./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c --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/weaver/popl20-more-min-le-max.wvr.c', '-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', 'dbd0a32f8466e9a1ac86b6dfec2b7453fe6f40d8d953742d93d3d05c5ad7b7af'] 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/weaver/popl20-more-min-le-max.wvr.c -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 dbd0a32f8466e9a1ac86b6dfec2b7453fe6f40d8d953742d93d3d05c5ad7b7af --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 11:29:44,406 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 11:29:44,483 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 11:29:44,488 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 11:29:44,489 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 11:29:44,508 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 11:29:44,510 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 11:29:44,510 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 11:29:44,510 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 11:29:44,510 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 11:29:44,510 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 11:29:44,510 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 11:29:44,510 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 11:29:44,511 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 11:29:44,511 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 11:29:44,511 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 11:29:44,511 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 11:29:44,511 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 11:29:44,511 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 11:29:44,511 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 11:29:44,511 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 11:29:44,511 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 11:29:44,511 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 11:29:44,511 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 11:29:44,511 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 11:29:44,511 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 11:29:44,511 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 11:29:44,511 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 11:29:44,511 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 11:29:44,511 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 11:29:44,511 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 11:29:44,511 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 11:29:44,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:29:44,512 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 11:29:44,512 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 11:29:44,512 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 11:29:44,512 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 11:29:44,512 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 11:29:44,512 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 11:29:44,512 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 11:29:44,512 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 11:29:44,512 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 11:29:44,514 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 -> dbd0a32f8466e9a1ac86b6dfec2b7453fe6f40d8d953742d93d3d05c5ad7b7af [2024-11-07 11:29:44,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 11:29:44,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 11:29:44,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 11:29:44,754 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 11:29:44,754 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 11:29:44,755 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c [2024-11-07 11:29:45,859 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 11:29:46,071 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 11:29:46,072 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/weaver/popl20-more-min-le-max.wvr.c [2024-11-07 11:29:46,078 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/06abeb4fb/50ad36de4cbc4f8db6d303a00573603c/FLAG498d33cc2 [2024-11-07 11:29:46,430 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/06abeb4fb/50ad36de4cbc4f8db6d303a00573603c [2024-11-07 11:29:46,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 11:29:46,433 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 11:29:46,434 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 11:29:46,434 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 11:29:46,438 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 11:29:46,439 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:29:46" (1/1) ... [2024-11-07 11:29:46,439 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ca0284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:46, skipping insertion in model container [2024-11-07 11:29:46,439 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:29:46" (1/1) ... [2024-11-07 11:29:46,452 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 11:29:46,572 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/weaver/popl20-more-min-le-max.wvr.c[2525,2538] [2024-11-07 11:29:46,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:29:46,591 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 11:29:46,607 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/weaver/popl20-more-min-le-max.wvr.c[2525,2538] [2024-11-07 11:29:46,611 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 11:29:46,623 INFO L204 MainTranslator]: Completed translation [2024-11-07 11:29:46,624 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:46 WrapperNode [2024-11-07 11:29:46,624 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 11:29:46,625 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 11:29:46,625 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 11:29:46,625 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 11:29:46,629 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:46" (1/1) ... [2024-11-07 11:29:46,640 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:46" (1/1) ... [2024-11-07 11:29:46,658 INFO L138 Inliner]: procedures = 23, calls = 28, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 88 [2024-11-07 11:29:46,660 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 11:29:46,661 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 11:29:46,661 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 11:29:46,661 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 11:29:46,668 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:46" (1/1) ... [2024-11-07 11:29:46,669 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:46" (1/1) ... [2024-11-07 11:29:46,671 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:46" (1/1) ... [2024-11-07 11:29:46,688 INFO L175 MemorySlicer]: Split 9 memory accesses to 2 slices as follows [2, 7]. 78 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 1 writes are split as follows [0, 1]. [2024-11-07 11:29:46,690 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:46" (1/1) ... [2024-11-07 11:29:46,690 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:46" (1/1) ... [2024-11-07 11:29:46,697 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:46" (1/1) ... [2024-11-07 11:29:46,701 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:46" (1/1) ... [2024-11-07 11:29:46,702 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:46" (1/1) ... [2024-11-07 11:29:46,703 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:46" (1/1) ... [2024-11-07 11:29:46,704 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 11:29:46,704 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 11:29:46,704 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 11:29:46,705 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 11:29:46,705 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:46" (1/1) ... [2024-11-07 11:29:46,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 11:29:46,718 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:29:46,728 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 11:29:46,730 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 11:29:46,748 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 11:29:46,748 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-07 11:29:46,748 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-07 11:29:46,748 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-07 11:29:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-07 11:29:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-11-07 11:29:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-11-07 11:29:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 11:29:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 11:29:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 11:29:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 11:29:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-07 11:29:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-07 11:29:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 11:29:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 11:29:46,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 11:29:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 11:29:46,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 11:29:46,750 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 11:29:46,824 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 11:29:46,825 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 11:29:46,976 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 11:29:46,976 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 11:29:47,137 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 11:29:47,138 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-07 11:29:47,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:29:47 BoogieIcfgContainer [2024-11-07 11:29:47,139 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 11:29:47,140 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 11:29:47,141 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 11:29:47,144 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 11:29:47,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:29:46" (1/3) ... [2024-11-07 11:29:47,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f69655b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:29:47, skipping insertion in model container [2024-11-07 11:29:47,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:29:46" (2/3) ... [2024-11-07 11:29:47,145 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f69655b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:29:47, skipping insertion in model container [2024-11-07 11:29:47,145 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:29:47" (3/3) ... [2024-11-07 11:29:47,146 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-min-le-max.wvr.c [2024-11-07 11:29:47,156 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 11:29:47,156 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 11:29:47,156 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 11:29:47,194 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-07 11:29:47,216 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 38 places, 31 transitions, 83 flow [2024-11-07 11:29:47,241 INFO L124 PetriNetUnfolderBase]: 3/28 cut-off events. [2024-11-07 11:29:47,244 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-07 11:29:47,246 INFO L83 FinitePrefix]: Finished finitePrefix Result has 41 conditions, 28 events. 3/28 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 37 event pairs, 0 based on Foata normal form. 0/24 useless extension candidates. Maximal degree in co-relation 22. Up to 2 conditions per place. [2024-11-07 11:29:47,247 INFO L82 GeneralOperation]: Start removeDead. Operand has 38 places, 31 transitions, 83 flow [2024-11-07 11:29:47,248 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 34 places, 27 transitions, 72 flow [2024-11-07 11:29:47,253 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 11:29:47,264 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;@4102a98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 11:29:47,264 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-11-07 11:29:47,272 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 11:29:47,272 INFO L124 PetriNetUnfolderBase]: 3/26 cut-off events. [2024-11-07 11:29:47,272 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-07 11:29:47,272 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:29:47,273 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:29:47,273 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 11:29:47,276 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:29:47,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1755584056, now seen corresponding path program 1 times [2024-11-07 11:29:47,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:29:47,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52063792] [2024-11-07 11:29:47,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:29:47,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:29:47,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:29:47,532 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 11:29:47,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:29:47,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52063792] [2024-11-07 11:29:47,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52063792] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:29:47,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:29:47,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 11:29:47,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [114152901] [2024-11-07 11:29:47,535 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:29:47,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 11:29:47,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:29:47,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 11:29:47,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 11:29:47,582 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 31 [2024-11-07 11:29:47,584 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 27 transitions, 72 flow. Second operand has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 11:29:47,584 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:29:47,584 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 31 [2024-11-07 11:29:47,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:29:47,728 INFO L124 PetriNetUnfolderBase]: 317/538 cut-off events. [2024-11-07 11:29:47,729 INFO L125 PetriNetUnfolderBase]: For 40/40 co-relation queries the response was YES. [2024-11-07 11:29:47,731 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1103 conditions, 538 events. 317/538 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2321 event pairs, 143 based on Foata normal form. 26/538 useless extension candidates. Maximal degree in co-relation 1001. Up to 331 conditions per place. [2024-11-07 11:29:47,736 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 30 selfloop transitions, 3 changer transitions 0/38 dead transitions. [2024-11-07 11:29:47,736 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 38 transitions, 166 flow [2024-11-07 11:29:47,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 11:29:47,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 11:29:47,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 66 transitions. [2024-11-07 11:29:47,753 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.532258064516129 [2024-11-07 11:29:47,754 INFO L175 Difference]: Start difference. First operand has 34 places, 27 transitions, 72 flow. Second operand 4 states and 66 transitions. [2024-11-07 11:29:47,754 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 38 transitions, 166 flow [2024-11-07 11:29:47,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 38 transitions, 150 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-11-07 11:29:47,760 INFO L231 Difference]: Finished difference. Result has 32 places, 28 transitions, 74 flow [2024-11-07 11:29:47,763 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=60, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=74, PETRI_PLACES=32, PETRI_TRANSITIONS=28} [2024-11-07 11:29:47,765 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, -2 predicate places. [2024-11-07 11:29:47,766 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 28 transitions, 74 flow [2024-11-07 11:29:47,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 4 states have internal predecessors, (49), 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 11:29:47,766 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:29:47,766 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 11:29:47,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 11:29:47,766 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 11:29:47,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:29:47,767 INFO L85 PathProgramCache]: Analyzing trace with hash 282767181, now seen corresponding path program 1 times [2024-11-07 11:29:47,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:29:47,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [138178555] [2024-11-07 11:29:47,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:29:47,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:29:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:29:47,887 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 11:29:47,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:29:47,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [138178555] [2024-11-07 11:29:47,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [138178555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:29:47,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:29:47,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 11:29:47,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985400749] [2024-11-07 11:29:47,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:29:47,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 11:29:47,890 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:29:47,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 11:29:47,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 11:29:47,897 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 31 [2024-11-07 11:29:47,898 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 28 transitions, 74 flow. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 11:29:47,898 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:29:47,898 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 31 [2024-11-07 11:29:47,898 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:29:48,033 INFO L124 PetriNetUnfolderBase]: 465/792 cut-off events. [2024-11-07 11:29:48,033 INFO L125 PetriNetUnfolderBase]: For 167/167 co-relation queries the response was YES. [2024-11-07 11:29:48,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1741 conditions, 792 events. 465/792 cut-off events. For 167/167 co-relation queries the response was YES. Maximal size of possible extension queue 56. Compared 3737 event pairs, 201 based on Foata normal form. 38/801 useless extension candidates. Maximal degree in co-relation 274. Up to 485 conditions per place. [2024-11-07 11:29:48,041 INFO L140 encePairwiseOnDemand]: 27/31 looper letters, 33 selfloop transitions, 3 changer transitions 0/41 dead transitions. [2024-11-07 11:29:48,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 41 transitions, 184 flow [2024-11-07 11:29:48,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 11:29:48,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 11:29:48,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 67 transitions. [2024-11-07 11:29:48,043 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5403225806451613 [2024-11-07 11:29:48,043 INFO L175 Difference]: Start difference. First operand has 32 places, 28 transitions, 74 flow. Second operand 4 states and 67 transitions. [2024-11-07 11:29:48,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 41 transitions, 184 flow [2024-11-07 11:29:48,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 41 transitions, 178 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 11:29:48,045 INFO L231 Difference]: Finished difference. Result has 34 places, 29 transitions, 84 flow [2024-11-07 11:29:48,045 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=70, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=84, PETRI_PLACES=34, PETRI_TRANSITIONS=29} [2024-11-07 11:29:48,047 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 0 predicate places. [2024-11-07 11:29:48,047 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 29 transitions, 84 flow [2024-11-07 11:29:48,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 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 11:29:48,047 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:29:48,047 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, 1, 1] [2024-11-07 11:29:48,047 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 11:29:48,047 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 11:29:48,048 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:29:48,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1129487865, now seen corresponding path program 1 times [2024-11-07 11:29:48,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:29:48,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295867849] [2024-11-07 11:29:48,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:29:48,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:29:48,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:29:48,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-07 11:29:48,145 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:29:48,145 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295867849] [2024-11-07 11:29:48,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [295867849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 11:29:48,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 11:29:48,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 11:29:48,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702148118] [2024-11-07 11:29:48,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 11:29:48,146 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 11:29:48,146 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:29:48,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 11:29:48,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 11:29:48,151 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 31 [2024-11-07 11:29:48,152 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 29 transitions, 84 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 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 11:29:48,152 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:29:48,152 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 31 [2024-11-07 11:29:48,152 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:29:48,246 INFO L124 PetriNetUnfolderBase]: 465/789 cut-off events. [2024-11-07 11:29:48,246 INFO L125 PetriNetUnfolderBase]: For 273/273 co-relation queries the response was YES. [2024-11-07 11:29:48,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1892 conditions, 789 events. 465/789 cut-off events. For 273/273 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 3751 event pairs, 388 based on Foata normal form. 1/764 useless extension candidates. Maximal degree in co-relation 457. Up to 712 conditions per place. [2024-11-07 11:29:48,251 INFO L140 encePairwiseOnDemand]: 28/31 looper letters, 23 selfloop transitions, 2 changer transitions 0/30 dead transitions. [2024-11-07 11:29:48,251 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 30 transitions, 136 flow [2024-11-07 11:29:48,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 11:29:48,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 11:29:48,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 48 transitions. [2024-11-07 11:29:48,252 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5161290322580645 [2024-11-07 11:29:48,252 INFO L175 Difference]: Start difference. First operand has 34 places, 29 transitions, 84 flow. Second operand 3 states and 48 transitions. [2024-11-07 11:29:48,252 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 30 transitions, 136 flow [2024-11-07 11:29:48,253 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 30 transitions, 132 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 11:29:48,253 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 92 flow [2024-11-07 11:29:48,253 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2024-11-07 11:29:48,254 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 1 predicate places. [2024-11-07 11:29:48,254 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 92 flow [2024-11-07 11:29:48,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 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 11:29:48,254 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 11:29:48,254 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, 1, 1, 1] [2024-11-07 11:29:48,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 11:29:48,254 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-11-07 11:29:48,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 11:29:48,255 INFO L85 PathProgramCache]: Analyzing trace with hash 1450538109, now seen corresponding path program 1 times [2024-11-07 11:29:48,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 11:29:48,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751700557] [2024-11-07 11:29:48,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:29:48,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 11:29:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:29:48,607 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 11:29:48,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 11:29:48,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751700557] [2024-11-07 11:29:48,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751700557] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 11:29:48,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143544692] [2024-11-07 11:29:48,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 11:29:48,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 11:29:48,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 11:29:48,610 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 11:29:48,611 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 11:29:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 11:29:48,697 INFO L255 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-07 11:29:48,700 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 11:29:48,753 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2024-11-07 11:29:48,906 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-11-07 11:29:48,947 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 11:29:48,948 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 11:29:49,275 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-07 11:29:49,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143544692] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 11:29:49,275 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 11:29:49,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 7] total 16 [2024-11-07 11:29:49,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153714315] [2024-11-07 11:29:49,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 11:29:49,279 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-07 11:29:49,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 11:29:49,280 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-07 11:29:49,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2024-11-07 11:29:49,308 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 31 [2024-11-07 11:29:49,309 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 92 flow. Second operand has 16 states, 16 states have (on average 11.0625) internal successors, (177), 16 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:29:49,309 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 11:29:49,309 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 31 [2024-11-07 11:29:49,309 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 11:29:50,036 INFO L124 PetriNetUnfolderBase]: 1150/1845 cut-off events. [2024-11-07 11:29:50,036 INFO L125 PetriNetUnfolderBase]: For 466/466 co-relation queries the response was YES. [2024-11-07 11:29:50,039 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4326 conditions, 1845 events. 1150/1845 cut-off events. For 466/466 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 9202 event pairs, 54 based on Foata normal form. 2/1841 useless extension candidates. Maximal degree in co-relation 4313. Up to 281 conditions per place. [2024-11-07 11:29:50,041 INFO L140 encePairwiseOnDemand]: 20/31 looper letters, 0 selfloop transitions, 0 changer transitions 190/190 dead transitions. [2024-11-07 11:29:50,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 190 transitions, 921 flow [2024-11-07 11:29:50,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-07 11:29:50,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2024-11-07 11:29:50,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 357 transitions. [2024-11-07 11:29:50,044 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4798387096774194 [2024-11-07 11:29:50,044 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 92 flow. Second operand 24 states and 357 transitions. [2024-11-07 11:29:50,045 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 190 transitions, 921 flow [2024-11-07 11:29:50,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 190 transitions, 917 flow, removed 1 selfloop flow, removed 1 redundant places. [2024-11-07 11:29:50,047 INFO L231 Difference]: Finished difference. Result has 55 places, 0 transitions, 0 flow [2024-11-07 11:29:50,048 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=31, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=28, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=0, PETRI_PLACES=55, PETRI_TRANSITIONS=0} [2024-11-07 11:29:50,048 INFO L277 CegarLoopForPetriNet]: 34 programPoint places, 21 predicate places. [2024-11-07 11:29:50,048 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 0 transitions, 0 flow [2024-11-07 11:29:50,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 11.0625) internal successors, (177), 16 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 11:29:50,051 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2024-11-07 11:29:50,052 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2024-11-07 11:29:50,052 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2024-11-07 11:29:50,052 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2024-11-07 11:29:50,065 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 11:29:50,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 11:29:50,253 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-07 11:29:50,256 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 11:29:50,256 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 11:29:50,259 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 11:29:50 BasicIcfg [2024-11-07 11:29:50,259 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 11:29:50,259 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 11:29:50,259 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 11:29:50,260 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 11:29:50,260 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:29:47" (3/4) ... [2024-11-07 11:29:50,262 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-07 11:29:50,264 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-07 11:29:50,264 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-07 11:29:50,265 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread3 [2024-11-07 11:29:50,269 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 89 nodes and edges [2024-11-07 11:29:50,270 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2024-11-07 11:29:50,270 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2024-11-07 11:29:50,270 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-07 11:29:50,331 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 11:29:50,332 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-07 11:29:50,332 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 11:29:50,333 INFO L158 Benchmark]: Toolchain (without parser) took 3899.81ms. Allocated memory was 100.7MB in the beginning and 134.2MB in the end (delta: 33.6MB). Free memory was 77.2MB in the beginning and 104.2MB in the end (delta: -26.9MB). Peak memory consumption was 76.0MB. Max. memory is 16.1GB. [2024-11-07 11:29:50,334 INFO L158 Benchmark]: CDTParser took 0.62ms. Allocated memory is still 83.9MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 11:29:50,334 INFO L158 Benchmark]: CACSL2BoogieTranslator took 190.01ms. Allocated memory is still 100.7MB. Free memory was 77.1MB in the beginning and 65.1MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 11:29:50,334 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.73ms. Allocated memory is still 100.7MB. Free memory was 65.1MB in the beginning and 63.7MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 11:29:50,335 INFO L158 Benchmark]: Boogie Preprocessor took 43.04ms. Allocated memory is still 100.7MB. Free memory was 63.7MB in the beginning and 61.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 11:29:50,335 INFO L158 Benchmark]: RCFGBuilder took 434.30ms. Allocated memory is still 100.7MB. Free memory was 61.9MB in the beginning and 67.2MB in the end (delta: -5.3MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. [2024-11-07 11:29:50,335 INFO L158 Benchmark]: TraceAbstraction took 3118.42ms. Allocated memory was 100.7MB in the beginning and 134.2MB in the end (delta: 33.6MB). Free memory was 66.8MB in the beginning and 41.2MB in the end (delta: 25.6MB). Peak memory consumption was 55.5MB. Max. memory is 16.1GB. [2024-11-07 11:29:50,337 INFO L158 Benchmark]: Witness Printer took 73.03ms. Allocated memory is still 134.2MB. Free memory was 41.2MB in the beginning and 104.2MB in the end (delta: -63.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 11:29:50,338 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62ms. Allocated memory is still 83.9MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 190.01ms. Allocated memory is still 100.7MB. Free memory was 77.1MB in the beginning and 65.1MB in the end (delta: 12.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.73ms. Allocated memory is still 100.7MB. Free memory was 65.1MB in the beginning and 63.7MB in the end (delta: 1.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 43.04ms. Allocated memory is still 100.7MB. Free memory was 63.7MB in the beginning and 61.9MB in the end (delta: 1.8MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 434.30ms. Allocated memory is still 100.7MB. Free memory was 61.9MB in the beginning and 67.2MB in the end (delta: -5.3MB). Peak memory consumption was 28.8MB. Max. memory is 16.1GB. * TraceAbstraction took 3118.42ms. Allocated memory was 100.7MB in the beginning and 134.2MB in the end (delta: 33.6MB). Free memory was 66.8MB in the beginning and 41.2MB in the end (delta: 25.6MB). Peak memory consumption was 55.5MB. Max. memory is 16.1GB. * Witness Printer took 73.03ms. Allocated memory is still 134.2MB. Free memory was 41.2MB in the beginning and 104.2MB in the end (delta: -63.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 98]: 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 7 procedures, 46 locations, 4 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: 3.0s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 230 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 217 mSDsluCounter, 79 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 79 mSDsCounter, 28 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 698 IncrementalHoareTripleChecker+Invalid, 726 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 28 mSolverCounterUnsat, 0 mSDtfsCounter, 698 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=92occurred in iteration=3, InterpolantAutomatonStates: 35, 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, 1.2s InterpolantComputationTime, 123 NumberOfCodeBlocks, 123 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 144 ConstructedInterpolants, 0 QuantifiedInterpolants, 1116 SizeOfPredicates, 11 NumberOfNonLiveVariables, 181 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 6 InterpolantComputations, 3 PerfectInterpolantSequences, 5/12 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-07 11:29:50,361 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