./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb_p.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/ddv-machzwd/ddv_machzwd_inb_p.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', 'ee91797f6143b4fe80e7c90b0707f35813b28455783da5eca6bad66702efa7d7'] 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/ddv-machzwd/ddv_machzwd_inb_p.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 ee91797f6143b4fe80e7c90b0707f35813b28455783da5eca6bad66702efa7d7 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 16:43:54,086 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 16:43:54,166 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-07 16:43:54,171 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 16:43:54,172 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 16:43:54,191 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 16:43:54,191 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 16:43:54,191 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 16:43:54,192 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 16:43:54,192 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 16:43:54,192 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 16:43:54,192 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 16:43:54,192 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 16:43:54,192 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 16:43:54,192 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 16:43:54,192 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 16:43:54,192 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 16:43:54,193 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 16:43:54,193 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 16:43:54,193 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 16:43:54,193 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-07 16:43:54,193 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-07 16:43:54,193 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-07 16:43:54,193 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 16:43:54,193 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-07 16:43:54,193 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 16:43:54,193 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-07 16:43:54,193 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 16:43:54,193 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 16:43:54,193 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 16:43:54,193 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 16:43:54,193 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 16:43:54,194 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 16:43:54,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 16:43:54,194 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 16:43:54,194 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 16:43:54,194 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 16:43:54,194 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 16:43:54,194 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 16:43:54,194 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 16:43:54,194 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 16:43:54,194 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 16:43:54,194 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 -> ee91797f6143b4fe80e7c90b0707f35813b28455783da5eca6bad66702efa7d7 [2024-11-07 16:43:54,404 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 16:43:54,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 16:43:54,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 16:43:54,413 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 16:43:54,413 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 16:43:54,414 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb_p.i [2024-11-07 16:43:55,477 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 16:43:55,803 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 16:43:55,805 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb_p.i [2024-11-07 16:43:55,828 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8992d6116/9c12f695ef564a9b91c1f535354c0086/FLAGc50b1cb42 [2024-11-07 16:43:56,049 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/8992d6116/9c12f695ef564a9b91c1f535354c0086 [2024-11-07 16:43:56,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 16:43:56,051 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 16:43:56,052 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 16:43:56,052 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 16:43:56,055 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 16:43:56,055 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:43:56" (1/1) ... [2024-11-07 16:43:56,056 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21727f18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:43:56, skipping insertion in model container [2024-11-07 16:43:56,056 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 04:43:56" (1/1) ... [2024-11-07 16:43:56,093 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 16:43:56,631 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 16:43:56,658 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 16:43:56,677 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 16:43:56,729 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 16:43:56,758 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-07 16:43:56,759 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 16:43:56,818 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 16:43:56,933 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 16:43:57,076 INFO L204 MainTranslator]: Completed translation [2024-11-07 16:43:57,077 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:43:57 WrapperNode [2024-11-07 16:43:57,077 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 16:43:57,077 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 16:43:57,078 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 16:43:57,078 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 16:43:57,082 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:43:57" (1/1) ... [2024-11-07 16:43:57,130 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:43:57" (1/1) ... [2024-11-07 16:43:57,242 INFO L138 Inliner]: procedures = 472, calls = 2681, calls flagged for inlining = 55, calls inlined = 37, statements flattened = 3384 [2024-11-07 16:43:57,243 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 16:43:57,244 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 16:43:57,244 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 16:43:57,244 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 16:43:57,251 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:43:57" (1/1) ... [2024-11-07 16:43:57,252 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:43:57" (1/1) ... [2024-11-07 16:43:57,265 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:43:57" (1/1) ... [2024-11-07 16:43:57,340 INFO L175 MemorySlicer]: Split 2037 memory accesses to 27 slices as follows [5, 0, 3, 35, 1040, 480, 37, 59, 35, 11, 5, 5, 15, 120, 67, 3, 2, 20, 4, 2, 16, 2, 2, 18, 34, 5, 12]. 51 percent of accesses are in the largest equivalence class. The 1935 initializations are split as follows [3, 0, 3, 15, 1040, 480, 25, 59, 32, 2, 1, 4, 10, 120, 67, 0, 2, 4, 4, 0, 5, 0, 0, 18, 34, 1, 6]. The 37 writes are split as follows [0, 0, 0, 6, 0, 0, 0, 0, 0, 5, 1, 0, 2, 0, 0, 0, 0, 4, 0, 1, 8, 2, 0, 0, 0, 2, 6]. [2024-11-07 16:43:57,342 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:43:57" (1/1) ... [2024-11-07 16:43:57,342 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:43:57" (1/1) ... [2024-11-07 16:43:57,421 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:43:57" (1/1) ... [2024-11-07 16:43:57,438 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:43:57" (1/1) ... [2024-11-07 16:43:57,460 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:43:57" (1/1) ... [2024-11-07 16:43:57,471 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:43:57" (1/1) ... [2024-11-07 16:43:57,494 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 16:43:57,497 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 16:43:57,497 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 16:43:57,497 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 16:43:57,498 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:43:57" (1/1) ... [2024-11-07 16:43:57,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 16:43:57,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 16:43:57,525 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 16:43:57,555 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 16:43:57,569 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2024-11-07 16:43:57,569 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2024-11-07 16:43:57,569 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-07 16:43:57,569 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2024-11-07 16:43:57,569 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-07 16:43:57,570 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-07 16:43:57,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-07 16:43:57,570 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-07 16:43:57,570 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-07 16:43:57,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-07 16:43:57,570 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2024-11-07 16:43:57,570 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2024-11-07 16:43:57,570 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2024-11-07 16:43:57,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-07 16:43:57,570 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-07 16:43:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-07 16:43:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-07 16:43:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-07 16:43:57,571 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-07 16:43:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-07 16:43:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-07 16:43:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-07 16:43:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-07 16:43:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-07 16:43:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-07 16:43:57,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-07 16:43:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-07 16:43:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-07 16:43:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-07 16:43:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-07 16:43:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-07 16:43:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-07 16:43:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-11-07 16:43:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-11-07 16:43:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2024-11-07 16:43:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2024-11-07 16:43:57,573 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2024-11-07 16:43:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2024-11-07 16:43:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2024-11-07 16:43:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2024-11-07 16:43:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-07 16:43:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2024-11-07 16:43:57,574 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2024-11-07 16:43:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 16:43:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-07 16:43:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-07 16:43:57,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#22 [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#23 [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#24 [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#25 [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#26 [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-07 16:43:57,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2024-11-07 16:43:57,575 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2024-11-07 16:43:57,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2024-11-07 16:43:57,575 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 16:43:57,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 16:43:57,575 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2024-11-07 16:43:57,575 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 16:43:57,576 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2024-11-07 16:43:57,576 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#22 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#23 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#24 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#25 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#26 [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2024-11-07 16:43:57,576 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2024-11-07 16:43:57,576 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2024-11-07 16:43:57,576 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-07 16:43:57,576 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-07 16:43:57,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-07 16:43:57,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-07 16:43:57,579 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#22 [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#23 [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#24 [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#25 [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#26 [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-07 16:43:57,580 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2024-11-07 16:43:57,580 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-07 16:43:57,580 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-07 16:43:57,580 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2024-11-07 16:43:57,580 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2024-11-07 16:43:57,581 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2024-11-07 16:43:57,581 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2024-11-07 16:43:57,581 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2024-11-07 16:43:57,581 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2024-11-07 16:43:57,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-07 16:43:57,581 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-07 16:43:57,581 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-07 16:43:57,581 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 16:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-07 16:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-07 16:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-07 16:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-07 16:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-07 16:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-07 16:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-07 16:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-07 16:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-07 16:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-07 16:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-07 16:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-07 16:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-07 16:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-07 16:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-07 16:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-07 16:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-07 16:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-07 16:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-07 16:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-11-07 16:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2024-11-07 16:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2024-11-07 16:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2024-11-07 16:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2024-11-07 16:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2024-11-07 16:43:57,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2024-11-07 16:43:57,956 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 16:43:57,958 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 16:44:01,437 INFO L? ?]: Removed 650 outVars from TransFormulas that were not future-live. [2024-11-07 16:44:01,440 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 16:44:01,485 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 16:44:01,489 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-07 16:44:01,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:44:01 BoogieIcfgContainer [2024-11-07 16:44:01,490 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 16:44:01,492 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 16:44:01,494 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 16:44:01,498 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 16:44:01,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 04:43:56" (1/3) ... [2024-11-07 16:44:01,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e2e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:44:01, skipping insertion in model container [2024-11-07 16:44:01,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 04:43:57" (2/3) ... [2024-11-07 16:44:01,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@47e2e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 04:44:01, skipping insertion in model container [2024-11-07 16:44:01,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 04:44:01" (3/3) ... [2024-11-07 16:44:01,504 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inb_p.i [2024-11-07 16:44:01,521 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 16:44:01,524 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 205 error locations. [2024-11-07 16:44:01,605 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 16:44:01,612 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;@1418d109, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 16:44:01,613 INFO L334 AbstractCegarLoop]: Starting to check reachability of 205 error locations. [2024-11-07 16:44:01,619 INFO L276 IsEmpty]: Start isEmpty. Operand has 702 states, 392 states have (on average 1.7857142857142858) internal successors, (700), 603 states have internal predecessors, (700), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-07 16:44:01,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-07 16:44:01,624 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:44:01,624 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-07 16:44:01,624 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-07 16:44:01,628 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:44:01,628 INFO L85 PathProgramCache]: Analyzing trace with hash 460813917, now seen corresponding path program 1 times [2024-11-07 16:44:01,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:44:01,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294103786] [2024-11-07 16:44:01,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:44:01,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:44:03,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:04,256 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 16:44:04,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:44:04,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294103786] [2024-11-07 16:44:04,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294103786] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:44:04,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:44:04,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 16:44:04,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [355971591] [2024-11-07 16:44:04,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:44:04,270 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 16:44:04,270 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:44:04,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 16:44:04,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 16:44:04,290 INFO L87 Difference]: Start difference. First operand has 702 states, 392 states have (on average 1.7857142857142858) internal successors, (700), 603 states have internal predecessors, (700), 78 states have call successors, (78), 26 states have call predecessors, (78), 26 states have return successors, (78), 78 states have call predecessors, (78), 78 states have call successors, (78) Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 16:44:05,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:44:05,375 INFO L93 Difference]: Finished difference Result 1270 states and 1534 transitions. [2024-11-07 16:44:05,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 16:44:05,376 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-07 16:44:05,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:44:05,386 INFO L225 Difference]: With dead ends: 1270 [2024-11-07 16:44:05,386 INFO L226 Difference]: Without dead ends: 1266 [2024-11-07 16:44:05,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 16:44:05,389 INFO L432 NwaCegarLoop]: 771 mSDtfsCounter, 728 mSDsluCounter, 1797 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 2568 SdHoareTripleChecker+Invalid, 1125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 16:44:05,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 2568 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 16:44:05,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2024-11-07 16:44:05,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1053. [2024-11-07 16:44:05,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1053 states, 660 states have (on average 1.7606060606060605) internal successors, (1162), 882 states have internal predecessors, (1162), 138 states have call successors, (138), 50 states have call predecessors, (138), 50 states have return successors, (138), 131 states have call predecessors, (138), 138 states have call successors, (138) [2024-11-07 16:44:05,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1438 transitions. [2024-11-07 16:44:05,484 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1438 transitions. Word has length 5 [2024-11-07 16:44:05,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:44:05,484 INFO L471 AbstractCegarLoop]: Abstraction has 1053 states and 1438 transitions. [2024-11-07 16:44:05,484 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 16:44:05,484 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1438 transitions. [2024-11-07 16:44:05,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-07 16:44:05,484 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:44:05,485 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-07 16:44:05,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 16:44:05,485 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-07 16:44:05,485 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:44:05,486 INFO L85 PathProgramCache]: Analyzing trace with hash 460813918, now seen corresponding path program 1 times [2024-11-07 16:44:05,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:44:05,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204308347] [2024-11-07 16:44:05,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:44:05,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:44:07,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:07,889 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 16:44:07,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:44:07,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204308347] [2024-11-07 16:44:07,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204308347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:44:07,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:44:07,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 16:44:07,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883866109] [2024-11-07 16:44:07,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:44:07,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 16:44:07,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:44:07,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 16:44:07,891 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 16:44:07,892 INFO L87 Difference]: Start difference. First operand 1053 states and 1438 transitions. Second operand has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 16:44:08,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:44:08,648 INFO L93 Difference]: Finished difference Result 1193 states and 1541 transitions. [2024-11-07 16:44:08,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 16:44:08,649 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2024-11-07 16:44:08,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:44:08,654 INFO L225 Difference]: With dead ends: 1193 [2024-11-07 16:44:08,654 INFO L226 Difference]: Without dead ends: 1193 [2024-11-07 16:44:08,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 16:44:08,655 INFO L432 NwaCegarLoop]: 889 mSDtfsCounter, 281 mSDsluCounter, 1940 mSDsCounter, 0 mSdLazyCounter, 867 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 2829 SdHoareTripleChecker+Invalid, 868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 867 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 16:44:08,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 2829 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 16:44:08,656 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2024-11-07 16:44:08,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1134. [2024-11-07 16:44:08,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1134 states, 709 states have (on average 1.7249647390691114) internal successors, (1223), 932 states have internal predecessors, (1223), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-07 16:44:08,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1537 transitions. [2024-11-07 16:44:08,686 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1537 transitions. Word has length 5 [2024-11-07 16:44:08,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:44:08,686 INFO L471 AbstractCegarLoop]: Abstraction has 1134 states and 1537 transitions. [2024-11-07 16:44:08,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.0) internal successors, (4), 3 states have internal predecessors, (4), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 16:44:08,686 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1537 transitions. [2024-11-07 16:44:08,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-07 16:44:08,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:44:08,687 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:44:08,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 16:44:08,687 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-07 16:44:08,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:44:08,687 INFO L85 PathProgramCache]: Analyzing trace with hash -1849255734, now seen corresponding path program 1 times [2024-11-07 16:44:08,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:44:08,687 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571458605] [2024-11-07 16:44:08,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:44:08,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:44:10,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:10,403 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 16:44:10,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:10,416 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 16:44:10,417 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:44:10,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571458605] [2024-11-07 16:44:10,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571458605] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:44:10,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:44:10,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 16:44:10,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810733521] [2024-11-07 16:44:10,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:44:10,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 16:44:10,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:44:10,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 16:44:10,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 16:44:10,419 INFO L87 Difference]: Start difference. First operand 1134 states and 1537 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 16:44:11,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:44:11,373 INFO L93 Difference]: Finished difference Result 1360 states and 1649 transitions. [2024-11-07 16:44:11,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 16:44:11,373 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-07 16:44:11,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:44:11,378 INFO L225 Difference]: With dead ends: 1360 [2024-11-07 16:44:11,379 INFO L226 Difference]: Without dead ends: 1360 [2024-11-07 16:44:11,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 16:44:11,379 INFO L432 NwaCegarLoop]: 625 mSDtfsCounter, 868 mSDsluCounter, 904 mSDsCounter, 0 mSdLazyCounter, 891 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 916 SdHoareTripleChecker+Valid, 1529 SdHoareTripleChecker+Invalid, 1061 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 891 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 16:44:11,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [916 Valid, 1529 Invalid, 1061 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 891 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 16:44:11,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1360 states. [2024-11-07 16:44:11,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1360 to 1133. [2024-11-07 16:44:11,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1133 states, 709 states have (on average 1.7179125528913963) internal successors, (1218), 931 states have internal predecessors, (1218), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-07 16:44:11,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1532 transitions. [2024-11-07 16:44:11,415 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 1532 transitions. Word has length 11 [2024-11-07 16:44:11,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:44:11,415 INFO L471 AbstractCegarLoop]: Abstraction has 1133 states and 1532 transitions. [2024-11-07 16:44:11,415 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 16:44:11,415 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 1532 transitions. [2024-11-07 16:44:11,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-07 16:44:11,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:44:11,416 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:44:11,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 16:44:11,416 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-07 16:44:11,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:44:11,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1849255733, now seen corresponding path program 1 times [2024-11-07 16:44:11,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:44:11,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698915770] [2024-11-07 16:44:11,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:44:11,416 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:44:12,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:13,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 16:44:13,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:13,342 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 16:44:13,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:44:13,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698915770] [2024-11-07 16:44:13,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698915770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:44:13,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:44:13,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 16:44:13,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755476672] [2024-11-07 16:44:13,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:44:13,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 16:44:13,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:44:13,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 16:44:13,344 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 16:44:13,344 INFO L87 Difference]: Start difference. First operand 1133 states and 1532 transitions. Second operand has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 16:44:14,249 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:44:14,249 INFO L93 Difference]: Finished difference Result 1217 states and 1572 transitions. [2024-11-07 16:44:14,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 16:44:14,251 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-11-07 16:44:14,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:44:14,256 INFO L225 Difference]: With dead ends: 1217 [2024-11-07 16:44:14,256 INFO L226 Difference]: Without dead ends: 1217 [2024-11-07 16:44:14,257 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-07 16:44:14,259 INFO L432 NwaCegarLoop]: 750 mSDtfsCounter, 407 mSDsluCounter, 1130 mSDsCounter, 0 mSdLazyCounter, 845 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 439 SdHoareTripleChecker+Valid, 1880 SdHoareTripleChecker+Invalid, 952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 845 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-07 16:44:14,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [439 Valid, 1880 Invalid, 952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 845 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-07 16:44:14,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1217 states. [2024-11-07 16:44:14,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1217 to 1136. [2024-11-07 16:44:14,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1136 states, 712 states have (on average 1.7148876404494382) internal successors, (1221), 934 states have internal predecessors, (1221), 157 states have call successors, (157), 63 states have call predecessors, (157), 63 states have return successors, (157), 150 states have call predecessors, (157), 157 states have call successors, (157) [2024-11-07 16:44:14,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1535 transitions. [2024-11-07 16:44:14,291 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1535 transitions. Word has length 11 [2024-11-07 16:44:14,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:44:14,291 INFO L471 AbstractCegarLoop]: Abstraction has 1136 states and 1535 transitions. [2024-11-07 16:44:14,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.25) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 16:44:14,292 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1535 transitions. [2024-11-07 16:44:14,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-07 16:44:14,292 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:44:14,292 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:44:14,292 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 16:44:14,292 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-07 16:44:14,293 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:44:14,293 INFO L85 PathProgramCache]: Analyzing trace with hash 368369967, now seen corresponding path program 1 times [2024-11-07 16:44:14,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:44:14,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011192109] [2024-11-07 16:44:14,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:44:14,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:44:15,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:16,241 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 16:44:16,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:16,252 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:44:16,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:44:16,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011192109] [2024-11-07 16:44:16,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011192109] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 16:44:16,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461625340] [2024-11-07 16:44:16,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:44:16,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 16:44:16,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 16:44:16,254 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 16:44:16,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 16:44:18,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:18,529 INFO L255 TraceCheckSpWp]: Trace formula consists of 5480 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-07 16:44:18,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:44:18,647 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:44:18,647 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 16:44:18,728 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:44:18,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461625340] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 16:44:18,728 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 16:44:18,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 3, 4] total 12 [2024-11-07 16:44:18,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034493476] [2024-11-07 16:44:18,728 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 16:44:18,728 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-07 16:44:18,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:44:18,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-07 16:44:18,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2024-11-07 16:44:18,729 INFO L87 Difference]: Start difference. First operand 1136 states and 1535 transitions. Second operand has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-07 16:44:20,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:44:20,937 INFO L93 Difference]: Finished difference Result 1437 states and 1816 transitions. [2024-11-07 16:44:20,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 16:44:20,938 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Word has length 14 [2024-11-07 16:44:20,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:44:20,942 INFO L225 Difference]: With dead ends: 1437 [2024-11-07 16:44:20,942 INFO L226 Difference]: Without dead ends: 1437 [2024-11-07 16:44:20,943 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-11-07 16:44:20,944 INFO L432 NwaCegarLoop]: 756 mSDtfsCounter, 882 mSDsluCounter, 3734 mSDsCounter, 0 mSdLazyCounter, 3305 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 913 SdHoareTripleChecker+Valid, 4490 SdHoareTripleChecker+Invalid, 3568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 3305 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-07 16:44:20,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [913 Valid, 4490 Invalid, 3568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 3305 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-07 16:44:20,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1437 states. [2024-11-07 16:44:20,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1437 to 1289. [2024-11-07 16:44:20,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1289 states, 823 states have (on average 1.701093560145808) internal successors, (1400), 1046 states have internal predecessors, (1400), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-07 16:44:20,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1768 transitions. [2024-11-07 16:44:20,972 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 1768 transitions. Word has length 14 [2024-11-07 16:44:20,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:44:20,973 INFO L471 AbstractCegarLoop]: Abstraction has 1289 states and 1768 transitions. [2024-11-07 16:44:20,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 3 states have call successors, (3), 3 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-07 16:44:20,973 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 1768 transitions. [2024-11-07 16:44:20,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-07 16:44:20,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:44:20,974 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:44:20,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-07 16:44:21,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 16:44:21,175 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-07 16:44:21,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:44:21,175 INFO L85 PathProgramCache]: Analyzing trace with hash 662636277, now seen corresponding path program 1 times [2024-11-07 16:44:21,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:44:21,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1116242988] [2024-11-07 16:44:21,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:44:21,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:44:22,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:22,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 16:44:22,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:22,800 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-07 16:44:22,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:44:22,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1116242988] [2024-11-07 16:44:22,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1116242988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:44:22,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:44:22,801 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 16:44:22,801 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427245973] [2024-11-07 16:44:22,801 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:44:22,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 16:44:22,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:44:22,802 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 16:44:22,802 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 16:44:22,802 INFO L87 Difference]: Start difference. First operand 1289 states and 1768 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 16:44:23,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:44:23,654 INFO L93 Difference]: Finished difference Result 1521 states and 1891 transitions. [2024-11-07 16:44:23,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 16:44:23,654 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-07 16:44:23,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:44:23,658 INFO L225 Difference]: With dead ends: 1521 [2024-11-07 16:44:23,658 INFO L226 Difference]: Without dead ends: 1521 [2024-11-07 16:44:23,659 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 16:44:23,659 INFO L432 NwaCegarLoop]: 632 mSDtfsCounter, 853 mSDsluCounter, 908 mSDsCounter, 0 mSdLazyCounter, 884 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 901 SdHoareTripleChecker+Valid, 1540 SdHoareTripleChecker+Invalid, 1058 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 884 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 16:44:23,659 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [901 Valid, 1540 Invalid, 1058 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 884 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 16:44:23,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1521 states. [2024-11-07 16:44:23,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1521 to 1287. [2024-11-07 16:44:23,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1287 states, 823 states have (on average 1.6901579586877278) internal successors, (1391), 1044 states have internal predecessors, (1391), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-07 16:44:23,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1759 transitions. [2024-11-07 16:44:23,680 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1759 transitions. Word has length 25 [2024-11-07 16:44:23,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:44:23,680 INFO L471 AbstractCegarLoop]: Abstraction has 1287 states and 1759 transitions. [2024-11-07 16:44:23,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 16:44:23,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1759 transitions. [2024-11-07 16:44:23,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-07 16:44:23,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:44:23,696 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:44:23,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 16:44:23,696 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-07 16:44:23,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:44:23,699 INFO L85 PathProgramCache]: Analyzing trace with hash 662636278, now seen corresponding path program 1 times [2024-11-07 16:44:23,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:44:23,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601528872] [2024-11-07 16:44:23,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:44:23,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:44:25,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:25,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 16:44:25,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:25,428 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:44:25,428 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:44:25,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601528872] [2024-11-07 16:44:25,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601528872] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 16:44:25,428 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1141838268] [2024-11-07 16:44:25,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:44:25,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 16:44:25,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 16:44:25,430 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 16:44:25,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 16:44:27,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:27,472 INFO L255 TraceCheckSpWp]: Trace formula consists of 5540 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 16:44:27,477 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:44:27,505 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:44:27,505 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 16:44:27,558 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 16:44:27,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1141838268] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 16:44:27,558 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 16:44:27,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 14 [2024-11-07 16:44:27,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620560449] [2024-11-07 16:44:27,558 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 16:44:27,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-07 16:44:27,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:44:27,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-07 16:44:27,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2024-11-07 16:44:27,559 INFO L87 Difference]: Start difference. First operand 1287 states and 1759 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 16:44:28,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:44:28,029 INFO L93 Difference]: Finished difference Result 1329 states and 1807 transitions. [2024-11-07 16:44:28,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-07 16:44:28,029 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 25 [2024-11-07 16:44:28,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:44:28,033 INFO L225 Difference]: With dead ends: 1329 [2024-11-07 16:44:28,033 INFO L226 Difference]: Without dead ends: 1329 [2024-11-07 16:44:28,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2024-11-07 16:44:28,033 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 151 mSDsluCounter, 2575 mSDsCounter, 0 mSdLazyCounter, 708 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 3294 SdHoareTripleChecker+Invalid, 792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 708 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 16:44:28,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 3294 Invalid, 792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 708 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 16:44:28,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2024-11-07 16:44:28,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 1305. [2024-11-07 16:44:28,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1305 states, 841 states have (on average 1.6753864447086801) internal successors, (1409), 1062 states have internal predecessors, (1409), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-07 16:44:28,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1777 transitions. [2024-11-07 16:44:28,053 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1777 transitions. Word has length 25 [2024-11-07 16:44:28,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:44:28,053 INFO L471 AbstractCegarLoop]: Abstraction has 1305 states and 1777 transitions. [2024-11-07 16:44:28,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 13 states have internal predecessors, (42), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 16:44:28,053 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1777 transitions. [2024-11-07 16:44:28,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-07 16:44:28,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:44:28,054 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:44:28,076 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 16:44:28,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 16:44:28,254 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-07 16:44:28,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:44:28,255 INFO L85 PathProgramCache]: Analyzing trace with hash 2031822710, now seen corresponding path program 2 times [2024-11-07 16:44:28,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:44:28,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044911076] [2024-11-07 16:44:28,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:44:28,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:44:29,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:30,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 16:44:30,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:30,250 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-07 16:44:30,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:44:30,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044911076] [2024-11-07 16:44:30,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044911076] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:44:30,250 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:44:30,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 16:44:30,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944367436] [2024-11-07 16:44:30,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:44:30,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 16:44:30,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:44:30,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 16:44:30,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 16:44:30,252 INFO L87 Difference]: Start difference. First operand 1305 states and 1777 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 16:44:31,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:44:31,006 INFO L93 Difference]: Finished difference Result 1385 states and 1819 transitions. [2024-11-07 16:44:31,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 16:44:31,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 43 [2024-11-07 16:44:31,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:44:31,010 INFO L225 Difference]: With dead ends: 1385 [2024-11-07 16:44:31,010 INFO L226 Difference]: Without dead ends: 1385 [2024-11-07 16:44:31,010 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-07 16:44:31,011 INFO L432 NwaCegarLoop]: 746 mSDtfsCounter, 377 mSDsluCounter, 1114 mSDsCounter, 0 mSdLazyCounter, 836 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 409 SdHoareTripleChecker+Valid, 1860 SdHoareTripleChecker+Invalid, 942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 836 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 16:44:31,011 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [409 Valid, 1860 Invalid, 942 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 836 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 16:44:31,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1385 states. [2024-11-07 16:44:31,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1385 to 1303. [2024-11-07 16:44:31,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1303 states, 841 states have (on average 1.6730083234244946) internal successors, (1407), 1060 states have internal predecessors, (1407), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-07 16:44:31,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1775 transitions. [2024-11-07 16:44:31,029 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1775 transitions. Word has length 43 [2024-11-07 16:44:31,030 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:44:31,030 INFO L471 AbstractCegarLoop]: Abstraction has 1303 states and 1775 transitions. [2024-11-07 16:44:31,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-11-07 16:44:31,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1775 transitions. [2024-11-07 16:44:31,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-07 16:44:31,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:44:31,032 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:44:31,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 16:44:31,033 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-07 16:44:31,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:44:31,033 INFO L85 PathProgramCache]: Analyzing trace with hash -255387847, now seen corresponding path program 1 times [2024-11-07 16:44:31,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:44:31,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028275626] [2024-11-07 16:44:31,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:44:31,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:44:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:32,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 16:44:32,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:32,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 16:44:32,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:32,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 16:44:32,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:32,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 16:44:32,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:32,827 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-07 16:44:32,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:44:32,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028275626] [2024-11-07 16:44:32,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1028275626] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:44:32,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:44:32,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 16:44:32,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543881462] [2024-11-07 16:44:32,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:44:32,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 16:44:32,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:44:32,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 16:44:32,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 16:44:32,831 INFO L87 Difference]: Start difference. First operand 1303 states and 1775 transitions. Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-07 16:44:33,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:44:33,187 INFO L93 Difference]: Finished difference Result 1326 states and 1802 transitions. [2024-11-07 16:44:33,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 16:44:33,189 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 67 [2024-11-07 16:44:33,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:44:33,192 INFO L225 Difference]: With dead ends: 1326 [2024-11-07 16:44:33,192 INFO L226 Difference]: Without dead ends: 1326 [2024-11-07 16:44:33,193 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 16:44:33,193 INFO L432 NwaCegarLoop]: 716 mSDtfsCounter, 883 mSDsluCounter, 558 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 1274 SdHoareTripleChecker+Invalid, 315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 16:44:33,194 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 1274 Invalid, 315 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 16:44:33,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1326 states. [2024-11-07 16:44:33,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1326 to 1302. [2024-11-07 16:44:33,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1302 states, 840 states have (on average 1.6714285714285715) internal successors, (1404), 1059 states have internal predecessors, (1404), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-07 16:44:33,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 1772 transitions. [2024-11-07 16:44:33,212 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 1772 transitions. Word has length 67 [2024-11-07 16:44:33,212 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:44:33,212 INFO L471 AbstractCegarLoop]: Abstraction has 1302 states and 1772 transitions. [2024-11-07 16:44:33,212 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-07 16:44:33,212 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 1772 transitions. [2024-11-07 16:44:33,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-07 16:44:33,214 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:44:33,214 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:44:33,214 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 16:44:33,214 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-07 16:44:33,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:44:33,214 INFO L85 PathProgramCache]: Analyzing trace with hash -624077580, now seen corresponding path program 1 times [2024-11-07 16:44:33,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:44:33,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375022830] [2024-11-07 16:44:33,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:44:33,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:44:34,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:34,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 16:44:34,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:34,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 16:44:34,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:34,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 16:44:34,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:34,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 16:44:34,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:34,970 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-07 16:44:34,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:44:34,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375022830] [2024-11-07 16:44:34,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375022830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:44:34,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:44:34,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 16:44:34,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474226948] [2024-11-07 16:44:34,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:44:34,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 16:44:34,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:44:34,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 16:44:34,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 16:44:34,972 INFO L87 Difference]: Start difference. First operand 1302 states and 1772 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-07 16:44:35,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:44:35,552 INFO L93 Difference]: Finished difference Result 1325 states and 1801 transitions. [2024-11-07 16:44:35,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 16:44:35,553 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) Word has length 69 [2024-11-07 16:44:35,553 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:44:35,556 INFO L225 Difference]: With dead ends: 1325 [2024-11-07 16:44:35,557 INFO L226 Difference]: Without dead ends: 1325 [2024-11-07 16:44:35,557 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 16:44:35,557 INFO L432 NwaCegarLoop]: 720 mSDtfsCounter, 139 mSDsluCounter, 1049 mSDsCounter, 0 mSdLazyCounter, 520 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 154 SdHoareTripleChecker+Valid, 1769 SdHoareTripleChecker+Invalid, 594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 520 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 16:44:35,557 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [154 Valid, 1769 Invalid, 594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 520 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 16:44:35,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1325 states. [2024-11-07 16:44:35,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1325 to 1301. [2024-11-07 16:44:35,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1301 states, 840 states have (on average 1.6702380952380953) internal successors, (1403), 1058 states have internal predecessors, (1403), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-07 16:44:35,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1771 transitions. [2024-11-07 16:44:35,575 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1771 transitions. Word has length 69 [2024-11-07 16:44:35,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:44:35,575 INFO L471 AbstractCegarLoop]: Abstraction has 1301 states and 1771 transitions. [2024-11-07 16:44:35,575 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-07 16:44:35,575 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1771 transitions. [2024-11-07 16:44:35,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-07 16:44:35,575 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:44:35,576 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:44:35,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 16:44:35,576 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-07 16:44:35,576 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:44:35,576 INFO L85 PathProgramCache]: Analyzing trace with hash -624077579, now seen corresponding path program 1 times [2024-11-07 16:44:35,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:44:35,576 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110999498] [2024-11-07 16:44:35,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:44:35,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:44:37,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:37,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 16:44:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:37,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 16:44:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:37,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 16:44:37,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:37,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 16:44:37,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:37,558 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-07 16:44:37,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:44:37,558 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110999498] [2024-11-07 16:44:37,558 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110999498] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:44:37,558 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:44:37,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 16:44:37,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771032505] [2024-11-07 16:44:37,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:44:37,559 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 16:44:37,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:44:37,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 16:44:37,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 16:44:37,559 INFO L87 Difference]: Start difference. First operand 1301 states and 1771 transitions. Second operand has 5 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-07 16:44:38,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:44:38,131 INFO L93 Difference]: Finished difference Result 1324 states and 1800 transitions. [2024-11-07 16:44:38,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 16:44:38,131 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 69 [2024-11-07 16:44:38,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:44:38,135 INFO L225 Difference]: With dead ends: 1324 [2024-11-07 16:44:38,135 INFO L226 Difference]: Without dead ends: 1324 [2024-11-07 16:44:38,135 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-07 16:44:38,135 INFO L432 NwaCegarLoop]: 713 mSDtfsCounter, 878 mSDsluCounter, 1046 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 920 SdHoareTripleChecker+Valid, 1759 SdHoareTripleChecker+Invalid, 660 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 16:44:38,135 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [920 Valid, 1759 Invalid, 660 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 16:44:38,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1324 states. [2024-11-07 16:44:38,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1324 to 1300. [2024-11-07 16:44:38,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1300 states, 840 states have (on average 1.6690476190476191) internal successors, (1402), 1057 states have internal predecessors, (1402), 184 states have call successors, (184), 79 states have call predecessors, (184), 79 states have return successors, (184), 176 states have call predecessors, (184), 184 states have call successors, (184) [2024-11-07 16:44:38,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 1770 transitions. [2024-11-07 16:44:38,152 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 1770 transitions. Word has length 69 [2024-11-07 16:44:38,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:44:38,152 INFO L471 AbstractCegarLoop]: Abstraction has 1300 states and 1770 transitions. [2024-11-07 16:44:38,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-07 16:44:38,152 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 1770 transitions. [2024-11-07 16:44:38,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-07 16:44:38,152 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:44:38,153 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:44:38,153 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 16:44:38,153 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr164ASSERT_VIOLATIONMEMORY_LEAK === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-07 16:44:38,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:44:38,153 INFO L85 PathProgramCache]: Analyzing trace with hash 1556221740, now seen corresponding path program 1 times [2024-11-07 16:44:38,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:44:38,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095970836] [2024-11-07 16:44:38,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:44:38,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:44:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:39,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 16:44:39,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:39,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 16:44:39,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:39,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 16:44:39,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:39,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 16:44:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:39,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-07 16:44:39,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:39,793 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-07 16:44:39,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:44:39,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095970836] [2024-11-07 16:44:39,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095970836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:44:39,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:44:39,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 16:44:39,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355805888] [2024-11-07 16:44:39,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:44:39,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 16:44:39,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:44:39,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 16:44:39,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 16:44:39,795 INFO L87 Difference]: Start difference. First operand 1300 states and 1770 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 16:44:40,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:44:40,384 INFO L93 Difference]: Finished difference Result 1365 states and 1809 transitions. [2024-11-07 16:44:40,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 16:44:40,385 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 74 [2024-11-07 16:44:40,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:44:40,389 INFO L225 Difference]: With dead ends: 1365 [2024-11-07 16:44:40,389 INFO L226 Difference]: Without dead ends: 1352 [2024-11-07 16:44:40,389 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 16:44:40,389 INFO L432 NwaCegarLoop]: 705 mSDtfsCounter, 233 mSDsluCounter, 1001 mSDsCounter, 0 mSdLazyCounter, 602 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 1706 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 602 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 16:44:40,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 1706 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 602 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 16:44:40,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1352 states. [2024-11-07 16:44:40,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1352 to 1295. [2024-11-07 16:44:40,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1295 states, 837 states have (on average 1.6702508960573477) internal successors, (1398), 1054 states have internal predecessors, (1398), 183 states have call successors, (183), 79 states have call predecessors, (183), 78 states have return successors, (181), 174 states have call predecessors, (181), 181 states have call successors, (181) [2024-11-07 16:44:40,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1762 transitions. [2024-11-07 16:44:40,408 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1762 transitions. Word has length 74 [2024-11-07 16:44:40,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:44:40,409 INFO L471 AbstractCegarLoop]: Abstraction has 1295 states and 1762 transitions. [2024-11-07 16:44:40,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 16:44:40,409 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1762 transitions. [2024-11-07 16:44:40,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-07 16:44:40,410 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:44:40,410 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:44:40,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 16:44:40,410 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-07 16:44:40,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:44:40,410 INFO L85 PathProgramCache]: Analyzing trace with hash -1378484107, now seen corresponding path program 1 times [2024-11-07 16:44:40,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:44:40,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430498739] [2024-11-07 16:44:40,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:44:40,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:44:41,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:42,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 16:44:42,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:42,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 16:44:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:42,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 16:44:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:42,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 16:44:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:42,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-07 16:44:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:42,586 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-07 16:44:42,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:44:42,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430498739] [2024-11-07 16:44:42,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430498739] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 16:44:42,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626757262] [2024-11-07 16:44:42,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:44:42,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 16:44:42,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 16:44:42,589 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 16:44:42,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 16:44:44,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:44,850 INFO L255 TraceCheckSpWp]: Trace formula consists of 5831 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-07 16:44:44,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:44:45,083 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-07 16:44:45,084 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-07 16:44:45,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-07 16:44:45,133 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-07 16:44:45,134 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 16:44:45,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626757262] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 16:44:45,171 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 16:44:45,171 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 9 [2024-11-07 16:44:45,171 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383779406] [2024-11-07 16:44:45,171 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 16:44:45,171 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 16:44:45,171 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:44:45,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 16:44:45,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-07 16:44:45,172 INFO L87 Difference]: Start difference. First operand 1295 states and 1762 transitions. Second operand has 10 states, 9 states have (on average 6.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-07 16:44:47,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:44:47,064 INFO L93 Difference]: Finished difference Result 1890 states and 2482 transitions. [2024-11-07 16:44:47,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-07 16:44:47,065 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 78 [2024-11-07 16:44:47,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:44:47,070 INFO L225 Difference]: With dead ends: 1890 [2024-11-07 16:44:47,070 INFO L226 Difference]: Without dead ends: 1890 [2024-11-07 16:44:47,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2024-11-07 16:44:47,071 INFO L432 NwaCegarLoop]: 589 mSDtfsCounter, 942 mSDsluCounter, 3436 mSDsCounter, 0 mSdLazyCounter, 3522 mSolverCounterSat, 175 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 996 SdHoareTripleChecker+Valid, 4025 SdHoareTripleChecker+Invalid, 3697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 175 IncrementalHoareTripleChecker+Valid, 3522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-07 16:44:47,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [996 Valid, 4025 Invalid, 3697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [175 Valid, 3522 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-07 16:44:47,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1890 states. [2024-11-07 16:44:47,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1890 to 1634. [2024-11-07 16:44:47,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1634 states, 1097 states have (on average 1.6937101185050136) internal successors, (1858), 1325 states have internal predecessors, (1858), 241 states have call successors, (241), 101 states have call predecessors, (241), 100 states have return successors, (239), 225 states have call predecessors, (239), 239 states have call successors, (239) [2024-11-07 16:44:47,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2338 transitions. [2024-11-07 16:44:47,098 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2338 transitions. Word has length 78 [2024-11-07 16:44:47,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:44:47,098 INFO L471 AbstractCegarLoop]: Abstraction has 1634 states and 2338 transitions. [2024-11-07 16:44:47,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 6.0) internal successors, (54), 7 states have internal predecessors, (54), 4 states have call successors, (12), 5 states have call predecessors, (12), 2 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2024-11-07 16:44:47,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2338 transitions. [2024-11-07 16:44:47,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-07 16:44:47,099 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:44:47,099 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:44:47,125 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-07 16:44:47,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 16:44:47,300 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-07 16:44:47,300 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:44:47,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1378484106, now seen corresponding path program 1 times [2024-11-07 16:44:47,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:44:47,300 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68249138] [2024-11-07 16:44:47,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:44:47,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:44:48,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:49,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 16:44:49,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:49,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 16:44:49,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:49,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 16:44:49,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:49,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 16:44:49,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:49,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-07 16:44:49,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:49,642 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-07 16:44:49,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:44:49,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68249138] [2024-11-07 16:44:49,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68249138] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 16:44:49,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1091881206] [2024-11-07 16:44:49,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:44:49,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 16:44:49,642 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 16:44:49,644 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 16:44:49,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 16:44:51,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:51,935 INFO L255 TraceCheckSpWp]: Trace formula consists of 5831 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-07 16:44:51,942 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:44:52,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-07 16:44:52,303 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-07 16:44:52,362 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-07 16:44:52,363 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 16:44:52,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1091881206] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 16:44:52,537 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 16:44:52,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 11 [2024-11-07 16:44:52,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604681310] [2024-11-07 16:44:52,538 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 16:44:52,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 16:44:52,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:44:52,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 16:44:52,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-11-07 16:44:52,538 INFO L87 Difference]: Start difference. First operand 1634 states and 2338 transitions. Second operand has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 9 states have internal predecessors, (78), 6 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-07 16:44:55,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:44:55,015 INFO L93 Difference]: Finished difference Result 2102 states and 2721 transitions. [2024-11-07 16:44:55,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 16:44:55,016 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 9 states have internal predecessors, (78), 6 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) Word has length 78 [2024-11-07 16:44:55,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:44:55,021 INFO L225 Difference]: With dead ends: 2102 [2024-11-07 16:44:55,021 INFO L226 Difference]: Without dead ends: 2102 [2024-11-07 16:44:55,022 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2024-11-07 16:44:55,022 INFO L432 NwaCegarLoop]: 489 mSDtfsCounter, 2438 mSDsluCounter, 3152 mSDsCounter, 0 mSdLazyCounter, 4656 mSolverCounterSat, 524 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2507 SdHoareTripleChecker+Valid, 3641 SdHoareTripleChecker+Invalid, 5180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 524 IncrementalHoareTripleChecker+Valid, 4656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-07 16:44:55,022 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2507 Valid, 3641 Invalid, 5180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [524 Valid, 4656 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-07 16:44:55,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2102 states. [2024-11-07 16:44:55,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2102 to 1819. [2024-11-07 16:44:55,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1819 states, 1240 states have (on average 1.7032258064516128) internal successors, (2112), 1464 states have internal predecessors, (2112), 268 states have call successors, (268), 116 states have call predecessors, (268), 115 states have return successors, (266), 257 states have call predecessors, (266), 266 states have call successors, (266) [2024-11-07 16:44:55,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 2646 transitions. [2024-11-07 16:44:55,047 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 2646 transitions. Word has length 78 [2024-11-07 16:44:55,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:44:55,047 INFO L471 AbstractCegarLoop]: Abstraction has 1819 states and 2646 transitions. [2024-11-07 16:44:55,047 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.090909090909091) internal successors, (78), 9 states have internal predecessors, (78), 6 states have call successors, (12), 6 states have call predecessors, (12), 3 states have return successors, (10), 5 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-07 16:44:55,048 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 2646 transitions. [2024-11-07 16:44:55,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-07 16:44:55,048 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:44:55,048 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:44:55,075 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-07 16:44:55,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-07 16:44:55,249 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr114REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-07 16:44:55,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:44:55,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1597499240, now seen corresponding path program 1 times [2024-11-07 16:44:55,249 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:44:55,249 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764326316] [2024-11-07 16:44:55,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:44:55,249 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:44:56,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:56,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 16:44:56,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:56,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 16:44:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:56,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 16:44:56,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:56,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 16:44:56,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:56,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-07 16:44:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:56,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-07 16:44:56,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:56,922 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-07 16:44:56,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:44:56,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764326316] [2024-11-07 16:44:56,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764326316] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:44:56,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:44:56,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 16:44:56,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048698672] [2024-11-07 16:44:56,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:44:56,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 16:44:56,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:44:56,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 16:44:56,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 16:44:56,924 INFO L87 Difference]: Start difference. First operand 1819 states and 2646 transitions. Second operand has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-07 16:44:57,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:44:57,712 INFO L93 Difference]: Finished difference Result 2048 states and 2778 transitions. [2024-11-07 16:44:57,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 16:44:57,712 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 81 [2024-11-07 16:44:57,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:44:57,717 INFO L225 Difference]: With dead ends: 2048 [2024-11-07 16:44:57,717 INFO L226 Difference]: Without dead ends: 2048 [2024-11-07 16:44:57,717 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 16:44:57,718 INFO L432 NwaCegarLoop]: 1070 mSDtfsCounter, 752 mSDsluCounter, 1278 mSDsCounter, 0 mSdLazyCounter, 913 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 2348 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 913 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 16:44:57,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 2348 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 913 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 16:44:57,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2048 states. [2024-11-07 16:44:57,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2048 to 1819. [2024-11-07 16:44:57,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1819 states, 1240 states have (on average 1.7008064516129033) internal successors, (2109), 1464 states have internal predecessors, (2109), 268 states have call successors, (268), 116 states have call predecessors, (268), 115 states have return successors, (266), 257 states have call predecessors, (266), 266 states have call successors, (266) [2024-11-07 16:44:57,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 2643 transitions. [2024-11-07 16:44:57,740 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 2643 transitions. Word has length 81 [2024-11-07 16:44:57,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:44:57,741 INFO L471 AbstractCegarLoop]: Abstraction has 1819 states and 2643 transitions. [2024-11-07 16:44:57,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-07 16:44:57,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 2643 transitions. [2024-11-07 16:44:57,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-07 16:44:57,745 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:44:57,746 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:44:57,746 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 16:44:57,746 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr115REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-07 16:44:57,746 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:44:57,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1597499241, now seen corresponding path program 1 times [2024-11-07 16:44:57,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:44:57,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944009927] [2024-11-07 16:44:57,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:44:57,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:44:59,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:59,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 16:44:59,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:59,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 16:44:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:59,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 16:44:59,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:59,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 16:44:59,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:59,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-07 16:44:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:59,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-07 16:44:59,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:44:59,461 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-07 16:44:59,461 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:44:59,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944009927] [2024-11-07 16:44:59,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944009927] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:44:59,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:44:59,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 16:44:59,462 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496690071] [2024-11-07 16:44:59,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:44:59,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 16:44:59,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:44:59,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 16:44:59,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 16:44:59,462 INFO L87 Difference]: Start difference. First operand 1819 states and 2643 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-07 16:44:59,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:44:59,957 INFO L93 Difference]: Finished difference Result 1446 states and 2035 transitions. [2024-11-07 16:44:59,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 16:44:59,958 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 81 [2024-11-07 16:44:59,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:44:59,961 INFO L225 Difference]: With dead ends: 1446 [2024-11-07 16:44:59,961 INFO L226 Difference]: Without dead ends: 1441 [2024-11-07 16:44:59,961 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 16:44:59,962 INFO L432 NwaCegarLoop]: 721 mSDtfsCounter, 138 mSDsluCounter, 2585 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 3306 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-07 16:44:59,962 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 3306 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-07 16:44:59,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1441 states. [2024-11-07 16:44:59,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1441 to 1415. [2024-11-07 16:44:59,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1415 states, 942 states have (on average 1.7101910828025477) internal successors, (1611), 1153 states have internal predecessors, (1611), 192 states have call successors, (192), 85 states have call predecessors, (192), 85 states have return successors, (192), 189 states have call predecessors, (192), 192 states have call successors, (192) [2024-11-07 16:44:59,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 1995 transitions. [2024-11-07 16:44:59,977 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 1995 transitions. Word has length 81 [2024-11-07 16:44:59,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:44:59,977 INFO L471 AbstractCegarLoop]: Abstraction has 1415 states and 1995 transitions. [2024-11-07 16:44:59,977 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-07 16:44:59,977 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 1995 transitions. [2024-11-07 16:44:59,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-07 16:44:59,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:44:59,978 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:44:59,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 16:44:59,978 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-07 16:44:59,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:44:59,978 INFO L85 PathProgramCache]: Analyzing trace with hash 2000403802, now seen corresponding path program 1 times [2024-11-07 16:44:59,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:44:59,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1826748212] [2024-11-07 16:44:59,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:44:59,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:45:01,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:02,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 16:45:02,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:02,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 16:45:02,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:02,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 16:45:02,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:02,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 16:45:02,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:02,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-07 16:45:02,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:02,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-07 16:45:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:02,396 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-07 16:45:02,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:45:02,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1826748212] [2024-11-07 16:45:02,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1826748212] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 16:45:02,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [145036643] [2024-11-07 16:45:02,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:45:02,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 16:45:02,397 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 16:45:02,399 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 16:45:02,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-07 16:45:04,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:04,741 INFO L255 TraceCheckSpWp]: Trace formula consists of 5879 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-07 16:45:04,748 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:45:04,890 INFO L349 Elim1Store]: treesize reduction 20, result has 33.3 percent of original size [2024-11-07 16:45:04,890 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 19 treesize of output 16 [2024-11-07 16:45:04,926 INFO L349 Elim1Store]: treesize reduction 17, result has 22.7 percent of original size [2024-11-07 16:45:04,926 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 13 [2024-11-07 16:45:04,951 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-07 16:45:04,951 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 16:45:04,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [145036643] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 16:45:04,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 16:45:04,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4] total 6 [2024-11-07 16:45:04,995 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [679201063] [2024-11-07 16:45:04,995 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 16:45:04,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 16:45:04,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:45:04,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 16:45:04,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-11-07 16:45:04,995 INFO L87 Difference]: Start difference. First operand 1415 states and 1995 transitions. Second operand has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-07 16:45:06,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:45:06,367 INFO L93 Difference]: Finished difference Result 1617 states and 2042 transitions. [2024-11-07 16:45:06,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-07 16:45:06,367 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 84 [2024-11-07 16:45:06,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:45:06,371 INFO L225 Difference]: With dead ends: 1617 [2024-11-07 16:45:06,371 INFO L226 Difference]: Without dead ends: 1617 [2024-11-07 16:45:06,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 103 SyntacticMatches, 2 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2024-11-07 16:45:06,371 INFO L432 NwaCegarLoop]: 585 mSDtfsCounter, 932 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 2247 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 2674 SdHoareTripleChecker+Invalid, 2417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 2247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-07 16:45:06,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 2674 Invalid, 2417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 2247 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-07 16:45:06,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1617 states. [2024-11-07 16:45:06,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1617 to 1414. [2024-11-07 16:45:06,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1414 states, 942 states have (on average 1.7091295116772824) internal successors, (1610), 1152 states have internal predecessors, (1610), 192 states have call successors, (192), 85 states have call predecessors, (192), 85 states have return successors, (192), 189 states have call predecessors, (192), 192 states have call successors, (192) [2024-11-07 16:45:06,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 1994 transitions. [2024-11-07 16:45:06,392 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 1994 transitions. Word has length 84 [2024-11-07 16:45:06,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:45:06,393 INFO L471 AbstractCegarLoop]: Abstraction has 1414 states and 1994 transitions. [2024-11-07 16:45:06,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-11-07 16:45:06,393 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 1994 transitions. [2024-11-07 16:45:06,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-07 16:45:06,394 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:45:06,394 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:45:06,420 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-07 16:45:06,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-07 16:45:06,595 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-07 16:45:06,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:45:06,595 INFO L85 PathProgramCache]: Analyzing trace with hash 2000403803, now seen corresponding path program 1 times [2024-11-07 16:45:06,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:45:06,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [897326287] [2024-11-07 16:45:06,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:45:06,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:45:08,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:09,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 16:45:09,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:09,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 16:45:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:09,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 16:45:09,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:09,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 16:45:09,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:09,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-07 16:45:09,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:09,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-07 16:45:09,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:09,333 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-07 16:45:09,333 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:45:09,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [897326287] [2024-11-07 16:45:09,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [897326287] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 16:45:09,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124955526] [2024-11-07 16:45:09,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:45:09,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 16:45:09,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 16:45:09,336 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 16:45:09,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-07 16:45:11,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:11,699 INFO L255 TraceCheckSpWp]: Trace formula consists of 5879 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-07 16:45:11,703 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 16:45:12,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-07 16:45:12,020 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 9 [2024-11-07 16:45:12,100 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-07 16:45:12,100 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 16:45:12,228 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124955526] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 16:45:12,228 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-07 16:45:12,228 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4] total 11 [2024-11-07 16:45:12,228 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312492381] [2024-11-07 16:45:12,228 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-07 16:45:12,229 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-07 16:45:12,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:45:12,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-07 16:45:12,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=192, Unknown=0, NotChecked=0, Total=240 [2024-11-07 16:45:12,229 INFO L87 Difference]: Start difference. First operand 1414 states and 1994 transitions. Second operand has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 9 states have internal predecessors, (82), 6 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-07 16:45:14,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:45:14,526 INFO L93 Difference]: Finished difference Result 1684 states and 2054 transitions. [2024-11-07 16:45:14,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-07 16:45:14,527 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 9 states have internal predecessors, (82), 6 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) Word has length 84 [2024-11-07 16:45:14,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:45:14,535 INFO L225 Difference]: With dead ends: 1684 [2024-11-07 16:45:14,535 INFO L226 Difference]: Without dead ends: 1684 [2024-11-07 16:45:14,535 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 132 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2024-11-07 16:45:14,535 INFO L432 NwaCegarLoop]: 484 mSDtfsCounter, 3173 mSDsluCounter, 2488 mSDsCounter, 0 mSdLazyCounter, 4102 mSolverCounterSat, 697 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3241 SdHoareTripleChecker+Valid, 2972 SdHoareTripleChecker+Invalid, 4799 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 697 IncrementalHoareTripleChecker+Valid, 4102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-07 16:45:14,535 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3241 Valid, 2972 Invalid, 4799 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [697 Valid, 4102 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-07 16:45:14,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1684 states. [2024-11-07 16:45:14,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1684 to 1412. [2024-11-07 16:45:14,551 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1412 states, 942 states have (on average 1.7070063694267517) internal successors, (1608), 1150 states have internal predecessors, (1608), 192 states have call successors, (192), 85 states have call predecessors, (192), 85 states have return successors, (192), 189 states have call predecessors, (192), 192 states have call successors, (192) [2024-11-07 16:45:14,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 1992 transitions. [2024-11-07 16:45:14,553 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 1992 transitions. Word has length 84 [2024-11-07 16:45:14,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:45:14,553 INFO L471 AbstractCegarLoop]: Abstraction has 1412 states and 1992 transitions. [2024-11-07 16:45:14,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 9 states have internal predecessors, (82), 6 states have call successors, (14), 6 states have call predecessors, (14), 3 states have return successors, (12), 6 states have call predecessors, (12), 6 states have call successors, (12) [2024-11-07 16:45:14,553 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 1992 transitions. [2024-11-07 16:45:14,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-07 16:45:14,554 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:45:14,554 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:45:14,580 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-07 16:45:14,754 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-07 16:45:14,754 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-07 16:45:14,755 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:45:14,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1179483396, now seen corresponding path program 1 times [2024-11-07 16:45:14,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:45:14,755 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625750353] [2024-11-07 16:45:14,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:45:14,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:45:16,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:16,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 16:45:16,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:16,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 16:45:16,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:16,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 16:45:16,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:16,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 16:45:16,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:16,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-07 16:45:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:16,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-07 16:45:16,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:16,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 16:45:16,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:16,689 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-07 16:45:16,689 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:45:16,689 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625750353] [2024-11-07 16:45:16,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625750353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:45:16,690 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:45:16,690 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 16:45:16,690 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718929055] [2024-11-07 16:45:16,690 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:45:16,690 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 16:45:16,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:45:16,690 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 16:45:16,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-07 16:45:16,691 INFO L87 Difference]: Start difference. First operand 1412 states and 1992 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-07 16:45:17,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:45:17,708 INFO L93 Difference]: Finished difference Result 1613 states and 2038 transitions. [2024-11-07 16:45:17,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 16:45:17,709 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) Word has length 90 [2024-11-07 16:45:17,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:45:17,714 INFO L225 Difference]: With dead ends: 1613 [2024-11-07 16:45:17,714 INFO L226 Difference]: Without dead ends: 1613 [2024-11-07 16:45:17,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 16:45:17,715 INFO L432 NwaCegarLoop]: 586 mSDtfsCounter, 1582 mSDsluCounter, 1211 mSDsCounter, 0 mSdLazyCounter, 1269 mSolverCounterSat, 332 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1634 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 1601 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 332 IncrementalHoareTripleChecker+Valid, 1269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-07 16:45:17,715 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1634 Valid, 1797 Invalid, 1601 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [332 Valid, 1269 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-07 16:45:17,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1613 states. [2024-11-07 16:45:17,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1613 to 1410. [2024-11-07 16:45:17,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1410 states, 942 states have (on average 1.7048832271762209) internal successors, (1606), 1148 states have internal predecessors, (1606), 192 states have call successors, (192), 85 states have call predecessors, (192), 85 states have return successors, (192), 189 states have call predecessors, (192), 192 states have call successors, (192) [2024-11-07 16:45:17,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 1990 transitions. [2024-11-07 16:45:17,727 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 1990 transitions. Word has length 90 [2024-11-07 16:45:17,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:45:17,727 INFO L471 AbstractCegarLoop]: Abstraction has 1410 states and 1990 transitions. [2024-11-07 16:45:17,727 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-07 16:45:17,727 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 1990 transitions. [2024-11-07 16:45:17,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-07 16:45:17,728 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:45:17,728 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:45:17,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 16:45:17,728 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-07 16:45:17,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:45:17,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1179483397, now seen corresponding path program 1 times [2024-11-07 16:45:17,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:45:17,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423319386] [2024-11-07 16:45:17,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:45:17,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:45:19,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:19,836 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-07 16:45:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:19,844 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-07 16:45:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:19,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 16:45:19,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:19,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-07 16:45:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:19,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-07 16:45:19,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:19,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-11-07 16:45:19,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:19,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2024-11-07 16:45:19,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 16:45:19,872 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-07 16:45:19,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 16:45:19,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423319386] [2024-11-07 16:45:19,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [423319386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 16:45:19,873 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 16:45:19,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 16:45:19,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935599752] [2024-11-07 16:45:19,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 16:45:19,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 16:45:19,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 16:45:19,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 16:45:19,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 16:45:19,874 INFO L87 Difference]: Start difference. First operand 1410 states and 1990 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-07 16:45:20,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 16:45:20,641 INFO L93 Difference]: Finished difference Result 1434 states and 2021 transitions. [2024-11-07 16:45:20,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 16:45:20,641 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) Word has length 90 [2024-11-07 16:45:20,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 16:45:20,645 INFO L225 Difference]: With dead ends: 1434 [2024-11-07 16:45:20,645 INFO L226 Difference]: Without dead ends: 1434 [2024-11-07 16:45:20,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-07 16:45:20,647 INFO L432 NwaCegarLoop]: 696 mSDtfsCounter, 184 mSDsluCounter, 1927 mSDsCounter, 0 mSdLazyCounter, 1176 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 200 SdHoareTripleChecker+Valid, 2623 SdHoareTripleChecker+Invalid, 1254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 1176 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 16:45:20,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [200 Valid, 2623 Invalid, 1254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 1176 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 16:45:20,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1434 states. [2024-11-07 16:45:20,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1434 to 1408. [2024-11-07 16:45:20,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1408 states, 942 states have (on average 1.7016985138004246) internal successors, (1603), 1146 states have internal predecessors, (1603), 192 states have call successors, (192), 85 states have call predecessors, (192), 85 states have return successors, (192), 189 states have call predecessors, (192), 192 states have call successors, (192) [2024-11-07 16:45:20,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1987 transitions. [2024-11-07 16:45:20,663 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1987 transitions. Word has length 90 [2024-11-07 16:45:20,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 16:45:20,663 INFO L471 AbstractCegarLoop]: Abstraction has 1408 states and 1987 transitions. [2024-11-07 16:45:20,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-07 16:45:20,663 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1987 transitions. [2024-11-07 16:45:20,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-07 16:45:20,663 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 16:45:20,663 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 3, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 16:45:20,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 16:45:20,663 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-07 16:45:20,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 16:45:20,664 INFO L85 PathProgramCache]: Analyzing trace with hash -2090719882, now seen corresponding path program 1 times [2024-11-07 16:45:20,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 16:45:20,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800091867] [2024-11-07 16:45:20,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 16:45:20,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 16:45:22,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat