./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/aws-c-common/aws_array_list_init_dynamic_harness_negated.i --full-output --preprocessor.use.memory.slicer false --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_array_list_init_dynamic_harness_negated.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 4fba53eae116f038bd962430e19a91efa0043f9d79722c85dacab33d4a787520 --preprocessor.use.memory.slicer false --- Real Ultimate output --- This is Ultimate 0.2.3-?-abd6749-m [2023-11-23 07:59:56,029 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-23 07:59:56,103 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2023-11-23 07:59:56,109 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-23 07:59:56,110 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-23 07:59:56,159 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-23 07:59:56,160 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-23 07:59:56,161 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-23 07:59:56,162 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-23 07:59:56,168 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-23 07:59:56,168 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-23 07:59:56,169 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-23 07:59:56,170 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-23 07:59:56,171 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-23 07:59:56,171 INFO L153 SettingsManager]: * Use SBE=true [2023-11-23 07:59:56,172 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-23 07:59:56,172 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-23 07:59:56,172 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-23 07:59:56,173 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-23 07:59:56,173 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-23 07:59:56,173 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-23 07:59:56,174 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-23 07:59:56,174 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-23 07:59:56,174 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-23 07:59:56,175 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-23 07:59:56,175 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-23 07:59:56,176 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-23 07:59:56,176 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-23 07:59:56,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 07:59:56,176 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-23 07:59:56,177 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-23 07:59:56,178 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-23 07:59:56,178 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-23 07:59:56,178 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-23 07:59:56,178 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-23 07:59:56,179 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-23 07:59:56,179 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-23 07:59:56,179 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-23 07:59:56,179 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-23 07:59:56,180 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4fba53eae116f038bd962430e19a91efa0043f9d79722c85dacab33d4a787520 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> false [2023-11-23 07:59:56,449 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-23 07:59:56,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-23 07:59:56,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-23 07:59:56,478 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-23 07:59:56,478 INFO L274 PluginConnector]: CDTParser initialized [2023-11-23 07:59:56,479 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/aws-c-common/aws_array_list_init_dynamic_harness_negated.i [2023-11-23 07:59:57,661 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-23 07:59:58,090 INFO L384 CDTParser]: Found 1 translation units. [2023-11-23 07:59:58,090 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/aws-c-common/aws_array_list_init_dynamic_harness_negated.i [2023-11-23 07:59:58,122 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83a5bb4ef/7860a7dc4ee14725ae42be18e073cbbb/FLAG7924bb9c9 [2023-11-23 07:59:58,139 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83a5bb4ef/7860a7dc4ee14725ae42be18e073cbbb [2023-11-23 07:59:58,143 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-23 07:59:58,145 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-23 07:59:58,147 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-23 07:59:58,147 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-23 07:59:58,151 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-23 07:59:58,152 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:59:58" (1/1) ... [2023-11-23 07:59:58,153 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@413b8be1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 07:59:58, skipping insertion in model container [2023-11-23 07:59:58,153 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 07:59:58" (1/1) ... [2023-11-23 07:59:58,242 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-23 07:59:58,457 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_array_list_init_dynamic_harness_negated.i[4501,4514] [2023-11-23 07:59:58,465 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_array_list_init_dynamic_harness_negated.i[4561,4574] [2023-11-23 07:59:59,142 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,143 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,144 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,144 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,146 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,157 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,158 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,159 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,160 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,161 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,162 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,163 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,163 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,436 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 07:59:59,437 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 07:59:59,438 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 07:59:59,439 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 07:59:59,446 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 07:59:59,448 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 07:59:59,449 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 07:59:59,450 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 07:59:59,450 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 07:59:59,451 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 07:59:59,567 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,575 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,692 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 07:59:59,725 INFO L202 MainTranslator]: Completed pre-run [2023-11-23 07:59:59,737 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_array_list_init_dynamic_harness_negated.i[4501,4514] [2023-11-23 07:59:59,738 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_array_list_init_dynamic_harness_negated.i[4561,4574] [2023-11-23 07:59:59,812 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,813 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,813 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,814 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,815 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,824 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,825 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,825 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,826 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,827 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,827 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,828 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,828 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,873 WARN L635 FunctionHandler]: implicit declaration of function __atomic_load_n [2023-11-23 07:59:59,875 WARN L635 FunctionHandler]: implicit declaration of function __atomic_store_n [2023-11-23 07:59:59,875 WARN L635 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2023-11-23 07:59:59,877 WARN L635 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2023-11-23 07:59:59,878 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2023-11-23 07:59:59,879 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2023-11-23 07:59:59,880 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2023-11-23 07:59:59,880 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2023-11-23 07:59:59,881 WARN L635 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2023-11-23 07:59:59,881 WARN L635 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2023-11-23 07:59:59,896 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,903 WARN L1590 CHandler]: Possible shadowing of function index [2023-11-23 07:59:59,908 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" : : "r"(pBuf) : "memory"); [7517-7528] [2023-11-23 07:59:59,932 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-23 08:00:00,076 WARN L675 CHandler]: The function __atomic_fetch_or is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:00:00,076 WARN L675 CHandler]: The function __atomic_fetch_sub is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:00:00,076 WARN L675 CHandler]: The function __atomic_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:00:00,077 WARN L675 CHandler]: The function __atomic_fetch_xor is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:00:00,077 WARN L675 CHandler]: The function htons is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:00:00,077 WARN L675 CHandler]: The function ntohl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:00:00,077 WARN L675 CHandler]: The function __atomic_compare_exchange_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:00:00,077 WARN L675 CHandler]: The function __atomic_fetch_add is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:00:00,077 WARN L675 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:00:00,077 WARN L675 CHandler]: The function htonl is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:00:00,078 WARN L675 CHandler]: The function __atomic_store_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:00:00,078 WARN L675 CHandler]: The function ntohs is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:00:00,078 WARN L675 CHandler]: The function __atomic_load_n is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:00:00,078 WARN L675 CHandler]: The function __atomic_thread_fence is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:00:00,078 WARN L675 CHandler]: The function __atomic_fetch_and is called, but not defined or handled by StandardFunctionHandler. [2023-11-23 08:00:00,085 INFO L206 MainTranslator]: Completed translation [2023-11-23 08:00:00,086 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:00:00 WrapperNode [2023-11-23 08:00:00,086 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-23 08:00:00,087 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-23 08:00:00,087 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-23 08:00:00,087 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-23 08:00:00,093 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:00:00" (1/1) ... [2023-11-23 08:00:00,161 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:00:00" (1/1) ... [2023-11-23 08:00:00,253 INFO L138 Inliner]: procedures = 689, calls = 1562, calls flagged for inlining = 47, calls inlined = 6, statements flattened = 596 [2023-11-23 08:00:00,254 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-23 08:00:00,255 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-23 08:00:00,255 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-23 08:00:00,255 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-23 08:00:00,265 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:00:00" (1/1) ... [2023-11-23 08:00:00,266 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:00:00" (1/1) ... [2023-11-23 08:00:00,272 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:00:00" (1/1) ... [2023-11-23 08:00:00,282 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:00:00" (1/1) ... [2023-11-23 08:00:00,318 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:00:00" (1/1) ... [2023-11-23 08:00:00,334 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:00:00" (1/1) ... [2023-11-23 08:00:00,339 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:00:00" (1/1) ... [2023-11-23 08:00:00,355 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:00:00" (1/1) ... [2023-11-23 08:00:00,363 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-23 08:00:00,364 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-23 08:00:00,364 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-23 08:00:00,373 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-23 08:00:00,375 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:00:00" (1/1) ... [2023-11-23 08:00:00,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-23 08:00:00,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:00:00,439 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 08:00:00,462 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 08:00:00,502 INFO L130 BoogieDeclarations]: Found specification of procedure aws_is_mem_zeroed [2023-11-23 08:00:00,503 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_is_mem_zeroed [2023-11-23 08:00:00,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-23 08:00:00,503 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2023-11-23 08:00:00,503 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2023-11-23 08:00:00,503 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2023-11-23 08:00:00,503 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2023-11-23 08:00:00,504 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2023-11-23 08:00:00,504 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2023-11-23 08:00:00,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-23 08:00:00,505 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2023-11-23 08:00:00,505 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2023-11-23 08:00:00,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-11-23 08:00:00,505 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-11-23 08:00:00,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-11-23 08:00:00,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-23 08:00:00,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-11-23 08:00:00,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-23 08:00:00,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-23 08:00:00,506 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2023-11-23 08:00:00,506 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2023-11-23 08:00:00,506 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2023-11-23 08:00:00,506 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2023-11-23 08:00:00,506 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2023-11-23 08:00:00,507 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2023-11-23 08:00:00,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2023-11-23 08:00:00,507 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2023-11-23 08:00:00,507 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-11-23 08:00:00,507 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-11-23 08:00:00,507 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2023-11-23 08:00:00,507 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2023-11-23 08:00:00,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-23 08:00:00,508 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-11-23 08:00:00,508 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2023-11-23 08:00:00,509 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2023-11-23 08:00:00,509 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2023-11-23 08:00:00,510 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2023-11-23 08:00:00,510 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2023-11-23 08:00:00,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-23 08:00:00,510 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-23 08:00:00,789 INFO L241 CfgBuilder]: Building ICFG [2023-11-23 08:00:00,791 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-23 08:00:01,449 INFO L282 CfgBuilder]: Performing block encoding [2023-11-23 08:00:01,554 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-23 08:00:01,555 INFO L309 CfgBuilder]: Removed 3 assume(true) statements. [2023-11-23 08:00:01,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:00:01 BoogieIcfgContainer [2023-11-23 08:00:01,556 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-23 08:00:01,558 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-23 08:00:01,558 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-23 08:00:01,562 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-23 08:00:01,562 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 07:59:58" (1/3) ... [2023-11-23 08:00:01,563 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71238e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:00:01, skipping insertion in model container [2023-11-23 08:00:01,563 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 08:00:00" (2/3) ... [2023-11-23 08:00:01,565 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71238e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 08:00:01, skipping insertion in model container [2023-11-23 08:00:01,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 08:00:01" (3/3) ... [2023-11-23 08:00:01,568 INFO L112 eAbstractionObserver]: Analyzing ICFG aws_array_list_init_dynamic_harness_negated.i [2023-11-23 08:00:01,587 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-23 08:00:01,587 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-11-23 08:00:01,674 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-23 08:00:01,680 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;@2246095a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-23 08:00:01,681 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-11-23 08:00:01,685 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 72 states have (on average 1.2777777777777777) internal successors, (92), 73 states have internal predecessors, (92), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2023-11-23 08:00:01,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-11-23 08:00:01,698 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:00:01,699 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] [2023-11-23 08:00:01,700 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:00:01,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:00:01,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1054372336, now seen corresponding path program 1 times [2023-11-23 08:00:01,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:00:01,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765860817] [2023-11-23 08:00:01,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:00:01,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:00:02,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:00:02,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:00:02,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765860817] [2023-11-23 08:00:02,237 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2023-11-23 08:00:02,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76802741] [2023-11-23 08:00:02,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:00:02,238 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:00:02,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:00:02,240 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 08:00:02,257 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 08:00:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:00:02,679 INFO L262 TraceCheckSpWp]: Trace formula consists of 1962 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-23 08:00:02,685 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:00:02,715 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 08:00:02,715 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 08:00:02,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76802741] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:00:02,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 08:00:02,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-23 08:00:02,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144139193] [2023-11-23 08:00:02,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:00:02,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-23 08:00:02,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:00:02,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-23 08:00:02,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 08:00:02,758 INFO L87 Difference]: Start difference. First operand has 121 states, 72 states have (on average 1.2777777777777777) internal successors, (92), 73 states have internal predecessors, (92), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 08:00:02,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:00:02,880 INFO L93 Difference]: Finished difference Result 238 states and 336 transitions. [2023-11-23 08:00:02,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-23 08:00:02,882 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 50 [2023-11-23 08:00:02,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:00:02,893 INFO L225 Difference]: With dead ends: 238 [2023-11-23 08:00:02,893 INFO L226 Difference]: Without dead ends: 117 [2023-11-23 08:00:02,900 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-23 08:00:02,904 INFO L413 NwaCegarLoop]: 142 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 142 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 08:00:02,909 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 142 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 08:00:02,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2023-11-23 08:00:02,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2023-11-23 08:00:02,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 68 states have (on average 1.2352941176470589) internal successors, (84), 70 states have internal predecessors, (84), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-23 08:00:02,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 150 transitions. [2023-11-23 08:00:02,963 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 150 transitions. Word has length 50 [2023-11-23 08:00:02,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:00:02,964 INFO L495 AbstractCegarLoop]: Abstraction has 117 states and 150 transitions. [2023-11-23 08:00:02,965 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 10.5) internal successors, (21), 2 states have internal predecessors, (21), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-23 08:00:02,965 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 150 transitions. [2023-11-23 08:00:02,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2023-11-23 08:00:02,967 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:00:02,967 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] [2023-11-23 08:00:02,982 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-23 08:00:03,172 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,SelfDestructingSolverStorable0 [2023-11-23 08:00:03,173 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:00:03,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:00:03,173 INFO L85 PathProgramCache]: Analyzing trace with hash 2029367515, now seen corresponding path program 1 times [2023-11-23 08:00:03,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:00:03,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665498922] [2023-11-23 08:00:03,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:00:03,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:00:03,276 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 08:00:03,277 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1923534349] [2023-11-23 08:00:03,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:00:03,277 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:00:03,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:00:03,279 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 08:00:03,282 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 08:00:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:00:03,678 INFO L262 TraceCheckSpWp]: Trace formula consists of 1990 conjuncts, 5 conjunts are in the unsatisfiable core [2023-11-23 08:00:03,681 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:00:03,728 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 08:00:03,729 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-23 08:00:03,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:00:03,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665498922] [2023-11-23 08:00:03,729 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 08:00:03,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923534349] [2023-11-23 08:00:03,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923534349] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-23 08:00:03,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-23 08:00:03,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-11-23 08:00:03,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772072720] [2023-11-23 08:00:03,730 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-23 08:00:03,731 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-23 08:00:03,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:00:03,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-23 08:00:03,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-11-23 08:00:03,732 INFO L87 Difference]: Start difference. First operand 117 states and 150 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 08:00:03,903 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:00:03,903 INFO L93 Difference]: Finished difference Result 223 states and 283 transitions. [2023-11-23 08:00:03,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-23 08:00:03,904 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) Word has length 55 [2023-11-23 08:00:03,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:00:03,906 INFO L225 Difference]: With dead ends: 223 [2023-11-23 08:00:03,906 INFO L226 Difference]: Without dead ends: 118 [2023-11-23 08:00:03,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-11-23 08:00:03,908 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 1 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-23 08:00:03,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 409 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-23 08:00:03,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2023-11-23 08:00:03,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 118. [2023-11-23 08:00:03,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 118 states, 69 states have (on average 1.2318840579710144) internal successors, (85), 71 states have internal predecessors, (85), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-23 08:00:03,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 118 states to 118 states and 151 transitions. [2023-11-23 08:00:03,920 INFO L78 Accepts]: Start accepts. Automaton has 118 states and 151 transitions. Word has length 55 [2023-11-23 08:00:03,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:00:03,921 INFO L495 AbstractCegarLoop]: Abstraction has 118 states and 151 transitions. [2023-11-23 08:00:03,921 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 2 states have call successors, (10), 2 states have call predecessors, (10), 3 states have return successors, (9), 2 states have call predecessors, (9), 2 states have call successors, (9) [2023-11-23 08:00:03,921 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 151 transitions. [2023-11-23 08:00:03,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2023-11-23 08:00:03,923 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:00:03,923 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] [2023-11-23 08:00:03,947 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 08:00:04,146 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,SelfDestructingSolverStorable1 [2023-11-23 08:00:04,147 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:00:04,147 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:00:04,147 INFO L85 PathProgramCache]: Analyzing trace with hash -1021878461, now seen corresponding path program 1 times [2023-11-23 08:00:04,148 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:00:04,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429351565] [2023-11-23 08:00:04,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:00:04,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:00:04,242 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 08:00:04,243 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2023620855] [2023-11-23 08:00:04,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:00:04,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:00:04,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:00:04,244 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 08:00:04,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-23 08:00:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-23 08:00:04,696 INFO L262 TraceCheckSpWp]: Trace formula consists of 2009 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-23 08:00:04,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:00:04,725 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 08:00:04,726 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 08:00:04,831 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 08:00:04,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:00:04,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429351565] [2023-11-23 08:00:04,832 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 08:00:04,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023620855] [2023-11-23 08:00:04,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023620855] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 08:00:04,833 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 08:00:04,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2023-11-23 08:00:04,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771514218] [2023-11-23 08:00:04,834 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 08:00:04,835 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-11-23 08:00:04,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:00:04,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-11-23 08:00:04,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-23 08:00:04,837 INFO L87 Difference]: Start difference. First operand 118 states and 151 transitions. Second operand has 8 states, 6 states have (on average 5.333333333333333) internal successors, (32), 8 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 08:00:05,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:00:05,082 INFO L93 Difference]: Finished difference Result 227 states and 289 transitions. [2023-11-23 08:00:05,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-11-23 08:00:05,083 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 5.333333333333333) internal successors, (32), 8 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 56 [2023-11-23 08:00:05,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:00:05,089 INFO L225 Difference]: With dead ends: 227 [2023-11-23 08:00:05,089 INFO L226 Difference]: Without dead ends: 121 [2023-11-23 08:00:05,090 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2023-11-23 08:00:05,093 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 1 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-23 08:00:05,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 409 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-23 08:00:05,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2023-11-23 08:00:05,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 121. [2023-11-23 08:00:05,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 72 states have (on average 1.2222222222222223) internal successors, (88), 74 states have internal predecessors, (88), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-23 08:00:05,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 154 transitions. [2023-11-23 08:00:05,108 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 154 transitions. Word has length 56 [2023-11-23 08:00:05,110 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:00:05,110 INFO L495 AbstractCegarLoop]: Abstraction has 121 states and 154 transitions. [2023-11-23 08:00:05,111 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 5.333333333333333) internal successors, (32), 8 states have internal predecessors, (32), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 08:00:05,112 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 154 transitions. [2023-11-23 08:00:05,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2023-11-23 08:00:05,118 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:00:05,119 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:00:05,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-23 08:00:05,339 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:00:05,340 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:00:05,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:00:05,341 INFO L85 PathProgramCache]: Analyzing trace with hash -886961445, now seen corresponding path program 2 times [2023-11-23 08:00:05,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:00:05,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110263027] [2023-11-23 08:00:05,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:00:05,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:00:05,430 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 08:00:05,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [302372099] [2023-11-23 08:00:05,431 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-11-23 08:00:05,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:00:05,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:00:05,432 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 08:00:05,448 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-23 08:00:06,036 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-11-23 08:00:06,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 08:00:06,045 INFO L262 TraceCheckSpWp]: Trace formula consists of 2066 conjuncts, 13 conjunts are in the unsatisfiable core [2023-11-23 08:00:06,049 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:00:06,096 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 08:00:06,096 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 08:00:06,264 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 08:00:06,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:00:06,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110263027] [2023-11-23 08:00:06,264 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 08:00:06,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302372099] [2023-11-23 08:00:06,265 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302372099] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 08:00:06,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 08:00:06,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2023-11-23 08:00:06,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790636046] [2023-11-23 08:00:06,265 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 08:00:06,266 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2023-11-23 08:00:06,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:00:06,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2023-11-23 08:00:06,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2023-11-23 08:00:06,268 INFO L87 Difference]: Start difference. First operand 121 states and 154 transitions. Second operand has 14 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 14 states have internal predecessors, (38), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 08:00:06,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:00:06,880 INFO L93 Difference]: Finished difference Result 233 states and 298 transitions. [2023-11-23 08:00:06,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-23 08:00:06,881 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 14 states have internal predecessors, (38), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 59 [2023-11-23 08:00:06,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:00:06,882 INFO L225 Difference]: With dead ends: 233 [2023-11-23 08:00:06,882 INFO L226 Difference]: Without dead ends: 127 [2023-11-23 08:00:06,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=131, Invalid=211, Unknown=0, NotChecked=0, Total=342 [2023-11-23 08:00:06,885 INFO L413 NwaCegarLoop]: 137 mSDtfsCounter, 1 mSDsluCounter, 1220 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1357 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-11-23 08:00:06,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1357 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-11-23 08:00:06,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2023-11-23 08:00:06,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2023-11-23 08:00:06,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 78 states have (on average 1.205128205128205) internal successors, (94), 80 states have internal predecessors, (94), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-23 08:00:06,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 160 transitions. [2023-11-23 08:00:06,908 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 160 transitions. Word has length 59 [2023-11-23 08:00:06,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:00:06,909 INFO L495 AbstractCegarLoop]: Abstraction has 127 states and 160 transitions. [2023-11-23 08:00:06,909 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 14 states have internal predecessors, (38), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 08:00:06,909 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 160 transitions. [2023-11-23 08:00:06,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2023-11-23 08:00:06,912 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:00:06,912 INFO L195 NwaCegarLoop]: trace histogram [10, 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] [2023-11-23 08:00:06,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-23 08:00:07,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:00:07,136 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:00:07,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:00:07,137 INFO L85 PathProgramCache]: Analyzing trace with hash 665465307, now seen corresponding path program 3 times [2023-11-23 08:00:07,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:00:07,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2100208229] [2023-11-23 08:00:07,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:00:07,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:00:07,303 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 08:00:07,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [427425617] [2023-11-23 08:00:07,310 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-11-23 08:00:07,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:00:07,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:00:07,324 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 08:00:07,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-23 08:00:11,925 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-11-23 08:00:11,925 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 08:00:11,940 INFO L262 TraceCheckSpWp]: Trace formula consists of 2180 conjuncts, 28 conjunts are in the unsatisfiable core [2023-11-23 08:00:11,943 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:00:12,100 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 08:00:12,100 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 08:00:12,623 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 08:00:12,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:00:12,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2100208229] [2023-11-23 08:00:12,624 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 08:00:12,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [427425617] [2023-11-23 08:00:12,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [427425617] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 08:00:12,624 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 08:00:12,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 26 [2023-11-23 08:00:12,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802602123] [2023-11-23 08:00:12,624 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 08:00:12,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-11-23 08:00:12,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:00:12,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-11-23 08:00:12,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=457, Unknown=0, NotChecked=0, Total=650 [2023-11-23 08:00:12,626 INFO L87 Difference]: Start difference. First operand 127 states and 160 transitions. Second operand has 26 states, 24 states have (on average 2.0833333333333335) internal successors, (50), 26 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 08:00:14,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:00:14,879 INFO L93 Difference]: Finished difference Result 245 states and 316 transitions. [2023-11-23 08:00:14,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-11-23 08:00:14,881 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 2.0833333333333335) internal successors, (50), 26 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 65 [2023-11-23 08:00:14,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:00:14,882 INFO L225 Difference]: With dead ends: 245 [2023-11-23 08:00:14,882 INFO L226 Difference]: Without dead ends: 139 [2023-11-23 08:00:14,883 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=503, Invalid=903, Unknown=0, NotChecked=0, Total=1406 [2023-11-23 08:00:14,883 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 1 mSDsluCounter, 1610 mSDsCounter, 0 mSdLazyCounter, 338 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1746 SdHoareTripleChecker+Invalid, 346 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-23 08:00:14,883 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1746 Invalid, 346 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 338 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-23 08:00:14,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2023-11-23 08:00:14,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2023-11-23 08:00:14,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 90 states have (on average 1.1777777777777778) internal successors, (106), 92 states have internal predecessors, (106), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-23 08:00:14,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 172 transitions. [2023-11-23 08:00:14,902 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 172 transitions. Word has length 65 [2023-11-23 08:00:14,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:00:14,902 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 172 transitions. [2023-11-23 08:00:14,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 2.0833333333333335) internal successors, (50), 26 states have internal predecessors, (50), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 08:00:14,902 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 172 transitions. [2023-11-23 08:00:14,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2023-11-23 08:00:14,904 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:00:14,904 INFO L195 NwaCegarLoop]: trace histogram [22, 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] [2023-11-23 08:00:14,929 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-23 08:00:15,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:00:15,124 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:00:15,125 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:00:15,125 INFO L85 PathProgramCache]: Analyzing trace with hash -675364901, now seen corresponding path program 4 times [2023-11-23 08:00:15,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:00:15,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [733204395] [2023-11-23 08:00:15,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:00:15,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:00:15,256 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 08:00:15,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1142515131] [2023-11-23 08:00:15,256 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-11-23 08:00:15,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:00:15,257 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:00:15,258 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 08:00:15,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-23 08:00:16,414 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-11-23 08:00:16,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-11-23 08:00:16,430 INFO L262 TraceCheckSpWp]: Trace formula consists of 2408 conjuncts, 50 conjunts are in the unsatisfiable core [2023-11-23 08:00:16,435 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-23 08:00:16,821 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 08:00:16,821 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-23 08:00:18,367 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2023-11-23 08:00:18,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-23 08:00:18,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [733204395] [2023-11-23 08:00:18,368 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-11-23 08:00:18,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142515131] [2023-11-23 08:00:18,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142515131] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-23 08:00:18,369 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-11-23 08:00:18,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 50 [2023-11-23 08:00:18,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [177986728] [2023-11-23 08:00:18,369 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-11-23 08:00:18,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2023-11-23 08:00:18,370 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-23 08:00:18,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2023-11-23 08:00:18,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=664, Invalid=1786, Unknown=0, NotChecked=0, Total=2450 [2023-11-23 08:00:18,372 INFO L87 Difference]: Start difference. First operand 139 states and 172 transitions. Second operand has 50 states, 48 states have (on average 1.5416666666666667) internal successors, (74), 50 states have internal predecessors, (74), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 08:00:56,710 WARN L293 SmtUtils]: Spent 8.71s on a formula simplification. DAG size of input: 138 DAG size of output: 99 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-11-23 08:00:58,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-23 08:00:58,300 INFO L93 Difference]: Finished difference Result 269 states and 352 transitions. [2023-11-23 08:00:58,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2023-11-23 08:00:58,302 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 48 states have (on average 1.5416666666666667) internal successors, (74), 50 states have internal predecessors, (74), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) Word has length 77 [2023-11-23 08:00:58,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-23 08:00:58,304 INFO L225 Difference]: With dead ends: 269 [2023-11-23 08:00:58,304 INFO L226 Difference]: Without dead ends: 163 [2023-11-23 08:00:58,306 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 396 ImplicationChecksByTransitivity, 39.1s TimeCoverageRelationStatistics Valid=1719, Invalid=3683, Unknown=0, NotChecked=0, Total=5402 [2023-11-23 08:00:58,306 INFO L413 NwaCegarLoop]: 136 mSDtfsCounter, 5 mSDsluCounter, 3489 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 3625 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2023-11-23 08:00:58,306 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 3625 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 1049 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2023-11-23 08:00:58,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2023-11-23 08:00:58,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 163. [2023-11-23 08:00:58,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 114 states have (on average 1.1491228070175439) internal successors, (131), 116 states have internal predecessors, (131), 34 states have call successors, (34), 14 states have call predecessors, (34), 14 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-11-23 08:00:58,321 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 197 transitions. [2023-11-23 08:00:58,321 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 197 transitions. Word has length 77 [2023-11-23 08:00:58,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-23 08:00:58,328 INFO L495 AbstractCegarLoop]: Abstraction has 163 states and 197 transitions. [2023-11-23 08:00:58,328 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 48 states have (on average 1.5416666666666667) internal successors, (74), 50 states have internal predecessors, (74), 2 states have call successors, (12), 2 states have call predecessors, (12), 4 states have return successors, (12), 2 states have call predecessors, (12), 2 states have call successors, (12) [2023-11-23 08:00:58,329 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 197 transitions. [2023-11-23 08:00:58,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-11-23 08:00:58,330 INFO L187 NwaCegarLoop]: Found error trace [2023-11-23 08:00:58,330 INFO L195 NwaCegarLoop]: trace histogram [40, 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] [2023-11-23 08:00:58,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-23 08:00:58,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:00:58,531 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-23 08:00:58,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-23 08:00:58,531 INFO L85 PathProgramCache]: Analyzing trace with hash -327666469, now seen corresponding path program 5 times [2023-11-23 08:00:58,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-23 08:00:58,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880097036] [2023-11-23 08:00:58,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-23 08:00:58,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-23 08:00:58,666 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-11-23 08:00:58,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [87660606] [2023-11-23 08:00:58,667 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-11-23 08:00:58,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-23 08:00:58,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-11-23 08:00:58,668 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-23 08:00:58,670 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process Killed by 15