./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 791161d1 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_copy_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 3a98a47bac7562a35bba31573ebdfd704a9d27baca1b439deea796ac12a0961b --- Real Ultimate output --- This is Ultimate 0.2.2-?-791161d [2022-07-22 22:04:00,105 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-22 22:04:00,107 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-22 22:04:00,132 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-22 22:04:00,132 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-22 22:04:00,133 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-22 22:04:00,134 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-22 22:04:00,138 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-22 22:04:00,139 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-22 22:04:00,142 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-22 22:04:00,143 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-22 22:04:00,144 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-22 22:04:00,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-22 22:04:00,146 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-22 22:04:00,147 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-22 22:04:00,149 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-22 22:04:00,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-22 22:04:00,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-22 22:04:00,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-22 22:04:00,155 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-22 22:04:00,157 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-22 22:04:00,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-22 22:04:00,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-22 22:04:00,158 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-22 22:04:00,159 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-22 22:04:00,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-22 22:04:00,164 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-22 22:04:00,165 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-22 22:04:00,166 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-22 22:04:00,166 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-22 22:04:00,167 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-22 22:04:00,167 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-22 22:04:00,168 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-22 22:04:00,168 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-22 22:04:00,169 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-22 22:04:00,170 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-22 22:04:00,170 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-22 22:04:00,171 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-22 22:04:00,171 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-22 22:04:00,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-22 22:04:00,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-22 22:04:00,172 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-22 22:04:00,174 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2022-07-22 22:04:00,199 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-22 22:04:00,200 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-22 22:04:00,200 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-22 22:04:00,200 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-22 22:04:00,200 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-07-22 22:04:00,201 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-07-22 22:04:00,201 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-22 22:04:00,201 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-22 22:04:00,201 INFO L138 SettingsManager]: * Use SBE=true [2022-07-22 22:04:00,202 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-22 22:04:00,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-22 22:04:00,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-22 22:04:00,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-07-22 22:04:00,202 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-07-22 22:04:00,202 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-07-22 22:04:00,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-22 22:04:00,203 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-22 22:04:00,203 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-07-22 22:04:00,203 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-22 22:04:00,203 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-22 22:04:00,203 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-07-22 22:04:00,203 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:04:00,204 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-22 22:04:00,204 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-07-22 22:04:00,204 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-07-22 22:04:00,204 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-22 22:04:00,204 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-07-22 22:04:00,204 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-07-22 22:04:00,204 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-07-22 22:04:00,205 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-07-22 22:04:00,205 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a98a47bac7562a35bba31573ebdfd704a9d27baca1b439deea796ac12a0961b [2022-07-22 22:04:00,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-22 22:04:00,376 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-22 22:04:00,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-22 22:04:00,378 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-22 22:04:00,379 INFO L275 PluginConnector]: CDTParser initialized [2022-07-22 22:04:00,380 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i [2022-07-22 22:04:00,422 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa8e8c25e/88866402c3724088b868734101050892/FLAGd9d327c00 [2022-07-22 22:04:00,961 INFO L306 CDTParser]: Found 1 translation units. [2022-07-22 22:04:00,961 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_copy_harness.i [2022-07-22 22:04:00,986 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa8e8c25e/88866402c3724088b868734101050892/FLAGd9d327c00 [2022-07-22 22:04:01,408 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/aa8e8c25e/88866402c3724088b868734101050892 [2022-07-22 22:04:01,410 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-22 22:04:01,411 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-22 22:04:01,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-22 22:04:01,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-22 22:04:01,414 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-22 22:04:01,414 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:04:01" (1/1) ... [2022-07-22 22:04:01,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d31e684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:04:01, skipping insertion in model container [2022-07-22 22:04:01,415 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.07 10:04:01" (1/1) ... [2022-07-22 22:04:01,419 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-22 22:04:01,494 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-22 22:04:01,696 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_copy_harness.i[4493,4506] [2022-07-22 22:04:01,701 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_copy_harness.i[4553,4566] [2022-07-22 22:04:02,120 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-22 22:04:02,152 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,153 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,153 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,154 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,154 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,164 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,165 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,166 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,167 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,168 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,168 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,169 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,169 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,324 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-22 22:04:02,325 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-22 22:04:02,325 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-22 22:04:02,326 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-22 22:04:02,327 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-22 22:04:02,327 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-22 22:04:02,328 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-22 22:04:02,328 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-22 22:04:02,331 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-22 22:04:02,332 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-22 22:04:02,459 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,460 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,463 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,474 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,510 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:04:02,528 INFO L203 MainTranslator]: Completed pre-run [2022-07-22 22:04:02,541 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_copy_harness.i[4493,4506] [2022-07-22 22:04:02,542 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_copy_harness.i[4553,4566] [2022-07-22 22:04:02,576 WARN L611 FunctionHandler]: implicit declaration of function __builtin_va_copy [2022-07-22 22:04:02,589 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,589 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,590 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,590 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,590 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,594 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,594 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,595 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,595 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,595 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,596 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,596 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,596 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,623 WARN L611 FunctionHandler]: implicit declaration of function __atomic_load_n [2022-07-22 22:04:02,628 WARN L611 FunctionHandler]: implicit declaration of function __atomic_store_n [2022-07-22 22:04:02,629 WARN L611 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2022-07-22 22:04:02,630 WARN L611 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2022-07-22 22:04:02,631 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2022-07-22 22:04:02,632 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2022-07-22 22:04:02,632 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2022-07-22 22:04:02,632 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2022-07-22 22:04:02,633 WARN L611 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2022-07-22 22:04:02,635 WARN L611 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2022-07-22 22:04:02,674 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,679 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,681 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,684 WARN L1550 CHandler]: Possible shadowing of function index [2022-07-22 22:04:02,711 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-22 22:04:02,862 INFO L208 MainTranslator]: Completed translation [2022-07-22 22:04:02,863 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:04:02 WrapperNode [2022-07-22 22:04:02,863 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-22 22:04:02,864 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-22 22:04:02,864 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-22 22:04:02,864 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-22 22:04:02,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:04:02" (1/1) ... [2022-07-22 22:04:02,934 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:04:02" (1/1) ... [2022-07-22 22:04:02,991 INFO L137 Inliner]: procedures = 691, calls = 1673, calls flagged for inlining = 52, calls inlined = 7, statements flattened = 695 [2022-07-22 22:04:02,992 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-22 22:04:02,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-22 22:04:02,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-22 22:04:02,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-22 22:04:03,002 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:04:02" (1/1) ... [2022-07-22 22:04:03,003 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:04:02" (1/1) ... [2022-07-22 22:04:03,013 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:04:02" (1/1) ... [2022-07-22 22:04:03,014 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:04:02" (1/1) ... [2022-07-22 22:04:03,047 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:04:02" (1/1) ... [2022-07-22 22:04:03,049 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:04:02" (1/1) ... [2022-07-22 22:04:03,053 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:04:02" (1/1) ... [2022-07-22 22:04:03,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-22 22:04:03,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-22 22:04:03,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-22 22:04:03,079 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-22 22:04:03,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:04:02" (1/1) ... [2022-07-22 22:04:03,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-07-22 22:04:03,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:04:03,102 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) [2022-07-22 22:04:03,135 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 [2022-07-22 22:04:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-07-22 22:04:03,145 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_bounded [2022-07-22 22:04:03,146 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_bounded [2022-07-22 22:04:03,146 INFO L130 BoogieDeclarations]: Found specification of procedure aws_array_list_is_valid [2022-07-22 22:04:03,146 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_array_list_is_valid [2022-07-22 22:04:03,146 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_bool [2022-07-22 22:04:03,146 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_bool [2022-07-22 22:04:03,146 INFO L130 BoogieDeclarations]: Found specification of procedure aws_allocator_is_valid [2022-07-22 22:04:03,147 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_allocator_is_valid [2022-07-22 22:04:03,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-07-22 22:04:03,147 INFO L130 BoogieDeclarations]: Found specification of procedure aws_raise_error [2022-07-22 22:04:03,147 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_raise_error [2022-07-22 22:04:03,147 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-07-22 22:04:03,148 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-07-22 22:04:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-07-22 22:04:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-22 22:04:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-07-22 22:04:03,148 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_impl [2022-07-22 22:04:03,148 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_impl [2022-07-22 22:04:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-22 22:04:03,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-22 22:04:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure bounded_malloc [2022-07-22 22:04:03,149 INFO L138 BoogieDeclarations]: Found implementation of procedure bounded_malloc [2022-07-22 22:04:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mul_size_checked [2022-07-22 22:04:03,149 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mul_size_checked [2022-07-22 22:04:03,149 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_malloc [2022-07-22 22:04:03,150 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_malloc [2022-07-22 22:04:03,150 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_release [2022-07-22 22:04:03,150 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_release [2022-07-22 22:04:03,150 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2022-07-22 22:04:03,150 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2022-07-22 22:04:03,150 INFO L130 BoogieDeclarations]: Found specification of procedure my_memcpy [2022-07-22 22:04:03,150 INFO L138 BoogieDeclarations]: Found implementation of procedure my_memcpy [2022-07-22 22:04:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure aws_mem_acquire [2022-07-22 22:04:03,151 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_mem_acquire [2022-07-22 22:04:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-07-22 22:04:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-07-22 22:04:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-07-22 22:04:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure can_fail_allocator [2022-07-22 22:04:03,151 INFO L138 BoogieDeclarations]: Found implementation of procedure can_fail_allocator [2022-07-22 22:04:03,151 INFO L130 BoogieDeclarations]: Found specification of procedure __CPROVER_overflow_mult [2022-07-22 22:04:03,151 INFO L138 BoogieDeclarations]: Found implementation of procedure __CPROVER_overflow_mult [2022-07-22 22:04:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-07-22 22:04:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure ensure_array_list_has_allocated_data_member [2022-07-22 22:04:03,152 INFO L138 BoogieDeclarations]: Found implementation of procedure ensure_array_list_has_allocated_data_member [2022-07-22 22:04:03,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-22 22:04:03,391 INFO L234 CfgBuilder]: Building ICFG [2022-07-22 22:04:03,392 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-22 22:04:03,945 INFO L275 CfgBuilder]: Performing block encoding [2022-07-22 22:04:03,953 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-22 22:04:03,953 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-07-22 22:04:03,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:04:03 BoogieIcfgContainer [2022-07-22 22:04:03,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-22 22:04:03,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-07-22 22:04:03,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-07-22 22:04:03,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-07-22 22:04:03,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.07 10:04:01" (1/3) ... [2022-07-22 22:04:03,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b8e4d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 10:04:03, skipping insertion in model container [2022-07-22 22:04:03,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.07 10:04:02" (2/3) ... [2022-07-22 22:04:03,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b8e4d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.07 10:04:03, skipping insertion in model container [2022-07-22 22:04:03,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.07 10:04:03" (3/3) ... [2022-07-22 22:04:03,963 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_copy_harness.i [2022-07-22 22:04:03,972 INFO L201 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-07-22 22:04:03,973 INFO L160 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-07-22 22:04:04,020 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-07-22 22:04:04,024 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@6f0032d5, mLbeIndependenceSettings=de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings@48147875 [2022-07-22 22:04:04,024 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-07-22 22:04:04,027 INFO L276 IsEmpty]: Start isEmpty. Operand has 209 states, 119 states have (on average 1.184873949579832) internal successors, (141), 120 states have internal predecessors, (141), 71 states have call successors, (71), 17 states have call predecessors, (71), 17 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) [2022-07-22 22:04:04,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-07-22 22:04:04,051 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:04:04,052 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:04:04,053 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:04:04,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:04:04,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1428143905, now seen corresponding path program 1 times [2022-07-22 22:04:04,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:04:04,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484918106] [2022-07-22 22:04:04,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:04:04,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:04:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:04,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-07-22 22:04:04,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:04,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2022-07-22 22:04:04,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:04,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-07-22 22:04:04,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:04,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 22:04:04,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:04,579 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 22:04:04,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:04,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2022-07-22 22:04:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:04,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2022-07-22 22:04:04,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:04,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2022-07-22 22:04:04,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:04,657 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2022-07-22 22:04:04,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:04,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2022-07-22 22:04:04,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:04,673 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2022-07-22 22:04:04,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:04,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2022-07-22 22:04:04,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:04,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2022-07-22 22:04:04,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:04,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2022-07-22 22:04:04,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:04,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2022-07-22 22:04:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:04,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2022-07-22 22:04:04,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:04,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2022-07-22 22:04:04,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:04,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2022-07-22 22:04:04,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:04,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2022-07-22 22:04:04,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:04,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2022-07-22 22:04:04,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:04,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2022-07-22 22:04:04,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:04,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2022-07-22 22:04:04,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:04,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2022-07-22 22:04:04,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:04:04,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484918106] [2022-07-22 22:04:04,748 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unsupported non-linear arithmetic [2022-07-22 22:04:04,748 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [551124870] [2022-07-22 22:04:04,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:04:04,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:04:04,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:04:04,750 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) [2022-07-22 22:04:04,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-07-22 22:04:05,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:05,150 INFO L263 TraceCheckSpWp]: Trace formula consists of 2347 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 22:04:05,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:04:05,248 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 208 trivial. 0 not checked. [2022-07-22 22:04:05,248 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:04:05,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [551124870] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:04:05,249 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:04:05,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 22:04:05,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986253814] [2022-07-22 22:04:05,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:04:05,254 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 22:04:05,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:04:05,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 22:04:05,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-07-22 22:04:05,271 INFO L87 Difference]: Start difference. First operand has 209 states, 119 states have (on average 1.184873949579832) internal successors, (141), 120 states have internal predecessors, (141), 71 states have call successors, (71), 17 states have call predecessors, (71), 17 states have return successors, (71), 71 states have call predecessors, (71), 71 states have call successors, (71) Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-07-22 22:04:05,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:04:05,618 INFO L93 Difference]: Finished difference Result 416 states and 618 transitions. [2022-07-22 22:04:05,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 22:04:05,620 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 145 [2022-07-22 22:04:05,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:04:05,628 INFO L225 Difference]: With dead ends: 416 [2022-07-22 22:04:05,628 INFO L226 Difference]: Without dead ends: 206 [2022-07-22 22:04:05,631 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 196 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=144, Unknown=0, NotChecked=0, Total=182 [2022-07-22 22:04:05,633 INFO L413 NwaCegarLoop]: 215 mSDtfsCounter, 276 mSDsluCounter, 563 mSDsCounter, 0 mSdLazyCounter, 237 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 370 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 22:04:05,634 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 778 Invalid, 370 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 237 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 22:04:05,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2022-07-22 22:04:05,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 206. [2022-07-22 22:04:05,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 116 states have (on average 1.1724137931034482) internal successors, (136), 118 states have internal predecessors, (136), 71 states have call successors, (71), 17 states have call predecessors, (71), 18 states have return successors, (82), 70 states have call predecessors, (82), 70 states have call successors, (82) [2022-07-22 22:04:05,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 289 transitions. [2022-07-22 22:04:05,673 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 289 transitions. Word has length 145 [2022-07-22 22:04:05,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:04:05,673 INFO L495 AbstractCegarLoop]: Abstraction has 206 states and 289 transitions. [2022-07-22 22:04:05,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-07-22 22:04:05,674 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 289 transitions. [2022-07-22 22:04:05,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-07-22 22:04:05,677 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:04:05,678 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:04:05,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-07-22 22:04:05,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-07-22 22:04:05,888 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:04:05,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:04:05,888 INFO L85 PathProgramCache]: Analyzing trace with hash 484121766, now seen corresponding path program 1 times [2022-07-22 22:04:05,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:04:05,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137479648] [2022-07-22 22:04:05,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:04:05,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:04:05,955 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:04:05,955 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [273997676] [2022-07-22 22:04:05,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:04:05,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:04:05,956 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:04:05,957 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) [2022-07-22 22:04:05,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-07-22 22:04:06,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:06,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 2483 conjuncts, 3 conjunts are in the unsatisfiable core [2022-07-22 22:04:06,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:04:06,335 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 112 proven. 0 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-07-22 22:04:06,335 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:04:06,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:04:06,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137479648] [2022-07-22 22:04:06,335 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:04:06,336 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273997676] [2022-07-22 22:04:06,336 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273997676] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:04:06,336 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:04:06,336 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-07-22 22:04:06,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100633776] [2022-07-22 22:04:06,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:04:06,337 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-07-22 22:04:06,337 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:04:06,338 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-07-22 22:04:06,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-07-22 22:04:06,338 INFO L87 Difference]: Start difference. First operand 206 states and 289 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-22 22:04:06,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:04:06,372 INFO L93 Difference]: Finished difference Result 410 states and 588 transitions. [2022-07-22 22:04:06,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 22:04:06,374 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 160 [2022-07-22 22:04:06,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:04:06,378 INFO L225 Difference]: With dead ends: 410 [2022-07-22 22:04:06,379 INFO L226 Difference]: Without dead ends: 211 [2022-07-22 22:04:06,380 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 160 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-07-22 22:04:06,380 INFO L413 NwaCegarLoop]: 275 mSDtfsCounter, 10 mSDsluCounter, 540 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 815 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 22:04:06,381 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 815 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 22:04:06,383 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-07-22 22:04:06,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 208. [2022-07-22 22:04:06,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 118 states have (on average 1.1694915254237288) internal successors, (138), 120 states have internal predecessors, (138), 71 states have call successors, (71), 17 states have call predecessors, (71), 18 states have return successors, (82), 70 states have call predecessors, (82), 70 states have call successors, (82) [2022-07-22 22:04:06,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 291 transitions. [2022-07-22 22:04:06,401 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 291 transitions. Word has length 160 [2022-07-22 22:04:06,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:04:06,401 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 291 transitions. [2022-07-22 22:04:06,401 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 4 states have internal predecessors, (65), 2 states have call successors, (28), 2 states have call predecessors, (28), 2 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2022-07-22 22:04:06,402 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 291 transitions. [2022-07-22 22:04:06,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2022-07-22 22:04:06,403 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:04:06,403 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:04:06,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-07-22 22:04:06,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-07-22 22:04:06,608 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:04:06,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:04:06,609 INFO L85 PathProgramCache]: Analyzing trace with hash -2088842844, now seen corresponding path program 1 times [2022-07-22 22:04:06,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:04:06,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493123594] [2022-07-22 22:04:06,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:04:06,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:04:06,666 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:04:06,669 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [372884076] [2022-07-22 22:04:06,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:04:06,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:04:06,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:04:06,671 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) [2022-07-22 22:04:06,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-07-22 22:04:07,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:07,050 INFO L263 TraceCheckSpWp]: Trace formula consists of 2488 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 22:04:07,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:04:07,098 INFO L134 CoverageAnalysis]: Checked inductivity of 328 backedges. 176 proven. 0 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-07-22 22:04:07,098 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:04:07,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:04:07,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493123594] [2022-07-22 22:04:07,099 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:04:07,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [372884076] [2022-07-22 22:04:07,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [372884076] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:04:07,099 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:04:07,099 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 22:04:07,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786118648] [2022-07-22 22:04:07,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:04:07,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 22:04:07,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:04:07,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 22:04:07,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 22:04:07,101 INFO L87 Difference]: Start difference. First operand 208 states and 291 transitions. Second operand has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-07-22 22:04:07,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:04:07,352 INFO L93 Difference]: Finished difference Result 383 states and 533 transitions. [2022-07-22 22:04:07,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 22:04:07,353 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) Word has length 160 [2022-07-22 22:04:07,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:04:07,357 INFO L225 Difference]: With dead ends: 383 [2022-07-22 22:04:07,357 INFO L226 Difference]: Without dead ends: 208 [2022-07-22 22:04:07,358 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 164 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-07-22 22:04:07,361 INFO L413 NwaCegarLoop]: 213 mSDtfsCounter, 270 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 227 mSolverCounterSat, 122 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 769 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 122 IncrementalHoareTripleChecker+Valid, 227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 22:04:07,362 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 769 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [122 Valid, 227 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 22:04:07,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2022-07-22 22:04:07,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2022-07-22 22:04:07,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 118 states have (on average 1.1694915254237288) internal successors, (138), 120 states have internal predecessors, (138), 71 states have call successors, (71), 17 states have call predecessors, (71), 18 states have return successors, (80), 70 states have call predecessors, (80), 70 states have call successors, (80) [2022-07-22 22:04:07,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 289 transitions. [2022-07-22 22:04:07,394 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 289 transitions. Word has length 160 [2022-07-22 22:04:07,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:04:07,395 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 289 transitions. [2022-07-22 22:04:07,396 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.833333333333334) internal successors, (59), 6 states have internal predecessors, (59), 3 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 3 states have call predecessors, (25), 3 states have call successors, (25) [2022-07-22 22:04:07,396 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 289 transitions. [2022-07-22 22:04:07,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2022-07-22 22:04:07,399 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:04:07,399 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:04:07,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-07-22 22:04:07,611 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:04:07,611 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:04:07,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:04:07,612 INFO L85 PathProgramCache]: Analyzing trace with hash 2066938953, now seen corresponding path program 2 times [2022-07-22 22:04:07,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:04:07,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351463489] [2022-07-22 22:04:07,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:04:07,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:04:07,682 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:04:07,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1245154754] [2022-07-22 22:04:07,695 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 22:04:07,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:04:07,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:04:07,697 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) [2022-07-22 22:04:07,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-07-22 22:04:08,001 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-07-22 22:04:08,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 22:04:08,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 1926 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 22:04:08,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:04:08,034 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2022-07-22 22:04:08,034 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:04:08,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:04:08,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351463489] [2022-07-22 22:04:08,034 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:04:08,034 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245154754] [2022-07-22 22:04:08,034 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245154754] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:04:08,034 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:04:08,034 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 22:04:08,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379905112] [2022-07-22 22:04:08,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:04:08,035 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 22:04:08,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:04:08,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 22:04:08,035 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 22:04:08,035 INFO L87 Difference]: Start difference. First operand 208 states and 289 transitions. Second operand has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-22 22:04:08,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:04:08,068 INFO L93 Difference]: Finished difference Result 269 states and 367 transitions. [2022-07-22 22:04:08,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-07-22 22:04:08,068 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) Word has length 175 [2022-07-22 22:04:08,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:04:08,071 INFO L225 Difference]: With dead ends: 269 [2022-07-22 22:04:08,074 INFO L226 Difference]: Without dead ends: 213 [2022-07-22 22:04:08,075 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-07-22 22:04:08,076 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 2 mSDsluCounter, 812 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 1085 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 22:04:08,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 1085 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 22:04:08,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-07-22 22:04:08,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2022-07-22 22:04:08,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 122 states have (on average 1.1639344262295082) internal successors, (142), 124 states have internal predecessors, (142), 71 states have call successors, (71), 17 states have call predecessors, (71), 19 states have return successors, (82), 71 states have call predecessors, (82), 70 states have call successors, (82) [2022-07-22 22:04:08,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 295 transitions. [2022-07-22 22:04:08,096 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 295 transitions. Word has length 175 [2022-07-22 22:04:08,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:04:08,097 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 295 transitions. [2022-07-22 22:04:08,097 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 10.2) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (25), 2 states have call predecessors, (25), 3 states have return successors, (24), 3 states have call predecessors, (24), 2 states have call successors, (24) [2022-07-22 22:04:08,097 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 295 transitions. [2022-07-22 22:04:08,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2022-07-22 22:04:08,099 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:04:08,099 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:04:08,121 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-07-22 22:04:08,307 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:04:08,307 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:04:08,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:04:08,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1798085459, now seen corresponding path program 1 times [2022-07-22 22:04:08,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:04:08,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517646572] [2022-07-22 22:04:08,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:04:08,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:04:08,347 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:04:08,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [806405770] [2022-07-22 22:04:08,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:04:08,348 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:04:08,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:04:08,349 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) [2022-07-22 22:04:08,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-07-22 22:04:08,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:08,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 2633 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 22:04:08,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:04:08,792 INFO L134 CoverageAnalysis]: Checked inductivity of 352 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 224 trivial. 0 not checked. [2022-07-22 22:04:08,792 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:04:08,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:04:08,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517646572] [2022-07-22 22:04:08,792 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:04:08,792 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [806405770] [2022-07-22 22:04:08,793 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [806405770] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:04:08,793 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:04:08,793 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 22:04:08,793 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [692296697] [2022-07-22 22:04:08,793 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:04:08,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 22:04:08,794 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:04:08,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 22:04:08,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 22:04:08,794 INFO L87 Difference]: Start difference. First operand 213 states and 295 transitions. Second operand has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-22 22:04:09,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:04:09,089 INFO L93 Difference]: Finished difference Result 382 states and 524 transitions. [2022-07-22 22:04:09,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 22:04:09,090 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) Word has length 181 [2022-07-22 22:04:09,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:04:09,091 INFO L225 Difference]: With dead ends: 382 [2022-07-22 22:04:09,091 INFO L226 Difference]: Without dead ends: 213 [2022-07-22 22:04:09,092 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 177 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-07-22 22:04:09,092 INFO L413 NwaCegarLoop]: 207 mSDtfsCounter, 305 mSDsluCounter, 707 mSDsCounter, 0 mSdLazyCounter, 284 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 305 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 432 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 284 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 22:04:09,093 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [305 Valid, 914 Invalid, 432 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 284 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 22:04:09,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2022-07-22 22:04:09,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 213. [2022-07-22 22:04:09,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 122 states have (on average 1.1639344262295082) internal successors, (142), 124 states have internal predecessors, (142), 71 states have call successors, (71), 17 states have call predecessors, (71), 19 states have return successors, (77), 71 states have call predecessors, (77), 70 states have call successors, (77) [2022-07-22 22:04:09,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 290 transitions. [2022-07-22 22:04:09,101 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 290 transitions. Word has length 181 [2022-07-22 22:04:09,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:04:09,101 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 290 transitions. [2022-07-22 22:04:09,101 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.0) internal successors, (63), 7 states have internal predecessors, (63), 4 states have call successors, (27), 2 states have call predecessors, (27), 3 states have return successors, (26), 4 states have call predecessors, (26), 4 states have call successors, (26) [2022-07-22 22:04:09,101 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 290 transitions. [2022-07-22 22:04:09,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2022-07-22 22:04:09,103 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:04:09,103 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:04:09,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-07-22 22:04:09,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:04:09,324 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:04:09,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:04:09,325 INFO L85 PathProgramCache]: Analyzing trace with hash -71678011, now seen corresponding path program 1 times [2022-07-22 22:04:09,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:04:09,325 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732843917] [2022-07-22 22:04:09,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:04:09,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:04:09,384 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:04:09,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [294750797] [2022-07-22 22:04:09,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:04:09,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:04:09,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:04:09,386 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) [2022-07-22 22:04:09,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-07-22 22:04:09,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:09,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 2787 conjuncts, 7 conjunts are in the unsatisfiable core [2022-07-22 22:04:09,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:04:09,856 INFO L134 CoverageAnalysis]: Checked inductivity of 375 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2022-07-22 22:04:09,856 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:04:09,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:04:09,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732843917] [2022-07-22 22:04:09,857 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:04:09,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294750797] [2022-07-22 22:04:09,857 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294750797] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:04:09,857 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:04:09,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-07-22 22:04:09,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082579210] [2022-07-22 22:04:09,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:04:09,858 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-07-22 22:04:09,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:04:09,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-07-22 22:04:09,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-07-22 22:04:09,859 INFO L87 Difference]: Start difference. First operand 213 states and 290 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-07-22 22:04:10,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:04:10,136 INFO L93 Difference]: Finished difference Result 379 states and 509 transitions. [2022-07-22 22:04:10,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-07-22 22:04:10,137 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) Word has length 195 [2022-07-22 22:04:10,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:04:10,139 INFO L225 Difference]: With dead ends: 379 [2022-07-22 22:04:10,139 INFO L226 Difference]: Without dead ends: 211 [2022-07-22 22:04:10,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 200 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2022-07-22 22:04:10,140 INFO L413 NwaCegarLoop]: 205 mSDtfsCounter, 304 mSDsluCounter, 704 mSDsCounter, 0 mSdLazyCounter, 289 mSolverCounterSat, 131 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 304 SdHoareTripleChecker+Valid, 909 SdHoareTripleChecker+Invalid, 420 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 131 IncrementalHoareTripleChecker+Valid, 289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 22:04:10,140 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [304 Valid, 909 Invalid, 420 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [131 Valid, 289 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 22:04:10,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2022-07-22 22:04:10,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 211. [2022-07-22 22:04:10,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 121 states have (on average 1.1570247933884297) internal successors, (140), 122 states have internal predecessors, (140), 71 states have call successors, (71), 17 states have call predecessors, (71), 18 states have return successors, (72), 71 states have call predecessors, (72), 70 states have call successors, (72) [2022-07-22 22:04:10,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 283 transitions. [2022-07-22 22:04:10,150 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 283 transitions. Word has length 195 [2022-07-22 22:04:10,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:04:10,150 INFO L495 AbstractCegarLoop]: Abstraction has 211 states and 283 transitions. [2022-07-22 22:04:10,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 7 states have internal predecessors, (64), 4 states have call successors, (26), 2 states have call predecessors, (26), 3 states have return successors, (25), 4 states have call predecessors, (25), 4 states have call successors, (25) [2022-07-22 22:04:10,150 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 283 transitions. [2022-07-22 22:04:10,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2022-07-22 22:04:10,152 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:04:10,152 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:04:10,177 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-07-22 22:04:10,367 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:04:10,368 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:04:10,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:04:10,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1712202978, now seen corresponding path program 1 times [2022-07-22 22:04:10,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:04:10,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144267974] [2022-07-22 22:04:10,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:04:10,368 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:04:10,417 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:04:10,418 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [712977995] [2022-07-22 22:04:10,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:04:10,418 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:04:10,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:04:10,419 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) [2022-07-22 22:04:10,420 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-07-22 22:04:10,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:10,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 2928 conjuncts, 5 conjunts are in the unsatisfiable core [2022-07-22 22:04:10,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:04:10,848 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 429 trivial. 0 not checked. [2022-07-22 22:04:10,848 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:04:10,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:04:10,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144267974] [2022-07-22 22:04:10,849 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:04:10,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [712977995] [2022-07-22 22:04:10,849 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [712977995] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:04:10,849 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:04:10,849 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-07-22 22:04:10,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1136814915] [2022-07-22 22:04:10,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:04:10,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-07-22 22:04:10,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:04:10,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-07-22 22:04:10,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-07-22 22:04:10,851 INFO L87 Difference]: Start difference. First operand 211 states and 283 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) [2022-07-22 22:04:10,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:04:10,885 INFO L93 Difference]: Finished difference Result 269 states and 354 transitions. [2022-07-22 22:04:10,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 22:04:10,886 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) Word has length 210 [2022-07-22 22:04:10,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:04:10,887 INFO L225 Difference]: With dead ends: 269 [2022-07-22 22:04:10,887 INFO L226 Difference]: Without dead ends: 220 [2022-07-22 22:04:10,888 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-07-22 22:04:10,888 INFO L413 NwaCegarLoop]: 276 mSDtfsCounter, 3 mSDsluCounter, 1087 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1363 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-07-22 22:04:10,888 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1363 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-07-22 22:04:10,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2022-07-22 22:04:10,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 213. [2022-07-22 22:04:10,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 213 states, 123 states have (on average 1.1544715447154472) internal successors, (142), 124 states have internal predecessors, (142), 71 states have call successors, (71), 17 states have call predecessors, (71), 18 states have return successors, (72), 71 states have call predecessors, (72), 70 states have call successors, (72) [2022-07-22 22:04:10,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 285 transitions. [2022-07-22 22:04:10,896 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 285 transitions. Word has length 210 [2022-07-22 22:04:10,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:04:10,896 INFO L495 AbstractCegarLoop]: Abstraction has 213 states and 285 transitions. [2022-07-22 22:04:10,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 2 states have call successors, (25), 2 states have call predecessors, (25), 2 states have return successors, (24), 2 states have call predecessors, (24), 1 states have call successors, (24) [2022-07-22 22:04:10,897 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 285 transitions. [2022-07-22 22:04:10,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2022-07-22 22:04:10,898 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:04:10,898 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:04:10,919 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-07-22 22:04:11,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:04:11,111 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:04:11,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:04:11,112 INFO L85 PathProgramCache]: Analyzing trace with hash 870357412, now seen corresponding path program 1 times [2022-07-22 22:04:11,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:04:11,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436175324] [2022-07-22 22:04:11,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:04:11,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:04:11,159 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:04:11,159 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [312217991] [2022-07-22 22:04:11,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:04:11,159 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:04:11,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:04:11,161 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) [2022-07-22 22:04:11,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-07-22 22:04:11,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:04:11,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 3056 conjuncts, 114 conjunts are in the unsatisfiable core [2022-07-22 22:04:11,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:04:11,990 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_996 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| v_ArrVal_996))) (exists ((v_ArrVal_995 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| v_ArrVal_995) |c_#memory_$Pointer$.base|))) is different from true [2022-07-22 22:04:12,033 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-22 22:04:12,034 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 [2022-07-22 22:04:12,039 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 [2022-07-22 22:04:12,049 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-07-22 22:04:12,049 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 [2022-07-22 22:04:12,053 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 [2022-07-22 22:04:14,182 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_999 Int) (v_ArrVal_998 Int)) (and (= |c_#memory_$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$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_999))) (= |c_#memory_$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_998))))) is different from true [2022-07-22 22:04:38,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:04:38,537 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 25 treesize of output 24 [2022-07-22 22:04:38,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:04:38,541 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 25 treesize of output 24 [2022-07-22 22:04:38,859 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 19 treesize of output 7 [2022-07-22 22:04:38,861 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 19 treesize of output 7 [2022-07-22 22:04:38,939 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 312 proven. 33 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2022-07-22 22:04:38,939 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:04:45,513 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:04:45,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436175324] [2022-07-22 22:04:45,513 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:04:45,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [312217991] [2022-07-22 22:04:45,513 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [312217991] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:04:45,514 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:04:45,514 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27] total 27 [2022-07-22 22:04:45,514 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143399441] [2022-07-22 22:04:45,514 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-22 22:04:45,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-07-22 22:04:45,515 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:04:45,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-07-22 22:04:45,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1018, Unknown=12, NotChecked=130, Total=1260 [2022-07-22 22:04:45,516 INFO L87 Difference]: Start difference. First operand 213 states and 285 transitions. Second operand has 27 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 12 states have call successors, (32), 4 states have call predecessors, (32), 8 states have return successors, (31), 11 states have call predecessors, (31), 12 states have call successors, (31) [2022-07-22 22:05:04,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:05:04,930 INFO L93 Difference]: Finished difference Result 432 states and 599 transitions. [2022-07-22 22:05:04,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-22 22:05:04,931 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 12 states have call successors, (32), 4 states have call predecessors, (32), 8 states have return successors, (31), 11 states have call predecessors, (31), 12 states have call successors, (31) Word has length 226 [2022-07-22 22:05:04,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:05:04,932 INFO L225 Difference]: With dead ends: 432 [2022-07-22 22:05:04,933 INFO L226 Difference]: Without dead ends: 252 [2022-07-22 22:05:04,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 362 GetRequests, 304 SyntacticMatches, 13 SemanticMatches, 45 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 573 ImplicationChecksByTransitivity, 51.2s TimeCoverageRelationStatistics Valid=183, Invalid=1785, Unknown=20, NotChecked=174, Total=2162 [2022-07-22 22:05:04,934 INFO L413 NwaCegarLoop]: 228 mSDtfsCounter, 97 mSDsluCounter, 1569 mSDsCounter, 0 mSdLazyCounter, 2043 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 1797 SdHoareTripleChecker+Invalid, 3489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 2043 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1368 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-07-22 22:05:04,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [114 Valid, 1797 Invalid, 3489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [78 Valid, 2043 Invalid, 0 Unknown, 1368 Unchecked, 1.1s Time] [2022-07-22 22:05:04,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-07-22 22:05:04,946 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 239. [2022-07-22 22:05:04,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 139 states have (on average 1.1510791366906474) internal successors, (160), 142 states have internal predecessors, (160), 76 states have call successors, (76), 19 states have call predecessors, (76), 23 states have return successors, (109), 77 states have call predecessors, (109), 75 states have call successors, (109) [2022-07-22 22:05:04,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 345 transitions. [2022-07-22 22:05:04,949 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 345 transitions. Word has length 226 [2022-07-22 22:05:04,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:05:04,952 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 345 transitions. [2022-07-22 22:05:04,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 24 states have (on average 3.8333333333333335) internal successors, (92), 25 states have internal predecessors, (92), 12 states have call successors, (32), 4 states have call predecessors, (32), 8 states have return successors, (31), 11 states have call predecessors, (31), 12 states have call successors, (31) [2022-07-22 22:05:04,952 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 345 transitions. [2022-07-22 22:05:04,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-07-22 22:05:04,955 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:05:04,955 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:05:04,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-07-22 22:05:05,163 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,SelfDestructingSolverStorable7 [2022-07-22 22:05:05,163 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:05:05,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:05:05,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1241589422, now seen corresponding path program 2 times [2022-07-22 22:05:05,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:05:05,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030505025] [2022-07-22 22:05:05,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:05:05,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:05:05,216 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:05:05,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1024471952] [2022-07-22 22:05:05,216 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 22:05:05,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:05:05,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:05:05,232 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) [2022-07-22 22:05:05,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-07-22 22:05:07,016 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 22:05:07,017 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 22:05:07,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 3060 conjuncts, 28 conjunts are in the unsatisfiable core [2022-07-22 22:05:07,037 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:05:07,115 INFO L134 CoverageAnalysis]: Checked inductivity of 520 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 213 trivial. 0 not checked. [2022-07-22 22:05:07,116 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:05:07,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:05:07,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030505025] [2022-07-22 22:05:07,116 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:05:07,116 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024471952] [2022-07-22 22:05:07,116 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024471952] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:05:07,117 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:05:07,117 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-07-22 22:05:07,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479763736] [2022-07-22 22:05:07,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:05:07,117 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-07-22 22:05:07,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:05:07,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-07-22 22:05:07,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2022-07-22 22:05:07,118 INFO L87 Difference]: Start difference. First operand 239 states and 345 transitions. Second operand has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 9 states have internal predecessors, (82), 3 states have call successors, (29), 2 states have call predecessors, (29), 6 states have return successors, (29), 5 states have call predecessors, (29), 3 states have call successors, (29) [2022-07-22 22:05:07,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:05:07,364 INFO L93 Difference]: Finished difference Result 436 states and 638 transitions. [2022-07-22 22:05:07,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-07-22 22:05:07,365 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 9 states have internal predecessors, (82), 3 states have call successors, (29), 2 states have call predecessors, (29), 6 states have return successors, (29), 5 states have call predecessors, (29), 3 states have call successors, (29) Word has length 232 [2022-07-22 22:05:07,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:05:07,366 INFO L225 Difference]: With dead ends: 436 [2022-07-22 22:05:07,366 INFO L226 Difference]: Without dead ends: 246 [2022-07-22 22:05:07,367 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2022-07-22 22:05:07,367 INFO L413 NwaCegarLoop]: 274 mSDtfsCounter, 11 mSDsluCounter, 2638 mSDsCounter, 0 mSdLazyCounter, 349 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 2912 SdHoareTripleChecker+Invalid, 349 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-07-22 22:05:07,368 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 2912 Invalid, 349 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 349 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-07-22 22:05:07,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2022-07-22 22:05:07,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2022-07-22 22:05:07,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 145 states have (on average 1.1517241379310346) internal successors, (167), 149 states have internal predecessors, (167), 76 states have call successors, (76), 19 states have call predecessors, (76), 24 states have return successors, (120), 77 states have call predecessors, (120), 75 states have call successors, (120) [2022-07-22 22:05:07,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 363 transitions. [2022-07-22 22:05:07,378 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 363 transitions. Word has length 232 [2022-07-22 22:05:07,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:05:07,378 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 363 transitions. [2022-07-22 22:05:07,379 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 7.454545454545454) internal successors, (82), 9 states have internal predecessors, (82), 3 states have call successors, (29), 2 states have call predecessors, (29), 6 states have return successors, (29), 5 states have call predecessors, (29), 3 states have call successors, (29) [2022-07-22 22:05:07,379 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 363 transitions. [2022-07-22 22:05:07,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 251 [2022-07-22 22:05:07,380 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:05:07,380 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:05:07,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-07-22 22:05:07,605 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:05:07,605 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:05:07,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:05:07,606 INFO L85 PathProgramCache]: Analyzing trace with hash 413253233, now seen corresponding path program 1 times [2022-07-22 22:05:07,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:05:07,606 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685699432] [2022-07-22 22:05:07,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:05:07,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:05:07,653 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:05:07,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [276026086] [2022-07-22 22:05:07,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:05:07,655 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:05:07,655 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:05:07,656 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) [2022-07-22 22:05:07,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-07-22 22:05:08,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:05:08,090 INFO L263 TraceCheckSpWp]: Trace formula consists of 3107 conjuncts, 43 conjunts are in the unsatisfiable core [2022-07-22 22:05:08,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:05:08,135 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 21 treesize of output 9 [2022-07-22 22:05:08,326 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 263 proven. 17 refuted. 0 times theorem prover too weak. 263 trivial. 0 not checked. [2022-07-22 22:05:08,326 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:05:08,941 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 50 proven. 35 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2022-07-22 22:05:08,941 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:05:08,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685699432] [2022-07-22 22:05:08,942 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:05:08,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276026086] [2022-07-22 22:05:08,942 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276026086] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 22:05:08,942 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 22:05:08,942 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 15] total 26 [2022-07-22 22:05:08,943 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1667255043] [2022-07-22 22:05:08,943 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 22:05:08,944 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-07-22 22:05:08,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:05:08,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-07-22 22:05:08,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=595, Unknown=0, NotChecked=0, Total=650 [2022-07-22 22:05:08,945 INFO L87 Difference]: Start difference. First operand 246 states and 363 transitions. Second operand has 26 states, 21 states have (on average 5.285714285714286) internal successors, (111), 19 states have internal predecessors, (111), 7 states have call successors, (40), 3 states have call predecessors, (40), 8 states have return successors, (42), 9 states have call predecessors, (42), 6 states have call successors, (42) [2022-07-22 22:05:09,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:05:09,662 INFO L93 Difference]: Finished difference Result 446 states and 655 transitions. [2022-07-22 22:05:09,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-07-22 22:05:09,663 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 21 states have (on average 5.285714285714286) internal successors, (111), 19 states have internal predecessors, (111), 7 states have call successors, (40), 3 states have call predecessors, (40), 8 states have return successors, (42), 9 states have call predecessors, (42), 6 states have call successors, (42) Word has length 250 [2022-07-22 22:05:09,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:05:09,664 INFO L225 Difference]: With dead ends: 446 [2022-07-22 22:05:09,664 INFO L226 Difference]: Without dead ends: 260 [2022-07-22 22:05:09,666 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 473 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=909, Unknown=0, NotChecked=0, Total=992 [2022-07-22 22:05:09,666 INFO L413 NwaCegarLoop]: 263 mSDtfsCounter, 24 mSDsluCounter, 5010 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 5273 SdHoareTripleChecker+Invalid, 1095 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-07-22 22:05:09,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 5273 Invalid, 1095 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-07-22 22:05:09,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-07-22 22:05:09,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 246. [2022-07-22 22:05:09,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 145 states have (on average 1.1517241379310346) internal successors, (167), 149 states have internal predecessors, (167), 76 states have call successors, (76), 19 states have call predecessors, (76), 24 states have return successors, (118), 77 states have call predecessors, (118), 75 states have call successors, (118) [2022-07-22 22:05:09,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 361 transitions. [2022-07-22 22:05:09,677 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 361 transitions. Word has length 250 [2022-07-22 22:05:09,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:05:09,678 INFO L495 AbstractCegarLoop]: Abstraction has 246 states and 361 transitions. [2022-07-22 22:05:09,678 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 21 states have (on average 5.285714285714286) internal successors, (111), 19 states have internal predecessors, (111), 7 states have call successors, (40), 3 states have call predecessors, (40), 8 states have return successors, (42), 9 states have call predecessors, (42), 6 states have call successors, (42) [2022-07-22 22:05:09,678 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 361 transitions. [2022-07-22 22:05:09,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2022-07-22 22:05:09,679 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:05:09,679 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:05:09,703 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-07-22 22:05:09,899 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,SelfDestructingSolverStorable9 [2022-07-22 22:05:09,900 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:05:09,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:05:09,900 INFO L85 PathProgramCache]: Analyzing trace with hash -905056813, now seen corresponding path program 2 times [2022-07-22 22:05:09,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:05:09,900 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [557045627] [2022-07-22 22:05:09,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:05:09,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:05:09,980 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:05:09,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1110215829] [2022-07-22 22:05:09,980 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 22:05:09,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:05:09,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:05:09,982 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) [2022-07-22 22:05:09,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-07-22 22:05:11,499 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 22:05:11,499 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 22:05:11,516 INFO L263 TraceCheckSpWp]: Trace formula consists of 3095 conjuncts, 83 conjunts are in the unsatisfiable core [2022-07-22 22:05:11,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:05:11,559 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 21 treesize of output 9 [2022-07-22 22:05:13,938 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_1532 Int) (v_ArrVal_1534 Int)) (and (= |c_#memory_$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$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_1532))) (= |c_#memory_$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_1534))))) is different from true [2022-07-22 22:05:34,928 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 337 proven. 18 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2022-07-22 22:05:34,928 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:05:37,308 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_84| Int) (v_ArrVal_1547 Int) (v_ArrVal_1548 Int)) (let ((.cse0 (+ |c_ULTIMATE.start_aws_array_list_copy_~from#1.offset| 32))) (or (not (= (select (select (store |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_84| (store (select |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_84|) 0 v_ArrVal_1548)) |c_ULTIMATE.start_aws_array_list_copy_~from#1.base|) .cse0) 0)) (not (= (select (select (store |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_84| (store (select |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_84|) 0 v_ArrVal_1547)) |c_ULTIMATE.start_aws_array_list_copy_~from#1.base|) .cse0) 0))))) is different from false [2022-07-22 22:05:37,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:05:37,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [557045627] [2022-07-22 22:05:37,310 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:05:37,310 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1110215829] [2022-07-22 22:05:37,310 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1110215829] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:05:37,310 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:05:37,310 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23] total 23 [2022-07-22 22:05:37,310 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97388538] [2022-07-22 22:05:37,310 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-22 22:05:37,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-07-22 22:05:37,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:05:37,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-07-22 22:05:37,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=541, Unknown=8, NotChecked=94, Total=702 [2022-07-22 22:05:37,311 INFO L87 Difference]: Start difference. First operand 246 states and 361 transitions. Second operand has 23 states, 19 states have (on average 5.0) internal successors, (95), 21 states have internal predecessors, (95), 9 states have call successors, (33), 4 states have call predecessors, (33), 7 states have return successors, (32), 8 states have call predecessors, (32), 9 states have call successors, (32) [2022-07-22 22:05:38,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:05:38,829 INFO L93 Difference]: Finished difference Result 456 states and 663 transitions. [2022-07-22 22:05:38,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-07-22 22:05:38,829 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 19 states have (on average 5.0) internal successors, (95), 21 states have internal predecessors, (95), 9 states have call successors, (33), 4 states have call predecessors, (33), 7 states have return successors, (32), 8 states have call predecessors, (32), 9 states have call successors, (32) Word has length 232 [2022-07-22 22:05:38,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:05:38,834 INFO L225 Difference]: With dead ends: 456 [2022-07-22 22:05:38,834 INFO L226 Difference]: Without dead ends: 270 [2022-07-22 22:05:38,835 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 280 SyntacticMatches, 3 SemanticMatches, 39 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 193 ImplicationChecksByTransitivity, 25.7s TimeCoverageRelationStatistics Valid=137, Invalid=1345, Unknown=8, NotChecked=150, Total=1640 [2022-07-22 22:05:38,835 INFO L413 NwaCegarLoop]: 220 mSDtfsCounter, 120 mSDsluCounter, 1475 mSDsCounter, 0 mSdLazyCounter, 1687 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 1695 SdHoareTripleChecker+Invalid, 3267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1476 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-07-22 22:05:38,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 1695 Invalid, 3267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [104 Valid, 1687 Invalid, 0 Unknown, 1476 Unchecked, 1.0s Time] [2022-07-22 22:05:38,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2022-07-22 22:05:38,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 250. [2022-07-22 22:05:38,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 250 states, 148 states have (on average 1.1486486486486487) internal successors, (170), 152 states have internal predecessors, (170), 76 states have call successors, (76), 20 states have call predecessors, (76), 25 states have return successors, (117), 77 states have call predecessors, (117), 75 states have call successors, (117) [2022-07-22 22:05:38,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 363 transitions. [2022-07-22 22:05:38,845 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 363 transitions. Word has length 232 [2022-07-22 22:05:38,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:05:38,846 INFO L495 AbstractCegarLoop]: Abstraction has 250 states and 363 transitions. [2022-07-22 22:05:38,846 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 19 states have (on average 5.0) internal successors, (95), 21 states have internal predecessors, (95), 9 states have call successors, (33), 4 states have call predecessors, (33), 7 states have return successors, (32), 8 states have call predecessors, (32), 9 states have call successors, (32) [2022-07-22 22:05:38,846 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 363 transitions. [2022-07-22 22:05:38,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-07-22 22:05:38,847 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:05:38,848 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:05:38,876 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-07-22 22:05:39,062 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,SelfDestructingSolverStorable10 [2022-07-22 22:05:39,063 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:05:39,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:05:39,063 INFO L85 PathProgramCache]: Analyzing trace with hash 1286019851, now seen corresponding path program 1 times [2022-07-22 22:05:39,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:05:39,063 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392102743] [2022-07-22 22:05:39,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:05:39,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:05:39,104 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:05:39,105 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1116658431] [2022-07-22 22:05:39,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:05:39,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:05:39,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:05:39,106 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) [2022-07-22 22:05:39,107 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-07-22 22:05:39,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:05:39,561 INFO L263 TraceCheckSpWp]: Trace formula consists of 3095 conjuncts, 8 conjunts are in the unsatisfiable core [2022-07-22 22:05:39,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:05:39,609 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 227 proven. 0 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2022-07-22 22:05:39,610 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:05:39,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:05:39,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392102743] [2022-07-22 22:05:39,610 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:05:39,610 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1116658431] [2022-07-22 22:05:39,610 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1116658431] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:05:39,610 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:05:39,610 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-07-22 22:05:39,611 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423358067] [2022-07-22 22:05:39,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:05:39,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-07-22 22:05:39,611 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:05:39,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-07-22 22:05:39,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-07-22 22:05:39,612 INFO L87 Difference]: Start difference. First operand 250 states and 363 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-22 22:05:39,793 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:05:39,794 INFO L93 Difference]: Finished difference Result 489 states and 757 transitions. [2022-07-22 22:05:39,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-07-22 22:05:39,794 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 234 [2022-07-22 22:05:39,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:05:39,795 INFO L225 Difference]: With dead ends: 489 [2022-07-22 22:05:39,795 INFO L226 Difference]: Without dead ends: 260 [2022-07-22 22:05:39,796 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 231 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-07-22 22:05:39,797 INFO L413 NwaCegarLoop]: 284 mSDtfsCounter, 7 mSDsluCounter, 767 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 1051 SdHoareTripleChecker+Invalid, 107 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-07-22 22:05:39,797 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 1051 Invalid, 107 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-07-22 22:05:39,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states. [2022-07-22 22:05:39,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 252. [2022-07-22 22:05:39,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 252 states, 150 states have (on average 1.1466666666666667) internal successors, (172), 154 states have internal predecessors, (172), 76 states have call successors, (76), 20 states have call predecessors, (76), 25 states have return successors, (117), 77 states have call predecessors, (117), 75 states have call successors, (117) [2022-07-22 22:05:39,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 252 states to 252 states and 365 transitions. [2022-07-22 22:05:39,808 INFO L78 Accepts]: Start accepts. Automaton has 252 states and 365 transitions. Word has length 234 [2022-07-22 22:05:39,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:05:39,808 INFO L495 AbstractCegarLoop]: Abstraction has 252 states and 365 transitions. [2022-07-22 22:05:39,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 2 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2022-07-22 22:05:39,809 INFO L276 IsEmpty]: Start isEmpty. Operand 252 states and 365 transitions. [2022-07-22 22:05:39,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2022-07-22 22:05:39,810 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:05:39,810 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:05:39,849 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-07-22 22:05:40,031 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,SelfDestructingSolverStorable11 [2022-07-22 22:05:40,032 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:05:40,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:05:40,032 INFO L85 PathProgramCache]: Analyzing trace with hash 1526259597, now seen corresponding path program 1 times [2022-07-22 22:05:40,032 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:05:40,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181003851] [2022-07-22 22:05:40,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:05:40,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:05:40,078 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:05:40,084 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1456572356] [2022-07-22 22:05:40,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:05:40,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:05:40,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:05:40,086 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) [2022-07-22 22:05:40,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-07-22 22:05:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:05:40,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 3100 conjuncts, 66 conjunts are in the unsatisfiable core [2022-07-22 22:05:40,599 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:05:40,638 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 [2022-07-22 22:05:40,696 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-07-22 22:05:40,696 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 [2022-07-22 22:05:42,748 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_1953 Int)) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_1953)) |c_#memory_$Pointer$.base|)) is different from true [2022-07-22 22:06:00,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:06:00,244 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 292 proven. 0 refuted. 0 times theorem prover too weak. 215 trivial. 0 not checked. [2022-07-22 22:06:00,244 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-07-22 22:06:00,244 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:06:00,244 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181003851] [2022-07-22 22:06:00,244 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:06:00,245 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1456572356] [2022-07-22 22:06:00,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1456572356] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-22 22:06:00,245 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-22 22:06:00,245 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2022-07-22 22:06:00,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830713349] [2022-07-22 22:06:00,245 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-22 22:06:00,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-07-22 22:06:00,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:06:00,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-07-22 22:06:00,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=255, Unknown=7, NotChecked=32, Total=342 [2022-07-22 22:06:00,246 INFO L87 Difference]: Start difference. First operand 252 states and 365 transitions. Second operand has 19 states, 17 states have (on average 5.529411764705882) internal successors, (94), 16 states have internal predecessors, (94), 8 states have call successors, (33), 4 states have call predecessors, (33), 7 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2022-07-22 22:06:01,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:06:01,127 INFO L93 Difference]: Finished difference Result 529 states and 804 transitions. [2022-07-22 22:06:01,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-07-22 22:06:01,128 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 17 states have (on average 5.529411764705882) internal successors, (94), 16 states have internal predecessors, (94), 8 states have call successors, (33), 4 states have call predecessors, (33), 7 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) Word has length 234 [2022-07-22 22:06:01,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:06:01,129 INFO L225 Difference]: With dead ends: 529 [2022-07-22 22:06:01,129 INFO L226 Difference]: Without dead ends: 326 [2022-07-22 22:06:01,131 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 216 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 19.6s TimeCoverageRelationStatistics Valid=66, Invalid=393, Unknown=7, NotChecked=40, Total=506 [2022-07-22 22:06:01,131 INFO L413 NwaCegarLoop]: 303 mSDtfsCounter, 132 mSDsluCounter, 1626 mSDsCounter, 0 mSdLazyCounter, 1353 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 201 SdHoareTripleChecker+Valid, 1929 SdHoareTripleChecker+Invalid, 3164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1727 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2022-07-22 22:06:01,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [201 Valid, 1929 Invalid, 3164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 1353 Invalid, 0 Unknown, 1727 Unchecked, 0.8s Time] [2022-07-22 22:06:01,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2022-07-22 22:06:01,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 258. [2022-07-22 22:06:01,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 258 states, 154 states have (on average 1.1428571428571428) internal successors, (176), 159 states have internal predecessors, (176), 76 states have call successors, (76), 21 states have call predecessors, (76), 27 states have return successors, (120), 77 states have call predecessors, (120), 75 states have call successors, (120) [2022-07-22 22:06:01,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 258 states to 258 states and 372 transitions. [2022-07-22 22:06:01,145 INFO L78 Accepts]: Start accepts. Automaton has 258 states and 372 transitions. Word has length 234 [2022-07-22 22:06:01,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:06:01,145 INFO L495 AbstractCegarLoop]: Abstraction has 258 states and 372 transitions. [2022-07-22 22:06:01,145 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 17 states have (on average 5.529411764705882) internal successors, (94), 16 states have internal predecessors, (94), 8 states have call successors, (33), 4 states have call predecessors, (33), 7 states have return successors, (32), 8 states have call predecessors, (32), 8 states have call successors, (32) [2022-07-22 22:06:01,145 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states and 372 transitions. [2022-07-22 22:06:01,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-07-22 22:06:01,146 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:06:01,147 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:06:01,170 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-07-22 22:06:01,359 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,SelfDestructingSolverStorable12 [2022-07-22 22:06:01,359 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:06:01,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:06:01,360 INFO L85 PathProgramCache]: Analyzing trace with hash 1862828068, now seen corresponding path program 1 times [2022-07-22 22:06:01,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:06:01,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728626676] [2022-07-22 22:06:01,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:06:01,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:06:01,402 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:06:01,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1016159580] [2022-07-22 22:06:01,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:06:01,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:06:01,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:06:01,403 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) [2022-07-22 22:06:01,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-07-22 22:06:01,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:06:01,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 3066 conjuncts, 99 conjunts are in the unsatisfiable core [2022-07-22 22:06:01,916 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:06:01,924 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-07-22 22:06:01,924 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 19 treesize of output 18 [2022-07-22 22:06:02,120 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-07-22 22:06:02,121 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 [2022-07-22 22:06:02,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:06:02,125 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 [2022-07-22 22:06:02,261 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2143 (Array Int Int))) (= |c_#memory_$Pointer$.offset| (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_2143))) (exists ((v_ArrVal_2142 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_2142)))) is different from true [2022-07-22 22:06:02,653 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:06:02,656 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 36 treesize of output 28 [2022-07-22 22:06:02,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:06:02,659 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 24 treesize of output 16 [2022-07-22 22:06:02,686 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 210 proven. 8 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2022-07-22 22:06:02,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:06:04,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:06:04,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728626676] [2022-07-22 22:06:04,414 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:06:04,414 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1016159580] [2022-07-22 22:06:04,414 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1016159580] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:06:04,414 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:06:04,414 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24] total 24 [2022-07-22 22:06:04,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269641580] [2022-07-22 22:06:04,414 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-22 22:06:04,415 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-07-22 22:06:04,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:06:04,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-07-22 22:06:04,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=728, Unknown=7, NotChecked=54, Total=870 [2022-07-22 22:06:04,416 INFO L87 Difference]: Start difference. First operand 258 states and 372 transitions. Second operand has 24 states, 20 states have (on average 4.25) internal successors, (85), 19 states have internal predecessors, (85), 8 states have call successors, (30), 7 states have call predecessors, (30), 8 states have return successors, (29), 7 states have call predecessors, (29), 8 states have call successors, (29) [2022-07-22 22:06:05,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:06:05,599 INFO L93 Difference]: Finished difference Result 529 states and 763 transitions. [2022-07-22 22:06:05,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-07-22 22:06:05,599 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 20 states have (on average 4.25) internal successors, (85), 19 states have internal predecessors, (85), 8 states have call successors, (30), 7 states have call predecessors, (30), 8 states have return successors, (29), 7 states have call predecessors, (29), 8 states have call successors, (29) Word has length 230 [2022-07-22 22:06:05,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:06:05,601 INFO L225 Difference]: With dead ends: 529 [2022-07-22 22:06:05,601 INFO L226 Difference]: Without dead ends: 291 [2022-07-22 22:06:05,602 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 421 GetRequests, 377 SyntacticMatches, 4 SemanticMatches, 40 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 314 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=170, Invalid=1450, Unknown=24, NotChecked=78, Total=1722 [2022-07-22 22:06:05,603 INFO L413 NwaCegarLoop]: 239 mSDtfsCounter, 232 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 1511 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 1482 SdHoareTripleChecker+Invalid, 3381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 1511 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1587 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-07-22 22:06:05,604 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 1482 Invalid, 3381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 1511 Invalid, 0 Unknown, 1587 Unchecked, 0.9s Time] [2022-07-22 22:06:05,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2022-07-22 22:06:05,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 273. [2022-07-22 22:06:05,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 164 states have (on average 1.1341463414634145) internal successors, (186), 170 states have internal predecessors, (186), 77 states have call successors, (77), 24 states have call predecessors, (77), 31 states have return successors, (139), 78 states have call predecessors, (139), 76 states have call successors, (139) [2022-07-22 22:06:05,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 402 transitions. [2022-07-22 22:06:05,622 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 402 transitions. Word has length 230 [2022-07-22 22:06:05,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:06:05,623 INFO L495 AbstractCegarLoop]: Abstraction has 273 states and 402 transitions. [2022-07-22 22:06:05,623 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 20 states have (on average 4.25) internal successors, (85), 19 states have internal predecessors, (85), 8 states have call successors, (30), 7 states have call predecessors, (30), 8 states have return successors, (29), 7 states have call predecessors, (29), 8 states have call successors, (29) [2022-07-22 22:06:05,623 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 402 transitions. [2022-07-22 22:06:05,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-07-22 22:06:05,624 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:06:05,624 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:06:05,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-07-22 22:06:05,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:06:05,834 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:06:05,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:06:05,834 INFO L85 PathProgramCache]: Analyzing trace with hash 664537688, now seen corresponding path program 2 times [2022-07-22 22:06:05,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:06:05,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1460802939] [2022-07-22 22:06:05,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:06:05,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:06:05,886 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:06:05,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2024970231] [2022-07-22 22:06:05,887 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 22:06:05,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:06:05,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:06:05,898 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) [2022-07-22 22:06:05,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-07-22 22:06:06,987 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 22:06:06,987 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 22:06:07,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 3066 conjuncts, 96 conjunts are in the unsatisfiable core [2022-07-22 22:06:07,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:06:07,017 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 10 treesize of output 8 [2022-07-22 22:06:07,325 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2339 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| v_ArrVal_2339))) (exists ((v_ArrVal_2338 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |c_ensure_array_list_has_allocated_data_member_#in~list.base| v_ArrVal_2338) |c_#memory_$Pointer$.offset|))) is different from true [2022-07-22 22:06:07,337 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 16 treesize of output 18 [2022-07-22 22:06:07,340 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 16 treesize of output 18 [2022-07-22 22:06:09,421 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_2341 Int) (v_ArrVal_2343 Int)) (and (= |c_#memory_$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$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_2341))) (= (store |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_$Pointer$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_2343)) |c_#memory_$Pointer$.base|))) is different from true [2022-07-22 22:06:11,438 WARN L855 $PredicateComparison]: unable to prove that (exists ((|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_2341 Int) (v_ArrVal_2343 Int)) (and (= |c_#memory_$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$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_2341))) (= |c_#memory_$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|) 0 v_ArrVal_2343))))) is different from true [2022-07-22 22:06:11,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:06:11,473 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 [2022-07-22 22:06:11,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:06:11,476 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 [2022-07-22 22:06:11,687 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 19 treesize of output 7 [2022-07-22 22:06:11,688 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 19 treesize of output 7 [2022-07-22 22:06:11,738 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 306 proven. 34 refuted. 0 times theorem prover too weak. 169 trivial. 7 not checked. [2022-07-22 22:06:11,739 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:06:14,142 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2357 Int) (v_ArrVal_2356 Int) (|v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_142| Int)) (= (let ((.cse0 (+ 32 |c_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.offset|))) (+ (select (select (store |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_142| (store (select |c_#memory_$Pointer$.offset| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_142|) 0 v_ArrVal_2357)) |c_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.base|) .cse0) (select (select (store |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_142| (store (select |c_#memory_$Pointer$.base| |v_aws_mul_size_checked_aws_mul_u64_checked_~r#1.base_142|) 0 v_ArrVal_2356)) |c_ULTIMATE.start_aws_array_list_copy_harness_~#from~0#1.base|) .cse0))) 0)) is different from false [2022-07-22 22:06:14,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:06:14,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1460802939] [2022-07-22 22:06:14,143 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:06:14,143 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024970231] [2022-07-22 22:06:14,143 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024970231] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:06:14,143 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:06:14,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2022-07-22 22:06:14,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451604744] [2022-07-22 22:06:14,144 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-22 22:06:14,144 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-22 22:06:14,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:06:14,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-22 22:06:14,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=589, Unknown=4, NotChecked=204, Total=870 [2022-07-22 22:06:14,145 INFO L87 Difference]: Start difference. First operand 273 states and 402 transitions. Second operand has 21 states, 19 states have (on average 5.157894736842105) internal successors, (98), 21 states have internal predecessors, (98), 11 states have call successors, (32), 4 states have call predecessors, (32), 8 states have return successors, (31), 10 states have call predecessors, (31), 11 states have call successors, (31) [2022-07-22 22:06:32,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:06:32,203 INFO L93 Difference]: Finished difference Result 493 states and 724 transitions. [2022-07-22 22:06:32,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-07-22 22:06:32,203 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 19 states have (on average 5.157894736842105) internal successors, (98), 21 states have internal predecessors, (98), 11 states have call successors, (32), 4 states have call predecessors, (32), 8 states have return successors, (31), 10 states have call predecessors, (31), 11 states have call successors, (31) Word has length 230 [2022-07-22 22:06:32,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:06:32,205 INFO L225 Difference]: With dead ends: 493 [2022-07-22 22:06:32,205 INFO L226 Difference]: Without dead ends: 282 [2022-07-22 22:06:32,206 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 373 GetRequests, 316 SyntacticMatches, 13 SemanticMatches, 44 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 295 ImplicationChecksByTransitivity, 22.9s TimeCoverageRelationStatistics Valid=187, Invalid=1540, Unknown=11, NotChecked=332, Total=2070 [2022-07-22 22:06:32,206 INFO L413 NwaCegarLoop]: 236 mSDtfsCounter, 113 mSDsluCounter, 1511 mSDsCounter, 0 mSdLazyCounter, 2750 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 1747 SdHoareTripleChecker+Invalid, 4338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 2750 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1499 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2022-07-22 22:06:32,207 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 1747 Invalid, 4338 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 2750 Invalid, 0 Unknown, 1499 Unchecked, 1.6s Time] [2022-07-22 22:06:32,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2022-07-22 22:06:32,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 274. [2022-07-22 22:06:32,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 164 states have (on average 1.1341463414634145) internal successors, (186), 170 states have internal predecessors, (186), 78 states have call successors, (78), 24 states have call predecessors, (78), 31 states have return successors, (140), 79 states have call predecessors, (140), 77 states have call successors, (140) [2022-07-22 22:06:32,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 404 transitions. [2022-07-22 22:06:32,221 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 404 transitions. Word has length 230 [2022-07-22 22:06:32,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:06:32,222 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 404 transitions. [2022-07-22 22:06:32,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 19 states have (on average 5.157894736842105) internal successors, (98), 21 states have internal predecessors, (98), 11 states have call successors, (32), 4 states have call predecessors, (32), 8 states have return successors, (31), 10 states have call predecessors, (31), 11 states have call successors, (31) [2022-07-22 22:06:32,222 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 404 transitions. [2022-07-22 22:06:32,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2022-07-22 22:06:32,226 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:06:32,226 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:06:32,250 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-07-22 22:06:32,443 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,SelfDestructingSolverStorable14 [2022-07-22 22:06:32,443 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:06:32,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:06:32,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1507962452, now seen corresponding path program 1 times [2022-07-22 22:06:32,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:06:32,444 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868451611] [2022-07-22 22:06:32,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:06:32,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:06:32,486 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:06:32,486 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [526199559] [2022-07-22 22:06:32,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:06:32,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:06:32,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:06:32,488 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) [2022-07-22 22:06:32,493 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-07-22 22:06:32,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-22 22:06:32,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 3074 conjuncts, 31 conjunts are in the unsatisfiable core [2022-07-22 22:06:32,984 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:06:33,083 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 186 proven. 3 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2022-07-22 22:06:33,083 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:06:33,572 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 63 proven. 19 refuted. 0 times theorem prover too weak. 452 trivial. 0 not checked. [2022-07-22 22:06:33,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:06:33,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868451611] [2022-07-22 22:06:33,573 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:06:33,573 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526199559] [2022-07-22 22:06:33,573 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526199559] provided 0 perfect and 2 imperfect interpolant sequences [2022-07-22 22:06:33,573 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-07-22 22:06:33,573 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 21 [2022-07-22 22:06:33,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [965937314] [2022-07-22 22:06:33,573 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-07-22 22:06:33,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-07-22 22:06:33,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:06:33,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-07-22 22:06:33,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=375, Unknown=0, NotChecked=0, Total=420 [2022-07-22 22:06:33,574 INFO L87 Difference]: Start difference. First operand 274 states and 404 transitions. Second operand has 21 states, 18 states have (on average 5.444444444444445) internal successors, (98), 14 states have internal predecessors, (98), 5 states have call successors, (33), 3 states have call predecessors, (33), 7 states have return successors, (35), 8 states have call predecessors, (35), 4 states have call successors, (35) [2022-07-22 22:06:33,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-22 22:06:33,993 INFO L93 Difference]: Finished difference Result 463 states and 681 transitions. [2022-07-22 22:06:33,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-07-22 22:06:33,994 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 18 states have (on average 5.444444444444445) internal successors, (98), 14 states have internal predecessors, (98), 5 states have call successors, (33), 3 states have call predecessors, (33), 7 states have return successors, (35), 8 states have call predecessors, (35), 4 states have call successors, (35) Word has length 242 [2022-07-22 22:06:33,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-07-22 22:06:33,996 INFO L225 Difference]: With dead ends: 463 [2022-07-22 22:06:33,996 INFO L226 Difference]: Without dead ends: 274 [2022-07-22 22:06:33,997 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 486 GetRequests, 462 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=535, Unknown=0, NotChecked=0, Total=600 [2022-07-22 22:06:33,997 INFO L413 NwaCegarLoop]: 273 mSDtfsCounter, 12 mSDsluCounter, 4466 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 4739 SdHoareTripleChecker+Invalid, 598 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-07-22 22:06:33,997 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 4739 Invalid, 598 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-07-22 22:06:33,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2022-07-22 22:06:34,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 274. [2022-07-22 22:06:34,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 164 states have (on average 1.1341463414634145) internal successors, (186), 170 states have internal predecessors, (186), 78 states have call successors, (78), 24 states have call predecessors, (78), 31 states have return successors, (138), 79 states have call predecessors, (138), 77 states have call successors, (138) [2022-07-22 22:06:34,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 402 transitions. [2022-07-22 22:06:34,009 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 402 transitions. Word has length 242 [2022-07-22 22:06:34,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-07-22 22:06:34,010 INFO L495 AbstractCegarLoop]: Abstraction has 274 states and 402 transitions. [2022-07-22 22:06:34,010 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 18 states have (on average 5.444444444444445) internal successors, (98), 14 states have internal predecessors, (98), 5 states have call successors, (33), 3 states have call predecessors, (33), 7 states have return successors, (35), 8 states have call predecessors, (35), 4 states have call successors, (35) [2022-07-22 22:06:34,010 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 402 transitions. [2022-07-22 22:06:34,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2022-07-22 22:06:34,037 INFO L187 NwaCegarLoop]: Found error trace [2022-07-22 22:06:34,038 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-07-22 22:06:34,066 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-07-22 22:06:34,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-07-22 22:06:34,251 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-07-22 22:06:34,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-22 22:06:34,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1468116584, now seen corresponding path program 2 times [2022-07-22 22:06:34,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-22 22:06:34,252 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644566783] [2022-07-22 22:06:34,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-22 22:06:34,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-22 22:06:34,294 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-07-22 22:06:34,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [572793582] [2022-07-22 22:06:34,299 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-07-22 22:06:34,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-07-22 22:06:34,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-22 22:06:34,304 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-07-22 22:06:34,305 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-07-22 22:06:35,398 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-07-22 22:06:35,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-07-22 22:06:35,413 INFO L263 TraceCheckSpWp]: Trace formula consists of 3066 conjuncts, 137 conjunts are in the unsatisfiable core [2022-07-22 22:06:35,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-07-22 22:06:38,061 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2690 Int) (v_ArrVal_2691 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_2688 Int)) (and (= |c_#memory_$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$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_2691))) (= |c_#memory_$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_2690))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_2688)) |c_#memory_int|))) is different from true [2022-07-22 22:06:40,081 WARN L855 $PredicateComparison]: unable to prove that (exists ((v_ArrVal_2690 Int) (v_ArrVal_2691 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_2688 Int)) (and (= |c_#memory_$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$.offset)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_2690))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) 0 v_ArrVal_2688)) |c_#memory_int|) (= |c_#memory_$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|) 0 v_ArrVal_2691))))) is different from true [2022-07-22 22:06:40,120 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:06:40,121 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 33 treesize of output 32 [2022-07-22 22:06:40,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:06:40,126 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 33 treesize of output 32 [2022-07-22 22:06:40,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-07-22 22:06:40,129 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 24 treesize of output 23 [2022-07-22 22:06:42,462 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2693 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_2693) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_2692 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_2692))) (exists ((v_ArrVal_2694 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_2694)) |c_#memory_int|))) is different from true [2022-07-22 22:07:07,133 INFO L134 CoverageAnalysis]: Checked inductivity of 516 backedges. 207 proven. 12 refuted. 0 times theorem prover too weak. 274 trivial. 23 not checked. [2022-07-22 22:07:07,133 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-07-22 22:07:07,601 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_2714 (Array Int Int)) (v_ArrVal_2713 (Array Int Int)) (v_ArrVal_2712 Int) (|v_aws_array_list_is_valid_~#required_size~0.base_91| Int)) (let ((.cse0 (+ |c_ULTIMATE.start_aws_array_list_copy_~from#1.offset| 32))) (or (not (= (select (select (store |c_#memory_$Pointer$.base| |v_aws_array_list_is_valid_~#required_size~0.base_91| v_ArrVal_2713) |c_ULTIMATE.start_aws_array_list_copy_~from#1.base|) .cse0) 0)) (not (= (select (select (store |c_#memory_$Pointer$.offset| |v_aws_array_list_is_valid_~#required_size~0.base_91| v_ArrVal_2714) |c_ULTIMATE.start_aws_array_list_copy_~from#1.base|) .cse0) 0)) (not (= (mod (select (select (store |c_#memory_int| |v_aws_array_list_is_valid_~#required_size~0.base_91| (store (select |c_#memory_int| |v_aws_array_list_is_valid_~#required_size~0.base_91|) 0 v_ArrVal_2712)) |c_ULTIMATE.start_aws_array_list_copy_~from#1.base|) (+ |c_ULTIMATE.start_aws_array_list_copy_~from#1.offset| 8)) 18446744073709551616) 0))))) is different from false [2022-07-22 22:07:07,603 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-22 22:07:07,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644566783] [2022-07-22 22:07:07,603 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-07-22 22:07:07,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [572793582] [2022-07-22 22:07:07,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [572793582] provided 0 perfect and 1 imperfect interpolant sequences [2022-07-22 22:07:07,603 INFO L184 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2022-07-22 22:07:07,603 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2022-07-22 22:07:07,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579671180] [2022-07-22 22:07:07,603 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2022-07-22 22:07:07,603 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-07-22 22:07:07,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-22 22:07:07,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-07-22 22:07:07,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=830, Unknown=24, NotChecked=244, Total=1190 [2022-07-22 22:07:07,604 INFO L87 Difference]: Start difference. First operand 274 states and 402 transitions. Second operand has 31 states, 28 states have (on average 3.392857142857143) internal successors, (95), 28 states have internal predecessors, (95), 12 states have call successors, (32), 5 states have call predecessors, (32), 9 states have return successors, (31), 12 states have call predecessors, (31), 11 states have call successors, (31) [2022-07-22 22:07:07,803 WARN L855 $PredicateComparison]: unable to prove that (and (exists ((v_ArrVal_2693 (Array Int Int))) (= (store |c_old(#memory_$Pointer$.offset)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_2693) |c_#memory_$Pointer$.offset|)) (exists ((v_ArrVal_2692 (Array Int Int))) (= |c_#memory_$Pointer$.base| (store |c_old(#memory_$Pointer$.base)| |c_aws_mul_size_checked_#in~r#1.base| v_ArrVal_2692))) (exists ((v_ArrVal_2690 Int) (v_ArrVal_2691 Int) (|aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| Int) (v_ArrVal_2688 Int)) (and (= |c_#memory_$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$.base)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_2691))) (= |c_#memory_$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_2690))) (= (store |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base| (store (select |c_old(#memory_int)| |aws_mul_size_checked_aws_mul_u64_checked_~r#1.base|) |c_aws_mul_size_checked_#in~r#1.offset| v_ArrVal_2688)) |c_#memory_int|))) (exists ((v_ArrVal_2694 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_2694)) |c_#memory_int|))) is different from true