./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/rfi000_tso.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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-wmm/rfi000_tso.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '5128c539cd3051e20c09e1924eb0951d5be697be251e10d3c281464ed4c436cd'] 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-wmm/rfi000_tso.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 5128c539cd3051e20c09e1924eb0951d5be697be251e10d3c281464ed4c436cd --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 11:13:16,822 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 11:13:16,932 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 11:13:16,937 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 11:13:16,938 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 11:13:16,970 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 11:13:16,972 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 11:13:16,972 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 11:13:16,972 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 11:13:16,973 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 11:13:16,973 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 11:13:16,973 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 11:13:16,975 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 11:13:16,975 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 11:13:16,975 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 11:13:16,975 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 11:13:16,975 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 11:13:16,975 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 11:13:16,975 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 11:13:16,975 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 11:13:16,975 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 11:13:16,976 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 11:13:16,976 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 11:13:16,976 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 11:13:16,976 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 11:13:16,976 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 11:13:16,976 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 11:13:16,977 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 11:13:16,977 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 11:13:16,977 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 11:13:16,977 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 11:13:16,977 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 11:13:16,978 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:13:16,978 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 11:13:16,978 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 11:13:16,978 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 11:13:16,978 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 11:13:16,979 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 11:13:16,979 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 11:13:16,979 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 11:13:16,979 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 11:13:16,979 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 11:13:16,979 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 ! call(reach_error())) ) 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 -> 5128c539cd3051e20c09e1924eb0951d5be697be251e10d3c281464ed4c436cd [2024-11-07 11:13:17,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 11:13:17,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 11:13:17,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 11:13:17,316 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 11:13:17,316 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 11:13:17,317 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/rfi000_tso.i [2024-11-07 11:13:18,635 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 11:13:19,006 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 11:13:19,007 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi000_tso.i [2024-11-07 11:13:19,029 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d305250b3/0b6c982340714c3e92d8941afc560478/FLAG0e52ad037 [2024-11-07 11:13:19,207 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d305250b3/0b6c982340714c3e92d8941afc560478 [2024-11-07 11:13:19,210 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 11:13:19,212 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 11:13:19,213 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 11:13:19,213 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 11:13:19,218 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 11:13:19,219 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:13:19" (1/1) ... [2024-11-07 11:13:19,221 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32a76503 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:19, skipping insertion in model container [2024-11-07 11:13:19,221 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:13:19" (1/1) ... [2024-11-07 11:13:19,265 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 11:13:19,414 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi000_tso.i[944,957] [2024-11-07 11:13:19,605 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:13:19,616 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 11:13:19,628 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/rfi000_tso.i[944,957] [2024-11-07 11:13:19,696 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:13:19,730 INFO L204 MainTranslator]: Completed translation [2024-11-07 11:13:19,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:19 WrapperNode [2024-11-07 11:13:19,731 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 11:13:19,732 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 11:13:19,732 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 11:13:19,732 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 11:13:19,738 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:19" (1/1) ... [2024-11-07 11:13:19,750 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:19" (1/1) ... [2024-11-07 11:13:19,774 INFO L138 Inliner]: procedures = 174, calls = 37, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 167 [2024-11-07 11:13:19,775 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 11:13:19,775 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 11:13:19,775 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 11:13:19,775 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 11:13:19,783 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:19" (1/1) ... [2024-11-07 11:13:19,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:19" (1/1) ... [2024-11-07 11:13:19,786 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:19" (1/1) ... [2024-11-07 11:13:19,806 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 11:13:19,807 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:19" (1/1) ... [2024-11-07 11:13:19,807 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:19" (1/1) ... [2024-11-07 11:13:19,814 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:19" (1/1) ... [2024-11-07 11:13:19,816 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:19" (1/1) ... [2024-11-07 11:13:19,818 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:19" (1/1) ... [2024-11-07 11:13:19,820 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:19" (1/1) ... [2024-11-07 11:13:19,822 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 11:13:19,823 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 11:13:19,823 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 11:13:19,823 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 11:13:19,824 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:19" (1/1) ... [2024-11-07 11:13:19,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:13:19,843 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:13:19,857 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 11:13:19,860 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 11:13:19,886 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-07 11:13:19,886 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 11:13:19,887 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-07 11:13:19,888 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-07 11:13:19,888 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-07 11:13:19,888 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-07 11:13:19,888 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 11:13:19,888 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-07 11:13:19,888 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 11:13:19,888 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 11:13:19,890 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 11:13:20,065 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 11:13:20,066 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 11:13:20,469 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 11:13:20,469 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 11:13:20,796 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 11:13:20,797 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 11:13:20,798 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:13:20 BoogieIcfgContainer [2024-11-07 11:13:20,798 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 11:13:20,800 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 11:13:20,800 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 11:13:20,806 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 11:13:20,806 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:13:19" (1/3) ... [2024-11-07 11:13:20,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557a808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:13:20, skipping insertion in model container [2024-11-07 11:13:20,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:13:19" (2/3) ... [2024-11-07 11:13:20,807 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@557a808 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:13:20, skipping insertion in model container [2024-11-07 11:13:20,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:13:20" (3/3) ... [2024-11-07 11:13:20,808 INFO L112 eAbstractionObserver]: Analyzing ICFG rfi000_tso.i [2024-11-07 11:13:20,827 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 11:13:20,828 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 11:13:20,828 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 11:13:20,892 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-07 11:13:20,931 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 32 transitions, 72 flow [2024-11-07 11:13:20,963 INFO L124 PetriNetUnfolderBase]: 1/30 cut-off events. [2024-11-07 11:13:20,965 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 11:13:20,968 INFO L83 FinitePrefix]: Finished finitePrefix Result has 37 conditions, 30 events. 1/30 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 48 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2024-11-07 11:13:20,969 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 32 transitions, 72 flow [2024-11-07 11:13:20,975 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 36 places, 30 transitions, 66 flow [2024-11-07 11:13:20,988 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 11:13:21,004 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;@22c0fdd7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 11:13:21,005 INFO L334 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2024-11-07 11:13:21,014 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 11:13:21,014 INFO L124 PetriNetUnfolderBase]: 0/13 cut-off events. [2024-11-07 11:13:21,014 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 11:13:21,015 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:13:21,015 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:13:21,016 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P1Err0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:13:21,020 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:13:21,020 INFO L85 PathProgramCache]: Analyzing trace with hash -710585529, now seen corresponding path program 1 times [2024-11-07 11:13:21,028 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:13:21,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183905215] [2024-11-07 11:13:21,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:13:21,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:13:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:13:21,535 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 11:13:21,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:13:21,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183905215] [2024-11-07 11:13:21,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183905215] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:13:21,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:13:21,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 11:13:21,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235813974] [2024-11-07 11:13:21,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:13:21,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 11:13:21,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:13:21,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 11:13:21,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 11:13:21,578 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 32 [2024-11-07 11:13:21,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 36 places, 30 transitions, 66 flow. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 11:13:21,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:13:21,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 32 [2024-11-07 11:13:21,586 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:13:21,889 INFO L124 PetriNetUnfolderBase]: 176/352 cut-off events. [2024-11-07 11:13:21,890 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 11:13:21,892 INFO L83 FinitePrefix]: Finished finitePrefix Result has 673 conditions, 352 events. 176/352 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 1764 event pairs, 16 based on Foata normal form. 18/361 useless extension candidates. Maximal degree in co-relation 663. Up to 266 conditions per place. [2024-11-07 11:13:21,898 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 21 selfloop transitions, 2 changer transitions 2/36 dead transitions. [2024-11-07 11:13:21,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 36 transitions, 128 flow [2024-11-07 11:13:21,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 11:13:21,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 11:13:21,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 67 transitions. [2024-11-07 11:13:21,919 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6979166666666666 [2024-11-07 11:13:21,921 INFO L175 Difference]: Start difference. First operand has 36 places, 30 transitions, 66 flow. Second operand 3 states and 67 transitions. [2024-11-07 11:13:21,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 36 transitions, 128 flow [2024-11-07 11:13:21,928 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 36 transitions, 126 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 11:13:21,933 INFO L231 Difference]: Finished difference. Result has 35 places, 27 transitions, 62 flow [2024-11-07 11:13:21,935 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=62, PETRI_PLACES=35, PETRI_TRANSITIONS=27} [2024-11-07 11:13:21,940 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, -1 predicate places. [2024-11-07 11:13:21,941 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 27 transitions, 62 flow [2024-11-07 11:13:21,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 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 11:13:21,942 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:13:21,942 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:13:21,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 11:13:21,943 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:13:21,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:13:21,944 INFO L85 PathProgramCache]: Analyzing trace with hash 1753067114, now seen corresponding path program 1 times [2024-11-07 11:13:21,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:13:21,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584827934] [2024-11-07 11:13:21,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:13:21,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:13:22,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:13:22,332 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 11:13:22,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:13:22,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584827934] [2024-11-07 11:13:22,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584827934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:13:22,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:13:22,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 11:13:22,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326571247] [2024-11-07 11:13:22,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:13:22,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 11:13:22,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:13:22,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 11:13:22,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 11:13:22,346 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2024-11-07 11:13:22,346 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 27 transitions, 62 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 11:13:22,346 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:13:22,347 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2024-11-07 11:13:22,347 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:13:22,578 INFO L124 PetriNetUnfolderBase]: 221/465 cut-off events. [2024-11-07 11:13:22,578 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-07 11:13:22,581 INFO L83 FinitePrefix]: Finished finitePrefix Result has 905 conditions, 465 events. 221/465 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 2249 event pairs, 38 based on Foata normal form. 28/471 useless extension candidates. Maximal degree in co-relation 895. Up to 216 conditions per place. [2024-11-07 11:13:22,586 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 34 selfloop transitions, 4 changer transitions 1/47 dead transitions. [2024-11-07 11:13:22,587 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 47 transitions, 186 flow [2024-11-07 11:13:22,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 11:13:22,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 11:13:22,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 81 transitions. [2024-11-07 11:13:22,589 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6328125 [2024-11-07 11:13:22,589 INFO L175 Difference]: Start difference. First operand has 35 places, 27 transitions, 62 flow. Second operand 4 states and 81 transitions. [2024-11-07 11:13:22,589 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 47 transitions, 186 flow [2024-11-07 11:13:22,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 47 transitions, 178 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 11:13:22,594 INFO L231 Difference]: Finished difference. Result has 37 places, 29 transitions, 84 flow [2024-11-07 11:13:22,595 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=84, PETRI_PLACES=37, PETRI_TRANSITIONS=29} [2024-11-07 11:13:22,596 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 1 predicate places. [2024-11-07 11:13:22,596 INFO L471 AbstractCegarLoop]: Abstraction has has 37 places, 29 transitions, 84 flow [2024-11-07 11:13:22,596 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 11:13:22,597 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:13:22,597 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:13:22,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 11:13:22,597 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:13:22,598 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:13:22,598 INFO L85 PathProgramCache]: Analyzing trace with hash -1039214016, now seen corresponding path program 1 times [2024-11-07 11:13:22,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:13:22,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102435809] [2024-11-07 11:13:22,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:13:22,599 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:13:22,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:13:22,969 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 11:13:22,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:13:22,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102435809] [2024-11-07 11:13:22,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102435809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:13:22,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:13:22,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 11:13:22,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613882269] [2024-11-07 11:13:22,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:13:22,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 11:13:22,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:13:22,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 11:13:22,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 11:13:22,983 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 32 [2024-11-07 11:13:22,984 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 29 transitions, 84 flow. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 11:13:22,984 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:13:22,984 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 32 [2024-11-07 11:13:22,985 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:13:23,171 INFO L124 PetriNetUnfolderBase]: 110/232 cut-off events. [2024-11-07 11:13:23,173 INFO L125 PetriNetUnfolderBase]: For 71/71 co-relation queries the response was YES. [2024-11-07 11:13:23,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 549 conditions, 232 events. 110/232 cut-off events. For 71/71 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 809 event pairs, 26 based on Foata normal form. 18/242 useless extension candidates. Maximal degree in co-relation 537. Up to 101 conditions per place. [2024-11-07 11:13:23,176 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 28 selfloop transitions, 6 changer transitions 1/43 dead transitions. [2024-11-07 11:13:23,177 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 43 transitions, 187 flow [2024-11-07 11:13:23,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 11:13:23,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 11:13:23,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 87 transitions. [2024-11-07 11:13:23,180 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.54375 [2024-11-07 11:13:23,180 INFO L175 Difference]: Start difference. First operand has 37 places, 29 transitions, 84 flow. Second operand 5 states and 87 transitions. [2024-11-07 11:13:23,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 43 transitions, 187 flow [2024-11-07 11:13:23,182 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 43 transitions, 178 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-07 11:13:23,183 INFO L231 Difference]: Finished difference. Result has 41 places, 29 transitions, 100 flow [2024-11-07 11:13:23,184 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=100, PETRI_PLACES=41, PETRI_TRANSITIONS=29} [2024-11-07 11:13:23,185 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 5 predicate places. [2024-11-07 11:13:23,186 INFO L471 AbstractCegarLoop]: Abstraction has has 41 places, 29 transitions, 100 flow [2024-11-07 11:13:23,186 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 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 11:13:23,187 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:13:23,187 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:13:23,187 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 11:13:23,187 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:13:23,188 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:13:23,188 INFO L85 PathProgramCache]: Analyzing trace with hash -1541160680, now seen corresponding path program 1 times [2024-11-07 11:13:23,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:13:23,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295821262] [2024-11-07 11:13:23,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:13:23,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:13:23,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:13:27,227 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:13:27,227 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:13:27,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295821262] [2024-11-07 11:13:27,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295821262] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:13:27,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:13:27,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-07 11:13:27,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520219234] [2024-11-07 11:13:27,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:13:27,228 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 11:13:27,228 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:13:27,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 11:13:27,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-11-07 11:13:27,258 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-07 11:13:27,260 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 29 transitions, 100 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 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 11:13:27,260 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:13:27,261 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-07 11:13:27,261 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:13:27,773 INFO L124 PetriNetUnfolderBase]: 130/308 cut-off events. [2024-11-07 11:13:27,773 INFO L125 PetriNetUnfolderBase]: For 104/104 co-relation queries the response was YES. [2024-11-07 11:13:27,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 695 conditions, 308 events. 130/308 cut-off events. For 104/104 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1236 event pairs, 38 based on Foata normal form. 4/307 useless extension candidates. Maximal degree in co-relation 681. Up to 135 conditions per place. [2024-11-07 11:13:27,776 INFO L140 encePairwiseOnDemand]: 22/32 looper letters, 25 selfloop transitions, 13 changer transitions 14/63 dead transitions. [2024-11-07 11:13:27,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 50 places, 63 transitions, 280 flow [2024-11-07 11:13:27,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 11:13:27,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 11:13:27,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 163 transitions. [2024-11-07 11:13:27,779 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.509375 [2024-11-07 11:13:27,779 INFO L175 Difference]: Start difference. First operand has 41 places, 29 transitions, 100 flow. Second operand 10 states and 163 transitions. [2024-11-07 11:13:27,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 50 places, 63 transitions, 280 flow [2024-11-07 11:13:27,781 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 63 transitions, 246 flow, removed 8 selfloop flow, removed 6 redundant places. [2024-11-07 11:13:27,785 INFO L231 Difference]: Finished difference. Result has 49 places, 40 transitions, 147 flow [2024-11-07 11:13:27,785 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=147, PETRI_PLACES=49, PETRI_TRANSITIONS=40} [2024-11-07 11:13:27,786 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 13 predicate places. [2024-11-07 11:13:27,787 INFO L471 AbstractCegarLoop]: Abstraction has has 49 places, 40 transitions, 147 flow [2024-11-07 11:13:27,787 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 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 11:13:27,788 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:13:27,788 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:13:27,788 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 11:13:27,788 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:13:27,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:13:27,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1589133984, now seen corresponding path program 2 times [2024-11-07 11:13:27,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:13:27,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24524484] [2024-11-07 11:13:27,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:13:27,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:13:27,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:13:28,588 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 11:13:28,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:13:28,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24524484] [2024-11-07 11:13:28,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24524484] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:13:28,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:13:28,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 11:13:28,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [249763632] [2024-11-07 11:13:28,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:13:28,590 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 11:13:28,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:13:28,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 11:13:28,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 11:13:28,604 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 32 [2024-11-07 11:13:28,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 40 transitions, 147 flow. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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 11:13:28,607 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:13:28,607 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 32 [2024-11-07 11:13:28,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:13:28,843 INFO L124 PetriNetUnfolderBase]: 174/380 cut-off events. [2024-11-07 11:13:28,843 INFO L125 PetriNetUnfolderBase]: For 54/54 co-relation queries the response was YES. [2024-11-07 11:13:28,844 INFO L83 FinitePrefix]: Finished finitePrefix Result has 927 conditions, 380 events. 174/380 cut-off events. For 54/54 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1585 event pairs, 36 based on Foata normal form. 4/376 useless extension candidates. Maximal degree in co-relation 911. Up to 176 conditions per place. [2024-11-07 11:13:28,845 INFO L140 encePairwiseOnDemand]: 25/32 looper letters, 28 selfloop transitions, 4 changer transitions 29/70 dead transitions. [2024-11-07 11:13:28,845 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 70 transitions, 369 flow [2024-11-07 11:13:28,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 11:13:28,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 11:13:28,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 99 transitions. [2024-11-07 11:13:28,847 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.515625 [2024-11-07 11:13:28,847 INFO L175 Difference]: Start difference. First operand has 49 places, 40 transitions, 147 flow. Second operand 6 states and 99 transitions. [2024-11-07 11:13:28,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 70 transitions, 369 flow [2024-11-07 11:13:28,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 70 transitions, 352 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-07 11:13:28,849 INFO L231 Difference]: Finished difference. Result has 52 places, 35 transitions, 132 flow [2024-11-07 11:13:28,849 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=132, PETRI_PLACES=52, PETRI_TRANSITIONS=35} [2024-11-07 11:13:28,850 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 16 predicate places. [2024-11-07 11:13:28,850 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 35 transitions, 132 flow [2024-11-07 11:13:28,850 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 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 11:13:28,850 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:13:28,850 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:13:28,850 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 11:13:28,851 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:13:28,851 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:13:28,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1239153712, now seen corresponding path program 3 times [2024-11-07 11:13:28,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:13:28,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557243396] [2024-11-07 11:13:28,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:13:28,851 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:13:28,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:13:31,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 11:13:31,467 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:13:31,467 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557243396] [2024-11-07 11:13:31,467 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [557243396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:13:31,467 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:13:31,467 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-07 11:13:31,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013410104] [2024-11-07 11:13:31,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:13:31,468 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-07 11:13:31,468 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:13:31,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-07 11:13:31,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-11-07 11:13:31,486 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-07 11:13:31,486 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 35 transitions, 132 flow. Second operand has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 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 11:13:31,486 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:13:31,487 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-07 11:13:31,487 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:13:31,870 INFO L124 PetriNetUnfolderBase]: 84/216 cut-off events. [2024-11-07 11:13:31,871 INFO L125 PetriNetUnfolderBase]: For 22/22 co-relation queries the response was YES. [2024-11-07 11:13:31,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 502 conditions, 216 events. 84/216 cut-off events. For 22/22 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 754 event pairs, 31 based on Foata normal form. 4/215 useless extension candidates. Maximal degree in co-relation 484. Up to 66 conditions per place. [2024-11-07 11:13:31,872 INFO L140 encePairwiseOnDemand]: 23/32 looper letters, 17 selfloop transitions, 5 changer transitions 21/54 dead transitions. [2024-11-07 11:13:31,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 54 transitions, 262 flow [2024-11-07 11:13:31,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 11:13:31,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 11:13:31,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 140 transitions. [2024-11-07 11:13:31,876 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4861111111111111 [2024-11-07 11:13:31,876 INFO L175 Difference]: Start difference. First operand has 52 places, 35 transitions, 132 flow. Second operand 9 states and 140 transitions. [2024-11-07 11:13:31,876 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 54 transitions, 262 flow [2024-11-07 11:13:31,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 54 transitions, 235 flow, removed 5 selfloop flow, removed 8 redundant places. [2024-11-07 11:13:31,878 INFO L231 Difference]: Finished difference. Result has 54 places, 29 transitions, 106 flow [2024-11-07 11:13:31,878 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=106, PETRI_PLACES=54, PETRI_TRANSITIONS=29} [2024-11-07 11:13:31,879 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 18 predicate places. [2024-11-07 11:13:31,879 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 29 transitions, 106 flow [2024-11-07 11:13:31,881 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.454545454545455) internal successors, (137), 11 states have internal predecessors, (137), 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 11:13:31,881 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:13:31,881 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:13:31,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 11:13:31,881 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [P1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 2 more)] === [2024-11-07 11:13:31,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:13:31,882 INFO L85 PathProgramCache]: Analyzing trace with hash -473308276, now seen corresponding path program 4 times [2024-11-07 11:13:31,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:13:31,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510647805] [2024-11-07 11:13:31,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:13:31,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:13:31,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:13:35,710 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 11:13:35,710 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:13:35,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510647805] [2024-11-07 11:13:35,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510647805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:13:35,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:13:35,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-07 11:13:35,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129017348] [2024-11-07 11:13:35,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:13:35,712 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 11:13:35,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:13:35,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 11:13:35,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-07 11:13:35,735 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-07 11:13:35,736 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 29 transitions, 106 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 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 11:13:35,736 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:13:35,736 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-07 11:13:35,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:13:36,380 INFO L124 PetriNetUnfolderBase]: 35/99 cut-off events. [2024-11-07 11:13:36,380 INFO L125 PetriNetUnfolderBase]: For 10/10 co-relation queries the response was YES. [2024-11-07 11:13:36,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241 conditions, 99 events. 35/99 cut-off events. For 10/10 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 209 event pairs, 10 based on Foata normal form. 4/101 useless extension candidates. Maximal degree in co-relation 231. Up to 35 conditions per place. [2024-11-07 11:13:36,381 INFO L140 encePairwiseOnDemand]: 23/32 looper letters, 0 selfloop transitions, 0 changer transitions 39/39 dead transitions. [2024-11-07 11:13:36,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 39 transitions, 184 flow [2024-11-07 11:13:36,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 11:13:36,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 11:13:36,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 140 transitions. [2024-11-07 11:13:36,383 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4375 [2024-11-07 11:13:36,383 INFO L175 Difference]: Start difference. First operand has 54 places, 29 transitions, 106 flow. Second operand 10 states and 140 transitions. [2024-11-07 11:13:36,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 39 transitions, 184 flow [2024-11-07 11:13:36,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 39 transitions, 158 flow, removed 3 selfloop flow, removed 12 redundant places. [2024-11-07 11:13:36,384 INFO L231 Difference]: Finished difference. Result has 45 places, 0 transitions, 0 flow [2024-11-07 11:13:36,384 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=0, PETRI_PLACES=45, PETRI_TRANSITIONS=0} [2024-11-07 11:13:36,385 INFO L277 CegarLoopForPetriNet]: 36 programPoint places, 9 predicate places. [2024-11-07 11:13:36,385 INFO L471 AbstractCegarLoop]: Abstraction has has 45 places, 0 transitions, 0 flow [2024-11-07 11:13:36,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 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 11:13:36,388 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2024-11-07 11:13:36,388 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2024-11-07 11:13:36,389 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 5 remaining) [2024-11-07 11:13:36,389 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 5 remaining) [2024-11-07 11:13:36,389 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2024-11-07 11:13:36,389 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 11:13:36,389 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1] [2024-11-07 11:13:36,394 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 11:13:36,394 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 11:13:36,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 11:13:36 BasicIcfg [2024-11-07 11:13:36,399 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 11:13:36,400 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 11:13:36,400 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 11:13:36,400 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 11:13:36,401 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:13:20" (3/4) ... [2024-11-07 11:13:36,402 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-07 11:13:36,404 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-07 11:13:36,405 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-07 11:13:36,409 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 74 nodes and edges [2024-11-07 11:13:36,410 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-07 11:13:36,411 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-07 11:13:36,411 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-07 11:13:36,495 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 11:13:36,495 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-07 11:13:36,495 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 11:13:36,498 INFO L158 Benchmark]: Toolchain (without parser) took 17284.71ms. Allocated memory was 100.7MB in the beginning and 536.9MB in the end (delta: 436.2MB). Free memory was 75.2MB in the beginning and 449.5MB in the end (delta: -374.4MB). Peak memory consumption was 62.5MB. Max. memory is 16.1GB. [2024-11-07 11:13:36,499 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 11:13:36,499 INFO L158 Benchmark]: CACSL2BoogieTranslator took 518.37ms. Allocated memory is still 100.7MB. Free memory was 75.0MB in the beginning and 50.0MB in the end (delta: 25.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-07 11:13:36,499 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.58ms. Allocated memory is still 100.7MB. Free memory was 50.0MB in the beginning and 46.9MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 11:13:36,500 INFO L158 Benchmark]: Boogie Preprocessor took 47.17ms. Allocated memory is still 100.7MB. Free memory was 46.9MB in the beginning and 42.9MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 11:13:36,501 INFO L158 Benchmark]: RCFGBuilder took 975.22ms. Allocated memory is still 100.7MB. Free memory was 42.9MB in the beginning and 56.1MB in the end (delta: -13.2MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. [2024-11-07 11:13:36,501 INFO L158 Benchmark]: TraceAbstraction took 15599.01ms. Allocated memory was 100.7MB in the beginning and 536.9MB in the end (delta: 436.2MB). Free memory was 55.5MB in the beginning and 453.8MB in the end (delta: -398.3MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2024-11-07 11:13:36,502 INFO L158 Benchmark]: Witness Printer took 95.74ms. Allocated memory is still 536.9MB. Free memory was 453.8MB in the beginning and 449.5MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 11:13:36,504 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 83.9MB. Free memory is still 48.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 518.37ms. Allocated memory is still 100.7MB. Free memory was 75.0MB in the beginning and 50.0MB in the end (delta: 25.0MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.58ms. Allocated memory is still 100.7MB. Free memory was 50.0MB in the beginning and 46.9MB in the end (delta: 3.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 47.17ms. Allocated memory is still 100.7MB. Free memory was 46.9MB in the beginning and 42.9MB in the end (delta: 3.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 975.22ms. Allocated memory is still 100.7MB. Free memory was 42.9MB in the beginning and 56.1MB in the end (delta: -13.2MB). Peak memory consumption was 19.5MB. Max. memory is 16.1GB. * TraceAbstraction took 15599.01ms. Allocated memory was 100.7MB in the beginning and 536.9MB in the end (delta: 436.2MB). Free memory was 55.5MB in the beginning and 453.8MB in the end (delta: -398.3MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. * Witness Printer took 95.74ms. Allocated memory is still 536.9MB. Free memory was 453.8MB in the beginning and 449.5MB in the end (delta: 4.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - PositiveResult [Line: 18]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 51 locations, 5 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: 15.5s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 2.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 246 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 229 mSDsluCounter, 205 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 199 mSDsCounter, 35 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 905 IncrementalHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 35 mSolverCounterUnsat, 6 mSDtfsCounter, 905 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 63 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=147occurred in iteration=4, InterpolantAutomatonStates: 47, 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, 0.7s SatisfiabilityAnalysisTime, 11.6s InterpolantComputationTime, 132 NumberOfCodeBlocks, 132 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 125 ConstructedInterpolants, 0 QuantifiedInterpolants, 1882 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 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 2 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-07 11:13:36,534 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