./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-wmm/safe006_power.opt-thin000_power.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/pthread-wmm/safe006_power.opt-thin000_power.opt.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! overflow) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', 'eec124b30114ac40ce6b503b76c1b377fc7c0cddd0ece3b04d579d49ce56e9b5'] 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/safe006_power.opt-thin000_power.opt.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eec124b30114ac40ce6b503b76c1b377fc7c0cddd0ece3b04d579d49ce56e9b5 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 23:27:24,341 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 23:27:24,411 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-07 23:27:24,418 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 23:27:24,418 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 23:27:24,438 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 23:27:24,439 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 23:27:24,439 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 23:27:24,440 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 23:27:24,440 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 23:27:24,441 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 23:27:24,441 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 23:27:24,441 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 23:27:24,441 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 23:27:24,441 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 23:27:24,441 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 23:27:24,442 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 23:27:24,442 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 23:27:24,442 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 23:27:24,442 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 23:27:24,442 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 23:27:24,442 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 23:27:24,442 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 23:27:24,442 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 23:27:24,442 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 23:27:24,442 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-07 23:27:24,443 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 23:27:24,443 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 23:27:24,443 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 23:27:24,443 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 23:27:24,443 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 23:27:24,443 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 23:27:24,443 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 23:27:24,443 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 23:27:24,443 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:27:24,444 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 23:27:24,444 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 23:27:24,444 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 23:27:24,444 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 23:27:24,444 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 23:27:24,444 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 23:27:24,444 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 23:27:24,445 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 23:27:24,445 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 23:27:24,445 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eec124b30114ac40ce6b503b76c1b377fc7c0cddd0ece3b04d579d49ce56e9b5 [2024-11-07 23:27:24,651 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 23:27:24,659 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 23:27:24,661 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 23:27:24,661 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 23:27:24,661 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 23:27:24,662 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe006_power.opt-thin000_power.opt.i [2024-11-07 23:27:25,786 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 23:27:25,997 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 23:27:25,998 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe006_power.opt-thin000_power.opt.i [2024-11-07 23:27:26,011 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fc45db633/7570159e66d64bc2829cede3e2b5ec9c/FLAG4fea4954a [2024-11-07 23:27:26,345 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/fc45db633/7570159e66d64bc2829cede3e2b5ec9c [2024-11-07 23:27:26,349 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 23:27:26,351 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 23:27:26,352 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 23:27:26,352 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 23:27:26,359 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 23:27:26,360 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:27:26" (1/1) ... [2024-11-07 23:27:26,361 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@284fbdb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:27:26, skipping insertion in model container [2024-11-07 23:27:26,361 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 11:27:26" (1/1) ... [2024-11-07 23:27:26,387 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 23:27:26,606 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:27:26,613 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 23:27:26,671 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 23:27:26,703 INFO L204 MainTranslator]: Completed translation [2024-11-07 23:27:26,704 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:27:26 WrapperNode [2024-11-07 23:27:26,704 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 23:27:26,705 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 23:27:26,706 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 23:27:26,706 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 23:27:26,711 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:27:26" (1/1) ... [2024-11-07 23:27:26,726 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:27:26" (1/1) ... [2024-11-07 23:27:26,747 INFO L138 Inliner]: procedures = 174, calls = 51, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 162 [2024-11-07 23:27:26,747 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 23:27:26,748 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 23:27:26,748 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 23:27:26,748 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 23:27:26,754 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:27:26" (1/1) ... [2024-11-07 23:27:26,754 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:27:26" (1/1) ... [2024-11-07 23:27:26,756 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:27:26" (1/1) ... [2024-11-07 23:27:26,767 INFO L175 MemorySlicer]: Split 18 memory accesses to 2 slices as follows [2, 16]. 89 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1]. The 5 writes are split as follows [0, 5]. [2024-11-07 23:27:26,768 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:27:26" (1/1) ... [2024-11-07 23:27:26,768 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:27:26" (1/1) ... [2024-11-07 23:27:26,776 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:27:26" (1/1) ... [2024-11-07 23:27:26,777 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:27:26" (1/1) ... [2024-11-07 23:27:26,784 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:27:26" (1/1) ... [2024-11-07 23:27:26,785 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:27:26" (1/1) ... [2024-11-07 23:27:26,789 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 23:27:26,790 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 23:27:26,790 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 23:27:26,790 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 23:27:26,791 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:27:26" (1/1) ... [2024-11-07 23:27:26,794 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 23:27:26,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 23:27:26,814 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 23:27:26,816 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 23:27:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 23:27:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 23:27:26,831 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 23:27:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 23:27:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-07 23:27:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 23:27:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-07 23:27:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-07 23:27:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-07 23:27:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-07 23:27:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 23:27:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 23:27:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-07 23:27:26,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 23:27:26,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 23:27:26,833 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-07 23:27:26,923 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 23:27:26,924 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 23:27:27,288 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 23:27:27,288 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 23:27:27,556 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 23:27:27,556 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 23:27:27,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:27:27 BoogieIcfgContainer [2024-11-07 23:27:27,556 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 23:27:27,557 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 23:27:27,557 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 23:27:27,561 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 23:27:27,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 11:27:26" (1/3) ... [2024-11-07 23:27:27,562 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3919a50b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:27:27, skipping insertion in model container [2024-11-07 23:27:27,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 11:27:26" (2/3) ... [2024-11-07 23:27:27,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3919a50b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 11:27:27, skipping insertion in model container [2024-11-07 23:27:27,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:27:27" (3/3) ... [2024-11-07 23:27:27,563 INFO L112 eAbstractionObserver]: Analyzing ICFG safe006_power.opt-thin000_power.opt.i [2024-11-07 23:27:27,572 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 23:27:27,573 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-11-07 23:27:27,573 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 23:27:27,628 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-07 23:27:27,648 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 35 places, 28 transitions, 64 flow [2024-11-07 23:27:27,666 INFO L124 PetriNetUnfolderBase]: 0/26 cut-off events. [2024-11-07 23:27:27,668 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:27:27,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 33 conditions, 26 events. 0/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 46 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-07 23:27:27,674 INFO L82 GeneralOperation]: Start removeDead. Operand has 35 places, 28 transitions, 64 flow [2024-11-07 23:27:27,676 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 26 transitions, 58 flow [2024-11-07 23:27:27,682 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 23:27:27,691 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;@705e14c2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 23:27:27,695 INFO L334 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2024-11-07 23:27:27,703 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 23:27:27,703 INFO L124 PetriNetUnfolderBase]: 0/12 cut-off events. [2024-11-07 23:27:27,703 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 23:27:27,703 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:27:27,703 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:27:27,704 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-07 23:27:27,707 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:27:27,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1907725203, now seen corresponding path program 1 times [2024-11-07 23:27:27,712 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:27:27,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498259385] [2024-11-07 23:27:27,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:27:27,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:27:27,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:27:27,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:27:27,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:27:27,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498259385] [2024-11-07 23:27:27,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498259385] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:27:27,986 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:27:27,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 23:27:27,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978306904] [2024-11-07 23:27:27,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:27:27,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 23:27:27,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:27:28,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 23:27:28,010 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 23:27:28,014 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 28 [2024-11-07 23:27:28,017 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 26 transitions, 58 flow. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:27:28,017 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:27:28,017 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 28 [2024-11-07 23:27:28,017 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:27:28,246 INFO L124 PetriNetUnfolderBase]: 288/509 cut-off events. [2024-11-07 23:27:28,246 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-11-07 23:27:28,250 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1022 conditions, 509 events. 288/509 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 2325 event pairs, 104 based on Foata normal form. 0/452 useless extension candidates. Maximal degree in co-relation 1012. Up to 369 conditions per place. [2024-11-07 23:27:28,256 INFO L140 encePairwiseOnDemand]: 21/28 looper letters, 29 selfloop transitions, 3 changer transitions 2/39 dead transitions. [2024-11-07 23:27:28,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 39 transitions, 155 flow [2024-11-07 23:27:28,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 23:27:28,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 23:27:28,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2024-11-07 23:27:28,264 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.7023809523809523 [2024-11-07 23:27:28,265 INFO L175 Difference]: Start difference. First operand has 33 places, 26 transitions, 58 flow. Second operand 3 states and 59 transitions. [2024-11-07 23:27:28,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 39 transitions, 155 flow [2024-11-07 23:27:28,269 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 39 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 23:27:28,271 INFO L231 Difference]: Finished difference. Result has 34 places, 26 transitions, 73 flow [2024-11-07 23:27:28,273 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=56, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=73, PETRI_PLACES=34, PETRI_TRANSITIONS=26} [2024-11-07 23:27:28,275 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 1 predicate places. [2024-11-07 23:27:28,277 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 26 transitions, 73 flow [2024-11-07 23:27:28,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:27:28,277 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:27:28,277 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:27:28,277 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 23:27:28,278 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-07 23:27:28,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:27:28,278 INFO L85 PathProgramCache]: Analyzing trace with hash -768299458, now seen corresponding path program 1 times [2024-11-07 23:27:28,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:27:28,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2087776519] [2024-11-07 23:27:28,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:27:28,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:27:28,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:27:28,482 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:27:28,482 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:27:28,483 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2087776519] [2024-11-07 23:27:28,483 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2087776519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:27:28,483 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:27:28,483 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:27:28,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764873575] [2024-11-07 23:27:28,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:27:28,484 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:27:28,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:27:28,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:27:28,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:27:28,488 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 28 [2024-11-07 23:27:28,488 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 26 transitions, 73 flow. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:27:28,489 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:27:28,489 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 28 [2024-11-07 23:27:28,489 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:27:28,619 INFO L124 PetriNetUnfolderBase]: 212/385 cut-off events. [2024-11-07 23:27:28,620 INFO L125 PetriNetUnfolderBase]: For 37/37 co-relation queries the response was YES. [2024-11-07 23:27:28,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 875 conditions, 385 events. 212/385 cut-off events. For 37/37 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1787 event pairs, 80 based on Foata normal form. 0/376 useless extension candidates. Maximal degree in co-relation 864. Up to 244 conditions per place. [2024-11-07 23:27:28,622 INFO L140 encePairwiseOnDemand]: 23/28 looper letters, 27 selfloop transitions, 3 changer transitions 0/35 dead transitions. [2024-11-07 23:27:28,622 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 35 transitions, 149 flow [2024-11-07 23:27:28,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:27:28,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:27:28,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 60 transitions. [2024-11-07 23:27:28,623 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5357142857142857 [2024-11-07 23:27:28,624 INFO L175 Difference]: Start difference. First operand has 34 places, 26 transitions, 73 flow. Second operand 4 states and 60 transitions. [2024-11-07 23:27:28,624 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 35 transitions, 149 flow [2024-11-07 23:27:28,624 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 35 transitions, 146 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 23:27:28,625 INFO L231 Difference]: Finished difference. Result has 34 places, 24 transitions, 68 flow [2024-11-07 23:27:28,625 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=21, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=68, PETRI_PLACES=34, PETRI_TRANSITIONS=24} [2024-11-07 23:27:28,625 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 1 predicate places. [2024-11-07 23:27:28,626 INFO L471 AbstractCegarLoop]: Abstraction has has 34 places, 24 transitions, 68 flow [2024-11-07 23:27:28,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:27:28,626 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 23:27:28,626 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 23:27:28,626 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 23:27:28,626 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-11-07 23:27:28,627 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 23:27:28,627 INFO L85 PathProgramCache]: Analyzing trace with hash -768299457, now seen corresponding path program 1 times [2024-11-07 23:27:28,627 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 23:27:28,627 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265887126] [2024-11-07 23:27:28,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 23:27:28,628 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 23:27:28,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 23:27:28,773 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 23:27:28,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 23:27:28,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265887126] [2024-11-07 23:27:28,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265887126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 23:27:28,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 23:27:28,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 23:27:28,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010398848] [2024-11-07 23:27:28,774 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 23:27:28,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 23:27:28,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 23:27:28,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 23:27:28,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-07 23:27:28,779 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 28 [2024-11-07 23:27:28,779 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 24 transitions, 68 flow. Second operand has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:27:28,780 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 23:27:28,780 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 28 [2024-11-07 23:27:28,780 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 23:27:28,871 INFO L124 PetriNetUnfolderBase]: 180/329 cut-off events. [2024-11-07 23:27:28,871 INFO L125 PetriNetUnfolderBase]: For 100/100 co-relation queries the response was YES. [2024-11-07 23:27:28,872 INFO L83 FinitePrefix]: Finished finitePrefix Result has 740 conditions, 329 events. 180/329 cut-off events. For 100/100 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 1533 event pairs, 68 based on Foata normal form. 24/344 useless extension candidates. Maximal degree in co-relation 728. Up to 188 conditions per place. [2024-11-07 23:27:28,872 INFO L140 encePairwiseOnDemand]: 23/28 looper letters, 0 selfloop transitions, 0 changer transitions 33/33 dead transitions. [2024-11-07 23:27:28,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 35 places, 33 transitions, 140 flow [2024-11-07 23:27:28,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 23:27:28,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 23:27:28,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 58 transitions. [2024-11-07 23:27:28,875 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5178571428571429 [2024-11-07 23:27:28,875 INFO L175 Difference]: Start difference. First operand has 34 places, 24 transitions, 68 flow. Second operand 4 states and 58 transitions. [2024-11-07 23:27:28,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 35 places, 33 transitions, 140 flow [2024-11-07 23:27:28,876 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 33 transitions, 133 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 23:27:28,876 INFO L231 Difference]: Finished difference. Result has 32 places, 0 transitions, 0 flow [2024-11-07 23:27:28,876 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=28, PETRI_DIFFERENCE_MINUEND_FLOW=53, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=32, PETRI_TRANSITIONS=0} [2024-11-07 23:27:28,876 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, -1 predicate places. [2024-11-07 23:27:28,876 INFO L471 AbstractCegarLoop]: Abstraction has has 32 places, 0 transitions, 0 flow [2024-11-07 23:27:28,877 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 23:27:28,879 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 10 remaining) [2024-11-07 23:27:28,879 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 10 remaining) [2024-11-07 23:27:28,880 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 10 remaining) [2024-11-07 23:27:28,880 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 10 remaining) [2024-11-07 23:27:28,880 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (5 of 10 remaining) [2024-11-07 23:27:28,880 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 10 remaining) [2024-11-07 23:27:28,880 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 10 remaining) [2024-11-07 23:27:28,880 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P0Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 10 remaining) [2024-11-07 23:27:28,880 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 10 remaining) [2024-11-07 23:27:28,880 INFO L782 garLoopResultBuilder]: Registering result SAFE for location P1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 10 remaining) [2024-11-07 23:27:28,880 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 23:27:28,881 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-07 23:27:28,885 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 23:27:28,885 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 23:27:28,889 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 11:27:28 BasicIcfg [2024-11-07 23:27:28,889 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 23:27:28,893 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 23:27:28,893 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 23:27:28,893 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 23:27:28,894 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 11:27:27" (3/4) ... [2024-11-07 23:27:28,895 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-07 23:27:28,896 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2024-11-07 23:27:28,896 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2024-11-07 23:27:28,899 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 62 nodes and edges [2024-11-07 23:27:28,899 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-07 23:27:28,899 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-07 23:27:28,899 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-07 23:27:28,948 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 23:27:28,948 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-07 23:27:28,948 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 23:27:28,949 INFO L158 Benchmark]: Toolchain (without parser) took 2598.13ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 90.5MB in the beginning and 78.5MB in the end (delta: 12.0MB). Peak memory consumption was 89.0MB. Max. memory is 16.1GB. [2024-11-07 23:27:28,949 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 117.4MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:27:28,949 INFO L158 Benchmark]: CACSL2BoogieTranslator took 352.98ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 66.9MB in the end (delta: 23.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 23:27:28,950 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.93ms. Allocated memory is still 117.4MB. Free memory was 66.9MB in the beginning and 64.2MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 23:27:28,950 INFO L158 Benchmark]: Boogie Preprocessor took 41.47ms. Allocated memory is still 117.4MB. Free memory was 64.2MB in the beginning and 60.6MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 23:27:28,951 INFO L158 Benchmark]: RCFGBuilder took 766.16ms. Allocated memory is still 117.4MB. Free memory was 60.5MB in the beginning and 61.7MB in the end (delta: -1.3MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. [2024-11-07 23:27:28,951 INFO L158 Benchmark]: TraceAbstraction took 1331.80ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 61.1MB in the beginning and 83.3MB in the end (delta: -22.2MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. [2024-11-07 23:27:28,951 INFO L158 Benchmark]: Witness Printer took 54.97ms. Allocated memory is still 192.9MB. Free memory was 82.8MB in the beginning and 78.5MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 23:27:28,952 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 117.4MB. Free memory is still 80.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 352.98ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 66.9MB in the end (delta: 23.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.93ms. Allocated memory is still 117.4MB. Free memory was 66.9MB in the beginning and 64.2MB in the end (delta: 2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 41.47ms. Allocated memory is still 117.4MB. Free memory was 64.2MB in the beginning and 60.6MB in the end (delta: 3.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 766.16ms. Allocated memory is still 117.4MB. Free memory was 60.5MB in the beginning and 61.7MB in the end (delta: -1.3MB). Peak memory consumption was 36.1MB. Max. memory is 16.1GB. * TraceAbstraction took 1331.80ms. Allocated memory was 117.4MB in the beginning and 192.9MB in the end (delta: 75.5MB). Free memory was 61.1MB in the beginning and 83.3MB in the end (delta: -22.2MB). Peak memory consumption was 47.4MB. Max. memory is 16.1GB. * Witness Printer took 54.97ms. Allocated memory is still 192.9MB. Free memory was 82.8MB in the beginning and 78.5MB in the end (delta: 4.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 774]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 774]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 810]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 810]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 49 locations, 10 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.2s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 63 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 57 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 142 IncrementalHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 0 mSDtfsCounter, 142 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=73occurred in iteration=1, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 96 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-07 23:27:28,973 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