./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 35987657 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 --- Real Ultimate output --- This is Ultimate 0.2.2-?-3598765 [2022-07-21 09:27:06,654 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-21 09:27:06,659 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-21 09:27:06,682 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-21 09:27:06,685 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-21 09:27:06,686 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-21 09:27:06,692 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-21 09:27:06,694 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-21 09:27:06,699 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-21 09:27:06,705 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-21 09:27:06,706 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-21 09:27:06,710 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-21 09:27:06,710 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-21 09:27:06,712 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-21 09:27:06,713 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-21 09:27:06,715 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-21 09:27:06,716 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-21 09:27:06,717 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-21 09:27:06,720 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-21 09:27:06,721 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-21 09:27:06,724 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-21 09:27:06,725 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-21 09:27:06,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-21 09:27:06,726 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-21 09:27:06,727 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-21 09:27:06,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-21 09:27:06,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-21 09:27:06,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-21 09:27:06,731 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-21 09:27:06,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-21 09:27:06,732 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-21 09:27:06,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-21 09:27:06,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-21 09:27:06,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-21 09:27:06,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-21 09:27:06,735 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-21 09:27:06,736 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-21 09:27:06,736 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-21 09:27:06,736 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-21 09:27:06,736 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-21 09:27:06,737 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-21 09:27:06,738 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-21 09:27:06,739 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-21 09:27:06,758 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-21 09:27:06,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-21 09:27:06,759 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-21 09:27:06,759 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-21 09:27:06,759 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-21 09:27:06,760 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-21 09:27:06,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-21 09:27:06,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-21 09:27:06,760 INFO L138 SettingsManager]: * Use SBE=true [2022-07-21 09:27:06,761 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-21 09:27:06,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-21 09:27:06,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-21 09:27:06,761 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-21 09:27:06,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-21 09:27:06,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-21 09:27:06,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-21 09:27:06,762 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-21 09:27:06,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-21 09:27:06,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-21 09:27:06,762 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-21 09:27:06,763 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-21 09:27:06,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:27:06,763 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-21 09:27:06,763 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-21 09:27:06,763 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-21 09:27:06,763 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-21 09:27:06,763 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-21 09:27:06,764 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-21 09:27:06,764 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-21 09:27:06,764 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-21 09:27:06,764 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6f838ff631dd7d907eee223e4bc065b6ce71a3dd1969d0a88cef9ccdcf3b54d1 [2022-07-21 09:27:07,004 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-21 09:27:07,022 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-21 09:27:07,025 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-21 09:27:07,026 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-21 09:27:07,026 INFO L275 PluginConnector]: CDTParser initialized [2022-07-21 09:27:07,027 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2022-07-21 09:27:07,077 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f001cae0/e0f32a43d81241ab99c80703ea433abd/FLAG32d0de76f [2022-07-21 09:27:07,601 INFO L306 CDTParser]: Found 1 translation units. [2022-07-21 09:27:07,601 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i [2022-07-21 09:27:07,628 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f001cae0/e0f32a43d81241ab99c80703ea433abd/FLAG32d0de76f [2022-07-21 09:27:08,106 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f001cae0/e0f32a43d81241ab99c80703ea433abd [2022-07-21 09:27:08,108 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-21 09:27:08,109 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-21 09:27:08,110 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-21 09:27:08,110 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-21 09:27:08,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-21 09:27:08,113 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:27:08" (1/1) ... [2022-07-21 09:27:08,114 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18503d40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:27:08, skipping insertion in model container [2022-07-21 09:27:08,114 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 09:27:08" (1/1) ... [2022-07-21 09:27:08,119 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-21 09:27:08,203 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-21 09:27:08,435 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2022-07-21 09:27:08,441 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2022-07-21 09:27:08,924 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-21 09:27:08,959 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:08,959 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:08,960 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:08,960 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:08,961 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:08,968 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:08,971 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:08,973 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:08,974 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:08,975 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:08,977 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:08,979 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:08,979 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:09,135 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-21 09:27:09,136 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-21 09:27:09,136 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-21 09:27:09,145 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-21 09:27:09,146 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-21 09:27:09,147 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-21 09:27:09,147 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-21 09:27:09,148 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-21 09:27:09,148 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-21 09:27:09,149 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-21 09:27:09,217 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:09,217 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:09,221 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:09,225 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:09,267 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:27:09,292 INFO L203 MainTranslator]: Completed pre-run [2022-07-21 09:27:09,301 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4493,4506] [2022-07-21 09:27:09,302 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_swap_harness.i[4553,4566] [2022-07-21 09:27:09,323 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-21 09:27:09,332 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:09,333 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:09,333 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:09,333 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:09,334 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:09,351 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:09,353 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:09,354 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:09,355 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:09,356 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:09,361 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:09,361 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:09,362 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:09,412 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-21 09:27:09,413 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-21 09:27:09,413 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-21 09:27:09,414 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-21 09:27:09,415 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-21 09:27:09,415 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-21 09:27:09,415 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-21 09:27:09,431 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-21 09:27:09,432 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-21 09:27:09,432 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-21 09:27:09,466 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:09,467 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:09,469 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:09,473 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-21 09:27:09,495 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-21 09:27:09,741 INFO L208 MainTranslator]: Completed translation [2022-07-21 09:27:09,741 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:27:09 WrapperNode [2022-07-21 09:27:09,742 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-21 09:27:09,742 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-21 09:27:09,742 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-21 09:27:09,743 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-21 09:27:09,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:27:09" (1/1) ... [2022-07-21 09:27:09,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:27:09" (1/1) ... [2022-07-21 09:27:09,873 INFO L137 Inliner]: procedures = 691, calls = 1682, calls flagged for inlining = 52, calls inlined = 8, statements flattened = 649 [2022-07-21 09:27:09,874 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-21 09:27:09,875 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-21 09:27:09,875 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-21 09:27:09,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-21 09:27:09,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:27:09" (1/1) ... [2022-07-21 09:27:09,881 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:27:09" (1/1) ... [2022-07-21 09:27:09,887 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:27:09" (1/1) ... [2022-07-21 09:27:09,887 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:27:09" (1/1) ... [2022-07-21 09:27:09,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:27:09" (1/1) ... [2022-07-21 09:27:09,926 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:27:09" (1/1) ... [2022-07-21 09:27:09,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:27:09" (1/1) ... [2022-07-21 09:27:09,967 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-21 09:27:09,968 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-21 09:27:09,968 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-21 09:27:09,968 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-21 09:27:09,969 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:27:09" (1/1) ... [2022-07-21 09:27:09,981 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-21 09:27:09,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:27:10,001 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) [2022-07-21 09:27:10,023 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 [2022-07-21 09:27:10,036 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-21 09:27:10,037 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-07-21 09:27:10,037 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-07-21 09:27:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-07-21 09:27:10,038 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-07-21 09:27:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-21 09:27:10,038 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-21 09:27:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-21 09:27:10,038 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-07-21 09:27:10,039 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-07-21 09:27:10,039 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-21 09:27:10,039 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-21 09:27:10,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-21 09:27:10,039 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-21 09:27:10,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-21 09:27:10,040 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-07-21 09:27:10,040 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-07-21 09:27:10,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-21 09:27:10,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-21 09:27:10,041 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-21 09:27:10,041 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-21 09:27:10,041 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-07-21 09:27:10,041 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-07-21 09:27:10,041 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_length [2022-07-21 09:27:10,041 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_length [2022-07-21 09:27:10,041 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-21 09:27:10,042 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-21 09:27:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-07-21 09:27:10,042 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-07-21 09:27:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-21 09:27:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-21 09:27:10,042 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-21 09:27:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_get_at_ptr [2022-07-21 09:27:10,043 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_get_at_ptr [2022-07-21 09:27:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-21 09:27:10,043 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-21 09:27:10,043 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-07-21 09:27:10,043 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-07-21 09:27:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-21 09:27:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-07-21 09:27:10,044 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-07-21 09:27:10,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-21 09:27:10,327 INFO L234 CfgBuilder]: Building ICFG [2022-07-21 09:27:10,329 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-21 09:27:10,904 INFO L275 CfgBuilder]: Performing block encoding [2022-07-21 09:27:10,911 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-21 09:27:10,911 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-07-21 09:27:10,913 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:27:10 BoogieIcfgContainer [2022-07-21 09:27:10,913 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-21 09:27:10,915 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-21 09:27:10,915 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-21 09:27:10,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-21 09:27:10,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 09:27:08" (1/3) ... [2022-07-21 09:27:10,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b2c128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:27:10, skipping insertion in model container [2022-07-21 09:27:10,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 09:27:09" (2/3) ... [2022-07-21 09:27:10,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b2c128 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 09:27:10, skipping insertion in model container [2022-07-21 09:27:10,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 09:27:10" (3/3) ... [2022-07-21 09:27:10,920 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_swap_harness.i [2022-07-21 09:27:10,932 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-21 09:27:10,933 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-21 09:27:10,989 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-21 09:27:10,993 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=LoopsAndPotentialCycles, 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=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@1c2e375d, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@8aafcd4 [2022-07-21 09:27:10,994 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-21 09:27:11,012 INFO L276 IsEmpty]: Start isEmpty. Operand has 180 states, 102 states have (on average 1.1666666666666667) internal successors, (119), 103 states have internal predecessors, (119), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) [2022-07-21 09:27:11,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-21 09:27:11,020 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:27:11,020 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:27:11,021 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:27:11,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:27:11,025 INFO L85 PathProgramCache]: Analyzing trace with hash 223694820, now seen corresponding path program 1 times [2022-07-21 09:27:11,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:27:11,031 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165723058] [2022-07-21 09:27:11,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:27:11,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:27:11,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:11,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:27:11,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:11,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:27:11,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:11,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:27:11,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:11,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:27:11,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:11,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-21 09:27:11,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:11,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 09:27:11,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:11,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 09:27:11,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:11,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 09:27:11,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:11,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 09:27:11,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:11,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 09:27:11,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:11,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 09:27:11,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:11,604 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-07-21 09:27:11,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:27:11,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165723058] [2022-07-21 09:27:11,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165723058] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:27:11,606 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:27:11,606 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 09:27:11,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1151330796] [2022-07-21 09:27:11,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:27:11,613 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 09:27:11,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:27:11,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 09:27:11,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-21 09:27:11,643 INFO L87 Difference]: Start difference. First operand has 180 states, 102 states have (on average 1.1666666666666667) internal successors, (119), 103 states have internal predecessors, (119), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (61), 61 states have call predecessors, (61), 61 states have call successors, (61) Second operand has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 09:27:12,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:27:12,280 INFO L93 Difference]: Finished difference Result 380 states and 580 transitions. [2022-07-21 09:27:12,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-07-21 09:27:12,283 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) Word has length 69 [2022-07-21 09:27:12,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:27:12,291 INFO L225 Difference]: With dead ends: 380 [2022-07-21 09:27:12,291 INFO L226 Difference]: Without dead ends: 202 [2022-07-21 09:27:12,303 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-07-21 09:27:12,306 INFO L413 NwaCegarLoop]: 227 mSDtfsCounter, 50 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 63 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 297 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-07-21 09:27:12,307 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [63 Valid, 332 Invalid, 297 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 222 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-07-21 09:27:12,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2022-07-21 09:27:12,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 175. [2022-07-21 09:27:12,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 98 states have (on average 1.1428571428571428) internal successors, (112), 99 states have internal predecessors, (112), 61 states have call successors, (61), 15 states have call predecessors, (61), 15 states have return successors, (60), 60 states have call predecessors, (60), 60 states have call successors, (60) [2022-07-21 09:27:12,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 233 transitions. [2022-07-21 09:27:12,359 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 233 transitions. Word has length 69 [2022-07-21 09:27:12,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:27:12,359 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 233 transitions. [2022-07-21 09:27:12,360 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.75) internal successors, (27), 2 states have internal predecessors, (27), 2 states have call successors, (13), 4 states have call predecessors, (13), 2 states have return successors, (11), 2 states have call predecessors, (11), 2 states have call successors, (11) [2022-07-21 09:27:12,360 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 233 transitions. [2022-07-21 09:27:12,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2022-07-21 09:27:12,362 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:27:12,362 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:27:12,363 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-07-21 09:27:12,363 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:27:12,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:27:12,363 INFO L85 PathProgramCache]: Analyzing trace with hash -636522710, now seen corresponding path program 1 times [2022-07-21 09:27:12,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:27:12,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [963618440] [2022-07-21 09:27:12,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:27:12,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:27:12,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:12,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-21 09:27:12,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:12,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-21 09:27:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:12,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-21 09:27:12,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:12,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-21 09:27:12,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:12,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-21 09:27:12,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:12,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-21 09:27:12,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:12,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-21 09:27:12,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:12,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-07-21 09:27:12,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:12,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2022-07-21 09:27:12,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:12,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-07-21 09:27:12,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:12,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2022-07-21 09:27:12,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:12,602 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2022-07-21 09:27:12,602 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:27:12,602 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [963618440] [2022-07-21 09:27:12,602 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [963618440] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:27:12,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476838680] [2022-07-21 09:27:12,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:27:12,603 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:27:12,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:27:12,605 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) [2022-07-21 09:27:12,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-21 09:27:12,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:12,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 1999 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-21 09:27:12,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:27:13,032 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-07-21 09:27:13,032 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:27:13,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476838680] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:27:13,033 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:27:13,033 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2022-07-21 09:27:13,033 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871681535] [2022-07-21 09:27:13,033 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:27:13,034 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-21 09:27:13,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:27:13,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-21 09:27:13,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-21 09:27:13,035 INFO L87 Difference]: Start difference. First operand 175 states and 233 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-21 09:27:13,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:27:13,300 INFO L93 Difference]: Finished difference Result 315 states and 432 transitions. [2022-07-21 09:27:13,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 09:27:13,301 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 69 [2022-07-21 09:27:13,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:27:13,306 INFO L225 Difference]: With dead ends: 315 [2022-07-21 09:27:13,306 INFO L226 Difference]: Without dead ends: 177 [2022-07-21 09:27:13,307 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-07-21 09:27:13,308 INFO L413 NwaCegarLoop]: 178 mSDtfsCounter, 232 mSDsluCounter, 469 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 242 SdHoareTripleChecker+Valid, 647 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 09:27:13,310 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [242 Valid, 647 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 09:27:13,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2022-07-21 09:27:13,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2022-07-21 09:27:13,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 99 states have (on average 1.1414141414141414) internal successors, (113), 101 states have internal predecessors, (113), 61 states have call successors, (61), 15 states have call predecessors, (61), 16 states have return successors, (68), 60 states have call predecessors, (68), 60 states have call successors, (68) [2022-07-21 09:27:13,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 242 transitions. [2022-07-21 09:27:13,339 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 242 transitions. Word has length 69 [2022-07-21 09:27:13,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:27:13,339 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 242 transitions. [2022-07-21 09:27:13,340 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 6 states have internal predecessors, (33), 3 states have call successors, (13), 2 states have call predecessors, (13), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2022-07-21 09:27:13,340 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 242 transitions. [2022-07-21 09:27:13,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-07-21 09:27:13,344 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:27:13,344 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:27:13,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-21 09:27:13,559 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:27:13,559 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:27:13,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:27:13,560 INFO L85 PathProgramCache]: Analyzing trace with hash -164009474, now seen corresponding path program 1 times [2022-07-21 09:27:13,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:27:13,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [76336456] [2022-07-21 09:27:13,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:27:13,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:27:13,621 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:27:13,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1063570853] [2022-07-21 09:27:13,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:27:13,622 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:27:13,622 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:27:13,624 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) [2022-07-21 09:27:13,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-21 09:27:13,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:13,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 2140 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-21 09:27:13,971 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:27:14,047 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-21 09:27:14,047 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:27:14,047 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:27:14,047 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [76336456] [2022-07-21 09:27:14,048 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:27:14,048 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063570853] [2022-07-21 09:27:14,048 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063570853] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:27:14,048 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:27:14,048 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-07-21 09:27:14,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155509322] [2022-07-21 09:27:14,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:27:14,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-07-21 09:27:14,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:27:14,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-07-21 09:27:14,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-07-21 09:27:14,051 INFO L87 Difference]: Start difference. First operand 177 states and 242 transitions. Second operand has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2022-07-21 09:27:14,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:27:14,369 INFO L93 Difference]: Finished difference Result 326 states and 455 transitions. [2022-07-21 09:27:14,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-07-21 09:27:14,369 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) Word has length 84 [2022-07-21 09:27:14,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:27:14,371 INFO L225 Difference]: With dead ends: 326 [2022-07-21 09:27:14,371 INFO L226 Difference]: Without dead ends: 189 [2022-07-21 09:27:14,372 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2022-07-21 09:27:14,372 INFO L413 NwaCegarLoop]: 175 mSDtfsCounter, 250 mSDsluCounter, 793 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 260 SdHoareTripleChecker+Valid, 968 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-21 09:27:14,372 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [260 Valid, 968 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-21 09:27:14,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-07-21 09:27:14,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 189. [2022-07-21 09:27:14,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 105 states have (on average 1.1428571428571428) internal successors, (120), 107 states have internal predecessors, (120), 66 states have call successors, (66), 16 states have call predecessors, (66), 17 states have return successors, (73), 65 states have call predecessors, (73), 65 states have call successors, (73) [2022-07-21 09:27:14,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 259 transitions. [2022-07-21 09:27:14,384 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 259 transitions. Word has length 84 [2022-07-21 09:27:14,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:27:14,384 INFO L495 AbstractCegarLoop]: Abstraction has 189 states and 259 transitions. [2022-07-21 09:27:14,384 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.875) internal successors, (47), 7 states have internal predecessors, (47), 4 states have call successors, (15), 3 states have call predecessors, (15), 3 states have return successors, (13), 4 states have call predecessors, (13), 4 states have call successors, (13) [2022-07-21 09:27:14,384 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 259 transitions. [2022-07-21 09:27:14,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-21 09:27:14,385 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:27:14,385 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:27:14,408 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-21 09:27:14,599 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,SelfDestructingSolverStorable2 [2022-07-21 09:27:14,600 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:27:14,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:27:14,600 INFO L85 PathProgramCache]: Analyzing trace with hash 1494755288, now seen corresponding path program 1 times [2022-07-21 09:27:14,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:27:14,600 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132847222] [2022-07-21 09:27:14,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:27:14,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:27:14,661 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:27:14,662 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1471855786] [2022-07-21 09:27:14,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:27:14,662 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:27:14,662 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:27:14,663 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) [2022-07-21 09:27:14,664 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-21 09:27:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:27:15,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 2422 conjuncts, 252 conjunts are in the unsatisfiable core [2022-07-21 09:27:15,079 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:27:15,100 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 09:27:15,198 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-07-21 09:27:16,097 INFO L356 Elim1Store]: treesize reduction 53, result has 32.9 percent of original size [2022-07-21 09:27:16,097 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 53 [2022-07-21 09:27:16,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:27:16,111 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 25 treesize of output 28 [2022-07-21 09:27:18,138 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_200 Int)) (= (store |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base| (store (select |c_old(#memory_int)| |c_aws_mul_size_checked_#in~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_200)) |c_#memory_int|)) is different from true [2022-07-21 09:27:18,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:27:19,502 INFO L356 Elim1Store]: treesize reduction 12, result has 62.5 percent of original size [2022-07-21 09:27:19,502 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 60 treesize of output 68 [2022-07-21 09:27:19,515 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-21 09:27:19,515 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 11 treesize of output 11 [2022-07-21 09:27:35,904 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 09:27:35,904 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 156 treesize of output 88 [2022-07-21 09:27:36,391 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 26 proven. 59 refuted. 0 times theorem prover too weak. 6 trivial. 6 not checked. [2022-07-21 09:27:36,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:27:52,658 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:27:52,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132847222] [2022-07-21 09:27:52,659 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:27:52,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1471855786] [2022-07-21 09:27:52,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1471855786] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:27:52,659 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:27:52,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [51] total 51 [2022-07-21 09:27:52,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543998606] [2022-07-21 09:27:52,659 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-21 09:27:52,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-07-21 09:27:52,660 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:27:52,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-07-21 09:27:52,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=2675, Unknown=5, NotChecked=104, Total=2970 [2022-07-21 09:27:52,662 INFO L87 Difference]: Start difference. First operand 189 states and 259 transitions. Second operand has 51 states, 43 states have (on average 1.744186046511628) internal successors, (75), 38 states have internal predecessors, (75), 15 states have call successors, (19), 10 states have call predecessors, (19), 13 states have return successors, (17), 14 states have call predecessors, (17), 13 states have call successors, (17) [2022-07-21 09:28:12,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:28:12,599 INFO L93 Difference]: Finished difference Result 267 states and 368 transitions. [2022-07-21 09:28:12,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-07-21 09:28:12,599 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 43 states have (on average 1.744186046511628) internal successors, (75), 38 states have internal predecessors, (75), 15 states have call successors, (19), 10 states have call predecessors, (19), 13 states have return successors, (17), 14 states have call predecessors, (17), 13 states have call successors, (17) Word has length 114 [2022-07-21 09:28:12,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:28:12,601 INFO L225 Difference]: With dead ends: 267 [2022-07-21 09:28:12,601 INFO L226 Difference]: Without dead ends: 265 [2022-07-21 09:28:12,603 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 63 SyntacticMatches, 5 SemanticMatches, 71 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 1496 ImplicationChecksByTransitivity, 36.4s TimeCoverageRelationStatistics Valid=318, Invalid=4789, Unknown=9, NotChecked=140, Total=5256 [2022-07-21 09:28:12,603 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 119 mSDsluCounter, 2547 mSDsCounter, 0 mSdLazyCounter, 1756 mSolverCounterSat, 147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 127 SdHoareTripleChecker+Valid, 2752 SdHoareTripleChecker+Invalid, 5632 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 147 IncrementalHoareTripleChecker+Valid, 1756 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 3729 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-21 09:28:12,603 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [127 Valid, 2752 Invalid, 5632 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [147 Valid, 1756 Invalid, 0 Unknown, 3729 Unchecked, 1.4s Time] [2022-07-21 09:28:12,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2022-07-21 09:28:12,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 251. [2022-07-21 09:28:12,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 251 states, 146 states have (on average 1.1506849315068493) internal successors, (168), 152 states have internal predecessors, (168), 76 states have call successors, (76), 24 states have call predecessors, (76), 28 states have return successors, (100), 74 states have call predecessors, (100), 75 states have call successors, (100) [2022-07-21 09:28:12,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 344 transitions. [2022-07-21 09:28:12,628 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 344 transitions. Word has length 114 [2022-07-21 09:28:12,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:28:12,628 INFO L495 AbstractCegarLoop]: Abstraction has 251 states and 344 transitions. [2022-07-21 09:28:12,628 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 43 states have (on average 1.744186046511628) internal successors, (75), 38 states have internal predecessors, (75), 15 states have call successors, (19), 10 states have call predecessors, (19), 13 states have return successors, (17), 14 states have call predecessors, (17), 13 states have call successors, (17) [2022-07-21 09:28:12,629 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 344 transitions. [2022-07-21 09:28:12,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-21 09:28:12,630 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:28:12,630 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:28:12,652 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-21 09:28:12,842 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:28:12,842 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:28:12,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:28:12,843 INFO L85 PathProgramCache]: Analyzing trace with hash 1101728278, now seen corresponding path program 1 times [2022-07-21 09:28:12,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:28:12,843 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423522188] [2022-07-21 09:28:12,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:28:12,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:28:12,908 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:28:12,908 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [95921969] [2022-07-21 09:28:12,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:28:12,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:28:12,909 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:28:12,910 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) [2022-07-21 09:28:12,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-21 09:28:13,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:28:13,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 2417 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-21 09:28:13,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:28:13,296 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-07-21 09:28:13,297 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:28:13,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:28:13,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423522188] [2022-07-21 09:28:13,297 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:28:13,297 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [95921969] [2022-07-21 09:28:13,297 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [95921969] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:28:13,297 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:28:13,298 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-21 09:28:13,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078551205] [2022-07-21 09:28:13,298 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:28:13,298 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-21 09:28:13,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:28:13,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-21 09:28:13,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-21 09:28:13,299 INFO L87 Difference]: Start difference. First operand 251 states and 344 transitions. Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-21 09:28:13,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:28:13,328 INFO L93 Difference]: Finished difference Result 435 states and 628 transitions. [2022-07-21 09:28:13,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-21 09:28:13,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) Word has length 114 [2022-07-21 09:28:13,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:28:13,333 INFO L225 Difference]: With dead ends: 435 [2022-07-21 09:28:13,333 INFO L226 Difference]: Without dead ends: 256 [2022-07-21 09:28:13,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-21 09:28:13,338 INFO L413 NwaCegarLoop]: 237 mSDtfsCounter, 7 mSDsluCounter, 454 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-21 09:28:13,338 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 691 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-21 09:28:13,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2022-07-21 09:28:13,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 253. [2022-07-21 09:28:13,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 253 states, 148 states have (on average 1.1486486486486487) internal successors, (170), 154 states have internal predecessors, (170), 76 states have call successors, (76), 24 states have call predecessors, (76), 28 states have return successors, (100), 74 states have call predecessors, (100), 75 states have call successors, (100) [2022-07-21 09:28:13,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 346 transitions. [2022-07-21 09:28:13,362 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 346 transitions. Word has length 114 [2022-07-21 09:28:13,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:28:13,362 INFO L495 AbstractCegarLoop]: Abstraction has 253 states and 346 transitions. [2022-07-21 09:28:13,363 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (13), 2 states have call predecessors, (13), 1 states have call successors, (13) [2022-07-21 09:28:13,363 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 346 transitions. [2022-07-21 09:28:13,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-21 09:28:13,365 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:28:13,365 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:28:13,387 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-21 09:28:13,575 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:28:13,576 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:28:13,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:28:13,576 INFO L85 PathProgramCache]: Analyzing trace with hash 79756809, now seen corresponding path program 1 times [2022-07-21 09:28:13,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:28:13,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612339090] [2022-07-21 09:28:13,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:28:13,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:28:13,639 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:28:13,639 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1934991093] [2022-07-21 09:28:13,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:28:13,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:28:13,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:28:13,640 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) [2022-07-21 09:28:13,641 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-21 09:28:13,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:28:13,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 2461 conjuncts, 63 conjunts are in the unsatisfiable core [2022-07-21 09:28:13,980 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:28:14,004 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 09:28:14,120 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-21 09:28:14,149 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 15 [2022-07-21 09:28:18,221 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-07-21 09:28:18,222 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 45 treesize of output 32 [2022-07-21 09:28:18,266 INFO L356 Elim1Store]: treesize reduction 30, result has 34.8 percent of original size [2022-07-21 09:28:18,266 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 29 treesize of output 33 [2022-07-21 09:28:18,385 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_427 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_427))) is different from true [2022-07-21 09:28:26,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:28:26,611 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 62 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-07-21 09:28:26,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:28:26,771 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:28:26,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612339090] [2022-07-21 09:28:26,772 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:28:26,772 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934991093] [2022-07-21 09:28:26,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934991093] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:28:26,772 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:28:26,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22] total 22 [2022-07-21 09:28:26,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130232638] [2022-07-21 09:28:26,772 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-21 09:28:26,772 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-07-21 09:28:26,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:28:26,773 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-07-21 09:28:26,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=387, Unknown=18, NotChecked=40, Total=506 [2022-07-21 09:28:26,773 INFO L87 Difference]: Start difference. First operand 253 states and 346 transitions. Second operand has 22 states, 20 states have (on average 3.1) internal successors, (62), 18 states have internal predecessors, (62), 8 states have call successors, (18), 7 states have call predecessors, (18), 8 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-07-21 09:28:31,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:28:31,663 INFO L93 Difference]: Finished difference Result 505 states and 749 transitions. [2022-07-21 09:28:31,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-21 09:28:31,663 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 20 states have (on average 3.1) internal successors, (62), 18 states have internal predecessors, (62), 8 states have call successors, (18), 7 states have call predecessors, (18), 8 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) Word has length 120 [2022-07-21 09:28:31,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:28:31,665 INFO L225 Difference]: With dead ends: 505 [2022-07-21 09:28:31,665 INFO L226 Difference]: Without dead ends: 324 [2022-07-21 09:28:31,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 160 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 16.5s TimeCoverageRelationStatistics Valid=86, Invalid=591, Unknown=29, NotChecked=50, Total=756 [2022-07-21 09:28:31,667 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 144 mSDsluCounter, 1168 mSDsCounter, 0 mSdLazyCounter, 924 mSolverCounterSat, 190 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 163 SdHoareTripleChecker+Valid, 1396 SdHoareTripleChecker+Invalid, 3203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 190 IncrementalHoareTripleChecker+Valid, 924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 2089 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 09:28:31,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [163 Valid, 1396 Invalid, 3203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [190 Valid, 924 Invalid, 0 Unknown, 2089 Unchecked, 0.7s Time] [2022-07-21 09:28:31,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2022-07-21 09:28:31,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 264. [2022-07-21 09:28:31,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 156 states have (on average 1.1538461538461537) internal successors, (180), 163 states have internal predecessors, (180), 77 states have call successors, (77), 24 states have call predecessors, (77), 30 states have return successors, (104), 76 states have call predecessors, (104), 76 states have call successors, (104) [2022-07-21 09:28:31,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 361 transitions. [2022-07-21 09:28:31,685 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 361 transitions. Word has length 120 [2022-07-21 09:28:31,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:28:31,686 INFO L495 AbstractCegarLoop]: Abstraction has 264 states and 361 transitions. [2022-07-21 09:28:31,686 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 20 states have (on average 3.1) internal successors, (62), 18 states have internal predecessors, (62), 8 states have call successors, (18), 7 states have call predecessors, (18), 8 states have return successors, (16), 8 states have call predecessors, (16), 8 states have call successors, (16) [2022-07-21 09:28:31,686 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 361 transitions. [2022-07-21 09:28:31,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-21 09:28:31,689 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:28:31,689 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:28:31,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-21 09:28:31,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:28:31,895 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:28:31,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:28:31,896 INFO L85 PathProgramCache]: Analyzing trace with hash -1017548743, now seen corresponding path program 1 times [2022-07-21 09:28:31,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:28:31,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991193599] [2022-07-21 09:28:31,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:28:31,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:28:31,965 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:28:31,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1654207743] [2022-07-21 09:28:31,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:28:31,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:28:31,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:28:31,967 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) [2022-07-21 09:28:31,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-21 09:28:32,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:28:32,313 INFO L263 TraceCheckSpWp]: Trace formula consists of 2426 conjuncts, 31 conjunts are in the unsatisfiable core [2022-07-21 09:28:32,316 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:28:32,403 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 66 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-07-21 09:28:32,404 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:28:32,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:28:32,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991193599] [2022-07-21 09:28:32,404 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:28:32,404 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1654207743] [2022-07-21 09:28:32,404 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1654207743] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:28:32,405 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:28:32,405 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-07-21 09:28:32,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680156318] [2022-07-21 09:28:32,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:28:32,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-07-21 09:28:32,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:28:32,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-07-21 09:28:32,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=133, Unknown=0, NotChecked=0, Total=156 [2022-07-21 09:28:32,406 INFO L87 Difference]: Start difference. First operand 264 states and 361 transitions. Second operand has 13 states, 11 states have (on average 6.181818181818182) internal successors, (68), 10 states have internal predecessors, (68), 4 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2022-07-21 09:28:32,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:28:32,672 INFO L93 Difference]: Finished difference Result 462 states and 663 transitions. [2022-07-21 09:28:32,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-21 09:28:32,672 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 11 states have (on average 6.181818181818182) internal successors, (68), 10 states have internal predecessors, (68), 4 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) Word has length 120 [2022-07-21 09:28:32,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:28:32,674 INFO L225 Difference]: With dead ends: 462 [2022-07-21 09:28:32,674 INFO L226 Difference]: Without dead ends: 273 [2022-07-21 09:28:32,675 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2022-07-21 09:28:32,675 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 12 mSDsluCounter, 2460 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 2694 SdHoareTripleChecker+Invalid, 405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 09:28:32,675 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 2694 Invalid, 405 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 09:28:32,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2022-07-21 09:28:32,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 269. [2022-07-21 09:28:32,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 269 states, 161 states have (on average 1.1490683229813665) internal successors, (185), 168 states have internal predecessors, (185), 77 states have call successors, (77), 24 states have call predecessors, (77), 30 states have return successors, (115), 76 states have call predecessors, (115), 76 states have call successors, (115) [2022-07-21 09:28:32,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 269 states to 269 states and 377 transitions. [2022-07-21 09:28:32,691 INFO L78 Accepts]: Start accepts. Automaton has 269 states and 377 transitions. Word has length 120 [2022-07-21 09:28:32,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:28:32,692 INFO L495 AbstractCegarLoop]: Abstraction has 269 states and 377 transitions. [2022-07-21 09:28:32,692 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 11 states have (on average 6.181818181818182) internal successors, (68), 10 states have internal predecessors, (68), 4 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (17), 5 states have call predecessors, (17), 4 states have call successors, (17) [2022-07-21 09:28:32,692 INFO L276 IsEmpty]: Start isEmpty. Operand 269 states and 377 transitions. [2022-07-21 09:28:32,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-21 09:28:32,693 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:28:32,693 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:28:32,716 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-21 09:28:32,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:28:32,911 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:28:32,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:28:32,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1134333490, now seen corresponding path program 1 times [2022-07-21 09:28:32,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:28:32,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679337569] [2022-07-21 09:28:32,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:28:32,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:28:32,979 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:28:32,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2129129425] [2022-07-21 09:28:32,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:28:32,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:28:32,980 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:28:32,981 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) [2022-07-21 09:28:32,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-21 09:28:33,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:28:33,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 2427 conjuncts, 74 conjunts are in the unsatisfiable core [2022-07-21 09:28:33,344 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:28:35,680 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_615 Int) (v_ArrVal_614 Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_614))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_615))))) is different from true [2022-07-21 09:29:10,606 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 83 proven. 3 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-07-21 09:29:10,607 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:29:12,800 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_631 Int) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_35| Int)) (= (select (select (store |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_35| (store (select |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_35|) 0 v_ArrVal_631)) c_aws_array_list_length_~list.base) (+ 32 c_aws_array_list_length_~list.offset)) 0)) (forall ((v_ArrVal_630 Int) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_35| Int)) (= (select (select (store |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_35| (store (select |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_35|) 0 v_ArrVal_630)) c_aws_array_list_length_~list.base) (+ 32 c_aws_array_list_length_~list.offset)) 0))) is different from false [2022-07-21 09:29:12,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:29:12,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679337569] [2022-07-21 09:29:12,802 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:29:12,802 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2129129425] [2022-07-21 09:29:12,802 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2129129425] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:29:12,802 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:29:12,802 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2022-07-21 09:29:12,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371911366] [2022-07-21 09:29:12,802 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-21 09:29:12,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-07-21 09:29:12,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:29:12,803 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-07-21 09:29:12,803 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=286, Unknown=12, NotChecked=70, Total=420 [2022-07-21 09:29:12,803 INFO L87 Difference]: Start difference. First operand 269 states and 377 transitions. Second operand has 20 states, 19 states have (on average 3.789473684210526) internal successors, (72), 18 states have internal predecessors, (72), 8 states have call successors, (19), 5 states have call predecessors, (19), 6 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) [2022-07-21 09:29:44,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:29:44,265 INFO L93 Difference]: Finished difference Result 569 states and 884 transitions. [2022-07-21 09:29:44,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-07-21 09:29:44,266 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 3.789473684210526) internal successors, (72), 18 states have internal predecessors, (72), 8 states have call successors, (19), 5 states have call predecessors, (19), 6 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) Word has length 116 [2022-07-21 09:29:44,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:29:44,268 INFO L225 Difference]: With dead ends: 569 [2022-07-21 09:29:44,268 INFO L226 Difference]: Without dead ends: 368 [2022-07-21 09:29:44,269 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 125 SyntacticMatches, 3 SemanticMatches, 29 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 69.3s TimeCoverageRelationStatistics Valid=133, Invalid=660, Unknown=27, NotChecked=110, Total=930 [2022-07-21 09:29:44,270 INFO L413 NwaCegarLoop]: 245 mSDtfsCounter, 136 mSDsluCounter, 1393 mSDsCounter, 0 mSdLazyCounter, 1440 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 1638 SdHoareTripleChecker+Invalid, 2919 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1440 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1373 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-21 09:29:44,270 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 1638 Invalid, 2919 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1440 Invalid, 0 Unknown, 1373 Unchecked, 1.1s Time] [2022-07-21 09:29:44,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2022-07-21 09:29:44,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 292. [2022-07-21 09:29:44,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 176 states have (on average 1.1477272727272727) internal successors, (202), 185 states have internal predecessors, (202), 82 states have call successors, (82), 27 states have call predecessors, (82), 33 states have return successors, (149), 79 states have call predecessors, (149), 81 states have call successors, (149) [2022-07-21 09:29:44,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 433 transitions. [2022-07-21 09:29:44,289 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 433 transitions. Word has length 116 [2022-07-21 09:29:44,289 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:29:44,289 INFO L495 AbstractCegarLoop]: Abstraction has 292 states and 433 transitions. [2022-07-21 09:29:44,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 3.789473684210526) internal successors, (72), 18 states have internal predecessors, (72), 8 states have call successors, (19), 5 states have call predecessors, (19), 6 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) [2022-07-21 09:29:44,289 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 433 transitions. [2022-07-21 09:29:44,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-21 09:29:44,291 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:29:44,291 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:29:44,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-07-21 09:29:44,507 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:29:44,507 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:29:44,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:29:44,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1129592126, now seen corresponding path program 2 times [2022-07-21 09:29:44,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:29:44,508 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532325651] [2022-07-21 09:29:44,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:29:44,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:29:44,554 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:29:44,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2125902197] [2022-07-21 09:29:44,555 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 09:29:44,555 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:29:44,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:29:44,556 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:29:44,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-21 09:29:45,036 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-21 09:29:45,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 09:29:45,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 2427 conjuncts, 80 conjunts are in the unsatisfiable core [2022-07-21 09:29:45,051 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:29:45,057 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 09:29:45,288 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-07-21 09:29:45,288 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 21 treesize of output 20 [2022-07-21 09:29:45,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:29:45,293 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-07-21 09:29:45,436 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_735 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_735) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_736 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_736) |c_#memory_$Pointer$.offset|))) is different from true [2022-07-21 09:29:45,697 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 62 proven. 4 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2022-07-21 09:29:45,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:29:46,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:29:46,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532325651] [2022-07-21 09:29:46,141 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:29:46,141 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2125902197] [2022-07-21 09:29:46,141 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2125902197] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:29:46,141 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:29:46,141 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2022-07-21 09:29:46,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866369353] [2022-07-21 09:29:46,141 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-21 09:29:46,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-21 09:29:46,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:29:46,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-21 09:29:46,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=727, Unknown=7, NotChecked=54, Total=870 [2022-07-21 09:29:46,143 INFO L87 Difference]: Start difference. First operand 292 states and 433 transitions. Second operand has 23 states, 20 states have (on average 3.0) internal successors, (60), 19 states have internal predecessors, (60), 7 states have call successors, (17), 7 states have call predecessors, (17), 8 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) [2022-07-21 09:29:47,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:29:47,651 INFO L93 Difference]: Finished difference Result 514 states and 783 transitions. [2022-07-21 09:29:47,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-07-21 09:29:47,652 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 3.0) internal successors, (60), 19 states have internal predecessors, (60), 7 states have call successors, (17), 7 states have call predecessors, (17), 8 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) Word has length 116 [2022-07-21 09:29:47,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:29:47,653 INFO L225 Difference]: With dead ends: 514 [2022-07-21 09:29:47,653 INFO L226 Difference]: Without dead ends: 313 [2022-07-21 09:29:47,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 194 GetRequests, 149 SyntacticMatches, 5 SemanticMatches, 40 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 323 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=173, Invalid=1447, Unknown=24, NotChecked=78, Total=1722 [2022-07-21 09:29:47,655 INFO L413 NwaCegarLoop]: 198 mSDtfsCounter, 91 mSDsluCounter, 1370 mSDsCounter, 0 mSdLazyCounter, 1526 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 101 SdHoareTripleChecker+Valid, 1568 SdHoareTripleChecker+Invalid, 3038 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1423 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-07-21 09:29:47,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [101 Valid, 1568 Invalid, 3038 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1526 Invalid, 0 Unknown, 1423 Unchecked, 1.2s Time] [2022-07-21 09:29:47,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2022-07-21 09:29:47,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 295. [2022-07-21 09:29:47,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 178 states have (on average 1.146067415730337) internal successors, (204), 187 states have internal predecessors, (204), 82 states have call successors, (82), 28 states have call predecessors, (82), 34 states have return successors, (148), 79 states have call predecessors, (148), 81 states have call successors, (148) [2022-07-21 09:29:47,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 434 transitions. [2022-07-21 09:29:47,671 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 434 transitions. Word has length 116 [2022-07-21 09:29:47,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:29:47,671 INFO L495 AbstractCegarLoop]: Abstraction has 295 states and 434 transitions. [2022-07-21 09:29:47,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 3.0) internal successors, (60), 19 states have internal predecessors, (60), 7 states have call successors, (17), 7 states have call predecessors, (17), 8 states have return successors, (15), 6 states have call predecessors, (15), 7 states have call successors, (15) [2022-07-21 09:29:47,672 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 434 transitions. [2022-07-21 09:29:47,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2022-07-21 09:29:47,673 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:29:47,673 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:29:47,694 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-21 09:29:47,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-07-21 09:29:47,888 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:29:47,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:29:47,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1148600154, now seen corresponding path program 1 times [2022-07-21 09:29:47,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:29:47,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177740220] [2022-07-21 09:29:47,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:29:47,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:29:47,929 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:29:47,930 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [693793662] [2022-07-21 09:29:47,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:29:47,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:29:47,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:29:47,931 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:29:47,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-21 09:29:48,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:29:48,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 2474 conjuncts, 48 conjunts are in the unsatisfiable core [2022-07-21 09:29:48,280 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:29:48,314 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-21 09:29:48,423 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-07-21 09:29:48,424 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 22 treesize of output 21 [2022-07-21 09:29:50,506 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_872 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_872)) |c_#memory_$Pointer$.base|)) is different from true [2022-07-21 09:30:08,060 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-07-21 09:30:08,060 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:30:08,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:30:08,060 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177740220] [2022-07-21 09:30:08,061 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:30:08,061 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [693793662] [2022-07-21 09:30:08,061 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [693793662] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:30:08,061 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:30:08,061 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-21 09:30:08,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809098906] [2022-07-21 09:30:08,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:30:08,061 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-21 09:30:08,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:30:08,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-21 09:30:08,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=255, Unknown=7, NotChecked=32, Total=342 [2022-07-21 09:30:08,062 INFO L87 Difference]: Start difference. First operand 295 states and 434 transitions. Second operand has 19 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 16 states have internal predecessors, (62), 8 states have call successors, (19), 4 states have call predecessors, (19), 7 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) [2022-07-21 09:30:08,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:30:08,924 INFO L93 Difference]: Finished difference Result 577 states and 892 transitions. [2022-07-21 09:30:08,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-07-21 09:30:08,924 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 16 states have internal predecessors, (62), 8 states have call successors, (19), 4 states have call predecessors, (19), 7 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) Word has length 125 [2022-07-21 09:30:08,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:30:08,926 INFO L225 Difference]: With dead ends: 577 [2022-07-21 09:30:08,927 INFO L226 Difference]: Without dead ends: 367 [2022-07-21 09:30:08,928 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 104 SyntacticMatches, 3 SemanticMatches, 21 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 19.7s TimeCoverageRelationStatistics Valid=66, Invalid=393, Unknown=7, NotChecked=40, Total=506 [2022-07-21 09:30:08,929 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 125 mSDsluCounter, 1557 mSDsCounter, 0 mSdLazyCounter, 1172 mSolverCounterSat, 90 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 1833 SdHoareTripleChecker+Invalid, 2313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 90 IncrementalHoareTripleChecker+Valid, 1172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1051 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 09:30:08,929 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 1833 Invalid, 2313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [90 Valid, 1172 Invalid, 0 Unknown, 1051 Unchecked, 0.7s Time] [2022-07-21 09:30:08,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states. [2022-07-21 09:30:08,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 291. [2022-07-21 09:30:08,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 176 states have (on average 1.1477272727272727) internal successors, (202), 184 states have internal predecessors, (202), 81 states have call successors, (81), 28 states have call predecessors, (81), 33 states have return successors, (142), 78 states have call predecessors, (142), 80 states have call successors, (142) [2022-07-21 09:30:08,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 425 transitions. [2022-07-21 09:30:08,949 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 425 transitions. Word has length 125 [2022-07-21 09:30:08,949 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:30:08,949 INFO L495 AbstractCegarLoop]: Abstraction has 291 states and 425 transitions. [2022-07-21 09:30:08,949 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.6470588235294117) internal successors, (62), 16 states have internal predecessors, (62), 8 states have call successors, (19), 4 states have call predecessors, (19), 7 states have return successors, (17), 8 states have call predecessors, (17), 8 states have call successors, (17) [2022-07-21 09:30:08,949 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 425 transitions. [2022-07-21 09:30:08,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-07-21 09:30:08,950 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:30:08,951 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:30:08,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-21 09:30:09,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-07-21 09:30:09,155 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:30:09,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:30:09,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1539294758, now seen corresponding path program 1 times [2022-07-21 09:30:09,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:30:09,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712450140] [2022-07-21 09:30:09,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:30:09,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:30:09,205 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:30:09,205 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2130225651] [2022-07-21 09:30:09,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:30:09,206 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:30:09,206 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:30:09,216 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:30:09,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-21 09:30:09,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:30:09,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 2427 conjuncts, 66 conjunts are in the unsatisfiable core [2022-07-21 09:30:09,570 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:30:09,791 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 09:30:09,791 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 53 treesize of output 37 [2022-07-21 09:30:09,794 INFO L173 IndexEqualityManager]: detected equality via solver [2022-07-21 09:30:09,796 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-07-21 09:30:09,796 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 20 [2022-07-21 09:30:09,834 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 68 proven. 4 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-07-21 09:30:09,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:30:10,314 INFO L356 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2022-07-21 09:30:10,314 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 30 treesize of output 25 [2022-07-21 09:30:10,320 INFO L356 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2022-07-21 09:30:10,320 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 12 [2022-07-21 09:30:10,357 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2022-07-21 09:30:10,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:30:10,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712450140] [2022-07-21 09:30:10,357 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:30:10,358 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130225651] [2022-07-21 09:30:10,358 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130225651] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-21 09:30:10,358 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-21 09:30:10,358 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 26 [2022-07-21 09:30:10,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44708293] [2022-07-21 09:30:10,358 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-21 09:30:10,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-21 09:30:10,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:30:10,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-21 09:30:10,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=581, Unknown=0, NotChecked=0, Total=650 [2022-07-21 09:30:10,360 INFO L87 Difference]: Start difference. First operand 291 states and 425 transitions. Second operand has 26 states, 23 states have (on average 3.608695652173913) internal successors, (83), 22 states have internal predecessors, (83), 9 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (25), 7 states have call predecessors, (25), 8 states have call successors, (25) [2022-07-21 09:30:11,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:30:11,361 INFO L93 Difference]: Finished difference Result 530 states and 802 transitions. [2022-07-21 09:30:11,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-07-21 09:30:11,362 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 3.608695652173913) internal successors, (83), 22 states have internal predecessors, (83), 9 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (25), 7 states have call predecessors, (25), 8 states have call successors, (25) Word has length 114 [2022-07-21 09:30:11,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:30:11,364 INFO L225 Difference]: With dead ends: 530 [2022-07-21 09:30:11,364 INFO L226 Difference]: Without dead ends: 329 [2022-07-21 09:30:11,365 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 242 GetRequests, 206 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=154, Invalid=1178, Unknown=0, NotChecked=0, Total=1332 [2022-07-21 09:30:11,366 INFO L413 NwaCegarLoop]: 200 mSDtfsCounter, 88 mSDsluCounter, 2430 mSDsCounter, 0 mSdLazyCounter, 972 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 2630 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 972 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 99 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 09:30:11,366 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 2630 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 972 Invalid, 0 Unknown, 99 Unchecked, 0.7s Time] [2022-07-21 09:30:11,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-07-21 09:30:11,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 302. [2022-07-21 09:30:11,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 182 states have (on average 1.1318681318681318) internal successors, (206), 190 states have internal predecessors, (206), 84 states have call successors, (84), 29 states have call predecessors, (84), 35 states have return successors, (151), 82 states have call predecessors, (151), 83 states have call successors, (151) [2022-07-21 09:30:11,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 441 transitions. [2022-07-21 09:30:11,382 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 441 transitions. Word has length 114 [2022-07-21 09:30:11,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:30:11,382 INFO L495 AbstractCegarLoop]: Abstraction has 302 states and 441 transitions. [2022-07-21 09:30:11,382 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 3.608695652173913) internal successors, (83), 22 states have internal predecessors, (83), 9 states have call successors, (29), 6 states have call predecessors, (29), 6 states have return successors, (25), 7 states have call predecessors, (25), 8 states have call successors, (25) [2022-07-21 09:30:11,383 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 441 transitions. [2022-07-21 09:30:11,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2022-07-21 09:30:11,384 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:30:11,384 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:30:11,409 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-07-21 09:30:11,603 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-07-21 09:30:11,603 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:30:11,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:30:11,604 INFO L85 PathProgramCache]: Analyzing trace with hash 1797644759, now seen corresponding path program 2 times [2022-07-21 09:30:11,604 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:30:11,604 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709901976] [2022-07-21 09:30:11,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:30:11,604 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:30:11,659 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:30:11,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [560674090] [2022-07-21 09:30:11,660 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 09:30:11,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:30:11,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:30:11,661 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:30:11,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-21 09:30:12,345 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-21 09:30:12,345 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 09:30:12,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 2426 conjuncts, 31 conjunts are in the unsatisfiable core [2022-07-21 09:30:12,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:30:12,429 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 29 trivial. 0 not checked. [2022-07-21 09:30:12,429 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:30:12,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:30:12,429 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709901976] [2022-07-21 09:30:12,429 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:30:12,430 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [560674090] [2022-07-21 09:30:12,430 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [560674090] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:30:12,430 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:30:12,430 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-21 09:30:12,430 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816233059] [2022-07-21 09:30:12,430 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:30:12,430 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-21 09:30:12,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:30:12,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-21 09:30:12,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-21 09:30:12,431 INFO L87 Difference]: Start difference. First operand 302 states and 441 transitions. Second operand has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 9 states have internal predecessors, (62), 3 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-21 09:30:12,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:30:12,687 INFO L93 Difference]: Finished difference Result 507 states and 752 transitions. [2022-07-21 09:30:12,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-07-21 09:30:12,687 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 9 states have internal predecessors, (62), 3 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) Word has length 120 [2022-07-21 09:30:12,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:30:12,694 INFO L225 Difference]: With dead ends: 507 [2022-07-21 09:30:12,694 INFO L226 Difference]: Without dead ends: 283 [2022-07-21 09:30:12,696 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-07-21 09:30:12,696 INFO L413 NwaCegarLoop]: 233 mSDtfsCounter, 11 mSDsluCounter, 2230 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2463 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-21 09:30:12,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2463 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-21 09:30:12,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states. [2022-07-21 09:30:12,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 283. [2022-07-21 09:30:12,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 171 states have (on average 1.1403508771929824) internal successors, (195), 179 states have internal predecessors, (195), 78 states have call successors, (78), 26 states have call predecessors, (78), 33 states have return successors, (135), 77 states have call predecessors, (135), 77 states have call successors, (135) [2022-07-21 09:30:12,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 408 transitions. [2022-07-21 09:30:12,709 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 408 transitions. Word has length 120 [2022-07-21 09:30:12,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:30:12,710 INFO L495 AbstractCegarLoop]: Abstraction has 283 states and 408 transitions. [2022-07-21 09:30:12,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.636363636363637) internal successors, (62), 9 states have internal predecessors, (62), 3 states have call successors, (18), 2 states have call predecessors, (18), 6 states have return successors, (16), 5 states have call predecessors, (16), 3 states have call successors, (16) [2022-07-21 09:30:12,710 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 408 transitions. [2022-07-21 09:30:12,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-21 09:30:12,711 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:30:12,711 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:30:12,734 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-21 09:30:12,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-07-21 09:30:12,920 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:30:12,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:30:12,921 INFO L85 PathProgramCache]: Analyzing trace with hash -1256917380, now seen corresponding path program 1 times [2022-07-21 09:30:12,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:30:12,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858491839] [2022-07-21 09:30:12,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:30:12,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:30:12,968 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:30:12,968 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1855731688] [2022-07-21 09:30:12,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:30:12,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:30:12,970 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:30:12,971 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:30:12,972 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-21 09:30:13,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:30:13,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 2432 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-21 09:30:13,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:30:13,408 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 56 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2022-07-21 09:30:13,408 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:30:13,408 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:30:13,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858491839] [2022-07-21 09:30:13,408 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:30:13,408 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1855731688] [2022-07-21 09:30:13,409 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1855731688] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:30:13,409 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:30:13,409 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 09:30:13,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465083536] [2022-07-21 09:30:13,409 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:30:13,410 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 09:30:13,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:30:13,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 09:30:13,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 09:30:13,412 INFO L87 Difference]: Start difference. First operand 283 states and 408 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 09:30:13,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:30:13,593 INFO L93 Difference]: Finished difference Result 493 states and 765 transitions. [2022-07-21 09:30:13,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 09:30:13,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 116 [2022-07-21 09:30:13,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:30:13,595 INFO L225 Difference]: With dead ends: 493 [2022-07-21 09:30:13,595 INFO L226 Difference]: Without dead ends: 292 [2022-07-21 09:30:13,596 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-07-21 09:30:13,597 INFO L413 NwaCegarLoop]: 234 mSDtfsCounter, 16 mSDsluCounter, 630 mSDsCounter, 0 mSdLazyCounter, 100 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 09:30:13,597 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 864 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 100 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 09:30:13,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2022-07-21 09:30:13,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 284. [2022-07-21 09:30:13,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 172 states have (on average 1.1337209302325582) internal successors, (195), 180 states have internal predecessors, (195), 78 states have call successors, (78), 26 states have call predecessors, (78), 33 states have return successors, (135), 77 states have call predecessors, (135), 77 states have call successors, (135) [2022-07-21 09:30:13,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 408 transitions. [2022-07-21 09:30:13,611 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 408 transitions. Word has length 116 [2022-07-21 09:30:13,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:30:13,611 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 408 transitions. [2022-07-21 09:30:13,611 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 09:30:13,611 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 408 transitions. [2022-07-21 09:30:13,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-21 09:30:13,612 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:30:13,612 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-21 09:30:13,633 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-07-21 09:30:13,825 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-07-21 09:30:13,825 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:30:13,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:30:13,826 INFO L85 PathProgramCache]: Analyzing trace with hash 104974192, now seen corresponding path program 1 times [2022-07-21 09:30:13,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:30:13,826 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922611379] [2022-07-21 09:30:13,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:30:13,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:30:13,876 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:30:13,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1008402426] [2022-07-21 09:30:13,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:30:13,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:30:13,876 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:30:13,892 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:30:13,893 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-21 09:30:14,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:30:14,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 2422 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-21 09:30:14,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:30:14,308 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-07-21 09:30:14,308 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-21 09:30:14,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:30:14,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922611379] [2022-07-21 09:30:14,308 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:30:14,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1008402426] [2022-07-21 09:30:14,308 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1008402426] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-21 09:30:14,308 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-21 09:30:14,308 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-21 09:30:14,308 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564841722] [2022-07-21 09:30:14,308 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-21 09:30:14,309 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-21 09:30:14,309 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:30:14,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-21 09:30:14,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-21 09:30:14,310 INFO L87 Difference]: Start difference. First operand 284 states and 408 transitions. Second operand has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 09:30:14,495 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:30:14,495 INFO L93 Difference]: Finished difference Result 490 states and 759 transitions. [2022-07-21 09:30:14,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-21 09:30:14,496 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) Word has length 116 [2022-07-21 09:30:14,496 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:30:14,497 INFO L225 Difference]: With dead ends: 490 [2022-07-21 09:30:14,497 INFO L226 Difference]: Without dead ends: 288 [2022-07-21 09:30:14,498 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-21 09:30:14,499 INFO L413 NwaCegarLoop]: 242 mSDtfsCounter, 7 mSDsluCounter, 647 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 889 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-21 09:30:14,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 889 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-21 09:30:14,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2022-07-21 09:30:14,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 284. [2022-07-21 09:30:14,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 172 states have (on average 1.122093023255814) internal successors, (193), 180 states have internal predecessors, (193), 78 states have call successors, (78), 26 states have call predecessors, (78), 33 states have return successors, (135), 77 states have call predecessors, (135), 77 states have call successors, (135) [2022-07-21 09:30:14,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 406 transitions. [2022-07-21 09:30:14,513 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 406 transitions. Word has length 116 [2022-07-21 09:30:14,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:30:14,513 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 406 transitions. [2022-07-21 09:30:14,513 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 12.2) internal successors, (61), 5 states have internal predecessors, (61), 2 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (15), 2 states have call predecessors, (15), 2 states have call successors, (15) [2022-07-21 09:30:14,513 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 406 transitions. [2022-07-21 09:30:14,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-21 09:30:14,514 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:30:14,514 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-21 09:30:14,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-21 09:30:14,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-07-21 09:30:14,732 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:30:14,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:30:14,732 INFO L85 PathProgramCache]: Analyzing trace with hash -739031310, now seen corresponding path program 1 times [2022-07-21 09:30:14,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:30:14,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188967101] [2022-07-21 09:30:14,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:30:14,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:30:14,774 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:30:14,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [451074074] [2022-07-21 09:30:14,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:30:14,775 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:30:14,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:30:14,776 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:30:14,810 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-21 09:30:15,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:30:15,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 2427 conjuncts, 99 conjunts are in the unsatisfiable core [2022-07-21 09:30:15,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:30:17,628 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_1350 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_1347 Int)) (and (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_1347)) |c_#memory_$Pointer$.offset|) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_1350))))) is different from true [2022-07-21 09:30:33,619 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 74 proven. 13 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-07-21 09:30:33,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:30:36,452 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_81| Int) (v_ArrVal_1363 Int)) (= (select (select (store |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_81| (store (select |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_81|) 0 v_ArrVal_1363)) c_aws_array_list_length_~list.base) (+ 32 c_aws_array_list_length_~list.offset)) 0)) (forall ((|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_81| Int) (v_ArrVal_1364 Int)) (= 0 (select (select (store |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_81| (store (select |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_81|) 0 v_ArrVal_1364)) c_aws_array_list_length_~list.base) (+ 32 c_aws_array_list_length_~list.offset))))) is different from false [2022-07-21 09:30:36,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:30:36,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188967101] [2022-07-21 09:30:36,454 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:30:36,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [451074074] [2022-07-21 09:30:36,454 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [451074074] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:30:36,454 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:30:36,454 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2022-07-21 09:30:36,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800410846] [2022-07-21 09:30:36,454 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-21 09:30:36,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-21 09:30:36,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:30:36,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-21 09:30:36,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=790, Unknown=5, NotChecked=114, Total=992 [2022-07-21 09:30:36,455 INFO L87 Difference]: Start difference. First operand 284 states and 406 transitions. Second operand has 26 states, 23 states have (on average 3.260869565217391) internal successors, (75), 23 states have internal predecessors, (75), 10 states have call successors, (19), 5 states have call predecessors, (19), 8 states have return successors, (17), 9 states have call predecessors, (17), 10 states have call successors, (17) [2022-07-21 09:31:00,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:31:00,661 INFO L93 Difference]: Finished difference Result 549 states and 835 transitions. [2022-07-21 09:31:00,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-07-21 09:31:00,662 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 23 states have (on average 3.260869565217391) internal successors, (75), 23 states have internal predecessors, (75), 10 states have call successors, (19), 5 states have call predecessors, (19), 8 states have return successors, (17), 9 states have call predecessors, (17), 10 states have call successors, (17) Word has length 116 [2022-07-21 09:31:00,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:31:00,663 INFO L225 Difference]: With dead ends: 549 [2022-07-21 09:31:00,663 INFO L226 Difference]: Without dead ends: 349 [2022-07-21 09:31:00,665 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 114 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 416 ImplicationChecksByTransitivity, 43.3s TimeCoverageRelationStatistics Valid=217, Invalid=1937, Unknown=16, NotChecked=182, Total=2352 [2022-07-21 09:31:00,665 INFO L413 NwaCegarLoop]: 235 mSDtfsCounter, 130 mSDsluCounter, 2191 mSDsCounter, 0 mSdLazyCounter, 2116 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 2426 SdHoareTripleChecker+Invalid, 3860 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 2116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1647 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2022-07-21 09:31:00,665 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 2426 Invalid, 3860 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 2116 Invalid, 0 Unknown, 1647 Unchecked, 1.4s Time] [2022-07-21 09:31:00,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2022-07-21 09:31:00,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 284. [2022-07-21 09:31:00,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 172 states have (on average 1.122093023255814) internal successors, (193), 180 states have internal predecessors, (193), 78 states have call successors, (78), 26 states have call predecessors, (78), 33 states have return successors, (134), 77 states have call predecessors, (134), 77 states have call successors, (134) [2022-07-21 09:31:00,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 405 transitions. [2022-07-21 09:31:00,679 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 405 transitions. Word has length 116 [2022-07-21 09:31:00,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:31:00,680 INFO L495 AbstractCegarLoop]: Abstraction has 284 states and 405 transitions. [2022-07-21 09:31:00,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 23 states have (on average 3.260869565217391) internal successors, (75), 23 states have internal predecessors, (75), 10 states have call successors, (19), 5 states have call predecessors, (19), 8 states have return successors, (17), 9 states have call predecessors, (17), 10 states have call successors, (17) [2022-07-21 09:31:00,680 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 405 transitions. [2022-07-21 09:31:00,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2022-07-21 09:31:00,681 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:31:00,681 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2022-07-21 09:31:00,703 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-07-21 09:31:00,895 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:31:00,895 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:31:00,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:31:00,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1127007358, now seen corresponding path program 2 times [2022-07-21 09:31:00,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:31:00,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851924669] [2022-07-21 09:31:00,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:31:00,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:31:00,936 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:31:00,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [982197233] [2022-07-21 09:31:00,936 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-21 09:31:00,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:31:00,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:31:00,937 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:31:00,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-21 09:31:01,674 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-21 09:31:01,674 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-21 09:31:01,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 2427 conjuncts, 101 conjunts are in the unsatisfiable core [2022-07-21 09:31:01,687 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:31:01,693 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-07-21 09:31:05,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:31:05,941 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-07-21 09:31:05,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:31:05,947 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-07-21 09:31:06,894 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_1469 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_1469) |c_#memory_$Pointer$.base|)) (exists ((v_ArrVal_1468 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_1468)))) is different from true [2022-07-21 09:31:07,189 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-21 09:31:07,191 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-21 09:31:07,196 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-07-21 09:31:07,196 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-07-21 09:31:07,254 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 65 proven. 8 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-07-21 09:31:07,254 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-21 09:31:07,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-21 09:31:07,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851924669] [2022-07-21 09:31:07,916 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-21 09:31:07,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982197233] [2022-07-21 09:31:07,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982197233] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-21 09:31:07,916 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-21 09:31:07,917 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2022-07-21 09:31:07,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848432460] [2022-07-21 09:31:07,917 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-21 09:31:07,917 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-21 09:31:07,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-21 09:31:07,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-21 09:31:07,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=626, Unknown=10, NotChecked=50, Total=756 [2022-07-21 09:31:07,918 INFO L87 Difference]: Start difference. First operand 284 states and 405 transitions. Second operand has 19 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 16 states have internal predecessors, (63), 6 states have call successors, (17), 5 states have call predecessors, (17), 7 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2022-07-21 09:31:13,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-21 09:31:13,462 INFO L93 Difference]: Finished difference Result 500 states and 735 transitions. [2022-07-21 09:31:13,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-21 09:31:13,462 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 16 states have internal predecessors, (63), 6 states have call successors, (17), 5 states have call predecessors, (17), 7 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) Word has length 116 [2022-07-21 09:31:13,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-21 09:31:13,464 INFO L225 Difference]: With dead ends: 500 [2022-07-21 09:31:13,464 INFO L226 Difference]: Without dead ends: 298 [2022-07-21 09:31:13,465 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 152 SyntacticMatches, 3 SemanticMatches, 32 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=112, Invalid=932, Unknown=16, NotChecked=62, Total=1122 [2022-07-21 09:31:13,466 INFO L413 NwaCegarLoop]: 203 mSDtfsCounter, 75 mSDsluCounter, 1269 mSDsCounter, 0 mSdLazyCounter, 1167 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 1472 SdHoareTripleChecker+Invalid, 2691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 1167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1441 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-07-21 09:31:13,466 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 1472 Invalid, 2691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 1167 Invalid, 0 Unknown, 1441 Unchecked, 0.7s Time] [2022-07-21 09:31:13,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2022-07-21 09:31:13,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 280. [2022-07-21 09:31:13,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 169 states have (on average 1.1242603550295858) internal successors, (190), 176 states have internal predecessors, (190), 78 states have call successors, (78), 26 states have call predecessors, (78), 32 states have return successors, (120), 77 states have call predecessors, (120), 77 states have call successors, (120) [2022-07-21 09:31:13,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 388 transitions. [2022-07-21 09:31:13,479 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 388 transitions. Word has length 116 [2022-07-21 09:31:13,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-21 09:31:13,479 INFO L495 AbstractCegarLoop]: Abstraction has 280 states and 388 transitions. [2022-07-21 09:31:13,479 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 3.7058823529411766) internal successors, (63), 16 states have internal predecessors, (63), 6 states have call successors, (17), 5 states have call predecessors, (17), 7 states have return successors, (15), 6 states have call predecessors, (15), 6 states have call successors, (15) [2022-07-21 09:31:13,479 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 388 transitions. [2022-07-21 09:31:13,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2022-07-21 09:31:13,480 INFO L187 NwaCegarLoop]: Found error trace [2022-07-21 09:31:13,480 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-21 09:31:13,509 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-21 09:31:13,699 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-21 09:31:13,700 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-21 09:31:13,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-21 09:31:13,700 INFO L85 PathProgramCache]: Analyzing trace with hash -1474280657, now seen corresponding path program 1 times [2022-07-21 09:31:13,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-21 09:31:13,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265944343] [2022-07-21 09:31:13,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:31:13,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-21 09:31:13,736 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-21 09:31:13,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1309983557] [2022-07-21 09:31:13,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-21 09:31:13,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-21 09:31:13,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-21 09:31:13,737 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-21 09:31:13,738 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-21 09:31:14,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-21 09:31:14,118 INFO L263 TraceCheckSpWp]: Trace formula consists of 2466 conjuncts, 107 conjunts are in the unsatisfiable core [2022-07-21 09:31:14,122 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-21 09:31:14,171 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-21 09:31:14,178 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-07-21 09:31:14,259 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-07-21 09:31:14,259 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 21 treesize of output 20 [2022-07-21 09:31:14,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-21 09:31:14,265 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 21 [2022-07-21 09:31:14,345 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int)) (and (exists ((v_ArrVal_1609 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_1609))) (exists ((v_ArrVal_1608 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| v_ArrVal_1608) |c_#memory_$Pointer$.offset|)))) is different from true [2022-07-21 09:31:14,606 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-21 09:31:14,606 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 16 treesize of output 22 [2022-07-21 09:31:14,618 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-21 09:31:14,619 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 17 treesize of output 23 [2022-07-21 09:31:14,622 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 8 treesize of output 4 [2022-07-21 09:31:14,625 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-07-21 09:31:32,980 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_1611 Int) (v_ArrVal_1610 Int)) (and (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_1611))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_1610))))) is different from true