./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5f08f0f0 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_set_at_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 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 12:01:07,097 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 12:01:07,101 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 12:01:07,149 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 12:01:07,150 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 12:01:07,151 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 12:01:07,151 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 12:01:07,153 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 12:01:07,154 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 12:01:07,158 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 12:01:07,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 12:01:07,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 12:01:07,163 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 12:01:07,164 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 12:01:07,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 12:01:07,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 12:01:07,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 12:01:07,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 12:01:07,174 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 12:01:07,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 12:01:07,181 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 12:01:07,182 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 12:01:07,183 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 12:01:07,184 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 12:01:07,186 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 12:01:07,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 12:01:07,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 12:01:07,191 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 12:01:07,192 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 12:01:07,192 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 12:01:07,193 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 12:01:07,193 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 12:01:07,194 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 12:01:07,195 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 12:01:07,195 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 12:01:07,196 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 12:01:07,196 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 12:01:07,197 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 12:01:07,197 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 12:01:07,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 12:01:07,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 12:01:07,199 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-05 12:01:07,230 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 12:01:07,232 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 12:01:07,233 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 12:01:07,233 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 12:01:07,234 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 12:01:07,235 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 12:01:07,235 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 12:01:07,235 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 12:01:07,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-05 12:01:07,235 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 12:01:07,236 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 12:01:07,236 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 12:01:07,236 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 12:01:07,236 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 12:01:07,236 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 12:01:07,237 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 12:01:07,237 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 12:01:07,237 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 12:01:07,237 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 12:01:07,237 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 12:01:07,237 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 12:01:07,238 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 12:01:07,238 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 12:01:07,238 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-05 12:01:07,238 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-05 12:01:07,238 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 12:01:07,238 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 12:01:07,238 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 12:01:07,239 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 12:01:07,239 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed [2021-11-05 12:01:07,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 12:01:07,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 12:01:07,542 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 12:01:07,543 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 12:01:07,543 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 12:01:07,544 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2021-11-05 12:01:07,601 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0c148525/523d7378f6724e9f8aaa96c425652047/FLAGa1b5a4493 [2021-11-05 12:01:08,306 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 12:01:08,306 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2021-11-05 12:01:08,337 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0c148525/523d7378f6724e9f8aaa96c425652047/FLAGa1b5a4493 [2021-11-05 12:01:08,641 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c0c148525/523d7378f6724e9f8aaa96c425652047 [2021-11-05 12:01:08,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 12:01:08,645 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 12:01:08,649 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 12:01:08,649 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 12:01:08,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 12:01:08,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 12:01:08" (1/1) ... [2021-11-05 12:01:08,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@236ff40d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:08, skipping insertion in model container [2021-11-05 12:01:08,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 12:01:08" (1/1) ... [2021-11-05 12:01:08,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 12:01:08,764 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 12:01:09,073 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_set_at_harness.i[4495,4508] [2021-11-05 12:01:09,078 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_set_at_harness.i[4555,4568] [2021-11-05 12:01:09,090 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 12:01:09,095 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 12:01:09,530 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 12:01:09,566 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:09,567 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:09,567 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:09,567 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:09,568 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:09,574 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:09,575 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:09,576 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:09,576 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:09,577 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:09,577 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:09,578 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:09,578 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:09,801 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 12:01:09,803 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 12:01:09,804 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 12:01:09,805 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 12:01:09,806 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 12:01:09,807 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 12:01:09,807 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 12:01:09,809 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 12:01:09,809 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 12:01:09,809 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 12:01:09,887 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:09,891 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:09,920 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:09,921 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:09,921 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:09,923 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 12:01:09,940 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 12:01:09,957 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_set_at_harness.i[4495,4508] [2021-11-05 12:01:09,960 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_set_at_harness.i[4555,4568] [2021-11-05 12:01:09,961 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 12:01:09,962 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 12:01:10,012 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 12:01:10,028 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:10,029 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:10,029 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:10,029 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:10,030 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:10,038 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:10,039 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:10,040 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:10,040 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:10,042 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:10,042 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:10,043 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:10,043 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:10,091 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 12:01:10,092 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 12:01:10,093 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 12:01:10,093 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 12:01:10,094 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 12:01:10,095 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 12:01:10,095 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 12:01:10,095 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 12:01:10,096 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 12:01:10,098 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 12:01:10,129 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:10,147 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:10,166 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:10,173 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:10,173 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:01:10,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 12:01:10,358 INFO L208 MainTranslator]: Completed translation [2021-11-05 12:01:10,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:10 WrapperNode [2021-11-05 12:01:10,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 12:01:10,374 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 12:01:10,374 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 12:01:10,377 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 12:01:10,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:10" (1/1) ... [2021-11-05 12:01:10,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:10" (1/1) ... [2021-11-05 12:01:10,565 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 12:01:10,566 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 12:01:10,567 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 12:01:10,567 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 12:01:10,596 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:10" (1/1) ... [2021-11-05 12:01:10,596 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:10" (1/1) ... [2021-11-05 12:01:10,622 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:10" (1/1) ... [2021-11-05 12:01:10,623 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:10" (1/1) ... [2021-11-05 12:01:10,706 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:10" (1/1) ... [2021-11-05 12:01:10,733 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:10" (1/1) ... [2021-11-05 12:01:10,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:10" (1/1) ... [2021-11-05 12:01:10,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 12:01:10,777 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 12:01:10,777 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 12:01:10,777 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 12:01:10,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:10" (1/1) ... [2021-11-05 12:01:10,795 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 12:01:10,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:01:10,834 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) [2021-11-05 12:01:10,911 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 [2021-11-05 12:01:10,951 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 12:01:10,963 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-05 12:01:10,963 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 12:01:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 12:01:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 12:01:10,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 12:01:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-05 12:01:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 12:01:10,964 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-05 12:01:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 12:01:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 12:01:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-05 12:01:10,965 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-05 12:01:20,105 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 12:01:20,110 INFO L299 CfgBuilder]: Removed 428 assume(true) statements. [2021-11-05 12:01:20,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:01:20 BoogieIcfgContainer [2021-11-05 12:01:20,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 12:01:20,115 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 12:01:20,115 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 12:01:20,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 12:01:20,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 12:01:08" (1/3) ... [2021-11-05 12:01:20,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7052f2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 12:01:20, skipping insertion in model container [2021-11-05 12:01:20,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:01:10" (2/3) ... [2021-11-05 12:01:20,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7052f2c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 12:01:20, skipping insertion in model container [2021-11-05 12:01:20,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:01:20" (3/3) ... [2021-11-05 12:01:20,120 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_set_at_harness.i [2021-11-05 12:01:20,123 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 12:01:20,124 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2021-11-05 12:01:20,171 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 12:01:20,180 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 [2021-11-05 12:01:20,180 INFO L340 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2021-11-05 12:01:20,205 INFO L276 IsEmpty]: Start isEmpty. Operand has 499 states, 478 states have (on average 1.405857740585774) internal successors, (672), 498 states have internal predecessors, (672), 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) [2021-11-05 12:01:20,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-05 12:01:20,213 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:20,213 INFO L514 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] [2021-11-05 12:01:20,214 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:01:20,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:20,218 INFO L85 PathProgramCache]: Analyzing trace with hash 1815671953, now seen corresponding path program 1 times [2021-11-05 12:01:20,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:20,224 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322114778] [2021-11-05 12:01:20,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:20,225 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:20,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:20,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:20,756 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:20,757 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322114778] [2021-11-05 12:01:20,757 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322114778] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:20,757 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:20,757 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-05 12:01:20,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536940810] [2021-11-05 12:01:20,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:20,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 12:01:20,775 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:20,810 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 12:01:20,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 12:01:20,822 INFO L87 Difference]: Start difference. First operand has 499 states, 478 states have (on average 1.405857740585774) internal successors, (672), 498 states have internal predecessors, (672), 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 29.0) internal successors, (58), 2 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) [2021-11-05 12:01:20,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:01:20,929 INFO L93 Difference]: Finished difference Result 994 states and 1339 transitions. [2021-11-05 12:01:20,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 12:01:20,932 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 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 [2021-11-05 12:01:20,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:01:20,950 INFO L225 Difference]: With dead ends: 994 [2021-11-05 12:01:20,952 INFO L226 Difference]: Without dead ends: 494 [2021-11-05 12:01:20,959 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.04ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 12:01:20,963 INFO L933 BasicCegarLoop]: 624 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.85ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 12:01:20,966 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 3.85ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 12:01:20,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2021-11-05 12:01:21,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2021-11-05 12:01:21,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 474 states have (on average 1.3059071729957805) internal successors, (619), 493 states have internal predecessors, (619), 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) [2021-11-05 12:01:21,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 619 transitions. [2021-11-05 12:01:21,042 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 619 transitions. Word has length 58 [2021-11-05 12:01:21,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:01:21,043 INFO L470 AbstractCegarLoop]: Abstraction has 494 states and 619 transitions. [2021-11-05 12:01:21,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 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) [2021-11-05 12:01:21,045 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 619 transitions. [2021-11-05 12:01:21,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-05 12:01:21,054 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:21,054 INFO L514 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] [2021-11-05 12:01:21,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-05 12:01:21,055 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:01:21,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:21,057 INFO L85 PathProgramCache]: Analyzing trace with hash 145257767, now seen corresponding path program 1 times [2021-11-05 12:01:21,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:21,057 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [909851100] [2021-11-05 12:01:21,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:21,058 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:21,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:21,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:21,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:21,294 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [909851100] [2021-11-05 12:01:21,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [909851100] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:21,294 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:21,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-05 12:01:21,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557270950] [2021-11-05 12:01:21,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:21,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 12:01:21,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:21,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 12:01:21,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 12:01:21,296 INFO L87 Difference]: Start difference. First operand 494 states and 619 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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) [2021-11-05 12:01:21,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:01:21,340 INFO L93 Difference]: Finished difference Result 975 states and 1223 transitions. [2021-11-05 12:01:21,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 12:01:21,341 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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 [2021-11-05 12:01:21,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:01:21,342 INFO L225 Difference]: With dead ends: 975 [2021-11-05 12:01:21,342 INFO L226 Difference]: Without dead ends: 495 [2021-11-05 12:01:21,343 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.38ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 12:01:21,344 INFO L933 BasicCegarLoop]: 618 mSDtfsCounter, 0 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.07ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 28.07ms IncrementalHoareTripleChecker+Time [2021-11-05 12:01:21,344 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1232 Invalid, 5 Unknown, 0 Unchecked, 3.07ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 28.07ms Time] [2021-11-05 12:01:21,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2021-11-05 12:01:21,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 495. [2021-11-05 12:01:21,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 475 states have (on average 1.305263157894737) internal successors, (620), 494 states have internal predecessors, (620), 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) [2021-11-05 12:01:21,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 620 transitions. [2021-11-05 12:01:21,356 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 620 transitions. Word has length 58 [2021-11-05 12:01:21,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:01:21,356 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 620 transitions. [2021-11-05 12:01:21,356 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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) [2021-11-05 12:01:21,356 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 620 transitions. [2021-11-05 12:01:21,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-05 12:01:21,357 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:21,357 INFO L514 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] [2021-11-05 12:01:21,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-05 12:01:21,358 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:01:21,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:21,358 INFO L85 PathProgramCache]: Analyzing trace with hash -298642907, now seen corresponding path program 1 times [2021-11-05 12:01:21,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:21,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947308930] [2021-11-05 12:01:21,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:21,359 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:21,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:21,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:21,617 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:21,617 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947308930] [2021-11-05 12:01:21,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947308930] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:21,618 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:21,618 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 12:01:21,618 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955530350] [2021-11-05 12:01:21,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:21,618 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 12:01:21,618 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:21,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 12:01:21,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:01:21,619 INFO L87 Difference]: Start difference. First operand 495 states and 620 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 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) [2021-11-05 12:01:22,342 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:01:22,342 INFO L93 Difference]: Finished difference Result 958 states and 1200 transitions. [2021-11-05 12:01:22,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 12:01:22,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 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 [2021-11-05 12:01:22,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:01:22,345 INFO L225 Difference]: With dead ends: 958 [2021-11-05 12:01:22,345 INFO L226 Difference]: Without dead ends: 495 [2021-11-05 12:01:22,345 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 48.56ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:01:22,346 INFO L933 BasicCegarLoop]: 580 mSDtfsCounter, 708 mSDsluCounter, 382 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 619.46ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 962 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.01ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 678.97ms IncrementalHoareTripleChecker+Time [2021-11-05 12:01:22,346 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [708 Valid, 962 Invalid, 167 Unknown, 0 Unchecked, 7.01ms Time], IncrementalHoareTripleChecker [8 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 678.97ms Time] [2021-11-05 12:01:22,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2021-11-05 12:01:22,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 495. [2021-11-05 12:01:22,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 475 states have (on average 1.2968421052631578) internal successors, (616), 494 states have internal predecessors, (616), 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) [2021-11-05 12:01:22,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 616 transitions. [2021-11-05 12:01:22,358 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 616 transitions. Word has length 58 [2021-11-05 12:01:22,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:01:22,359 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 616 transitions. [2021-11-05 12:01:22,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 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) [2021-11-05 12:01:22,359 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 616 transitions. [2021-11-05 12:01:22,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-05 12:01:22,362 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:22,362 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:01:22,362 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-05 12:01:22,362 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:01:22,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:22,363 INFO L85 PathProgramCache]: Analyzing trace with hash 1163509497, now seen corresponding path program 1 times [2021-11-05 12:01:22,363 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:22,364 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360720030] [2021-11-05 12:01:22,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:22,364 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:22,441 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 12:01:22,441 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1150410980] [2021-11-05 12:01:22,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:22,442 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:01:22,442 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:01:22,443 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) [2021-11-05 12:01:22,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-05 12:01:23,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:23,165 INFO L263 TraceCheckSpWp]: Trace formula consists of 2821 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-05 12:01:23,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:01:23,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:23,803 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 12:01:23,803 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:23,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360720030] [2021-11-05 12:01:23,803 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 12:01:23,803 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150410980] [2021-11-05 12:01:23,803 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150410980] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:23,803 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:23,804 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 12:01:23,804 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774444813] [2021-11-05 12:01:23,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:23,804 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 12:01:23,804 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:23,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 12:01:23,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 12:01:23,805 INFO L87 Difference]: Start difference. First operand 495 states and 616 transitions. Second operand has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 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) [2021-11-05 12:01:24,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:01:24,737 INFO L93 Difference]: Finished difference Result 886 states and 1104 transitions. [2021-11-05 12:01:24,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 12:01:24,738 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 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 82 [2021-11-05 12:01:24,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:01:24,740 INFO L225 Difference]: With dead ends: 886 [2021-11-05 12:01:24,740 INFO L226 Difference]: Without dead ends: 495 [2021-11-05 12:01:24,740 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 188.51ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-05 12:01:24,741 INFO L933 BasicCegarLoop]: 525 mSDtfsCounter, 1903 mSDsluCounter, 337 mSDsCounter, 0 mSdLazyCounter, 206 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 672.95ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1903 SdHoareTripleChecker+Valid, 862 SdHoareTripleChecker+Invalid, 228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.44ms SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 765.50ms IncrementalHoareTripleChecker+Time [2021-11-05 12:01:24,741 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1903 Valid, 862 Invalid, 228 Unknown, 0 Unchecked, 10.44ms Time], IncrementalHoareTripleChecker [22 Valid, 206 Invalid, 0 Unknown, 0 Unchecked, 765.50ms Time] [2021-11-05 12:01:24,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2021-11-05 12:01:24,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 495. [2021-11-05 12:01:24,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 475 states have (on average 1.288421052631579) internal successors, (612), 494 states have internal predecessors, (612), 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) [2021-11-05 12:01:24,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 612 transitions. [2021-11-05 12:01:24,750 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 612 transitions. Word has length 82 [2021-11-05 12:01:24,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:01:24,751 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 612 transitions. [2021-11-05 12:01:24,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.666666666666666) internal successors, (82), 5 states have internal predecessors, (82), 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) [2021-11-05 12:01:24,751 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 612 transitions. [2021-11-05 12:01:24,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-05 12:01:24,752 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:24,752 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:01:24,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-05 12:01:24,971 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 [2021-11-05 12:01:24,972 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:01:24,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:24,972 INFO L85 PathProgramCache]: Analyzing trace with hash -325696875, now seen corresponding path program 1 times [2021-11-05 12:01:24,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:24,973 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663441911] [2021-11-05 12:01:24,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:24,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:25,020 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 12:01:25,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1988493633] [2021-11-05 12:01:25,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:25,021 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:01:25,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:01:25,022 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) [2021-11-05 12:01:25,024 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-05 12:01:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:25,740 INFO L263 TraceCheckSpWp]: Trace formula consists of 2916 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-05 12:01:25,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:01:26,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:26,416 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 12:01:26,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:26,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663441911] [2021-11-05 12:01:26,416 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 12:01:26,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1988493633] [2021-11-05 12:01:26,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1988493633] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:26,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:26,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 12:01:26,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1692543656] [2021-11-05 12:01:26,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:26,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 12:01:26,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:26,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 12:01:26,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:01:26,421 INFO L87 Difference]: Start difference. First operand 495 states and 612 transitions. Second operand has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 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) [2021-11-05 12:01:27,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:01:27,438 INFO L93 Difference]: Finished difference Result 870 states and 1076 transitions. [2021-11-05 12:01:27,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-05 12:01:27,438 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 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 90 [2021-11-05 12:01:27,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:01:27,440 INFO L225 Difference]: With dead ends: 870 [2021-11-05 12:01:27,440 INFO L226 Difference]: Without dead ends: 495 [2021-11-05 12:01:27,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 265.05ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2021-11-05 12:01:27,441 INFO L933 BasicCegarLoop]: 475 mSDtfsCounter, 2529 mSDsluCounter, 282 mSDsCounter, 0 mSdLazyCounter, 236 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 729.28ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2529 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.07ms SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 236 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 797.97ms IncrementalHoareTripleChecker+Time [2021-11-05 12:01:27,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2529 Valid, 757 Invalid, 272 Unknown, 0 Unchecked, 7.07ms Time], IncrementalHoareTripleChecker [36 Valid, 236 Invalid, 0 Unknown, 0 Unchecked, 797.97ms Time] [2021-11-05 12:01:27,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2021-11-05 12:01:27,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 495. [2021-11-05 12:01:27,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 475 states have (on average 1.2757894736842106) internal successors, (606), 494 states have internal predecessors, (606), 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) [2021-11-05 12:01:27,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 606 transitions. [2021-11-05 12:01:27,455 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 606 transitions. Word has length 90 [2021-11-05 12:01:27,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:01:27,456 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 606 transitions. [2021-11-05 12:01:27,456 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.857142857142858) internal successors, (90), 6 states have internal predecessors, (90), 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) [2021-11-05 12:01:27,456 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 606 transitions. [2021-11-05 12:01:27,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2021-11-05 12:01:27,457 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:27,457 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:01:27,479 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-05 12:01:27,679 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 [2021-11-05 12:01:27,679 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:01:27,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:27,679 INFO L85 PathProgramCache]: Analyzing trace with hash 331065649, now seen corresponding path program 1 times [2021-11-05 12:01:27,680 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:27,680 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659711834] [2021-11-05 12:01:27,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:27,680 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:27,765 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 12:01:27,766 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1516968913] [2021-11-05 12:01:27,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:27,766 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:01:27,766 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:01:27,767 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) [2021-11-05 12:01:27,800 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-05 12:01:28,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:28,444 INFO L263 TraceCheckSpWp]: Trace formula consists of 3011 conjuncts, 11 conjunts are in the unsatisfiable core [2021-11-05 12:01:28,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:01:29,322 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:29,323 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 12:01:29,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:29,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659711834] [2021-11-05 12:01:29,323 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 12:01:29,323 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1516968913] [2021-11-05 12:01:29,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1516968913] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:29,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:29,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 12:01:29,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530053690] [2021-11-05 12:01:29,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:29,324 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-05 12:01:29,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:29,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-05 12:01:29,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-05 12:01:29,324 INFO L87 Difference]: Start difference. First operand 495 states and 606 transitions. Second operand has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 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) [2021-11-05 12:01:30,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:01:30,569 INFO L93 Difference]: Finished difference Result 814 states and 990 transitions. [2021-11-05 12:01:30,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-05 12:01:30,570 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 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 98 [2021-11-05 12:01:30,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:01:30,572 INFO L225 Difference]: With dead ends: 814 [2021-11-05 12:01:30,572 INFO L226 Difference]: Without dead ends: 495 [2021-11-05 12:01:30,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 409.37ms TimeCoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2021-11-05 12:01:30,573 INFO L933 BasicCegarLoop]: 454 mSDtfsCounter, 3046 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 78 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 874.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 3046 SdHoareTripleChecker+Valid, 741 SdHoareTripleChecker+Invalid, 335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.58ms SdHoareTripleChecker+Time, 78 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 940.99ms IncrementalHoareTripleChecker+Time [2021-11-05 12:01:30,573 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3046 Valid, 741 Invalid, 335 Unknown, 0 Unchecked, 5.58ms Time], IncrementalHoareTripleChecker [78 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 940.99ms Time] [2021-11-05 12:01:30,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2021-11-05 12:01:30,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 495. [2021-11-05 12:01:30,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 475 states have (on average 1.2694736842105263) internal successors, (603), 494 states have internal predecessors, (603), 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) [2021-11-05 12:01:30,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 603 transitions. [2021-11-05 12:01:30,585 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 603 transitions. Word has length 98 [2021-11-05 12:01:30,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:01:30,586 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 603 transitions. [2021-11-05 12:01:30,586 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.25) internal successors, (98), 7 states have internal predecessors, (98), 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) [2021-11-05 12:01:30,586 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 603 transitions. [2021-11-05 12:01:30,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2021-11-05 12:01:30,587 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:30,587 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:01:30,625 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-05 12:01:30,806 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 [2021-11-05 12:01:30,807 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:01:30,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:30,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1838617835, now seen corresponding path program 1 times [2021-11-05 12:01:30,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:30,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344002626] [2021-11-05 12:01:30,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:30,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:30,871 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 12:01:30,871 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [257552071] [2021-11-05 12:01:30,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:30,871 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:01:30,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:01:30,872 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) [2021-11-05 12:01:30,874 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-05 12:01:31,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:31,569 INFO L263 TraceCheckSpWp]: Trace formula consists of 3106 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-05 12:01:31,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:01:31,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:31,815 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 12:01:31,815 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:31,815 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344002626] [2021-11-05 12:01:31,816 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 12:01:31,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [257552071] [2021-11-05 12:01:31,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [257552071] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:31,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:31,816 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 12:01:31,816 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588903385] [2021-11-05 12:01:31,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:31,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 12:01:31,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:31,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 12:01:31,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:01:31,818 INFO L87 Difference]: Start difference. First operand 495 states and 603 transitions. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2021-11-05 12:01:31,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:01:31,999 INFO L93 Difference]: Finished difference Result 1163 states and 1415 transitions. [2021-11-05 12:01:32,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 12:01:32,000 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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 106 [2021-11-05 12:01:32,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:01:32,003 INFO L225 Difference]: With dead ends: 1163 [2021-11-05 12:01:32,003 INFO L226 Difference]: Without dead ends: 841 [2021-11-05 12:01:32,004 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 102 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 103.99ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:01:32,005 INFO L933 BasicCegarLoop]: 935 mSDtfsCounter, 834 mSDsluCounter, 2123 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 93.69ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 834 SdHoareTripleChecker+Valid, 3058 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.60ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 102.67ms IncrementalHoareTripleChecker+Time [2021-11-05 12:01:32,005 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [834 Valid, 3058 Invalid, 30 Unknown, 0 Unchecked, 2.60ms Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 102.67ms Time] [2021-11-05 12:01:32,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 841 states. [2021-11-05 12:01:32,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 841 to 498. [2021-11-05 12:01:32,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 478 states have (on average 1.2677824267782427) internal successors, (606), 497 states have internal predecessors, (606), 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) [2021-11-05 12:01:32,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 606 transitions. [2021-11-05 12:01:32,018 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 606 transitions. Word has length 106 [2021-11-05 12:01:32,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:01:32,018 INFO L470 AbstractCegarLoop]: Abstraction has 498 states and 606 transitions. [2021-11-05 12:01:32,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 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) [2021-11-05 12:01:32,019 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 606 transitions. [2021-11-05 12:01:32,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-05 12:01:32,019 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:32,020 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:01:32,046 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-05 12:01:32,237 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 [2021-11-05 12:01:32,238 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:01:32,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:32,238 INFO L85 PathProgramCache]: Analyzing trace with hash -1439072551, now seen corresponding path program 1 times [2021-11-05 12:01:32,239 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:32,239 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [772405276] [2021-11-05 12:01:32,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:32,240 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:32,302 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 12:01:32,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1649015308] [2021-11-05 12:01:32,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:32,303 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:01:32,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:01:32,304 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) [2021-11-05 12:01:32,332 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-05 12:01:33,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:33,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 3115 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-05 12:01:33,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:01:33,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:33,510 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 12:01:33,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:33,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [772405276] [2021-11-05 12:01:33,510 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 12:01:33,510 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649015308] [2021-11-05 12:01:33,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1649015308] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:33,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:33,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 12:01:33,510 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474691933] [2021-11-05 12:01:33,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:33,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 12:01:33,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:33,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 12:01:33,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:01:33,511 INFO L87 Difference]: Start difference. First operand 498 states and 606 transitions. Second operand has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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) [2021-11-05 12:01:34,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:01:34,261 INFO L93 Difference]: Finished difference Result 947 states and 1149 transitions. [2021-11-05 12:01:34,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 12:01:34,262 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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 108 [2021-11-05 12:01:34,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:01:34,264 INFO L225 Difference]: With dead ends: 947 [2021-11-05 12:01:34,264 INFO L226 Difference]: Without dead ends: 517 [2021-11-05 12:01:34,264 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 91.69ms TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-05 12:01:34,265 INFO L933 BasicCegarLoop]: 582 mSDtfsCounter, 1 mSDsluCounter, 1591 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 631.35ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 2173 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.88ms SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 687.16ms IncrementalHoareTripleChecker+Time [2021-11-05 12:01:34,265 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1 Valid, 2173 Invalid, 233 Unknown, 0 Unchecked, 3.88ms Time], IncrementalHoareTripleChecker [18 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 687.16ms Time] [2021-11-05 12:01:34,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states. [2021-11-05 12:01:34,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 498. [2021-11-05 12:01:34,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 478 states have (on average 1.2656903765690377) internal successors, (605), 497 states have internal predecessors, (605), 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) [2021-11-05 12:01:34,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 605 transitions. [2021-11-05 12:01:34,278 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 605 transitions. Word has length 108 [2021-11-05 12:01:34,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:01:34,278 INFO L470 AbstractCegarLoop]: Abstraction has 498 states and 605 transitions. [2021-11-05 12:01:34,278 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.6) internal successors, (108), 5 states have internal predecessors, (108), 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) [2021-11-05 12:01:34,278 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 605 transitions. [2021-11-05 12:01:34,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2021-11-05 12:01:34,279 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:34,279 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:01:34,327 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-05 12:01:34,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:01:34,504 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:01:34,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:34,504 INFO L85 PathProgramCache]: Analyzing trace with hash -1021675945, now seen corresponding path program 1 times [2021-11-05 12:01:34,505 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:34,505 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641463578] [2021-11-05 12:01:34,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:34,505 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:34,582 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 12:01:34,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [753383511] [2021-11-05 12:01:34,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:34,582 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:01:34,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:01:34,596 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) [2021-11-05 12:01:34,597 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-05 12:01:35,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:35,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 3118 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-05 12:01:35,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:01:36,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:36,048 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 12:01:36,048 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:36,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641463578] [2021-11-05 12:01:36,048 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 12:01:36,048 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [753383511] [2021-11-05 12:01:36,048 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [753383511] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:36,048 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:36,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-05 12:01:36,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360516720] [2021-11-05 12:01:36,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:36,049 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 12:01:36,049 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:36,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 12:01:36,049 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 12:01:36,050 INFO L87 Difference]: Start difference. First operand 498 states and 605 transitions. Second operand has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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) [2021-11-05 12:01:36,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:01:36,322 INFO L93 Difference]: Finished difference Result 1180 states and 1433 transitions. [2021-11-05 12:01:36,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 12:01:36,322 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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 108 [2021-11-05 12:01:36,323 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:01:36,325 INFO L225 Difference]: With dead ends: 1180 [2021-11-05 12:01:36,325 INFO L226 Difference]: Without dead ends: 726 [2021-11-05 12:01:36,326 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 219.03ms TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-11-05 12:01:36,328 INFO L933 BasicCegarLoop]: 821 mSDtfsCounter, 314 mSDsluCounter, 3045 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 149.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 3866 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.45ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 164.02ms IncrementalHoareTripleChecker+Time [2021-11-05 12:01:36,328 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [314 Valid, 3866 Invalid, 39 Unknown, 0 Unchecked, 2.45ms Time], IncrementalHoareTripleChecker [2 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 164.02ms Time] [2021-11-05 12:01:36,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2021-11-05 12:01:36,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 498. [2021-11-05 12:01:36,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 478 states have (on average 1.2635983263598327) internal successors, (604), 497 states have internal predecessors, (604), 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) [2021-11-05 12:01:36,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 604 transitions. [2021-11-05 12:01:36,341 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 604 transitions. Word has length 108 [2021-11-05 12:01:36,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:01:36,342 INFO L470 AbstractCegarLoop]: Abstraction has 498 states and 604 transitions. [2021-11-05 12:01:36,342 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 18.0) internal successors, (108), 6 states have internal predecessors, (108), 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) [2021-11-05 12:01:36,342 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 604 transitions. [2021-11-05 12:01:36,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-05 12:01:36,343 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:36,343 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:01:36,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-05 12:01:36,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:01:36,570 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:01:36,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:36,570 INFO L85 PathProgramCache]: Analyzing trace with hash 454297094, now seen corresponding path program 1 times [2021-11-05 12:01:36,570 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:36,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [272182484] [2021-11-05 12:01:36,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:36,570 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:36,655 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 12:01:36,655 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [190905696] [2021-11-05 12:01:36,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:36,656 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:01:36,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:01:36,657 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) [2021-11-05 12:01:36,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-05 12:01:37,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:37,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 3140 conjuncts, 15 conjunts are in the unsatisfiable core [2021-11-05 12:01:37,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:01:37,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:37,974 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 12:01:37,974 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:37,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [272182484] [2021-11-05 12:01:37,974 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 12:01:37,974 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [190905696] [2021-11-05 12:01:37,974 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [190905696] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:37,974 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:37,974 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-11-05 12:01:37,974 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108419852] [2021-11-05 12:01:37,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:37,975 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-05 12:01:37,975 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:37,975 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-05 12:01:37,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-05 12:01:37,975 INFO L87 Difference]: Start difference. First operand 498 states and 604 transitions. Second operand has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 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) [2021-11-05 12:01:38,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:01:38,538 INFO L93 Difference]: Finished difference Result 1159 states and 1405 transitions. [2021-11-05 12:01:38,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-05 12:01:38,539 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 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 111 [2021-11-05 12:01:38,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:01:38,542 INFO L225 Difference]: With dead ends: 1159 [2021-11-05 12:01:38,542 INFO L226 Difference]: Without dead ends: 749 [2021-11-05 12:01:38,543 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 118 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 436.82ms TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2021-11-05 12:01:38,543 INFO L933 BasicCegarLoop]: 662 mSDtfsCounter, 2827 mSDsluCounter, 1883 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 208.07ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2827 SdHoareTripleChecker+Valid, 2545 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.55ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 233.08ms IncrementalHoareTripleChecker+Time [2021-11-05 12:01:38,544 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2827 Valid, 2545 Invalid, 76 Unknown, 0 Unchecked, 3.55ms Time], IncrementalHoareTripleChecker [10 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 233.08ms Time] [2021-11-05 12:01:38,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 749 states. [2021-11-05 12:01:38,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 749 to 498. [2021-11-05 12:01:38,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 498 states, 478 states have (on average 1.2615062761506277) internal successors, (603), 497 states have internal predecessors, (603), 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) [2021-11-05 12:01:38,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 498 states to 498 states and 603 transitions. [2021-11-05 12:01:38,564 INFO L78 Accepts]: Start accepts. Automaton has 498 states and 603 transitions. Word has length 111 [2021-11-05 12:01:38,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:01:38,565 INFO L470 AbstractCegarLoop]: Abstraction has 498 states and 603 transitions. [2021-11-05 12:01:38,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.875) internal successors, (111), 8 states have internal predecessors, (111), 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) [2021-11-05 12:01:38,565 INFO L276 IsEmpty]: Start isEmpty. Operand 498 states and 603 transitions. [2021-11-05 12:01:38,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-05 12:01:38,566 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:38,566 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:01:38,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-05 12:01:38,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:01:38,787 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:01:38,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:38,788 INFO L85 PathProgramCache]: Analyzing trace with hash 807385476, now seen corresponding path program 1 times [2021-11-05 12:01:38,788 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:38,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569384685] [2021-11-05 12:01:38,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:38,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:38,861 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 12:01:38,862 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [616137294] [2021-11-05 12:01:38,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:38,862 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:01:38,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:01:38,863 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) [2021-11-05 12:01:38,881 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-05 12:01:39,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:39,735 INFO L263 TraceCheckSpWp]: Trace formula consists of 3143 conjuncts, 62 conjunts are in the unsatisfiable core [2021-11-05 12:01:39,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:01:40,751 INFO L388 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 9 treesize of output 3 [2021-11-05 12:01:41,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:41,152 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 12:01:41,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:41,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1569384685] [2021-11-05 12:01:41,152 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 12:01:41,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [616137294] [2021-11-05 12:01:41,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [616137294] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:41,152 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:41,152 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-05 12:01:41,152 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1953037271] [2021-11-05 12:01:41,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:41,153 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-05 12:01:41,153 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:41,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-05 12:01:41,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-11-05 12:01:41,153 INFO L87 Difference]: Start difference. First operand 498 states and 603 transitions. Second operand has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 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) [2021-11-05 12:01:43,196 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:01:45,309 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:01:47,470 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.16s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:01:53,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:01:53,627 INFO L93 Difference]: Finished difference Result 1440 states and 1746 transitions. [2021-11-05 12:01:53,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-05 12:01:53,628 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 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 111 [2021-11-05 12:01:53,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:01:53,630 INFO L225 Difference]: With dead ends: 1440 [2021-11-05 12:01:53,630 INFO L226 Difference]: Without dead ends: 973 [2021-11-05 12:01:53,642 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1139.92ms TimeCoverageRelationStatistics Valid=76, Invalid=164, Unknown=0, NotChecked=0, Total=240 [2021-11-05 12:01:53,643 INFO L933 BasicCegarLoop]: 953 mSDtfsCounter, 1184 mSDsluCounter, 3468 mSDsCounter, 0 mSdLazyCounter, 1490 mSolverCounterSat, 84 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10892.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1184 SdHoareTripleChecker+Valid, 4421 SdHoareTripleChecker+Invalid, 1577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 22.20ms SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 1490 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11608.11ms IncrementalHoareTripleChecker+Time [2021-11-05 12:01:53,643 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1184 Valid, 4421 Invalid, 1577 Unknown, 0 Unchecked, 22.20ms Time], IncrementalHoareTripleChecker [84 Valid, 1490 Invalid, 3 Unknown, 0 Unchecked, 11608.11ms Time] [2021-11-05 12:01:53,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 973 states. [2021-11-05 12:01:53,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 973 to 877. [2021-11-05 12:01:53,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 877 states, 857 states have (on average 1.2753792298716453) internal successors, (1093), 876 states have internal predecessors, (1093), 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) [2021-11-05 12:01:53,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 877 states to 877 states and 1093 transitions. [2021-11-05 12:01:53,701 INFO L78 Accepts]: Start accepts. Automaton has 877 states and 1093 transitions. Word has length 111 [2021-11-05 12:01:53,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:01:53,701 INFO L470 AbstractCegarLoop]: Abstraction has 877 states and 1093 transitions. [2021-11-05 12:01:53,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.333333333333334) internal successors, (111), 9 states have internal predecessors, (111), 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) [2021-11-05 12:01:53,702 INFO L276 IsEmpty]: Start isEmpty. Operand 877 states and 1093 transitions. [2021-11-05 12:01:53,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2021-11-05 12:01:53,703 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:53,703 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:01:53,730 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-11-05 12:01:53,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-11-05 12:01:53,930 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:01:53,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:53,931 INFO L85 PathProgramCache]: Analyzing trace with hash -2136196602, now seen corresponding path program 1 times [2021-11-05 12:01:53,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:53,931 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031730018] [2021-11-05 12:01:53,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:53,931 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:53,986 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 12:01:53,987 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [631316461] [2021-11-05 12:01:53,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:53,987 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:01:53,987 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:01:53,988 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) [2021-11-05 12:01:53,990 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-05 12:01:54,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:54,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 3138 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-05 12:01:54,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:01:55,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:55,224 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 12:01:55,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:55,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031730018] [2021-11-05 12:01:55,224 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 12:01:55,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [631316461] [2021-11-05 12:01:55,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [631316461] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:55,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:55,224 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-05 12:01:55,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366702377] [2021-11-05 12:01:55,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:55,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 12:01:55,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:55,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 12:01:55,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:01:55,225 INFO L87 Difference]: Start difference. First operand 877 states and 1093 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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) [2021-11-05 12:01:56,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:01:56,367 INFO L93 Difference]: Finished difference Result 1886 states and 2376 transitions. [2021-11-05 12:01:56,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 12:01:56,368 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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 111 [2021-11-05 12:01:56,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:01:56,371 INFO L225 Difference]: With dead ends: 1886 [2021-11-05 12:01:56,371 INFO L226 Difference]: Without dead ends: 1042 [2021-11-05 12:01:56,372 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 111 GetRequests, 108 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 53.05ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:01:56,373 INFO L933 BasicCegarLoop]: 669 mSDtfsCounter, 136 mSDsluCounter, 931 mSDsCounter, 0 mSdLazyCounter, 283 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 942.01ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 136 SdHoareTripleChecker+Valid, 1600 SdHoareTripleChecker+Invalid, 356 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.30ms SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1058.34ms IncrementalHoareTripleChecker+Time [2021-11-05 12:01:56,373 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [136 Valid, 1600 Invalid, 356 Unknown, 0 Unchecked, 4.30ms Time], IncrementalHoareTripleChecker [73 Valid, 283 Invalid, 0 Unknown, 0 Unchecked, 1058.34ms Time] [2021-11-05 12:01:56,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1042 states. [2021-11-05 12:01:56,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1042 to 937. [2021-11-05 12:01:56,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 937 states, 917 states have (on average 1.2529989094874592) internal successors, (1149), 936 states have internal predecessors, (1149), 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) [2021-11-05 12:01:56,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 937 states to 937 states and 1149 transitions. [2021-11-05 12:01:56,407 INFO L78 Accepts]: Start accepts. Automaton has 937 states and 1149 transitions. Word has length 111 [2021-11-05 12:01:56,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:01:56,408 INFO L470 AbstractCegarLoop]: Abstraction has 937 states and 1149 transitions. [2021-11-05 12:01:56,408 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 4 states have internal predecessors, (111), 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) [2021-11-05 12:01:56,408 INFO L276 IsEmpty]: Start isEmpty. Operand 937 states and 1149 transitions. [2021-11-05 12:01:56,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-05 12:01:56,409 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:01:56,409 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:01:56,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-05 12:01:56,635 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:01:56,635 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:01:56,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:01:56,636 INFO L85 PathProgramCache]: Analyzing trace with hash 309133258, now seen corresponding path program 1 times [2021-11-05 12:01:56,636 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:01:56,636 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972180297] [2021-11-05 12:01:56,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:56,636 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:01:56,706 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 12:01:56,707 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [540034032] [2021-11-05 12:01:56,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:01:56,707 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:01:56,707 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:01:56,708 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) [2021-11-05 12:01:56,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-05 12:01:57,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:01:57,507 INFO L263 TraceCheckSpWp]: Trace formula consists of 3148 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-05 12:01:57,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:01:57,536 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 [2021-11-05 12:01:58,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:01:58,013 INFO L388 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 [2021-11-05 12:01:58,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:01:58,036 INFO L388 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 [2021-11-05 12:01:58,169 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-05 12:01:58,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-05 12:01:58,338 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-05 12:01:58,339 INFO L388 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 49 treesize of output 37 [2021-11-05 12:01:58,383 INFO L354 Elim1Store]: treesize reduction 29, result has 19.4 percent of original size [2021-11-05 12:01:58,384 INFO L388 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 34 treesize of output 22 [2021-11-05 12:01:58,976 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:01:58,976 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 12:01:58,976 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:01:58,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972180297] [2021-11-05 12:01:58,976 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 12:01:58,976 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [540034032] [2021-11-05 12:01:58,976 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [540034032] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:01:58,976 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:01:58,976 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-11-05 12:01:58,976 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749564687] [2021-11-05 12:01:58,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:01:58,977 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-11-05 12:01:58,977 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:01:58,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-11-05 12:01:58,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2021-11-05 12:01:58,977 INFO L87 Difference]: Start difference. First operand 937 states and 1149 transitions. Second operand has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 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) [2021-11-05 12:02:01,020 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:02:03,164 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:02:05,300 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:02:10,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:02:10,105 INFO L93 Difference]: Finished difference Result 1920 states and 2345 transitions. [2021-11-05 12:02:10,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-05 12:02:10,106 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 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 113 [2021-11-05 12:02:10,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:02:10,110 INFO L225 Difference]: With dead ends: 1920 [2021-11-05 12:02:10,110 INFO L226 Difference]: Without dead ends: 1008 [2021-11-05 12:02:10,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 981.24ms TimeCoverageRelationStatistics Valid=81, Invalid=159, Unknown=0, NotChecked=0, Total=240 [2021-11-05 12:02:10,113 INFO L933 BasicCegarLoop]: 565 mSDtfsCounter, 85 mSDsluCounter, 2620 mSDsCounter, 0 mSdLazyCounter, 1000 mSolverCounterSat, 28 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9621.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 3185 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 13.58ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 1000 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10340.92ms IncrementalHoareTripleChecker+Time [2021-11-05 12:02:10,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [85 Valid, 3185 Invalid, 1031 Unknown, 0 Unchecked, 13.58ms Time], IncrementalHoareTripleChecker [28 Valid, 1000 Invalid, 3 Unknown, 0 Unchecked, 10340.92ms Time] [2021-11-05 12:02:10,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2021-11-05 12:02:10,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 946. [2021-11-05 12:02:10,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 946 states, 926 states have (on average 1.2516198704103672) internal successors, (1159), 945 states have internal predecessors, (1159), 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) [2021-11-05 12:02:10,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 946 states to 946 states and 1159 transitions. [2021-11-05 12:02:10,149 INFO L78 Accepts]: Start accepts. Automaton has 946 states and 1159 transitions. Word has length 113 [2021-11-05 12:02:10,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:02:10,149 INFO L470 AbstractCegarLoop]: Abstraction has 946 states and 1159 transitions. [2021-11-05 12:02:10,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 12.555555555555555) internal successors, (113), 9 states have internal predecessors, (113), 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) [2021-11-05 12:02:10,149 INFO L276 IsEmpty]: Start isEmpty. Operand 946 states and 1159 transitions. [2021-11-05 12:02:10,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-05 12:02:10,150 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:02:10,150 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:02:10,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-05 12:02:10,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-11-05 12:02:10,376 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:02:10,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:02:10,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1910204364, now seen corresponding path program 1 times [2021-11-05 12:02:10,377 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:02:10,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001838117] [2021-11-05 12:02:10,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:02:10,377 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:02:10,458 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 12:02:10,459 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1755818012] [2021-11-05 12:02:10,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:02:10,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:02:10,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:02:10,460 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) [2021-11-05 12:02:10,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-05 12:02:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:02:11,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 3143 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-05 12:02:11,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:02:11,798 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:02:11,798 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 12:02:11,798 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:02:11,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001838117] [2021-11-05 12:02:11,798 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 12:02:11,798 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1755818012] [2021-11-05 12:02:11,798 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1755818012] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:02:11,798 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:02:11,799 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-05 12:02:11,799 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681596370] [2021-11-05 12:02:11,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:02:11,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 12:02:11,799 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:02:11,799 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 12:02:11,799 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:02:11,800 INFO L87 Difference]: Start difference. First operand 946 states and 1159 transitions. Second operand has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 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) [2021-11-05 12:02:13,852 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:02:15,988 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:02:19,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:02:19,877 INFO L93 Difference]: Finished difference Result 2330 states and 2848 transitions. [2021-11-05 12:02:19,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 12:02:19,879 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 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 113 [2021-11-05 12:02:19,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:02:19,883 INFO L225 Difference]: With dead ends: 2330 [2021-11-05 12:02:19,883 INFO L226 Difference]: Without dead ends: 1423 [2021-11-05 12:02:19,885 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 301.29ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:02:19,885 INFO L933 BasicCegarLoop]: 778 mSDtfsCounter, 360 mSDsluCounter, 1596 mSDsCounter, 0 mSdLazyCounter, 852 mSolverCounterSat, 129 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7127.99ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 2374 SdHoareTripleChecker+Invalid, 983 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.91ms SdHoareTripleChecker+Time, 129 IncrementalHoareTripleChecker+Valid, 852 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7771.57ms IncrementalHoareTripleChecker+Time [2021-11-05 12:02:19,885 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [360 Valid, 2374 Invalid, 983 Unknown, 0 Unchecked, 11.91ms Time], IncrementalHoareTripleChecker [129 Valid, 852 Invalid, 2 Unknown, 0 Unchecked, 7771.57ms Time] [2021-11-05 12:02:19,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1423 states. [2021-11-05 12:02:19,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1423 to 982. [2021-11-05 12:02:19,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 982 states, 962 states have (on average 1.2411642411642412) internal successors, (1194), 981 states have internal predecessors, (1194), 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) [2021-11-05 12:02:19,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 982 states to 982 states and 1194 transitions. [2021-11-05 12:02:19,916 INFO L78 Accepts]: Start accepts. Automaton has 982 states and 1194 transitions. Word has length 113 [2021-11-05 12:02:19,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:02:19,916 INFO L470 AbstractCegarLoop]: Abstraction has 982 states and 1194 transitions. [2021-11-05 12:02:19,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 22.6) internal successors, (113), 5 states have internal predecessors, (113), 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) [2021-11-05 12:02:19,917 INFO L276 IsEmpty]: Start isEmpty. Operand 982 states and 1194 transitions. [2021-11-05 12:02:19,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-05 12:02:19,917 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:02:19,918 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:02:19,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-05 12:02:20,132 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-11-05 12:02:20,133 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:02:20,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:02:20,133 INFO L85 PathProgramCache]: Analyzing trace with hash 291229450, now seen corresponding path program 1 times [2021-11-05 12:02:20,133 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:02:20,133 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729665074] [2021-11-05 12:02:20,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:02:20,133 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:02:20,193 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 12:02:20,193 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1888720778] [2021-11-05 12:02:20,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:02:20,193 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:02:20,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:02:20,194 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) [2021-11-05 12:02:20,196 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-05 12:02:21,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:02:21,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 3148 conjuncts, 97 conjunts are in the unsatisfiable core [2021-11-05 12:02:21,161 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:02:21,224 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 [2021-11-05 12:02:22,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:02:22,010 INFO L388 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 [2021-11-05 12:02:22,347 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-05 12:02:22,348 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-05 12:02:22,560 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-05 12:02:22,560 INFO L388 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 29 treesize of output 17 [2021-11-05 12:02:23,640 INFO L388 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 9 treesize of output 3 [2021-11-05 12:02:24,870 INFO L388 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 33 treesize of output 25 [2021-11-05 12:02:24,887 INFO L388 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 22 treesize of output 14 [2021-11-05 12:02:25,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:02:25,415 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 12:02:25,415 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:02:25,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729665074] [2021-11-05 12:02:25,415 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 12:02:25,415 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1888720778] [2021-11-05 12:02:25,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1888720778] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:02:25,416 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:02:25,416 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-11-05 12:02:25,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313385663] [2021-11-05 12:02:25,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:02:25,416 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-11-05 12:02:25,416 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:02:25,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-11-05 12:02:25,417 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=310, Unknown=0, NotChecked=0, Total=380 [2021-11-05 12:02:25,417 INFO L87 Difference]: Start difference. First operand 982 states and 1194 transitions. Second operand has 20 states, 20 states have (on average 5.65) internal successors, (113), 19 states have internal predecessors, (113), 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) [2021-11-05 12:02:27,456 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:02:29,668 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.21s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:02:31,837 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:02:33,946 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:02:36,089 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:02:38,235 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:02:40,406 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:02:53,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:02:53,423 INFO L93 Difference]: Finished difference Result 2845 states and 3466 transitions. [2021-11-05 12:02:53,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-11-05 12:02:53,425 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 5.65) internal successors, (113), 19 states have internal predecessors, (113), 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 113 [2021-11-05 12:02:53,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:02:53,436 INFO L225 Difference]: With dead ends: 2845 [2021-11-05 12:02:53,437 INFO L226 Difference]: Without dead ends: 1925 [2021-11-05 12:02:53,441 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 247 ImplicationChecksByTransitivity, 4675.69ms TimeCoverageRelationStatistics Valid=230, Invalid=892, Unknown=0, NotChecked=0, Total=1122 [2021-11-05 12:02:53,442 INFO L933 BasicCegarLoop]: 1061 mSDtfsCounter, 1284 mSDsluCounter, 7206 mSDsCounter, 0 mSdLazyCounter, 2548 mSolverCounterSat, 38 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 22964.41ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1284 SdHoareTripleChecker+Valid, 8267 SdHoareTripleChecker+Invalid, 2593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 42.03ms SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 2548 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 24812.38ms IncrementalHoareTripleChecker+Time [2021-11-05 12:02:53,442 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1284 Valid, 8267 Invalid, 2593 Unknown, 0 Unchecked, 42.03ms Time], IncrementalHoareTripleChecker [38 Valid, 2548 Invalid, 7 Unknown, 0 Unchecked, 24812.38ms Time] [2021-11-05 12:02:53,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1925 states. [2021-11-05 12:02:53,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1925 to 1002. [2021-11-05 12:02:53,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1002 states, 982 states have (on average 1.2362525458248472) internal successors, (1214), 1001 states have internal predecessors, (1214), 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) [2021-11-05 12:02:53,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1002 states to 1002 states and 1214 transitions. [2021-11-05 12:02:53,514 INFO L78 Accepts]: Start accepts. Automaton has 1002 states and 1214 transitions. Word has length 113 [2021-11-05 12:02:53,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:02:53,515 INFO L470 AbstractCegarLoop]: Abstraction has 1002 states and 1214 transitions. [2021-11-05 12:02:53,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 5.65) internal successors, (113), 19 states have internal predecessors, (113), 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) [2021-11-05 12:02:53,515 INFO L276 IsEmpty]: Start isEmpty. Operand 1002 states and 1214 transitions. [2021-11-05 12:02:53,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-05 12:02:53,516 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:02:53,516 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:02:53,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-05 12:02:53,744 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-11-05 12:02:53,744 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:02:53,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:02:53,744 INFO L85 PathProgramCache]: Analyzing trace with hash -1659959392, now seen corresponding path program 1 times [2021-11-05 12:02:53,744 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:02:53,744 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402788945] [2021-11-05 12:02:53,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:02:53,745 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:02:53,809 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 12:02:53,809 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [685086492] [2021-11-05 12:02:53,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:02:53,810 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:02:53,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:02:53,811 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) [2021-11-05 12:02:53,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-05 12:02:54,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:02:54,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 3162 conjuncts, 74 conjunts are in the unsatisfiable core [2021-11-05 12:02:54,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:02:54,691 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 [2021-11-05 12:02:54,979 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-05 12:02:54,979 INFO L388 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 12 treesize of output 14 [2021-11-05 12:02:55,152 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 13 treesize of output 9 [2021-11-05 12:02:55,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:02:55,335 INFO L388 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 [2021-11-05 12:02:55,566 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-05 12:02:55,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-05 12:02:55,753 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-05 12:02:55,754 INFO L388 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 29 treesize of output 17 [2021-11-05 12:02:56,741 INFO L388 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 9 treesize of output 3 [2021-11-05 12:02:57,083 INFO L388 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 12 [2021-11-05 12:02:57,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:02:57,540 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 12:02:57,541 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:02:57,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402788945] [2021-11-05 12:02:57,542 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 12:02:57,542 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685086492] [2021-11-05 12:02:57,542 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685086492] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:02:57,542 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:02:57,542 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-11-05 12:02:57,542 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642346492] [2021-11-05 12:02:57,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:02:57,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-11-05 12:02:57,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:02:57,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-11-05 12:02:57,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-11-05 12:02:57,544 INFO L87 Difference]: Start difference. First operand 1002 states and 1214 transitions. Second operand has 18 states, 18 states have (on average 6.444444444444445) internal successors, (116), 18 states have internal predecessors, (116), 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) [2021-11-05 12:02:59,583 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:01,739 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.15s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:03,934 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:06,058 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:08,188 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.13s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:10,289 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:12,480 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:35,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:03:35,200 INFO L93 Difference]: Finished difference Result 2604 states and 3123 transitions. [2021-11-05 12:03:35,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-11-05 12:03:35,201 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 6.444444444444445) internal successors, (116), 18 states have internal predecessors, (116), 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 116 [2021-11-05 12:03:35,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:03:35,205 INFO L225 Difference]: With dead ends: 2604 [2021-11-05 12:03:35,205 INFO L226 Difference]: Without dead ends: 1713 [2021-11-05 12:03:35,219 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 499 ImplicationChecksByTransitivity, 5852.44ms TimeCoverageRelationStatistics Valid=415, Invalid=1655, Unknown=0, NotChecked=0, Total=2070 [2021-11-05 12:03:35,220 INFO L933 BasicCegarLoop]: 1103 mSDtfsCounter, 1167 mSDsluCounter, 9270 mSDsCounter, 0 mSdLazyCounter, 4766 mSolverCounterSat, 205 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 30073.64ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1167 SdHoareTripleChecker+Valid, 10373 SdHoareTripleChecker+Invalid, 4978 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 56.96ms SdHoareTripleChecker+Time, 205 IncrementalHoareTripleChecker+Valid, 4766 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 32551.93ms IncrementalHoareTripleChecker+Time [2021-11-05 12:03:35,220 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1167 Valid, 10373 Invalid, 4978 Unknown, 0 Unchecked, 56.96ms Time], IncrementalHoareTripleChecker [205 Valid, 4766 Invalid, 7 Unknown, 0 Unchecked, 32551.93ms Time] [2021-11-05 12:03:35,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1713 states. [2021-11-05 12:03:35,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1713 to 1487. [2021-11-05 12:03:35,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1487 states, 1467 states have (on average 1.2385821404226312) internal successors, (1817), 1486 states have internal predecessors, (1817), 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) [2021-11-05 12:03:35,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1487 states to 1487 states and 1817 transitions. [2021-11-05 12:03:35,297 INFO L78 Accepts]: Start accepts. Automaton has 1487 states and 1817 transitions. Word has length 116 [2021-11-05 12:03:35,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:03:35,297 INFO L470 AbstractCegarLoop]: Abstraction has 1487 states and 1817 transitions. [2021-11-05 12:03:35,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 6.444444444444445) internal successors, (116), 18 states have internal predecessors, (116), 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) [2021-11-05 12:03:35,297 INFO L276 IsEmpty]: Start isEmpty. Operand 1487 states and 1817 transitions. [2021-11-05 12:03:35,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-05 12:03:35,299 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:03:35,299 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:03:35,356 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-05 12:03:35,500 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-11-05 12:03:35,500 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:03:35,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:03:35,501 INFO L85 PathProgramCache]: Analyzing trace with hash -1677863200, now seen corresponding path program 1 times [2021-11-05 12:03:35,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:03:35,501 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998840014] [2021-11-05 12:03:35,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:03:35,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:03:35,559 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 12:03:35,563 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [595247797] [2021-11-05 12:03:35,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:03:35,564 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:03:35,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:03:35,567 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) [2021-11-05 12:03:35,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-05 12:03:36,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:03:36,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 3162 conjuncts, 73 conjunts are in the unsatisfiable core [2021-11-05 12:03:36,396 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:03:36,429 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 [2021-11-05 12:03:36,839 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-05 12:03:36,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 17 treesize of output 21 [2021-11-05 12:03:36,980 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 27 treesize of output 23 [2021-11-05 12:03:37,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:03:37,312 INFO L388 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 43 treesize of output 30 [2021-11-05 12:03:37,750 INFO L354 Elim1Store]: treesize reduction 8, result has 65.2 percent of original size [2021-11-05 12:03:37,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 22 treesize of output 24 [2021-11-05 12:03:38,055 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-05 12:03:38,056 INFO L388 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 50 treesize of output 26 [2021-11-05 12:03:39,575 INFO L388 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 51 treesize of output 33 [2021-11-05 12:03:39,583 INFO L388 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 30 treesize of output 18 [2021-11-05 12:03:39,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:03:39,991 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 12:03:39,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:03:39,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998840014] [2021-11-05 12:03:39,991 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 12:03:39,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595247797] [2021-11-05 12:03:39,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595247797] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:03:39,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:03:39,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-05 12:03:39,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950563814] [2021-11-05 12:03:39,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:03:39,993 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-05 12:03:39,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:03:39,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-05 12:03:39,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2021-11-05 12:03:39,994 INFO L87 Difference]: Start difference. First operand 1487 states and 1817 transitions. Second operand has 14 states, 14 states have (on average 8.285714285714286) internal successors, (116), 13 states have internal predecessors, (116), 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) [2021-11-05 12:03:42,052 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:44,223 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.17s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:46,306 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:48,427 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.12s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:50,507 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:52,690 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.18s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:03:54,832 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.14s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:04:13,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:04:13,453 INFO L93 Difference]: Finished difference Result 4292 states and 5232 transitions. [2021-11-05 12:04:13,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-11-05 12:04:13,455 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 8.285714285714286) internal successors, (116), 13 states have internal predecessors, (116), 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 116 [2021-11-05 12:04:13,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:04:13,462 INFO L225 Difference]: With dead ends: 4292 [2021-11-05 12:04:13,462 INFO L226 Difference]: Without dead ends: 2924 [2021-11-05 12:04:13,464 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 2996.01ms TimeCoverageRelationStatistics Valid=161, Invalid=489, Unknown=0, NotChecked=0, Total=650 [2021-11-05 12:04:13,465 INFO L933 BasicCegarLoop]: 1498 mSDtfsCounter, 1866 mSDsluCounter, 9083 mSDsCounter, 0 mSdLazyCounter, 4360 mSolverCounterSat, 57 mSolverCounterUnsat, 7 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28636.11ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1866 SdHoareTripleChecker+Valid, 10581 SdHoareTripleChecker+Invalid, 4424 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 57.59ms SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 4360 IncrementalHoareTripleChecker+Invalid, 7 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 31053.09ms IncrementalHoareTripleChecker+Time [2021-11-05 12:04:13,465 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1866 Valid, 10581 Invalid, 4424 Unknown, 0 Unchecked, 57.59ms Time], IncrementalHoareTripleChecker [57 Valid, 4360 Invalid, 7 Unknown, 0 Unchecked, 31053.09ms Time] [2021-11-05 12:04:13,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2924 states. [2021-11-05 12:04:13,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2924 to 1875. [2021-11-05 12:04:13,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1875 states, 1855 states have (on average 1.2436657681940702) internal successors, (2307), 1874 states have internal predecessors, (2307), 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) [2021-11-05 12:04:13,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1875 states to 1875 states and 2307 transitions. [2021-11-05 12:04:13,532 INFO L78 Accepts]: Start accepts. Automaton has 1875 states and 2307 transitions. Word has length 116 [2021-11-05 12:04:13,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:04:13,533 INFO L470 AbstractCegarLoop]: Abstraction has 1875 states and 2307 transitions. [2021-11-05 12:04:13,533 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 8.285714285714286) internal successors, (116), 13 states have internal predecessors, (116), 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) [2021-11-05 12:04:13,533 INFO L276 IsEmpty]: Start isEmpty. Operand 1875 states and 2307 transitions. [2021-11-05 12:04:13,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 117 [2021-11-05 12:04:13,534 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:04:13,535 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:04:13,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-05 12:04:13,755 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:04:13,756 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:04:13,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:04:13,756 INFO L85 PathProgramCache]: Analyzing trace with hash 35849601, now seen corresponding path program 1 times [2021-11-05 12:04:13,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:04:13,756 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458256689] [2021-11-05 12:04:13,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:04:13,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:04:13,830 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 12:04:13,830 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2024011668] [2021-11-05 12:04:13,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:04:13,831 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:04:13,831 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:04:13,832 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) [2021-11-05 12:04:13,833 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-05 12:04:14,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:04:14,669 INFO L263 TraceCheckSpWp]: Trace formula consists of 3165 conjuncts, 48 conjunts are in the unsatisfiable core [2021-11-05 12:04:14,672 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:04:14,703 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 [2021-11-05 12:04:15,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:04:15,180 INFO L388 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 [2021-11-05 12:04:15,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:04:15,201 INFO L388 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 [2021-11-05 12:04:15,292 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-05 12:04:15,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2021-11-05 12:04:15,445 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-05 12:04:15,446 INFO L388 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 53 treesize of output 41 [2021-11-05 12:04:15,488 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-05 12:04:15,488 INFO L388 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 38 treesize of output 26 [2021-11-05 12:04:16,005 INFO L388 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 29 treesize of output 21 [2021-11-05 12:04:16,013 INFO L388 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 18 treesize of output 10 [2021-11-05 12:04:16,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:04:16,395 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 12:04:16,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:04:16,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458256689] [2021-11-05 12:04:16,395 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 12:04:16,395 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024011668] [2021-11-05 12:04:16,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024011668] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:04:16,395 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:04:16,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 12:04:16,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137734219] [2021-11-05 12:04:16,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:04:16,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 12:04:16,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:04:16,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 12:04:16,397 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:04:16,397 INFO L87 Difference]: Start difference. First operand 1875 states and 2307 transitions. Second operand has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 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) [2021-11-05 12:04:18,590 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:04:19,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:04:19,618 INFO L93 Difference]: Finished difference Result 2818 states and 3454 transitions. [2021-11-05 12:04:19,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 12:04:19,620 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 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 116 [2021-11-05 12:04:19,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:04:19,624 INFO L225 Difference]: With dead ends: 2818 [2021-11-05 12:04:19,625 INFO L226 Difference]: Without dead ends: 1863 [2021-11-05 12:04:19,626 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 357.30ms TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2021-11-05 12:04:19,627 INFO L933 BasicCegarLoop]: 583 mSDtfsCounter, 60 mSDsluCounter, 1106 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 10 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2708.90ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 1689 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.44ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3016.95ms IncrementalHoareTripleChecker+Time [2021-11-05 12:04:19,627 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [60 Valid, 1689 Invalid, 149 Unknown, 0 Unchecked, 2.44ms Time], IncrementalHoareTripleChecker [10 Valid, 138 Invalid, 1 Unknown, 0 Unchecked, 3016.95ms Time] [2021-11-05 12:04:19,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1863 states. [2021-11-05 12:04:19,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1863 to 1862. [2021-11-05 12:04:19,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1862 states, 1842 states have (on average 1.244299674267101) internal successors, (2292), 1861 states have internal predecessors, (2292), 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) [2021-11-05 12:04:19,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1862 states to 1862 states and 2292 transitions. [2021-11-05 12:04:19,742 INFO L78 Accepts]: Start accepts. Automaton has 1862 states and 2292 transitions. Word has length 116 [2021-11-05 12:04:19,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:04:19,743 INFO L470 AbstractCegarLoop]: Abstraction has 1862 states and 2292 transitions. [2021-11-05 12:04:19,743 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.571428571428573) internal successors, (116), 7 states have internal predecessors, (116), 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) [2021-11-05 12:04:19,743 INFO L276 IsEmpty]: Start isEmpty. Operand 1862 states and 2292 transitions. [2021-11-05 12:04:19,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-05 12:04:19,744 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:04:19,744 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:04:19,773 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-05 12:04:19,958 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-05 12:04:19,958 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:04:19,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:04:19,959 INFO L85 PathProgramCache]: Analyzing trace with hash 256441643, now seen corresponding path program 1 times [2021-11-05 12:04:19,959 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:04:19,959 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554550425] [2021-11-05 12:04:19,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:04:19,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:04:20,014 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 12:04:20,014 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [422912864] [2021-11-05 12:04:20,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:04:20,015 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:04:20,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:04:20,016 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) [2021-11-05 12:04:20,031 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-05 12:04:20,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:04:20,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 3179 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-05 12:04:20,830 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:04:21,493 INFO L388 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 17 treesize of output 9 [2021-11-05 12:04:21,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:04:21,816 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-05 12:04:21,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:04:21,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554550425] [2021-11-05 12:04:21,816 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 12:04:21,816 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [422912864] [2021-11-05 12:04:21,816 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [422912864] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-05 12:04:21,816 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:04:21,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-05 12:04:21,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434717466] [2021-11-05 12:04:21,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-05 12:04:21,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 12:04:21,817 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-05 12:04:21,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 12:04:21,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:04:21,818 INFO L87 Difference]: Start difference. First operand 1862 states and 2292 transitions. Second operand has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 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) [2021-11-05 12:04:31,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:04:31,109 INFO L93 Difference]: Finished difference Result 4581 states and 5588 transitions. [2021-11-05 12:04:31,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-11-05 12:04:31,111 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 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 119 [2021-11-05 12:04:31,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:04:31,120 INFO L225 Difference]: With dead ends: 4581 [2021-11-05 12:04:31,121 INFO L226 Difference]: Without dead ends: 2834 [2021-11-05 12:04:31,123 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 898.35ms TimeCoverageRelationStatistics Valid=82, Invalid=158, Unknown=0, NotChecked=0, Total=240 [2021-11-05 12:04:31,124 INFO L933 BasicCegarLoop]: 1797 mSDtfsCounter, 2041 mSDsluCounter, 4499 mSDsCounter, 0 mSdLazyCounter, 1915 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7148.66ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2041 SdHoareTripleChecker+Valid, 6296 SdHoareTripleChecker+Invalid, 1988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 31.84ms SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 1915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8274.20ms IncrementalHoareTripleChecker+Time [2021-11-05 12:04:31,124 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2041 Valid, 6296 Invalid, 1988 Unknown, 0 Unchecked, 31.84ms Time], IncrementalHoareTripleChecker [73 Valid, 1915 Invalid, 0 Unknown, 0 Unchecked, 8274.20ms Time] [2021-11-05 12:04:31,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2834 states. [2021-11-05 12:04:31,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2834 to 2244. [2021-11-05 12:04:31,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2244 states, 2224 states have (on average 1.2464028776978417) internal successors, (2772), 2243 states have internal predecessors, (2772), 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) [2021-11-05 12:04:31,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2244 states to 2244 states and 2772 transitions. [2021-11-05 12:04:31,325 INFO L78 Accepts]: Start accepts. Automaton has 2244 states and 2772 transitions. Word has length 119 [2021-11-05 12:04:31,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:04:31,325 INFO L470 AbstractCegarLoop]: Abstraction has 2244 states and 2772 transitions. [2021-11-05 12:04:31,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 17.0) internal successors, (119), 7 states have internal predecessors, (119), 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) [2021-11-05 12:04:31,325 INFO L276 IsEmpty]: Start isEmpty. Operand 2244 states and 2772 transitions. [2021-11-05 12:04:31,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2021-11-05 12:04:31,327 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:04:31,327 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:04:31,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-05 12:04:31,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:04:31,543 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:04:31,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:04:31,544 INFO L85 PathProgramCache]: Analyzing trace with hash -539957781, now seen corresponding path program 1 times [2021-11-05 12:04:31,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-05 12:04:31,544 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154346232] [2021-11-05 12:04:31,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:04:31,544 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-05 12:04:31,612 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-05 12:04:31,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [666955318] [2021-11-05 12:04:31,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:04:31,612 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:04:31,613 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:04:31,614 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) [2021-11-05 12:04:31,615 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-05 12:04:32,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:04:32,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 3179 conjuncts, 94 conjunts are in the unsatisfiable core [2021-11-05 12:04:32,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:04:33,619 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-05 12:04:33,620 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 1 case distinctions, treesize of input 9 treesize of output 11 [2021-11-05 12:04:34,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:04:34,044 INFO L388 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 13 [2021-11-05 12:04:34,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:04:34,081 INFO L388 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 [2021-11-05 12:04:34,128 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:04:34,129 INFO L388 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 13 [2021-11-05 12:04:34,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:04:34,250 INFO L388 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 161 treesize of output 137 [2021-11-05 12:04:34,260 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-05 12:04:34,831 INFO L354 Elim1Store]: treesize reduction 212, result has 40.9 percent of original size [2021-11-05 12:04:34,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 8 new quantified variables, introduced 12 case distinctions, treesize of input 146 treesize of output 268 [2021-11-05 12:04:34,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:04:34,858 INFO L388 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 432 treesize of output 360 [2021-11-05 12:04:37,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:04:37,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:04:37,885 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-05 12:04:38,043 INFO L354 Elim1Store]: treesize reduction 167, result has 19.7 percent of original size [2021-11-05 12:04:38,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 542 treesize of output 475 [2021-11-05 12:04:42,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:04:42,384 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-05 12:04:42,540 INFO L354 Elim1Store]: treesize reduction 102, result has 20.9 percent of original size [2021-11-05 12:04:42,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 9 case distinctions, treesize of input 482 treesize of output 320 [2021-11-05 12:04:46,034 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-05 12:04:46,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 323 treesize of output 323 [2021-11-05 12:04:48,352 INFO L354 Elim1Store]: treesize reduction 182, result has 22.9 percent of original size [2021-11-05 12:04:48,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 7 new quantified variables, introduced 13 case distinctions, treesize of input 377 treesize of output 289 [2021-11-05 12:04:48,366 INFO L388 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 289 treesize of output 261 [2021-11-05 12:04:48,381 INFO L388 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 261 treesize of output 225 [2021-11-05 12:05:06,718 INFO L173 IndexEqualityManager]: detected equality via solver [2021-11-05 12:05:06,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-05 12:05:07,322 INFO L354 Elim1Store]: treesize reduction 16, result has 89.8 percent of original size [2021-11-05 12:05:07,322 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 7 select indices, 7 select index equivalence classes, 1 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 20 case distinctions, treesize of input 388 treesize of output 389 [2021-11-05 12:06:20,052 WARN L230 SmtUtils]: Spent 48.23s on a formula simplification. DAG size of input: 8769 DAG size of output: 8738 [2021-11-05 12:10:56,847 WARN L228 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2021-11-05 12:10:56,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-05 12:10:56,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154346232] [2021-11-05 12:10:56,848 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-05 12:10:56,848 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666955318] [2021-11-05 12:10:56,848 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") [2021-11-05 12:10:56,848 INFO L186 FreeRefinementEngine]: Found 0 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:10:56,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-05 12:10:56,848 ERROR L172 FreeRefinementEngine]: Strategy CAMEL failed to provide any proof altough trace is infeasible [2021-11-05 12:10:56,848 INFO L628 BasicCegarLoop]: Counterexample might be feasible [2021-11-05 12:10:56,853 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (19 of 20 remaining) [2021-11-05 12:10:56,854 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (18 of 20 remaining) [2021-11-05 12:10:56,855 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (17 of 20 remaining) [2021-11-05 12:10:56,855 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (16 of 20 remaining) [2021-11-05 12:10:56,855 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (15 of 20 remaining) [2021-11-05 12:10:56,855 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (14 of 20 remaining) [2021-11-05 12:10:56,855 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONERROR_FUNCTION (13 of 20 remaining) [2021-11-05 12:10:56,855 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONERROR_FUNCTION (12 of 20 remaining) [2021-11-05 12:10:56,855 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (11 of 20 remaining) [2021-11-05 12:10:56,855 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (10 of 20 remaining) [2021-11-05 12:10:56,855 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10ASSERT_VIOLATIONERROR_FUNCTION (9 of 20 remaining) [2021-11-05 12:10:56,855 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11ASSERT_VIOLATIONERROR_FUNCTION (8 of 20 remaining) [2021-11-05 12:10:56,855 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12ASSERT_VIOLATIONERROR_FUNCTION (7 of 20 remaining) [2021-11-05 12:10:56,855 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13ASSERT_VIOLATIONERROR_FUNCTION (6 of 20 remaining) [2021-11-05 12:10:56,856 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14ASSERT_VIOLATIONERROR_FUNCTION (5 of 20 remaining) [2021-11-05 12:10:56,856 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15ASSERT_VIOLATIONERROR_FUNCTION (4 of 20 remaining) [2021-11-05 12:10:56,856 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16ASSERT_VIOLATIONERROR_FUNCTION (3 of 20 remaining) [2021-11-05 12:10:56,856 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17ASSERT_VIOLATIONERROR_FUNCTION (2 of 20 remaining) [2021-11-05 12:10:56,856 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18ASSERT_VIOLATIONERROR_FUNCTION (1 of 20 remaining) [2021-11-05 12:10:56,856 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19ASSERT_VIOLATIONERROR_FUNCTION (0 of 20 remaining) [2021-11-05 12:10:56,868 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 [2021-11-05 12:10:56,887 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-11-05 12:10:57,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-05 12:10:57,140 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:10:57,143 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-05 12:10:57,222 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.11 12:10:57 BoogieIcfgContainer [2021-11-05 12:10:57,222 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-05 12:10:57,223 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-05 12:10:57,223 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-05 12:10:57,223 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-05 12:10:57,224 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:01:20" (3/4) ... [2021-11-05 12:10:57,227 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-05 12:10:57,227 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-05 12:10:57,228 INFO L158 Benchmark]: Toolchain (without parser) took 588583.11ms. Allocated memory was 56.6MB in the beginning and 1.0GB in the end (delta: 960.5MB). Free memory was 27.9MB in the beginning and 914.3MB in the end (delta: -886.5MB). Peak memory consumption was 73.9MB. Max. memory is 16.1GB. [2021-11-05 12:10:57,228 INFO L158 Benchmark]: CDTParser took 0.41ms. Allocated memory is still 56.6MB. Free memory was 38.9MB in the beginning and 38.8MB in the end (delta: 43.3kB). There was no memory consumed. Max. memory is 16.1GB. [2021-11-05 12:10:57,229 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1722.86ms. Allocated memory was 56.6MB in the beginning and 86.0MB in the end (delta: 29.4MB). Free memory was 27.7MB in the beginning and 30.6MB in the end (delta: -2.8MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. [2021-11-05 12:10:57,229 INFO L158 Benchmark]: Boogie Procedure Inliner took 192.20ms. Allocated memory is still 86.0MB. Free memory was 30.6MB in the beginning and 29.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. [2021-11-05 12:10:57,229 INFO L158 Benchmark]: Boogie Preprocessor took 209.19ms. Allocated memory is still 86.0MB. Free memory was 29.3MB in the beginning and 27.7MB in the end (delta: 1.6MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2021-11-05 12:10:57,229 INFO L158 Benchmark]: RCFGBuilder took 9336.96ms. Allocated memory was 86.0MB in the beginning and 536.9MB in the end (delta: 450.9MB). Free memory was 27.7MB in the beginning and 479.4MB in the end (delta: -451.7MB). Peak memory consumption was 225.0MB. Max. memory is 16.1GB. [2021-11-05 12:10:57,231 INFO L158 Benchmark]: TraceAbstraction took 577107.70ms. Allocated memory was 536.9MB in the beginning and 1.0GB in the end (delta: 480.2MB). Free memory was 478.4MB in the beginning and 914.3MB in the end (delta: -435.9MB). Peak memory consumption was 644.1MB. Max. memory is 16.1GB. [2021-11-05 12:10:57,231 INFO L158 Benchmark]: Witness Printer took 4.36ms. Allocated memory is still 1.0GB. Free memory is still 914.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-11-05 12:10:57,239 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.41ms. Allocated memory is still 56.6MB. Free memory was 38.9MB in the beginning and 38.8MB in the end (delta: 43.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1722.86ms. Allocated memory was 56.6MB in the beginning and 86.0MB in the end (delta: 29.4MB). Free memory was 27.7MB in the beginning and 30.6MB in the end (delta: -2.8MB). Peak memory consumption was 34.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 192.20ms. Allocated memory is still 86.0MB. Free memory was 30.6MB in the beginning and 29.3MB in the end (delta: 1.3MB). Peak memory consumption was 2.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 209.19ms. Allocated memory is still 86.0MB. Free memory was 29.3MB in the beginning and 27.7MB in the end (delta: 1.6MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * RCFGBuilder took 9336.96ms. Allocated memory was 86.0MB in the beginning and 536.9MB in the end (delta: 450.9MB). Free memory was 27.7MB in the beginning and 479.4MB in the end (delta: -451.7MB). Peak memory consumption was 225.0MB. Max. memory is 16.1GB. * TraceAbstraction took 577107.70ms. Allocated memory was 536.9MB in the beginning and 1.0GB in the end (delta: 480.2MB). Free memory was 478.4MB in the beginning and 914.3MB in the end (delta: -435.9MB). Peak memory consumption was 644.1MB. Max. memory is 16.1GB. * Witness Printer took 4.36ms. Allocated memory is still 1.0GB. Free memory is still 914.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.00ms ErrorAutomatonConstructionTimeTotal, 0.00ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.00ms ErrorAutomatonConstructionTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeAvg, 0.00ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint, overapproximation of large string literal at line 7787. Possible FailurePath: [L2762-L2767] static struct aws_allocator s_can_fail_allocator_static = { .mem_acquire = s_can_fail_malloc_allocator, .mem_release = s_can_fail_free_allocator, .mem_realloc = s_can_fail_realloc_allocator, .mem_calloc = s_can_fail_calloc_allocator, }; [L7359] static __thread int tl_last_error = 0; [L7786-L7934] static struct aws_error_info errors[] = { [(AWS_ERROR_SUCCESS)-0x0000] = { .literal_name = "AWS_ERROR_SUCCESS", .error_code = (AWS_ERROR_SUCCESS), .error_str = ("Success."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SUCCESS" ", " "Success.", } , [(AWS_ERROR_OOM)-0x0000] = { .literal_name = "AWS_ERROR_OOM", .error_code = (AWS_ERROR_OOM), .error_str = ("Out of memory."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_OOM" ", " "Out of memory.", } , [(AWS_ERROR_UNKNOWN)-0x0000] = { .literal_name = "AWS_ERROR_UNKNOWN", .error_code = (AWS_ERROR_UNKNOWN), .error_str = ("Unknown error."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNKNOWN" ", " "Unknown error.", } , [(AWS_ERROR_SHORT_BUFFER)-0x0000] = { .literal_name = "AWS_ERROR_SHORT_BUFFER", .error_code = (AWS_ERROR_SHORT_BUFFER), .error_str = ("Buffer is not large enough to hold result."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SHORT_BUFFER" ", " "Buffer is not large enough to hold result.", } , [(AWS_ERROR_OVERFLOW_DETECTED)-0x0000] = { .literal_name = "AWS_ERROR_OVERFLOW_DETECTED", .error_code = (AWS_ERROR_OVERFLOW_DETECTED), .error_str = ("Fixed size value overflow was detected."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_OVERFLOW_DETECTED" ", " "Fixed size value overflow was detected.", } , [(AWS_ERROR_UNSUPPORTED_OPERATION)-0x0000] = { .literal_name = "AWS_ERROR_UNSUPPORTED_OPERATION", .error_code = (AWS_ERROR_UNSUPPORTED_OPERATION), .error_str = ("Unsupported operation."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNSUPPORTED_OPERATION" ", " "Unsupported operation.", } , [(AWS_ERROR_INVALID_BUFFER_SIZE)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_BUFFER_SIZE", .error_code = (AWS_ERROR_INVALID_BUFFER_SIZE), .error_str = ("Invalid buffer size."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_BUFFER_SIZE" ", " "Invalid buffer size.", } , [(AWS_ERROR_INVALID_HEX_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_HEX_STR", .error_code = (AWS_ERROR_INVALID_HEX_STR), .error_str = ("Invalid hex string."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_HEX_STR" ", " "Invalid hex string.", } , [(AWS_ERROR_INVALID_BASE64_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_BASE64_STR", .error_code = (AWS_ERROR_INVALID_BASE64_STR), .error_str = ("Invalid base64 string."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_BASE64_STR" ", " "Invalid base64 string.", } , [(AWS_ERROR_INVALID_INDEX)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_INDEX", .error_code = (AWS_ERROR_INVALID_INDEX), .error_str = ("Invalid index for list access."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_INDEX" ", " "Invalid index for list access.", } , [(AWS_ERROR_THREAD_INVALID_SETTINGS)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_INVALID_SETTINGS", .error_code = (AWS_ERROR_THREAD_INVALID_SETTINGS), .error_str = ("Invalid thread settings."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_INVALID_SETTINGS" ", " "Invalid thread settings.", } , [(AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE", .error_code = (AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE), .error_str = ("Insufficent resources for thread."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_INSUFFICIENT_RESOURCE" ", " "Insufficent resources for thread.", } , [(AWS_ERROR_THREAD_NO_PERMISSIONS)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NO_PERMISSIONS", .error_code = (AWS_ERROR_THREAD_NO_PERMISSIONS), .error_str = ("Insufficient permissions for thread operation."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NO_PERMISSIONS" ", " "Insufficient permissions for thread operation.", } , [(AWS_ERROR_THREAD_NOT_JOINABLE)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NOT_JOINABLE", .error_code = (AWS_ERROR_THREAD_NOT_JOINABLE), .error_str = ("Thread not joinable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NOT_JOINABLE" ", " "Thread not joinable.", } , [(AWS_ERROR_THREAD_NO_SUCH_THREAD_ID)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_NO_SUCH_THREAD_ID", .error_code = (AWS_ERROR_THREAD_NO_SUCH_THREAD_ID), .error_str = ("No such thread ID."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_NO_SUCH_THREAD_ID" ", " "No such thread ID.", } , [(AWS_ERROR_THREAD_DEADLOCK_DETECTED)-0x0000] = { .literal_name = "AWS_ERROR_THREAD_DEADLOCK_DETECTED", .error_code = (AWS_ERROR_THREAD_DEADLOCK_DETECTED), .error_str = ("Deadlock detected in thread."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_THREAD_DEADLOCK_DETECTED" ", " "Deadlock detected in thread.", } , [(AWS_ERROR_MUTEX_NOT_INIT)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_NOT_INIT", .error_code = (AWS_ERROR_MUTEX_NOT_INIT), .error_str = ("Mutex not initialized."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_NOT_INIT" ", " "Mutex not initialized.", } , [(AWS_ERROR_MUTEX_TIMEOUT)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_TIMEOUT", .error_code = (AWS_ERROR_MUTEX_TIMEOUT), .error_str = ("Mutex operation timed out."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_TIMEOUT" ", " "Mutex operation timed out.", } , [(AWS_ERROR_MUTEX_CALLER_NOT_OWNER)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_CALLER_NOT_OWNER", .error_code = (AWS_ERROR_MUTEX_CALLER_NOT_OWNER), .error_str = ("The caller of a mutex operation was not the owner."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_CALLER_NOT_OWNER" ", " "The caller of a mutex operation was not the owner.", } , [(AWS_ERROR_MUTEX_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_MUTEX_FAILED", .error_code = (AWS_ERROR_MUTEX_FAILED), .error_str = ("Mutex operation failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MUTEX_FAILED" ", " "Mutex operation failed.", } , [(AWS_ERROR_COND_VARIABLE_INIT_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_INIT_FAILED", .error_code = (AWS_ERROR_COND_VARIABLE_INIT_FAILED), .error_str = ("Condition variable initialization failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_INIT_FAILED" ", " "Condition variable initialization failed.", } , [(AWS_ERROR_COND_VARIABLE_TIMED_OUT)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_TIMED_OUT", .error_code = (AWS_ERROR_COND_VARIABLE_TIMED_OUT), .error_str = ("Condition variable wait timed out."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_TIMED_OUT" ", " "Condition variable wait timed out.", } , [(AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN)-0x0000] = { .literal_name = "AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN", .error_code = (AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN), .error_str = ("Condition variable unknown error."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_COND_VARIABLE_ERROR_UNKNOWN" ", " "Condition variable unknown error.", } , [(AWS_ERROR_CLOCK_FAILURE)-0x0000] = { .literal_name = "AWS_ERROR_CLOCK_FAILURE", .error_code = (AWS_ERROR_CLOCK_FAILURE), .error_str = ("Clock operation failed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_CLOCK_FAILURE" ", " "Clock operation failed.", } , [(AWS_ERROR_LIST_EMPTY)-0x0000] = { .literal_name = "AWS_ERROR_LIST_EMPTY", .error_code = (AWS_ERROR_LIST_EMPTY), .error_str = ("Empty list."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_EMPTY" ", " "Empty list.", } , [(AWS_ERROR_DEST_COPY_TOO_SMALL)-0x0000] = { .literal_name = "AWS_ERROR_DEST_COPY_TOO_SMALL", .error_code = (AWS_ERROR_DEST_COPY_TOO_SMALL), .error_str = ("Destination of copy is too small."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_DEST_COPY_TOO_SMALL" ", " "Destination of copy is too small.", } , [(AWS_ERROR_LIST_EXCEEDS_MAX_SIZE)-0x0000] = { .literal_name = "AWS_ERROR_LIST_EXCEEDS_MAX_SIZE", .error_code = (AWS_ERROR_LIST_EXCEEDS_MAX_SIZE), .error_str = ("A requested operation on a list would exceed it's max size."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_EXCEEDS_MAX_SIZE" ", " "A requested operation on a list would exceed it's max size.", } , [(AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK)-0x0000] = { .literal_name = "AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK", .error_code = (AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK), .error_str = ("Attempt to shrink a list in static mode."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_LIST_STATIC_MODE_CANT_SHRINK" ", " "Attempt to shrink a list in static mode.", } , [(AWS_ERROR_PRIORITY_QUEUE_FULL)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_FULL", .error_code = (AWS_ERROR_PRIORITY_QUEUE_FULL), .error_str = ("Attempt to add items to a full preallocated queue in static mode."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_FULL" ", " "Attempt to add items to a full preallocated queue in static mode.", } , [(AWS_ERROR_PRIORITY_QUEUE_EMPTY)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_EMPTY", .error_code = (AWS_ERROR_PRIORITY_QUEUE_EMPTY), .error_str = ("Attempt to pop an item from an empty queue."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_EMPTY" ", " "Attempt to pop an item from an empty queue.", } , [(AWS_ERROR_PRIORITY_QUEUE_BAD_NODE)-0x0000] = { .literal_name = "AWS_ERROR_PRIORITY_QUEUE_BAD_NODE", .error_code = (AWS_ERROR_PRIORITY_QUEUE_BAD_NODE), .error_str = ("Bad node handle passed to remove."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_PRIORITY_QUEUE_BAD_NODE" ", " "Bad node handle passed to remove.", } , [(AWS_ERROR_HASHTBL_ITEM_NOT_FOUND)-0x0000] = { .literal_name = "AWS_ERROR_HASHTBL_ITEM_NOT_FOUND", .error_code = (AWS_ERROR_HASHTBL_ITEM_NOT_FOUND), .error_str = ("Item not found in hash table."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_HASHTBL_ITEM_NOT_FOUND" ", " "Item not found in hash table.", } , [(AWS_ERROR_INVALID_DATE_STR)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_DATE_STR", .error_code = (AWS_ERROR_INVALID_DATE_STR), .error_str = ("Date string is invalid and cannot be parsed."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_DATE_STR" ", " "Date string is invalid and cannot be parsed.", } , [(AWS_ERROR_INVALID_ARGUMENT)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_ARGUMENT", .error_code = (AWS_ERROR_INVALID_ARGUMENT), .error_str = ("An invalid argument was passed to a function."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_ARGUMENT" ", " "An invalid argument was passed to a function.", } , [(AWS_ERROR_RANDOM_GEN_FAILED)-0x0000] = { .literal_name = "AWS_ERROR_RANDOM_GEN_FAILED", .error_code = (AWS_ERROR_RANDOM_GEN_FAILED), .error_str = ("A call to the random number generator failed. Retry later."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_RANDOM_GEN_FAILED" ", " "A call to the random number generator failed. Retry later.", } , [(AWS_ERROR_MALFORMED_INPUT_STRING)-0x0000] = { .literal_name = "AWS_ERROR_MALFORMED_INPUT_STRING", .error_code = (AWS_ERROR_MALFORMED_INPUT_STRING), .error_str = ("An input string was passed to a parser and the string was incorrectly formatted."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MALFORMED_INPUT_STRING" ", " "An input string was passed to a parser and the string was incorrectly formatted.", } , [(AWS_ERROR_UNIMPLEMENTED)-0x0000] = { .literal_name = "AWS_ERROR_UNIMPLEMENTED", .error_code = (AWS_ERROR_UNIMPLEMENTED), .error_str = ("A function was called, but is not implemented."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_UNIMPLEMENTED" ", " "A function was called, but is not implemented.", } , [(AWS_ERROR_INVALID_STATE)-0x0000] = { .literal_name = "AWS_ERROR_INVALID_STATE", .error_code = (AWS_ERROR_INVALID_STATE), .error_str = ("An invalid state was encountered."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_INVALID_STATE" ", " "An invalid state was encountered.", } , [(AWS_ERROR_ENVIRONMENT_GET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_GET", .error_code = (AWS_ERROR_ENVIRONMENT_GET), .error_str = ("System call failure when getting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_GET" ", " "System call failure when getting an environment variable.", } , [(AWS_ERROR_ENVIRONMENT_SET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_SET", .error_code = (AWS_ERROR_ENVIRONMENT_SET), .error_str = ("System call failure when setting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_SET" ", " "System call failure when setting an environment variable.", } , [(AWS_ERROR_ENVIRONMENT_UNSET)-0x0000] = { .literal_name = "AWS_ERROR_ENVIRONMENT_UNSET", .error_code = (AWS_ERROR_ENVIRONMENT_UNSET), .error_str = ("System call failure when unsetting an environment variable."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_ENVIRONMENT_UNSET" ", " "System call failure when unsetting an environment variable.", } , [(AWS_ERROR_SYS_CALL_FAILURE)-0x0000] = { .literal_name = "AWS_ERROR_SYS_CALL_FAILURE", .error_code = (AWS_ERROR_SYS_CALL_FAILURE), .error_str = ("System call failure"), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_SYS_CALL_FAILURE" ", " "System call failure", } , [(AWS_ERROR_FILE_INVALID_PATH)-0x0000] = { .literal_name = "AWS_ERROR_FILE_INVALID_PATH", .error_code = (AWS_ERROR_FILE_INVALID_PATH), .error_str = ("Invalid file path."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_FILE_INVALID_PATH" ", " "Invalid file path.", } , [(AWS_ERROR_MAX_FDS_EXCEEDED)-0x0000] = { .literal_name = "AWS_ERROR_MAX_FDS_EXCEEDED", .error_code = (AWS_ERROR_MAX_FDS_EXCEEDED), .error_str = ("The maximum number of fds has been exceeded."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_MAX_FDS_EXCEEDED" ", " "The maximum number of fds has been exceeded.", } , [(AWS_ERROR_NO_PERMISSION)-0x0000] = { .literal_name = "AWS_ERROR_NO_PERMISSION", .error_code = (AWS_ERROR_NO_PERMISSION), .error_str = ("User does not have permission to perform the requested action."), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_NO_PERMISSION" ", " "User does not have permission to perform the requested action.", } , [(AWS_ERROR_STREAM_UNSEEKABLE)-0x0000] = { .literal_name = "AWS_ERROR_STREAM_UNSEEKABLE", .error_code = (AWS_ERROR_STREAM_UNSEEKABLE), .error_str = ("Stream does not support seek operations"), .lib_name = ("aws-c-common"), .formatted_name = "aws-c-common" ": " "AWS_ERROR_STREAM_UNSEEKABLE" ", " "Stream does not support seek operations", } , }; [L7937-L7940] static struct aws_error_info_list s_list = { .error_list = errors, .count = (sizeof(errors) / sizeof((errors)[0])), }; [L7942-L7951] static struct aws_log_subject_info s_common_log_subject_infos[] = { { .subject_id = (AWS_LS_COMMON_GENERAL), .subject_name = ("aws-c-common"), .subject_description = ("Subject for aws-c-common logging that doesn't belong to any particular category") } , { .subject_id = (AWS_LS_COMMON_TASK_SCHEDULER), .subject_name = ("task-scheduler"), .subject_description = ("Subject for task scheduler or task specific logging.") } , }; [L7953-L7956] static struct aws_log_subject_info_list s_common_log_subject_list = { .subject_list = s_common_log_subject_infos, .count = (sizeof(s_common_log_subject_infos) / sizeof((s_common_log_subject_infos)[0])), }; [L7958-L7962] static _Bool s_common_library_initialized = 0 ; [L7976] struct aws_array_list list = {0, __VERIFIER_nondet_ulong(), __VERIFIER_nondet_ulong(), __VERIFIER_nondet_ulong(), 0}; [L7005] EXPR list->item_size [L7004-L7005] _Bool item_size_is_bounded = list->item_size <= max_item_size; [L7008] EXPR list->length [L7007-L7008] _Bool length_is_bounded = list->length <= max_initial_item_allocation; [L7009] return item_size_is_bounded && length_is_bounded; [L211] COND FALSE !(!cond) [L7013] EXPR list->current_size [L7013] list->current_size == 0 && list->length == 0 [L7013] COND FALSE !(list->current_size == 0 && list->length == 0) [L7019] EXPR list->current_size [L211] COND FALSE !(!cond) [L2782] return malloc(size); [L7019] list->data = bounded_malloc(list->current_size) [L261] return __VERIFIER_nondet_bool(); [L7020-L7022] EXPR nondet_bool() ? ((void *)0) : can_fail_allocator() [L7020-L7022] list->alloc = nondet_bool() ? ((void *)0) : can_fail_allocator() [L3263] COND FALSE !(!list) [L3268] size_t required_size = 0; [L3272] EXPR list->length [L3272] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2496] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2498] *r = a * b [L2499] return (0); [L2588] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L3270-L3272] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L3275] EXPR list->current_size [L3275] EXPR \read(required_size) [L3274-L3275] _Bool current_size_is_valid = (list->current_size >= required_size); [L3279] EXPR list->current_size [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279-L3281] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L3281] EXPR list->current_size [L3281] EXPR (((list->current_size)) == 0) || ((list->data)) [L3281] EXPR list->data [L3281] EXPR (((list->current_size)) == 0) || ((list->data)) [L3279-L3281] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L3277-L3281] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L3284] EXPR list->item_size [L3283-L3284] _Bool item_size_is_valid = (list->item_size != 0); [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L3268] size_t required_size = 0; [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L211] COND FALSE !(!cond) [L7982] list.data [L211] COND FALSE !(!cond) [L7985] size_t malloc_size; [L7986] list.item_size [L211] COND FALSE !(!cond) [L261] return __VERIFIER_nondet_bool(); [L2796-L2798] EXPR nondet_bool() ? ((void *)0) : bounded_malloc(size) [L211] COND FALSE !(!cond) [L2782] return malloc(size); [L2796-L2798] EXPR nondet_bool() ? ((void *)0) : bounded_malloc(size) [L2796-L2798] return nondet_bool() ? ((void *)0) : bounded_malloc(size); [L7987] void *val = can_fail_malloc(malloc_size); [L7988] size_t index; [L7991] struct aws_array_list old = list; [L7992] struct store_byte_from_buffer old_byte; [L7993] list.data [L7993] list.current_size [L7183] COND TRUE size > 0 && array && storage [L263] return __VERIFIER_nondet_ulong(); [L7184] storage->index = nondet_size_t() [L7185] storage->index [L211] COND FALSE !(!cond) [L7186] EXPR storage->index [L7186] EXPR array[storage->index] [L7186] storage->byte = array[storage->index] [L3263] COND FALSE !(!list) [L3268] size_t required_size = 0; [L3272] EXPR list->length [L3272] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2496] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2498] *r = a * b [L2499] return (0); [L2588] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L3270-L3272] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L3275] EXPR list->current_size [L3275] EXPR \read(required_size) [L3274-L3275] _Bool current_size_is_valid = (list->current_size >= required_size); [L3279] EXPR list->current_size [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279] EXPR list->data [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279-L3281] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L3277-L3281] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L3284] EXPR list->item_size [L3283-L3284] _Bool item_size_is_valid = (list->item_size != 0); [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L3268] size_t required_size = 0; [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L211] COND FALSE !(!cond) [L7997] val && ((((list.item_size)) == 0) || ((val))) [L7997] EXPR list.item_size [L7997] val && ((((list.item_size)) == 0) || ((val))) [L211] COND FALSE !(!cond) [L3263] COND FALSE !(!list) [L3268] size_t required_size = 0; [L3272] EXPR list->length [L3272] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2496] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2498] *r = a * b [L2499] return (0); [L2588] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L3270-L3272] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L3275] EXPR list->current_size [L3275] EXPR \read(required_size) [L3274-L3275] _Bool current_size_is_valid = (list->current_size >= required_size); [L3279] EXPR list->current_size [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279] EXPR list->data [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279-L3281] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L3277-L3281] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L3284] EXPR list->item_size [L3283-L3284] _Bool item_size_is_valid = (list->item_size != 0); [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L3268] size_t required_size = 0; [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L211] COND FALSE !(!cond) [L3533] val && ((((list->item_size)) == 0) || ((val))) [L3533] EXPR list->item_size [L3533] val && ((((list->item_size)) == 0) || ((val))) [L211] COND FALSE !(!cond) [L3263] COND FALSE !(!list) [L3268] size_t required_size = 0; [L3272] EXPR list->length [L3272] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2496] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2498] *r = a * b [L2499] return (0); [L2588] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L3270-L3272] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L3275] EXPR list->current_size [L3275] EXPR \read(required_size) [L3274-L3275] _Bool current_size_is_valid = (list->current_size >= required_size); [L3279] EXPR list->current_size [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279] EXPR list->data [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279-L3281] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L3277-L3281] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L3284] EXPR list->item_size [L3283-L3284] _Bool item_size_is_valid = (list->item_size != 0); [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L3268] size_t required_size = 0; [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L211] COND FALSE !(!cond) [L7513] size_t necessary_size; [L3263] COND FALSE !(!list) [L3268] size_t required_size = 0; [L3272] EXPR list->length [L3272] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2496] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2498] *r = a * b [L2499] return (0); [L2588] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L3270-L3272] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L3275] EXPR list->current_size [L3275] EXPR \read(required_size) [L3274-L3275] _Bool current_size_is_valid = (list->current_size >= required_size); [L3279] EXPR list->current_size [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279] EXPR list->data [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279-L3281] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L3277-L3281] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L3284] EXPR list->item_size [L3283-L3284] _Bool item_size_is_valid = (list->item_size != 0); [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L3268] size_t required_size = 0; [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L211] COND FALSE !(!cond) [L7412] size_t index_inc; [L249] unsigned long c; [L250] return __builtin_uaddl_overflow(a, b, &c); [L250] return __builtin_uaddl_overflow(a, b, &c); [L2540] COND TRUE __CPROVER_overflow_plus(a, b) [L7366] tl_last_error = err [L1998] return (-1); [L2541] return aws_raise_error(AWS_ERROR_OVERFLOW_DETECTED); [L2615] return aws_add_u64_checked(a, b, (uint64_t *)r); [L7413] COND TRUE aws_add_size_checked(index, 1, &index_inc) [L3263] COND FALSE !(!list) [L3268] size_t required_size = 0; [L3272] EXPR list->length [L3272] EXPR list->item_size [L254] unsigned long c; [L255] return __builtin_umull_overflow(a, b, &c); [L255] return __builtin_umull_overflow(a, b, &c); [L2496] COND FALSE !(__CPROVER_overflow_mult(a, b)) [L2498] *r = a * b [L2499] return (0); [L2588] return aws_mul_u64_checked(a, b, (uint64_t *)r); [L3270-L3272] _Bool required_size_is_valid = (aws_mul_size_checked(list->length, list->item_size, &required_size) == (0)); [L3275] EXPR list->current_size [L3275] EXPR \read(required_size) [L3274-L3275] _Bool current_size_is_valid = (list->current_size >= required_size); [L3279] EXPR list->current_size [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279] EXPR list->data [L3279-L3280] EXPR list->current_size == 0 && list->data == ((void *)0) [L3279-L3281] EXPR (list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data))) [L3277-L3281] _Bool data_is_valid = ((list->current_size == 0 && list->data == ((void *)0) ) || ((((list->current_size)) == 0) || ((list->data)))); [L3284] EXPR list->item_size [L3283-L3284] _Bool item_size_is_valid = (list->item_size != 0); [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L3268] size_t required_size = 0; [L3285] return required_size_is_valid && current_size_is_valid && data_is_valid && item_size_is_valid; [L223] COND TRUE !cond [L223] reach_error() - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 223]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 499 locations, 20 error locations. Started 1 CEGAR loops. OverallTime: 576972.92ms, OverallIterations: 20, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 40.98ms, AutomataDifference: 150555.55ms, DeadEndRemovalTime: 0.00ms, HoareAnnotationTime: 0.00ms, InitialAbstractionConstructionTime: 18.11ms, PartialOrderReductionTime: 0.00ms, HoareTripleCheckerStatistics: 30 mSolverCounterUnknown, 20345 SdHoareTripleChecker+Valid, 134885.90ms IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20345 mSDsluCounter, 65606 SdHoareTripleChecker+Invalid, 124114.33ms Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 50323 mSDsCounter, 875 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 18559 IncrementalHoareTripleChecker+Invalid, 19464 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 875 mSolverCounterUnsat, 15283 mSDtfsCounter, 18559 mSolverCounterSat, 292.35ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1834 GetRequests, 1615 SyntacticMatches, 0 SemanticMatches, 219 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 991 ImplicationChecksByTransitivity, 19032.73ms Time, 0.00ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=2244occurred in iteration=19, InterpolantAutomatonStates: 196, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.00ms DumpTime, AutomataMinimizationStatistics: 859.40ms AutomataMinimizationTime, 19 MinimizatonAttempts, 4334 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 2130.97ms SsaConstructionTime, 10108.17ms SatisfiabilityAnalysisTime, 406785.52ms InterpolantComputationTime, 2024 NumberOfCodeBlocks, 2024 NumberOfCodeBlocksAsserted, 20 NumberOfCheckSat, 1886 ConstructedInterpolants, 0 QuantifiedInterpolants, 7577 SizeOfPredicates, 239 NumberOfNonLiveVariables, 52794 ConjunctsInSsa, 620 ConjunctsInUnsatCore, 19 InterpolantComputations, 19 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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_set_at_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.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 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-5f08f0f [2021-11-05 12:10:58,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-05 12:10:58,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-05 12:10:58,904 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-05 12:10:58,905 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-05 12:10:58,907 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-05 12:10:58,909 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-05 12:10:58,913 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-05 12:10:58,915 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-05 12:10:58,919 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-05 12:10:58,920 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-05 12:10:58,921 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-05 12:10:58,921 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-05 12:10:58,923 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-05 12:10:58,924 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-05 12:10:58,928 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-05 12:10:58,929 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-05 12:10:58,930 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-05 12:10:58,932 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-05 12:10:58,937 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-05 12:10:58,938 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-05 12:10:58,939 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-05 12:10:58,940 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-05 12:10:58,941 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-05 12:10:58,946 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-05 12:10:58,947 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-05 12:10:58,947 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-05 12:10:58,948 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-05 12:10:58,949 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-05 12:10:58,949 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-05 12:10:58,949 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-05 12:10:58,950 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-05 12:10:58,951 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-05 12:10:58,951 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-05 12:10:58,952 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-05 12:10:58,953 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-05 12:10:58,953 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-05 12:10:58,953 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-05 12:10:58,953 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-05 12:10:58,954 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-05 12:10:58,955 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-05 12:10:58,958 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Bitvector.epf [2021-11-05 12:10:58,992 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-05 12:10:58,993 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-05 12:10:58,994 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-05 12:10:58,994 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-05 12:10:58,995 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-05 12:10:58,995 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-05 12:10:58,996 INFO L138 SettingsManager]: * Use SBE=true [2021-11-05 12:10:58,996 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-05 12:10:58,996 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-05 12:10:58,996 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-05 12:10:58,997 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-05 12:10:58,997 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-05 12:10:58,997 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-05 12:10:58,997 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-05 12:10:58,998 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-05 12:10:58,998 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-05 12:10:58,998 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-05 12:10:58,998 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-05 12:10:58,998 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-05 12:10:59,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-05 12:10:59,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 12:10:59,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-05 12:10:59,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-05 12:10:59,005 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-05 12:10:59,005 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-11-05 12:10:59,005 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-05 12:10:59,005 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-05 12:10:59,006 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-05 12:10:59,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-05 12:10:59,006 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-05 12:10:59,006 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-05 12:10:59,006 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 156ab79a85c4b985ced0d661dede185c573e9f8e4fcba49b00d62d883c71bbed [2021-11-05 12:10:59,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-05 12:10:59,268 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-05 12:10:59,270 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-05 12:10:59,271 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-05 12:10:59,272 INFO L275 PluginConnector]: CDTParser initialized [2021-11-05 12:10:59,273 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2021-11-05 12:10:59,315 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8a17e5bc/f8ec8eaab5944af993990b360d436f5a/FLAG1e3d5126d [2021-11-05 12:11:00,049 INFO L306 CDTParser]: Found 1 translation units. [2021-11-05 12:11:00,050 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_array_list_set_at_harness.i [2021-11-05 12:11:00,081 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8a17e5bc/f8ec8eaab5944af993990b360d436f5a/FLAG1e3d5126d [2021-11-05 12:11:00,185 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d8a17e5bc/f8ec8eaab5944af993990b360d436f5a [2021-11-05 12:11:00,187 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-05 12:11:00,188 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-05 12:11:00,189 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-05 12:11:00,189 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-05 12:11:00,192 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-05 12:11:00,192 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 12:11:00" (1/1) ... [2021-11-05 12:11:00,193 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@119e86a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:11:00, skipping insertion in model container [2021-11-05 12:11:00,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.11 12:11:00" (1/1) ... [2021-11-05 12:11:00,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-05 12:11:00,266 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-05 12:11:00,572 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_set_at_harness.i[4495,4508] [2021-11-05 12:11:00,583 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_set_at_harness.i[4555,4568] [2021-11-05 12:11:00,607 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 12:11:00,613 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 12:11:01,096 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 12:11:01,158 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,158 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,159 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,159 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,160 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,172 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,172 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,173 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,174 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,175 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,175 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,176 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,176 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,387 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 12:11:01,390 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 12:11:01,391 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 12:11:01,395 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 12:11:01,399 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 12:11:01,400 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 12:11:01,401 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 12:11:01,403 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 12:11:01,406 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 12:11:01,406 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 12:11:01,540 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,552 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,602 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,602 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,603 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 12:11:01,641 INFO L203 MainTranslator]: Completed pre-run [2021-11-05 12:11:01,662 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_set_at_harness.i[4495,4508] [2021-11-05 12:11:01,663 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_set_at_harness.i[4555,4568] [2021-11-05 12:11:01,668 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-05 12:11:01,668 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-05 12:11:01,719 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-05 12:11:01,739 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,740 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,740 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,741 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,741 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,749 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,750 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,751 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,751 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,753 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,753 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,753 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,754 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,781 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-05 12:11:01,782 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-05 12:11:01,782 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-05 12:11:01,783 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-05 12:11:01,784 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-05 12:11:01,784 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-05 12:11:01,784 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-05 12:11:01,784 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-05 12:11:01,785 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-05 12:11:01,785 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-05 12:11:01,824 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,828 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,860 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,860 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,860 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-05 12:11:01,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-05 12:11:02,032 INFO L208 MainTranslator]: Completed translation [2021-11-05 12:11:02,032 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:11:02 WrapperNode [2021-11-05 12:11:02,032 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-05 12:11:02,033 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-05 12:11:02,033 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-05 12:11:02,034 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-05 12:11:02,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:11:02" (1/1) ... [2021-11-05 12:11:02,140 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:11:02" (1/1) ... [2021-11-05 12:11:02,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-05 12:11:02,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-05 12:11:02,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-05 12:11:02,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-05 12:11:02,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:11:02" (1/1) ... [2021-11-05 12:11:02,262 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:11:02" (1/1) ... [2021-11-05 12:11:02,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:11:02" (1/1) ... [2021-11-05 12:11:02,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:11:02" (1/1) ... [2021-11-05 12:11:02,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:11:02" (1/1) ... [2021-11-05 12:11:02,380 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:11:02" (1/1) ... [2021-11-05 12:11:02,395 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:11:02" (1/1) ... [2021-11-05 12:11:02,414 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-05 12:11:02,415 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-05 12:11:02,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-05 12:11:02,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-05 12:11:02,417 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:11:02" (1/1) ... [2021-11-05 12:11:02,422 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-05 12:11:02,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-05 12:11:02,445 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) [2021-11-05 12:11:02,493 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 [2021-11-05 12:11:02,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-05 12:11:02,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-05 12:11:02,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-05 12:11:02,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE8 [2021-11-05 12:11:02,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-05 12:11:02,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-05 12:11:02,516 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-05 12:11:02,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-05 12:11:02,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-05 12:11:02,517 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2021-11-05 12:11:02,517 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_uaddl_overflow [2021-11-05 12:11:02,518 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-05 12:11:02,518 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-05 12:11:02,518 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-05 12:11:02,518 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2021-11-05 12:11:02,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-05 12:11:02,519 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-05 12:11:15,266 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-05 12:11:15,266 INFO L299 CfgBuilder]: Removed 428 assume(true) statements. [2021-11-05 12:11:15,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:11:15 BoogieIcfgContainer [2021-11-05 12:11:15,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-05 12:11:15,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-05 12:11:15,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-05 12:11:15,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-05 12:11:15,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.11 12:11:00" (1/3) ... [2021-11-05 12:11:15,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40217afb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 12:11:15, skipping insertion in model container [2021-11-05 12:11:15,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.11 12:11:02" (2/3) ... [2021-11-05 12:11:15,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40217afb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.11 12:11:15, skipping insertion in model container [2021-11-05 12:11:15,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.11 12:11:15" (3/3) ... [2021-11-05 12:11:15,273 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_array_list_set_at_harness.i [2021-11-05 12:11:15,281 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-05 12:11:15,281 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2021-11-05 12:11:15,329 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-05 12:11:15,340 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 [2021-11-05 12:11:15,341 INFO L340 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2021-11-05 12:11:15,365 INFO L276 IsEmpty]: Start isEmpty. Operand has 499 states, 478 states have (on average 1.405857740585774) internal successors, (672), 498 states have internal predecessors, (672), 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) [2021-11-05 12:11:15,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-05 12:11:15,373 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:11:15,374 INFO L514 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] [2021-11-05 12:11:15,374 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:11:15,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:11:15,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1815671953, now seen corresponding path program 1 times [2021-11-05 12:11:15,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 12:11:15,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [207400901] [2021-11-05 12:11:15,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:11:15,396 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 12:11:15,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 12:11:15,398 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 12:11:15,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-05 12:11:17,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:11:17,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 1493 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-05 12:11:17,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:11:17,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:11:17,853 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 12:11:18,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:11:18,019 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 12:11:18,020 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [207400901] [2021-11-05 12:11:18,020 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [207400901] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 12:11:18,020 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:11:18,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-05 12:11:18,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883791780] [2021-11-05 12:11:18,022 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 12:11:18,025 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-05 12:11:18,025 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 12:11:18,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-05 12:11:18,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 12:11:18,045 INFO L87 Difference]: Start difference. First operand has 499 states, 478 states have (on average 1.405857740585774) internal successors, (672), 498 states have internal predecessors, (672), 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 29.0) internal successors, (58), 2 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) [2021-11-05 12:11:18,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:11:18,085 INFO L93 Difference]: Finished difference Result 994 states and 1339 transitions. [2021-11-05 12:11:18,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-05 12:11:18,087 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 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 [2021-11-05 12:11:18,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:11:18,096 INFO L225 Difference]: With dead ends: 994 [2021-11-05 12:11:18,096 INFO L226 Difference]: Without dead ends: 494 [2021-11-05 12:11:18,100 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.47ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-05 12:11:18,103 INFO L933 BasicCegarLoop]: 624 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.00ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.26ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.00ms IncrementalHoareTripleChecker+Time [2021-11-05 12:11:18,103 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 624 Invalid, 0 Unknown, 0 Unchecked, 3.26ms Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.00ms Time] [2021-11-05 12:11:18,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2021-11-05 12:11:18,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2021-11-05 12:11:18,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 494 states, 474 states have (on average 1.3059071729957805) internal successors, (619), 493 states have internal predecessors, (619), 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) [2021-11-05 12:11:18,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 619 transitions. [2021-11-05 12:11:18,147 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 619 transitions. Word has length 58 [2021-11-05 12:11:18,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:11:18,148 INFO L470 AbstractCegarLoop]: Abstraction has 494 states and 619 transitions. [2021-11-05 12:11:18,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 29.0) internal successors, (58), 2 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) [2021-11-05 12:11:18,148 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 619 transitions. [2021-11-05 12:11:18,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-05 12:11:18,150 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:11:18,150 INFO L514 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] [2021-11-05 12:11:18,191 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-11-05 12:11:18,375 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 12:11:18,376 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:11:18,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:11:18,376 INFO L85 PathProgramCache]: Analyzing trace with hash 145257767, now seen corresponding path program 1 times [2021-11-05 12:11:18,382 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 12:11:18,383 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [620108075] [2021-11-05 12:11:18,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:11:18,384 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 12:11:18,384 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 12:11:18,385 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 12:11:18,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-05 12:11:20,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:11:20,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 1493 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-05 12:11:20,580 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:11:20,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:11:20,943 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 12:11:21,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:11:21,184 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 12:11:21,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [620108075] [2021-11-05 12:11:21,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [620108075] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 12:11:21,184 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:11:21,184 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-05 12:11:21,184 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [475632817] [2021-11-05 12:11:21,185 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 12:11:21,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-05 12:11:21,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 12:11:21,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-05 12:11:21,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 12:11:21,187 INFO L87 Difference]: Start difference. First operand 494 states and 619 transitions. Second operand has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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) [2021-11-05 12:11:21,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:11:21,243 INFO L93 Difference]: Finished difference Result 975 states and 1223 transitions. [2021-11-05 12:11:21,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-05 12:11:21,244 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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 [2021-11-05 12:11:21,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:11:21,246 INFO L225 Difference]: With dead ends: 975 [2021-11-05 12:11:21,246 INFO L226 Difference]: Without dead ends: 495 [2021-11-05 12:11:21,248 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 113 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 17.38ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-05 12:11:21,249 INFO L933 BasicCegarLoop]: 618 mSDtfsCounter, 0 mSDsluCounter, 614 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 26.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.37ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 29.80ms IncrementalHoareTripleChecker+Time [2021-11-05 12:11:21,249 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 1232 Invalid, 5 Unknown, 0 Unchecked, 7.37ms Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 29.80ms Time] [2021-11-05 12:11:21,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2021-11-05 12:11:21,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 495. [2021-11-05 12:11:21,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 475 states have (on average 1.305263157894737) internal successors, (620), 494 states have internal predecessors, (620), 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) [2021-11-05 12:11:21,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 620 transitions. [2021-11-05 12:11:21,268 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 620 transitions. Word has length 58 [2021-11-05 12:11:21,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:11:21,268 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 620 transitions. [2021-11-05 12:11:21,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.333333333333332) internal successors, (58), 3 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) [2021-11-05 12:11:21,269 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 620 transitions. [2021-11-05 12:11:21,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-11-05 12:11:21,271 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:11:21,271 INFO L514 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] [2021-11-05 12:11:21,323 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-05 12:11:21,484 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 12:11:21,484 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:11:21,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:11:21,485 INFO L85 PathProgramCache]: Analyzing trace with hash -298642907, now seen corresponding path program 1 times [2021-11-05 12:11:21,488 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 12:11:21,488 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1258777906] [2021-11-05 12:11:21,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:11:21,488 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 12:11:21,488 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 12:11:21,489 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 12:11:21,490 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-05 12:11:23,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:11:23,780 INFO L263 TraceCheckSpWp]: Trace formula consists of 1495 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-05 12:11:23,783 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:11:24,108 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:11:24,108 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 12:11:24,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:11:24,384 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 12:11:24,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1258777906] [2021-11-05 12:11:24,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1258777906] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 12:11:24,384 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:11:24,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-11-05 12:11:24,384 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172290072] [2021-11-05 12:11:24,384 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 12:11:24,384 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-05 12:11:24,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 12:11:24,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-05 12:11:24,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-05 12:11:24,385 INFO L87 Difference]: Start difference. First operand 495 states and 620 transitions. Second operand has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 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) [2021-11-05 12:11:25,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:11:25,470 INFO L93 Difference]: Finished difference Result 958 states and 1200 transitions. [2021-11-05 12:11:25,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-05 12:11:25,472 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 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 [2021-11-05 12:11:25,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:11:25,473 INFO L225 Difference]: With dead ends: 958 [2021-11-05 12:11:25,473 INFO L226 Difference]: Without dead ends: 495 [2021-11-05 12:11:25,475 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.31ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:11:25,475 INFO L933 BasicCegarLoop]: 580 mSDtfsCounter, 708 mSDsluCounter, 384 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 851.04ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 708 SdHoareTripleChecker+Valid, 964 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.46ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1012.23ms IncrementalHoareTripleChecker+Time [2021-11-05 12:11:25,476 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [708 Valid, 964 Invalid, 166 Unknown, 0 Unchecked, 8.46ms Time], IncrementalHoareTripleChecker [8 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 1012.23ms Time] [2021-11-05 12:11:25,477 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2021-11-05 12:11:25,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 495. [2021-11-05 12:11:25,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 475 states have (on average 1.2968421052631578) internal successors, (616), 494 states have internal predecessors, (616), 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) [2021-11-05 12:11:25,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 616 transitions. [2021-11-05 12:11:25,487 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 616 transitions. Word has length 58 [2021-11-05 12:11:25,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:11:25,487 INFO L470 AbstractCegarLoop]: Abstraction has 495 states and 616 transitions. [2021-11-05 12:11:25,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.5) internal successors, (58), 4 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) [2021-11-05 12:11:25,487 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 616 transitions. [2021-11-05 12:11:25,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2021-11-05 12:11:25,489 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:11:25,489 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:11:25,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-05 12:11:25,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 12:11:25,712 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:11:25,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:11:25,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1163509497, now seen corresponding path program 1 times [2021-11-05 12:11:25,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 12:11:25,721 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1803158464] [2021-11-05 12:11:25,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:11:25,721 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 12:11:25,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 12:11:25,722 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 12:11:25,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-05 12:11:28,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:11:28,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 1654 conjuncts, 16 conjunts are in the unsatisfiable core [2021-11-05 12:11:28,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:11:29,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:11:29,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 12:11:31,916 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-05 12:11:31,917 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 43 [2021-11-05 12:11:31,971 INFO L354 Elim1Store]: treesize reduction 8, result has 46.7 percent of original size [2021-11-05 12:11:31,971 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 34 [2021-11-05 12:11:32,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:11:32,153 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 12:11:32,153 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1803158464] [2021-11-05 12:11:32,153 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1803158464] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 12:11:32,153 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:11:32,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 7] imperfect sequences [] total 12 [2021-11-05 12:11:32,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135512714] [2021-11-05 12:11:32,154 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 12:11:32,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-05 12:11:32,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 12:11:32,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-05 12:11:32,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2021-11-05 12:11:32,155 INFO L87 Difference]: Start difference. First operand 495 states and 616 transitions. Second operand has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 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) [2021-11-05 12:11:34,347 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.19s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:11:36,355 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, RoundingMode, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-05 12:11:54,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:11:54,158 INFO L93 Difference]: Finished difference Result 1511 states and 1894 transitions. [2021-11-05 12:11:54,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-05 12:11:54,159 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 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 82 [2021-11-05 12:11:54,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:11:54,162 INFO L225 Difference]: With dead ends: 1511 [2021-11-05 12:11:54,162 INFO L226 Difference]: Without dead ends: 1046 [2021-11-05 12:11:54,163 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 152 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 2244.44ms TimeCoverageRelationStatistics Valid=192, Invalid=408, Unknown=0, NotChecked=0, Total=600 [2021-11-05 12:11:54,163 INFO L933 BasicCegarLoop]: 972 mSDtfsCounter, 2301 mSDsluCounter, 3993 mSDsCounter, 0 mSdLazyCounter, 2128 mSolverCounterSat, 208 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 18327.30ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2301 SdHoareTripleChecker+Valid, 4965 SdHoareTripleChecker+Invalid, 2338 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 40.52ms SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 2128 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 20099.90ms IncrementalHoareTripleChecker+Time [2021-11-05 12:11:54,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2301 Valid, 4965 Invalid, 2338 Unknown, 0 Unchecked, 40.52ms Time], IncrementalHoareTripleChecker [208 Valid, 2128 Invalid, 2 Unknown, 0 Unchecked, 20099.90ms Time] [2021-11-05 12:11:54,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1046 states. [2021-11-05 12:11:54,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1046 to 898. [2021-11-05 12:11:54,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 878 states have (on average 1.317767653758542) internal successors, (1157), 897 states have internal predecessors, (1157), 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) [2021-11-05 12:11:54,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1157 transitions. [2021-11-05 12:11:54,196 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1157 transitions. Word has length 82 [2021-11-05 12:11:54,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:11:54,196 INFO L470 AbstractCegarLoop]: Abstraction has 898 states and 1157 transitions. [2021-11-05 12:11:54,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 8.666666666666666) internal successors, (104), 12 states have internal predecessors, (104), 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) [2021-11-05 12:11:54,197 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1157 transitions. [2021-11-05 12:11:54,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-11-05 12:11:54,199 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:11:54,199 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:11:54,244 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Ended with exit code 0 [2021-11-05 12:11:54,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 12:11:54,404 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:11:54,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:11:54,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1329794317, now seen corresponding path program 1 times [2021-11-05 12:11:54,407 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 12:11:54,407 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [146134367] [2021-11-05 12:11:54,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:11:54,407 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 12:11:54,407 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 12:11:54,409 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 12:11:54,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-05 12:11:56,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:11:57,112 INFO L263 TraceCheckSpWp]: Trace formula consists of 1658 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-05 12:11:57,115 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:11:57,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:11:57,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 12:11:58,127 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:11:58,127 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 12:11:58,128 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [146134367] [2021-11-05 12:11:58,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [146134367] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 12:11:58,128 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:11:58,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-05 12:11:58,128 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [518254532] [2021-11-05 12:11:58,128 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 12:11:58,128 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 12:11:58,128 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 12:11:58,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 12:11:58,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:11:58,129 INFO L87 Difference]: Start difference. First operand 898 states and 1157 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 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) [2021-11-05 12:11:58,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:11:58,992 INFO L93 Difference]: Finished difference Result 2168 states and 2795 transitions. [2021-11-05 12:11:58,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-05 12:11:58,993 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 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 84 [2021-11-05 12:11:58,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:11:58,996 INFO L225 Difference]: With dead ends: 2168 [2021-11-05 12:11:58,996 INFO L226 Difference]: Without dead ends: 1306 [2021-11-05 12:11:58,998 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 161 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 354.80ms TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2021-11-05 12:11:58,998 INFO L933 BasicCegarLoop]: 836 mSDtfsCounter, 325 mSDsluCounter, 3873 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 537.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 325 SdHoareTripleChecker+Valid, 4709 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.23ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 611.06ms IncrementalHoareTripleChecker+Time [2021-11-05 12:11:58,999 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [325 Valid, 4709 Invalid, 121 Unknown, 0 Unchecked, 4.23ms Time], IncrementalHoareTripleChecker [4 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 611.06ms Time] [2021-11-05 12:11:59,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1306 states. [2021-11-05 12:11:59,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1306 to 898. [2021-11-05 12:11:59,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 878 states have (on average 1.3143507972665147) internal successors, (1154), 897 states have internal predecessors, (1154), 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) [2021-11-05 12:11:59,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1154 transitions. [2021-11-05 12:11:59,022 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1154 transitions. Word has length 84 [2021-11-05 12:11:59,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:11:59,023 INFO L470 AbstractCegarLoop]: Abstraction has 898 states and 1154 transitions. [2021-11-05 12:11:59,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 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) [2021-11-05 12:11:59,023 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1154 transitions. [2021-11-05 12:11:59,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-05 12:11:59,025 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:11:59,025 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:11:59,074 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-05 12:11:59,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 12:11:59,251 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:11:59,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:11:59,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1262356948, now seen corresponding path program 1 times [2021-11-05 12:11:59,254 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 12:11:59,254 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [95707627] [2021-11-05 12:11:59,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:11:59,255 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 12:11:59,255 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 12:11:59,256 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 12:11:59,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-05 12:12:01,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:12:01,999 INFO L263 TraceCheckSpWp]: Trace formula consists of 1673 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-05 12:12:02,003 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:12:02,515 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:12:02,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 12:12:02,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:12:02,900 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 12:12:02,900 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [95707627] [2021-11-05 12:12:02,900 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [95707627] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 12:12:02,900 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:12:02,900 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 8 [2021-11-05 12:12:02,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146087955] [2021-11-05 12:12:02,900 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 12:12:02,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-11-05 12:12:02,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 12:12:02,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-11-05 12:12:02,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2021-11-05 12:12:02,902 INFO L87 Difference]: Start difference. First operand 898 states and 1154 transitions. Second operand has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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) [2021-11-05 12:12:03,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:12:03,793 INFO L93 Difference]: Finished difference Result 2112 states and 2722 transitions. [2021-11-05 12:12:03,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-05 12:12:03,808 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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 87 [2021-11-05 12:12:03,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:12:03,812 INFO L225 Difference]: With dead ends: 2112 [2021-11-05 12:12:03,812 INFO L226 Difference]: Without dead ends: 1329 [2021-11-05 12:12:03,814 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 506.01ms TimeCoverageRelationStatistics Valid=68, Invalid=172, Unknown=0, NotChecked=0, Total=240 [2021-11-05 12:12:03,815 INFO L933 BasicCegarLoop]: 674 mSDtfsCounter, 2890 mSDsluCounter, 1905 mSDsCounter, 0 mSdLazyCounter, 66 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 451.58ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2890 SdHoareTripleChecker+Valid, 2579 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.83ms SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 66 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 492.94ms IncrementalHoareTripleChecker+Time [2021-11-05 12:12:03,815 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2890 Valid, 2579 Invalid, 76 Unknown, 0 Unchecked, 3.83ms Time], IncrementalHoareTripleChecker [10 Valid, 66 Invalid, 0 Unknown, 0 Unchecked, 492.94ms Time] [2021-11-05 12:12:03,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1329 states. [2021-11-05 12:12:03,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1329 to 898. [2021-11-05 12:12:03,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 878 states have (on average 1.3120728929384966) internal successors, (1152), 897 states have internal predecessors, (1152), 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) [2021-11-05 12:12:03,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1152 transitions. [2021-11-05 12:12:03,843 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1152 transitions. Word has length 87 [2021-11-05 12:12:03,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:12:03,844 INFO L470 AbstractCegarLoop]: Abstraction has 898 states and 1152 transitions. [2021-11-05 12:12:03,844 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.875) internal successors, (87), 8 states have internal predecessors, (87), 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) [2021-11-05 12:12:03,844 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1152 transitions. [2021-11-05 12:12:03,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2021-11-05 12:12:03,848 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:12:03,848 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:12:03,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-05 12:12:04,059 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 12:12:04,060 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:12:04,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:12:04,060 INFO L85 PathProgramCache]: Analyzing trace with hash -1685058774, now seen corresponding path program 1 times [2021-11-05 12:12:04,063 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 12:12:04,063 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [979856481] [2021-11-05 12:12:04,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:12:04,063 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 12:12:04,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 12:12:04,064 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 12:12:04,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-05 12:12:06,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:12:06,810 INFO L263 TraceCheckSpWp]: Trace formula consists of 1675 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-05 12:12:06,813 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:12:07,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:12:07,574 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 12:12:08,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:12:08,241 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 12:12:08,241 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [979856481] [2021-11-05 12:12:08,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [979856481] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 12:12:08,241 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:12:08,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-05 12:12:08,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077462051] [2021-11-05 12:12:08,242 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 12:12:08,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 12:12:08,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 12:12:08,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 12:12:08,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:12:08,242 INFO L87 Difference]: Start difference. First operand 898 states and 1152 transitions. Second operand has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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) [2021-11-05 12:12:09,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:12:09,690 INFO L93 Difference]: Finished difference Result 1647 states and 2125 transitions. [2021-11-05 12:12:09,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-05 12:12:09,692 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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 87 [2021-11-05 12:12:09,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:12:09,694 INFO L225 Difference]: With dead ends: 1647 [2021-11-05 12:12:09,695 INFO L226 Difference]: Without dead ends: 898 [2021-11-05 12:12:09,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 163.47ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-11-05 12:12:09,697 INFO L933 BasicCegarLoop]: 539 mSDtfsCounter, 1286 mSDsluCounter, 342 mSDsCounter, 0 mSdLazyCounter, 180 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1104.50ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1286 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.44ms SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 180 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1297.21ms IncrementalHoareTripleChecker+Time [2021-11-05 12:12:09,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1286 Valid, 881 Invalid, 195 Unknown, 0 Unchecked, 4.44ms Time], IncrementalHoareTripleChecker [15 Valid, 180 Invalid, 0 Unknown, 0 Unchecked, 1297.21ms Time] [2021-11-05 12:12:09,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2021-11-05 12:12:09,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 898. [2021-11-05 12:12:09,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 878 states have (on average 1.3029612756264237) internal successors, (1144), 897 states have internal predecessors, (1144), 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) [2021-11-05 12:12:09,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1144 transitions. [2021-11-05 12:12:09,727 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1144 transitions. Word has length 87 [2021-11-05 12:12:09,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:12:09,727 INFO L470 AbstractCegarLoop]: Abstraction has 898 states and 1144 transitions. [2021-11-05 12:12:09,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.4) internal successors, (87), 5 states have internal predecessors, (87), 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) [2021-11-05 12:12:09,727 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1144 transitions. [2021-11-05 12:12:09,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2021-11-05 12:12:09,728 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:12:09,728 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:12:09,778 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-05 12:12:09,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 12:12:09,944 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:12:09,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:12:09,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1591332294, now seen corresponding path program 1 times [2021-11-05 12:12:09,948 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 12:12:09,948 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [831442292] [2021-11-05 12:12:09,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:12:09,949 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 12:12:09,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 12:12:09,950 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 12:12:09,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-05 12:12:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:12:12,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 1728 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-05 12:12:12,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:12:13,523 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:12:13,523 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 12:12:14,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:12:14,089 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 12:12:14,091 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [831442292] [2021-11-05 12:12:14,091 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [831442292] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 12:12:14,091 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:12:14,092 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 6 [2021-11-05 12:12:14,092 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [182277386] [2021-11-05 12:12:14,092 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 12:12:14,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-05 12:12:14,092 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 12:12:14,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-05 12:12:14,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-05 12:12:14,093 INFO L87 Difference]: Start difference. First operand 898 states and 1144 transitions. Second operand has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 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) [2021-11-05 12:12:15,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:12:15,801 INFO L93 Difference]: Finished difference Result 1613 states and 2066 transitions. [2021-11-05 12:12:15,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-05 12:12:15,802 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 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 95 [2021-11-05 12:12:15,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:12:15,804 INFO L225 Difference]: With dead ends: 1613 [2021-11-05 12:12:15,804 INFO L226 Difference]: Without dead ends: 898 [2021-11-05 12:12:15,805 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 184 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 208.38ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-11-05 12:12:15,806 INFO L933 BasicCegarLoop]: 482 mSDtfsCounter, 1917 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1291.49ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1917 SdHoareTripleChecker+Valid, 766 SdHoareTripleChecker+Invalid, 246 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.33ms SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1514.74ms IncrementalHoareTripleChecker+Time [2021-11-05 12:12:15,806 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1917 Valid, 766 Invalid, 246 Unknown, 0 Unchecked, 4.33ms Time], IncrementalHoareTripleChecker [30 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 1514.74ms Time] [2021-11-05 12:12:15,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 898 states. [2021-11-05 12:12:15,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 898 to 898. [2021-11-05 12:12:15,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 898 states, 878 states have (on average 1.2892938496583144) internal successors, (1132), 897 states have internal predecessors, (1132), 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) [2021-11-05 12:12:15,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 1132 transitions. [2021-11-05 12:12:15,840 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 1132 transitions. Word has length 95 [2021-11-05 12:12:15,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:12:15,841 INFO L470 AbstractCegarLoop]: Abstraction has 898 states and 1132 transitions. [2021-11-05 12:12:15,842 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.833333333333334) internal successors, (95), 6 states have internal predecessors, (95), 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) [2021-11-05 12:12:15,842 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 1132 transitions. [2021-11-05 12:12:15,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2021-11-05 12:12:15,842 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:12:15,843 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:12:15,896 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-05 12:12:16,062 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 12:12:16,062 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:12:16,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:12:16,063 INFO L85 PathProgramCache]: Analyzing trace with hash 475886434, now seen corresponding path program 1 times [2021-11-05 12:12:16,065 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 12:12:16,066 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [897179339] [2021-11-05 12:12:16,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:12:16,066 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 12:12:16,066 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 12:12:16,080 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 12:12:16,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-05 12:12:18,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:12:19,174 INFO L263 TraceCheckSpWp]: Trace formula consists of 1781 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-05 12:12:19,176 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:12:19,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:12:19,348 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 12:12:19,501 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:12:19,501 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 12:12:19,502 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [897179339] [2021-11-05 12:12:19,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [897179339] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 12:12:19,502 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:12:19,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-11-05 12:12:19,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339172728] [2021-11-05 12:12:19,502 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 12:12:19,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-05 12:12:19,503 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 12:12:19,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-05 12:12:19,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-05 12:12:19,504 INFO L87 Difference]: Start difference. First operand 898 states and 1132 transitions. Second operand has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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) [2021-11-05 12:12:19,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:12:19,795 INFO L93 Difference]: Finished difference Result 2103 states and 2660 transitions. [2021-11-05 12:12:19,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-05 12:12:19,795 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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 103 [2021-11-05 12:12:19,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:12:19,800 INFO L225 Difference]: With dead ends: 2103 [2021-11-05 12:12:19,800 INFO L226 Difference]: Without dead ends: 1506 [2021-11-05 12:12:19,801 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 98.97ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:12:19,803 INFO L933 BasicCegarLoop]: 934 mSDtfsCounter, 838 mSDsluCounter, 2120 mSDsCounter, 0 mSdLazyCounter, 26 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 143.62ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 838 SdHoareTripleChecker+Valid, 3054 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.85ms SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 26 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 176.27ms IncrementalHoareTripleChecker+Time [2021-11-05 12:12:19,804 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [838 Valid, 3054 Invalid, 30 Unknown, 0 Unchecked, 1.85ms Time], IncrementalHoareTripleChecker [4 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 176.27ms Time] [2021-11-05 12:12:19,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1506 states. [2021-11-05 12:12:19,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1506 to 901. [2021-11-05 12:12:19,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 881 states have (on average 1.2883087400681044) internal successors, (1135), 900 states have internal predecessors, (1135), 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) [2021-11-05 12:12:19,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1135 transitions. [2021-11-05 12:12:19,835 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1135 transitions. Word has length 103 [2021-11-05 12:12:19,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:12:19,836 INFO L470 AbstractCegarLoop]: Abstraction has 901 states and 1135 transitions. [2021-11-05 12:12:19,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.6) internal successors, (103), 5 states have internal predecessors, (103), 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) [2021-11-05 12:12:19,836 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1135 transitions. [2021-11-05 12:12:19,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-11-05 12:12:19,837 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:12:19,837 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:12:19,896 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2021-11-05 12:12:20,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 12:12:20,047 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:12:20,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:12:20,048 INFO L85 PathProgramCache]: Analyzing trace with hash -1022999834, now seen corresponding path program 1 times [2021-11-05 12:12:20,051 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 12:12:20,052 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2139141838] [2021-11-05 12:12:20,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:12:20,052 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 12:12:20,052 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 12:12:20,053 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 12:12:20,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2021-11-05 12:12:22,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-05 12:12:23,083 INFO L263 TraceCheckSpWp]: Trace formula consists of 1784 conjuncts, 10 conjunts are in the unsatisfiable core [2021-11-05 12:12:23,087 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-05 12:12:23,885 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:12:23,885 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-05 12:12:24,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-05 12:12:24,589 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-11-05 12:12:24,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2139141838] [2021-11-05 12:12:24,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2139141838] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-05 12:12:24,590 INFO L186 FreeRefinementEngine]: Found 2 perfect and 0 imperfect interpolant sequences. [2021-11-05 12:12:24,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 7 [2021-11-05 12:12:24,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396212814] [2021-11-05 12:12:24,590 INFO L85 oduleStraightlineAll]: Using 2 perfect interpolants to construct interpolant automaton [2021-11-05 12:12:24,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-05 12:12:24,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-11-05 12:12:24,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-05 12:12:24,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-05 12:12:24,591 INFO L87 Difference]: Start difference. First operand 901 states and 1135 transitions. Second operand has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 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) [2021-11-05 12:12:26,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-05 12:12:26,420 INFO L93 Difference]: Finished difference Result 1498 states and 1888 transitions. [2021-11-05 12:12:26,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-05 12:12:26,426 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 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 105 [2021-11-05 12:12:26,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-05 12:12:26,428 INFO L225 Difference]: With dead ends: 1498 [2021-11-05 12:12:26,428 INFO L226 Difference]: Without dead ends: 901 [2021-11-05 12:12:26,431 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 213 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 327.75ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-11-05 12:12:26,432 INFO L933 BasicCegarLoop]: 457 mSDtfsCounter, 2443 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 239 mSolverCounterSat, 64 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1326.78ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2443 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.03ms SdHoareTripleChecker+Time, 64 IncrementalHoareTripleChecker+Valid, 239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1550.14ms IncrementalHoareTripleChecker+Time [2021-11-05 12:12:26,432 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2443 Valid, 744 Invalid, 303 Unknown, 0 Unchecked, 5.03ms Time], IncrementalHoareTripleChecker [64 Valid, 239 Invalid, 0 Unknown, 0 Unchecked, 1550.14ms Time] [2021-11-05 12:12:26,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 901 states. [2021-11-05 12:12:26,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 901 to 901. [2021-11-05 12:12:26,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 901 states, 881 states have (on average 1.2814982973893303) internal successors, (1129), 900 states have internal predecessors, (1129), 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) [2021-11-05 12:12:26,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 901 states to 901 states and 1129 transitions. [2021-11-05 12:12:26,464 INFO L78 Accepts]: Start accepts. Automaton has 901 states and 1129 transitions. Word has length 105 [2021-11-05 12:12:26,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-05 12:12:26,464 INFO L470 AbstractCegarLoop]: Abstraction has 901 states and 1129 transitions. [2021-11-05 12:12:26,464 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 15.0) internal successors, (105), 7 states have internal predecessors, (105), 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) [2021-11-05 12:12:26,464 INFO L276 IsEmpty]: Start isEmpty. Operand 901 states and 1129 transitions. [2021-11-05 12:12:26,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2021-11-05 12:12:26,465 INFO L506 BasicCegarLoop]: Found error trace [2021-11-05 12:12:26,465 INFO L514 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-05 12:12:26,525 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2021-11-05 12:12:26,679 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-11-05 12:12:26,680 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 17 more)] === [2021-11-05 12:12:26,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-05 12:12:26,680 INFO L85 PathProgramCache]: Analyzing trace with hash 309133258, now seen corresponding path program 1 times [2021-11-05 12:12:26,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-11-05 12:12:26,683 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2100637556] [2021-11-05 12:12:26,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-05 12:12:26,683 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-05 12:12:26,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-11-05 12:12:26,684 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-05 12:12:26,685 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process Killed by 15