./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 923bc1d588e1fd31be856d665fc28cbbbed3a9b002263483bc91775fdffd6378 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 06:58:14,078 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 06:58:14,137 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-19 06:58:14,150 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 06:58:14,151 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 06:58:14,174 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 06:58:14,175 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 06:58:14,175 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 06:58:14,175 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 06:58:14,176 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 06:58:14,176 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 06:58:14,176 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 06:58:14,177 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 06:58:14,178 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 06:58:14,179 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 06:58:14,179 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 06:58:14,180 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 06:58:14,180 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 06:58:14,180 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 06:58:14,180 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 06:58:14,180 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-19 06:58:14,181 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-19 06:58:14,181 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-19 06:58:14,181 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 06:58:14,184 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-19 06:58:14,184 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 06:58:14,184 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 06:58:14,184 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 06:58:14,185 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 06:58:14,185 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 06:58:14,185 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 06:58:14,185 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 06:58:14,185 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 06:58:14,185 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 06:58:14,186 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 06:58:14,186 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 06:58:14,186 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 06:58:14,186 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 06:58:14,186 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 06:58:14,186 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 06:58:14,186 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 06:58:14,187 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 06:58:14,187 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 923bc1d588e1fd31be856d665fc28cbbbed3a9b002263483bc91775fdffd6378 [2024-11-19 06:58:14,392 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 06:58:14,425 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 06:58:14,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 06:58:14,429 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 06:58:14,429 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 06:58:14,430 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb.i [2024-11-19 06:58:15,743 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 06:58:16,043 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 06:58:16,044 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ddv-machzwd/ddv_machzwd_inb.i [2024-11-19 06:58:16,073 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3a97bb5a/006cd95d1aff4867a72a7f75d3f2a1aa/FLAG26eab1017 [2024-11-19 06:58:16,089 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3a97bb5a/006cd95d1aff4867a72a7f75d3f2a1aa [2024-11-19 06:58:16,095 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 06:58:16,096 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 06:58:16,100 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 06:58:16,101 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 06:58:16,105 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 06:58:16,106 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:58:16" (1/1) ... [2024-11-19 06:58:16,107 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1671f62f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:16, skipping insertion in model container [2024-11-19 06:58:16,108 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 06:58:16" (1/1) ... [2024-11-19 06:58:16,164 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 06:58:17,131 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-19 06:58:17,148 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-19 06:58:17,161 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-19 06:58:17,261 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-19 06:58:17,280 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-19 06:58:17,281 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 06:58:17,334 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 06:58:17,475 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 06:58:17,615 INFO L204 MainTranslator]: Completed translation [2024-11-19 06:58:17,615 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:17 WrapperNode [2024-11-19 06:58:17,615 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 06:58:17,616 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 06:58:17,616 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 06:58:17,616 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 06:58:17,622 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:17" (1/1) ... [2024-11-19 06:58:17,686 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:17" (1/1) ... [2024-11-19 06:58:17,802 INFO L138 Inliner]: procedures = 472, calls = 2681, calls flagged for inlining = 55, calls inlined = 37, statements flattened = 3384 [2024-11-19 06:58:17,803 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 06:58:17,804 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 06:58:17,804 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 06:58:17,805 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 06:58:17,818 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:17" (1/1) ... [2024-11-19 06:58:17,819 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:17" (1/1) ... [2024-11-19 06:58:17,836 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:17" (1/1) ... [2024-11-19 06:58:17,917 INFO L175 MemorySlicer]: Split 2037 memory accesses to 27 slices as follows [5, 3, 35, 1040, 480, 59, 12, 35, 11, 5, 15, 120, 67, 2, 16, 2, 20, 37, 4, 0, 2, 5, 18, 2, 34, 5, 3]. 51 percent of accesses are in the largest equivalence class. The 1935 initializations are split as follows [3, 3, 15, 1040, 480, 59, 6, 32, 2, 1, 10, 120, 67, 0, 5, 2, 4, 25, 4, 0, 0, 4, 18, 0, 34, 1, 0]. The 37 writes are split as follows [0, 0, 6, 0, 0, 0, 6, 0, 5, 1, 2, 0, 0, 2, 8, 0, 4, 0, 0, 0, 0, 0, 0, 1, 0, 2, 0]. [2024-11-19 06:58:17,917 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:17" (1/1) ... [2024-11-19 06:58:17,917 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:17" (1/1) ... [2024-11-19 06:58:17,968 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:17" (1/1) ... [2024-11-19 06:58:17,978 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:17" (1/1) ... [2024-11-19 06:58:18,045 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:17" (1/1) ... [2024-11-19 06:58:18,055 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:17" (1/1) ... [2024-11-19 06:58:18,077 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 06:58:18,077 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 06:58:18,078 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 06:58:18,078 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 06:58:18,078 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:17" (1/1) ... [2024-11-19 06:58:18,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 06:58:18,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:58:18,114 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 06:58:18,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 06:58:18,158 INFO L130 BoogieDeclarations]: Found specification of procedure zf_timer_off [2024-11-19 06:58:18,158 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_timer_off [2024-11-19 06:58:18,158 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-11-19 06:58:18,159 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_begin [2024-11-19 06:58:18,159 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2024-11-19 06:58:18,160 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2024-11-19 06:58:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-19 06:58:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2024-11-19 06:58:18,160 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2024-11-19 06:58:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-11-19 06:58:18,160 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_atomic_end [2024-11-19 06:58:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure zf_get_control [2024-11-19 06:58:18,160 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_get_control [2024-11-19 06:58:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-19 06:58:18,160 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-19 06:58:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-19 06:58:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-19 06:58:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-19 06:58:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-19 06:58:18,161 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-19 06:58:18,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-19 06:58:18,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-19 06:58:18,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-19 06:58:18,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-19 06:58:18,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-19 06:58:18,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-19 06:58:18,162 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-19 06:58:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-19 06:58:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-19 06:58:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-19 06:58:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-19 06:58:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-19 06:58:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#19 [2024-11-19 06:58:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#20 [2024-11-19 06:58:18,163 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#21 [2024-11-19 06:58:18,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#22 [2024-11-19 06:58:18,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#23 [2024-11-19 06:58:18,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#24 [2024-11-19 06:58:18,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#25 [2024-11-19 06:58:18,164 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#26 [2024-11-19 06:58:18,164 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-19 06:58:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure request_region [2024-11-19 06:58:18,165 INFO L138 BoogieDeclarations]: Found implementation of procedure request_region [2024-11-19 06:58:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 06:58:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-19 06:58:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-19 06:58:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-19 06:58:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-19 06:58:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-19 06:58:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-19 06:58:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-19 06:58:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2024-11-19 06:58:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2024-11-19 06:58:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#9 [2024-11-19 06:58:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#10 [2024-11-19 06:58:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#11 [2024-11-19 06:58:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#12 [2024-11-19 06:58:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#13 [2024-11-19 06:58:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#14 [2024-11-19 06:58:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#15 [2024-11-19 06:58:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#16 [2024-11-19 06:58:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#17 [2024-11-19 06:58:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#18 [2024-11-19 06:58:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#19 [2024-11-19 06:58:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#20 [2024-11-19 06:58:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#21 [2024-11-19 06:58:18,166 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#22 [2024-11-19 06:58:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#23 [2024-11-19 06:58:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#24 [2024-11-19 06:58:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#25 [2024-11-19 06:58:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#26 [2024-11-19 06:58:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2024-11-19 06:58:18,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2024-11-19 06:58:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_irqsave [2024-11-19 06:58:18,167 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_irqsave [2024-11-19 06:58:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2024-11-19 06:58:18,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2024-11-19 06:58:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure release_region [2024-11-19 06:58:18,167 INFO L138 BoogieDeclarations]: Found implementation of procedure release_region [2024-11-19 06:58:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 06:58:18,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 06:58:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock_init [2024-11-19 06:58:18,167 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock_init [2024-11-19 06:58:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 06:58:18,167 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 06:58:18,167 INFO L130 BoogieDeclarations]: Found specification of procedure del_timer [2024-11-19 06:58:18,168 INFO L138 BoogieDeclarations]: Found implementation of procedure del_timer [2024-11-19 06:58:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-19 06:58:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-19 06:58:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-19 06:58:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-19 06:58:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-19 06:58:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-19 06:58:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-19 06:58:18,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-19 06:58:18,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2024-11-19 06:58:18,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2024-11-19 06:58:18,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#9 [2024-11-19 06:58:18,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#10 [2024-11-19 06:58:18,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#11 [2024-11-19 06:58:18,170 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#12 [2024-11-19 06:58:18,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#13 [2024-11-19 06:58:18,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#14 [2024-11-19 06:58:18,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#15 [2024-11-19 06:58:18,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#16 [2024-11-19 06:58:18,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#17 [2024-11-19 06:58:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#18 [2024-11-19 06:58:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#19 [2024-11-19 06:58:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#20 [2024-11-19 06:58:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#21 [2024-11-19 06:58:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#22 [2024-11-19 06:58:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#23 [2024-11-19 06:58:18,172 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#24 [2024-11-19 06:58:18,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#25 [2024-11-19 06:58:18,173 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#26 [2024-11-19 06:58:18,173 INFO L130 BoogieDeclarations]: Found specification of procedure add_timer [2024-11-19 06:58:18,173 INFO L138 BoogieDeclarations]: Found implementation of procedure add_timer [2024-11-19 06:58:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure cdev_add [2024-11-19 06:58:18,174 INFO L138 BoogieDeclarations]: Found implementation of procedure cdev_add [2024-11-19 06:58:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-19 06:58:18,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~$Pointer$~TO~int [2024-11-19 06:58:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-19 06:58:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-19 06:58:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-19 06:58:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-19 06:58:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-19 06:58:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-19 06:58:18,174 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-19 06:58:18,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2024-11-19 06:58:18,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2024-11-19 06:58:18,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#9 [2024-11-19 06:58:18,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#10 [2024-11-19 06:58:18,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#11 [2024-11-19 06:58:18,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#12 [2024-11-19 06:58:18,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#13 [2024-11-19 06:58:18,175 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#14 [2024-11-19 06:58:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#15 [2024-11-19 06:58:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#16 [2024-11-19 06:58:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#17 [2024-11-19 06:58:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#18 [2024-11-19 06:58:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#19 [2024-11-19 06:58:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#20 [2024-11-19 06:58:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#21 [2024-11-19 06:58:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#22 [2024-11-19 06:58:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#23 [2024-11-19 06:58:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#24 [2024-11-19 06:58:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#25 [2024-11-19 06:58:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#26 [2024-11-19 06:58:18,176 INFO L130 BoogieDeclarations]: Found specification of procedure printk [2024-11-19 06:58:18,177 INFO L138 BoogieDeclarations]: Found implementation of procedure printk [2024-11-19 06:58:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2024-11-19 06:58:18,177 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2024-11-19 06:58:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure outb [2024-11-19 06:58:18,177 INFO L138 BoogieDeclarations]: Found implementation of procedure outb [2024-11-19 06:58:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure misc_deregister [2024-11-19 06:58:18,177 INFO L138 BoogieDeclarations]: Found implementation of procedure misc_deregister [2024-11-19 06:58:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure assert_context_process [2024-11-19 06:58:18,177 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_context_process [2024-11-19 06:58:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure zf_set_control [2024-11-19 06:58:18,177 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_set_control [2024-11-19 06:58:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-19 06:58:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-19 06:58:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-19 06:58:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-19 06:58:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-19 06:58:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-19 06:58:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-19 06:58:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-19 06:58:18,177 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-19 06:58:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-19 06:58:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-19 06:58:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-19 06:58:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-19 06:58:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-19 06:58:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-19 06:58:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-19 06:58:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-19 06:58:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-19 06:58:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-19 06:58:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#19 [2024-11-19 06:58:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#20 [2024-11-19 06:58:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#21 [2024-11-19 06:58:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#22 [2024-11-19 06:58:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#23 [2024-11-19 06:58:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#24 [2024-11-19 06:58:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#25 [2024-11-19 06:58:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#26 [2024-11-19 06:58:18,178 INFO L130 BoogieDeclarations]: Found specification of procedure zf_readw [2024-11-19 06:58:18,178 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_readw [2024-11-19 06:58:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure zf_ping [2024-11-19 06:58:18,179 INFO L138 BoogieDeclarations]: Found implementation of procedure zf_ping [2024-11-19 06:58:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2024-11-19 06:58:18,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~TO~int [2024-11-19 06:58:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2024-11-19 06:58:18,179 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2024-11-19 06:58:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-19 06:58:18,179 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~TO~int [2024-11-19 06:58:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 06:58:18,179 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-19 06:58:18,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-19 06:58:18,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-19 06:58:18,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-19 06:58:18,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-19 06:58:18,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-19 06:58:18,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-19 06:58:18,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-19 06:58:18,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-19 06:58:18,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-19 06:58:18,182 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-19 06:58:18,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-19 06:58:18,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-19 06:58:18,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-19 06:58:18,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-19 06:58:18,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-19 06:58:18,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-19 06:58:18,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-19 06:58:18,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#19 [2024-11-19 06:58:18,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#20 [2024-11-19 06:58:18,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#21 [2024-11-19 06:58:18,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#22 [2024-11-19 06:58:18,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#23 [2024-11-19 06:58:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#24 [2024-11-19 06:58:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#25 [2024-11-19 06:58:18,184 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#26 [2024-11-19 06:58:18,566 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 06:58:18,569 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 06:58:21,985 INFO L? ?]: Removed 650 outVars from TransFormulas that were not future-live. [2024-11-19 06:58:21,985 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 06:58:22,022 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 06:58:22,023 INFO L316 CfgBuilder]: Removed 4 assume(true) statements. [2024-11-19 06:58:22,023 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:58:22 BoogieIcfgContainer [2024-11-19 06:58:22,023 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 06:58:22,024 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 06:58:22,024 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 06:58:22,029 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 06:58:22,029 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 06:58:16" (1/3) ... [2024-11-19 06:58:22,030 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@792e4789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:58:22, skipping insertion in model container [2024-11-19 06:58:22,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 06:58:17" (2/3) ... [2024-11-19 06:58:22,031 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@792e4789 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 06:58:22, skipping insertion in model container [2024-11-19 06:58:22,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 06:58:22" (3/3) ... [2024-11-19 06:58:22,032 INFO L112 eAbstractionObserver]: Analyzing ICFG ddv_machzwd_inb.i [2024-11-19 06:58:22,047 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 06:58:22,047 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 205 error locations. [2024-11-19 06:58:22,141 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 06:58:22,151 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;@3787f6a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 06:58:22,151 INFO L334 AbstractCegarLoop]: Starting to check reachability of 205 error locations. [2024-11-19 06:58:22,160 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) [2024-11-19 06:58:22,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-19 06:58:22,172 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:58:22,172 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-19 06:58:22,173 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)] === [2024-11-19 06:58:22,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:58:22,179 INFO L85 PathProgramCache]: Analyzing trace with hash 460813917, now seen corresponding path program 1 times [2024-11-19 06:58:22,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:58:22,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693638739] [2024-11-19 06:58:22,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:58:22,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:58:24,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:58:25,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:58:25,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:58:25,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693638739] [2024-11-19 06:58:25,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693638739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:58:25,173 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:58:25,173 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 06:58:25,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1804555242] [2024-11-19 06:58:25,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:58:25,180 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:58:25,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:58:25,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:58:25,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:58:25,211 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) [2024-11-19 06:58:26,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:58:26,475 INFO L93 Difference]: Finished difference Result 1270 states and 1534 transitions. [2024-11-19 06:58:26,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:58:26,480 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 [2024-11-19 06:58:26,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:58:26,496 INFO L225 Difference]: With dead ends: 1270 [2024-11-19 06:58:26,497 INFO L226 Difference]: Without dead ends: 1266 [2024-11-19 06:58:26,498 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 [2024-11-19 06:58:26,500 INFO L432 NwaCegarLoop]: 771 mSDtfsCounter, 728 mSDsluCounter, 1797 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s 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, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 06:58:26,505 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 2568 Invalid, 1125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 06:58:26,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2024-11-19 06:58:26,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1053. [2024-11-19 06:58:26,588 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) [2024-11-19 06:58:26,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1053 states to 1053 states and 1438 transitions. [2024-11-19 06:58:26,594 INFO L78 Accepts]: Start accepts. Automaton has 1053 states and 1438 transitions. Word has length 5 [2024-11-19 06:58:26,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:58:26,594 INFO L471 AbstractCegarLoop]: Abstraction has 1053 states and 1438 transitions. [2024-11-19 06:58:26,594 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) [2024-11-19 06:58:26,595 INFO L276 IsEmpty]: Start isEmpty. Operand 1053 states and 1438 transitions. [2024-11-19 06:58:26,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2024-11-19 06:58:26,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:58:26,595 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2024-11-19 06:58:26,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 06:58:26,595 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)] === [2024-11-19 06:58:26,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:58:26,596 INFO L85 PathProgramCache]: Analyzing trace with hash 460813918, now seen corresponding path program 1 times [2024-11-19 06:58:26,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:58:26,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606615706] [2024-11-19 06:58:26,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:58:26,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:58:28,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:58:29,455 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:58:29,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:58:29,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606615706] [2024-11-19 06:58:29,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606615706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:58:29,456 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:58:29,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 06:58:29,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126872874] [2024-11-19 06:58:29,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:58:29,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:58:29,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:58:29,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:58:29,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:58:29,459 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) [2024-11-19 06:58:30,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:58:30,310 INFO L93 Difference]: Finished difference Result 1193 states and 1541 transitions. [2024-11-19 06:58:30,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:58:30,315 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 [2024-11-19 06:58:30,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:58:30,326 INFO L225 Difference]: With dead ends: 1193 [2024-11-19 06:58:30,326 INFO L226 Difference]: Without dead ends: 1193 [2024-11-19 06:58:30,328 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 [2024-11-19 06:58:30,329 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, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 06:58:30,329 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 2829 Invalid, 868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 867 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 06:58:30,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1193 states. [2024-11-19 06:58:30,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1193 to 1134. [2024-11-19 06:58:30,371 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) [2024-11-19 06:58:30,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1134 states to 1134 states and 1537 transitions. [2024-11-19 06:58:30,377 INFO L78 Accepts]: Start accepts. Automaton has 1134 states and 1537 transitions. Word has length 5 [2024-11-19 06:58:30,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:58:30,378 INFO L471 AbstractCegarLoop]: Abstraction has 1134 states and 1537 transitions. [2024-11-19 06:58:30,378 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) [2024-11-19 06:58:30,379 INFO L276 IsEmpty]: Start isEmpty. Operand 1134 states and 1537 transitions. [2024-11-19 06:58:30,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-19 06:58:30,379 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:58:30,379 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:58:30,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 06:58:30,380 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)] === [2024-11-19 06:58:30,380 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:58:30,381 INFO L85 PathProgramCache]: Analyzing trace with hash -1849255734, now seen corresponding path program 1 times [2024-11-19 06:58:30,381 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:58:30,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736893384] [2024-11-19 06:58:30,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:58:30,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:58:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:58:32,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:58:32,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:58:32,603 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736893384] [2024-11-19 06:58:32,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736893384] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:58:32,603 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:58:32,603 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:58:32,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608779920] [2024-11-19 06:58:32,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:58:32,604 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:58:32,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:58:32,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:58:32,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:58:32,605 INFO L87 Difference]: Start difference. First operand 1134 states and 1537 transitions. Second operand has 3 states, 2 states have (on average 4.5) 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) [2024-11-19 06:58:33,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:58:33,034 INFO L93 Difference]: Finished difference Result 1340 states and 1624 transitions. [2024-11-19 06:58:33,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:58:33,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) 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 [2024-11-19 06:58:33,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:58:33,039 INFO L225 Difference]: With dead ends: 1340 [2024-11-19 06:58:33,039 INFO L226 Difference]: Without dead ends: 1340 [2024-11-19 06:58:33,039 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:58:33,040 INFO L432 NwaCegarLoop]: 755 mSDtfsCounter, 710 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 396 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 710 SdHoareTripleChecker+Valid, 1347 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 396 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 06:58:33,040 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [710 Valid, 1347 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 396 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 06:58:33,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1340 states. [2024-11-19 06:58:33,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1340 to 1133. [2024-11-19 06:58:33,061 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) [2024-11-19 06:58:33,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1133 states to 1133 states and 1532 transitions. [2024-11-19 06:58:33,065 INFO L78 Accepts]: Start accepts. Automaton has 1133 states and 1532 transitions. Word has length 11 [2024-11-19 06:58:33,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:58:33,065 INFO L471 AbstractCegarLoop]: Abstraction has 1133 states and 1532 transitions. [2024-11-19 06:58:33,065 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) 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) [2024-11-19 06:58:33,065 INFO L276 IsEmpty]: Start isEmpty. Operand 1133 states and 1532 transitions. [2024-11-19 06:58:33,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-11-19 06:58:33,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:58:33,066 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:58:33,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 06:58:33,066 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)] === [2024-11-19 06:58:33,066 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:58:33,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1849255733, now seen corresponding path program 1 times [2024-11-19 06:58:33,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:58:33,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260440881] [2024-11-19 06:58:33,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:58:33,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:58:34,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:58:35,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:58:35,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:58:35,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260440881] [2024-11-19 06:58:35,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260440881] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:58:35,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:58:35,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 06:58:35,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845139701] [2024-11-19 06:58:35,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:58:35,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 06:58:35,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:58:35,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 06:58:35,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 06:58:35,454 INFO L87 Difference]: Start difference. First operand 1133 states and 1532 transitions. Second operand has 4 states, 3 states have (on average 3.0) 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) [2024-11-19 06:58:36,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:58:36,020 INFO L93 Difference]: Finished difference Result 1197 states and 1547 transitions. [2024-11-19 06:58:36,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 06:58:36,021 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) 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 [2024-11-19 06:58:36,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:58:36,026 INFO L225 Difference]: With dead ends: 1197 [2024-11-19 06:58:36,027 INFO L226 Difference]: Without dead ends: 1197 [2024-11-19 06:58:36,027 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 06:58:36,028 INFO L432 NwaCegarLoop]: 886 mSDtfsCounter, 286 mSDsluCounter, 734 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 1620 SdHoareTripleChecker+Invalid, 425 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 06:58:36,028 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [286 Valid, 1620 Invalid, 425 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 06:58:36,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1197 states. [2024-11-19 06:58:36,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1197 to 1136. [2024-11-19 06:58:36,047 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) [2024-11-19 06:58:36,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1136 states to 1136 states and 1535 transitions. [2024-11-19 06:58:36,053 INFO L78 Accepts]: Start accepts. Automaton has 1136 states and 1535 transitions. Word has length 11 [2024-11-19 06:58:36,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:58:36,053 INFO L471 AbstractCegarLoop]: Abstraction has 1136 states and 1535 transitions. [2024-11-19 06:58:36,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) 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) [2024-11-19 06:58:36,053 INFO L276 IsEmpty]: Start isEmpty. Operand 1136 states and 1535 transitions. [2024-11-19 06:58:36,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-11-19 06:58:36,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:58:36,054 INFO L215 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:58:36,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 06:58:36,054 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)] === [2024-11-19 06:58:36,054 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:58:36,054 INFO L85 PathProgramCache]: Analyzing trace with hash 368369967, now seen corresponding path program 1 times [2024-11-19 06:58:36,054 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:58:36,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [698701250] [2024-11-19 06:58:36,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:58:36,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:58:37,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:58:38,486 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:58:38,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:58:38,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [698701250] [2024-11-19 06:58:38,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [698701250] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:58:38,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [268283088] [2024-11-19 06:58:38,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:58:38,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:58:38,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:58:38,490 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:58:38,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 06:58:41,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:58:41,067 INFO L255 TraceCheckSpWp]: Trace formula consists of 5480 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-19 06:58:41,076 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:58:41,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:58:41,193 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:58:41,259 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:58:41,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [268283088] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 06:58:41,260 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 06:58:41,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3, 4] total 11 [2024-11-19 06:58:41,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008777610] [2024-11-19 06:58:41,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 06:58:41,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 06:58:41,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:58:41,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 06:58:41,261 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-19 06:58:41,262 INFO L87 Difference]: Start difference. First operand 1136 states and 1535 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-19 06:58:43,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:58:43,394 INFO L93 Difference]: Finished difference Result 1413 states and 1786 transitions. [2024-11-19 06:58:43,394 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 06:58:43,395 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 3 states have call successors, (3), 2 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 [2024-11-19 06:58:43,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:58:43,400 INFO L225 Difference]: With dead ends: 1413 [2024-11-19 06:58:43,401 INFO L226 Difference]: Without dead ends: 1413 [2024-11-19 06:58:43,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=94, Invalid=212, Unknown=0, NotChecked=0, Total=306 [2024-11-19 06:58:43,402 INFO L432 NwaCegarLoop]: 894 mSDtfsCounter, 925 mSDsluCounter, 4356 mSDsCounter, 0 mSdLazyCounter, 2502 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 925 SdHoareTripleChecker+Valid, 5250 SdHoareTripleChecker+Invalid, 2695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 2502 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-19 06:58:43,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [925 Valid, 5250 Invalid, 2695 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 2502 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-19 06:58:43,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1413 states. [2024-11-19 06:58:43,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1413 to 1289. [2024-11-19 06:58:43,431 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) [2024-11-19 06:58:43,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1289 states to 1289 states and 1768 transitions. [2024-11-19 06:58:43,440 INFO L78 Accepts]: Start accepts. Automaton has 1289 states and 1768 transitions. Word has length 14 [2024-11-19 06:58:43,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:58:43,440 INFO L471 AbstractCegarLoop]: Abstraction has 1289 states and 1768 transitions. [2024-11-19 06:58:43,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-19 06:58:43,440 INFO L276 IsEmpty]: Start isEmpty. Operand 1289 states and 1768 transitions. [2024-11-19 06:58:43,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-19 06:58:43,441 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:58:43,441 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:58:43,470 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 06:58:43,641 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:58:43,642 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)] === [2024-11-19 06:58:43,642 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:58:43,642 INFO L85 PathProgramCache]: Analyzing trace with hash 662636277, now seen corresponding path program 1 times [2024-11-19 06:58:43,642 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:58:43,642 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951930307] [2024-11-19 06:58:43,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:58:43,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:58:45,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:58:45,536 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-19 06:58:45,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:58:45,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951930307] [2024-11-19 06:58:45,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951930307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:58:45,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:58:45,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:58:45,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [19190338] [2024-11-19 06:58:45,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:58:45,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:58:45,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:58:45,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:58:45,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:58:45,539 INFO L87 Difference]: Start difference. First operand 1289 states and 1768 transitions. Second operand has 3 states, 2 states have (on average 7.0) 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) [2024-11-19 06:58:45,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:58:45,974 INFO L93 Difference]: Finished difference Result 1497 states and 1861 transitions. [2024-11-19 06:58:45,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:58:45,975 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) 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 [2024-11-19 06:58:45,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:58:45,979 INFO L225 Difference]: With dead ends: 1497 [2024-11-19 06:58:45,980 INFO L226 Difference]: Without dead ends: 1497 [2024-11-19 06:58:45,980 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:58:45,981 INFO L432 NwaCegarLoop]: 762 mSDtfsCounter, 695 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 394 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 695 SdHoareTripleChecker+Valid, 1351 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 394 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 06:58:45,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [695 Valid, 1351 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 394 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 06:58:45,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1497 states. [2024-11-19 06:58:46,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1497 to 1287. [2024-11-19 06:58:46,003 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) [2024-11-19 06:58:46,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1287 states to 1287 states and 1759 transitions. [2024-11-19 06:58:46,007 INFO L78 Accepts]: Start accepts. Automaton has 1287 states and 1759 transitions. Word has length 25 [2024-11-19 06:58:46,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:58:46,008 INFO L471 AbstractCegarLoop]: Abstraction has 1287 states and 1759 transitions. [2024-11-19 06:58:46,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) 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) [2024-11-19 06:58:46,008 INFO L276 IsEmpty]: Start isEmpty. Operand 1287 states and 1759 transitions. [2024-11-19 06:58:46,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-19 06:58:46,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:58:46,009 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:58:46,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 06:58:46,009 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)] === [2024-11-19 06:58:46,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:58:46,010 INFO L85 PathProgramCache]: Analyzing trace with hash 662636278, now seen corresponding path program 1 times [2024-11-19 06:58:46,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:58:46,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1243940760] [2024-11-19 06:58:46,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:58:46,011 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:58:47,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:58:48,047 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:58:48,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:58:48,047 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1243940760] [2024-11-19 06:58:48,047 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1243940760] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 06:58:48,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554257460] [2024-11-19 06:58:48,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:58:48,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 06:58:48,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 06:58:48,050 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 06:58:48,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 06:58:50,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:58:50,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 5540 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 06:58:50,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 06:58:50,398 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:58:50,398 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 06:58:50,457 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 06:58:50,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554257460] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 06:58:50,458 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 06:58:50,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-11-19 06:58:50,458 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486044114] [2024-11-19 06:58:50,458 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 06:58:50,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-19 06:58:50,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:58:50,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-19 06:58:50,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-19 06:58:50,459 INFO L87 Difference]: Start difference. First operand 1287 states and 1759 transitions. Second operand has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 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) [2024-11-19 06:58:50,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:58:50,541 INFO L93 Difference]: Finished difference Result 1305 states and 1777 transitions. [2024-11-19 06:58:50,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 06:58:50,542 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 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 [2024-11-19 06:58:50,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:58:50,546 INFO L225 Difference]: With dead ends: 1305 [2024-11-19 06:58:50,546 INFO L226 Difference]: Without dead ends: 1305 [2024-11-19 06:58:50,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-11-19 06:58:50,547 INFO L432 NwaCegarLoop]: 827 mSDtfsCounter, 10 mSDsluCounter, 4110 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 4937 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 06:58:50,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 4937 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 06:58:50,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1305 states. [2024-11-19 06:58:50,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1305 to 1305. [2024-11-19 06:58:50,568 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) [2024-11-19 06:58:50,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1305 states to 1305 states and 1777 transitions. [2024-11-19 06:58:50,572 INFO L78 Accepts]: Start accepts. Automaton has 1305 states and 1777 transitions. Word has length 25 [2024-11-19 06:58:50,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:58:50,573 INFO L471 AbstractCegarLoop]: Abstraction has 1305 states and 1777 transitions. [2024-11-19 06:58:50,573 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 13 states have internal predecessors, (41), 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) [2024-11-19 06:58:50,573 INFO L276 IsEmpty]: Start isEmpty. Operand 1305 states and 1777 transitions. [2024-11-19 06:58:50,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-19 06:58:50,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:58:50,574 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 06:58:50,604 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 06:58:50,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-19 06:58:50,775 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)] === [2024-11-19 06:58:50,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:58:50,775 INFO L85 PathProgramCache]: Analyzing trace with hash 2031822710, now seen corresponding path program 2 times [2024-11-19 06:58:50,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:58:50,775 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446672411] [2024-11-19 06:58:50,776 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-19 06:58:50,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:58:52,481 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-19 06:58:52,481 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-19 06:58:52,970 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-19 06:58:52,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:58:52,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446672411] [2024-11-19 06:58:52,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446672411] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:58:52,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:58:52,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 06:58:52,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449495987] [2024-11-19 06:58:52,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:58:52,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 06:58:52,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:58:52,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 06:58:52,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 06:58:52,972 INFO L87 Difference]: Start difference. First operand 1305 states and 1777 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) 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) [2024-11-19 06:58:53,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:58:53,480 INFO L93 Difference]: Finished difference Result 1361 states and 1789 transitions. [2024-11-19 06:58:53,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 06:58:53,480 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) 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 [2024-11-19 06:58:53,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:58:53,484 INFO L225 Difference]: With dead ends: 1361 [2024-11-19 06:58:53,485 INFO L226 Difference]: Without dead ends: 1361 [2024-11-19 06:58:53,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 06:58:53,485 INFO L432 NwaCegarLoop]: 882 mSDtfsCounter, 256 mSDsluCounter, 722 mSDsCounter, 0 mSdLazyCounter, 416 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 1604 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 416 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 06:58:53,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 1604 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 416 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 06:58:53,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1361 states. [2024-11-19 06:58:53,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1361 to 1303. [2024-11-19 06:58:53,505 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) [2024-11-19 06:58:53,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1303 states to 1303 states and 1775 transitions. [2024-11-19 06:58:53,509 INFO L78 Accepts]: Start accepts. Automaton has 1303 states and 1775 transitions. Word has length 43 [2024-11-19 06:58:53,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:58:53,510 INFO L471 AbstractCegarLoop]: Abstraction has 1303 states and 1775 transitions. [2024-11-19 06:58:53,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) 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) [2024-11-19 06:58:53,511 INFO L276 IsEmpty]: Start isEmpty. Operand 1303 states and 1775 transitions. [2024-11-19 06:58:53,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-19 06:58:53,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:58:53,514 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] [2024-11-19 06:58:53,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 06:58:53,514 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)] === [2024-11-19 06:58:53,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:58:53,514 INFO L85 PathProgramCache]: Analyzing trace with hash -255387847, now seen corresponding path program 1 times [2024-11-19 06:58:53,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:58:53,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122184310] [2024-11-19 06:58:53,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:58:53,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:58:55,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:58:55,538 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-19 06:58:55,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:58:55,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122184310] [2024-11-19 06:58:55,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122184310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:58:55,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:58:55,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 06:58:55,539 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170013142] [2024-11-19 06:58:55,539 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:58:55,540 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:58:55,540 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:58:55,540 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:58:55,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:58:55,541 INFO L87 Difference]: Start difference. First operand 1303 states and 1775 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 06:58:55,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:58:55,560 INFO L93 Difference]: Finished difference Result 1302 states and 1772 transitions. [2024-11-19 06:58:55,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:58:55,560 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 1 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 [2024-11-19 06:58:55,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:58:55,564 INFO L225 Difference]: With dead ends: 1302 [2024-11-19 06:58:55,564 INFO L226 Difference]: Without dead ends: 1302 [2024-11-19 06:58:55,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:58:55,566 INFO L432 NwaCegarLoop]: 829 mSDtfsCounter, 818 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 818 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 06:58:55,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [818 Valid, 829 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 06:58:55,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1302 states. [2024-11-19 06:58:55,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1302 to 1302. [2024-11-19 06:58:55,585 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) [2024-11-19 06:58:55,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1302 states to 1302 states and 1772 transitions. [2024-11-19 06:58:55,589 INFO L78 Accepts]: Start accepts. Automaton has 1302 states and 1772 transitions. Word has length 67 [2024-11-19 06:58:55,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:58:55,591 INFO L471 AbstractCegarLoop]: Abstraction has 1302 states and 1772 transitions. [2024-11-19 06:58:55,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 06:58:55,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1302 states and 1772 transitions. [2024-11-19 06:58:55,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-19 06:58:55,593 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:58:55,593 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] [2024-11-19 06:58:55,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 06:58:55,593 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)] === [2024-11-19 06:58:55,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:58:55,594 INFO L85 PathProgramCache]: Analyzing trace with hash -624077580, now seen corresponding path program 1 times [2024-11-19 06:58:55,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:58:55,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131290487] [2024-11-19 06:58:55,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:58:55,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:58:57,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:58:57,662 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-19 06:58:57,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:58:57,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131290487] [2024-11-19 06:58:57,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131290487] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:58:57,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:58:57,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:58:57,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935685871] [2024-11-19 06:58:57,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:58:57,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:58:57,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:58:57,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:58:57,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:58:57,664 INFO L87 Difference]: Start difference. First operand 1302 states and 1772 transitions. Second operand has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-19 06:58:58,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:58:58,033 INFO L93 Difference]: Finished difference Result 1301 states and 1771 transitions. [2024-11-19 06:58:58,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:58:58,033 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (4), 1 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 [2024-11-19 06:58:58,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:58:58,037 INFO L225 Difference]: With dead ends: 1301 [2024-11-19 06:58:58,038 INFO L226 Difference]: Without dead ends: 1301 [2024-11-19 06:58:58,038 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:58:58,038 INFO L432 NwaCegarLoop]: 828 mSDtfsCounter, 1 mSDsluCounter, 620 mSDsCounter, 0 mSdLazyCounter, 223 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1448 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 223 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 06:58:58,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1448 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 223 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 06:58:58,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1301 states. [2024-11-19 06:58:58,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1301 to 1301. [2024-11-19 06:58:58,055 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) [2024-11-19 06:58:58,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1301 states to 1301 states and 1771 transitions. [2024-11-19 06:58:58,058 INFO L78 Accepts]: Start accepts. Automaton has 1301 states and 1771 transitions. Word has length 69 [2024-11-19 06:58:58,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:58:58,059 INFO L471 AbstractCegarLoop]: Abstraction has 1301 states and 1771 transitions. [2024-11-19 06:58:58,059 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.0) internal successors, (34), 3 states have internal predecessors, (34), 1 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2024-11-19 06:58:58,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1301 states and 1771 transitions. [2024-11-19 06:58:58,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-19 06:58:58,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:58:58,061 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] [2024-11-19 06:58:58,061 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 06:58:58,061 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)] === [2024-11-19 06:58:58,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:58:58,062 INFO L85 PathProgramCache]: Analyzing trace with hash -624077579, now seen corresponding path program 1 times [2024-11-19 06:58:58,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:58:58,062 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [306412893] [2024-11-19 06:58:58,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:58:58,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:58:59,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:59:00,360 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 146 trivial. 0 not checked. [2024-11-19 06:59:00,360 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:59:00,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [306412893] [2024-11-19 06:59:00,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [306412893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:59:00,361 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:59:00,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 06:59:00,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34033940] [2024-11-19 06:59:00,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:59:00,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 06:59:00,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:59:00,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 06:59:00,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 06:59:00,362 INFO L87 Difference]: Start difference. First operand 1301 states and 1771 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 06:59:00,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:59:00,688 INFO L93 Difference]: Finished difference Result 1300 states and 1770 transitions. [2024-11-19 06:59:00,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 06:59:00,688 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 1 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 [2024-11-19 06:59:00,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:59:00,692 INFO L225 Difference]: With dead ends: 1300 [2024-11-19 06:59:00,692 INFO L226 Difference]: Without dead ends: 1300 [2024-11-19 06:59:00,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:59:00,693 INFO L432 NwaCegarLoop]: 826 mSDtfsCounter, 813 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 220 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 813 SdHoareTripleChecker+Valid, 1451 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 220 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 06:59:00,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [813 Valid, 1451 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 220 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 06:59:00,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1300 states. [2024-11-19 06:59:00,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1300 to 1300. [2024-11-19 06:59:00,711 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) [2024-11-19 06:59:00,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1300 states to 1300 states and 1770 transitions. [2024-11-19 06:59:00,714 INFO L78 Accepts]: Start accepts. Automaton has 1300 states and 1770 transitions. Word has length 69 [2024-11-19 06:59:00,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:59:00,714 INFO L471 AbstractCegarLoop]: Abstraction has 1300 states and 1770 transitions. [2024-11-19 06:59:00,714 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 06:59:00,714 INFO L276 IsEmpty]: Start isEmpty. Operand 1300 states and 1770 transitions. [2024-11-19 06:59:00,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-19 06:59:00,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:59:00,715 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] [2024-11-19 06:59:00,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 06:59:00,715 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)] === [2024-11-19 06:59:00,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:59:00,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1556221740, now seen corresponding path program 1 times [2024-11-19 06:59:00,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:59:00,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748797051] [2024-11-19 06:59:00,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:59:00,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:59:02,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:59:02,579 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-19 06:59:02,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:59:02,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748797051] [2024-11-19 06:59:02,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748797051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:59:02,580 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:59:02,580 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:59:02,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1289497950] [2024-11-19 06:59:02,580 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:59:02,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:59:02,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:59:02,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:59:02,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:59:02,581 INFO L87 Difference]: Start difference. First operand 1300 states and 1770 transitions. Second operand has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 06:59:02,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:59:02,969 INFO L93 Difference]: Finished difference Result 1341 states and 1779 transitions. [2024-11-19 06:59:02,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:59:02,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 1 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 [2024-11-19 06:59:02,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:59:02,976 INFO L225 Difference]: With dead ends: 1341 [2024-11-19 06:59:02,976 INFO L226 Difference]: Without dead ends: 1328 [2024-11-19 06:59:02,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:59:02,977 INFO L432 NwaCegarLoop]: 813 mSDtfsCounter, 95 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 1405 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 06:59:02,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 1405 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 06:59:02,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1328 states. [2024-11-19 06:59:02,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1328 to 1295. [2024-11-19 06:59:03,000 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) [2024-11-19 06:59:03,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1295 states to 1295 states and 1762 transitions. [2024-11-19 06:59:03,003 INFO L78 Accepts]: Start accepts. Automaton has 1295 states and 1762 transitions. Word has length 74 [2024-11-19 06:59:03,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:59:03,003 INFO L471 AbstractCegarLoop]: Abstraction has 1295 states and 1762 transitions. [2024-11-19 06:59:03,003 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 17.5) internal successors, (35), 3 states have internal predecessors, (35), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 06:59:03,003 INFO L276 IsEmpty]: Start isEmpty. Operand 1295 states and 1762 transitions. [2024-11-19 06:59:03,004 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-19 06:59:03,004 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:59:03,004 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] [2024-11-19 06:59:03,005 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-19 06:59:03,005 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)] === [2024-11-19 06:59:03,005 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:59:03,005 INFO L85 PathProgramCache]: Analyzing trace with hash -1378484107, now seen corresponding path program 1 times [2024-11-19 06:59:03,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:59:03,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086950756] [2024-11-19 06:59:03,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:59:03,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:59:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:59:05,619 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-19 06:59:05,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:59:05,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086950756] [2024-11-19 06:59:05,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086950756] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:59:05,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:59:05,620 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 06:59:05,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620251389] [2024-11-19 06:59:05,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:59:05,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 06:59:05,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:59:05,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 06:59:05,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-19 06:59:05,621 INFO L87 Difference]: Start difference. First operand 1295 states and 1762 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-19 06:59:06,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:59:06,794 INFO L93 Difference]: Finished difference Result 1857 states and 2440 transitions. [2024-11-19 06:59:06,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 06:59:06,794 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 78 [2024-11-19 06:59:06,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:59:06,800 INFO L225 Difference]: With dead ends: 1857 [2024-11-19 06:59:06,800 INFO L226 Difference]: Without dead ends: 1857 [2024-11-19 06:59:06,800 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-19 06:59:06,800 INFO L432 NwaCegarLoop]: 699 mSDtfsCounter, 806 mSDsluCounter, 2527 mSDsCounter, 0 mSdLazyCounter, 1722 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 807 SdHoareTripleChecker+Valid, 3226 SdHoareTripleChecker+Invalid, 1730 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 06:59:06,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [807 Valid, 3226 Invalid, 1730 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 1722 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 06:59:06,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1857 states. [2024-11-19 06:59:06,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1857 to 1634. [2024-11-19 06:59:06,823 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) [2024-11-19 06:59:06,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1634 states to 1634 states and 2338 transitions. [2024-11-19 06:59:06,826 INFO L78 Accepts]: Start accepts. Automaton has 1634 states and 2338 transitions. Word has length 78 [2024-11-19 06:59:06,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:59:06,827 INFO L471 AbstractCegarLoop]: Abstraction has 1634 states and 2338 transitions. [2024-11-19 06:59:06,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-19 06:59:06,827 INFO L276 IsEmpty]: Start isEmpty. Operand 1634 states and 2338 transitions. [2024-11-19 06:59:06,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-19 06:59:06,829 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:59:06,830 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] [2024-11-19 06:59:06,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-19 06:59:06,830 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)] === [2024-11-19 06:59:06,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:59:06,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1378484106, now seen corresponding path program 1 times [2024-11-19 06:59:06,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:59:06,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919805906] [2024-11-19 06:59:06,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:59:06,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:59:08,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:59:09,784 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-19 06:59:09,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:59:09,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919805906] [2024-11-19 06:59:09,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919805906] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:59:09,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:59:09,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 06:59:09,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190128402] [2024-11-19 06:59:09,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:59:09,785 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 06:59:09,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:59:09,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 06:59:09,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 06:59:09,788 INFO L87 Difference]: Start difference. First operand 1634 states and 2338 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-19 06:59:11,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:59:11,229 INFO L93 Difference]: Finished difference Result 2065 states and 2674 transitions. [2024-11-19 06:59:11,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 06:59:11,230 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) Word has length 78 [2024-11-19 06:59:11,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:59:11,235 INFO L225 Difference]: With dead ends: 2065 [2024-11-19 06:59:11,235 INFO L226 Difference]: Without dead ends: 2065 [2024-11-19 06:59:11,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 06:59:11,236 INFO L432 NwaCegarLoop]: 589 mSDtfsCounter, 1631 mSDsluCounter, 1827 mSDsCounter, 0 mSdLazyCounter, 2186 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1632 SdHoareTripleChecker+Valid, 2416 SdHoareTripleChecker+Invalid, 2320 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 2186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-19 06:59:11,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1632 Valid, 2416 Invalid, 2320 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 2186 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-19 06:59:11,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2065 states. [2024-11-19 06:59:11,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2065 to 1819. [2024-11-19 06:59:11,260 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) [2024-11-19 06:59:11,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 2646 transitions. [2024-11-19 06:59:11,263 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 2646 transitions. Word has length 78 [2024-11-19 06:59:11,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:59:11,263 INFO L471 AbstractCegarLoop]: Abstraction has 1819 states and 2646 transitions. [2024-11-19 06:59:11,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 3 states have call predecessors, (5), 3 states have call successors, (5) [2024-11-19 06:59:11,264 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 2646 transitions. [2024-11-19 06:59:11,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-19 06:59:11,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:59:11,264 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] [2024-11-19 06:59:11,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-19 06:59:11,264 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)] === [2024-11-19 06:59:11,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:59:11,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1597499240, now seen corresponding path program 1 times [2024-11-19 06:59:11,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:59:11,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1681097827] [2024-11-19 06:59:11,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:59:11,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:59:12,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:59:13,327 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-19 06:59:13,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:59:13,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1681097827] [2024-11-19 06:59:13,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1681097827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:59:13,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:59:13,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 06:59:13,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [363619695] [2024-11-19 06:59:13,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:59:13,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 06:59:13,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:59:13,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 06:59:13,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:59:13,330 INFO L87 Difference]: Start difference. First operand 1819 states and 2646 transitions. Second operand has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 06:59:13,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:59:13,677 INFO L93 Difference]: Finished difference Result 2011 states and 2731 transitions. [2024-11-19 06:59:13,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 06:59:13,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 1 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 [2024-11-19 06:59:13,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:59:13,685 INFO L225 Difference]: With dead ends: 2011 [2024-11-19 06:59:13,685 INFO L226 Difference]: Without dead ends: 2011 [2024-11-19 06:59:13,686 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 06:59:13,687 INFO L432 NwaCegarLoop]: 1232 mSDtfsCounter, 650 mSDsluCounter, 592 mSDsCounter, 0 mSdLazyCounter, 385 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 1824 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 06:59:13,687 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 1824 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 385 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 06:59:13,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2011 states. [2024-11-19 06:59:13,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2011 to 1819. [2024-11-19 06:59:13,714 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) [2024-11-19 06:59:13,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1819 states to 1819 states and 2643 transitions. [2024-11-19 06:59:13,721 INFO L78 Accepts]: Start accepts. Automaton has 1819 states and 2643 transitions. Word has length 81 [2024-11-19 06:59:13,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:59:13,721 INFO L471 AbstractCegarLoop]: Abstraction has 1819 states and 2643 transitions. [2024-11-19 06:59:13,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 20.0) internal successors, (40), 3 states have internal predecessors, (40), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 06:59:13,721 INFO L276 IsEmpty]: Start isEmpty. Operand 1819 states and 2643 transitions. [2024-11-19 06:59:13,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-19 06:59:13,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:59:13,722 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] [2024-11-19 06:59:13,722 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 06:59:13,722 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)] === [2024-11-19 06:59:13,723 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:59:13,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1597499241, now seen corresponding path program 1 times [2024-11-19 06:59:13,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:59:13,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663225680] [2024-11-19 06:59:13,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:59:13,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:59:15,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:59:15,601 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 149 trivial. 0 not checked. [2024-11-19 06:59:15,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:59:15,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663225680] [2024-11-19 06:59:15,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663225680] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:59:15,602 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:59:15,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:59:15,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118350307] [2024-11-19 06:59:15,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:59:15,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:59:15,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:59:15,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:59:15,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:59:15,603 INFO L87 Difference]: Start difference. First operand 1819 states and 2643 transitions. Second operand has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 06:59:15,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:59:15,636 INFO L93 Difference]: Finished difference Result 1420 states and 2001 transitions. [2024-11-19 06:59:15,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:59:15,636 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (6), 1 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 [2024-11-19 06:59:15,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:59:15,640 INFO L225 Difference]: With dead ends: 1420 [2024-11-19 06:59:15,640 INFO L226 Difference]: Without dead ends: 1415 [2024-11-19 06:59:15,640 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:59:15,640 INFO L432 NwaCegarLoop]: 829 mSDtfsCounter, 0 mSDsluCounter, 2474 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3303 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 06:59:15,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3303 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 06:59:15,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1415 states. [2024-11-19 06:59:15,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1415 to 1415. [2024-11-19 06:59:15,655 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) [2024-11-19 06:59:15,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1415 states to 1415 states and 1995 transitions. [2024-11-19 06:59:15,657 INFO L78 Accepts]: Start accepts. Automaton has 1415 states and 1995 transitions. Word has length 81 [2024-11-19 06:59:15,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:59:15,657 INFO L471 AbstractCegarLoop]: Abstraction has 1415 states and 1995 transitions. [2024-11-19 06:59:15,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 06:59:15,658 INFO L276 IsEmpty]: Start isEmpty. Operand 1415 states and 1995 transitions. [2024-11-19 06:59:15,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-19 06:59:15,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:59:15,658 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] [2024-11-19 06:59:15,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-19 06:59:15,658 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)] === [2024-11-19 06:59:15,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:59:15,659 INFO L85 PathProgramCache]: Analyzing trace with hash 2000403802, now seen corresponding path program 1 times [2024-11-19 06:59:15,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:59:15,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417601734] [2024-11-19 06:59:15,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:59:15,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:59:17,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:59:18,272 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-19 06:59:18,273 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:59:18,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417601734] [2024-11-19 06:59:18,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1417601734] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:59:18,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:59:18,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:59:18,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034180118] [2024-11-19 06:59:18,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:59:18,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 06:59:18,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:59:18,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 06:59:18,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:59:18,275 INFO L87 Difference]: Start difference. First operand 1415 states and 1995 transitions. Second operand has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-19 06:59:19,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:59:19,254 INFO L93 Difference]: Finished difference Result 1591 states and 2008 transitions. [2024-11-19 06:59:19,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 06:59:19,254 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) Word has length 84 [2024-11-19 06:59:19,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:59:19,259 INFO L225 Difference]: With dead ends: 1591 [2024-11-19 06:59:19,259 INFO L226 Difference]: Without dead ends: 1591 [2024-11-19 06:59:19,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-19 06:59:19,259 INFO L432 NwaCegarLoop]: 695 mSDtfsCounter, 798 mSDsluCounter, 2089 mSDsCounter, 0 mSdLazyCounter, 1563 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 799 SdHoareTripleChecker+Valid, 2784 SdHoareTripleChecker+Invalid, 1567 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1563 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-19 06:59:19,259 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [799 Valid, 2784 Invalid, 1567 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1563 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-19 06:59:19,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1591 states. [2024-11-19 06:59:19,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1591 to 1414. [2024-11-19 06:59:19,276 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) [2024-11-19 06:59:19,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1414 states to 1414 states and 1994 transitions. [2024-11-19 06:59:19,278 INFO L78 Accepts]: Start accepts. Automaton has 1414 states and 1994 transitions. Word has length 84 [2024-11-19 06:59:19,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:59:19,278 INFO L471 AbstractCegarLoop]: Abstraction has 1414 states and 1994 transitions. [2024-11-19 06:59:19,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 3 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 3 states have call predecessors, (6), 3 states have call successors, (6) [2024-11-19 06:59:19,279 INFO L276 IsEmpty]: Start isEmpty. Operand 1414 states and 1994 transitions. [2024-11-19 06:59:19,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-19 06:59:19,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:59:19,279 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] [2024-11-19 06:59:19,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-19 06:59:19,279 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)] === [2024-11-19 06:59:19,280 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:59:19,280 INFO L85 PathProgramCache]: Analyzing trace with hash 2000403803, now seen corresponding path program 1 times [2024-11-19 06:59:19,280 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:59:19,281 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416291710] [2024-11-19 06:59:19,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:59:19,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:59:21,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:59:22,386 INFO L134 CoverageAnalysis]: Checked inductivity of 158 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2024-11-19 06:59:22,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:59:22,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416291710] [2024-11-19 06:59:22,387 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416291710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:59:22,387 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:59:22,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 06:59:22,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115789616] [2024-11-19 06:59:22,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:59:22,387 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 06:59:22,387 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:59:22,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 06:59:22,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 06:59:22,388 INFO L87 Difference]: Start difference. First operand 1414 states and 1994 transitions. Second operand has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-19 06:59:23,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:59:23,796 INFO L93 Difference]: Finished difference Result 1658 states and 2020 transitions. [2024-11-19 06:59:23,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 06:59:23,796 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 84 [2024-11-19 06:59:23,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:59:23,804 INFO L225 Difference]: With dead ends: 1658 [2024-11-19 06:59:23,804 INFO L226 Difference]: Without dead ends: 1658 [2024-11-19 06:59:23,804 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-19 06:59:23,805 INFO L432 NwaCegarLoop]: 583 mSDtfsCounter, 1619 mSDsluCounter, 1820 mSDsCounter, 0 mSdLazyCounter, 2175 mSolverCounterSat, 130 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1620 SdHoareTripleChecker+Valid, 2403 SdHoareTripleChecker+Invalid, 2305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 130 IncrementalHoareTripleChecker+Valid, 2175 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-19 06:59:23,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1620 Valid, 2403 Invalid, 2305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [130 Valid, 2175 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-19 06:59:23,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2024-11-19 06:59:23,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 1412. [2024-11-19 06:59:23,828 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) [2024-11-19 06:59:23,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1412 states to 1412 states and 1992 transitions. [2024-11-19 06:59:23,830 INFO L78 Accepts]: Start accepts. Automaton has 1412 states and 1992 transitions. Word has length 84 [2024-11-19 06:59:23,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:59:23,830 INFO L471 AbstractCegarLoop]: Abstraction has 1412 states and 1992 transitions. [2024-11-19 06:59:23,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 4 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-19 06:59:23,831 INFO L276 IsEmpty]: Start isEmpty. Operand 1412 states and 1992 transitions. [2024-11-19 06:59:23,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-19 06:59:23,831 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:59:23,831 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] [2024-11-19 06:59:23,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-19 06:59:23,832 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)] === [2024-11-19 06:59:23,832 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:59:23,832 INFO L85 PathProgramCache]: Analyzing trace with hash 1179483396, now seen corresponding path program 1 times [2024-11-19 06:59:23,832 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:59:23,832 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901844396] [2024-11-19 06:59:23,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:59:23,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:59:25,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:59:26,263 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-19 06:59:26,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:59:26,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901844396] [2024-11-19 06:59:26,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901844396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:59:26,264 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:59:26,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 06:59:26,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281235253] [2024-11-19 06:59:26,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:59:26,266 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:59:26,266 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:59:26,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:59:26,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:59:26,267 INFO L87 Difference]: Start difference. First operand 1412 states and 1992 transitions. Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-19 06:59:26,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:59:26,937 INFO L93 Difference]: Finished difference Result 1587 states and 2004 transitions. [2024-11-19 06:59:26,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 06:59:26,937 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 4 states have call successors, (7), 1 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 [2024-11-19 06:59:26,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:59:26,941 INFO L225 Difference]: With dead ends: 1587 [2024-11-19 06:59:26,941 INFO L226 Difference]: Without dead ends: 1587 [2024-11-19 06:59:26,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:59:26,942 INFO L432 NwaCegarLoop]: 698 mSDtfsCounter, 790 mSDsluCounter, 1538 mSDsCounter, 0 mSdLazyCounter, 937 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 790 SdHoareTripleChecker+Valid, 2236 SdHoareTripleChecker+Invalid, 943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 06:59:26,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [790 Valid, 2236 Invalid, 943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 937 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 06:59:26,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1587 states. [2024-11-19 06:59:26,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1587 to 1410. [2024-11-19 06:59:26,956 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) [2024-11-19 06:59:26,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1410 states to 1410 states and 1990 transitions. [2024-11-19 06:59:26,958 INFO L78 Accepts]: Start accepts. Automaton has 1410 states and 1990 transitions. Word has length 90 [2024-11-19 06:59:26,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:59:26,959 INFO L471 AbstractCegarLoop]: Abstraction has 1410 states and 1990 transitions. [2024-11-19 06:59:26,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-19 06:59:26,959 INFO L276 IsEmpty]: Start isEmpty. Operand 1410 states and 1990 transitions. [2024-11-19 06:59:26,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-19 06:59:26,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:59:26,959 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] [2024-11-19 06:59:26,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-19 06:59:26,960 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)] === [2024-11-19 06:59:26,960 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:59:26,960 INFO L85 PathProgramCache]: Analyzing trace with hash 1179483397, now seen corresponding path program 1 times [2024-11-19 06:59:26,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:59:26,960 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190036494] [2024-11-19 06:59:26,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:59:26,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:59:28,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:59:29,554 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-19 06:59:29,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:59:29,555 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190036494] [2024-11-19 06:59:29,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190036494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:59:29,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:59:29,555 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 06:59:29,555 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685806452] [2024-11-19 06:59:29,555 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:59:29,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 06:59:29,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:59:29,556 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 06:59:29,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:59:29,556 INFO L87 Difference]: Start difference. First operand 1410 states and 1990 transitions. Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-19 06:59:29,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:59:29,931 INFO L93 Difference]: Finished difference Result 1408 states and 1987 transitions. [2024-11-19 06:59:29,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 06:59:29,931 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (7), 1 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 [2024-11-19 06:59:29,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:59:29,935 INFO L225 Difference]: With dead ends: 1408 [2024-11-19 06:59:29,935 INFO L226 Difference]: Without dead ends: 1408 [2024-11-19 06:59:29,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 06:59:29,935 INFO L432 NwaCegarLoop]: 803 mSDtfsCounter, 55 mSDsluCounter, 1175 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 1978 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 06:59:29,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 1978 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 06:59:29,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1408 states. [2024-11-19 06:59:29,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1408 to 1408. [2024-11-19 06:59:29,949 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) [2024-11-19 06:59:29,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1408 states to 1408 states and 1987 transitions. [2024-11-19 06:59:29,951 INFO L78 Accepts]: Start accepts. Automaton has 1408 states and 1987 transitions. Word has length 90 [2024-11-19 06:59:29,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:59:29,952 INFO L471 AbstractCegarLoop]: Abstraction has 1408 states and 1987 transitions. [2024-11-19 06:59:29,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 3 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 3 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-19 06:59:29,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1408 states and 1987 transitions. [2024-11-19 06:59:29,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-19 06:59:29,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:59:29,953 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] [2024-11-19 06:59:29,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-19 06:59:29,953 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)] === [2024-11-19 06:59:29,953 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:59:29,953 INFO L85 PathProgramCache]: Analyzing trace with hash -2090719882, now seen corresponding path program 1 times [2024-11-19 06:59:29,953 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:59:29,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104982236] [2024-11-19 06:59:29,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:59:29,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:59:31,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:59:32,551 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-19 06:59:32,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:59:32,551 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104982236] [2024-11-19 06:59:32,551 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104982236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:59:32,551 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:59:32,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:59:32,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787119178] [2024-11-19 06:59:32,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:59:32,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 06:59:32,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:59:32,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 06:59:32,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:59:32,552 INFO L87 Difference]: Start difference. First operand 1408 states and 1987 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-19 06:59:33,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 06:59:33,345 INFO L93 Difference]: Finished difference Result 1583 states and 1999 transitions. [2024-11-19 06:59:33,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 06:59:33,346 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (7), 1 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 91 [2024-11-19 06:59:33,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 06:59:33,349 INFO L225 Difference]: With dead ends: 1583 [2024-11-19 06:59:33,349 INFO L226 Difference]: Without dead ends: 1583 [2024-11-19 06:59:33,349 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-19 06:59:33,349 INFO L432 NwaCegarLoop]: 693 mSDtfsCounter, 1423 mSDsluCounter, 1480 mSDsCounter, 0 mSdLazyCounter, 1125 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1423 SdHoareTripleChecker+Valid, 2173 SdHoareTripleChecker+Invalid, 1282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-19 06:59:33,350 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1423 Valid, 2173 Invalid, 1282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1125 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-19 06:59:33,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1583 states. [2024-11-19 06:59:33,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1583 to 1406. [2024-11-19 06:59:33,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1406 states, 942 states have (on average 1.6995753715498938) internal successors, (1601), 1144 states have internal predecessors, (1601), 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) [2024-11-19 06:59:33,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1406 states to 1406 states and 1985 transitions. [2024-11-19 06:59:33,366 INFO L78 Accepts]: Start accepts. Automaton has 1406 states and 1985 transitions. Word has length 91 [2024-11-19 06:59:33,367 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 06:59:33,367 INFO L471 AbstractCegarLoop]: Abstraction has 1406 states and 1985 transitions. [2024-11-19 06:59:33,367 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-19 06:59:33,367 INFO L276 IsEmpty]: Start isEmpty. Operand 1406 states and 1985 transitions. [2024-11-19 06:59:33,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-19 06:59:33,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 06:59:33,368 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] [2024-11-19 06:59:33,368 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-19 06:59:33,368 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [spin_lock_initErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, spin_lock_initErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 202 more)] === [2024-11-19 06:59:33,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 06:59:33,368 INFO L85 PathProgramCache]: Analyzing trace with hash -2090719881, now seen corresponding path program 1 times [2024-11-19 06:59:33,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 06:59:33,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574542948] [2024-11-19 06:59:33,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 06:59:33,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 06:59:35,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 06:59:36,001 INFO L134 CoverageAnalysis]: Checked inductivity of 164 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-19 06:59:36,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 06:59:36,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574542948] [2024-11-19 06:59:36,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [574542948] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 06:59:36,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 06:59:36,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 06:59:36,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682205660] [2024-11-19 06:59:36,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 06:59:36,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 06:59:36,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 06:59:36,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 06:59:36,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-19 06:59:36,002 INFO L87 Difference]: Start difference. First operand 1406 states and 1985 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 6 states have internal predecessors, (40), 4 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 4 states have call predecessors, (7), 4 states have call successors, (7)