./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_string_new_from_string_harness.i --full-output --preprocessor.use.memory.slicer true --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version abd6749d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/aws-c-common/aws_string_new_from_string_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 618de5120235c3340e11b4958ef07a29ea7e443f67840fe760124caab804e862 --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 07:49:48,563 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 07:49:48,697 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 07:49:48,701 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 07:49:48,702 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 07:49:48,728 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 07:49:48,728 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 07:49:48,729 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 07:49:48,729 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 07:49:48,732 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 07:49:48,733 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 07:49:48,733 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 07:49:48,734 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 07:49:48,735 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 07:49:48,736 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 07:49:48,736 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 07:49:48,736 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 07:49:48,736 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 07:49:48,736 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 07:49:48,737 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 07:49:48,738 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 07:49:48,739 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 07:49:48,739 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 07:49:48,739 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 07:49:48,740 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 07:49:48,740 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 07:49:48,740 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 07:49:48,740 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 07:49:48,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 07:49:48,741 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 07:49:48,742 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 07:49:48,742 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 07:49:48,742 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 07:49:48,743 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 07:49:48,743 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 07:49:48,743 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 07:49:48,743 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 07:49:48,743 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 07:49:48,743 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 07:49:48,744 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 618de5120235c3340e11b4958ef07a29ea7e443f67840fe760124caab804e862 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-23 07:49:49,087 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 07:49:49,106 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 07:49:49,109 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 07:49:49,109 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 07:49:49,110 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 07:49:49,111 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_string_new_from_string_harness.i [2023-11-23 07:49:50,244 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 07:49:50,677 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 07:49:50,677 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_new_from_string_harness.i [2023-11-23 07:49:50,724 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c6066a35/4fe2bf0f03e84526b4006832b74bad0e/FLAGfde031e38 [2023-11-23 07:49:50,832 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c6066a35/4fe2bf0f03e84526b4006832b74bad0e [2023-11-23 07:49:50,834 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 07:49:50,835 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 07:49:50,836 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 07:49:50,836 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 07:49:50,840 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 07:49:50,840 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:49:50" (1/1) ... [2023-11-23 07:49:50,841 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52dda96c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:49:50, skipping insertion in model container [2023-11-23 07:49:50,841 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:49:50" (1/1) ... [2023-11-23 07:49:50,927 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 07:49:51,161 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_new_from_string_harness.i[4500,4513] [2023-11-23 07:49:51,172 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_new_from_string_harness.i[4560,4573] [2023-11-23 07:49:51,918 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:49:51,919 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:49:51,919 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:49:51,919 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:49:51,920 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:49:51,935 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:49:51,949 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:49:51,965 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:49:51,965 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:49:52,239 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 07:49:52,240 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 07:49:52,241 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 07:49:52,243 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 07:49:52,245 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 07:49:52,245 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 07:49:52,246 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 07:49:52,246 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 07:49:52,248 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 07:49:52,249 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 07:49:52,488 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:49:52,489 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:49:52,561 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 07:49:52,609 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 07:49:52,626 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_new_from_string_harness.i[4500,4513] [2023-11-23 07:49:52,626 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_string_new_from_string_harness.i[4560,4573] [2023-11-23 07:49:52,660 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:49:52,660 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:49:52,660 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:49:52,661 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:49:52,661 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:49:52,671 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:49:52,672 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:49:52,672 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:49:52,712 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:49:52,752 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 07:49:52,753 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 07:49:52,753 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 07:49:52,754 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 07:49:52,754 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 07:49:52,755 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 07:49:52,755 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 07:49:52,755 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 07:49:52,756 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 07:49:52,756 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 07:49:52,812 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : "+r"(index)); [8269] [2023-11-23 07:49:52,814 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:49:52,814 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:49:52,823 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [8755-8766] [2023-11-23 07:49:52,840 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 07:49:53,015 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:49:53,016 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:49:53,017 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:49:53,017 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:49:53,017 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:49:53,017 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:49:53,017 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:49:53,018 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:49:53,018 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:49:53,018 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:49:53,018 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:49:53,018 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:49:53,018 WARN L675 CHandler]: The function predicate is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:49:53,019 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:49:53,019 WARN L675 CHandler]: The function memcmp is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:49:53,019 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:49:53,019 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:49:53,019 WARN L675 CHandler]: The function memchr is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 07:49:53,025 INFO L206 MainTranslator]: Completed translation [2023-11-23 07:49:53,026 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:49:53 WrapperNode [2023-11-23 07:49:53,026 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 07:49:53,027 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 07:49:53,027 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 07:49:53,027 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 07:49:53,033 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:49:53" (1/1) ... [2023-11-23 07:49:53,112 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:49:53" (1/1) ... [2023-11-23 07:49:53,158 INFO L138 Inliner]: procedures = 689, calls = 2743, calls flagged for inlining = 59, calls inlined = 9, statements flattened = 830 [2023-11-23 07:49:53,159 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 07:49:53,160 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 07:49:53,160 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 07:49:53,160 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 07:49:53,169 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:49:53" (1/1) ... [2023-11-23 07:49:53,170 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:49:53" (1/1) ... [2023-11-23 07:49:53,175 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:49:53" (1/1) ... [2023-11-23 07:49:53,216 INFO L188 MemorySlicer]: Split 525 memory accesses to 9 slices as follows [2, 0, 256, 236, 5, 21, 2, 0, 3]. 49 percent of accesses are in the largest equivalence class. The 502 initializations are split as follows [2, 0, 256, 236, 5, 0, 0, 0, 3]. The 8 writes are split as follows [0, 0, 0, 0, 0, 7, 1, 0, 0]. [2023-11-23 07:49:53,216 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:49:53" (1/1) ... [2023-11-23 07:49:53,216 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:49:53" (1/1) ... [2023-11-23 07:49:53,245 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:49:53" (1/1) ... [2023-11-23 07:49:53,249 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:49:53" (1/1) ... [2023-11-23 07:49:53,259 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:49:53" (1/1) ... [2023-11-23 07:49:53,265 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:49:53" (1/1) ... [2023-11-23 07:49:53,278 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 07:49:53,279 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 07:49:53,279 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 07:49:53,279 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 07:49:53,280 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:49:53" (1/1) ... [2023-11-23 07:49:53,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 07:49:53,302 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:49:53,342 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-23 07:49:53,349 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-23 07:49:53,396 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_is_valid [2023-11-23 07:49:53,397 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_is_valid [2023-11-23 07:49:53,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 07:49:53,397 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 07:49:53,397 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 07:49:53,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#0 [2023-11-23 07:49:53,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#1 [2023-11-23 07:49:53,397 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#2 [2023-11-23 07:49:53,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#3 [2023-11-23 07:49:53,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#4 [2023-11-23 07:49:53,398 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#5 [2023-11-23 07:49:53,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#6 [2023-11-23 07:49:53,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#7 [2023-11-23 07:49:53,399 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real#8 [2023-11-23 07:49:53,399 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2023-11-23 07:49:53,399 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2023-11-23 07:49:53,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#0 [2023-11-23 07:49:53,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#1 [2023-11-23 07:49:53,399 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#2 [2023-11-23 07:49:53,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#3 [2023-11-23 07:49:53,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#4 [2023-11-23 07:49:53,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#5 [2023-11-23 07:49:53,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#6 [2023-11-23 07:49:53,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#7 [2023-11-23 07:49:53,400 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int#8 [2023-11-23 07:49:53,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#0 [2023-11-23 07:49:53,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#1 [2023-11-23 07:49:53,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#2 [2023-11-23 07:49:53,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#3 [2023-11-23 07:49:53,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#4 [2023-11-23 07:49:53,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#5 [2023-11-23 07:49:53,401 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#6 [2023-11-23 07:49:53,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#7 [2023-11-23 07:49:53,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int#8 [2023-11-23 07:49:53,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-11-23 07:49:53,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-11-23 07:49:53,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-11-23 07:49:53,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-11-23 07:49:53,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-11-23 07:49:53,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-11-23 07:49:53,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2023-11-23 07:49:53,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2023-11-23 07:49:53,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2023-11-23 07:49:53,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#0 [2023-11-23 07:49:53,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#1 [2023-11-23 07:49:53,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#2 [2023-11-23 07:49:53,403 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#3 [2023-11-23 07:49:53,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#4 [2023-11-23 07:49:53,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#5 [2023-11-23 07:49:53,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#6 [2023-11-23 07:49:53,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#7 [2023-11-23 07:49:53,404 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy#8 [2023-11-23 07:49:53,404 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#0 [2023-11-23 07:49:53,404 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#1 [2023-11-23 07:49:53,405 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#2 [2023-11-23 07:49:53,405 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#3 [2023-11-23 07:49:53,405 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#4 [2023-11-23 07:49:53,405 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#5 [2023-11-23 07:49:53,405 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#6 [2023-11-23 07:49:53,405 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#7 [2023-11-23 07:49:53,405 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy#8 [2023-11-23 07:49:53,405 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 07:49:53,405 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 07:49:53,405 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 07:49:53,406 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 07:49:53,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 07:49:53,406 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 07:49:53,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2023-11-23 07:49:53,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2023-11-23 07:49:53,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2023-11-23 07:49:53,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2023-11-23 07:49:53,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#4 [2023-11-23 07:49:53,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#5 [2023-11-23 07:49:53,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#6 [2023-11-23 07:49:53,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#7 [2023-11-23 07:49:53,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#8 [2023-11-23 07:49:53,408 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 07:49:53,408 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 07:49:53,408 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 07:49:53,409 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 07:49:53,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#0 [2023-11-23 07:49:53,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#1 [2023-11-23 07:49:53,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#2 [2023-11-23 07:49:53,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#3 [2023-11-23 07:49:53,409 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#4 [2023-11-23 07:49:53,410 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#5 [2023-11-23 07:49:53,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#6 [2023-11-23 07:49:53,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#7 [2023-11-23 07:49:53,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$#8 [2023-11-23 07:49:53,412 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#0 [2023-11-23 07:49:53,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#1 [2023-11-23 07:49:53,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#2 [2023-11-23 07:49:53,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#3 [2023-11-23 07:49:53,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#4 [2023-11-23 07:49:53,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#5 [2023-11-23 07:49:53,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#6 [2023-11-23 07:49:53,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#7 [2023-11-23 07:49:53,418 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$#8 [2023-11-23 07:49:53,418 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-23 07:49:53,418 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-23 07:49:53,419 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 07:49:53,419 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 07:49:53,419 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2023-11-23 07:49:53,419 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2023-11-23 07:49:53,419 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 07:49:53,419 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_plus [2023-11-23 07:49:53,419 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_plus [2023-11-23 07:49:53,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2023-11-23 07:49:53,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2023-11-23 07:49:53,419 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2023-11-23 07:49:53,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2023-11-23 07:49:53,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#4 [2023-11-23 07:49:53,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#5 [2023-11-23 07:49:53,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#6 [2023-11-23 07:49:53,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#7 [2023-11-23 07:49:53,420 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#8 [2023-11-23 07:49:53,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2023-11-23 07:49:53,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2023-11-23 07:49:53,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2023-11-23 07:49:53,420 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2023-11-23 07:49:53,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#4 [2023-11-23 07:49:53,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#5 [2023-11-23 07:49:53,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#6 [2023-11-23 07:49:53,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#7 [2023-11-23 07:49:53,421 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#8 [2023-11-23 07:49:53,421 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_new_from_array [2023-11-23 07:49:53,421 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_new_from_array [2023-11-23 07:49:53,421 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 07:49:53,421 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 07:49:53,421 INFO L130 BoogieDeclarations]: Found specification of procedure aws_add_size_checked [2023-11-23 07:49:53,421 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_add_size_checked [2023-11-23 07:49:53,422 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2023-11-23 07:49:53,422 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2023-11-23 07:49:53,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-11-23 07:49:53,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-11-23 07:49:53,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-11-23 07:49:53,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-11-23 07:49:53,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-11-23 07:49:53,422 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-11-23 07:49:53,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2023-11-23 07:49:53,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2023-11-23 07:49:53,423 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2023-11-23 07:49:53,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#0 [2023-11-23 07:49:53,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#1 [2023-11-23 07:49:53,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#2 [2023-11-23 07:49:53,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#3 [2023-11-23 07:49:53,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#4 [2023-11-23 07:49:53,423 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#5 [2023-11-23 07:49:53,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#6 [2023-11-23 07:49:53,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#7 [2023-11-23 07:49:53,424 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~real#8 [2023-11-23 07:49:53,424 INFO L130 BoogieDeclarations]: Found specification of procedure aws_string_new_from_string [2023-11-23 07:49:53,424 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_string_new_from_string [2023-11-23 07:49:53,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-23 07:49:53,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-11-23 07:49:53,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-11-23 07:49:53,424 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-11-23 07:49:53,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-11-23 07:49:53,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-11-23 07:49:53,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2023-11-23 07:49:53,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2023-11-23 07:49:53,425 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2023-11-23 07:49:53,795 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 07:49:53,798 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 07:49:54,711 INFO L775 $ProcedureCfgBuilder]: dead code at ProgramPoint $Ultimate##9: assume !true; [2023-11-23 07:49:55,385 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 07:49:55,464 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 07:49:55,464 INFO L309 CfgBuilder]: Removed 2 assume(true) statements. [2023-11-23 07:49:55,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:49:55 BoogieIcfgContainer [2023-11-23 07:49:55,465 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 07:49:55,466 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 07:49:55,466 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 07:49:55,469 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 07:49:55,469 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:49:50" (1/3) ... [2023-11-23 07:49:55,469 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4772d121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:49:55, skipping insertion in model container [2023-11-23 07:49:55,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:49:53" (2/3) ... [2023-11-23 07:49:55,470 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4772d121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 07:49:55, skipping insertion in model container [2023-11-23 07:49:55,470 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 07:49:55" (3/3) ... [2023-11-23 07:49:55,471 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_string_new_from_string_harness.i [2023-11-23 07:49:55,484 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 07:49:55,484 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 07:49:55,517 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 07:49:55,522 INFO L357 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, mHoare=true, 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;@3fb511ad, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 07:49:55,522 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 07:49:55,525 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 75 states have (on average 1.2266666666666666) internal successors, (92), 75 states have internal predecessors, (92), 39 states have call successors, (39), 16 states have call predecessors, (39), 16 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) [2023-11-23 07:49:55,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-23 07:49:55,533 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:49:55,533 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:49:55,534 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:49:55,537 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:49:55,537 INFO L85 PathProgramCache]: Analyzing trace with hash -101310278, now seen corresponding path program 1 times [2023-11-23 07:49:55,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:49:55,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472709832] [2023-11-23 07:49:55,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:49:55,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:49:55,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:49:56,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:49:56,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:49:56,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:49:56,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:49:56,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 07:49:56,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:49:56,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:49:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:49:56,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 07:49:56,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:49:56,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 07:49:56,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:49:56,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 07:49:56,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:49:56,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 07:49:56,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:49:56,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:49:56,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:49:56,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:49:56,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:49:56,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:49:56,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:49:56,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:49:56,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:49:56,334 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 07:49:56,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:49:56,336 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472709832] [2023-11-23 07:49:56,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472709832] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:49:56,338 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:49:56,338 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 07:49:56,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139215151] [2023-11-23 07:49:56,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:49:56,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 07:49:56,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:49:56,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 07:49:56,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 07:49:56,379 INFO L87 Difference]: Start difference. First operand has 131 states, 75 states have (on average 1.2266666666666666) internal successors, (92), 75 states have internal predecessors, (92), 39 states have call successors, (39), 16 states have call predecessors, (39), 16 states have return successors, (39), 39 states have call predecessors, (39), 39 states have call successors, (39) Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 2 states have internal predecessors, (33), 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) [2023-11-23 07:49:57,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:49:57,270 INFO L93 Difference]: Finished difference Result 271 states and 373 transitions. [2023-11-23 07:49:57,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 07:49:57,272 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 2 states have internal predecessors, (33), 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 70 [2023-11-23 07:49:57,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:49:57,279 INFO L225 Difference]: With dead ends: 271 [2023-11-23 07:49:57,280 INFO L226 Difference]: Without dead ends: 142 [2023-11-23 07:49:57,283 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-23 07:49:57,286 INFO L413 NwaCegarLoop]: 100 mSDtfsCounter, 51 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 206 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-23 07:49:57,286 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 165 Invalid, 206 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-23 07:49:57,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2023-11-23 07:49:57,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 129. [2023-11-23 07:49:57,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 73 states have (on average 1.2054794520547945) internal successors, (88), 74 states have internal predecessors, (88), 39 states have call successors, (39), 16 states have call predecessors, (39), 16 states have return successors, (38), 38 states have call predecessors, (38), 38 states have call successors, (38) [2023-11-23 07:49:57,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 165 transitions. [2023-11-23 07:49:57,330 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 165 transitions. Word has length 70 [2023-11-23 07:49:57,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:49:57,331 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 165 transitions. [2023-11-23 07:49:57,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 2 states have internal predecessors, (33), 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) [2023-11-23 07:49:57,331 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 165 transitions. [2023-11-23 07:49:57,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2023-11-23 07:49:57,334 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:49:57,334 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:49:57,334 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-23 07:49:57,334 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:49:57,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:49:57,335 INFO L85 PathProgramCache]: Analyzing trace with hash -1515167360, now seen corresponding path program 1 times [2023-11-23 07:49:57,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:49:57,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750396945] [2023-11-23 07:49:57,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:49:57,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:49:57,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:49:58,237 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:49:58,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:49:58,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:49:58,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:49:58,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 07:49:58,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:49:58,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:49:58,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:49:58,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 07:49:58,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:49:58,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 07:49:58,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:49:58,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 07:49:58,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:49:58,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 07:49:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:49:58,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:49:58,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:49:58,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:49:58,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:49:58,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:49:58,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:49:58,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:49:58,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:49:58,677 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 07:49:58,677 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:49:58,677 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750396945] [2023-11-23 07:49:58,678 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750396945] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:49:58,678 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:49:58,678 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 07:49:58,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442797320] [2023-11-23 07:49:58,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:49:58,679 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 07:49:58,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:49:58,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 07:49:58,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:49:58,680 INFO L87 Difference]: Start difference. First operand 129 states and 165 transitions. Second operand has 10 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 07:49:59,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:49:59,812 INFO L93 Difference]: Finished difference Result 214 states and 279 transitions. [2023-11-23 07:49:59,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-23 07:49:59,812 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) Word has length 70 [2023-11-23 07:49:59,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:49:59,814 INFO L225 Difference]: With dead ends: 214 [2023-11-23 07:49:59,814 INFO L226 Difference]: Without dead ends: 170 [2023-11-23 07:49:59,815 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2023-11-23 07:49:59,816 INFO L413 NwaCegarLoop]: 114 mSDtfsCounter, 109 mSDsluCounter, 537 mSDsCounter, 0 mSdLazyCounter, 729 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 651 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:49:59,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 651 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 729 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 07:49:59,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2023-11-23 07:49:59,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 133. [2023-11-23 07:49:59,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 76 states have (on average 1.1973684210526316) internal successors, (91), 77 states have internal predecessors, (91), 39 states have call successors, (39), 16 states have call predecessors, (39), 17 states have return successors, (39), 39 states have call predecessors, (39), 38 states have call successors, (39) [2023-11-23 07:49:59,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 169 transitions. [2023-11-23 07:49:59,832 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 169 transitions. Word has length 70 [2023-11-23 07:49:59,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:49:59,832 INFO L495 AbstractCegarLoop]: Abstraction has 133 states and 169 transitions. [2023-11-23 07:49:59,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 3 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (12), 3 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 07:49:59,833 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 169 transitions. [2023-11-23 07:49:59,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2023-11-23 07:49:59,834 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:49:59,834 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:49:59,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-23 07:49:59,834 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:49:59,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:49:59,834 INFO L85 PathProgramCache]: Analyzing trace with hash 133199119, now seen corresponding path program 1 times [2023-11-23 07:49:59,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:49:59,835 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1463543283] [2023-11-23 07:49:59,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:49:59,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:49:59,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:00,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:00,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:00,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:50:00,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:00,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 07:50:00,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:00,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:00,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:00,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 07:50:00,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:00,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 07:50:01,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:01,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 07:50:01,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:01,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 07:50:01,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:01,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:01,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:01,351 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:50:01,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:01,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:50:01,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:01,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:01,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:01,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:50:01,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:01,390 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 07:50:01,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:50:01,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1463543283] [2023-11-23 07:50:01,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1463543283] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:50:01,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:50:01,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 07:50:01,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810765625] [2023-11-23 07:50:01,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:50:01,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 07:50:01,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:50:01,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 07:50:01,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:50:01,396 INFO L87 Difference]: Start difference. First operand 133 states and 169 transitions. Second operand has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-23 07:50:02,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:50:02,872 INFO L93 Difference]: Finished difference Result 231 states and 309 transitions. [2023-11-23 07:50:02,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-11-23 07:50:02,873 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 74 [2023-11-23 07:50:02,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:50:02,879 INFO L225 Difference]: With dead ends: 231 [2023-11-23 07:50:02,880 INFO L226 Difference]: Without dead ends: 191 [2023-11-23 07:50:02,881 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:50:02,882 INFO L413 NwaCegarLoop]: 102 mSDtfsCounter, 137 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 706 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 162 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 706 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:50:02,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [162 Valid, 574 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 706 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-23 07:50:02,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2023-11-23 07:50:02,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 140. [2023-11-23 07:50:02,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 79 states have (on average 1.1898734177215189) internal successors, (94), 82 states have internal predecessors, (94), 42 states have call successors, (42), 16 states have call predecessors, (42), 18 states have return successors, (43), 41 states have call predecessors, (43), 41 states have call successors, (43) [2023-11-23 07:50:02,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 179 transitions. [2023-11-23 07:50:02,917 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 179 transitions. Word has length 74 [2023-11-23 07:50:02,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:50:02,918 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 179 transitions. [2023-11-23 07:50:02,918 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 7 states have internal predecessors, (35), 4 states have call successors, (14), 5 states have call predecessors, (14), 2 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2023-11-23 07:50:02,918 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 179 transitions. [2023-11-23 07:50:02,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2023-11-23 07:50:02,923 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:50:02,923 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:50:02,923 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-23 07:50:02,923 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:50:02,924 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:50:02,924 INFO L85 PathProgramCache]: Analyzing trace with hash 839327888, now seen corresponding path program 1 times [2023-11-23 07:50:02,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:50:02,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084120164] [2023-11-23 07:50:02,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:50:02,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:50:02,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:03,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:03,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:03,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:50:03,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:03,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 07:50:03,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:03,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:03,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 07:50:03,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:03,699 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 07:50:03,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:03,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 07:50:03,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:03,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 07:50:03,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:03,920 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 07:50:03,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:03,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:03,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:50:03,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:03,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:50:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:03,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:03,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:03,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:50:03,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:03,991 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 07:50:03,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:50:03,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084120164] [2023-11-23 07:50:03,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084120164] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:50:03,992 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:50:03,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2023-11-23 07:50:03,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914384794] [2023-11-23 07:50:03,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:50:03,993 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-11-23 07:50:03,993 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:50:03,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-11-23 07:50:03,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=179, Unknown=0, NotChecked=0, Total=210 [2023-11-23 07:50:03,995 INFO L87 Difference]: Start difference. First operand 140 states and 179 transitions. Second operand has 15 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 11 states have internal predecessors, (41), 6 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-23 07:50:06,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:50:06,101 INFO L93 Difference]: Finished difference Result 222 states and 296 transitions. [2023-11-23 07:50:06,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-11-23 07:50:06,101 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 11 states have internal predecessors, (41), 6 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) Word has length 82 [2023-11-23 07:50:06,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:50:06,103 INFO L225 Difference]: With dead ends: 222 [2023-11-23 07:50:06,103 INFO L226 Difference]: Without dead ends: 178 [2023-11-23 07:50:06,103 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=115, Invalid=535, Unknown=0, NotChecked=0, Total=650 [2023-11-23 07:50:06,104 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 166 mSDsluCounter, 682 mSDsCounter, 0 mSdLazyCounter, 1121 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 193 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 1232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 1121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2023-11-23 07:50:06,104 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [193 Valid, 770 Invalid, 1232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 1121 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2023-11-23 07:50:06,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2023-11-23 07:50:06,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 148. [2023-11-23 07:50:06,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148 states, 84 states have (on average 1.1904761904761905) internal successors, (100), 88 states have internal predecessors, (100), 44 states have call successors, (44), 16 states have call predecessors, (44), 19 states have return successors, (47), 43 states have call predecessors, (47), 42 states have call successors, (47) [2023-11-23 07:50:06,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148 states to 148 states and 191 transitions. [2023-11-23 07:50:06,140 INFO L78 Accepts]: Start accepts. Automaton has 148 states and 191 transitions. Word has length 82 [2023-11-23 07:50:06,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:50:06,142 INFO L495 AbstractCegarLoop]: Abstraction has 148 states and 191 transitions. [2023-11-23 07:50:06,142 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.9285714285714284) internal successors, (41), 11 states have internal predecessors, (41), 6 states have call successors, (15), 5 states have call predecessors, (15), 4 states have return successors, (14), 5 states have call predecessors, (14), 5 states have call successors, (14) [2023-11-23 07:50:06,145 INFO L276 IsEmpty]: Start isEmpty. Operand 148 states and 191 transitions. [2023-11-23 07:50:06,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2023-11-23 07:50:06,146 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:50:06,147 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:50:06,147 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-23 07:50:06,147 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:50:06,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:50:06,149 INFO L85 PathProgramCache]: Analyzing trace with hash -1366175780, now seen corresponding path program 1 times [2023-11-23 07:50:06,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:50:06,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764922557] [2023-11-23 07:50:06,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:50:06,150 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:50:06,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:06,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:06,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:06,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:50:06,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:06,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 07:50:06,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:06,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:06,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:06,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 07:50:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:06,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-23 07:50:06,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:06,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-23 07:50:06,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:06,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 07:50:06,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:06,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 07:50:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:06,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 07:50:06,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:06,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:06,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:06,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:50:06,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:06,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:50:06,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:06,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:06,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:06,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:50:06,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:07,001 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 07:50:07,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:50:07,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764922557] [2023-11-23 07:50:07,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764922557] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:50:07,001 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:50:07,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2023-11-23 07:50:07,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791474713] [2023-11-23 07:50:07,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:50:07,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-23 07:50:07,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:50:07,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-23 07:50:07,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2023-11-23 07:50:07,003 INFO L87 Difference]: Start difference. First operand 148 states and 191 transitions. Second operand has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-23 07:50:08,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:50:08,126 INFO L93 Difference]: Finished difference Result 235 states and 310 transitions. [2023-11-23 07:50:08,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 07:50:08,126 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 1 states have call successors, (15) Word has length 86 [2023-11-23 07:50:08,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:50:08,131 INFO L225 Difference]: With dead ends: 235 [2023-11-23 07:50:08,131 INFO L226 Difference]: Without dead ends: 193 [2023-11-23 07:50:08,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2023-11-23 07:50:08,132 INFO L413 NwaCegarLoop]: 94 mSDtfsCounter, 122 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 535 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:50:08,132 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 535 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 07:50:08,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2023-11-23 07:50:08,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 156. [2023-11-23 07:50:08,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 89 states have (on average 1.1797752808988764) internal successors, (105), 93 states have internal predecessors, (105), 44 states have call successors, (44), 16 states have call predecessors, (44), 22 states have return successors, (52), 46 states have call predecessors, (52), 42 states have call successors, (52) [2023-11-23 07:50:08,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 201 transitions. [2023-11-23 07:50:08,194 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 201 transitions. Word has length 86 [2023-11-23 07:50:08,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:50:08,194 INFO L495 AbstractCegarLoop]: Abstraction has 156 states and 201 transitions. [2023-11-23 07:50:08,194 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 4.777777777777778) internal successors, (43), 5 states have internal predecessors, (43), 2 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (15), 3 states have call predecessors, (15), 1 states have call successors, (15) [2023-11-23 07:50:08,194 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 201 transitions. [2023-11-23 07:50:08,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-23 07:50:08,198 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:50:08,198 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-23 07:50:08,198 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-23 07:50:08,199 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:50:08,199 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:50:08,199 INFO L85 PathProgramCache]: Analyzing trace with hash 1860227676, now seen corresponding path program 1 times [2023-11-23 07:50:08,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:50:08,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634893046] [2023-11-23 07:50:08,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:50:08,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:50:08,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:09,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:09,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:09,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:50:09,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:10,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 07:50:10,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:10,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:10,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:10,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 07:50:10,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:10,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 07:50:10,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:10,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 07:50:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:10,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 07:50:10,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:10,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 07:50:10,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:10,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:10,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:10,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:50:10,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:10,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:50:10,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:10,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:10,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:50:10,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:10,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-23 07:50:10,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:10,308 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2023-11-23 07:50:10,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:50:10,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634893046] [2023-11-23 07:50:10,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634893046] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:50:10,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1831414177] [2023-11-23 07:50:10,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:50:10,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:50:10,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:50:10,311 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) [2023-11-23 07:50:10,364 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-23 07:50:10,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:10,831 INFO L262 TraceCheckSpWp]: Trace formula consists of 2859 conjuncts, 126 conjunts are in the unsatisfiable core [2023-11-23 07:50:10,844 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:50:11,022 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 55 [2023-11-23 07:50:11,071 INFO L349 Elim1Store]: treesize reduction 26, result has 49.0 percent of original size [2023-11-23 07:50:11,071 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 127 [2023-11-23 07:50:11,101 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 68 treesize of output 55 [2023-11-23 07:50:11,139 INFO L349 Elim1Store]: treesize reduction 26, result has 49.0 percent of original size [2023-11-23 07:50:11,140 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 55 treesize of output 127 [2023-11-23 07:50:11,163 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 49 [2023-11-23 07:50:11,196 INFO L349 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2023-11-23 07:50:11,197 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 106 [2023-11-23 07:50:11,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:50:11,249 INFO L173 IndexEqualityManager]: detected equality via solver [2023-11-23 07:50:11,250 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 11 [2023-11-23 07:50:11,285 INFO L349 Elim1Store]: treesize reduction 56, result has 1.8 percent of original size [2023-11-23 07:50:11,286 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 4 case distinctions, treesize of input 115 treesize of output 35 [2023-11-23 07:50:11,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:50:11,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-11-23 07:50:11,424 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 115 treesize of output 36 [2023-11-23 07:50:11,699 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 404 treesize of output 390 [2023-11-23 07:50:11,704 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 392 treesize of output 378 [2023-11-23 07:50:11,708 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 292 treesize of output 280 [2023-11-23 07:50:11,716 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2023-11-23 07:50:11,717 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 275 treesize of output 246 [2023-11-23 07:50:13,125 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2023-11-23 07:50:13,125 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 07:50:13,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1831414177] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:50:13,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-23 07:50:13,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [12] total 34 [2023-11-23 07:50:13,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312137540] [2023-11-23 07:50:13,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:50:13,126 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-11-23 07:50:13,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:50:13,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-11-23 07:50:13,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=1038, Unknown=0, NotChecked=0, Total=1122 [2023-11-23 07:50:13,127 INFO L87 Difference]: Start difference. First operand 156 states and 201 transitions. Second operand has 25 states, 20 states have (on average 2.45) internal successors, (49), 21 states have internal predecessors, (49), 8 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (15), 9 states have call predecessors, (15), 7 states have call successors, (15) [2023-11-23 07:50:16,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:50:16,794 INFO L93 Difference]: Finished difference Result 196 states and 251 transitions. [2023-11-23 07:50:16,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2023-11-23 07:50:16,794 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 20 states have (on average 2.45) internal successors, (49), 21 states have internal predecessors, (49), 8 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (15), 9 states have call predecessors, (15), 7 states have call successors, (15) Word has length 89 [2023-11-23 07:50:16,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:50:16,796 INFO L225 Difference]: With dead ends: 196 [2023-11-23 07:50:16,796 INFO L226 Difference]: Without dead ends: 181 [2023-11-23 07:50:16,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 364 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=175, Invalid=2081, Unknown=0, NotChecked=0, Total=2256 [2023-11-23 07:50:16,797 INFO L413 NwaCegarLoop]: 87 mSDtfsCounter, 105 mSDsluCounter, 1082 mSDsCounter, 0 mSdLazyCounter, 2370 mSolverCounterSat, 44 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 1169 SdHoareTripleChecker+Invalid, 2417 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 2370 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2023-11-23 07:50:16,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 1169 Invalid, 2417 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 2370 Invalid, 3 Unknown, 0 Unchecked, 2.9s Time] [2023-11-23 07:50:16,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2023-11-23 07:50:16,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 172. [2023-11-23 07:50:16,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 101 states have (on average 1.1683168316831682) internal successors, (118), 105 states have internal predecessors, (118), 47 states have call successors, (47), 18 states have call predecessors, (47), 23 states have return successors, (55), 48 states have call predecessors, (55), 44 states have call successors, (55) [2023-11-23 07:50:16,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 220 transitions. [2023-11-23 07:50:16,814 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 220 transitions. Word has length 89 [2023-11-23 07:50:16,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:50:16,814 INFO L495 AbstractCegarLoop]: Abstraction has 172 states and 220 transitions. [2023-11-23 07:50:16,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 20 states have (on average 2.45) internal successors, (49), 21 states have internal predecessors, (49), 8 states have call successors, (16), 4 states have call predecessors, (16), 6 states have return successors, (15), 9 states have call predecessors, (15), 7 states have call successors, (15) [2023-11-23 07:50:16,815 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 220 transitions. [2023-11-23 07:50:16,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2023-11-23 07:50:16,816 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:50:16,816 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-23 07:50:16,832 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-11-23 07:50:17,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2023-11-23 07:50:17,031 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:50:17,031 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:50:17,031 INFO L85 PathProgramCache]: Analyzing trace with hash -966225747, now seen corresponding path program 1 times [2023-11-23 07:50:17,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:50:17,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612881007] [2023-11-23 07:50:17,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:50:17,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:50:17,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:17,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:17,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:50:17,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:17,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 07:50:17,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:17,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:17,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:17,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 07:50:17,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:17,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2023-11-23 07:50:17,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:17,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-23 07:50:17,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:17,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 07:50:17,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:17,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2023-11-23 07:50:17,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:17,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:17,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:17,802 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:50:17,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:17,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:50:17,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:17,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:17,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:17,827 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:50:17,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:17,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2023-11-23 07:50:17,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:17,839 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 07:50:17,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:50:17,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612881007] [2023-11-23 07:50:17,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612881007] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 07:50:17,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 07:50:17,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2023-11-23 07:50:17,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308684569] [2023-11-23 07:50:17,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 07:50:17,841 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-11-23 07:50:17,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:50:17,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-11-23 07:50:17,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2023-11-23 07:50:17,842 INFO L87 Difference]: Start difference. First operand 172 states and 220 transitions. Second operand has 13 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 9 states have internal predecessors, (42), 5 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-23 07:50:19,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:50:19,472 INFO L93 Difference]: Finished difference Result 277 states and 369 transitions. [2023-11-23 07:50:19,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-23 07:50:19,473 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 9 states have internal predecessors, (42), 5 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) Word has length 85 [2023-11-23 07:50:19,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:50:19,474 INFO L225 Difference]: With dead ends: 277 [2023-11-23 07:50:19,474 INFO L226 Difference]: Without dead ends: 223 [2023-11-23 07:50:19,475 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=118, Invalid=482, Unknown=0, NotChecked=0, Total=600 [2023-11-23 07:50:19,475 INFO L413 NwaCegarLoop]: 107 mSDtfsCounter, 266 mSDsluCounter, 594 mSDsCounter, 0 mSdLazyCounter, 901 mSolverCounterSat, 193 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 285 SdHoareTripleChecker+Valid, 701 SdHoareTripleChecker+Invalid, 1094 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 193 IncrementalHoareTripleChecker+Valid, 901 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2023-11-23 07:50:19,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [285 Valid, 701 Invalid, 1094 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [193 Valid, 901 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2023-11-23 07:50:19,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 223 states. [2023-11-23 07:50:19,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 223 to 163. [2023-11-23 07:50:19,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 97 states have (on average 1.175257731958763) internal successors, (114), 99 states have internal predecessors, (114), 44 states have call successors, (44), 18 states have call predecessors, (44), 21 states have return successors, (48), 45 states have call predecessors, (48), 41 states have call successors, (48) [2023-11-23 07:50:19,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 206 transitions. [2023-11-23 07:50:19,492 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 206 transitions. Word has length 85 [2023-11-23 07:50:19,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:50:19,492 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 206 transitions. [2023-11-23 07:50:19,492 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 9 states have internal predecessors, (42), 5 states have call successors, (16), 5 states have call predecessors, (16), 3 states have return successors, (15), 6 states have call predecessors, (15), 5 states have call successors, (15) [2023-11-23 07:50:19,492 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 206 transitions. [2023-11-23 07:50:19,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2023-11-23 07:50:19,493 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:50:19,493 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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] [2023-11-23 07:50:19,493 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-23 07:50:19,494 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:50:19,494 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:50:19,494 INFO L85 PathProgramCache]: Analyzing trace with hash 20326112, now seen corresponding path program 1 times [2023-11-23 07:50:19,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:50:19,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272722025] [2023-11-23 07:50:19,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:50:19,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:50:19,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:20,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:20,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:20,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:50:20,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:20,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 07:50:20,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:20,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:20,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:20,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 07:50:20,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:20,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2023-11-23 07:50:20,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:20,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 07:50:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:20,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 07:50:20,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:20,465 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 07:50:20,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:20,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:20,490 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:50:20,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:20,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:50:20,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:20,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:20,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:20,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:50:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:20,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2023-11-23 07:50:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:20,601 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-23 07:50:20,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 07:50:20,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272722025] [2023-11-23 07:50:20,602 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272722025] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-23 07:50:20,602 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1249863677] [2023-11-23 07:50:20,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:50:20,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 07:50:20,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 07:50:20,603 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 07:50:20,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-23 07:50:21,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:21,126 INFO L262 TraceCheckSpWp]: Trace formula consists of 2851 conjuncts, 38 conjunts are in the unsatisfiable core [2023-11-23 07:50:21,130 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 07:50:21,246 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-23 07:50:21,246 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 07:50:21,521 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2023-11-23 07:50:21,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1249863677] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 07:50:21,521 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-23 07:50:21,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 13, 13] total 20 [2023-11-23 07:50:21,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528319372] [2023-11-23 07:50:21,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-23 07:50:21,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-11-23 07:50:21,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 07:50:21,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-11-23 07:50:21,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=331, Unknown=0, NotChecked=0, Total=380 [2023-11-23 07:50:21,523 INFO L87 Difference]: Start difference. First operand 163 states and 206 transitions. Second operand has 20 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 16 states have internal predecessors, (60), 8 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) [2023-11-23 07:50:24,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 07:50:24,323 INFO L93 Difference]: Finished difference Result 260 states and 348 transitions. [2023-11-23 07:50:24,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-11-23 07:50:24,324 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 16 states have internal predecessors, (60), 8 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) Word has length 89 [2023-11-23 07:50:24,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 07:50:24,325 INFO L225 Difference]: With dead ends: 260 [2023-11-23 07:50:24,325 INFO L226 Difference]: Without dead ends: 237 [2023-11-23 07:50:24,326 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=167, Invalid=955, Unknown=0, NotChecked=0, Total=1122 [2023-11-23 07:50:24,326 INFO L413 NwaCegarLoop]: 106 mSDtfsCounter, 148 mSDsluCounter, 1053 mSDsCounter, 0 mSdLazyCounter, 1648 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 177 SdHoareTripleChecker+Valid, 1159 SdHoareTripleChecker+Invalid, 1738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2023-11-23 07:50:24,327 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [177 Valid, 1159 Invalid, 1738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1648 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2023-11-23 07:50:24,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2023-11-23 07:50:24,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 198. [2023-11-23 07:50:24,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 117 states have (on average 1.1623931623931625) internal successors, (136), 118 states have internal predecessors, (136), 56 states have call successors, (56), 19 states have call predecessors, (56), 24 states have return successors, (70), 60 states have call predecessors, (70), 53 states have call successors, (70) [2023-11-23 07:50:24,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 262 transitions. [2023-11-23 07:50:24,344 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 262 transitions. Word has length 89 [2023-11-23 07:50:24,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 07:50:24,344 INFO L495 AbstractCegarLoop]: Abstraction has 198 states and 262 transitions. [2023-11-23 07:50:24,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 16 states have internal predecessors, (60), 8 states have call successors, (23), 5 states have call predecessors, (23), 5 states have return successors, (16), 6 states have call predecessors, (16), 7 states have call successors, (16) [2023-11-23 07:50:24,345 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 262 transitions. [2023-11-23 07:50:24,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2023-11-23 07:50:24,345 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 07:50:24,346 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 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, 1] [2023-11-23 07:50:24,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-11-23 07:50:24,561 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2023-11-23 07:50:24,562 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 07:50:24,562 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 07:50:24,562 INFO L85 PathProgramCache]: Analyzing trace with hash 1427006523, now seen corresponding path program 1 times [2023-11-23 07:50:24,563 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 07:50:24,563 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718720915] [2023-11-23 07:50:24,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 07:50:24,563 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 07:50:25,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:28,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:28,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:28,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:50:28,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:28,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2023-11-23 07:50:28,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:28,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:28,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:28,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2023-11-23 07:50:28,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:28,660 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-11-23 07:50:28,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:28,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2023-11-23 07:50:28,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:28,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-23 07:50:28,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:29,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-23 07:50:29,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:29,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2023-11-23 07:50:29,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:29,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:29,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:29,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-11-23 07:50:29,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:29,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-11-23 07:50:29,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:29,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2023-11-23 07:50:29,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:29,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2023-11-23 07:50:29,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 07:50:29,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-23 07:50:29,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Killed by 15