./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 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_ensure_capacity_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 c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 09:47:00,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 09:47:00,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 09:47:00,063 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 09:47:00,063 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 09:47:00,064 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 09:47:00,065 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 09:47:00,066 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 09:47:00,067 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 09:47:00,068 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 09:47:00,080 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 09:47:00,088 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 09:47:00,089 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 09:47:00,093 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 09:47:00,095 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 09:47:00,097 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 09:47:00,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 09:47:00,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 09:47:00,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 09:47:00,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 09:47:00,109 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 09:47:00,110 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 09:47:00,110 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 09:47:00,111 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 09:47:00,113 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 09:47:00,117 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 09:47:00,117 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 09:47:00,118 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 09:47:00,119 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 09:47:00,120 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 09:47:00,120 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 09:47:00,120 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 09:47:00,121 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 09:47:00,122 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 09:47:00,123 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 09:47:00,123 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 09:47:00,124 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 09:47:00,124 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 09:47:00,124 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 09:47:00,125 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 09:47:00,125 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 09:47:00,126 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 09:47:00,145 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 09:47:00,145 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 09:47:00,145 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 09:47:00,146 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 09:47:00,146 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 09:47:00,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 09:47:00,147 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 09:47:00,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 09:47:00,147 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 09:47:00,147 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 09:47:00,148 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 09:47:00,148 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 09:47:00,148 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 09:47:00,148 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 09:47:00,148 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 09:47:00,149 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 09:47:00,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 09:47:00,149 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 09:47:00,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 09:47:00,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 09:47:00,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 09:47:00,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 09:47:00,150 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 09:47:00,150 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 09:47:00,150 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 09:47:00,150 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 09:47:00,150 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 09:47:00,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 09:47:00,150 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 09:47:00,151 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c12ad62b7b197015493bfb3c1dd9a5de2922d9b16e39f249961c276d8b82591b [2021-11-06 09:47:00,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 09:47:00,371 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 09:47:00,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 09:47:00,374 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 09:47:00,375 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 09:47:00,376 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2021-11-06 09:47:00,437 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04b93c84c/88d8c33e42d24c89b477ad0c57675146/FLAG55226946f [2021-11-06 09:47:00,907 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 09:47:00,908 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_ensure_capacity_harness.i [2021-11-06 09:47:00,949 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04b93c84c/88d8c33e42d24c89b477ad0c57675146/FLAG55226946f [2021-11-06 09:47:01,192 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04b93c84c/88d8c33e42d24c89b477ad0c57675146 [2021-11-06 09:47:01,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 09:47:01,195 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 09:47:01,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 09:47:01,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 09:47:01,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 09:47:01,210 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:47:01" (1/1) ... [2021-11-06 09:47:01,211 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2461939a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:47:01, skipping insertion in model container [2021-11-06 09:47:01,211 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 09:47:01" (1/1) ... [2021-11-06 09:47:01,215 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 09:47:01,291 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 09:47:01,496 WARN L228 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_ensure_capacity_harness.i[4504,4517] [2021-11-06 09:47:01,501 WARN L228 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_ensure_capacity_harness.i[4564,4577] [2021-11-06 09:47:01,509 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-06 09:47:01,513 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-06 09:47:01,915 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-06 09:47:01,953 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:01,954 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:01,955 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:01,955 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:01,956 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:01,964 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:01,964 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:01,965 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:01,966 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:01,967 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:01,967 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:01,968 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:01,968 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:02,119 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-06 09:47:02,120 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-06 09:47:02,120 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-06 09:47:02,121 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-06 09:47:02,122 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-06 09:47:02,123 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-06 09:47:02,123 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-06 09:47:02,124 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-06 09:47:02,124 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-06 09:47:02,125 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-06 09:47:02,194 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:02,195 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:02,198 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:02,203 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:02,229 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:02,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 09:47:02,249 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 09:47:02,259 WARN L228 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_ensure_capacity_harness.i[4504,4517] [2021-11-06 09:47:02,259 WARN L228 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_ensure_capacity_harness.i[4564,4577] [2021-11-06 09:47:02,261 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-06 09:47:02,261 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-06 09:47:02,280 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-06 09:47:02,289 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:02,290 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:02,290 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:02,291 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:02,291 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:02,295 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:02,296 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:02,296 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:02,297 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:02,297 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:02,298 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:02,298 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:02,298 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:02,319 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-06 09:47:02,320 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-06 09:47:02,320 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-06 09:47:02,320 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-06 09:47:02,321 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-06 09:47:02,321 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-06 09:47:02,322 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-06 09:47:02,322 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-06 09:47:02,322 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-06 09:47:02,323 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-06 09:47:02,339 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:02,339 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:02,340 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:02,343 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:02,355 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 09:47:02,356 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 09:47:02,501 INFO L208 MainTranslator]: Completed translation [2021-11-06 09:47:02,502 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:47:02 WrapperNode [2021-11-06 09:47:02,502 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 09:47:02,503 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 09:47:02,503 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 09:47:02,503 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 09:47:02,508 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:47:02" (1/1) ... [2021-11-06 09:47:02,593 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:47:02" (1/1) ... [2021-11-06 09:47:02,681 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 09:47:02,682 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 09:47:02,682 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 09:47:02,682 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 09:47:02,688 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:47:02" (1/1) ... [2021-11-06 09:47:02,688 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:47:02" (1/1) ... [2021-11-06 09:47:02,706 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:47:02" (1/1) ... [2021-11-06 09:47:02,706 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:47:02" (1/1) ... [2021-11-06 09:47:02,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:47:02" (1/1) ... [2021-11-06 09:47:02,772 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:47:02" (1/1) ... [2021-11-06 09:47:02,782 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:47:02" (1/1) ... [2021-11-06 09:47:02,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 09:47:02,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 09:47:02,800 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 09:47:02,800 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 09:47:02,801 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:47:02" (1/1) ... [2021-11-06 09:47:02,807 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 09:47:02,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 09:47:02,837 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) [2021-11-06 09:47:02,875 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 [2021-11-06 09:47:02,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 09:47:02,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 09:47:02,900 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 09:47:02,900 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 09:47:02,901 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 09:47:02,901 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 09:47:02,901 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-06 09:47:02,901 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 09:47:02,901 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-06 09:47:02,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 09:47:02,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 09:47:02,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 09:47:02,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 09:47:10,820 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 09:47:10,821 INFO L299 CfgBuilder]: Removed 296 assume(true) statements. [2021-11-06 09:47:10,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:47:10 BoogieIcfgContainer [2021-11-06 09:47:10,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 09:47:10,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 09:47:10,824 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 09:47:10,826 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 09:47:10,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 09:47:01" (1/3) ... [2021-11-06 09:47:10,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1447b375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:47:10, skipping insertion in model container [2021-11-06 09:47:10,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 09:47:02" (2/3) ... [2021-11-06 09:47:10,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1447b375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 09:47:10, skipping insertion in model container [2021-11-06 09:47:10,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 09:47:10" (3/3) ... [2021-11-06 09:47:10,828 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_ensure_capacity_harness.i [2021-11-06 09:47:10,832 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 09:47:10,832 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 19 error locations. [2021-11-06 09:47:10,863 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 09:47:10,867 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2021-11-06 09:47:10,867 INFO L340 AbstractCegarLoop]: Starting to check reachability of 19 error locations. [2021-11-06 09:47:10,881 INFO L276 IsEmpty]: Start isEmpty. Operand has 349 states, 329 states have (on average 1.4164133738601823) internal successors, (466), 348 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:47:10,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-06 09:47:10,886 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 09:47:10,887 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 09:47:10,887 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-06 09:47:10,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 09:47:10,891 INFO L85 PathProgramCache]: Analyzing trace with hash -649269600, now seen corresponding path program 1 times [2021-11-06 09:47:10,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 09:47:10,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076485501] [2021-11-06 09:47:10,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:47:10,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 09:47:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 09:47:11,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 09:47:11,362 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 09:47:11,363 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076485501] [2021-11-06 09:47:11,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076485501] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 09:47:11,364 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 09:47:11,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 09:47:11,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362150376] [2021-11-06 09:47:11,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 09:47:11,369 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 09:47:11,379 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 09:47:11,380 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 09:47:11,383 INFO L87 Difference]: Start difference. First operand has 349 states, 329 states have (on average 1.4164133738601823) internal successors, (466), 348 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:47:11,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 09:47:11,426 INFO L93 Difference]: Finished difference Result 694 states and 927 transitions. [2021-11-06 09:47:11,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 09:47:11,430 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-06 09:47:11,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 09:47:11,445 INFO L225 Difference]: With dead ends: 694 [2021-11-06 09:47:11,446 INFO L226 Difference]: Without dead ends: 341 [2021-11-06 09:47:11,451 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 09:47:11,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 341 states. [2021-11-06 09:47:11,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 341 to 341. [2021-11-06 09:47:11,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 341 states, 322 states have (on average 1.3012422360248448) internal successors, (419), 340 states have internal predecessors, (419), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:47:11,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 341 states to 341 states and 419 transitions. [2021-11-06 09:47:11,509 INFO L78 Accepts]: Start accepts. Automaton has 341 states and 419 transitions. Word has length 34 [2021-11-06 09:47:11,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 09:47:11,510 INFO L470 AbstractCegarLoop]: Abstraction has 341 states and 419 transitions. [2021-11-06 09:47:11,510 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 17.0) internal successors, (34), 2 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:47:11,510 INFO L276 IsEmpty]: Start isEmpty. Operand 341 states and 419 transitions. [2021-11-06 09:47:11,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-06 09:47:11,512 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 09:47:11,512 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 09:47:11,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 09:47:11,513 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-06 09:47:11,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 09:47:11,516 INFO L85 PathProgramCache]: Analyzing trace with hash 1819461034, now seen corresponding path program 1 times [2021-11-06 09:47:11,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 09:47:11,517 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499097369] [2021-11-06 09:47:11,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:47:11,517 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 09:47:11,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 09:47:11,719 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 09:47:11,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 09:47:11,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499097369] [2021-11-06 09:47:11,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1499097369] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 09:47:11,720 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 09:47:11,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 09:47:11,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836742963] [2021-11-06 09:47:11,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 09:47:11,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 09:47:11,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 09:47:11,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 09:47:11,722 INFO L87 Difference]: Start difference. First operand 341 states and 419 transitions. Second operand has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:47:11,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 09:47:11,765 INFO L93 Difference]: Finished difference Result 669 states and 823 transitions. [2021-11-06 09:47:11,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 09:47:11,766 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-06 09:47:11,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 09:47:11,767 INFO L225 Difference]: With dead ends: 669 [2021-11-06 09:47:11,767 INFO L226 Difference]: Without dead ends: 342 [2021-11-06 09:47:11,769 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 09:47:11,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-11-06 09:47:11,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2021-11-06 09:47:11,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 323 states have (on average 1.3003095975232197) internal successors, (420), 341 states have internal predecessors, (420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:47:11,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 420 transitions. [2021-11-06 09:47:11,787 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 420 transitions. Word has length 34 [2021-11-06 09:47:11,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 09:47:11,787 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 420 transitions. [2021-11-06 09:47:11,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:47:11,787 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 420 transitions. [2021-11-06 09:47:11,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2021-11-06 09:47:11,788 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 09:47:11,788 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 09:47:11,788 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 09:47:11,788 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-06 09:47:11,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 09:47:11,789 INFO L85 PathProgramCache]: Analyzing trace with hash 433257640, now seen corresponding path program 1 times [2021-11-06 09:47:11,789 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 09:47:11,789 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984756850] [2021-11-06 09:47:11,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:47:11,789 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 09:47:11,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 09:47:11,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 09:47:11,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 09:47:11,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984756850] [2021-11-06 09:47:11,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984756850] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 09:47:11,985 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 09:47:11,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 09:47:11,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13207373] [2021-11-06 09:47:11,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 09:47:11,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 09:47:11,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 09:47:11,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 09:47:11,986 INFO L87 Difference]: Start difference. First operand 342 states and 420 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:47:12,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 09:47:12,449 INFO L93 Difference]: Finished difference Result 652 states and 800 transitions. [2021-11-06 09:47:12,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 09:47:12,449 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 34 [2021-11-06 09:47:12,450 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 09:47:12,451 INFO L225 Difference]: With dead ends: 652 [2021-11-06 09:47:12,451 INFO L226 Difference]: Without dead ends: 342 [2021-11-06 09:47:12,451 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 09:47:12,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states. [2021-11-06 09:47:12,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 342. [2021-11-06 09:47:12,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 323 states have (on average 1.2910216718266254) internal successors, (417), 341 states have internal predecessors, (417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:47:12,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 417 transitions. [2021-11-06 09:47:12,459 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 417 transitions. Word has length 34 [2021-11-06 09:47:12,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 09:47:12,459 INFO L470 AbstractCegarLoop]: Abstraction has 342 states and 417 transitions. [2021-11-06 09:47:12,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:47:12,459 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 417 transitions. [2021-11-06 09:47:12,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-06 09:47:12,460 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 09:47:12,460 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 09:47:12,460 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 09:47:12,461 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-06 09:47:12,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 09:47:12,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1339226978, now seen corresponding path program 1 times [2021-11-06 09:47:12,461 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 09:47:12,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973545344] [2021-11-06 09:47:12,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:47:12,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 09:47:12,525 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 09:47:12,526 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [985393250] [2021-11-06 09:47:12,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:47:12,526 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 09:47:12,526 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 09:47:12,539 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) [2021-11-06 09:47:12,595 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-06 09:47:13,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 09:47:13,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 2610 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-06 09:47:13,242 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 09:47:13,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 09:47:13,471 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 09:47:13,471 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973545344] [2021-11-06 09:47:13,472 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 09:47:13,472 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985393250] [2021-11-06 09:47:13,472 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985393250] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 09:47:13,472 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 09:47:13,472 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 09:47:13,472 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317331046] [2021-11-06 09:47:13,473 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 09:47:13,473 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 09:47:13,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 09:47:13,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 09:47:13,473 INFO L87 Difference]: Start difference. First operand 342 states and 417 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:47:14,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 09:47:14,152 INFO L93 Difference]: Finished difference Result 713 states and 880 transitions. [2021-11-06 09:47:14,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 09:47:14,153 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-06 09:47:14,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 09:47:14,154 INFO L225 Difference]: With dead ends: 713 [2021-11-06 09:47:14,155 INFO L226 Difference]: Without dead ends: 402 [2021-11-06 09:47:14,155 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 09:47:14,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states. [2021-11-06 09:47:14,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 366. [2021-11-06 09:47:14,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 347 states have (on average 1.2708933717579252) internal successors, (441), 365 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:47:14,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 441 transitions. [2021-11-06 09:47:14,161 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 441 transitions. Word has length 50 [2021-11-06 09:47:14,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 09:47:14,162 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 441 transitions. [2021-11-06 09:47:14,162 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:47:14,162 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 441 transitions. [2021-11-06 09:47:14,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-11-06 09:47:14,163 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 09:47:14,163 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 09:47:14,201 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-06 09:47:14,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 09:47:14,364 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-06 09:47:14,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 09:47:14,364 INFO L85 PathProgramCache]: Analyzing trace with hash -521578528, now seen corresponding path program 1 times [2021-11-06 09:47:14,364 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 09:47:14,365 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629225056] [2021-11-06 09:47:14,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:47:14,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 09:47:14,514 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 09:47:14,514 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1692085928] [2021-11-06 09:47:14,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:47:14,515 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 09:47:14,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 09:47:14,549 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) [2021-11-06 09:47:14,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-06 09:47:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 09:47:15,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 2615 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-06 09:47:15,211 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 09:47:15,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 09:47:15,604 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 09:47:15,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629225056] [2021-11-06 09:47:15,604 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 09:47:15,604 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692085928] [2021-11-06 09:47:15,604 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692085928] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 09:47:15,604 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 09:47:15,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 09:47:15,605 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398735939] [2021-11-06 09:47:15,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 09:47:15,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 09:47:15,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 09:47:15,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-06 09:47:15,606 INFO L87 Difference]: Start difference. First operand 366 states and 441 transitions. Second operand has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:47:16,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 09:47:16,269 INFO L93 Difference]: Finished difference Result 657 states and 790 transitions. [2021-11-06 09:47:16,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 09:47:16,270 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-11-06 09:47:16,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 09:47:16,286 INFO L225 Difference]: With dead ends: 657 [2021-11-06 09:47:16,286 INFO L226 Difference]: Without dead ends: 366 [2021-11-06 09:47:16,287 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-06 09:47:16,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-11-06 09:47:16,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2021-11-06 09:47:16,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 347 states have (on average 1.2536023054755043) internal successors, (435), 365 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:47:16,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 435 transitions. [2021-11-06 09:47:16,300 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 435 transitions. Word has length 50 [2021-11-06 09:47:16,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 09:47:16,302 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 435 transitions. [2021-11-06 09:47:16,302 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:47:16,302 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 435 transitions. [2021-11-06 09:47:16,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-06 09:47:16,306 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 09:47:16,307 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 09:47:16,331 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-06 09:47:16,512 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 09:47:16,512 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-06 09:47:16,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 09:47:16,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1101114756, now seen corresponding path program 1 times [2021-11-06 09:47:16,513 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 09:47:16,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404758627] [2021-11-06 09:47:16,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:47:16,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 09:47:16,573 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 09:47:16,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [981928201] [2021-11-06 09:47:16,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:47:16,574 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 09:47:16,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 09:47:16,575 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) [2021-11-06 09:47:16,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-06 09:47:17,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 09:47:17,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 2710 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-06 09:47:17,273 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 09:47:17,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 09:47:17,828 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 09:47:17,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404758627] [2021-11-06 09:47:17,828 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 09:47:17,828 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981928201] [2021-11-06 09:47:17,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981928201] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 09:47:17,829 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 09:47:17,829 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 09:47:17,829 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333266973] [2021-11-06 09:47:17,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-06 09:47:17,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 09:47:17,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-06 09:47:17,830 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-06 09:47:17,830 INFO L87 Difference]: Start difference. First operand 366 states and 435 transitions. Second operand has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:47:18,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 09:47:18,517 INFO L93 Difference]: Finished difference Result 595 states and 698 transitions. [2021-11-06 09:47:18,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 09:47:18,518 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-11-06 09:47:18,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 09:47:18,519 INFO L225 Difference]: With dead ends: 595 [2021-11-06 09:47:18,519 INFO L226 Difference]: Without dead ends: 366 [2021-11-06 09:47:18,519 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-06 09:47:18,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 366 states. [2021-11-06 09:47:18,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 366 to 366. [2021-11-06 09:47:18,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 347 states have (on average 1.244956772334294) internal successors, (432), 365 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:47:18,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 432 transitions. [2021-11-06 09:47:18,526 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 432 transitions. Word has length 58 [2021-11-06 09:47:18,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 09:47:18,526 INFO L470 AbstractCegarLoop]: Abstraction has 366 states and 432 transitions. [2021-11-06 09:47:18,527 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.285714285714286) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:47:18,527 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 432 transitions. [2021-11-06 09:47:18,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-11-06 09:47:18,533 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 09:47:18,533 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 09:47:18,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-06 09:47:18,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 09:47:18,755 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-06 09:47:18,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 09:47:18,755 INFO L85 PathProgramCache]: Analyzing trace with hash -997775264, now seen corresponding path program 1 times [2021-11-06 09:47:18,755 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 09:47:18,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366628491] [2021-11-06 09:47:18,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:47:18,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 09:47:18,835 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 09:47:18,835 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2035761916] [2021-11-06 09:47:18,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:47:18,836 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 09:47:18,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 09:47:18,837 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) [2021-11-06 09:47:18,839 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-06 09:47:19,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 09:47:19,568 INFO L263 TraceCheckSpWp]: Trace formula consists of 2805 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-06 09:47:19,571 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 09:47:19,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 09:47:19,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 09:47:19,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366628491] [2021-11-06 09:47:19,775 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 09:47:19,775 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035761916] [2021-11-06 09:47:19,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035761916] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 09:47:19,775 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 09:47:19,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 09:47:19,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [335072125] [2021-11-06 09:47:19,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 09:47:19,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 09:47:19,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 09:47:19,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 09:47:19,776 INFO L87 Difference]: Start difference. First operand 366 states and 432 transitions. Second operand has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:47:19,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 09:47:19,894 INFO L93 Difference]: Finished difference Result 864 states and 1013 transitions. [2021-11-06 09:47:19,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 09:47:19,894 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 66 [2021-11-06 09:47:19,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 09:47:19,896 INFO L225 Difference]: With dead ends: 864 [2021-11-06 09:47:19,896 INFO L226 Difference]: Without dead ends: 630 [2021-11-06 09:47:19,897 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-06 09:47:19,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2021-11-06 09:47:19,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 369. [2021-11-06 09:47:19,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 369 states, 350 states have (on average 1.2428571428571429) internal successors, (435), 368 states have internal predecessors, (435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:47:19,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 369 states to 369 states and 435 transitions. [2021-11-06 09:47:19,907 INFO L78 Accepts]: Start accepts. Automaton has 369 states and 435 transitions. Word has length 66 [2021-11-06 09:47:19,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 09:47:19,908 INFO L470 AbstractCegarLoop]: Abstraction has 369 states and 435 transitions. [2021-11-06 09:47:19,908 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.2) internal successors, (66), 5 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 09:47:19,908 INFO L276 IsEmpty]: Start isEmpty. Operand 369 states and 435 transitions. [2021-11-06 09:47:19,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-11-06 09:47:19,909 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 09:47:19,909 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 09:47:19,947 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-06 09:47:20,122 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 09:47:20,123 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 16 more)] === [2021-11-06 09:47:20,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 09:47:20,123 INFO L85 PathProgramCache]: Analyzing trace with hash -843218652, now seen corresponding path program 1 times [2021-11-06 09:47:20,123 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 09:47:20,123 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948718835] [2021-11-06 09:47:20,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:47:20,123 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 09:47:20,176 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 09:47:20,176 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [878917331] [2021-11-06 09:47:20,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 09:47:20,177 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 09:47:20,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 09:47:20,178 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) [2021-11-06 09:47:20,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-06 09:53:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 09:53:00,798 INFO L263 TraceCheckSpWp]: Trace formula consists of 2814 conjuncts, 299 conjunts are in the unsatisfiable core [2021-11-06 09:53:00,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 09:53:00,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-06 09:53:01,163 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-06 09:53:01,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 67 treesize of output 49 [2021-11-06 09:53:01,174 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-06 09:53:01,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 20 [2021-11-06 09:53:01,362 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-06 09:53:01,666 INFO L354 Elim1Store]: treesize reduction 64, result has 19.0 percent of original size [2021-11-06 09:53:01,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 33 [2021-11-06 09:53:01,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 09:53:01,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 28 [2021-11-06 09:53:02,854 INFO L354 Elim1Store]: treesize reduction 48, result has 23.8 percent of original size [2021-11-06 09:53:02,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 47 treesize of output 54 [2021-11-06 09:53:03,512 INFO L354 Elim1Store]: treesize reduction 162, result has 21.0 percent of original size [2021-11-06 09:53:03,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 15 case distinctions, treesize of input 64 treesize of output 92 [2021-11-06 09:53:06,614 INFO L354 Elim1Store]: treesize reduction 238, result has 15.0 percent of original size [2021-11-06 09:53:06,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 84 treesize of output 109 [2021-11-06 09:53:10,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 09:53:10,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 09:53:10,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 09:53:10,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 09:53:10,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 09:53:10,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 09:53:10,797 INFO L354 Elim1Store]: treesize reduction 14, result has 58.8 percent of original size [2021-11-06 09:53:10,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 98 treesize of output 114 [2021-11-06 09:53:24,075 INFO L354 Elim1Store]: treesize reduction 150, result has 30.6 percent of original size [2021-11-06 09:53:24,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 20 case distinctions, treesize of input 138 treesize of output 190 Killed by 15