./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 d58b6cbe3dbcae2c6bf4b35286cc82fa39ed49d435b7e41930b97647d699f843 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 14:38:39,518 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 14:38:39,581 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-10-11 14:38:39,585 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 14:38:39,586 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 14:38:39,605 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 14:38:39,605 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 14:38:39,606 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 14:38:39,606 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 14:38:39,607 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 14:38:39,607 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 14:38:39,608 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 14:38:39,608 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 14:38:39,609 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 14:38:39,609 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 14:38:39,609 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 14:38:39,610 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 14:38:39,613 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 14:38:39,613 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 14:38:39,614 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 14:38:39,614 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 14:38:39,618 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 14:38:39,619 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 14:38:39,619 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 14:38:39,619 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 14:38:39,620 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 14:38:39,620 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 14:38:39,620 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 14:38:39,620 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 14:38:39,620 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:38:39,621 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 14:38:39,621 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 14:38:39,621 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 14:38:39,621 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 14:38:39,622 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 14:38:39,622 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 14:38:39,624 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 14:38:39,624 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 14:38:39,625 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 14:38:39,625 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d58b6cbe3dbcae2c6bf4b35286cc82fa39ed49d435b7e41930b97647d699f843 [2024-10-11 14:38:39,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 14:38:39,935 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 14:38:39,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 14:38:39,940 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 14:38:39,941 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 14:38:39,942 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i [2024-10-11 14:38:41,346 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 14:38:41,780 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 14:38:41,782 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_capacity_harness.i [2024-10-11 14:38:41,821 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/f0396614e/fd65f7ccc23645cbba3e75e2be944985/FLAG30770bc91 [2024-10-11 14:38:41,940 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/f0396614e/fd65f7ccc23645cbba3e75e2be944985 [2024-10-11 14:38:41,942 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 14:38:41,944 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 14:38:41,945 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 14:38:41,945 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 14:38:41,951 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 14:38:41,952 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:38:41" (1/1) ... [2024-10-11 14:38:41,953 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e26757e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:38:41, skipping insertion in model container [2024-10-11 14:38:41,953 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:38:41" (1/1) ... [2024-10-11 14:38:42,050 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 14:38:42,350 WARN L248 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_capacity_harness.i[4497,4510] [2024-10-11 14:38:42,359 WARN L248 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_capacity_harness.i[4557,4570] [2024-10-11 14:38:43,418 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:43,419 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:43,419 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:43,420 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:43,422 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:43,438 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:43,440 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:43,444 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:43,445 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:43,446 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:43,448 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:43,449 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:43,449 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:43,934 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:43,945 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:43,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:38:44,029 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 14:38:44,043 WARN L248 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_capacity_harness.i[4497,4510] [2024-10-11 14:38:44,044 WARN L248 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_capacity_harness.i[4557,4570] [2024-10-11 14:38:44,089 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:44,089 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:44,090 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:44,090 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:44,091 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:44,096 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:44,097 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:44,098 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:44,098 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:44,099 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:44,099 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:44,100 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:44,100 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:44,161 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:44,170 WARN L1659 CHandler]: Possible shadowing of function index [2024-10-11 14:38:44,176 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7747-7758] [2024-10-11 14:38:44,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 14:38:44,472 INFO L204 MainTranslator]: Completed translation [2024-10-11 14:38:44,472 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:38:44 WrapperNode [2024-10-11 14:38:44,473 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 14:38:44,474 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 14:38:44,474 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 14:38:44,474 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 14:38:44,482 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:38:44" (1/1) ... [2024-10-11 14:38:44,565 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:38:44" (1/1) ... [2024-10-11 14:38:44,651 INFO L138 Inliner]: procedures = 679, calls = 1676, calls flagged for inlining = 53, calls inlined = 9, statements flattened = 615 [2024-10-11 14:38:44,651 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 14:38:44,652 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 14:38:44,655 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 14:38:44,656 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 14:38:44,666 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:38:44" (1/1) ... [2024-10-11 14:38:44,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:38:44" (1/1) ... [2024-10-11 14:38:44,677 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:38:44" (1/1) ... [2024-10-11 14:38:44,760 INFO L175 MemorySlicer]: Split 304 memory accesses to 6 slices as follows [2, 236, 50, 6, 3, 7]. 78 percent of accesses are in the largest equivalence class. The 254 initializations are split as follows [2, 236, 10, 0, 1, 5]. The 6 writes are split as follows [0, 0, 3, 2, 1, 0]. [2024-10-11 14:38:44,761 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:38:44" (1/1) ... [2024-10-11 14:38:44,761 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:38:44" (1/1) ... [2024-10-11 14:38:44,793 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:38:44" (1/1) ... [2024-10-11 14:38:44,800 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:38:44" (1/1) ... [2024-10-11 14:38:44,810 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:38:44" (1/1) ... [2024-10-11 14:38:44,820 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:38:44" (1/1) ... [2024-10-11 14:38:44,834 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 14:38:44,839 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 14:38:44,839 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 14:38:44,839 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 14:38:44,840 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:38:44" (1/1) ... [2024-10-11 14:38:44,846 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 14:38:44,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:38:44,875 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 14:38:44,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 14:38:44,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-11 14:38:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2024-10-11 14:38:44,925 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2024-10-11 14:38:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2024-10-11 14:38:44,925 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2024-10-11 14:38:44,925 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2024-10-11 14:38:44,925 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2024-10-11 14:38:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-10-11 14:38:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-10-11 14:38:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-10-11 14:38:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-10-11 14:38:44,926 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-10-11 14:38:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-10-11 14:38:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2024-10-11 14:38:44,927 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2024-10-11 14:38:44,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-11 14:38:44,928 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-11 14:38:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-11 14:38:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 14:38:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-10-11 14:38:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-10-11 14:38:44,928 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-10-11 14:38:44,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-10-11 14:38:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2024-10-11 14:38:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2024-10-11 14:38:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 14:38:44,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 14:38:44,930 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2024-10-11 14:38:44,930 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2024-10-11 14:38:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure assert_byte_from_buffer_matches [2024-10-11 14:38:44,931 INFO L138 BoogieDeclarations]: Found implementation of procedure assert_byte_from_buffer_matches [2024-10-11 14:38:44,931 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2024-10-11 14:38:44,932 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2024-10-11 14:38:44,932 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 14:38:44,932 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 14:38:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-11 14:38:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-10-11 14:38:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-10-11 14:38:44,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-10-11 14:38:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-10-11 14:38:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2024-10-11 14:38:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2024-10-11 14:38:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-10-11 14:38:44,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-10-11 14:38:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-10-11 14:38:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-10-11 14:38:44,935 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2024-10-11 14:38:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2024-10-11 14:38:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2024-10-11 14:38:44,936 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2024-10-11 14:38:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2024-10-11 14:38:44,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2024-10-11 14:38:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-10-11 14:38:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-10-11 14:38:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-10-11 14:38:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-10-11 14:38:44,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-10-11 14:38:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-10-11 14:38:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2024-10-11 14:38:44,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2024-10-11 14:38:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 14:38:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-10-11 14:38:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-10-11 14:38:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-10-11 14:38:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-10-11 14:38:44,937 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-10-11 14:38:45,202 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 14:38:45,203 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 14:38:45,871 INFO L? ?]: Removed 106 outVars from TransFormulas that were not future-live. [2024-10-11 14:38:45,871 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 14:38:45,969 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 14:38:45,969 INFO L314 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-11 14:38:45,970 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:38:45 BoogieIcfgContainer [2024-10-11 14:38:45,970 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 14:38:45,972 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 14:38:45,973 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 14:38:45,976 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 14:38:45,977 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:38:41" (1/3) ... [2024-10-11 14:38:45,977 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f8935e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:38:45, skipping insertion in model container [2024-10-11 14:38:45,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:38:44" (2/3) ... [2024-10-11 14:38:45,978 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f8935e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:38:45, skipping insertion in model container [2024-10-11 14:38:45,978 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:38:45" (3/3) ... [2024-10-11 14:38:45,979 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_capacity_harness.i [2024-10-11 14:38:45,995 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 14:38:45,995 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 14:38:46,064 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 14:38:46,070 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;@4f36698e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 14:38:46,070 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 14:38:46,077 INFO L276 IsEmpty]: Start isEmpty. Operand has 108 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 64 states have internal predecessors, (78), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) [2024-10-11 14:38:46,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-11 14:38:46,087 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:38:46,087 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-10-11 14:38:46,088 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:38:46,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:38:46,092 INFO L85 PathProgramCache]: Analyzing trace with hash -995450195, now seen corresponding path program 1 times [2024-10-11 14:38:46,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:38:46,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863881926] [2024-10-11 14:38:46,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:38:46,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:38:46,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:46,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:38:46,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:46,693 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 14:38:46,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:46,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 14:38:46,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:46,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:38:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:46,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:38:46,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:46,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 14:38:46,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:46,839 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 14:38:46,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:46,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 14:38:46,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:46,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 14:38:46,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:46,875 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 14:38:46,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:46,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 14:38:46,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:46,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 14:38:46,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:46,918 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-10-11 14:38:46,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:38:46,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863881926] [2024-10-11 14:38:46,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863881926] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:38:46,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 14:38:46,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-11 14:38:46,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825224852] [2024-10-11 14:38:46,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:38:46,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-11 14:38:46,927 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:38:46,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-11 14:38:46,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-11 14:38:46,954 INFO L87 Difference]: Start difference. First operand has 108 states, 63 states have (on average 1.2380952380952381) internal successors, (78), 64 states have internal predecessors, (78), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (31), 31 states have call predecessors, (31), 31 states have call successors, (31) Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-11 14:38:47,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:38:47,700 INFO L93 Difference]: Finished difference Result 215 states and 301 transitions. [2024-10-11 14:38:47,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 14:38:47,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 71 [2024-10-11 14:38:47,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:38:47,711 INFO L225 Difference]: With dead ends: 215 [2024-10-11 14:38:47,711 INFO L226 Difference]: Without dead ends: 110 [2024-10-11 14:38:47,714 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-11 14:38:47,717 INFO L432 NwaCegarLoop]: 90 mSDtfsCounter, 57 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-11 14:38:47,718 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 132 Invalid, 228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-11 14:38:47,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2024-10-11 14:38:47,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 106. [2024-10-11 14:38:47,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 62 states have (on average 1.2096774193548387) internal successors, (75), 63 states have internal predecessors, (75), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-10-11 14:38:47,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 136 transitions. [2024-10-11 14:38:47,807 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 136 transitions. Word has length 71 [2024-10-11 14:38:47,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:38:47,808 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 136 transitions. [2024-10-11 14:38:47,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 2 states have internal predecessors, (25), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2024-10-11 14:38:47,808 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 136 transitions. [2024-10-11 14:38:47,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-10-11 14:38:47,811 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:38:47,811 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-10-11 14:38:47,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 14:38:47,812 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:38:47,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:38:47,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1524703469, now seen corresponding path program 1 times [2024-10-11 14:38:47,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:38:47,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425699331] [2024-10-11 14:38:47,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:38:47,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:38:47,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:48,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:38:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:48,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 14:38:48,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:48,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 14:38:48,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:48,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:38:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:48,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:38:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:48,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 14:38:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:48,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-11 14:38:48,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:48,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-10-11 14:38:48,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:48,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2024-10-11 14:38:48,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:48,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-11 14:38:48,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:48,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-10-11 14:38:48,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:48,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-11 14:38:48,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:48,453 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-10-11 14:38:48,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:38:48,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425699331] [2024-10-11 14:38:48,454 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425699331] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:38:48,454 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786583401] [2024-10-11 14:38:48,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:38:48,454 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:38:48,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:38:48,456 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:38:48,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-11 14:38:48,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:48,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 2026 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-11 14:38:48,951 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:38:49,037 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-10-11 14:38:49,039 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:38:49,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786583401] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:38:49,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:38:49,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 10 [2024-10-11 14:38:49,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923520613] [2024-10-11 14:38:49,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:38:49,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-11 14:38:49,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:38:49,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-11 14:38:49,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-11 14:38:49,044 INFO L87 Difference]: Start difference. First operand 106 states and 136 transitions. Second operand has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-11 14:38:49,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:38:49,355 INFO L93 Difference]: Finished difference Result 182 states and 237 transitions. [2024-10-11 14:38:49,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-11 14:38:49,358 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) Word has length 71 [2024-10-11 14:38:49,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:38:49,360 INFO L225 Difference]: With dead ends: 182 [2024-10-11 14:38:49,362 INFO L226 Difference]: Without dead ends: 108 [2024-10-11 14:38:49,363 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-11 14:38:49,366 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 31 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 398 SdHoareTripleChecker+Invalid, 91 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 14:38:49,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 398 Invalid, 91 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 14:38:49,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states. [2024-10-11 14:38:49,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108. [2024-10-11 14:38:49,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 63 states have (on average 1.2063492063492063) internal successors, (76), 65 states have internal predecessors, (76), 31 states have call successors, (31), 12 states have call predecessors, (31), 13 states have return successors, (32), 30 states have call predecessors, (32), 30 states have call successors, (32) [2024-10-11 14:38:49,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 139 transitions. [2024-10-11 14:38:49,389 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 139 transitions. Word has length 71 [2024-10-11 14:38:49,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:38:49,390 INFO L471 AbstractCegarLoop]: Abstraction has 108 states and 139 transitions. [2024-10-11 14:38:49,390 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.2) internal successors, (31), 5 states have internal predecessors, (31), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 3 states have call successors, (12) [2024-10-11 14:38:49,390 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 139 transitions. [2024-10-11 14:38:49,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-10-11 14:38:49,393 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:38:49,393 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-10-11 14:38:49,414 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-11 14:38:49,597 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:38:49,598 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:38:49,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:38:49,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1451497515, now seen corresponding path program 1 times [2024-10-11 14:38:49,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:38:49,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899489930] [2024-10-11 14:38:49,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:38:49,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:38:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:50,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:38:50,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:50,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-10-11 14:38:50,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:50,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-10-11 14:38:50,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:50,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2024-10-11 14:38:50,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:50,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2024-10-11 14:38:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:50,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-10-11 14:38:50,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:50,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 14:38:50,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:50,284 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-11 14:38:50,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:50,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-10-11 14:38:50,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:50,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-10-11 14:38:50,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:50,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 14:38:50,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:50,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 14:38:50,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:50,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 14:38:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:50,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 14:38:50,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:50,388 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-10-11 14:38:50,388 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:38:50,388 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899489930] [2024-10-11 14:38:50,388 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899489930] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:38:50,389 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748323828] [2024-10-11 14:38:50,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:38:50,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:38:50,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:38:50,391 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:38:50,392 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-11 14:38:50,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:50,841 INFO L255 TraceCheckSpWp]: Trace formula consists of 2161 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-11 14:38:50,849 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:38:50,949 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-10-11 14:38:50,951 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-11 14:38:50,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748323828] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 14:38:50,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:38:50,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 13 [2024-10-11 14:38:50,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819452263] [2024-10-11 14:38:50,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 14:38:50,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-11 14:38:50,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:38:50,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-11 14:38:50,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2024-10-11 14:38:50,955 INFO L87 Difference]: Start difference. First operand 108 states and 139 transitions. Second operand has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-11 14:38:51,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 14:38:51,242 INFO L93 Difference]: Finished difference Result 173 states and 220 transitions. [2024-10-11 14:38:51,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-11 14:38:51,243 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 84 [2024-10-11 14:38:51,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 14:38:51,245 INFO L225 Difference]: With dead ends: 173 [2024-10-11 14:38:51,245 INFO L226 Difference]: Without dead ends: 106 [2024-10-11 14:38:51,246 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2024-10-11 14:38:51,247 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 29 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 508 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-11 14:38:51,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 508 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-11 14:38:51,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-10-11 14:38:51,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 106. [2024-10-11 14:38:51,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 62 states have (on average 1.1935483870967742) internal successors, (74), 63 states have internal predecessors, (74), 31 states have call successors, (31), 12 states have call predecessors, (31), 12 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-10-11 14:38:51,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 135 transitions. [2024-10-11 14:38:51,260 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 135 transitions. Word has length 84 [2024-10-11 14:38:51,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 14:38:51,261 INFO L471 AbstractCegarLoop]: Abstraction has 106 states and 135 transitions. [2024-10-11 14:38:51,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 4 states have call successors, (15), 2 states have call predecessors, (15), 3 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-10-11 14:38:51,261 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 135 transitions. [2024-10-11 14:38:51,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-10-11 14:38:51,262 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 14:38:51,262 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 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] [2024-10-11 14:38:51,283 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-11 14:38:51,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:38:51,467 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 14:38:51,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 14:38:51,467 INFO L85 PathProgramCache]: Analyzing trace with hash -883546017, now seen corresponding path program 1 times [2024-10-11 14:38:51,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 14:38:51,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503066295] [2024-10-11 14:38:51,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:38:51,468 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 14:38:52,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 14:38:52,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1773647983] [2024-10-11 14:38:52,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 14:38:52,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 14:38:52,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 14:38:52,813 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 14:38:52,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-11 14:38:58,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 14:38:58,872 INFO L255 TraceCheckSpWp]: Trace formula consists of 2431 conjuncts, 249 conjuncts are in the unsatisfiable core [2024-10-11 14:38:58,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-11 14:38:59,225 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-10-11 14:38:59,228 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2024-10-11 14:38:59,741 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-11 14:38:59,964 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 55 [2024-10-11 14:39:03,491 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2024-10-11 14:39:04,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 55 [2024-10-11 14:39:14,545 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 66 proven. 33 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-10-11 14:39:14,545 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-11 14:39:31,675 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 50 [2024-10-11 14:39:34,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 14:39:34,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503066295] [2024-10-11 14:39:34,042 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-11 14:39:34,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1773647983] [2024-10-11 14:39:34,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1773647983] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-11 14:39:34,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-11 14:39:34,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46] total 46 [2024-10-11 14:39:34,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153801561] [2024-10-11 14:39:34,043 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-11 14:39:34,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-10-11 14:39:34,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 14:39:34,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-10-11 14:39:34,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=238, Invalid=3302, Unknown=0, NotChecked=0, Total=3540 [2024-10-11 14:39:34,046 INFO L87 Difference]: Start difference. First operand 106 states and 135 transitions. Second operand has 46 states, 36 states have (on average 1.8611111111111112) internal successors, (67), 37 states have internal predecessors, (67), 15 states have call successors, (19), 7 states have call predecessors, (19), 11 states have return successors, (18), 13 states have call predecessors, (18), 14 states have call successors, (18) [2024-10-11 14:39:40,849 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 14:39:45,823 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 14:39:49,981 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 14:39:54,018 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 14:39:58,026 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 14:40:02,199 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-10-11 14:40:06,325 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0] [2024-10-11 14:40:10,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Real, Int], hasArrays=true, hasNonlinArith=true, quantifiers [0]