocated memory is still 163.6MB. Free memory was 119.6MB in the beginning and 116.7MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.32ms. Allocated memory is still 163.6MB. Free memory was 116.7MB in the beginning and 114.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 672.81ms. Allocated memory is still 163.6MB. Free memory was 114.6MB in the beginning and 117.6MB in the end (delta: -3.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * TraceAbstraction took 4049.71ms. Allocated memory was 163.6MB in the beginning and 251.7MB in the end (delta: 88.1MB). Free memory was 116.6MB in the beginning and 185.8MB in the end (delta: -69.2MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. * Witness Printer took 86.42ms. Allocated memory is still 251.7MB. Free memory was 185.8MB in the beginning and 180.9MB in the end (delta: 4.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 59]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 75]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 75]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 83]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 84]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 86]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 120]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 120]: 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, 90 locations, 25 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: 4.0s, OverallIterations: 9, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 173 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 141 mSDsluCounter, 53 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 781 IncrementalHoareTripleChecker+Invalid, 803 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 15 mSDtfsCounter, 781 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 125 GetRequests, 65 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=233occurred in iteration=4, InterpolantAutomatonStates: 51, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 164 NumberOfCodeBlocks, 148 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 179 ConstructedInterpolants, 0 QuantifiedInterpolants, 573 SizeOfPredicates, 9 NumberOfNonLiveVariables, 314 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 15 InterpolantComputations, 7 PerfectInterpolantSequences, 73/146 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 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-10 22:27:10,060 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE