./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_clean_up_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_clean_up_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 5ba879a31f48d1f1f7d1dc7f928910bfb7ed0629fadb04ed483f94e60bfd5ef0 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 10:41:51,534 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 10:41:51,605 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-10 10:41:51,609 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 10:41:51,610 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 10:41:51,641 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 10:41:51,642 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 10:41:51,642 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 10:41:51,643 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 10:41:51,643 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 10:41:51,643 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 10:41:51,644 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 10:41:51,644 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 10:41:51,645 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 10:41:51,647 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 10:41:51,647 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 10:41:51,648 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 10:41:51,650 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 10:41:51,651 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 10:41:51,651 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 10:41:51,651 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 10:41:51,652 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 10:41:51,652 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 10:41:51,656 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 10:41:51,656 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 10:41:51,657 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 10:41:51,657 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 10:41:51,657 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 10:41:51,657 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 10:41:51,658 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:41:51,658 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 10:41:51,658 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 10:41:51,658 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 10:41:51,659 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 10:41:51,659 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 10:41:51,659 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 10:41:51,660 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 10:41:51,660 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 10:41:51,661 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 10:41:51,661 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5ba879a31f48d1f1f7d1dc7f928910bfb7ed0629fadb04ed483f94e60bfd5ef0 [2024-11-10 10:41:52,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 10:41:52,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 10:41:52,033 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 10:41:52,035 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 10:41:52,035 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 10:41:52,037 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_clean_up_harness.i [2024-11-10 10:41:53,603 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 10:41:54,116 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 10:41:54,117 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_clean_up_harness.i [2024-11-10 10:41:54,166 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/217837ae3/5c77e6f369fb4f69bee5ddf192072397/FLAGec7a6a74f [2024-11-10 10:41:54,189 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/217837ae3/5c77e6f369fb4f69bee5ddf192072397 [2024-11-10 10:41:54,193 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 10:41:54,197 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 10:41:54,200 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 10:41:54,200 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 10:41:54,206 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 10:41:54,207 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:41:54" (1/1) ... [2024-11-10 10:41:54,207 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e865aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:54, skipping insertion in model container [2024-11-10 10:41:54,207 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 10:41:54" (1/1) ... [2024-11-10 10:41:54,321 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 10:41:54,655 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_clean_up_harness.i[4497,4510] [2024-11-10 10:41:54,665 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_clean_up_harness.i[4557,4570] [2024-11-10 10:41:55,738 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:55,739 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:55,740 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:55,741 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:55,742 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:55,759 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:55,760 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:55,761 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:55,763 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:55,765 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:55,769 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:55,770 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:55,770 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:56,392 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:56,399 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:56,458 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:41:56,504 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 10:41:56,518 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_clean_up_harness.i[4497,4510] [2024-11-10 10:41:56,519 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_clean_up_harness.i[4557,4570] [2024-11-10 10:41:56,579 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:56,579 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:56,580 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:56,584 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:56,585 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:56,593 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:56,594 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:56,595 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:56,595 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:56,596 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:56,596 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:56,597 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:56,597 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:56,669 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:56,679 WARN L1684 CHandler]: Possible shadowing of function index [2024-11-10 10:41:56,693 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7529-7540] [2024-11-10 10:41:56,715 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 10:41:57,000 INFO L204 MainTranslator]: Completed translation [2024-11-10 10:41:57,001 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:57 WrapperNode [2024-11-10 10:41:57,001 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 10:41:57,002 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 10:41:57,002 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 10:41:57,003 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 10:41:57,008 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:57" (1/1) ... [2024-11-10 10:41:57,098 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:57" (1/1) ... [2024-11-10 10:41:57,174 INFO L138 Inliner]: procedures = 679, calls = 1548, calls flagged for inlining = 48, calls inlined = 7, statements flattened = 575 [2024-11-10 10:41:57,179 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 10:41:57,180 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 10:41:57,180 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 10:41:57,180 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 10:41:57,196 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:57" (1/1) ... [2024-11-10 10:41:57,196 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:57" (1/1) ... [2024-11-10 10:41:57,210 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:57" (1/1) ... [2024-11-10 10:41:57,287 INFO L175 MemorySlicer]: Split 277 memory accesses to 5 slices as follows [2, 238, 3, 28, 6]. 86 percent of accesses are in the largest equivalence class. The 19 initializations are split as follows [2, 6, 1, 5, 5]. The 237 writes are split as follows [0, 232, 1, 4, 0]. [2024-11-10 10:41:57,287 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:57" (1/1) ... [2024-11-10 10:41:57,288 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:57" (1/1) ... [2024-11-10 10:41:57,318 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:57" (1/1) ... [2024-11-10 10:41:57,320 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:57" (1/1) ... [2024-11-10 10:41:57,335 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:57" (1/1) ... [2024-11-10 10:41:57,343 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:57" (1/1) ... [2024-11-10 10:41:57,386 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 10:41:57,391 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 10:41:57,391 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 10:41:57,391 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 10:41:57,392 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:57" (1/1) ... [2024-11-10 10:41:57,398 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 10:41:57,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:41:57,471 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) [2024-11-10 10:41:57,480 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 [2024-11-10 10:41:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2024-11-10 10:41:57,594 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2024-11-10 10:41:57,594 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 10:41:57,595 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-11-10 10:41:57,595 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-11-10 10:41:57,595 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-11-10 10:41:57,595 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-11-10 10:41:57,595 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-11-10 10:41:57,595 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-11-10 10:41:57,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2024-11-10 10:41:57,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2024-11-10 10:41:57,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2024-11-10 10:41:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2024-11-10 10:41:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2024-11-10 10:41:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 10:41:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 10:41:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 10:41:57,597 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-10 10:41:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-10 10:41:57,598 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-11-10 10:41:57,598 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-11-10 10:41:57,602 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-10 10:41:57,602 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-10 10:41:57,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-10 10:41:57,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 10:41:57,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-10 10:41:57,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-10 10:41:57,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-10 10:41:57,603 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-10 10:41:57,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-11-10 10:41:57,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 10:41:57,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 10:41:57,604 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-11-10 10:41:57,605 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-11-10 10:41:57,605 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-11-10 10:41:57,606 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-11-10 10:41:57,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2024-11-10 10:41:57,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2024-11-10 10:41:57,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2024-11-10 10:41:57,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2024-11-10 10:41:57,607 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2024-11-10 10:41:57,607 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2024-11-10 10:41:57,607 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2024-11-10 10:41:57,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#0 [2024-11-10 10:41:57,607 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#1 [2024-11-10 10:41:57,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#2 [2024-11-10 10:41:57,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#3 [2024-11-10 10:41:57,608 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset#4 [2024-11-10 10:41:57,608 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#0 [2024-11-10 10:41:57,608 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#1 [2024-11-10 10:41:57,608 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#2 [2024-11-10 10:41:57,609 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#3 [2024-11-10 10:41:57,609 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset#4 [2024-11-10 10:41:57,609 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 10:41:57,609 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 10:41:57,610 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 10:41:57,610 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-10 10:41:57,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-10 10:41:57,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-10 10:41:57,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-10 10:41:57,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-11-10 10:41:57,611 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-10 10:41:57,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-10 10:41:57,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-10 10:41:57,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-10 10:41:57,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-11-10 10:41:57,613 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-11-10 10:41:57,613 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-11-10 10:41:57,613 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-11-10 10:41:57,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-11-10 10:41:57,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 10:41:57,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 10:41:57,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 10:41:57,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-10 10:41:57,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-10 10:41:57,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 10:41:57,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 10:41:57,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 10:41:57,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-10 10:41:57,614 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-10 10:41:57,968 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 10:41:57,972 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 10:41:58,027 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2782: havoc #t~malloc77.base, #t~malloc77.offset; [2024-11-10 10:41:58,066 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2588: havoc #t~ret57#1; [2024-11-10 10:41:58,198 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L3268: call ULTIMATE.dealloc(~#required_size~0.base, ~#required_size~0.offset);havoc ~#required_size~0.base, ~#required_size~0.offset; [2024-11-10 10:41:58,203 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L261: havoc #t~nondet4; [2024-11-10 10:42:03,974 INFO L? ?]: Removed 97 outVars from TransFormulas that were not future-live. [2024-11-10 10:42:03,975 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 10:42:03,989 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 10:42:03,990 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 10:42:03,991 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:42:03 BoogieIcfgContainer [2024-11-10 10:42:03,991 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 10:42:03,994 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 10:42:03,995 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 10:42:03,999 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 10:42:03,999 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 10:41:54" (1/3) ... [2024-11-10 10:42:04,001 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e06404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:42:03, skipping insertion in model container [2024-11-10 10:42:04,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 10:41:57" (2/3) ... [2024-11-10 10:42:04,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@20e06404 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 10:42:04, skipping insertion in model container [2024-11-10 10:42:04,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 10:42:03" (3/3) ... [2024-11-10 10:42:04,003 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_clean_up_harness.i [2024-11-10 10:42:04,021 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 10:42:04,021 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 10:42:04,081 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 10:42:04,088 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;@7ee6da36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 10:42:04,088 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 10:42:04,092 INFO L276 IsEmpty]: Start isEmpty. Operand has 116 states, 79 states have (on average 1.2658227848101267) internal successors, (100), 80 states have internal predecessors, (100), 22 states have call successors, (22), 13 states have call predecessors, (22), 13 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-10 10:42:04,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-10 10:42:04,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:42:04,103 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1] [2024-11-10 10:42:04,104 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:42:04,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:42:04,110 INFO L85 PathProgramCache]: Analyzing trace with hash -863985939, now seen corresponding path program 1 times [2024-11-10 10:42:04,120 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:42:04,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1701471943] [2024-11-10 10:42:04,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:42:04,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:42:09,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:10,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:42:10,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:10,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 10:42:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:10,188 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-10 10:42:10,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:10,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-10 10:42:10,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:10,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-10 10:42:10,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:10,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-10 10:42:10,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:10,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-10 10:42:10,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:10,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-11-10 10:42:10,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:10,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 10:42:10,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:10,500 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2024-11-10 10:42:10,501 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:42:10,501 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1701471943] [2024-11-10 10:42:10,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1701471943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:42:10,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:42:10,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-10 10:42:10,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818817236] [2024-11-10 10:42:10,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:42:10,510 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 10:42:10,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:42:10,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 10:42:10,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 10:42:10,542 INFO L87 Difference]: Start difference. First operand has 116 states, 79 states have (on average 1.2658227848101267) internal successors, (100), 80 states have internal predecessors, (100), 22 states have call successors, (22), 13 states have call predecessors, (22), 13 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-10 10:42:14,654 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 10:42:16,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 10:42:16,559 INFO L93 Difference]: Finished difference Result 228 states and 296 transitions. [2024-11-10 10:42:16,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 10:42:16,562 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 65 [2024-11-10 10:42:16,562 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 10:42:16,569 INFO L225 Difference]: With dead ends: 228 [2024-11-10 10:42:16,569 INFO L226 Difference]: Without dead ends: 112 [2024-11-10 10:42:16,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 10:42:16,574 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 39 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2024-11-10 10:42:16,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 133 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 82 Invalid, 1 Unknown, 0 Unchecked, 5.9s Time] [2024-11-10 10:42:16,589 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2024-11-10 10:42:16,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 108. [2024-11-10 10:42:16,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 73 states have (on average 1.2054794520547945) internal successors, (88), 73 states have internal predecessors, (88), 22 states have call successors, (22), 13 states have call predecessors, (22), 12 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-11-10 10:42:16,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 131 transitions. [2024-11-10 10:42:16,618 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 131 transitions. Word has length 65 [2024-11-10 10:42:16,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 10:42:16,619 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 131 transitions. [2024-11-10 10:42:16,619 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 2 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2024-11-10 10:42:16,619 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 131 transitions. [2024-11-10 10:42:16,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-10 10:42:16,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:42:16,623 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:42:16,624 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 10:42:16,624 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:42:16,625 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:42:16,625 INFO L85 PathProgramCache]: Analyzing trace with hash 1312326963, now seen corresponding path program 1 times [2024-11-10 10:42:16,625 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:42:16,625 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646385766] [2024-11-10 10:42:16,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:42:16,626 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:42:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:22,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:42:22,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:23,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 10:42:23,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:23,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-10 10:42:23,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:23,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-10 10:42:23,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:23,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-10 10:42:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:23,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-10 10:42:23,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:23,852 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-10 10:42:23,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:23,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 10:42:23,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:24,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 10:42:24,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:24,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-10 10:42:24,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:24,215 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-10 10:42:24,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:42:24,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646385766] [2024-11-10 10:42:24,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646385766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:42:24,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:42:24,217 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-10 10:42:24,217 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1817080433] [2024-11-10 10:42:24,217 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:42:24,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-10 10:42:24,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:42:24,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-10 10:42:24,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-10 10:42:24,220 INFO L87 Difference]: Start difference. First operand 108 states and 131 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-10 10:42:28,300 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 10:42:36,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 10:42:36,003 INFO L93 Difference]: Finished difference Result 189 states and 229 transitions. [2024-11-10 10:42:36,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-10 10:42:36,003 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 74 [2024-11-10 10:42:36,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 10:42:36,006 INFO L225 Difference]: With dead ends: 189 [2024-11-10 10:42:36,006 INFO L226 Difference]: Without dead ends: 115 [2024-11-10 10:42:36,007 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2024-11-10 10:42:36,009 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 130 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 54 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 143 SdHoareTripleChecker+Valid, 204 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.2s IncrementalHoareTripleChecker+Time [2024-11-10 10:42:36,010 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [143 Valid, 204 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 389 Invalid, 1 Unknown, 0 Unchecked, 10.2s Time] [2024-11-10 10:42:36,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-10 10:42:36,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 110. [2024-11-10 10:42:36,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 74 states have (on average 1.2027027027027026) internal successors, (89), 75 states have internal predecessors, (89), 22 states have call successors, (22), 13 states have call predecessors, (22), 13 states have return successors, (22), 21 states have call predecessors, (22), 21 states have call successors, (22) [2024-11-10 10:42:36,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 133 transitions. [2024-11-10 10:42:36,026 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 133 transitions. Word has length 74 [2024-11-10 10:42:36,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 10:42:36,027 INFO L471 AbstractCegarLoop]: Abstraction has 110 states and 133 transitions. [2024-11-10 10:42:36,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (11), 4 states have call predecessors, (11), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-10 10:42:36,028 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 133 transitions. [2024-11-10 10:42:36,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-10 10:42:36,030 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:42:36,031 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:42:36,031 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 10:42:36,031 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:42:36,032 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:42:36,032 INFO L85 PathProgramCache]: Analyzing trace with hash -441670284, now seen corresponding path program 1 times [2024-11-10 10:42:36,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:42:36,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1789159799] [2024-11-10 10:42:36,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:42:36,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:42:40,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:43,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:42:43,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:43,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 10:42:43,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:43,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-10 10:42:43,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:43,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-10 10:42:43,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:43,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-10 10:42:43,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:44,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:42:44,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:44,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:42:44,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:44,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 10:42:44,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:44,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-10 10:42:44,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:44,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 10:42:44,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:44,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-10 10:42:44,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:44,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 10:42:44,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:42:44,995 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-10 10:42:44,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:42:44,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1789159799] [2024-11-10 10:42:44,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1789159799] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 10:42:44,996 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 10:42:44,996 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-10 10:42:44,996 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092904723] [2024-11-10 10:42:44,996 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 10:42:44,997 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-10 10:42:44,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 10:42:44,998 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-10 10:42:44,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-10 10:42:44,999 INFO L87 Difference]: Start difference. First operand 110 states and 133 transitions. Second operand has 9 states, 8 states have (on average 6.5) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-10 10:42:49,068 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 10:42:53,496 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2024-11-10 10:43:04,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 10:43:04,457 INFO L93 Difference]: Finished difference Result 122 states and 146 transitions. [2024-11-10 10:43:04,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-10 10:43:04,458 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) Word has length 89 [2024-11-10 10:43:04,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 10:43:04,460 INFO L225 Difference]: With dead ends: 122 [2024-11-10 10:43:04,460 INFO L226 Difference]: Without dead ends: 117 [2024-11-10 10:43:04,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-10 10:43:04,462 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 108 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 528 mSolverCounterSat, 54 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 16.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 584 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 528 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 17.1s IncrementalHoareTripleChecker+Time [2024-11-10 10:43:04,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 320 Invalid, 584 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 528 Invalid, 2 Unknown, 0 Unchecked, 17.1s Time] [2024-11-10 10:43:04,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-10 10:43:04,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 112. [2024-11-10 10:43:04,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 75 states have (on average 1.2) internal successors, (90), 77 states have internal predecessors, (90), 22 states have call successors, (22), 13 states have call predecessors, (22), 14 states have return successors, (23), 21 states have call predecessors, (23), 21 states have call successors, (23) [2024-11-10 10:43:04,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 135 transitions. [2024-11-10 10:43:04,489 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 135 transitions. Word has length 89 [2024-11-10 10:43:04,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 10:43:04,490 INFO L471 AbstractCegarLoop]: Abstraction has 112 states and 135 transitions. [2024-11-10 10:43:04,490 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.5) internal successors, (52), 4 states have internal predecessors, (52), 2 states have call successors, (13), 5 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 1 states have call successors, (12) [2024-11-10 10:43:04,490 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 135 transitions. [2024-11-10 10:43:04,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-10 10:43:04,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 10:43:04,492 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 10:43:04,493 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 10:43:04,493 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 10:43:04,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 10:43:04,493 INFO L85 PathProgramCache]: Analyzing trace with hash 523990452, now seen corresponding path program 1 times [2024-11-10 10:43:04,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 10:43:04,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1969870665] [2024-11-10 10:43:04,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:43:04,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 10:43:09,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:10,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:43:10,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:10,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 10:43:10,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:10,632 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-11-10 10:43:10,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:10,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-10 10:43:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:10,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-10 10:43:10,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:11,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-10 10:43:11,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:11,258 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-11-10 10:43:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:11,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-10 10:43:11,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:11,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-10 10:43:11,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:11,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 10:43:11,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:12,205 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2024-11-10 10:43:12,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:12,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-10 10:43:12,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:12,239 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-10 10:43:12,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 10:43:12,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1969870665] [2024-11-10 10:43:12,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1969870665] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-10 10:43:12,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [325220065] [2024-11-10 10:43:12,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 10:43:12,244 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-10 10:43:12,244 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 10:43:12,248 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) [2024-11-10 10:43:12,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-10 10:43:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 10:43:17,525 INFO L255 TraceCheckSpWp]: Trace formula consists of 4118 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-10 10:43:17,539 INFO L278 TraceCheckSpWp]: Computing forward predicates...