./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 14:02:47,091 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 14:02:47,144 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-22 14:02:47,149 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 14:02:47,152 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 14:02:47,181 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 14:02:47,182 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 14:02:47,182 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 14:02:47,183 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 14:02:47,184 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 14:02:47,185 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 14:02:47,185 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 14:02:47,185 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 14:02:47,186 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 14:02:47,188 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 14:02:47,188 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 14:02:47,189 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 14:02:47,189 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 14:02:47,189 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 14:02:47,189 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 14:02:47,189 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 14:02:47,190 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 14:02:47,190 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 14:02:47,190 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 14:02:47,190 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 14:02:47,190 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 14:02:47,191 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 14:02:47,191 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 14:02:47,191 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 14:02:47,191 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 14:02:47,191 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 14:02:47,191 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 14:02:47,192 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 14:02:47,192 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 14:02:47,192 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 14:02:47,192 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 14:02:47,192 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 14:02:47,192 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 14:02:47,192 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 14:02:47,193 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 [2024-11-22 14:02:47,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 14:02:47,411 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 14:02:47,413 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 14:02:47,415 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 14:02:47,415 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 14:02:47,416 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2024-11-22 14:02:48,690 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 14:02:49,015 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 14:02:49,016 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2024-11-22 14:02:49,052 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af0ca9ac8/d50a758d48b945d2827e14dea9112289/FLAG1e44ab378 [2024-11-22 14:02:49,066 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/af0ca9ac8/d50a758d48b945d2827e14dea9112289 [2024-11-22 14:02:49,068 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 14:02:49,070 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 14:02:49,071 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 14:02:49,071 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 14:02:49,075 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 14:02:49,076 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:02:49" (1/1) ... [2024-11-22 14:02:49,078 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b56a1d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:49, skipping insertion in model container [2024-11-22 14:02:49,078 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 02:02:49" (1/1) ... [2024-11-22 14:02:49,186 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 14:02:49,442 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2024-11-22 14:02:49,449 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2024-11-22 14:02:49,966 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:49,967 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:49,967 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:49,968 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:49,969 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:49,984 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:49,987 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:49,988 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:49,989 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:49,990 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:49,991 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:49,991 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:49,991 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:50,314 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:50,317 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:50,324 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:50,333 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:50,385 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 14:02:50,416 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 14:02:50,429 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2024-11-22 14:02:50,430 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2024-11-22 14:02:50,472 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:50,473 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:50,473 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:50,473 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:50,474 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:50,478 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:50,479 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:50,479 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:50,480 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:50,480 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:50,481 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:50,481 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:50,481 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:50,607 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:50,607 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:50,608 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:50,615 WARN L1674 CHandler]: Possible shadowing of function index [2024-11-22 14:02:50,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7775-7786] [2024-11-22 14:02:50,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 14:02:50,810 INFO L204 MainTranslator]: Completed translation [2024-11-22 14:02:50,810 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:50 WrapperNode [2024-11-22 14:02:50,810 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 14:02:50,811 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 14:02:50,811 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 14:02:50,811 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 14:02:50,817 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:50" (1/1) ... [2024-11-22 14:02:50,891 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:50" (1/1) ... [2024-11-22 14:02:50,965 INFO L138 Inliner]: procedures = 680, calls = 1677, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 654 [2024-11-22 14:02:50,966 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 14:02:50,967 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 14:02:50,967 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 14:02:50,967 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 14:02:50,976 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:50" (1/1) ... [2024-11-22 14:02:50,977 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:50" (1/1) ... [2024-11-22 14:02:50,982 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:50" (1/1) ... [2024-11-22 14:02:51,033 INFO L175 MemorySlicer]: Split 302 memory accesses to 7 slices as follows [238, 2, 6, 5, 3, 39, 9]. 79 percent of accesses are in the largest equivalence class. The 26 initializations are split as follows [6, 2, 5, 2, 1, 5, 5]. The 238 writes are split as follows [232, 0, 1, 1, 1, 3, 0]. [2024-11-22 14:02:51,033 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:50" (1/1) ... [2024-11-22 14:02:51,033 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:50" (1/1) ... [2024-11-22 14:02:51,065 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:50" (1/1) ... [2024-11-22 14:02:51,071 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:50" (1/1) ... [2024-11-22 14:02:51,081 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:50" (1/1) ... [2024-11-22 14:02:51,094 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:50" (1/1) ... [2024-11-22 14:02:51,110 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 14:02:51,111 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 14:02:51,111 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 14:02:51,111 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 14:02:51,112 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:50" (1/1) ... [2024-11-22 14:02:51,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 14:02:51,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:02:51,151 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) [2024-11-22 14:02:51,153 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 [2024-11-22 14:02:51,193 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-22 14:02:51,193 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-22 14:02:51,193 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-22 14:02:51,193 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-22 14:02:51,194 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-22 14:02:51,194 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-22 14:02:51,194 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-22 14:02:51,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-22 14:02:51,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-22 14:02:51,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-22 14:02:51,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-22 14:02:51,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-22 14:02:51,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2024-11-22 14:02:51,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2024-11-22 14:02:51,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-22 14:02:51,195 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-22 14:02:51,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-22 14:02:51,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-22 14:02:51,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-22 14:02:51,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-22 14:02:51,197 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-22 14:02:51,197 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-22 14:02:51,197 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-22 14:02:51,197 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-22 14:02:51,197 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-22 14:02:51,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-22 14:02:51,197 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 14:02:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-22 14:02:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-22 14:02:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-22 14:02:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-22 14:02:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-22 14:02:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-11-22 14:02:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2024-11-22 14:02:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2024-11-22 14:02:51,198 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2024-11-22 14:02:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 14:02:51,198 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 14:02:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-22 14:02:51,198 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-22 14:02:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-22 14:02:51,198 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-22 14:02:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-22 14:02:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-22 14:02:51,198 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-22 14:02:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-22 14:02:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-22 14:02:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2024-11-22 14:02:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2024-11-22 14:02:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2024-11-22 14:02:51,199 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2024-11-22 14:02:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 14:02:51,199 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 14:02:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2024-11-22 14:02:51,199 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2024-11-22 14:02:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-22 14:02:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-22 14:02:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-22 14:02:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-22 14:02:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-22 14:02:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-22 14:02:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-11-22 14:02:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2024-11-22 14:02:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-22 14:02:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-22 14:02:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-22 14:02:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-22 14:02:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-22 14:02:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-11-22 14:02:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2024-11-22 14:02:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2024-11-22 14:02:51,200 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2024-11-22 14:02:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-22 14:02:51,202 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-22 14:02:51,202 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-22 14:02:51,202 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-22 14:02:51,202 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-22 14:02:51,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-22 14:02:51,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-22 14:02:51,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-22 14:02:51,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-22 14:02:51,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-22 14:02:51,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-22 14:02:51,203 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-11-22 14:02:51,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-11-22 14:02:51,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 14:02:51,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-22 14:02:51,203 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-22 14:02:51,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-22 14:02:51,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-22 14:02:51,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-22 14:02:51,204 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-22 14:02:51,464 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 14:02:51,466 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 14:02:57,487 INFO L? ?]: Removed 108 outVars from TransFormulas that were not future-live. [2024-11-22 14:02:57,488 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 14:02:57,504 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 14:02:57,504 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 14:02:57,505 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:02:57 BoogieIcfgContainer [2024-11-22 14:02:57,505 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 14:02:57,506 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 14:02:57,507 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 14:02:57,509 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 14:02:57,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 02:02:49" (1/3) ... [2024-11-22 14:02:57,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2766a378 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:02:57, skipping insertion in model container [2024-11-22 14:02:57,510 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 02:02:50" (2/3) ... [2024-11-22 14:02:57,510 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2766a378 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 02:02:57, skipping insertion in model container [2024-11-22 14:02:57,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 02:02:57" (3/3) ... [2024-11-22 14:02:57,512 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness.i [2024-11-22 14:02:57,525 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 14:02:57,525 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 14:02:57,593 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 14:02:57,603 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@1750f2b3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 14:02:57,603 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 14:02:57,608 INFO L276 IsEmpty]: Start isEmpty. Operand has 180 states, 102 states have (on average 1.1666666666666667) internal successors, (119), 103 states have internal predecessors, (119), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2024-11-22 14:02:57,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 14:02:57,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:02:57,619 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:02:57,621 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:02:57,626 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:02:57,627 INFO L85 PathProgramCache]: Analyzing trace with hash -1076027669, now seen corresponding path program 1 times [2024-11-22 14:02:57,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:02:57,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [748393467] [2024-11-22 14:02:57,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:02:57,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:03:02,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:03:02,681 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-22 14:03:02,682 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:03:02,682 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [748393467] [2024-11-22 14:03:02,682 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [748393467] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:03:02,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328055013] [2024-11-22 14:03:02,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:03:02,683 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:03:02,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:03:02,685 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) [2024-11-22 14:03:02,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 14:03:07,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:03:07,758 INFO L255 TraceCheckSpWp]: Trace formula consists of 4013 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 14:03:07,770 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 14:03:07,790 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-22 14:03:07,790 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 14:03:07,790 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [328055013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:03:07,790 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 14:03:07,791 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 14:03:07,797 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286016545] [2024-11-22 14:03:07,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:03:07,801 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 14:03:07,801 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:03:07,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 14:03:07,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 14:03:07,826 INFO L87 Difference]: Start difference. First operand has 180 states, 102 states have (on average 1.1666666666666667) internal successors, (119), 103 states have internal predecessors, (119), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-22 14:03:07,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:03:07,865 INFO L93 Difference]: Finished difference Result 353 states and 517 transitions. [2024-11-22 14:03:07,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 14:03:07,867 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 69 [2024-11-22 14:03:07,868 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:03:07,875 INFO L225 Difference]: With dead ends: 353 [2024-11-22 14:03:07,876 INFO L226 Difference]: Without dead ends: 175 [2024-11-22 14:03:07,880 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 14:03:07,884 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 14:03:07,885 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 238 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 14:03:07,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-22 14:03:07,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2024-11-22 14:03:07,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 98 states have (on average 1.1428571428571428) internal successors, (112), 99 states have internal predecessors, (112), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2024-11-22 14:03:07,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 233 transitions. [2024-11-22 14:03:07,937 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 233 transitions. Word has length 69 [2024-11-22 14:03:07,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:03:07,939 INFO L471 AbstractCegarLoop]: Abstraction has 175 states and 233 transitions. [2024-11-22 14:03:07,940 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2024-11-22 14:03:07,940 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 233 transitions. [2024-11-22 14:03:07,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-22 14:03:07,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:03:07,943 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:03:07,960 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 14:03:08,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-22 14:03:08,144 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:03:08,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:03:08,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1936245199, now seen corresponding path program 1 times [2024-11-22 14:03:08,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:03:08,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [526768602] [2024-11-22 14:03:08,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:03:08,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:03:12,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:03:13,326 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-22 14:03:13,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:03:13,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [526768602] [2024-11-22 14:03:13,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [526768602] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:03:13,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379799433] [2024-11-22 14:03:13,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:03:13,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:03:13,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:03:13,330 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) [2024-11-22 14:03:13,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 14:03:18,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:03:18,078 INFO L255 TraceCheckSpWp]: Trace formula consists of 4013 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-22 14:03:18,084 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 14:03:18,771 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-22 14:03:18,772 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 14:03:18,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379799433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:03:18,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 14:03:18,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-22 14:03:18,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1010320428] [2024-11-22 14:03:18,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:03:18,774 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-22 14:03:18,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:03:18,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-22 14:03:18,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2024-11-22 14:03:18,775 INFO L87 Difference]: Start difference. First operand 175 states and 233 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-22 14:03:21,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:03:21,320 INFO L93 Difference]: Finished difference Result 315 states and 432 transitions. [2024-11-22 14:03:21,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-22 14:03:21,320 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 69 [2024-11-22 14:03:21,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:03:21,329 INFO L225 Difference]: With dead ends: 315 [2024-11-22 14:03:21,330 INFO L226 Difference]: Without dead ends: 177 [2024-11-22 14:03:21,335 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-22 14:03:21,336 INFO L432 NwaCegarLoop]: 179 mSDtfsCounter, 238 mSDsluCounter, 487 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 666 SdHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-22 14:03:21,336 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 666 Invalid, 261 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-22 14:03:21,337 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-22 14:03:21,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2024-11-22 14:03:21,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 99 states have (on average 1.1414141414141414) internal successors, (113), 101 states have internal predecessors, (113), 61 states have call successors, (61), 15 states have call predecessors, (61), 16 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2024-11-22 14:03:21,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 242 transitions. [2024-11-22 14:03:21,376 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 242 transitions. Word has length 69 [2024-11-22 14:03:21,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:03:21,377 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 242 transitions. [2024-11-22 14:03:21,378 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-22 14:03:21,378 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 242 transitions. [2024-11-22 14:03:21,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-22 14:03:21,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:03:21,383 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:03:21,403 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 14:03:21,584 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,SelfDestructingSolverStorable1 [2024-11-22 14:03:21,585 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:03:21,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:03:21,586 INFO L85 PathProgramCache]: Analyzing trace with hash 929841439, now seen corresponding path program 1 times [2024-11-22 14:03:21,586 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:03:21,586 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120065654] [2024-11-22 14:03:21,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:03:21,586 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:03:25,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:03:26,749 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-22 14:03:26,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 14:03:26,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120065654] [2024-11-22 14:03:26,750 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120065654] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 14:03:26,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [148136747] [2024-11-22 14:03:26,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:03:26,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:03:26,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:03:26,753 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 14:03:26,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 14:03:31,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 14:03:31,474 INFO L255 TraceCheckSpWp]: Trace formula consists of 4140 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-22 14:03:31,479 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 14:03:32,791 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-22 14:03:32,791 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 14:03:32,791 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [148136747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 14:03:32,792 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 14:03:32,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-22 14:03:32,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403237504] [2024-11-22 14:03:32,792 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 14:03:32,792 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-22 14:03:32,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 14:03:32,793 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-22 14:03:32,793 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-22 14:03:32,793 INFO L87 Difference]: Start difference. First operand 177 states and 242 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-22 14:03:36,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 14:03:36,933 INFO L93 Difference]: Finished difference Result 326 states and 455 transitions. [2024-11-22 14:03:36,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 14:03:36,934 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 84 [2024-11-22 14:03:36,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 14:03:36,941 INFO L225 Difference]: With dead ends: 326 [2024-11-22 14:03:36,941 INFO L226 Difference]: Without dead ends: 189 [2024-11-22 14:03:36,942 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=54, Invalid=252, Unknown=0, NotChecked=0, Total=306 [2024-11-22 14:03:36,943 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 258 mSDsluCounter, 820 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 993 SdHoareTripleChecker+Invalid, 421 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-22 14:03:36,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 993 Invalid, 421 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-22 14:03:36,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-22 14:03:36,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2024-11-22 14:03:36,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 105 states have (on average 1.1428571428571428) internal successors, (120), 107 states have internal predecessors, (120), 66 states have call successors, (66), 16 states have call predecessors, (66), 17 states have return successors, (73), 65 states have call predecessors, (73), 65 states have call successors, (73) [2024-11-22 14:03:36,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 259 transitions. [2024-11-22 14:03:36,980 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 259 transitions. Word has length 84 [2024-11-22 14:03:36,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 14:03:36,981 INFO L471 AbstractCegarLoop]: Abstraction has 189 states and 259 transitions. [2024-11-22 14:03:36,981 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2024-11-22 14:03:36,981 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 259 transitions. [2024-11-22 14:03:36,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-22 14:03:36,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 14:03:36,988 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 14:03:37,013 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-22 14:03:37,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:03:37,193 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 14:03:37,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 14:03:37,193 INFO L85 PathProgramCache]: Analyzing trace with hash -2047267727, now seen corresponding path program 1 times [2024-11-22 14:03:37,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 14:03:37,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326009020] [2024-11-22 14:03:37,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:03:37,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 14:03:44,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 14:03:44,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1569194564] [2024-11-22 14:03:44,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 14:03:44,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 14:03:44,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 14:03:44,719 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 14:03:44,720 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process