./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-theta/unwind1-100.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/pthread-theta/unwind1-100.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/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) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', 'd866fedd3df666b1282e36d0ae87b17d0a587658c87dddd4d2314d9586432757'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-theta/unwind1-100.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/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 d866fedd3df666b1282e36d0ae87b17d0a587658c87dddd4d2314d9586432757 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 23:44:09,875 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 23:44:09,947 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 23:44:09,953 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 23:44:09,953 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 23:44:09,975 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 23:44:09,977 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 23:44:09,977 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 23:44:09,978 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 23:44:09,978 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 23:44:09,978 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 23:44:09,978 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 23:44:09,979 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 23:44:09,979 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 23:44:09,979 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 23:44:09,979 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 23:44:09,979 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 23:44:09,980 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 23:44:09,980 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 23:44:09,980 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 23:44:09,980 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 23:44:09,980 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 23:44:09,980 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 23:44:09,980 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 23:44:09,981 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 23:44:09,981 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 23:44:09,981 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 23:44:09,981 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 23:44:09,981 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 23:44:09,981 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 23:44:09,981 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 23:44:09,981 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 23:44:09,981 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 23:44:09,981 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 23:44:09,981 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:44:09,982 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 23:44:09,982 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 23:44:09,982 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 23:44:09,982 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 23:44:09,982 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 23:44:09,982 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 23:44:09,982 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 23:44:09,982 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 23:44:09,983 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 23:44:09,983 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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-jdk21/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 -> d866fedd3df666b1282e36d0ae87b17d0a587658c87dddd4d2314d9586432757 [2024-11-07 23:44:10,213 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 23:44:10,221 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 23:44:10,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 23:44:10,223 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 23:44:10,224 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 23:44:10,225 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-theta/unwind1-100.i [2024-11-07 23:44:11,336 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 23:44:11,543 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 23:44:11,544 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-theta/unwind1-100.i [2024-11-07 23:44:11,558 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c56fb94c6/1a7a6afdceb84f1584a0d0a40342b94b/FLAG1df4ace3b [2024-11-07 23:44:11,573 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c56fb94c6/1a7a6afdceb84f1584a0d0a40342b94b [2024-11-07 23:44:11,575 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 23:44:11,576 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 23:44:11,577 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 23:44:11,578 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 23:44:11,580 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 23:44:11,581 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:44:11" (1/1) ... [2024-11-07 23:44:11,582 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c61d4c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:11, skipping insertion in model container [2024-11-07 23:44:11,582 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:44:11" (1/1) ... [2024-11-07 23:44:11,609 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 23:44:11,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:44:11,858 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 23:44:11,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:44:11,911 INFO L204 MainTranslator]: Completed translation [2024-11-07 23:44:11,911 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:11 WrapperNode [2024-11-07 23:44:11,912 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 23:44:11,912 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 23:44:11,912 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 23:44:11,912 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 23:44:11,917 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:11" (1/1) ... [2024-11-07 23:44:11,923 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:11" (1/1) ... [2024-11-07 23:44:11,936 INFO L138 Inliner]: procedures = 169, calls = 11, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2024-11-07 23:44:11,936 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 23:44:11,937 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 23:44:11,937 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 23:44:11,937 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 23:44:11,943 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:11" (1/1) ... [2024-11-07 23:44:11,943 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:11" (1/1) ... [2024-11-07 23:44:11,944 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:11" (1/1) ... [2024-11-07 23:44:11,954 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 23:44:11,956 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:11" (1/1) ... [2024-11-07 23:44:11,956 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:11" (1/1) ... [2024-11-07 23:44:11,959 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:11" (1/1) ... [2024-11-07 23:44:11,964 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:11" (1/1) ... [2024-11-07 23:44:11,967 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:11" (1/1) ... [2024-11-07 23:44:11,968 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:11" (1/1) ... [2024-11-07 23:44:11,969 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 23:44:11,973 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 23:44:11,973 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 23:44:11,973 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 23:44:11,973 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:11" (1/1) ... [2024-11-07 23:44:11,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:44:11,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:44:11,999 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 23:44:12,002 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 23:44:12,019 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 23:44:12,019 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-07 23:44:12,019 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-07 23:44:12,019 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-07 23:44:12,019 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-07 23:44:12,019 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 23:44:12,019 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 23:44:12,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 23:44:12,020 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-07 23:44:12,130 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 23:44:12,131 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 23:44:12,253 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 23:44:12,253 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 23:44:12,326 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 23:44:12,326 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 23:44:12,327 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:44:12 BoogieIcfgContainer [2024-11-07 23:44:12,327 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 23:44:12,328 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 23:44:12,328 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 23:44:12,331 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 23:44:12,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:44:11" (1/3) ... [2024-11-07 23:44:12,332 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9514d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:44:12, skipping insertion in model container [2024-11-07 23:44:12,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:44:11" (2/3) ... [2024-11-07 23:44:12,332 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9514d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:44:12, skipping insertion in model container [2024-11-07 23:44:12,332 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:44:12" (3/3) ... [2024-11-07 23:44:12,333 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind1-100.i [2024-11-07 23:44:12,342 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 23:44:12,342 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-07 23:44:12,342 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 23:44:12,372 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-07 23:44:12,398 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 32 places, 27 transitions, 68 flow [2024-11-07 23:44:12,416 INFO L124 PetriNetUnfolderBase]: 2/25 cut-off events. [2024-11-07 23:44:12,417 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 23:44:12,423 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34 conditions, 25 events. 2/25 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 53 event pairs, 0 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2024-11-07 23:44:12,424 INFO L82 GeneralOperation]: Start removeDead. Operand has 32 places, 27 transitions, 68 flow [2024-11-07 23:44:12,426 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 28 places, 23 transitions, 55 flow [2024-11-07 23:44:12,433 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:44:12,441 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;@62570bbb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:44:12,441 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-07 23:44:12,445 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:44:12,445 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-11-07 23:44:12,445 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:44:12,445 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:44:12,446 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-07 23:44:12,446 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-07 23:44:12,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:44:12,449 INFO L85 PathProgramCache]: Analyzing trace with hash 214452559, now seen corresponding path program 1 times [2024-11-07 23:44:12,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:44:12,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089455508] [2024-11-07 23:44:12,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:44:12,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:44:12,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:44:12,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:44:12,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:44:12,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089455508] [2024-11-07 23:44:12,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089455508] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:44:12,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:44:12,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:44:12,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1481592647] [2024-11-07 23:44:12,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:44:12,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:44:12,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:44:12,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:44:12,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:44:12,631 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-07 23:44:12,634 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 23 transitions, 55 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-07 23:44:12,634 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:44:12,634 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-07 23:44:12,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:44:12,708 INFO L124 PetriNetUnfolderBase]: 82/192 cut-off events. [2024-11-07 23:44:12,709 INFO L125 PetriNetUnfolderBase]: For 13/13 co-relation queries the response was YES. [2024-11-07 23:44:12,710 INFO L83 FinitePrefix]: Finished finitePrefix Result has 358 conditions, 192 events. 82/192 cut-off events. For 13/13 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 838 event pairs, 66 based on Foata normal form. 10/163 useless extension candidates. Maximal degree in co-relation 328. Up to 144 conditions per place. [2024-11-07 23:44:12,712 INFO L140 encePairwiseOnDemand]: 25/27 looper letters, 14 selfloop transitions, 1 changer transitions 0/22 dead transitions. [2024-11-07 23:44:12,713 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 22 transitions, 83 flow [2024-11-07 23:44:12,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:44:12,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:44:12,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 43 transitions. [2024-11-07 23:44:12,722 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5308641975308642 [2024-11-07 23:44:12,723 INFO L175 Difference]: Start difference. First operand has 28 places, 23 transitions, 55 flow. Second operand 3 states and 43 transitions. [2024-11-07 23:44:12,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 22 transitions, 83 flow [2024-11-07 23:44:12,727 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 22 transitions, 78 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:44:12,729 INFO L231 Difference]: Finished difference. Result has 26 places, 22 transitions, 50 flow [2024-11-07 23:44:12,730 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=50, PETRI_PLACES=26, PETRI_TRANSITIONS=22} [2024-11-07 23:44:12,734 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, -2 predicate places. [2024-11-07 23:44:12,736 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 22 transitions, 50 flow [2024-11-07 23:44:12,736 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-07 23:44:12,737 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:44:12,737 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-07 23:44:12,737 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 23:44:12,737 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-07 23:44:12,739 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:44:12,739 INFO L85 PathProgramCache]: Analyzing trace with hash -1941905028, now seen corresponding path program 1 times [2024-11-07 23:44:12,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:44:12,739 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077488488] [2024-11-07 23:44:12,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:44:12,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:44:12,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:44:12,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:44:12,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:44:12,773 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077488488] [2024-11-07 23:44:12,773 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077488488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:44:12,773 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:44:12,773 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:44:12,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888452833] [2024-11-07 23:44:12,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:44:12,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:44:12,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:44:12,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:44:12,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:44:12,784 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-07 23:44:12,784 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 22 transitions, 50 flow. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-07 23:44:12,784 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:44:12,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-07 23:44:12,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:44:12,872 INFO L124 PetriNetUnfolderBase]: 68/162 cut-off events. [2024-11-07 23:44:12,872 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-07 23:44:12,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 297 conditions, 162 events. 68/162 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 653 event pairs, 54 based on Foata normal form. 8/137 useless extension candidates. Maximal degree in co-relation 291. Up to 120 conditions per place. [2024-11-07 23:44:12,874 INFO L140 encePairwiseOnDemand]: 25/27 looper letters, 13 selfloop transitions, 1 changer transitions 0/21 dead transitions. [2024-11-07 23:44:12,876 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 27 places, 21 transitions, 76 flow [2024-11-07 23:44:12,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:44:12,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:44:12,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 42 transitions. [2024-11-07 23:44:12,877 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5185185185185185 [2024-11-07 23:44:12,877 INFO L175 Difference]: Start difference. First operand has 26 places, 22 transitions, 50 flow. Second operand 3 states and 42 transitions. [2024-11-07 23:44:12,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 27 places, 21 transitions, 76 flow [2024-11-07 23:44:12,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 21 transitions, 75 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:44:12,877 INFO L231 Difference]: Finished difference. Result has 26 places, 21 transitions, 49 flow [2024-11-07 23:44:12,878 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=47, PETRI_DIFFERENCE_MINUEND_PLACES=24, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=20, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=49, PETRI_PLACES=26, PETRI_TRANSITIONS=21} [2024-11-07 23:44:12,878 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, -2 predicate places. [2024-11-07 23:44:12,878 INFO L471 AbstractCegarLoop]: Abstraction has has 26 places, 21 transitions, 49 flow [2024-11-07 23:44:12,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 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) [2024-11-07 23:44:12,878 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:44:12,878 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:44:12,878 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 23:44:12,878 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-07 23:44:12,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:44:12,879 INFO L85 PathProgramCache]: Analyzing trace with hash -72726013, now seen corresponding path program 1 times [2024-11-07 23:44:12,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:44:12,879 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113678588] [2024-11-07 23:44:12,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:44:12,879 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:44:12,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:44:12,992 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:44:12,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:44:12,993 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113678588] [2024-11-07 23:44:12,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113678588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:44:12,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:44:12,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:44:12,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079157545] [2024-11-07 23:44:12,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:44:12,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:44:12,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:44:12,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:44:12,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:44:13,002 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-07 23:44:13,002 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 21 transitions, 49 flow. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2024-11-07 23:44:13,002 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:44:13,002 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-07 23:44:13,002 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:44:13,087 INFO L124 PetriNetUnfolderBase]: 72/157 cut-off events. [2024-11-07 23:44:13,087 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-07 23:44:13,088 INFO L83 FinitePrefix]: Finished finitePrefix Result has 314 conditions, 157 events. 72/157 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 530 event pairs, 18 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 307. Up to 55 conditions per place. [2024-11-07 23:44:13,088 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 15 selfloop transitions, 3 changer transitions 13/36 dead transitions. [2024-11-07 23:44:13,089 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 36 transitions, 144 flow [2024-11-07 23:44:13,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 23:44:13,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 23:44:13,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 78 transitions. [2024-11-07 23:44:13,091 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5777777777777777 [2024-11-07 23:44:13,091 INFO L175 Difference]: Start difference. First operand has 26 places, 21 transitions, 49 flow. Second operand 5 states and 78 transitions. [2024-11-07 23:44:13,091 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 36 transitions, 144 flow [2024-11-07 23:44:13,092 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 36 transitions, 143 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:44:13,093 INFO L231 Difference]: Finished difference. Result has 32 places, 20 transitions, 61 flow [2024-11-07 23:44:13,093 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=61, PETRI_PLACES=32, PETRI_TRANSITIONS=20} [2024-11-07 23:44:13,093 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 4 predicate places. [2024-11-07 23:44:13,093 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 20 transitions, 61 flow [2024-11-07 23:44:13,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 4 states have internal predecessors, (42), 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) [2024-11-07 23:44:13,094 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:44:13,094 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:44:13,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 23:44:13,094 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-07 23:44:13,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:44:13,094 INFO L85 PathProgramCache]: Analyzing trace with hash -492627500, now seen corresponding path program 1 times [2024-11-07 23:44:13,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:44:13,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509559370] [2024-11-07 23:44:13,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:44:13,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:44:13,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:44:13,131 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:44:13,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:44:13,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509559370] [2024-11-07 23:44:13,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509559370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:44:13,132 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:44:13,132 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 23:44:13,132 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312969229] [2024-11-07 23:44:13,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:44:13,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:44:13,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:44:13,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:44:13,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:44:13,137 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-07 23:44:13,138 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 20 transitions, 61 flow. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-11-07 23:44:13,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:44:13,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-07 23:44:13,138 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:44:13,199 INFO L124 PetriNetUnfolderBase]: 50/121 cut-off events. [2024-11-07 23:44:13,199 INFO L125 PetriNetUnfolderBase]: For 25/25 co-relation queries the response was YES. [2024-11-07 23:44:13,202 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277 conditions, 121 events. 50/121 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 328 event pairs, 32 based on Foata normal form. 5/115 useless extension candidates. Maximal degree in co-relation 266. Up to 80 conditions per place. [2024-11-07 23:44:13,203 INFO L140 encePairwiseOnDemand]: 22/27 looper letters, 20 selfloop transitions, 3 changer transitions 0/28 dead transitions. [2024-11-07 23:44:13,203 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 28 transitions, 129 flow [2024-11-07 23:44:13,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:44:13,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:44:13,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 61 transitions. [2024-11-07 23:44:13,205 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5648148148148148 [2024-11-07 23:44:13,205 INFO L175 Difference]: Start difference. First operand has 32 places, 20 transitions, 61 flow. Second operand 4 states and 61 transitions. [2024-11-07 23:44:13,205 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 28 transitions, 129 flow [2024-11-07 23:44:13,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 28 transitions, 115 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-07 23:44:13,206 INFO L231 Difference]: Finished difference. Result has 30 places, 22 transitions, 73 flow [2024-11-07 23:44:13,206 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=73, PETRI_PLACES=30, PETRI_TRANSITIONS=22} [2024-11-07 23:44:13,207 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 2 predicate places. [2024-11-07 23:44:13,207 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 22 transitions, 73 flow [2024-11-07 23:44:13,207 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 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) [2024-11-07 23:44:13,207 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:44:13,207 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:44:13,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 23:44:13,207 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-07 23:44:13,207 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:44:13,207 INFO L85 PathProgramCache]: Analyzing trace with hash 37639074, now seen corresponding path program 1 times [2024-11-07 23:44:13,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:44:13,208 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1394940454] [2024-11-07 23:44:13,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:44:13,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:44:13,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:44:13,287 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:44:13,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:44:13,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1394940454] [2024-11-07 23:44:13,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1394940454] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:44:13,288 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793326277] [2024-11-07 23:44:13,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:44:13,288 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:44:13,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:44:13,290 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:44:13,291 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 23:44:13,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:44:13,345 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:44:13,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:44:13,399 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:44:13,400 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 23:44:13,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793326277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:44:13,400 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-07 23:44:13,400 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-07 23:44:13,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827792346] [2024-11-07 23:44:13,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:44:13,400 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 23:44:13,401 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:44:13,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 23:44:13,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-07 23:44:13,410 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-07 23:44:13,411 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 22 transitions, 73 flow. Second operand has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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) [2024-11-07 23:44:13,411 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:44:13,411 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-07 23:44:13,411 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:44:13,497 INFO L124 PetriNetUnfolderBase]: 45/111 cut-off events. [2024-11-07 23:44:13,497 INFO L125 PetriNetUnfolderBase]: For 45/45 co-relation queries the response was YES. [2024-11-07 23:44:13,498 INFO L83 FinitePrefix]: Finished finitePrefix Result has 270 conditions, 111 events. 45/111 cut-off events. For 45/45 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 285 event pairs, 12 based on Foata normal form. 5/105 useless extension candidates. Maximal degree in co-relation 260. Up to 35 conditions per place. [2024-11-07 23:44:13,498 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 23 selfloop transitions, 5 changer transitions 0/33 dead transitions. [2024-11-07 23:44:13,498 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 33 transitions, 153 flow [2024-11-07 23:44:13,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 23:44:13,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 23:44:13,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 83 transitions. [2024-11-07 23:44:13,499 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5123456790123457 [2024-11-07 23:44:13,499 INFO L175 Difference]: Start difference. First operand has 30 places, 22 transitions, 73 flow. Second operand 6 states and 83 transitions. [2024-11-07 23:44:13,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 33 transitions, 153 flow [2024-11-07 23:44:13,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 33 transitions, 151 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:44:13,500 INFO L231 Difference]: Finished difference. Result has 33 places, 21 transitions, 77 flow [2024-11-07 23:44:13,500 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=77, PETRI_PLACES=33, PETRI_TRANSITIONS=21} [2024-11-07 23:44:13,501 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 5 predicate places. [2024-11-07 23:44:13,501 INFO L471 AbstractCegarLoop]: Abstraction has has 33 places, 21 transitions, 77 flow [2024-11-07 23:44:13,501 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.833333333333334) internal successors, (65), 6 states have internal predecessors, (65), 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) [2024-11-07 23:44:13,501 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:44:13,501 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:44:13,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 23:44:13,701 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:44:13,702 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-07 23:44:13,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:44:13,702 INFO L85 PathProgramCache]: Analyzing trace with hash 1166811537, now seen corresponding path program 1 times [2024-11-07 23:44:13,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:44:13,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [894169160] [2024-11-07 23:44:13,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:44:13,702 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:44:13,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:44:13,763 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:44:13,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:44:13,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [894169160] [2024-11-07 23:44:13,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [894169160] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:44:13,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2107310726] [2024-11-07 23:44:13,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:44:13,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:44:13,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:44:13,766 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:44:13,767 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 23:44:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:44:13,812 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 23:44:13,812 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:44:13,831 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:44:13,831 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:44:13,863 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:44:13,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2107310726] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:44:13,863 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:44:13,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-07 23:44:13,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724284284] [2024-11-07 23:44:13,864 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:44:13,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 23:44:13,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:44:13,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 23:44:13,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-07 23:44:13,876 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 27 [2024-11-07 23:44:13,876 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 21 transitions, 77 flow. Second operand has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 12 states have internal predecessors, (127), 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) [2024-11-07 23:44:13,876 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:44:13,876 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 27 [2024-11-07 23:44:13,876 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:44:13,980 INFO L124 PetriNetUnfolderBase]: 75/186 cut-off events. [2024-11-07 23:44:13,981 INFO L125 PetriNetUnfolderBase]: For 142/142 co-relation queries the response was YES. [2024-11-07 23:44:13,981 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 186 events. 75/186 cut-off events. For 142/142 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 485 event pairs, 27 based on Foata normal form. 15/195 useless extension candidates. Maximal degree in co-relation 475. Up to 70 conditions per place. [2024-11-07 23:44:13,982 INFO L140 encePairwiseOnDemand]: 23/27 looper letters, 37 selfloop transitions, 9 changer transitions 0/51 dead transitions. [2024-11-07 23:44:13,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 51 transitions, 261 flow [2024-11-07 23:44:13,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 23:44:13,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 23:44:13,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 139 transitions. [2024-11-07 23:44:13,983 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5148148148148148 [2024-11-07 23:44:13,983 INFO L175 Difference]: Start difference. First operand has 33 places, 21 transitions, 77 flow. Second operand 10 states and 139 transitions. [2024-11-07 23:44:13,983 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 51 transitions, 261 flow [2024-11-07 23:44:13,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 51 transitions, 235 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-07 23:44:13,984 INFO L231 Difference]: Finished difference. Result has 40 places, 27 transitions, 121 flow [2024-11-07 23:44:13,985 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=63, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=121, PETRI_PLACES=40, PETRI_TRANSITIONS=27} [2024-11-07 23:44:13,985 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 12 predicate places. [2024-11-07 23:44:13,985 INFO L471 AbstractCegarLoop]: Abstraction has has 40 places, 27 transitions, 121 flow [2024-11-07 23:44:13,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.583333333333334) internal successors, (127), 12 states have internal predecessors, (127), 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) [2024-11-07 23:44:13,985 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:44:13,985 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:44:13,998 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 23:44:14,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:44:14,186 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 8 more)] === [2024-11-07 23:44:14,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:44:14,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1977723105, now seen corresponding path program 2 times [2024-11-07 23:44:14,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:44:14,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169734144] [2024-11-07 23:44:14,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:44:14,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:44:14,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:44:14,329 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:44:14,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:44:14,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169734144] [2024-11-07 23:44:14,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169734144] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 23:44:14,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808532040] [2024-11-07 23:44:14,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 23:44:14,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:44:14,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:44:14,332 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 23:44:14,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 23:44:14,375 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 23:44:14,375 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 23:44:14,375 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 23:44:14,376 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 23:44:14,436 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-07 23:44:14,436 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 23:44:14,510 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-07 23:44:14,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808532040] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 23:44:14,510 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 23:44:14,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 19 [2024-11-07 23:44:14,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078227345] [2024-11-07 23:44:14,510 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 23:44:14,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-07 23:44:14,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:44:14,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-07 23:44:14,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=309, Unknown=0, NotChecked=0, Total=380 [2024-11-07 23:44:14,573 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 4 out of 27 [2024-11-07 23:44:14,573 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 27 transitions, 121 flow. Second operand has 20 states, 20 states have (on average 6.1) internal successors, (122), 20 states have internal predecessors, (122), 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) [2024-11-07 23:44:14,573 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:44:14,573 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 4 of 27 [2024-11-07 23:44:14,573 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:44:15,042 INFO L124 PetriNetUnfolderBase]: 154/376 cut-off events. [2024-11-07 23:44:15,042 INFO L125 PetriNetUnfolderBase]: For 576/576 co-relation queries the response was YES. [2024-11-07 23:44:15,043 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1016 conditions, 376 events. 154/376 cut-off events. For 576/576 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1367 event pairs, 18 based on Foata normal form. 20/391 useless extension candidates. Maximal degree in co-relation 1004. Up to 61 conditions per place. [2024-11-07 23:44:15,043 INFO L140 encePairwiseOnDemand]: 21/27 looper letters, 0 selfloop transitions, 0 changer transitions 118/118 dead transitions. [2024-11-07 23:44:15,043 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 118 transitions, 620 flow [2024-11-07 23:44:15,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-07 23:44:15,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2024-11-07 23:44:15,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 232 transitions. [2024-11-07 23:44:15,045 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.30687830687830686 [2024-11-07 23:44:15,045 INFO L175 Difference]: Start difference. First operand has 40 places, 27 transitions, 121 flow. Second operand 28 states and 232 transitions. [2024-11-07 23:44:15,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 118 transitions, 620 flow [2024-11-07 23:44:15,047 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 118 transitions, 576 flow, removed 10 selfloop flow, removed 6 redundant places. [2024-11-07 23:44:15,047 INFO L231 Difference]: Finished difference. Result has 60 places, 0 transitions, 0 flow [2024-11-07 23:44:15,047 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=27, PETRI_DIFFERENCE_MINUEND_FLOW=91, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=0, PETRI_PLACES=60, PETRI_TRANSITIONS=0} [2024-11-07 23:44:15,048 INFO L277 CegarLoopForPetriNet]: 28 programPoint places, 32 predicate places. [2024-11-07 23:44:15,048 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 0 transitions, 0 flow [2024-11-07 23:44:15,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 6.1) internal successors, (122), 20 states have internal predecessors, (122), 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) [2024-11-07 23:44:15,050 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 10 remaining) [2024-11-07 23:44:15,050 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 10 remaining) [2024-11-07 23:44:15,050 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-07 23:44:15,050 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-07 23:44:15,050 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 10 remaining) [2024-11-07 23:44:15,050 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 10 remaining) [2024-11-07 23:44:15,050 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-07 23:44:15,050 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-07 23:44:15,050 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-07 23:44:15,050 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-11-07 23:44:15,063 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-07 23:44:15,251 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 23:44:15,251 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2024-11-07 23:44:15,255 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 23:44:15,255 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 23:44:15,258 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 11:44:15 BasicIcfg [2024-11-07 23:44:15,258 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 23:44:15,258 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 23:44:15,258 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 23:44:15,259 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 23:44:15,259 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:44:12" (3/4) ... [2024-11-07 23:44:15,260 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-07 23:44:15,261 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f1 [2024-11-07 23:44:15,261 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f2 [2024-11-07 23:44:15,263 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 32 nodes and edges [2024-11-07 23:44:15,263 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-07 23:44:15,263 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-11-07 23:44:15,264 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-07 23:44:15,306 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 23:44:15,306 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-07 23:44:15,306 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 23:44:15,307 INFO L158 Benchmark]: Toolchain (without parser) took 3730.34ms. Allocated memory is still 100.7MB. Free memory was 75.0MB in the beginning and 31.0MB in the end (delta: 44.0MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. [2024-11-07 23:44:15,307 INFO L158 Benchmark]: CDTParser took 0.75ms. Allocated memory is still 83.9MB. Free memory is still 47.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:44:15,307 INFO L158 Benchmark]: CACSL2BoogieTranslator took 334.67ms. Allocated memory is still 100.7MB. Free memory was 74.8MB in the beginning and 55.2MB in the end (delta: 19.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 23:44:15,307 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.84ms. Allocated memory is still 100.7MB. Free memory was 55.2MB in the beginning and 53.5MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 23:44:15,307 INFO L158 Benchmark]: Boogie Preprocessor took 35.45ms. Allocated memory is still 100.7MB. Free memory was 53.5MB in the beginning and 52.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:44:15,307 INFO L158 Benchmark]: RCFGBuilder took 354.20ms. Allocated memory is still 100.7MB. Free memory was 51.9MB in the beginning and 70.9MB in the end (delta: -19.0MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2024-11-07 23:44:15,311 INFO L158 Benchmark]: TraceAbstraction took 2929.90ms. Allocated memory is still 100.7MB. Free memory was 70.5MB in the beginning and 35.5MB in the end (delta: 35.0MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. [2024-11-07 23:44:15,311 INFO L158 Benchmark]: Witness Printer took 47.66ms. Allocated memory is still 100.7MB. Free memory was 35.5MB in the beginning and 31.0MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:44:15,312 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75ms. Allocated memory is still 83.9MB. Free memory is still 47.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 334.67ms. Allocated memory is still 100.7MB. Free memory was 74.8MB in the beginning and 55.2MB in the end (delta: 19.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 23.84ms. Allocated memory is still 100.7MB. Free memory was 55.2MB in the beginning and 53.5MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.45ms. Allocated memory is still 100.7MB. Free memory was 53.5MB in the beginning and 52.1MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 354.20ms. Allocated memory is still 100.7MB. Free memory was 51.9MB in the beginning and 70.9MB in the end (delta: -19.0MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. * TraceAbstraction took 2929.90ms. Allocated memory is still 100.7MB. Free memory was 70.5MB in the beginning and 35.5MB in the end (delta: 35.0MB). Peak memory consumption was 36.4MB. Max. memory is 16.1GB. * Witness Printer took 47.66ms. Allocated memory is still 100.7MB. Free memory was 35.5MB in the beginning and 31.0MB in the end (delta: 4.5MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 760]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: 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 5 procedures, 45 locations, 10 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: 2.9s, OverallIterations: 7, TraceHistogramMax: 5, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 556 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 517 mSDsluCounter, 234 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 222 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 665 IncrementalHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 12 mSDtfsCounter, 665 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 147 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 462 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=121occurred in iteration=6, InterpolantAutomatonStates: 59, 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, 0.7s InterpolantComputationTime, 128 NumberOfCodeBlocks, 116 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 153 ConstructedInterpolants, 0 QuantifiedInterpolants, 363 SizeOfPredicates, 9 NumberOfNonLiveVariables, 235 ConjunctsInSsa, 16 ConjunctsInUnsatCore, 12 InterpolantComputations, 5 PerfectInterpolantSequences, 46/103 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-07 23:44:15,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/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