./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/pthread-wmm/mix056_power.oepc_pso.oepc_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) 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/AutomizerMemDerefMemtrack.xml', '-i', '../sv-benchmarks/c/pthread-wmm/mix056_power.oepc_pso.oepc_rmo.oepc.i', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) )\nCHECK( init(main()), LTL(G valid-deref) )\nCHECK( init(main()), LTL(G valid-memtrack) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '40cdaf120a3550cc54773a608bdbc3a68dee1334013ab0b4984b9366bf820a3d'] 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/mix056_power.oepc_pso.oepc_rmo.oepc.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 40cdaf120a3550cc54773a608bdbc3a68dee1334013ab0b4984b9366bf820a3d --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 19:15:35,325 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 19:15:35,420 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-07 19:15:35,425 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 19:15:35,425 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 19:15:35,442 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 19:15:35,443 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 19:15:35,443 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 19:15:35,444 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 19:15:35,444 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 19:15:35,444 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 19:15:35,444 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 19:15:35,445 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 19:15:35,445 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 19:15:35,445 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 19:15:35,446 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 19:15:35,446 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 19:15:35,446 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 19:15:35,446 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 19:15:35,446 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 19:15:35,446 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 19:15:35,446 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 19:15:35,446 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 19:15:35,446 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 19:15:35,446 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 19:15:35,446 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 19:15:35,446 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 19:15:35,446 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 19:15:35,446 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 19:15:35,446 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 19:15:35,446 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 19:15:35,446 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 19:15:35,446 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 19:15:35,446 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:15:35,446 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 19:15:35,446 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 19:15:35,446 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 19:15:35,447 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 19:15:35,447 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 19:15:35,447 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 19:15:35,447 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 19:15:35,447 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 19:15:35,447 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 40cdaf120a3550cc54773a608bdbc3a68dee1334013ab0b4984b9366bf820a3d [2024-11-07 19:15:35,646 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 19:15:35,650 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 19:15:35,652 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 19:15:35,652 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 19:15:35,652 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 19:15:35,653 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix056_power.oepc_pso.oepc_rmo.oepc.i [2024-11-07 19:15:36,776 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 19:15:37,008 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 19:15:37,009 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix056_power.oepc_pso.oepc_rmo.oepc.i [2024-11-07 19:15:37,018 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bc41ae335/11dd16fc891d41c19339b50a48e85be1/FLAG45085aff3 [2024-11-07 19:15:37,336 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/bc41ae335/11dd16fc891d41c19339b50a48e85be1 [2024-11-07 19:15:37,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 19:15:37,339 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 19:15:37,340 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 19:15:37,341 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 19:15:37,344 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 19:15:37,344 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:15:37" (1/1) ... [2024-11-07 19:15:37,344 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5390fc27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:37, skipping insertion in model container [2024-11-07 19:15:37,345 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:15:37" (1/1) ... [2024-11-07 19:15:37,375 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 19:15:37,588 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:15:37,598 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 19:15:37,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:15:37,666 INFO L204 MainTranslator]: Completed translation [2024-11-07 19:15:37,667 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:37 WrapperNode [2024-11-07 19:15:37,667 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 19:15:37,668 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 19:15:37,668 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 19:15:37,668 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 19:15:37,672 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:37" (1/1) ... [2024-11-07 19:15:37,681 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:37" (1/1) ... [2024-11-07 19:15:37,695 INFO L138 Inliner]: procedures = 175, calls = 43, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 118 [2024-11-07 19:15:37,695 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 19:15:37,696 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 19:15:37,696 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 19:15:37,696 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 19:15:37,701 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:37" (1/1) ... [2024-11-07 19:15:37,701 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:37" (1/1) ... [2024-11-07 19:15:37,703 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:37" (1/1) ... [2024-11-07 19:15:37,718 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 19:15:37,722 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:37" (1/1) ... [2024-11-07 19:15:37,722 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:37" (1/1) ... [2024-11-07 19:15:37,728 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:37" (1/1) ... [2024-11-07 19:15:37,729 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:37" (1/1) ... [2024-11-07 19:15:37,730 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:37" (1/1) ... [2024-11-07 19:15:37,731 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:37" (1/1) ... [2024-11-07 19:15:37,732 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 19:15:37,733 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 19:15:37,733 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 19:15:37,733 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 19:15:37,733 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:37" (1/1) ... [2024-11-07 19:15:37,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:15:37,753 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:15:37,766 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 19:15:37,768 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 19:15:37,784 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-07 19:15:37,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 19:15:37,785 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-07 19:15:37,785 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-07 19:15:37,785 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-07 19:15:37,786 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-07 19:15:37,786 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-07 19:15:37,786 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-07 19:15:37,786 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 19:15:37,786 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-07 19:15:37,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 19:15:37,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 19:15:37,787 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 19:15:37,888 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 19:15:37,889 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 19:15:38,106 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 19:15:38,106 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 19:15:38,230 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 19:15:38,231 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 19:15:38,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:15:38 BoogieIcfgContainer [2024-11-07 19:15:38,231 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 19:15:38,233 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 19:15:38,233 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 19:15:38,237 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 19:15:38,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:15:37" (1/3) ... [2024-11-07 19:15:38,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c2ef04f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:15:38, skipping insertion in model container [2024-11-07 19:15:38,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:37" (2/3) ... [2024-11-07 19:15:38,238 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c2ef04f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:15:38, skipping insertion in model container [2024-11-07 19:15:38,239 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:15:38" (3/3) ... [2024-11-07 19:15:38,239 INFO L112 eAbstractionObserver]: Analyzing ICFG mix056_power.oepc_pso.oepc_rmo.oepc.i [2024-11-07 19:15:38,249 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 19:15:38,250 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-07 19:15:38,250 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 19:15:38,291 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-07 19:15:38,314 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 44 transitions, 100 flow [2024-11-07 19:15:38,337 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2024-11-07 19:15:38,341 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 19:15:38,343 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2024-11-07 19:15:38,343 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 44 transitions, 100 flow [2024-11-07 19:15:38,346 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 41 transitions, 91 flow [2024-11-07 19:15:38,351 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 19:15:38,361 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=None, 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;@9382a9e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 19:15:38,361 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-07 19:15:38,365 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 19:15:38,365 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-07 19:15:38,365 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 19:15:38,365 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:15:38,366 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-07 19:15:38,366 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-07 19:15:38,369 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:15:38,369 INFO L85 PathProgramCache]: Analyzing trace with hash 11938460, now seen corresponding path program 1 times [2024-11-07 19:15:38,374 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:15:38,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637635889] [2024-11-07 19:15:38,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:15:38,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:15:38,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:15:38,707 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 19:15:38,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:15:38,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637635889] [2024-11-07 19:15:38,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637635889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:15:38,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:15:38,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 19:15:38,712 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078833189] [2024-11-07 19:15:38,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:15:38,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:15:38,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:15:38,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:15:38,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:15:38,733 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-11-07 19:15:38,734 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 91 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 19:15:38,735 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:15:38,735 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-11-07 19:15:38,735 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:15:39,079 INFO L124 PetriNetUnfolderBase]: 825/1536 cut-off events. [2024-11-07 19:15:39,080 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-07 19:15:39,086 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2817 conditions, 1536 events. 825/1536 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 10048 event pairs, 129 based on Foata normal form. 96/1621 useless extension candidates. Maximal degree in co-relation 2806. Up to 1009 conditions per place. [2024-11-07 19:15:39,095 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 33 selfloop transitions, 2 changer transitions 2/53 dead transitions. [2024-11-07 19:15:39,096 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 53 transitions, 195 flow [2024-11-07 19:15:39,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:15:39,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 19:15:39,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2024-11-07 19:15:39,106 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-11-07 19:15:39,107 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 91 flow. Second operand 3 states and 99 transitions. [2024-11-07 19:15:39,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 53 transitions, 195 flow [2024-11-07 19:15:39,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 53 transitions, 190 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 19:15:39,113 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 82 flow [2024-11-07 19:15:39,115 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2024-11-07 19:15:39,118 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2024-11-07 19:15:39,119 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 82 flow [2024-11-07 19:15:39,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 19:15:39,119 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:15:39,119 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:15:39,119 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 19:15:39,119 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-07 19:15:39,120 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:15:39,120 INFO L85 PathProgramCache]: Analyzing trace with hash 790786991, now seen corresponding path program 1 times [2024-11-07 19:15:39,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:15:39,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852803265] [2024-11-07 19:15:39,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:15:39,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:15:39,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:15:39,186 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 19:15:39,187 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:15:39,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852803265] [2024-11-07 19:15:39,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852803265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:15:39,187 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:15:39,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 19:15:39,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327575586] [2024-11-07 19:15:39,187 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:15:39,188 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:15:39,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:15:39,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:15:39,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:15:39,188 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44 [2024-11-07 19:15:39,189 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 19:15:39,189 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:15:39,189 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44 [2024-11-07 19:15:39,189 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:15:39,375 INFO L124 PetriNetUnfolderBase]: 721/1385 cut-off events. [2024-11-07 19:15:39,375 INFO L125 PetriNetUnfolderBase]: For 92/92 co-relation queries the response was YES. [2024-11-07 19:15:39,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2605 conditions, 1385 events. 721/1385 cut-off events. For 92/92 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 8892 event pairs, 721 based on Foata normal form. 48/1394 useless extension candidates. Maximal degree in co-relation 2595. Up to 1090 conditions per place. [2024-11-07 19:15:39,381 INFO L140 encePairwiseOnDemand]: 42/44 looper letters, 18 selfloop transitions, 1 changer transitions 1/35 dead transitions. [2024-11-07 19:15:39,381 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 35 transitions, 120 flow [2024-11-07 19:15:39,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:15:39,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 19:15:39,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2024-11-07 19:15:39,383 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5681818181818182 [2024-11-07 19:15:39,383 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 82 flow. Second operand 3 states and 75 transitions. [2024-11-07 19:15:39,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 35 transitions, 120 flow [2024-11-07 19:15:39,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 35 transitions, 116 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 19:15:39,385 INFO L231 Difference]: Finished difference. Result has 44 places, 34 transitions, 76 flow [2024-11-07 19:15:39,385 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=35, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=76, PETRI_PLACES=44, PETRI_TRANSITIONS=34} [2024-11-07 19:15:39,386 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, -5 predicate places. [2024-11-07 19:15:39,386 INFO L471 AbstractCegarLoop]: Abstraction has has 44 places, 34 transitions, 76 flow [2024-11-07 19:15:39,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.0) internal successors, (66), 3 states have internal predecessors, (66), 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 19:15:39,386 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:15:39,386 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:15:39,386 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 19:15:39,386 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-07 19:15:39,387 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:15:39,387 INFO L85 PathProgramCache]: Analyzing trace with hash 790788574, now seen corresponding path program 1 times [2024-11-07 19:15:39,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:15:39,387 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208721427] [2024-11-07 19:15:39,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:15:39,387 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:15:39,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:15:39,577 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 19:15:39,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:15:39,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208721427] [2024-11-07 19:15:39,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208721427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:15:39,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:15:39,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:15:39,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716973633] [2024-11-07 19:15:39,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:15:39,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:15:39,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:15:39,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:15:39,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:15:39,591 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 44 [2024-11-07 19:15:39,591 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 44 places, 34 transitions, 76 flow. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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 19:15:39,592 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:15:39,592 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 44 [2024-11-07 19:15:39,592 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:15:40,444 INFO L124 PetriNetUnfolderBase]: 5113/8134 cut-off events. [2024-11-07 19:15:40,445 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 19:15:40,455 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15698 conditions, 8134 events. 5113/8134 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 463. Compared 55092 event pairs, 1099 based on Foata normal form. 0/7882 useless extension candidates. Maximal degree in co-relation 15692. Up to 2475 conditions per place. [2024-11-07 19:15:40,472 INFO L140 encePairwiseOnDemand]: 34/44 looper letters, 37 selfloop transitions, 6 changer transitions 79/131 dead transitions. [2024-11-07 19:15:40,472 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 131 transitions, 516 flow [2024-11-07 19:15:40,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:15:40,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:15:40,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 241 transitions. [2024-11-07 19:15:40,474 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6085858585858586 [2024-11-07 19:15:40,474 INFO L175 Difference]: Start difference. First operand has 44 places, 34 transitions, 76 flow. Second operand 9 states and 241 transitions. [2024-11-07 19:15:40,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 131 transitions, 516 flow [2024-11-07 19:15:40,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 131 transitions, 515 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 19:15:40,479 INFO L231 Difference]: Finished difference. Result has 58 places, 38 transitions, 157 flow [2024-11-07 19:15:40,479 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=157, PETRI_PLACES=58, PETRI_TRANSITIONS=38} [2024-11-07 19:15:40,480 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 9 predicate places. [2024-11-07 19:15:40,480 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 38 transitions, 157 flow [2024-11-07 19:15:40,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 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 19:15:40,480 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:15:40,480 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:15:40,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 19:15:40,480 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-07 19:15:40,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:15:40,481 INFO L85 PathProgramCache]: Analyzing trace with hash -1047993139, now seen corresponding path program 1 times [2024-11-07 19:15:40,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:15:40,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1292360910] [2024-11-07 19:15:40,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:15:40,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:15:40,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:15:40,631 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 19:15:40,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:15:40,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1292360910] [2024-11-07 19:15:40,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1292360910] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:15:40,632 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:15:40,632 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:15:40,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818806679] [2024-11-07 19:15:40,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:15:40,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 19:15:40,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:15:40,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 19:15:40,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 19:15:40,644 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 44 [2024-11-07 19:15:40,644 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 38 transitions, 157 flow. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 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 19:15:40,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:15:40,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 44 [2024-11-07 19:15:40,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:15:41,460 INFO L124 PetriNetUnfolderBase]: 3717/6162 cut-off events. [2024-11-07 19:15:41,460 INFO L125 PetriNetUnfolderBase]: For 7609/7616 co-relation queries the response was YES. [2024-11-07 19:15:41,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17246 conditions, 6162 events. 3717/6162 cut-off events. For 7609/7616 co-relation queries the response was YES. Maximal size of possible extension queue 349. Compared 41979 event pairs, 311 based on Foata normal form. 181/6334 useless extension candidates. Maximal degree in co-relation 17231. Up to 2309 conditions per place. [2024-11-07 19:15:41,486 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 45 selfloop transitions, 10 changer transitions 62/126 dead transitions. [2024-11-07 19:15:41,487 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 126 transitions, 759 flow [2024-11-07 19:15:41,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 19:15:41,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 19:15:41,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 243 transitions. [2024-11-07 19:15:41,489 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5522727272727272 [2024-11-07 19:15:41,490 INFO L175 Difference]: Start difference. First operand has 58 places, 38 transitions, 157 flow. Second operand 10 states and 243 transitions. [2024-11-07 19:15:41,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 126 transitions, 759 flow [2024-11-07 19:15:41,511 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 126 transitions, 671 flow, removed 20 selfloop flow, removed 4 redundant places. [2024-11-07 19:15:41,512 INFO L231 Difference]: Finished difference. Result has 65 places, 43 transitions, 225 flow [2024-11-07 19:15:41,512 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=133, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=225, PETRI_PLACES=65, PETRI_TRANSITIONS=43} [2024-11-07 19:15:41,513 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 16 predicate places. [2024-11-07 19:15:41,513 INFO L471 AbstractCegarLoop]: Abstraction has has 65 places, 43 transitions, 225 flow [2024-11-07 19:15:41,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 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 19:15:41,514 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:15:41,514 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:15:41,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 19:15:41,514 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-07 19:15:41,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:15:41,515 INFO L85 PathProgramCache]: Analyzing trace with hash -1565291759, now seen corresponding path program 1 times [2024-11-07 19:15:41,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:15:41,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003012739] [2024-11-07 19:15:41,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:15:41,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:15:41,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:15:41,634 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 19:15:41,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:15:41,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003012739] [2024-11-07 19:15:41,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003012739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:15:41,634 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:15:41,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:15:41,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [110087128] [2024-11-07 19:15:41,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:15:41,635 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 19:15:41,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:15:41,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 19:15:41,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 19:15:41,643 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 44 [2024-11-07 19:15:41,643 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 43 transitions, 225 flow. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 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 19:15:41,644 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:15:41,644 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 44 [2024-11-07 19:15:41,644 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:15:42,274 INFO L124 PetriNetUnfolderBase]: 3540/5848 cut-off events. [2024-11-07 19:15:42,275 INFO L125 PetriNetUnfolderBase]: For 15854/15856 co-relation queries the response was YES. [2024-11-07 19:15:42,287 INFO L83 FinitePrefix]: Finished finitePrefix Result has 18336 conditions, 5848 events. 3540/5848 cut-off events. For 15854/15856 co-relation queries the response was YES. Maximal size of possible extension queue 319. Compared 38696 event pairs, 590 based on Foata normal form. 166/6011 useless extension candidates. Maximal degree in co-relation 18314. Up to 2187 conditions per place. [2024-11-07 19:15:42,304 INFO L140 encePairwiseOnDemand]: 35/44 looper letters, 50 selfloop transitions, 14 changer transitions 60/133 dead transitions. [2024-11-07 19:15:42,304 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 133 transitions, 891 flow [2024-11-07 19:15:42,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 19:15:42,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-07 19:15:42,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 250 transitions. [2024-11-07 19:15:42,305 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5681818181818182 [2024-11-07 19:15:42,305 INFO L175 Difference]: Start difference. First operand has 65 places, 43 transitions, 225 flow. Second operand 10 states and 250 transitions. [2024-11-07 19:15:42,305 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 133 transitions, 891 flow [2024-11-07 19:15:42,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 133 transitions, 835 flow, removed 28 selfloop flow, removed 4 redundant places. [2024-11-07 19:15:42,326 INFO L231 Difference]: Finished difference. Result has 72 places, 48 transitions, 313 flow [2024-11-07 19:15:42,326 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=207, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=43, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=313, PETRI_PLACES=72, PETRI_TRANSITIONS=48} [2024-11-07 19:15:42,327 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 23 predicate places. [2024-11-07 19:15:42,327 INFO L471 AbstractCegarLoop]: Abstraction has has 72 places, 48 transitions, 313 flow [2024-11-07 19:15:42,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 6 states have internal predecessors, (91), 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 19:15:42,327 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:15:42,327 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:15:42,327 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 19:15:42,327 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-07 19:15:42,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:15:42,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1003679150, now seen corresponding path program 1 times [2024-11-07 19:15:42,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:15:42,328 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602504426] [2024-11-07 19:15:42,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:15:42,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:15:42,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:15:42,417 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 19:15:42,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:15:42,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602504426] [2024-11-07 19:15:42,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602504426] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:15:42,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:15:42,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 19:15:42,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [711198876] [2024-11-07 19:15:42,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:15:42,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:15:42,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:15:42,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:15:42,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:15:42,423 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-11-07 19:15:42,424 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 48 transitions, 313 flow. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:15:42,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:15:42,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-11-07 19:15:42,424 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:15:42,990 INFO L124 PetriNetUnfolderBase]: 3882/6589 cut-off events. [2024-11-07 19:15:42,990 INFO L125 PetriNetUnfolderBase]: For 9509/9821 co-relation queries the response was YES. [2024-11-07 19:15:43,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17359 conditions, 6589 events. 3882/6589 cut-off events. For 9509/9821 co-relation queries the response was YES. Maximal size of possible extension queue 308. Compared 44562 event pairs, 592 based on Foata normal form. 432/6898 useless extension candidates. Maximal degree in co-relation 17331. Up to 3481 conditions per place. [2024-11-07 19:15:43,021 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 46 selfloop transitions, 5 changer transitions 0/75 dead transitions. [2024-11-07 19:15:43,022 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 75 transitions, 503 flow [2024-11-07 19:15:43,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 19:15:43,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 19:15:43,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 110 transitions. [2024-11-07 19:15:43,026 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.625 [2024-11-07 19:15:43,026 INFO L175 Difference]: Start difference. First operand has 72 places, 48 transitions, 313 flow. Second operand 4 states and 110 transitions. [2024-11-07 19:15:43,026 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 75 transitions, 503 flow [2024-11-07 19:15:43,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 75 transitions, 477 flow, removed 13 selfloop flow, removed 8 redundant places. [2024-11-07 19:15:43,035 INFO L231 Difference]: Finished difference. Result has 63 places, 52 transitions, 325 flow [2024-11-07 19:15:43,036 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=287, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=325, PETRI_PLACES=63, PETRI_TRANSITIONS=52} [2024-11-07 19:15:43,037 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 14 predicate places. [2024-11-07 19:15:43,037 INFO L471 AbstractCegarLoop]: Abstraction has has 63 places, 52 transitions, 325 flow [2024-11-07 19:15:43,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:15:43,037 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:15:43,037 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] [2024-11-07 19:15:43,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 19:15:43,038 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-07 19:15:43,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:15:43,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1996469162, now seen corresponding path program 1 times [2024-11-07 19:15:43,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:15:43,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [902934812] [2024-11-07 19:15:43,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:15:43,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:15:43,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:15:43,197 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 19:15:43,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:15:43,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [902934812] [2024-11-07 19:15:43,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [902934812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:15:43,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:15:43,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:15:43,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031477865] [2024-11-07 19:15:43,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:15:43,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:15:43,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:15:43,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:15:43,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:15:43,202 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-11-07 19:15:43,203 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 52 transitions, 325 flow. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 19:15:43,203 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:15:43,203 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-11-07 19:15:43,203 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:15:43,838 INFO L124 PetriNetUnfolderBase]: 4418/7962 cut-off events. [2024-11-07 19:15:43,838 INFO L125 PetriNetUnfolderBase]: For 10666/10917 co-relation queries the response was YES. [2024-11-07 19:15:43,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22422 conditions, 7962 events. 4418/7962 cut-off events. For 10666/10917 co-relation queries the response was YES. Maximal size of possible extension queue 474. Compared 62765 event pairs, 1894 based on Foata normal form. 313/7829 useless extension candidates. Maximal degree in co-relation 22398. Up to 3142 conditions per place. [2024-11-07 19:15:43,870 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 52 selfloop transitions, 13 changer transitions 20/106 dead transitions. [2024-11-07 19:15:43,871 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 106 transitions, 724 flow [2024-11-07 19:15:43,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 19:15:43,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-07 19:15:43,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 179 transitions. [2024-11-07 19:15:43,873 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5811688311688312 [2024-11-07 19:15:43,873 INFO L175 Difference]: Start difference. First operand has 63 places, 52 transitions, 325 flow. Second operand 7 states and 179 transitions. [2024-11-07 19:15:43,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 106 transitions, 724 flow [2024-11-07 19:15:43,883 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 106 transitions, 718 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-07 19:15:43,885 INFO L231 Difference]: Finished difference. Result has 73 places, 57 transitions, 413 flow [2024-11-07 19:15:43,886 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=319, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=42, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=413, PETRI_PLACES=73, PETRI_TRANSITIONS=57} [2024-11-07 19:15:43,886 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 24 predicate places. [2024-11-07 19:15:43,886 INFO L471 AbstractCegarLoop]: Abstraction has has 73 places, 57 transitions, 413 flow [2024-11-07 19:15:43,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 19:15:43,887 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:15:43,887 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] [2024-11-07 19:15:43,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 19:15:43,887 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-07 19:15:43,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:15:43,887 INFO L85 PathProgramCache]: Analyzing trace with hash -1988913393, now seen corresponding path program 1 times [2024-11-07 19:15:43,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:15:43,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074608746] [2024-11-07 19:15:43,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:15:43,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:15:43,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:15:44,051 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 19:15:44,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:15:44,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074608746] [2024-11-07 19:15:44,052 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074608746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:15:44,052 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:15:44,052 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:15:44,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336493486] [2024-11-07 19:15:44,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:15:44,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:15:44,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:15:44,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:15:44,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:15:44,057 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-11-07 19:15:44,057 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 57 transitions, 413 flow. Second operand has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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 19:15:44,057 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:15:44,057 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-11-07 19:15:44,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:15:44,577 INFO L124 PetriNetUnfolderBase]: 4293/7171 cut-off events. [2024-11-07 19:15:44,577 INFO L125 PetriNetUnfolderBase]: For 7985/8265 co-relation queries the response was YES. [2024-11-07 19:15:44,596 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19970 conditions, 7171 events. 4293/7171 cut-off events. For 7985/8265 co-relation queries the response was YES. Maximal size of possible extension queue 346. Compared 47750 event pairs, 564 based on Foata normal form. 516/7534 useless extension candidates. Maximal degree in co-relation 19941. Up to 2149 conditions per place. [2024-11-07 19:15:44,646 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 59 selfloop transitions, 8 changer transitions 3/96 dead transitions. [2024-11-07 19:15:44,646 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 96 transitions, 694 flow [2024-11-07 19:15:44,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:15:44,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:15:44,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 140 transitions. [2024-11-07 19:15:44,651 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2024-11-07 19:15:44,651 INFO L175 Difference]: Start difference. First operand has 73 places, 57 transitions, 413 flow. Second operand 5 states and 140 transitions. [2024-11-07 19:15:44,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 96 transitions, 694 flow [2024-11-07 19:15:44,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 96 transitions, 668 flow, removed 9 selfloop flow, removed 1 redundant places. [2024-11-07 19:15:44,664 INFO L231 Difference]: Finished difference. Result has 78 places, 58 transitions, 415 flow [2024-11-07 19:15:44,665 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=415, PETRI_PLACES=78, PETRI_TRANSITIONS=58} [2024-11-07 19:15:44,665 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 29 predicate places. [2024-11-07 19:15:44,665 INFO L471 AbstractCegarLoop]: Abstraction has has 78 places, 58 transitions, 415 flow [2024-11-07 19:15:44,665 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.8) internal successors, (89), 5 states have internal predecessors, (89), 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 19:15:44,665 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:15:44,666 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] [2024-11-07 19:15:44,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 19:15:44,666 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-07 19:15:44,666 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:15:44,666 INFO L85 PathProgramCache]: Analyzing trace with hash 254543804, now seen corresponding path program 1 times [2024-11-07 19:15:44,666 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:15:44,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1557368478] [2024-11-07 19:15:44,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:15:44,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:15:44,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:15:44,872 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 19:15:44,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:15:44,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1557368478] [2024-11-07 19:15:44,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1557368478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:15:44,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:15:44,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:15:44,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528591052] [2024-11-07 19:15:44,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:15:44,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 19:15:44,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:15:44,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 19:15:44,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-07 19:15:44,881 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-11-07 19:15:44,882 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 58 transitions, 415 flow. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 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 19:15:44,882 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:15:44,882 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-11-07 19:15:44,882 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:15:45,406 INFO L124 PetriNetUnfolderBase]: 3365/5519 cut-off events. [2024-11-07 19:15:45,407 INFO L125 PetriNetUnfolderBase]: For 9149/9389 co-relation queries the response was YES. [2024-11-07 19:15:45,421 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17255 conditions, 5519 events. 3365/5519 cut-off events. For 9149/9389 co-relation queries the response was YES. Maximal size of possible extension queue 337. Compared 35603 event pairs, 510 based on Foata normal form. 284/5650 useless extension candidates. Maximal degree in co-relation 17223. Up to 2012 conditions per place. [2024-11-07 19:15:45,426 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 49 selfloop transitions, 11 changer transitions 9/88 dead transitions. [2024-11-07 19:15:45,426 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 88 transitions, 632 flow [2024-11-07 19:15:45,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 19:15:45,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 19:15:45,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 152 transitions. [2024-11-07 19:15:45,427 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5757575757575758 [2024-11-07 19:15:45,427 INFO L175 Difference]: Start difference. First operand has 78 places, 58 transitions, 415 flow. Second operand 6 states and 152 transitions. [2024-11-07 19:15:45,427 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 88 transitions, 632 flow [2024-11-07 19:15:45,435 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 88 transitions, 595 flow, removed 15 selfloop flow, removed 7 redundant places. [2024-11-07 19:15:45,437 INFO L231 Difference]: Finished difference. Result has 75 places, 51 transitions, 349 flow [2024-11-07 19:15:45,437 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=367, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=349, PETRI_PLACES=75, PETRI_TRANSITIONS=51} [2024-11-07 19:15:45,438 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 26 predicate places. [2024-11-07 19:15:45,438 INFO L471 AbstractCegarLoop]: Abstraction has has 75 places, 51 transitions, 349 flow [2024-11-07 19:15:45,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 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 19:15:45,438 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:15:45,438 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, 1, 1, 1] [2024-11-07 19:15:45,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 19:15:45,439 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-07 19:15:45,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:15:45,439 INFO L85 PathProgramCache]: Analyzing trace with hash -1418381353, now seen corresponding path program 1 times [2024-11-07 19:15:45,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:15:45,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885471019] [2024-11-07 19:15:45,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:15:45,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:15:45,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:15:46,435 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 19:15:46,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:15:46,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885471019] [2024-11-07 19:15:46,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885471019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:15:46,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:15:46,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 19:15:46,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708124388] [2024-11-07 19:15:46,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:15:46,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:15:46,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:15:46,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:15:46,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-07 19:15:46,443 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 17 out of 44 [2024-11-07 19:15:46,444 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 51 transitions, 349 flow. Second operand has 9 states, 9 states have (on average 18.88888888888889) internal successors, (170), 9 states have internal predecessors, (170), 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 19:15:46,444 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:15:46,444 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 17 of 44 [2024-11-07 19:15:46,444 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:15:46,907 INFO L124 PetriNetUnfolderBase]: 1586/3204 cut-off events. [2024-11-07 19:15:46,908 INFO L125 PetriNetUnfolderBase]: For 5259/5658 co-relation queries the response was YES. [2024-11-07 19:15:46,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9359 conditions, 3204 events. 1586/3204 cut-off events. For 5259/5658 co-relation queries the response was YES. Maximal size of possible extension queue 310. Compared 24701 event pairs, 486 based on Foata normal form. 81/2960 useless extension candidates. Maximal degree in co-relation 9330. Up to 934 conditions per place. [2024-11-07 19:15:46,921 INFO L140 encePairwiseOnDemand]: 36/44 looper letters, 31 selfloop transitions, 5 changer transitions 32/98 dead transitions. [2024-11-07 19:15:46,922 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 98 transitions, 647 flow [2024-11-07 19:15:46,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-07 19:15:46,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-07 19:15:46,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 202 transitions. [2024-11-07 19:15:46,925 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5738636363636364 [2024-11-07 19:15:46,925 INFO L175 Difference]: Start difference. First operand has 75 places, 51 transitions, 349 flow. Second operand 8 states and 202 transitions. [2024-11-07 19:15:46,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 98 transitions, 647 flow [2024-11-07 19:15:46,938 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 98 transitions, 531 flow, removed 26 selfloop flow, removed 14 redundant places. [2024-11-07 19:15:46,939 INFO L231 Difference]: Finished difference. Result has 71 places, 52 transitions, 283 flow [2024-11-07 19:15:46,940 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=257, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=283, PETRI_PLACES=71, PETRI_TRANSITIONS=52} [2024-11-07 19:15:46,941 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 22 predicate places. [2024-11-07 19:15:46,941 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 52 transitions, 283 flow [2024-11-07 19:15:46,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 18.88888888888889) internal successors, (170), 9 states have internal predecessors, (170), 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 19:15:46,941 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:15:46,942 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, 1, 1, 1] [2024-11-07 19:15:46,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 19:15:46,942 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-07 19:15:46,942 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:15:46,942 INFO L85 PathProgramCache]: Analyzing trace with hash 158383959, now seen corresponding path program 2 times [2024-11-07 19:15:46,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:15:46,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131285115] [2024-11-07 19:15:46,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:15:46,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:15:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 19:15:47,008 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 19:15:47,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 19:15:47,093 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-07 19:15:47,094 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 19:15:47,094 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2024-11-07 19:15:47,096 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2024-11-07 19:15:47,096 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2024-11-07 19:15:47,096 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-11-07 19:15:47,096 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-11-07 19:15:47,096 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2024-11-07 19:15:47,096 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2024-11-07 19:15:47,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 19:15:47,097 INFO L407 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:15:47,167 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 19:15:47,167 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 19:15:47,171 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 07:15:47 BasicIcfg [2024-11-07 19:15:47,171 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 19:15:47,172 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 19:15:47,172 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 19:15:47,172 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 19:15:47,173 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:15:38" (3/4) ... [2024-11-07 19:15:47,174 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-07 19:15:47,175 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 19:15:47,176 INFO L158 Benchmark]: Toolchain (without parser) took 9836.24ms. Allocated memory was 117.4MB in the beginning and 939.5MB in the end (delta: 822.1MB). Free memory was 90.7MB in the beginning and 368.1MB in the end (delta: -277.4MB). Peak memory consumption was 549.4MB. Max. memory is 16.1GB. [2024-11-07 19:15:47,176 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 19:15:47,176 INFO L158 Benchmark]: CACSL2BoogieTranslator took 327.87ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 67.1MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-07 19:15:47,177 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.35ms. Allocated memory is still 117.4MB. Free memory was 67.1MB in the beginning and 65.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 19:15:47,177 INFO L158 Benchmark]: Boogie Preprocessor took 36.46ms. Allocated memory is still 117.4MB. Free memory was 65.0MB in the beginning and 61.9MB in the end (delta: 3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 19:15:47,178 INFO L158 Benchmark]: RCFGBuilder took 498.55ms. Allocated memory is still 117.4MB. Free memory was 61.9MB in the beginning and 58.5MB in the end (delta: 3.4MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2024-11-07 19:15:47,179 INFO L158 Benchmark]: TraceAbstraction took 8937.27ms. Allocated memory was 117.4MB in the beginning and 939.5MB in the end (delta: 822.1MB). Free memory was 58.0MB in the beginning and 368.4MB in the end (delta: -310.4MB). Peak memory consumption was 510.8MB. Max. memory is 16.1GB. [2024-11-07 19:15:47,181 INFO L158 Benchmark]: Witness Printer took 2.73ms. Allocated memory is still 939.5MB. Free memory was 368.4MB in the beginning and 368.1MB in the end (delta: 247.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 19:15:47,182 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 117.4MB. Free memory is still 81.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 327.87ms. Allocated memory is still 117.4MB. Free memory was 90.5MB in the beginning and 67.1MB in the end (delta: 23.4MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.35ms. Allocated memory is still 117.4MB. Free memory was 67.1MB in the beginning and 65.0MB in the end (delta: 2.1MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 36.46ms. Allocated memory is still 117.4MB. Free memory was 65.0MB in the beginning and 61.9MB in the end (delta: 3.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * RCFGBuilder took 498.55ms. Allocated memory is still 117.4MB. Free memory was 61.9MB in the beginning and 58.5MB in the end (delta: 3.4MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * TraceAbstraction took 8937.27ms. Allocated memory was 117.4MB in the beginning and 939.5MB in the end (delta: 822.1MB). Free memory was 58.0MB in the beginning and 368.4MB in the end (delta: -310.4MB). Peak memory consumption was 510.8MB. Max. memory is 16.1GB. * Witness Printer took 2.73ms. Allocated memory is still 939.5MB. Free memory was 368.4MB in the beginning and 368.1MB in the end (delta: 247.7kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p2_EAX = 0; [L712] 0 _Bool main$tmp_guard0; [L713] 0 _Bool main$tmp_guard1; [L715] 0 int x = 0; [L717] 0 int y = 0; [L719] 0 int z = 0; [L720] 0 _Bool z$flush_delayed; [L721] 0 int z$mem_tmp; [L722] 0 _Bool z$r_buff0_thd0; [L723] 0 _Bool z$r_buff0_thd1; [L724] 0 _Bool z$r_buff0_thd2; [L725] 0 _Bool z$r_buff0_thd3; [L726] 0 _Bool z$r_buff1_thd0; [L727] 0 _Bool z$r_buff1_thd1; [L728] 0 _Bool z$r_buff1_thd2; [L729] 0 _Bool z$r_buff1_thd3; [L730] 0 _Bool z$read_delayed; [L731] 0 int *z$read_delayed_var; [L732] 0 int z$w_buff0; [L733] 0 _Bool z$w_buff0_used; [L734] 0 int z$w_buff1; [L735] 0 _Bool z$w_buff1_used; [L736] 0 _Bool weak$$choice0; [L737] 0 _Bool weak$$choice2; [L831] 0 pthread_t t1489; [L832] FCALL, FORK 0 pthread_create(&t1489, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1489=-1, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L833] 0 pthread_t t1490; [L834] FCALL, FORK 0 pthread_create(&t1490, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1489=-1, t1490=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L835] 0 pthread_t t1491; [L836] FCALL, FORK 0 pthread_create(&t1491, ((void *)0), P2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1489=-1, t1490=0, t1491=1, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L741] 1 z$w_buff1 = z$w_buff0 [L742] 1 z$w_buff0 = 1 [L743] 1 z$w_buff1_used = z$w_buff0_used [L744] 1 z$w_buff0_used = (_Bool)1 [L745] CALL 1 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L745] RET 1 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L746] 1 z$r_buff1_thd0 = z$r_buff0_thd0 [L747] 1 z$r_buff1_thd1 = z$r_buff0_thd1 [L748] 1 z$r_buff1_thd2 = z$r_buff0_thd2 [L749] 1 z$r_buff1_thd3 = z$r_buff0_thd3 [L750] 1 z$r_buff0_thd1 = (_Bool)1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L753] 1 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L770] 2 x = 2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L773] 2 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L790] 3 y = 2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L776] 2 z = z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L777] 2 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used [L778] 2 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$w_buff1_used [L779] 2 z$r_buff0_thd2 = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2 [L780] 2 z$r_buff1_thd2 = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L793] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L794] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L795] 3 z$flush_delayed = weak$$choice2 [L796] 3 z$mem_tmp = z [L797] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L798] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L799] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L800] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L801] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L802] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L803] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L804] 3 __unbuffered_p2_EAX = z [L805] 3 z = z$flush_delayed ? z$mem_tmp : z [L806] 3 z$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L809] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L810] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L811] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L812] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L813] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L756] 1 z = z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z) [L757] 1 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used [L758] 1 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$w_buff1_used [L759] 1 z$r_buff0_thd1 = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1 [L760] 1 z$r_buff1_thd1 = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$r_buff1_thd1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L763] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L783] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L816] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L838] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1489=-1, t1490=0, t1491=1, weak$$choice0=0, weak$$choice2=1, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L840] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L840] RET 0 assume_abort_if_not(main$tmp_guard0) [L842] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L843] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L844] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L845] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L846] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1489=-1, t1490=0, t1491=1, weak$$choice0=0, weak$$choice2=1, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L849] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1489=-1, t1490=0, t1491=1, weak$$choice0=0, weak$$choice2=1, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L851] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L17] 0 __assert_fail ("0", "mix056_power.oepc_pso.oepc_rmo.oepc.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=1, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 829]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 832]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 834]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 836]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 68 locations, 7 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: 8.8s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 545 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 516 mSDsluCounter, 149 SdHoareTripleChecker+Invalid, 1.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 100 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1261 IncrementalHoareTripleChecker+Invalid, 1309 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 49 mSDtfsCounter, 1261 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=415occurred in iteration=8, InterpolantAutomatonStates: 65, 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, 0.3s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 216 NumberOfCodeBlocks, 216 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 176 ConstructedInterpolants, 0 QuantifiedInterpolants, 857 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-07 19:15:47,205 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/pthread-wmm/mix056_power.oepc_pso.oepc_rmo.oepc.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 40cdaf120a3550cc54773a608bdbc3a68dee1334013ab0b4984b9366bf820a3d --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 19:15:49,021 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 19:15:49,126 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2024-11-07 19:15:49,130 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 19:15:49,131 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 19:15:49,147 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 19:15:49,147 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 19:15:49,148 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 19:15:49,151 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 19:15:49,151 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 19:15:49,151 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 19:15:49,151 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 19:15:49,152 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 19:15:49,152 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 19:15:49,152 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 19:15:49,152 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 19:15:49,152 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 19:15:49,152 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 19:15:49,152 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 19:15:49,152 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 19:15:49,152 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 19:15:49,152 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 19:15:49,152 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 19:15:49,152 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 19:15:49,152 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 19:15:49,152 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-11-07 19:15:49,152 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 19:15:49,152 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-11-07 19:15:49,152 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 19:15:49,152 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 19:15:49,153 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 19:15:49,153 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 19:15:49,153 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 19:15:49,153 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 19:15:49,153 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 19:15:49,153 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:15:49,153 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 19:15:49,153 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 19:15:49,153 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-11-07 19:15:49,153 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-11-07 19:15:49,153 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 19:15:49,153 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 19:15:49,153 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 19:15:49,153 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 19:15:49,153 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 40cdaf120a3550cc54773a608bdbc3a68dee1334013ab0b4984b9366bf820a3d [2024-11-07 19:15:49,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 19:15:49,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 19:15:49,371 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 19:15:49,371 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 19:15:49,372 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 19:15:49,374 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/mix056_power.oepc_pso.oepc_rmo.oepc.i [2024-11-07 19:15:50,555 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 19:15:50,747 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 19:15:50,748 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/pthread-wmm/mix056_power.oepc_pso.oepc_rmo.oepc.i [2024-11-07 19:15:50,763 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cc6e66460/63d53a15fa224393926f4c9e082e8fb9/FLAGba0490010 [2024-11-07 19:15:50,779 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/cc6e66460/63d53a15fa224393926f4c9e082e8fb9 [2024-11-07 19:15:50,781 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 19:15:50,782 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 19:15:50,783 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 19:15:50,783 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 19:15:50,786 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 19:15:50,787 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:15:50" (1/1) ... [2024-11-07 19:15:50,787 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42beeb10 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:50, skipping insertion in model container [2024-11-07 19:15:50,787 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:15:50" (1/1) ... [2024-11-07 19:15:50,816 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 19:15:51,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:15:51,051 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 19:15:51,107 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:15:51,132 INFO L204 MainTranslator]: Completed translation [2024-11-07 19:15:51,133 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:51 WrapperNode [2024-11-07 19:15:51,133 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 19:15:51,134 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 19:15:51,134 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 19:15:51,134 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 19:15:51,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:51" (1/1) ... [2024-11-07 19:15:51,149 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:51" (1/1) ... [2024-11-07 19:15:51,169 INFO L138 Inliner]: procedures = 176, calls = 43, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 119 [2024-11-07 19:15:51,169 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 19:15:51,170 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 19:15:51,170 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 19:15:51,170 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 19:15:51,176 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:51" (1/1) ... [2024-11-07 19:15:51,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:51" (1/1) ... [2024-11-07 19:15:51,180 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:51" (1/1) ... [2024-11-07 19:15:51,196 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 19:15:51,199 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:51" (1/1) ... [2024-11-07 19:15:51,199 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:51" (1/1) ... [2024-11-07 19:15:51,207 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:51" (1/1) ... [2024-11-07 19:15:51,211 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:51" (1/1) ... [2024-11-07 19:15:51,213 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:51" (1/1) ... [2024-11-07 19:15:51,217 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:51" (1/1) ... [2024-11-07 19:15:51,219 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 19:15:51,223 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 19:15:51,223 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 19:15:51,223 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 19:15:51,224 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:51" (1/1) ... [2024-11-07 19:15:51,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:15:51,245 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:15:51,257 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 19:15:51,262 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 19:15:51,278 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-07 19:15:51,278 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 19:15:51,278 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1#0 [2024-11-07 19:15:51,278 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-11-07 19:15:51,279 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-11-07 19:15:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-11-07 19:15:51,279 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-11-07 19:15:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-11-07 19:15:51,279 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-11-07 19:15:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-07 19:15:51,279 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 19:15:51,279 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 19:15:51,280 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 19:15:51,396 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 19:15:51,397 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 19:15:51,630 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 19:15:51,630 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 19:15:51,820 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 19:15:51,820 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 19:15:51,820 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:15:51 BoogieIcfgContainer [2024-11-07 19:15:51,821 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 19:15:51,823 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 19:15:51,823 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 19:15:51,826 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 19:15:51,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:15:50" (1/3) ... [2024-11-07 19:15:51,828 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691a8022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:15:51, skipping insertion in model container [2024-11-07 19:15:51,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:15:51" (2/3) ... [2024-11-07 19:15:51,828 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691a8022 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:15:51, skipping insertion in model container [2024-11-07 19:15:51,828 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:15:51" (3/3) ... [2024-11-07 19:15:51,830 INFO L112 eAbstractionObserver]: Analyzing ICFG mix056_power.oepc_pso.oepc_rmo.oepc.i [2024-11-07 19:15:51,840 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 19:15:51,840 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2024-11-07 19:15:51,840 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 19:15:51,893 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-07 19:15:51,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 52 places, 44 transitions, 100 flow [2024-11-07 19:15:51,952 INFO L124 PetriNetUnfolderBase]: 2/41 cut-off events. [2024-11-07 19:15:51,954 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 19:15:51,959 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 41 events. 2/41 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 78 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 43. Up to 2 conditions per place. [2024-11-07 19:15:51,960 INFO L82 GeneralOperation]: Start removeDead. Operand has 52 places, 44 transitions, 100 flow [2024-11-07 19:15:51,962 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 49 places, 41 transitions, 91 flow [2024-11-07 19:15:51,970 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 19:15:51,980 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=None, 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;@156abc4a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 19:15:51,981 INFO L334 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2024-11-07 19:15:51,984 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 19:15:51,985 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-11-07 19:15:51,985 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 19:15:51,985 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:15:51,985 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-07 19:15:51,985 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting P0Err0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-07 19:15:51,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:15:51,989 INFO L85 PathProgramCache]: Analyzing trace with hash 12000028, now seen corresponding path program 1 times [2024-11-07 19:15:51,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:15:51,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [738125148] [2024-11-07 19:15:51,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:15:51,995 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:15:51,995 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:15:51,999 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:15:52,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2024-11-07 19:15:52,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:15:52,065 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 19:15:52,068 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:15:52,088 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 19:15:52,089 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:15:52,089 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:15:52,089 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [738125148] [2024-11-07 19:15:52,090 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [738125148] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:15:52,090 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:15:52,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 19:15:52,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430452321] [2024-11-07 19:15:52,091 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:15:52,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:15:52,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:15:52,117 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:15:52,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:15:52,120 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 19 out of 44 [2024-11-07 19:15:52,124 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 91 flow. Second operand has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 19:15:52,125 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:15:52,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 19 of 44 [2024-11-07 19:15:52,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:15:52,440 INFO L124 PetriNetUnfolderBase]: 825/1536 cut-off events. [2024-11-07 19:15:52,440 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-11-07 19:15:52,443 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2817 conditions, 1536 events. 825/1536 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 10048 event pairs, 129 based on Foata normal form. 96/1621 useless extension candidates. Maximal degree in co-relation 2806. Up to 1009 conditions per place. [2024-11-07 19:15:52,452 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 33 selfloop transitions, 2 changer transitions 2/53 dead transitions. [2024-11-07 19:15:52,453 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 49 places, 53 transitions, 195 flow [2024-11-07 19:15:52,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:15:52,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 19:15:52,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 99 transitions. [2024-11-07 19:15:52,465 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.75 [2024-11-07 19:15:52,466 INFO L175 Difference]: Start difference. First operand has 49 places, 41 transitions, 91 flow. Second operand 3 states and 99 transitions. [2024-11-07 19:15:52,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 49 places, 53 transitions, 195 flow [2024-11-07 19:15:52,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 53 transitions, 190 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-07 19:15:52,471 INFO L231 Difference]: Finished difference. Result has 46 places, 36 transitions, 82 flow [2024-11-07 19:15:52,473 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=82, PETRI_PLACES=46, PETRI_TRANSITIONS=36} [2024-11-07 19:15:52,475 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, -3 predicate places. [2024-11-07 19:15:52,475 INFO L471 AbstractCegarLoop]: Abstraction has has 46 places, 36 transitions, 82 flow [2024-11-07 19:15:52,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 20.0) internal successors, (60), 3 states have internal predecessors, (60), 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 19:15:52,475 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:15:52,475 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:15:52,478 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Ended with exit code 0 [2024-11-07 19:15:52,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:15:52,676 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-07 19:15:52,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:15:52,677 INFO L85 PathProgramCache]: Analyzing trace with hash 184089073, now seen corresponding path program 1 times [2024-11-07 19:15:52,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:15:52,678 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [24058007] [2024-11-07 19:15:52,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:15:52,678 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:15:52,678 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:15:52,680 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:15:52,681 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-11-07 19:15:52,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:15:52,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-07 19:15:52,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:15:52,787 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 19:15:52,787 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:15:52,787 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:15:52,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [24058007] [2024-11-07 19:15:52,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [24058007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:15:52,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:15:52,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 19:15:52,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566839829] [2024-11-07 19:15:52,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:15:52,788 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 19:15:52,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:15:52,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 19:15:52,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 19:15:52,797 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-11-07 19:15:52,798 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 36 transitions, 82 flow. Second operand has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:15:52,798 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:15:52,799 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-11-07 19:15:52,799 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:15:53,143 INFO L124 PetriNetUnfolderBase]: 1680/2956 cut-off events. [2024-11-07 19:15:53,143 INFO L125 PetriNetUnfolderBase]: For 154/154 co-relation queries the response was YES. [2024-11-07 19:15:53,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5689 conditions, 2956 events. 1680/2956 cut-off events. For 154/154 co-relation queries the response was YES. Maximal size of possible extension queue 177. Compared 19135 event pairs, 188 based on Foata normal form. 100/3039 useless extension candidates. Maximal degree in co-relation 5679. Up to 1579 conditions per place. [2024-11-07 19:15:53,157 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 43 selfloop transitions, 5 changer transitions 1/61 dead transitions. [2024-11-07 19:15:53,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 61 transitions, 238 flow [2024-11-07 19:15:53,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 19:15:53,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-07 19:15:53,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 111 transitions. [2024-11-07 19:15:53,159 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6306818181818182 [2024-11-07 19:15:53,159 INFO L175 Difference]: Start difference. First operand has 46 places, 36 transitions, 82 flow. Second operand 4 states and 111 transitions. [2024-11-07 19:15:53,159 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 61 transitions, 238 flow [2024-11-07 19:15:53,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 61 transitions, 230 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-07 19:15:53,161 INFO L231 Difference]: Finished difference. Result has 48 places, 39 transitions, 112 flow [2024-11-07 19:15:53,161 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=78, PETRI_DIFFERENCE_MINUEND_PLACES=43, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=112, PETRI_PLACES=48, PETRI_TRANSITIONS=39} [2024-11-07 19:15:53,161 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2024-11-07 19:15:53,161 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 39 transitions, 112 flow [2024-11-07 19:15:53,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.0) internal successors, (72), 4 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:15:53,162 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:15:53,162 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 19:15:53,165 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-11-07 19:15:53,364 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:15:53,365 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-07 19:15:53,365 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:15:53,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1723652410, now seen corresponding path program 1 times [2024-11-07 19:15:53,366 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:15:53,366 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1636522548] [2024-11-07 19:15:53,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:15:53,366 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:15:53,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:15:53,368 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:15:53,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-11-07 19:15:53,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:15:53,436 INFO L255 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-07 19:15:53,437 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:15:53,468 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 19:15:53,469 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:15:53,469 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:15:53,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1636522548] [2024-11-07 19:15:53,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1636522548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:15:53,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:15:53,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 19:15:53,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245038794] [2024-11-07 19:15:53,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:15:53,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:15:53,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:15:53,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:15:53,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:15:53,485 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-11-07 19:15:53,485 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 39 transitions, 112 flow. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 19:15:53,485 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:15:53,485 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-11-07 19:15:53,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:15:53,763 INFO L124 PetriNetUnfolderBase]: 1038/1834 cut-off events. [2024-11-07 19:15:53,763 INFO L125 PetriNetUnfolderBase]: For 417/417 co-relation queries the response was YES. [2024-11-07 19:15:53,767 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4067 conditions, 1834 events. 1038/1834 cut-off events. For 417/417 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 10288 event pairs, 100 based on Foata normal form. 82/1899 useless extension candidates. Maximal degree in co-relation 4055. Up to 697 conditions per place. [2024-11-07 19:15:53,774 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 54 selfloop transitions, 8 changer transitions 1/75 dead transitions. [2024-11-07 19:15:53,775 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 75 transitions, 331 flow [2024-11-07 19:15:53,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:15:53,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:15:53,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 140 transitions. [2024-11-07 19:15:53,779 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6363636363636364 [2024-11-07 19:15:53,779 INFO L175 Difference]: Start difference. First operand has 48 places, 39 transitions, 112 flow. Second operand 5 states and 140 transitions. [2024-11-07 19:15:53,779 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 75 transitions, 331 flow [2024-11-07 19:15:53,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 75 transitions, 321 flow, removed 1 selfloop flow, removed 2 redundant places. [2024-11-07 19:15:53,782 INFO L231 Difference]: Finished difference. Result has 52 places, 42 transitions, 152 flow [2024-11-07 19:15:53,782 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=104, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=39, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=152, PETRI_PLACES=52, PETRI_TRANSITIONS=42} [2024-11-07 19:15:53,783 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 3 predicate places. [2024-11-07 19:15:53,783 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 42 transitions, 152 flow [2024-11-07 19:15:53,783 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 states have internal predecessors, (90), 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 19:15:53,783 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:15:53,783 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] [2024-11-07 19:15:53,786 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Ended with exit code 0 [2024-11-07 19:15:53,984 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:15:53,984 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-07 19:15:53,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:15:53,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1204954382, now seen corresponding path program 1 times [2024-11-07 19:15:53,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:15:53,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [590936958] [2024-11-07 19:15:53,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:15:53,985 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:15:53,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:15:53,987 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:15:53,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-11-07 19:15:54,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:15:54,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 19:15:54,055 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:15:54,104 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 19:15:54,105 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:15:54,105 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:15:54,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [590936958] [2024-11-07 19:15:54,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [590936958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:15:54,105 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:15:54,105 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:15:54,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223959094] [2024-11-07 19:15:54,105 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:15:54,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 19:15:54,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:15:54,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 19:15:54,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 19:15:54,119 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 15 out of 44 [2024-11-07 19:15:54,120 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 42 transitions, 152 flow. Second operand has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 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 19:15:54,120 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:15:54,120 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 15 of 44 [2024-11-07 19:15:54,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:15:54,335 INFO L124 PetriNetUnfolderBase]: 581/983 cut-off events. [2024-11-07 19:15:54,336 INFO L125 PetriNetUnfolderBase]: For 756/756 co-relation queries the response was YES. [2024-11-07 19:15:54,338 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2517 conditions, 983 events. 581/983 cut-off events. For 756/756 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 4438 event pairs, 83 based on Foata normal form. 40/1006 useless extension candidates. Maximal degree in co-relation 2503. Up to 308 conditions per place. [2024-11-07 19:15:54,341 INFO L140 encePairwiseOnDemand]: 38/44 looper letters, 47 selfloop transitions, 11 changer transitions 1/71 dead transitions. [2024-11-07 19:15:54,341 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 71 transitions, 338 flow [2024-11-07 19:15:54,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 19:15:54,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-07 19:15:54,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 151 transitions. [2024-11-07 19:15:54,343 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.571969696969697 [2024-11-07 19:15:54,343 INFO L175 Difference]: Start difference. First operand has 52 places, 42 transitions, 152 flow. Second operand 6 states and 151 transitions. [2024-11-07 19:15:54,343 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 71 transitions, 338 flow [2024-11-07 19:15:54,346 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 71 transitions, 313 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-07 19:15:54,348 INFO L231 Difference]: Finished difference. Result has 55 places, 42 transitions, 166 flow [2024-11-07 19:15:54,348 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=166, PETRI_PLACES=55, PETRI_TRANSITIONS=42} [2024-11-07 19:15:54,349 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 6 predicate places. [2024-11-07 19:15:54,349 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 42 transitions, 166 flow [2024-11-07 19:15:54,349 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 17.833333333333332) internal successors, (107), 6 states have internal predecessors, (107), 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 19:15:54,349 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:15:54,350 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, 1, 1, 1] [2024-11-07 19:15:54,356 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-11-07 19:15:54,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:15:54,550 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-07 19:15:54,551 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:15:54,551 INFO L85 PathProgramCache]: Analyzing trace with hash 1181984104, now seen corresponding path program 1 times [2024-11-07 19:15:54,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:15:54,551 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [744734842] [2024-11-07 19:15:54,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:15:54,551 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:15:54,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:15:54,553 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:15:54,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2024-11-07 19:15:54,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:15:54,622 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-07 19:15:54,623 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:15:54,665 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 19:15:54,666 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:15:54,666 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:15:54,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [744734842] [2024-11-07 19:15:54,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [744734842] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:15:54,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:15:54,666 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 19:15:54,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437351615] [2024-11-07 19:15:54,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:15:54,666 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:15:54,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:15:54,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:15:54,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:15:54,669 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44 [2024-11-07 19:15:54,669 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 42 transitions, 166 flow. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:15:54,670 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:15:54,670 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44 [2024-11-07 19:15:54,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:15:54,737 INFO L124 PetriNetUnfolderBase]: 307/622 cut-off events. [2024-11-07 19:15:54,738 INFO L125 PetriNetUnfolderBase]: For 259/269 co-relation queries the response was YES. [2024-11-07 19:15:54,739 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1399 conditions, 622 events. 307/622 cut-off events. For 259/269 co-relation queries the response was YES. Maximal size of possible extension queue 40. Compared 3024 event pairs, 288 based on Foata normal form. 8/589 useless extension candidates. Maximal degree in co-relation 1384. Up to 481 conditions per place. [2024-11-07 19:15:54,741 INFO L140 encePairwiseOnDemand]: 42/44 looper letters, 18 selfloop transitions, 1 changer transitions 1/41 dead transitions. [2024-11-07 19:15:54,741 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 41 transitions, 204 flow [2024-11-07 19:15:54,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:15:54,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 19:15:54,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 75 transitions. [2024-11-07 19:15:54,742 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5681818181818182 [2024-11-07 19:15:54,742 INFO L175 Difference]: Start difference. First operand has 55 places, 42 transitions, 166 flow. Second operand 3 states and 75 transitions. [2024-11-07 19:15:54,742 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 41 transitions, 204 flow [2024-11-07 19:15:54,744 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 41 transitions, 148 flow, removed 10 selfloop flow, removed 8 redundant places. [2024-11-07 19:15:54,744 INFO L231 Difference]: Finished difference. Result has 48 places, 40 transitions, 108 flow [2024-11-07 19:15:54,744 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=48, PETRI_TRANSITIONS=40} [2024-11-07 19:15:54,745 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, -1 predicate places. [2024-11-07 19:15:54,745 INFO L471 AbstractCegarLoop]: Abstraction has has 48 places, 40 transitions, 108 flow [2024-11-07 19:15:54,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 19:15:54,745 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:15:54,745 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, 1, 1, 1] [2024-11-07 19:15:54,749 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (6)] Ended with exit code 0 [2024-11-07 19:15:54,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:15:54,946 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-07 19:15:54,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:15:54,946 INFO L85 PathProgramCache]: Analyzing trace with hash 1181985687, now seen corresponding path program 1 times [2024-11-07 19:15:54,947 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:15:54,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [674159567] [2024-11-07 19:15:54,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:15:54,947 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:15:54,947 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:15:54,950 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:15:54,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2024-11-07 19:15:55,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:15:55,015 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-07 19:15:55,017 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:15:55,282 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 19:15:55,283 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:15:55,283 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:15:55,283 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [674159567] [2024-11-07 19:15:55,283 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [674159567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:15:55,283 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:15:55,283 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-07 19:15:55,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579839561] [2024-11-07 19:15:55,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:15:55,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-07 19:15:55,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:15:55,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-07 19:15:55,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-07 19:15:55,294 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 44 [2024-11-07 19:15:55,295 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 48 places, 40 transitions, 108 flow. Second operand has 9 states, 9 states have (on average 19.88888888888889) internal successors, (179), 9 states have internal predecessors, (179), 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 19:15:55,295 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:15:55,295 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 44 [2024-11-07 19:15:55,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:15:55,576 INFO L124 PetriNetUnfolderBase]: 455/868 cut-off events. [2024-11-07 19:15:55,576 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 19:15:55,577 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1723 conditions, 868 events. 455/868 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4387 event pairs, 102 based on Foata normal form. 8/835 useless extension candidates. Maximal degree in co-relation 1716. Up to 236 conditions per place. [2024-11-07 19:15:55,579 INFO L140 encePairwiseOnDemand]: 36/44 looper letters, 32 selfloop transitions, 4 changer transitions 24/80 dead transitions. [2024-11-07 19:15:55,579 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 80 transitions, 316 flow [2024-11-07 19:15:55,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 19:15:55,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2024-11-07 19:15:55,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 223 transitions. [2024-11-07 19:15:55,580 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5631313131313131 [2024-11-07 19:15:55,580 INFO L175 Difference]: Start difference. First operand has 48 places, 40 transitions, 108 flow. Second operand 9 states and 223 transitions. [2024-11-07 19:15:55,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 80 transitions, 316 flow [2024-11-07 19:15:55,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 80 transitions, 315 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 19:15:55,581 INFO L231 Difference]: Finished difference. Result has 58 places, 40 transitions, 125 flow [2024-11-07 19:15:55,581 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=107, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=125, PETRI_PLACES=58, PETRI_TRANSITIONS=40} [2024-11-07 19:15:55,582 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 9 predicate places. [2024-11-07 19:15:55,582 INFO L471 AbstractCegarLoop]: Abstraction has has 58 places, 40 transitions, 125 flow [2024-11-07 19:15:55,582 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 19.88888888888889) internal successors, (179), 9 states have internal predecessors, (179), 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 19:15:55,582 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:15:55,582 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, 1, 1, 1] [2024-11-07 19:15:55,586 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2024-11-07 19:15:55,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:15:55,783 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-07 19:15:55,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:15:55,783 INFO L85 PathProgramCache]: Analyzing trace with hash -2128109055, now seen corresponding path program 2 times [2024-11-07 19:15:55,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:15:55,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [411627942] [2024-11-07 19:15:55,784 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-07 19:15:55,784 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:15:55,784 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:15:55,785 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:15:55,786 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2024-11-07 19:15:55,845 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-07 19:15:55,845 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:15:55,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 19:15:55,849 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:15:55,873 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 19:15:55,874 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:15:55,874 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:15:55,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [411627942] [2024-11-07 19:15:55,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [411627942] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:15:55,874 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:15:55,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:15:55,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2141125728] [2024-11-07 19:15:55,874 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:15:55,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:15:55,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:15:55,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:15:55,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:15:55,883 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 44 [2024-11-07 19:15:55,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 40 transitions, 125 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 19:15:55,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:15:55,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 44 [2024-11-07 19:15:55,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:15:56,044 INFO L124 PetriNetUnfolderBase]: 694/1315 cut-off events. [2024-11-07 19:15:56,045 INFO L125 PetriNetUnfolderBase]: For 219/223 co-relation queries the response was YES. [2024-11-07 19:15:56,047 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2849 conditions, 1315 events. 694/1315 cut-off events. For 219/223 co-relation queries the response was YES. Maximal size of possible extension queue 73. Compared 7411 event pairs, 321 based on Foata normal form. 8/1255 useless extension candidates. Maximal degree in co-relation 2837. Up to 605 conditions per place. [2024-11-07 19:15:56,049 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 30 selfloop transitions, 2 changer transitions 13/63 dead transitions. [2024-11-07 19:15:56,049 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 63 transitions, 277 flow [2024-11-07 19:15:56,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:15:56,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:15:56,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 126 transitions. [2024-11-07 19:15:56,050 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5727272727272728 [2024-11-07 19:15:56,050 INFO L175 Difference]: Start difference. First operand has 58 places, 40 transitions, 125 flow. Second operand 5 states and 126 transitions. [2024-11-07 19:15:56,050 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 63 transitions, 277 flow [2024-11-07 19:15:56,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 63 transitions, 255 flow, removed 5 selfloop flow, removed 7 redundant places. [2024-11-07 19:15:56,052 INFO L231 Difference]: Finished difference. Result has 54 places, 40 transitions, 123 flow [2024-11-07 19:15:56,052 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=111, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=123, PETRI_PLACES=54, PETRI_TRANSITIONS=40} [2024-11-07 19:15:56,052 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 5 predicate places. [2024-11-07 19:15:56,052 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 40 transitions, 123 flow [2024-11-07 19:15:56,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 19:15:56,052 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:15:56,053 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, 1, 1, 1] [2024-11-07 19:15:56,057 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (8)] Ended with exit code 0 [2024-11-07 19:15:56,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:15:56,253 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-07 19:15:56,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:15:56,254 INFO L85 PathProgramCache]: Analyzing trace with hash -875381827, now seen corresponding path program 3 times [2024-11-07 19:15:56,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:15:56,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [541337588] [2024-11-07 19:15:56,254 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-07 19:15:56,254 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:15:56,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:15:56,257 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:15:56,258 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2024-11-07 19:15:56,315 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-11-07 19:15:56,315 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-07 19:15:56,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-07 19:15:56,319 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 19:15:56,346 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 19:15:56,346 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-07 19:15:56,346 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-11-07 19:15:56,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [541337588] [2024-11-07 19:15:56,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [541337588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:15:56,346 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:15:56,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 19:15:56,346 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385364254] [2024-11-07 19:15:56,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:15:56,347 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 19:15:56,347 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-11-07 19:15:56,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 19:15:56,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 19:15:56,352 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 16 out of 44 [2024-11-07 19:15:56,352 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 40 transitions, 123 flow. Second operand has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 19:15:56,352 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:15:56,352 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 16 of 44 [2024-11-07 19:15:56,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:15:56,492 INFO L124 PetriNetUnfolderBase]: 550/1057 cut-off events. [2024-11-07 19:15:56,493 INFO L125 PetriNetUnfolderBase]: For 79/79 co-relation queries the response was YES. [2024-11-07 19:15:56,494 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2187 conditions, 1057 events. 550/1057 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 76. Compared 5397 event pairs, 220 based on Foata normal form. 8/1030 useless extension candidates. Maximal degree in co-relation 2176. Up to 446 conditions per place. [2024-11-07 19:15:56,496 INFO L140 encePairwiseOnDemand]: 39/44 looper letters, 25 selfloop transitions, 2 changer transitions 16/61 dead transitions. [2024-11-07 19:15:56,496 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 61 transitions, 261 flow [2024-11-07 19:15:56,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 19:15:56,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-07 19:15:56,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 124 transitions. [2024-11-07 19:15:56,497 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5636363636363636 [2024-11-07 19:15:56,497 INFO L175 Difference]: Start difference. First operand has 54 places, 40 transitions, 123 flow. Second operand 5 states and 124 transitions. [2024-11-07 19:15:56,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 61 transitions, 261 flow [2024-11-07 19:15:56,499 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 61 transitions, 247 flow, removed 5 selfloop flow, removed 4 redundant places. [2024-11-07 19:15:56,500 INFO L231 Difference]: Finished difference. Result has 55 places, 40 transitions, 125 flow [2024-11-07 19:15:56,501 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=125, PETRI_PLACES=55, PETRI_TRANSITIONS=40} [2024-11-07 19:15:56,501 INFO L277 CegarLoopForPetriNet]: 49 programPoint places, 6 predicate places. [2024-11-07 19:15:56,502 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 40 transitions, 125 flow [2024-11-07 19:15:56,502 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 19.8) internal successors, (99), 5 states have internal predecessors, (99), 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 19:15:56,502 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:15:56,502 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, 1, 1, 1] [2024-11-07 19:15:56,509 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (9)] Ended with exit code 0 [2024-11-07 19:15:56,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:15:56,703 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK === [P0Err0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (and 4 more)] === [2024-11-07 19:15:56,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:15:56,703 INFO L85 PathProgramCache]: Analyzing trace with hash -694887483, now seen corresponding path program 4 times [2024-11-07 19:15:56,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-11-07 19:15:56,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [512602717] [2024-11-07 19:15:56,705 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-07 19:15:56,705 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:15:56,705 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat [2024-11-07 19:15:56,707 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-11-07 19:15:56,708 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2024-11-07 19:15:56,770 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-07 19:15:56,771 INFO L228 tOrderPrioritization]: Conjunction of SSA is sat [2024-11-07 19:15:56,771 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-07 19:15:56,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-07 19:15:56,865 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-11-07 19:15:56,865 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-07 19:15:56,866 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (6 of 7 remaining) [2024-11-07 19:15:56,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (5 of 7 remaining) [2024-11-07 19:15:56,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (4 of 7 remaining) [2024-11-07 19:15:56,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2024-11-07 19:15:56,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2024-11-07 19:15:56,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 7 remaining) [2024-11-07 19:15:56,869 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location P0Err0ASSERT_VIOLATIONMEMORY_LEAK (0 of 7 remaining) [2024-11-07 19:15:56,873 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (10)] Ended with exit code 0 [2024-11-07 19:15:57,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-11-07 19:15:57,070 INFO L407 BasicCegarLoop]: Path program histogram: [4, 1, 1, 1, 1, 1] [2024-11-07 19:15:57,132 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 19:15:57,132 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 19:15:57,138 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 07:15:57 BasicIcfg [2024-11-07 19:15:57,139 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 19:15:57,139 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 19:15:57,139 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 19:15:57,140 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 19:15:57,140 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:15:51" (3/4) ... [2024-11-07 19:15:57,141 INFO L145 WitnessPrinter]: No result that supports witness generation found [2024-11-07 19:15:57,142 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 19:15:57,143 INFO L158 Benchmark]: Toolchain (without parser) took 6360.53ms. Allocated memory was 83.9MB in the beginning and 192.9MB in the end (delta: 109.1MB). Free memory was 58.8MB in the beginning and 135.7MB in the end (delta: -76.9MB). Peak memory consumption was 37.2MB. Max. memory is 16.1GB. [2024-11-07 19:15:57,143 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory was 64.9MB in the beginning and 64.9MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 19:15:57,143 INFO L158 Benchmark]: CACSL2BoogieTranslator took 349.99ms. Allocated memory is still 83.9MB. Free memory was 58.8MB in the beginning and 35.6MB in the end (delta: 23.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-07 19:15:57,144 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.71ms. Allocated memory is still 83.9MB. Free memory was 35.6MB in the beginning and 33.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 19:15:57,144 INFO L158 Benchmark]: Boogie Preprocessor took 52.10ms. Allocated memory is still 83.9MB. Free memory was 33.6MB in the beginning and 30.6MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 19:15:57,144 INFO L158 Benchmark]: RCFGBuilder took 598.57ms. Allocated memory is still 83.9MB. Free memory was 30.6MB in the beginning and 35.8MB in the end (delta: -5.3MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2024-11-07 19:15:57,144 INFO L158 Benchmark]: TraceAbstraction took 5316.06ms. Allocated memory was 83.9MB in the beginning and 192.9MB in the end (delta: 109.1MB). Free memory was 35.3MB in the beginning and 135.7MB in the end (delta: -100.4MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. [2024-11-07 19:15:57,144 INFO L158 Benchmark]: Witness Printer took 2.82ms. Allocated memory is still 192.9MB. Free memory was 135.7MB in the beginning and 135.7MB in the end (delta: 16.8kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 19:15:57,145 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 83.9MB. Free memory was 64.9MB in the beginning and 64.9MB in the end (delta: 37.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 349.99ms. Allocated memory is still 83.9MB. Free memory was 58.8MB in the beginning and 35.6MB in the end (delta: 23.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.71ms. Allocated memory is still 83.9MB. Free memory was 35.6MB in the beginning and 33.6MB in the end (delta: 2.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 52.10ms. Allocated memory is still 83.9MB. Free memory was 33.6MB in the beginning and 30.6MB in the end (delta: 3.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 598.57ms. Allocated memory is still 83.9MB. Free memory was 30.6MB in the beginning and 35.8MB in the end (delta: -5.3MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. * TraceAbstraction took 5316.06ms. Allocated memory was 83.9MB in the beginning and 192.9MB in the end (delta: 109.1MB). Free memory was 35.3MB in the beginning and 135.7MB in the end (delta: -100.4MB). Peak memory consumption was 6.0MB. Max. memory is 16.1GB. * Witness Printer took 2.82ms. Allocated memory is still 192.9MB. Free memory was 135.7MB in the beginning and 135.7MB in the end (delta: 16.8kB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 17. Possible FailurePath: [L709] 0 int __unbuffered_cnt = 0; [L711] 0 int __unbuffered_p2_EAX = 0; [L712] 0 _Bool main$tmp_guard0; [L713] 0 _Bool main$tmp_guard1; [L715] 0 int x = 0; [L717] 0 int y = 0; [L719] 0 int z = 0; [L720] 0 _Bool z$flush_delayed; [L721] 0 int z$mem_tmp; [L722] 0 _Bool z$r_buff0_thd0; [L723] 0 _Bool z$r_buff0_thd1; [L724] 0 _Bool z$r_buff0_thd2; [L725] 0 _Bool z$r_buff0_thd3; [L726] 0 _Bool z$r_buff1_thd0; [L727] 0 _Bool z$r_buff1_thd1; [L728] 0 _Bool z$r_buff1_thd2; [L729] 0 _Bool z$r_buff1_thd3; [L730] 0 _Bool z$read_delayed; [L731] 0 int *z$read_delayed_var; [L732] 0 int z$w_buff0; [L733] 0 _Bool z$w_buff0_used; [L734] 0 int z$w_buff1; [L735] 0 _Bool z$w_buff1_used; [L736] 0 _Bool weak$$choice0; [L737] 0 _Bool weak$$choice2; [L831] 0 pthread_t t1489; [L832] FCALL, FORK 0 pthread_create(&t1489, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1489=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=0, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=0, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=0] [L741] 1 z$w_buff1 = z$w_buff0 [L742] 1 z$w_buff0 = 1 [L743] 1 z$w_buff1_used = z$w_buff0_used [L744] 1 z$w_buff0_used = (_Bool)1 [L745] CALL 1 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L18] COND FALSE 1 !(!expression) [L745] RET 1 __VERIFIER_assert(!(z$w_buff1_used && z$w_buff0_used)) [L746] 1 z$r_buff1_thd0 = z$r_buff0_thd0 [L747] 1 z$r_buff1_thd1 = z$r_buff0_thd1 [L748] 1 z$r_buff1_thd2 = z$r_buff0_thd2 [L749] 1 z$r_buff1_thd3 = z$r_buff0_thd3 [L750] 1 z$r_buff0_thd1 = (_Bool)1 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L833] 0 pthread_t t1490; [L834] FCALL, FORK 0 pthread_create(&t1490, ((void *)0), P1, ((void *)0)) VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, t1489=0, t1490=1, weak$$choice0=0, weak$$choice2=0, x=0, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L753] 1 x = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L770] 2 x = 2 VAL [\old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L835] 0 pthread_t t1491; [L836] FCALL, FORK 0 pthread_create(&t1491, ((void *)0), P2, ((void *)0)) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, t1489=0, t1490=1, t1491=2, weak$$choice0=0, weak$$choice2=0, x=2, y=0, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L773] 2 y = 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L776] 2 z = z$w_buff0_used && z$r_buff0_thd2 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd2 ? z$w_buff1 : z) [L777] 2 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$w_buff0_used [L778] 2 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$w_buff1_used [L779] 2 z$r_buff0_thd2 = z$w_buff0_used && z$r_buff0_thd2 ? (_Bool)0 : z$r_buff0_thd2 [L780] 2 z$r_buff1_thd2 = z$w_buff0_used && z$r_buff0_thd2 || z$w_buff1_used && z$r_buff1_thd2 ? (_Bool)0 : z$r_buff1_thd2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=1, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L790] 3 y = 2 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L793] 3 weak$$choice0 = __VERIFIER_nondet_bool() [L794] 3 weak$$choice2 = __VERIFIER_nondet_bool() [L795] 3 z$flush_delayed = weak$$choice2 [L796] 3 z$mem_tmp = z [L797] 3 z = !z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff1) [L798] 3 z$w_buff0 = weak$$choice2 ? z$w_buff0 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : z$w_buff0)) [L799] 3 z$w_buff1 = weak$$choice2 ? z$w_buff1 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1 : (z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff1 : z$w_buff1)) [L800] 3 z$w_buff0_used = weak$$choice2 ? z$w_buff0_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff0_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used)) [L801] 3 z$w_buff1_used = weak$$choice2 ? z$w_buff1_used : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$w_buff1_used : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L802] 3 z$r_buff0_thd3 = weak$$choice2 ? z$r_buff0_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff0_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3)) [L803] 3 z$r_buff1_thd3 = weak$$choice2 ? z$r_buff1_thd3 : (!z$w_buff0_used || !z$r_buff0_thd3 && !z$w_buff1_used || !z$r_buff0_thd3 && !z$r_buff1_thd3 ? z$r_buff1_thd3 : (z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : (_Bool)0)) [L804] 3 __unbuffered_p2_EAX = z [L805] 3 z = z$flush_delayed ? z$mem_tmp : z [L806] 3 z$flush_delayed = (_Bool)0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=1, z$w_buff1=0, z$w_buff1_used=0, z=0] [L756] 1 z = z$w_buff0_used && z$r_buff0_thd1 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd1 ? z$w_buff1 : z) [L757] 1 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$w_buff0_used [L758] 1 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$w_buff1_used [L759] 1 z$r_buff0_thd1 = z$w_buff0_used && z$r_buff0_thd1 ? (_Bool)0 : z$r_buff0_thd1 [L760] 1 z$r_buff1_thd1 = z$w_buff0_used && z$r_buff0_thd1 || z$w_buff1_used && z$r_buff1_thd1 ? (_Bool)0 : z$r_buff1_thd1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L809] 3 z = z$w_buff0_used && z$r_buff0_thd3 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd3 ? z$w_buff1 : z) [L810] 3 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$w_buff0_used [L811] 3 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$w_buff1_used [L812] 3 z$r_buff0_thd3 = z$w_buff0_used && z$r_buff0_thd3 ? (_Bool)0 : z$r_buff0_thd3 [L813] 3 z$r_buff1_thd3 = z$w_buff0_used && z$r_buff0_thd3 || z$w_buff1_used && z$r_buff1_thd3 ? (_Bool)0 : z$r_buff1_thd3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L763] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=1, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L783] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=2, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L816] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L838] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1489=0, t1490=1, t1491=2, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L840] CALL 0 assume_abort_if_not(main$tmp_guard0) [L3] COND FALSE 0 !(!cond) [L840] RET 0 assume_abort_if_not(main$tmp_guard0) [L842] 0 z = z$w_buff0_used && z$r_buff0_thd0 ? z$w_buff0 : (z$w_buff1_used && z$r_buff1_thd0 ? z$w_buff1 : z) [L843] 0 z$w_buff0_used = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$w_buff0_used [L844] 0 z$w_buff1_used = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$w_buff1_used [L845] 0 z$r_buff0_thd0 = z$w_buff0_used && z$r_buff0_thd0 ? (_Bool)0 : z$r_buff0_thd0 [L846] 0 z$r_buff1_thd0 = z$w_buff0_used && z$r_buff0_thd0 || z$w_buff1_used && z$r_buff1_thd0 ? (_Bool)0 : z$r_buff1_thd0 VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1489=0, t1490=1, t1491=2, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L849] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, t1489=0, t1490=1, t1491=2, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L851] CALL 0 __VERIFIER_assert(main$tmp_guard1) [L18] COND TRUE 0 !expression [L18] CALL 0 reach_error() [L17] COND FALSE 0 !(0) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] [L17] 0 __assert_fail ("0", "mix056_power.oepc_pso.oepc_rmo.oepc.c", 8, __extension__ __PRETTY_FUNCTION__) VAL [\old(arg)={0:0}, \old(arg)={0:0}, __unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, z$flush_delayed=0, z$mem_tmp=0, z$r_buff0_thd0=0, z$r_buff0_thd1=1, z$r_buff0_thd2=0, z$r_buff0_thd3=0, z$r_buff1_thd0=0, z$r_buff1_thd1=0, z$r_buff1_thd2=0, z$r_buff1_thd3=0, z$read_delayed=0, z$read_delayed_var={0:0}, z$w_buff0=1, z$w_buff0_used=0, z$w_buff1=0, z$w_buff1_used=0, z=1] - UnprovableResult [Line: 17]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 829]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 834]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 836]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 832]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 68 locations, 7 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: 5.2s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 2.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 298 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 285 mSDsluCounter, 58 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 52 mSDsCounter, 22 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 980 IncrementalHoareTripleChecker+Invalid, 1002 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 22 mSolverCounterUnsat, 6 mSDtfsCounter, 980 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 190 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred in iteration=4, InterpolantAutomatonStates: 40, 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: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 214 NumberOfCodeBlocks, 214 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 176 ConstructedInterpolants, 0 QuantifiedInterpolants, 612 SizeOfPredicates, 12 NumberOfNonLiveVariables, 854 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-11-07 19:15:57,169 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: UNKNOWN: Overapproximated counterexample