./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_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 23ef598a219073b4e1ea2c3302ab5b9fcd0bd41db1d8d7141c8967f07530c02d --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 11:28:43,005 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 11:28:43,008 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 11:28:43,079 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 11:28:43,095 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 11:28:43,099 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 11:28:43,100 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 11:28:43,105 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 11:28:43,106 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 11:28:43,111 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 11:28:43,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 11:28:43,112 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 11:28:43,112 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 11:28:43,114 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 11:28:43,115 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 11:28:43,119 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 11:28:43,119 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 11:28:43,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 11:28:43,123 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 11:28:43,126 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 11:28:43,127 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 11:28:43,128 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 11:28:43,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 11:28:43,144 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 11:28:43,146 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 11:28:43,147 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 11:28:43,147 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 11:28:43,148 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 11:28:43,148 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 11:28:43,149 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 11:28:43,149 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 11:28:43,150 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 11:28:43,151 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 11:28:43,152 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 11:28:43,153 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 11:28:43,153 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 11:28:43,154 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 11:28:43,154 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 11:28:43,154 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 11:28:43,155 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 11:28:43,155 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 11:28:43,157 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 11:28:43,186 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 11:28:43,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 11:28:43,186 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 11:28:43,187 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 11:28:43,187 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 11:28:43,188 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 11:28:43,188 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 11:28:43,188 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 11:28:43,188 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 11:28:43,188 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 11:28:43,188 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 11:28:43,189 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 11:28:43,189 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 11:28:43,189 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 11:28:43,189 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 11:28:43,189 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 11:28:43,189 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 11:28:43,189 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 11:28:43,190 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 11:28:43,190 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 11:28:43,190 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 11:28:43,190 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 11:28:43,190 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 11:28:43,190 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 11:28:43,191 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 11:28:43,191 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 11:28:43,191 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 11:28:43,191 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 11:28:43,191 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 11:28:43,191 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23ef598a219073b4e1ea2c3302ab5b9fcd0bd41db1d8d7141c8967f07530c02d [2021-11-06 11:28:43,384 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 11:28:43,398 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 11:28:43,400 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 11:28:43,401 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 11:28:43,401 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 11:28:43,402 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2021-11-06 11:28:43,450 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc6ca3e0e/57102f4c272d42f99a131c2af3a7d807/FLAG624ceee93 [2021-11-06 11:28:44,010 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 11:28:44,014 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_init_static_harness.i [2021-11-06 11:28:44,046 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc6ca3e0e/57102f4c272d42f99a131c2af3a7d807/FLAG624ceee93 [2021-11-06 11:28:44,193 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dc6ca3e0e/57102f4c272d42f99a131c2af3a7d807 [2021-11-06 11:28:44,194 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 11:28:44,195 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 11:28:44,196 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 11:28:44,196 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 11:28:44,199 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 11:28:44,199 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:28:44" (1/1) ... [2021-11-06 11:28:44,200 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@153b90d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:44, skipping insertion in model container [2021-11-06 11:28:44,200 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:28:44" (1/1) ... [2021-11-06 11:28:44,204 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 11:28:44,257 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 11:28:44,457 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_priority_queue_init_static_harness.i[4504,4517] [2021-11-06 11:28:44,464 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_priority_queue_init_static_harness.i[4564,4577] [2021-11-06 11:28:44,475 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-06 11:28:44,480 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-06 11:28:44,878 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-06 11:28:44,916 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:44,917 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:44,917 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:44,917 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:44,920 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:44,928 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:44,929 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:44,930 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:44,930 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:45,095 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-06 11:28:45,096 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-06 11:28:45,097 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-06 11:28:45,106 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-06 11:28:45,108 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-06 11:28:45,109 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-06 11:28:45,109 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-06 11:28:45,110 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-06 11:28:45,111 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-06 11:28:45,111 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-06 11:28:45,216 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:45,216 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:45,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 11:28:45,259 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 11:28:45,267 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_priority_queue_init_static_harness.i[4504,4517] [2021-11-06 11:28:45,268 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_priority_queue_init_static_harness.i[4564,4577] [2021-11-06 11:28:45,269 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-06 11:28:45,270 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-06 11:28:45,296 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-06 11:28:45,304 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:45,305 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:45,305 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:45,306 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:45,306 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:45,310 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:45,310 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:45,311 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:45,311 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:45,330 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-06 11:28:45,330 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-06 11:28:45,331 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-06 11:28:45,377 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-06 11:28:45,378 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-06 11:28:45,378 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-06 11:28:45,379 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-06 11:28:45,379 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-06 11:28:45,379 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-06 11:28:45,379 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-06 11:28:45,430 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:45,431 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:28:45,481 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 11:28:45,623 INFO L208 MainTranslator]: Completed translation [2021-11-06 11:28:45,623 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:45 WrapperNode [2021-11-06 11:28:45,623 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 11:28:45,624 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 11:28:45,624 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 11:28:45,625 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 11:28:45,629 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:45" (1/1) ... [2021-11-06 11:28:45,676 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:45" (1/1) ... [2021-11-06 11:28:45,726 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 11:28:45,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 11:28:45,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 11:28:45,727 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 11:28:45,738 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:45" (1/1) ... [2021-11-06 11:28:45,738 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:45" (1/1) ... [2021-11-06 11:28:45,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:45" (1/1) ... [2021-11-06 11:28:45,745 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:45" (1/1) ... [2021-11-06 11:28:45,772 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:45" (1/1) ... [2021-11-06 11:28:45,778 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:45" (1/1) ... [2021-11-06 11:28:45,784 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:45" (1/1) ... [2021-11-06 11:28:45,794 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 11:28:45,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 11:28:45,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 11:28:45,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 11:28:45,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:45" (1/1) ... [2021-11-06 11:28:45,801 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 11:28:45,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:28:45,820 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 11:28:45,834 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-06 11:28:45,855 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 11:28:45,855 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 11:28:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 11:28:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 11:28:45,856 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 11:28:45,856 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 11:28:45,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 11:28:45,857 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-06 11:28:45,857 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 11:28:45,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 11:28:45,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 11:28:45,858 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 11:28:52,824 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 11:28:52,825 INFO L299 CfgBuilder]: Removed 165 assume(true) statements. [2021-11-06 11:28:52,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:28:52 BoogieIcfgContainer [2021-11-06 11:28:52,826 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 11:28:52,832 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 11:28:52,832 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 11:28:52,834 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 11:28:52,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:28:44" (1/3) ... [2021-11-06 11:28:52,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e0fd3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:28:52, skipping insertion in model container [2021-11-06 11:28:52,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:28:45" (2/3) ... [2021-11-06 11:28:52,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73e0fd3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:28:52, skipping insertion in model container [2021-11-06 11:28:52,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:28:52" (3/3) ... [2021-11-06 11:28:52,836 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_init_static_harness.i [2021-11-06 11:28:52,839 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 11:28:52,840 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2021-11-06 11:28:52,877 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 11:28:52,885 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-06 11:28:52,886 INFO L340 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2021-11-06 11:28:52,900 INFO L276 IsEmpty]: Start isEmpty. Operand has 205 states, 195 states have (on average 1.441025641025641) internal successors, (281), 204 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:28:52,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2021-11-06 11:28:52,906 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:28:52,906 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:28:52,907 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-06 11:28:52,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:28:52,911 INFO L85 PathProgramCache]: Analyzing trace with hash -1473699063, now seen corresponding path program 1 times [2021-11-06 11:28:52,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:28:52,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303756413] [2021-11-06 11:28:52,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:52,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:28:53,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:28:53,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:28:53,429 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:28:53,429 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303756413] [2021-11-06 11:28:53,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303756413] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:28:53,430 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:28:53,430 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 11:28:53,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229072301] [2021-11-06 11:28:53,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 11:28:53,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:28:53,444 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 11:28:53,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 11:28:53,447 INFO L87 Difference]: Start difference. First operand has 205 states, 195 states have (on average 1.441025641025641) internal successors, (281), 204 states have internal predecessors, (281), 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 21.5) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:28:53,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:28:53,487 INFO L93 Difference]: Finished difference Result 407 states and 558 transitions. [2021-11-06 11:28:53,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 11:28:53,489 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 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 43 [2021-11-06 11:28:53,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:28:53,498 INFO L225 Difference]: With dead ends: 407 [2021-11-06 11:28:53,498 INFO L226 Difference]: Without dead ends: 199 [2021-11-06 11:28:53,501 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 11:28:53,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2021-11-06 11:28:53,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 199. [2021-11-06 11:28:53,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 190 states have (on average 1.2894736842105263) internal successors, (245), 198 states have internal predecessors, (245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:28:53,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 245 transitions. [2021-11-06 11:28:53,536 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 245 transitions. Word has length 43 [2021-11-06 11:28:53,536 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:28:53,536 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 245 transitions. [2021-11-06 11:28:53,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.5) internal successors, (43), 2 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:28:53,537 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 245 transitions. [2021-11-06 11:28:53,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2021-11-06 11:28:53,541 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:28:53,541 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:28:53,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 11:28:53,541 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-06 11:28:53,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:28:53,542 INFO L85 PathProgramCache]: Analyzing trace with hash 1036054349, now seen corresponding path program 1 times [2021-11-06 11:28:53,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:28:53,543 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496214924] [2021-11-06 11:28:53,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:53,543 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:28:53,606 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:28:53,606 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [802879807] [2021-11-06 11:28:53,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:53,607 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:28:53,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:28:53,626 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 11:28:53,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-06 11:28:54,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:28:54,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 2463 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-06 11:28:54,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:28:54,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:28:54,955 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:28:54,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496214924] [2021-11-06 11:28:54,955 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:28:54,955 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [802879807] [2021-11-06 11:28:54,955 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [802879807] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:28:54,955 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:28:54,955 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 11:28:54,956 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697220420] [2021-11-06 11:28:54,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-06 11:28:54,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:28:54,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-06 11:28:54,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-06 11:28:54,957 INFO L87 Difference]: Start difference. First operand 199 states and 245 transitions. Second operand has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:28:55,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:28:55,411 INFO L93 Difference]: Finished difference Result 372 states and 455 transitions. [2021-11-06 11:28:55,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 11:28:55,412 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 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 49 [2021-11-06 11:28:55,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:28:55,413 INFO L225 Difference]: With dead ends: 372 [2021-11-06 11:28:55,413 INFO L226 Difference]: Without dead ends: 237 [2021-11-06 11:28:55,414 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-11-06 11:28:55,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2021-11-06 11:28:55,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 199. [2021-11-06 11:28:55,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 190 states have (on average 1.2842105263157895) internal successors, (244), 198 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:28:55,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 244 transitions. [2021-11-06 11:28:55,422 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 244 transitions. Word has length 49 [2021-11-06 11:28:55,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:28:55,423 INFO L470 AbstractCegarLoop]: Abstraction has 199 states and 244 transitions. [2021-11-06 11:28:55,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.0) internal successors, (49), 6 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:28:55,423 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 244 transitions. [2021-11-06 11:28:55,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-06 11:28:55,445 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:28:55,445 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:28:55,482 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-06 11:28:55,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:28:55,667 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-06 11:28:55,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:28:55,667 INFO L85 PathProgramCache]: Analyzing trace with hash 802072627, now seen corresponding path program 1 times [2021-11-06 11:28:55,667 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:28:55,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [172373424] [2021-11-06 11:28:55,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:55,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:28:55,728 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:28:55,728 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1560544072] [2021-11-06 11:28:55,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:55,728 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:28:55,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:28:55,729 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 11:28:55,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-06 11:28:56,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:28:56,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 2553 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-06 11:28:56,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:28:56,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:28:56,506 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:28:56,506 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [172373424] [2021-11-06 11:28:56,507 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:28:56,507 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1560544072] [2021-11-06 11:28:56,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1560544072] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:28:56,507 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:28:56,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 11:28:56,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451189755] [2021-11-06 11:28:56,507 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 11:28:56,507 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:28:56,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 11:28:56,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 11:28:56,508 INFO L87 Difference]: Start difference. First operand 199 states and 244 transitions. Second operand has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:28:56,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:28:56,792 INFO L93 Difference]: Finished difference Result 360 states and 452 transitions. [2021-11-06 11:28:56,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 11:28:56,792 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 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 57 [2021-11-06 11:28:56,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:28:56,794 INFO L225 Difference]: With dead ends: 360 [2021-11-06 11:28:56,794 INFO L226 Difference]: Without dead ends: 224 [2021-11-06 11:28:56,794 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 11:28:56,795 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2021-11-06 11:28:56,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 209. [2021-11-06 11:28:56,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 200 states have (on average 1.27) internal successors, (254), 208 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:28:56,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 254 transitions. [2021-11-06 11:28:56,813 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 254 transitions. Word has length 57 [2021-11-06 11:28:56,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:28:56,814 INFO L470 AbstractCegarLoop]: Abstraction has 209 states and 254 transitions. [2021-11-06 11:28:56,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.25) internal successors, (57), 4 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:28:56,814 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 254 transitions. [2021-11-06 11:28:56,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2021-11-06 11:28:56,815 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:28:56,815 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:28:56,838 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-06 11:28:57,031 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-06 11:28:57,032 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-06 11:28:57,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:28:57,032 INFO L85 PathProgramCache]: Analyzing trace with hash -972934735, now seen corresponding path program 1 times [2021-11-06 11:28:57,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:28:57,032 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896095891] [2021-11-06 11:28:57,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:57,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:28:57,088 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:28:57,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [884118623] [2021-11-06 11:28:57,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:57,089 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:28:57,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:28:57,090 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 11:28:57,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-06 11:28:57,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:28:57,761 INFO L263 TraceCheckSpWp]: Trace formula consists of 2558 conjuncts, 46 conjunts are in the unsatisfiable core [2021-11-06 11:28:57,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:28:58,428 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 16 treesize of output 12 [2021-11-06 11:28:58,677 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 [2021-11-06 11:28:58,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:28:58,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:28:58,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896095891] [2021-11-06 11:28:58,825 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:28:58,825 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884118623] [2021-11-06 11:28:58,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884118623] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:28:58,825 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:28:58,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-06 11:28:58,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712242767] [2021-11-06 11:28:58,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-06 11:28:58,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:28:58,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-06 11:28:58,826 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2021-11-06 11:28:58,826 INFO L87 Difference]: Start difference. First operand 209 states and 254 transitions. Second operand has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:29:04,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:29:04,460 INFO L93 Difference]: Finished difference Result 403 states and 489 transitions. [2021-11-06 11:29:04,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-11-06 11:29:04,461 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 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 57 [2021-11-06 11:29:04,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:29:04,462 INFO L225 Difference]: With dead ends: 403 [2021-11-06 11:29:04,463 INFO L226 Difference]: Without dead ends: 259 [2021-11-06 11:29:04,463 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=113, Invalid=229, Unknown=0, NotChecked=0, Total=342 [2021-11-06 11:29:04,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2021-11-06 11:29:04,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 207. [2021-11-06 11:29:04,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 198 states have (on average 1.2676767676767677) internal successors, (251), 206 states have internal predecessors, (251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:29:04,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 251 transitions. [2021-11-06 11:29:04,470 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 251 transitions. Word has length 57 [2021-11-06 11:29:04,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:29:04,470 INFO L470 AbstractCegarLoop]: Abstraction has 207 states and 251 transitions. [2021-11-06 11:29:04,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.7) internal successors, (57), 10 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:29:04,471 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 251 transitions. [2021-11-06 11:29:04,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-06 11:29:04,471 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:29:04,471 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:29:04,494 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-06 11:29:04,691 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:29:04,691 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-06 11:29:04,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:29:04,692 INFO L85 PathProgramCache]: Analyzing trace with hash -702926311, now seen corresponding path program 1 times [2021-11-06 11:29:04,692 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:29:04,692 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579907537] [2021-11-06 11:29:04,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:29:04,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:29:04,749 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:29:04,749 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1184770081] [2021-11-06 11:29:04,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:29:04,749 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:29:04,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:29:04,750 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 11:29:04,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-06 11:29:05,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:29:05,453 INFO L263 TraceCheckSpWp]: Trace formula consists of 2558 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-06 11:29:05,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:29:05,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:29:05,738 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:29:05,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579907537] [2021-11-06 11:29:05,738 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:29:05,738 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1184770081] [2021-11-06 11:29:05,738 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1184770081] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:29:05,738 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:29:05,738 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 11:29:05,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327350488] [2021-11-06 11:29:05,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 11:29:05,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:29:05,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 11:29:05,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 11:29:05,739 INFO L87 Difference]: Start difference. First operand 207 states and 251 transitions. Second operand has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:29:11,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:29:11,060 INFO L93 Difference]: Finished difference Result 452 states and 555 transitions. [2021-11-06 11:29:11,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 11:29:11,061 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 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 59 [2021-11-06 11:29:11,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:29:11,062 INFO L225 Difference]: With dead ends: 452 [2021-11-06 11:29:11,062 INFO L226 Difference]: Without dead ends: 307 [2021-11-06 11:29:11,063 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-06 11:29:11,063 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-11-06 11:29:11,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 214. [2021-11-06 11:29:11,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 205 states have (on average 1.2585365853658537) internal successors, (258), 213 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:29:11,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 258 transitions. [2021-11-06 11:29:11,080 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 258 transitions. Word has length 59 [2021-11-06 11:29:11,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:29:11,080 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 258 transitions. [2021-11-06 11:29:11,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.8) internal successors, (59), 5 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:29:11,081 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 258 transitions. [2021-11-06 11:29:11,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2021-11-06 11:29:11,083 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:29:11,083 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:29:11,124 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-06 11:29:11,308 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:29:11,309 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-06 11:29:11,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:29:11,309 INFO L85 PathProgramCache]: Analyzing trace with hash -645668009, now seen corresponding path program 1 times [2021-11-06 11:29:11,309 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:29:11,309 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973078222] [2021-11-06 11:29:11,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:29:11,309 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:29:11,355 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:29:11,355 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [99581348] [2021-11-06 11:29:11,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:29:11,355 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:29:11,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:29:11,356 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-06 11:29:11,394 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-06 11:34:48,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:34:48,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 2563 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-06 11:34:48,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:34:49,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:34:49,095 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:34:49,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973078222] [2021-11-06 11:34:49,095 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:34:49,095 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99581348] [2021-11-06 11:34:49,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99581348] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:34:49,095 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:34:49,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-06 11:34:49,096 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425982936] [2021-11-06 11:34:49,096 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-06 11:34:49,096 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:34:49,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-06 11:34:49,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 11:34:49,097 INFO L87 Difference]: Start difference. First operand 214 states and 258 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:34:49,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:34:49,116 INFO L93 Difference]: Finished difference Result 398 states and 483 transitions. [2021-11-06 11:34:49,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-06 11:34:49,117 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 59 [2021-11-06 11:34:49,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:34:49,118 INFO L225 Difference]: With dead ends: 398 [2021-11-06 11:34:49,118 INFO L226 Difference]: Without dead ends: 214 [2021-11-06 11:34:49,119 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-06 11:34:49,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2021-11-06 11:34:49,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2021-11-06 11:34:49,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 205 states have (on average 1.2536585365853659) internal successors, (257), 213 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:34:49,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 257 transitions. [2021-11-06 11:34:49,126 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 257 transitions. Word has length 59 [2021-11-06 11:34:49,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:34:49,126 INFO L470 AbstractCegarLoop]: Abstraction has 214 states and 257 transitions. [2021-11-06 11:34:49,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:34:49,126 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 257 transitions. [2021-11-06 11:34:49,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-11-06 11:34:49,127 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:34:49,127 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:34:49,343 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2021-11-06 11:34:49,367 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-06 11:34:49,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:34:49,368 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-06 11:34:49,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:34:49,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1838986612, now seen corresponding path program 1 times [2021-11-06 11:34:49,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:34:49,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145529325] [2021-11-06 11:34:49,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:34:49,368 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:34:49,458 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:34:49,458 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1339768677] [2021-11-06 11:34:49,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:34:49,459 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:34:49,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:34:49,460 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) [2021-11-06 11:34:49,461 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-06 11:41:06,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:41:06,841 INFO L263 TraceCheckSpWp]: Trace formula consists of 2570 conjuncts, 12 conjunts are in the unsatisfiable core [2021-11-06 11:41:06,844 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:41:07,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-06 11:41:07,115 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:41:07,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145529325] [2021-11-06 11:41:07,115 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:41:07,115 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339768677] [2021-11-06 11:41:07,115 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339768677] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:41:07,116 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:41:07,116 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 11:41:07,116 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435692884] [2021-11-06 11:41:07,117 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 11:41:07,117 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:41:07,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 11:41:07,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-06 11:41:07,118 INFO L87 Difference]: Start difference. First operand 214 states and 257 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:41:07,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:41:07,170 INFO L93 Difference]: Finished difference Result 400 states and 485 transitions. [2021-11-06 11:41:07,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 11:41:07,183 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 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 60 [2021-11-06 11:41:07,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:41:07,184 INFO L225 Difference]: With dead ends: 400 [2021-11-06 11:41:07,184 INFO L226 Difference]: Without dead ends: 216 [2021-11-06 11:41:07,184 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-06 11:41:07,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216 states. [2021-11-06 11:41:07,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216 to 215. [2021-11-06 11:41:07,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 206 states have (on average 1.2524271844660195) internal successors, (258), 214 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:41:07,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 258 transitions. [2021-11-06 11:41:07,190 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 258 transitions. Word has length 60 [2021-11-06 11:41:07,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:41:07,190 INFO L470 AbstractCegarLoop]: Abstraction has 215 states and 258 transitions. [2021-11-06 11:41:07,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.0) internal successors, (60), 4 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-06 11:41:07,190 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 258 transitions. [2021-11-06 11:41:07,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-11-06 11:41:07,195 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:41:07,196 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:41:07,396 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forcibly destroying the process [2021-11-06 11:41:07,463 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 137 [2021-11-06 11:41:07,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:41:07,463 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2021-11-06 11:41:07,463 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:41:07,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1314664846, now seen corresponding path program 1 times [2021-11-06 11:41:07,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:41:07,464 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120058572] [2021-11-06 11:41:07,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:41:07,464 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:41:07,555 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:41:07,557 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1125059200] [2021-11-06 11:41:07,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:41:07,557 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:41:07,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:41:07,558 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) [2021-11-06 11:41:07,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process Killed by 15