./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/goblint-regression/05-lval_ls_12-fldsense_nr.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/goblint-regression/05-lval_ls_12-fldsense_nr.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', 'f07f53b70b113c395773370086657e2cda4799340cf7206361c323fc526218bf'] 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/goblint-regression/05-lval_ls_12-fldsense_nr.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 f07f53b70b113c395773370086657e2cda4799340cf7206361c323fc526218bf --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 19:22:44,419 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 19:22:44,499 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-07 19:22:44,504 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 19:22:44,505 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 19:22:44,531 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 19:22:44,532 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 19:22:44,532 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 19:22:44,532 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 19:22:44,532 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 19:22:44,532 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 19:22:44,532 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 19:22:44,532 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 19:22:44,533 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 19:22:44,533 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 19:22:44,533 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 19:22:44,533 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 19:22:44,533 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 19:22:44,533 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 19:22:44,533 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 19:22:44,533 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 19:22:44,533 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 19:22:44,533 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 19:22:44,533 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 19:22:44,533 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 19:22:44,534 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 19:22:44,534 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 19:22:44,534 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 19:22:44,534 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 19:22:44,534 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 19:22:44,534 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 19:22:44,538 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 19:22:44,538 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 19:22:44,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:22:44,538 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 19:22:44,538 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 19:22:44,538 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 19:22:44,538 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 19:22:44,538 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 19:22:44,539 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 19:22:44,539 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 19:22:44,539 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 19:22:44,539 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 -> f07f53b70b113c395773370086657e2cda4799340cf7206361c323fc526218bf [2024-11-07 19:22:44,784 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 19:22:44,793 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 19:22:44,795 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 19:22:44,796 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 19:22:44,796 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 19:22:44,797 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/05-lval_ls_12-fldsense_nr.i [2024-11-07 19:22:46,028 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 19:22:46,333 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 19:22:46,336 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/05-lval_ls_12-fldsense_nr.i [2024-11-07 19:22:46,353 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1f553dad1/671ce038034948d9bbd707aac5063699/FLAG5926246c3 [2024-11-07 19:22:46,372 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/1f553dad1/671ce038034948d9bbd707aac5063699 [2024-11-07 19:22:46,375 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 19:22:46,377 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 19:22:46,379 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 19:22:46,379 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 19:22:46,383 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 19:22:46,384 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:22:46" (1/1) ... [2024-11-07 19:22:46,386 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2dc9df5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:46, skipping insertion in model container [2024-11-07 19:22:46,386 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 07:22:46" (1/1) ... [2024-11-07 19:22:46,423 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 19:22:46,651 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:22:46,668 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 19:22:46,717 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 19:22:46,763 INFO L204 MainTranslator]: Completed translation [2024-11-07 19:22:46,764 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:46 WrapperNode [2024-11-07 19:22:46,764 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 19:22:46,765 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 19:22:46,765 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 19:22:46,766 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 19:22:46,771 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:46" (1/1) ... [2024-11-07 19:22:46,784 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:46" (1/1) ... [2024-11-07 19:22:46,802 INFO L138 Inliner]: procedures = 162, calls = 29, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2024-11-07 19:22:46,802 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 19:22:46,803 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 19:22:46,803 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 19:22:46,803 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 19:22:46,811 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:46" (1/1) ... [2024-11-07 19:22:46,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:46" (1/1) ... [2024-11-07 19:22:46,815 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:46" (1/1) ... [2024-11-07 19:22:46,835 INFO L175 MemorySlicer]: Split 18 memory accesses to 2 slices as follows [8, 10]. 56 percent of accesses are in the largest equivalence class. The 12 initializations are split as follows [2, 10]. The 3 writes are split as follows [3, 0]. [2024-11-07 19:22:46,837 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:46" (1/1) ... [2024-11-07 19:22:46,837 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:46" (1/1) ... [2024-11-07 19:22:46,845 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:46" (1/1) ... [2024-11-07 19:22:46,848 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:46" (1/1) ... [2024-11-07 19:22:46,849 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:46" (1/1) ... [2024-11-07 19:22:46,850 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:46" (1/1) ... [2024-11-07 19:22:46,852 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 19:22:46,859 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 19:22:46,860 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 19:22:46,860 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 19:22:46,860 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:46" (1/1) ... [2024-11-07 19:22:46,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 19:22:46,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 19:22:46,893 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 19:22:46,896 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 19:22:46,917 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 19:22:46,918 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 19:22:46,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 19:22:46,918 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 19:22:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-11-07 19:22:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 19:22:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2024-11-07 19:22:46,919 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2024-11-07 19:22:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 19:22:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 19:22:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-11-07 19:22:46,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 19:22:46,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 19:22:46,921 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 19:22:47,038 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 19:22:47,040 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 19:22:47,250 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-07 19:22:47,250 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 19:22:47,386 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 19:22:47,387 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-07 19:22:47,387 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:22:47 BoogieIcfgContainer [2024-11-07 19:22:47,388 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 19:22:47,390 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 19:22:47,390 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 19:22:47,394 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 19:22:47,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 07:22:46" (1/3) ... [2024-11-07 19:22:47,395 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a7caf5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:22:47, skipping insertion in model container [2024-11-07 19:22:47,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 07:22:46" (2/3) ... [2024-11-07 19:22:47,395 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a7caf5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 07:22:47, skipping insertion in model container [2024-11-07 19:22:47,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:22:47" (3/3) ... [2024-11-07 19:22:47,397 INFO L112 eAbstractionObserver]: Analyzing ICFG 05-lval_ls_12-fldsense_nr.i [2024-11-07 19:22:47,409 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 19:22:47,409 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 13 error locations. [2024-11-07 19:22:47,409 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-07 19:22:47,450 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-11-07 19:22:47,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 37 transitions, 78 flow [2024-11-07 19:22:47,504 INFO L124 PetriNetUnfolderBase]: 0/36 cut-off events. [2024-11-07 19:22:47,505 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 19:22:47,507 INFO L83 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 36 events. 0/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 56 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 0. Up to 1 conditions per place. [2024-11-07 19:22:47,508 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 37 transitions, 78 flow [2024-11-07 19:22:47,511 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 40 places, 36 transitions, 75 flow [2024-11-07 19:22:47,521 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 19:22:47,534 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;@25fc1c31, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 19:22:47,536 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-07 19:22:47,541 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-07 19:22:47,541 INFO L124 PetriNetUnfolderBase]: 0/8 cut-off events. [2024-11-07 19:22:47,541 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 19:22:47,541 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:22:47,542 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-07 19:22:47,542 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-07 19:22:47,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:22:47,546 INFO L85 PathProgramCache]: Analyzing trace with hash 1932458963, now seen corresponding path program 1 times [2024-11-07 19:22:47,552 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:22:47,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254180211] [2024-11-07 19:22:47,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:22:47,553 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:22:47,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:22:47,834 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 19:22:47,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:22:47,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254180211] [2024-11-07 19:22:47,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254180211] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:22:47,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:22:47,838 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 19:22:47,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495753115] [2024-11-07 19:22:47,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:22:47,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:22:47,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:22:47,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:22:47,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:22:47,913 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 37 [2024-11-07 19:22:47,916 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 36 transitions, 75 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 19:22:47,916 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:22:47,917 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 37 [2024-11-07 19:22:47,918 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:22:48,012 INFO L124 PetriNetUnfolderBase]: 55/167 cut-off events. [2024-11-07 19:22:48,013 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 19:22:48,016 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300 conditions, 167 events. 55/167 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 613 event pairs, 55 based on Foata normal form. 0/164 useless extension candidates. Maximal degree in co-relation 291. Up to 128 conditions per place. [2024-11-07 19:22:48,019 INFO L140 encePairwiseOnDemand]: 30/37 looper letters, 17 selfloop transitions, 1 changer transitions 0/30 dead transitions. [2024-11-07 19:22:48,019 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 30 transitions, 99 flow [2024-11-07 19:22:48,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:22:48,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 19:22:48,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 63 transitions. [2024-11-07 19:22:48,032 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5675675675675675 [2024-11-07 19:22:48,034 INFO L175 Difference]: Start difference. First operand has 40 places, 36 transitions, 75 flow. Second operand 3 states and 63 transitions. [2024-11-07 19:22:48,035 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 30 transitions, 99 flow [2024-11-07 19:22:48,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 98 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 19:22:48,041 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 64 flow [2024-11-07 19:22:48,044 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=62, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=64, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2024-11-07 19:22:48,048 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -5 predicate places. [2024-11-07 19:22:48,049 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 64 flow [2024-11-07 19:22:48,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 19:22:48,049 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:22:48,050 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-07 19:22:48,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 19:22:48,050 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-07 19:22:48,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:22:48,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1932458964, now seen corresponding path program 1 times [2024-11-07 19:22:48,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:22:48,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537250084] [2024-11-07 19:22:48,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:22:48,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:22:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:22:48,231 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 19:22:48,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:22:48,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537250084] [2024-11-07 19:22:48,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537250084] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:22:48,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:22:48,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 19:22:48,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437445828] [2024-11-07 19:22:48,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:22:48,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:22:48,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:22:48,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:22:48,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:22:48,262 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 37 [2024-11-07 19:22:48,263 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 64 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 19:22:48,264 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:22:48,264 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 37 [2024-11-07 19:22:48,264 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:22:48,340 INFO L124 PetriNetUnfolderBase]: 55/149 cut-off events. [2024-11-07 19:22:48,340 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 19:22:48,342 INFO L83 FinitePrefix]: Finished finitePrefix Result has 283 conditions, 149 events. 55/149 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 489 event pairs, 55 based on Foata normal form. 0/146 useless extension candidates. Maximal degree in co-relation 277. Up to 128 conditions per place. [2024-11-07 19:22:48,344 INFO L140 encePairwiseOnDemand]: 30/37 looper letters, 16 selfloop transitions, 1 changer transitions 1/24 dead transitions. [2024-11-07 19:22:48,344 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 24 transitions, 88 flow [2024-11-07 19:22:48,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:22:48,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 19:22:48,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 63 transitions. [2024-11-07 19:22:48,346 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5675675675675675 [2024-11-07 19:22:48,346 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 64 flow. Second operand 3 states and 63 transitions. [2024-11-07 19:22:48,347 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 24 transitions, 88 flow [2024-11-07 19:22:48,347 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 24 transitions, 87 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 19:22:48,348 INFO L231 Difference]: Finished difference. Result has 30 places, 23 transitions, 51 flow [2024-11-07 19:22:48,348 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=51, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=51, PETRI_PLACES=30, PETRI_TRANSITIONS=23} [2024-11-07 19:22:48,349 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -10 predicate places. [2024-11-07 19:22:48,350 INFO L471 AbstractCegarLoop]: Abstraction has has 30 places, 23 transitions, 51 flow [2024-11-07 19:22:48,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 19:22:48,350 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-07 19:22:48,350 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 19:22:48,350 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 19:22:48,350 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 15 more)] === [2024-11-07 19:22:48,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 19:22:48,351 INFO L85 PathProgramCache]: Analyzing trace with hash -1322123299, now seen corresponding path program 1 times [2024-11-07 19:22:48,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 19:22:48,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351250117] [2024-11-07 19:22:48,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 19:22:48,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 19:22:48,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 19:22:48,451 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 19:22:48,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 19:22:48,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351250117] [2024-11-07 19:22:48,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351250117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 19:22:48,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 19:22:48,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-07 19:22:48,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49771035] [2024-11-07 19:22:48,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 19:22:48,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 19:22:48,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 19:22:48,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 19:22:48,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 19:22:48,471 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 37 [2024-11-07 19:22:48,472 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 23 transitions, 51 flow. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 19:22:48,472 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-07 19:22:48,472 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 37 [2024-11-07 19:22:48,472 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-07 19:22:48,536 INFO L124 PetriNetUnfolderBase]: 50/132 cut-off events. [2024-11-07 19:22:48,536 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-07 19:22:48,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 256 conditions, 132 events. 50/132 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 422 event pairs, 50 based on Foata normal form. 6/135 useless extension candidates. Maximal degree in co-relation 249. Up to 117 conditions per place. [2024-11-07 19:22:48,541 INFO L140 encePairwiseOnDemand]: 35/37 looper letters, 0 selfloop transitions, 0 changer transitions 22/22 dead transitions. [2024-11-07 19:22:48,541 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 30 places, 22 transitions, 83 flow [2024-11-07 19:22:48,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 19:22:48,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-07 19:22:48,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 72 transitions. [2024-11-07 19:22:48,542 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6486486486486487 [2024-11-07 19:22:48,542 INFO L175 Difference]: Start difference. First operand has 30 places, 23 transitions, 51 flow. Second operand 3 states and 72 transitions. [2024-11-07 19:22:48,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 30 places, 22 transitions, 83 flow [2024-11-07 19:22:48,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 22 transitions, 82 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-07 19:22:48,543 INFO L231 Difference]: Finished difference. Result has 29 places, 0 transitions, 0 flow [2024-11-07 19:22:48,543 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=37, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=22, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=29, PETRI_TRANSITIONS=0} [2024-11-07 19:22:48,544 INFO L277 CegarLoopForPetriNet]: 40 programPoint places, -11 predicate places. [2024-11-07 19:22:48,544 INFO L471 AbstractCegarLoop]: Abstraction has has 29 places, 0 transitions, 0 flow [2024-11-07 19:22:48,544 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 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 19:22:48,548 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 18 remaining) [2024-11-07 19:22:48,548 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 18 remaining) [2024-11-07 19:22:48,548 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 18 remaining) [2024-11-07 19:22:48,548 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 18 remaining) [2024-11-07 19:22:48,548 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 18 remaining) [2024-11-07 19:22:48,548 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 18 remaining) [2024-11-07 19:22:48,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 18 remaining) [2024-11-07 19:22:48,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 18 remaining) [2024-11-07 19:22:48,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (9 of 18 remaining) [2024-11-07 19:22:48,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2024-11-07 19:22:48,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 18 remaining) [2024-11-07 19:22:48,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 18 remaining) [2024-11-07 19:22:48,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 18 remaining) [2024-11-07 19:22:48,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 18 remaining) [2024-11-07 19:22:48,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 18 remaining) [2024-11-07 19:22:48,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 18 remaining) [2024-11-07 19:22:48,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 18 remaining) [2024-11-07 19:22:48,549 INFO L782 garLoopResultBuilder]: Registering result SAFE for location t_funErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 18 remaining) [2024-11-07 19:22:48,550 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 19:22:48,550 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-11-07 19:22:48,557 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-07 19:22:48,557 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-07 19:22:48,563 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 07:22:48 BasicIcfg [2024-11-07 19:22:48,563 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-07 19:22:48,565 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-07 19:22:48,565 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-07 19:22:48,565 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-07 19:22:48,566 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 07:22:47" (3/4) ... [2024-11-07 19:22:48,567 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-07 19:22:48,570 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure t_fun [2024-11-07 19:22:48,575 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 29 nodes and edges [2024-11-07 19:22:48,575 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-07 19:22:48,575 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-07 19:22:48,576 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-07 19:22:48,640 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-07 19:22:48,641 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-07 19:22:48,641 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-07 19:22:48,642 INFO L158 Benchmark]: Toolchain (without parser) took 2265.01ms. Allocated memory is still 117.4MB. Free memory was 90.6MB in the beginning and 59.8MB in the end (delta: 30.7MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. [2024-11-07 19:22:48,642 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 19:22:48,643 INFO L158 Benchmark]: CACSL2BoogieTranslator took 385.98ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 71.2MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-07 19:22:48,643 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.31ms. Allocated memory is still 117.4MB. Free memory was 71.2MB in the beginning and 69.6MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 19:22:48,644 INFO L158 Benchmark]: Boogie Preprocessor took 51.51ms. Allocated memory is still 117.4MB. Free memory was 69.6MB in the beginning and 68.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-11-07 19:22:48,644 INFO L158 Benchmark]: RCFGBuilder took 528.71ms. Allocated memory is still 117.4MB. Free memory was 68.0MB in the beginning and 88.3MB in the end (delta: -20.3MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. [2024-11-07 19:22:48,645 INFO L158 Benchmark]: TraceAbstraction took 1172.71ms. Allocated memory is still 117.4MB. Free memory was 87.8MB in the beginning and 63.8MB in the end (delta: 24.0MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. [2024-11-07 19:22:48,645 INFO L158 Benchmark]: Witness Printer took 76.06ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 59.8MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-07 19:22:48,646 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 117.4MB. Free memory is still 81.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 385.98ms. Allocated memory is still 117.4MB. Free memory was 90.4MB in the beginning and 71.2MB in the end (delta: 19.1MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.31ms. Allocated memory is still 117.4MB. Free memory was 71.2MB in the beginning and 69.6MB in the end (delta: 1.7MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 51.51ms. Allocated memory is still 117.4MB. Free memory was 69.6MB in the beginning and 68.0MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 528.71ms. Allocated memory is still 117.4MB. Free memory was 68.0MB in the beginning and 88.3MB in the end (delta: -20.3MB). Peak memory consumption was 29.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1172.71ms. Allocated memory is still 117.4MB. Free memory was 87.8MB in the beginning and 63.8MB in the end (delta: 24.0MB). Peak memory consumption was 19.1MB. Max. memory is 16.1GB. * Witness Printer took 76.06ms. Allocated memory is still 117.4MB. Free memory was 63.8MB in the beginning and 59.8MB in the end (delta: 4.0MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 687]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 51 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 109 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 64 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 10 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 98 IncrementalHoareTripleChecker+Invalid, 108 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 10 mSolverCounterUnsat, 7 mSDtfsCounter, 98 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 135 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 13 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-07 19:22:48,667 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE