./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 173e3943 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash b8e2b19500a9ff32f182f41fca1db48d6268985503aaacd0cb9efdaafa7d6419 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-173e394 [2021-11-06 11:27:27,122 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-06 11:27:27,124 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-06 11:27:27,180 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-06 11:27:27,181 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-06 11:27:27,183 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-06 11:27:27,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-06 11:27:27,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-06 11:27:27,187 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-06 11:27:27,190 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-06 11:27:27,191 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-06 11:27:27,192 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-06 11:27:27,192 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-06 11:27:27,193 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-06 11:27:27,195 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-06 11:27:27,199 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-06 11:27:27,200 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-06 11:27:27,200 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-06 11:27:27,202 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-06 11:27:27,204 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-06 11:27:27,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-06 11:27:27,208 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-06 11:27:27,209 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-06 11:27:27,209 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-06 11:27:27,213 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-06 11:27:27,216 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-06 11:27:27,216 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-06 11:27:27,216 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-06 11:27:27,217 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-06 11:27:27,218 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-06 11:27:27,218 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-06 11:27:27,218 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-06 11:27:27,219 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-06 11:27:27,220 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-06 11:27:27,221 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-06 11:27:27,221 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-06 11:27:27,222 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-06 11:27:27,222 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-06 11:27:27,222 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-06 11:27:27,223 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-06 11:27:27,223 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-06 11:27:27,224 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-06 11:27:27,240 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-06 11:27:27,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-06 11:27:27,243 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-06 11:27:27,243 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-06 11:27:27,244 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-06 11:27:27,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-06 11:27:27,244 INFO L138 SettingsManager]: * Use SBE=true [2021-11-06 11:27:27,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-06 11:27:27,244 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-06 11:27:27,244 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-06 11:27:27,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-06 11:27:27,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-06 11:27:27,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-06 11:27:27,246 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-06 11:27:27,246 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-06 11:27:27,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-06 11:27:27,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-06 11:27:27,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-06 11:27:27,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-06 11:27:27,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 11:27:27,247 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-06 11:27:27,247 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-06 11:27:27,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-06 11:27:27,247 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-06 11:27:27,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-06 11:27:27,247 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-06 11:27:27,247 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-06 11:27:27,248 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-06 11:27:27,248 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-06 11:27:27,248 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b8e2b19500a9ff32f182f41fca1db48d6268985503aaacd0cb9efdaafa7d6419 [2021-11-06 11:27:27,410 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-06 11:27:27,432 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-06 11:27:27,433 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-06 11:27:27,434 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-06 11:27:27,435 INFO L275 PluginConnector]: CDTParser initialized [2021-11-06 11:27:27,435 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i [2021-11-06 11:27:27,497 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fca465b4f/48a052d59a444762a935e2fef740ba0d/FLAGbdb62ba26 [2021-11-06 11:27:28,069 INFO L306 CDTParser]: Found 1 translation units. [2021-11-06 11:27:28,069 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/aws-c-common/aws_priority_queue_capacity_harness.i [2021-11-06 11:27:28,095 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fca465b4f/48a052d59a444762a935e2fef740ba0d/FLAGbdb62ba26 [2021-11-06 11:27:28,299 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fca465b4f/48a052d59a444762a935e2fef740ba0d [2021-11-06 11:27:28,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-06 11:27:28,302 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-06 11:27:28,304 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-06 11:27:28,304 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-06 11:27:28,306 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-06 11:27:28,307 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:27:28" (1/1) ... [2021-11-06 11:27:28,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17ec3896 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:27:28, skipping insertion in model container [2021-11-06 11:27:28,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 11:27:28" (1/1) ... [2021-11-06 11:27:28,313 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-06 11:27:28,383 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-06 11:27:28,626 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_capacity_harness.i[4501,4514] [2021-11-06 11:27:28,630 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_capacity_harness.i[4561,4574] [2021-11-06 11:27:28,640 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-06 11:27:28,643 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-06 11:27:29,010 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-06 11:27:29,043 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:29,044 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:29,044 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:29,045 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:29,045 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:29,052 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:29,052 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:29,053 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:29,054 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:29,210 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-06 11:27:29,211 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-06 11:27:29,212 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-06 11:27:29,213 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-06 11:27:29,213 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-06 11:27:29,214 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-06 11:27:29,214 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-06 11:27:29,215 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-06 11:27:29,215 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-06 11:27:29,215 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-06 11:27:29,314 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:29,316 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:29,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 11:27:29,405 INFO L203 MainTranslator]: Completed pre-run [2021-11-06 11:27:29,424 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_capacity_harness.i[4501,4514] [2021-11-06 11:27:29,425 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_capacity_harness.i[4561,4574] [2021-11-06 11:27:29,426 WARN L612 FunctionHandler]: implicit declaration of function __builtin_uaddl_overflow [2021-11-06 11:27:29,427 WARN L612 FunctionHandler]: implicit declaration of function __builtin_umull_overflow [2021-11-06 11:27:29,447 WARN L612 FunctionHandler]: implicit declaration of function __builtin_va_copy [2021-11-06 11:27:29,465 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:29,469 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:29,469 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:29,471 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:29,471 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:29,479 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:29,479 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:29,480 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:29,481 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:29,565 WARN L612 FunctionHandler]: implicit declaration of function __atomic_load_n [2021-11-06 11:27:29,566 WARN L612 FunctionHandler]: implicit declaration of function __atomic_store_n [2021-11-06 11:27:29,567 WARN L612 FunctionHandler]: implicit declaration of function __atomic_exchange_n [2021-11-06 11:27:29,567 WARN L612 FunctionHandler]: implicit declaration of function __atomic_compare_exchange_n [2021-11-06 11:27:29,568 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_add [2021-11-06 11:27:29,568 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_sub [2021-11-06 11:27:29,575 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_or [2021-11-06 11:27:29,575 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_and [2021-11-06 11:27:29,576 WARN L612 FunctionHandler]: implicit declaration of function __atomic_fetch_xor [2021-11-06 11:27:29,576 WARN L612 FunctionHandler]: implicit declaration of function __atomic_thread_fence [2021-11-06 11:27:29,603 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:29,603 WARN L1529 CHandler]: Possible shadowing of function index [2021-11-06 11:27:29,615 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-06 11:27:29,743 INFO L208 MainTranslator]: Completed translation [2021-11-06 11:27:29,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:27:29 WrapperNode [2021-11-06 11:27:29,744 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-06 11:27:29,745 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-06 11:27:29,745 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-06 11:27:29,745 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-06 11:27:29,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:27:29" (1/1) ... [2021-11-06 11:27:29,794 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:27:29" (1/1) ... [2021-11-06 11:27:29,870 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-06 11:27:29,871 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-06 11:27:29,871 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-06 11:27:29,872 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-06 11:27:29,877 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:27:29" (1/1) ... [2021-11-06 11:27:29,877 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:27:29" (1/1) ... [2021-11-06 11:27:29,894 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:27:29" (1/1) ... [2021-11-06 11:27:29,894 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:27:29" (1/1) ... [2021-11-06 11:27:29,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:27:29" (1/1) ... [2021-11-06 11:27:29,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:27:29" (1/1) ... [2021-11-06 11:27:29,961 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:27:29" (1/1) ... [2021-11-06 11:27:29,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-06 11:27:29,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-06 11:27:29,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-06 11:27:29,980 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-06 11:27:29,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:27:29" (1/1) ... [2021-11-06 11:27:29,986 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-06 11:27:29,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:27:30,001 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-06 11:27:30,020 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 11:27:30,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-06 11:27:30,030 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-06 11:27:30,030 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-06 11:27:30,030 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-06 11:27:30,031 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-06 11:27:30,031 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-06 11:27:30,031 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-06 11:27:30,031 INFO L130 BoogieDeclarations]: Found specification of procedure __builtin_umull_overflow [2021-11-06 11:27:30,031 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-06 11:27:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-06 11:27:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-06 11:27:30,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-06 11:27:37,027 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-06 11:27:37,028 INFO L299 CfgBuilder]: Removed 192 assume(true) statements. [2021-11-06 11:27:37,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:27:37 BoogieIcfgContainer [2021-11-06 11:27:37,029 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-06 11:27:37,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-06 11:27:37,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-06 11:27:37,032 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-06 11:27:37,032 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 11:27:28" (1/3) ... [2021-11-06 11:27:37,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38dd9b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:27:37, skipping insertion in model container [2021-11-06 11:27:37,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 11:27:29" (2/3) ... [2021-11-06 11:27:37,033 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@38dd9b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 11:27:37, skipping insertion in model container [2021-11-06 11:27:37,033 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 11:27:37" (3/3) ... [2021-11-06 11:27:37,034 INFO L111 eAbstractionObserver]: Analyzing ICFG aws_priority_queue_capacity_harness.i [2021-11-06 11:27:37,037 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-06 11:27:37,037 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 15 error locations. [2021-11-06 11:27:37,066 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-06 11:27:37,069 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 11:27:37,070 INFO L340 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2021-11-06 11:27:37,081 INFO L276 IsEmpty]: Start isEmpty. Operand has 250 states, 234 states have (on average 1.4487179487179487) internal successors, (339), 249 states have internal predecessors, (339), 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 11:27:37,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-06 11:27:37,086 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:27:37,086 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] [2021-11-06 11:27:37,087 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-06 11:27:37,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:27:37,090 INFO L85 PathProgramCache]: Analyzing trace with hash -1889202216, now seen corresponding path program 1 times [2021-11-06 11:27:37,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:27:37,097 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2076780469] [2021-11-06 11:27:37,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:27:37,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:27:37,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:27:37,528 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 11:27:37,529 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:27:37,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2076780469] [2021-11-06 11:27:37,530 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2076780469] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:27:37,530 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:27:37,531 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-06 11:27:37,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784566073] [2021-11-06 11:27:37,535 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-06 11:27:37,535 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:27:37,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-06 11:27:37,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-06 11:27:37,559 INFO L87 Difference]: Start difference. First operand has 250 states, 234 states have (on average 1.4487179487179487) internal successors, (339), 249 states have internal predecessors, (339), 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 20.0) internal successors, (40), 2 states have internal predecessors, (40), 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 11:27:37,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:27:37,602 INFO L93 Difference]: Finished difference Result 494 states and 671 transitions. [2021-11-06 11:27:37,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-06 11:27:37,603 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 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 40 [2021-11-06 11:27:37,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:27:37,612 INFO L225 Difference]: With dead ends: 494 [2021-11-06 11:27:37,612 INFO L226 Difference]: Without dead ends: 243 [2021-11-06 11:27:37,614 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 11:27:37,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-11-06 11:27:37,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2021-11-06 11:27:37,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 228 states have (on average 1.3201754385964912) internal successors, (301), 242 states have internal predecessors, (301), 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 11:27:37,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 301 transitions. [2021-11-06 11:27:37,655 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 301 transitions. Word has length 40 [2021-11-06 11:27:37,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:27:37,656 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 301 transitions. [2021-11-06 11:27:37,656 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 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 11:27:37,656 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 301 transitions. [2021-11-06 11:27:37,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2021-11-06 11:27:37,660 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:27:37,660 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] [2021-11-06 11:27:37,660 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-06 11:27:37,661 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-06 11:27:37,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:27:37,663 INFO L85 PathProgramCache]: Analyzing trace with hash -947073706, now seen corresponding path program 1 times [2021-11-06 11:27:37,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:27:37,663 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066833006] [2021-11-06 11:27:37,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:27:37,667 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:27:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:27:37,904 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 11:27:37,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:27:37,904 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066833006] [2021-11-06 11:27:37,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066833006] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:27:37,905 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:27:37,905 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 11:27:37,905 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1265914425] [2021-11-06 11:27:37,906 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 11:27:37,906 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:27:37,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 11:27:37,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 11:27:37,906 INFO L87 Difference]: Start difference. First operand 243 states and 301 transitions. Second operand has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 11:27:37,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:27:37,999 INFO L93 Difference]: Finished difference Result 406 states and 497 transitions. [2021-11-06 11:27:38,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-06 11:27:38,000 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 40 [2021-11-06 11:27:38,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:27:38,001 INFO L225 Difference]: With dead ends: 406 [2021-11-06 11:27:38,001 INFO L226 Difference]: Without dead ends: 243 [2021-11-06 11:27:38,002 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-06 11:27:38,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-11-06 11:27:38,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2021-11-06 11:27:38,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 228 states have (on average 1.3114035087719298) internal successors, (299), 242 states have internal predecessors, (299), 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 11:27:38,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 299 transitions. [2021-11-06 11:27:38,009 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 299 transitions. Word has length 40 [2021-11-06 11:27:38,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:27:38,009 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 299 transitions. [2021-11-06 11:27:38,009 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.0) internal successors, (40), 4 states have internal predecessors, (40), 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 11:27:38,010 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 299 transitions. [2021-11-06 11:27:38,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2021-11-06 11:27:38,011 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:27:38,011 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] [2021-11-06 11:27:38,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-06 11:27:38,011 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-06 11:27:38,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:27:38,012 INFO L85 PathProgramCache]: Analyzing trace with hash -1776399483, now seen corresponding path program 1 times [2021-11-06 11:27:38,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:27:38,012 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576425828] [2021-11-06 11:27:38,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:27:38,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:27:38,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:27:38,331 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 11:27:38,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:27:38,332 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576425828] [2021-11-06 11:27:38,332 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576425828] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:27:38,332 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:27:38,332 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 11:27:38,332 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212094300] [2021-11-06 11:27:38,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 11:27:38,332 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:27:38,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 11:27:38,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-11-06 11:27:38,333 INFO L87 Difference]: Start difference. First operand 243 states and 299 transitions. Second operand has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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 11:27:38,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:27:38,637 INFO L93 Difference]: Finished difference Result 521 states and 626 transitions. [2021-11-06 11:27:38,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 11:27:38,638 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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 44 [2021-11-06 11:27:38,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:27:38,639 INFO L225 Difference]: With dead ends: 521 [2021-11-06 11:27:38,639 INFO L226 Difference]: Without dead ends: 326 [2021-11-06 11:27:38,639 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-11-06 11:27:38,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2021-11-06 11:27:38,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 243. [2021-11-06 11:27:38,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 228 states have (on average 1.3026315789473684) internal successors, (297), 242 states have internal predecessors, (297), 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 11:27:38,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 297 transitions. [2021-11-06 11:27:38,647 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 297 transitions. Word has length 44 [2021-11-06 11:27:38,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:27:38,647 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 297 transitions. [2021-11-06 11:27:38,647 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.8) internal successors, (44), 5 states have internal predecessors, (44), 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 11:27:38,647 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 297 transitions. [2021-11-06 11:27:38,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-11-06 11:27:38,648 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:27:38,648 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] [2021-11-06 11:27:38,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-06 11:27:38,649 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-06 11:27:38,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:27:38,649 INFO L85 PathProgramCache]: Analyzing trace with hash 421587873, now seen corresponding path program 1 times [2021-11-06 11:27:38,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:27:38,650 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564352924] [2021-11-06 11:27:38,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:27:38,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:27:38,709 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:27:38,710 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [990590281] [2021-11-06 11:27:38,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:27:38,710 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:27:38,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:27:38,723 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 11:27:38,790 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 11:27:39,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:27:39,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 2577 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-06 11:27:39,421 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:27:39,860 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 11:27:39,860 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:27:39,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564352924] [2021-11-06 11:27:39,860 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:27:39,860 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990590281] [2021-11-06 11:27:39,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990590281] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:27:39,861 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:27:39,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 11:27:39,861 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789335968] [2021-11-06 11:27:39,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 11:27:39,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:27:39,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 11:27:39,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-06 11:27:39,862 INFO L87 Difference]: Start difference. First operand 243 states and 297 transitions. Second operand has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 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 11:27:40,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:27:40,120 INFO L93 Difference]: Finished difference Result 407 states and 492 transitions. [2021-11-06 11:27:40,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 11:27:40,120 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 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 52 [2021-11-06 11:27:40,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:27:40,121 INFO L225 Difference]: With dead ends: 407 [2021-11-06 11:27:40,121 INFO L226 Difference]: Without dead ends: 243 [2021-11-06 11:27:40,122 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-11-06 11:27:40,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-11-06 11:27:40,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2021-11-06 11:27:40,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 228 states have (on average 1.293859649122807) internal successors, (295), 242 states have internal predecessors, (295), 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 11:27:40,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 295 transitions. [2021-11-06 11:27:40,127 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 295 transitions. Word has length 52 [2021-11-06 11:27:40,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:27:40,128 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 295 transitions. [2021-11-06 11:27:40,128 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.666666666666666) internal successors, (52), 5 states have internal predecessors, (52), 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 11:27:40,128 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 295 transitions. [2021-11-06 11:27:40,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2021-11-06 11:27:40,129 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:27:40,129 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:27:40,158 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 11:27:40,329 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:27:40,330 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-06 11:27:40,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:27:40,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1861026450, now seen corresponding path program 1 times [2021-11-06 11:27:40,331 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:27:40,331 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816225403] [2021-11-06 11:27:40,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:27:40,331 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:27:40,404 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:27:40,404 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [993850688] [2021-11-06 11:27:40,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:27:40,404 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:27:40,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:27:40,406 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 11:27:40,407 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 11:27:41,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:27:41,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 2627 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-06 11:27:41,035 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:27:41,412 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 11:27:41,412 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:27:41,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816225403] [2021-11-06 11:27:41,412 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:27:41,412 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [993850688] [2021-11-06 11:27:41,412 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [993850688] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:27:41,412 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:27:41,412 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 11:27:41,412 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053881732] [2021-11-06 11:27:41,413 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-06 11:27:41,413 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:27:41,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-06 11:27:41,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-06 11:27:41,413 INFO L87 Difference]: Start difference. First operand 243 states and 295 transitions. Second operand has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 6 states have internal predecessors, (64), 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 11:27:41,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:27:41,872 INFO L93 Difference]: Finished difference Result 423 states and 512 transitions. [2021-11-06 11:27:41,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-06 11:27:41,872 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 6 states have internal predecessors, (64), 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 64 [2021-11-06 11:27:41,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:27:41,873 INFO L225 Difference]: With dead ends: 423 [2021-11-06 11:27:41,873 INFO L226 Difference]: Without dead ends: 243 [2021-11-06 11:27:41,874 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-11-06 11:27:41,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-11-06 11:27:41,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2021-11-06 11:27:41,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 228 states have (on average 1.2850877192982457) internal successors, (293), 242 states have internal predecessors, (293), 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 11:27:41,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 293 transitions. [2021-11-06 11:27:41,879 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 293 transitions. Word has length 64 [2021-11-06 11:27:41,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:27:41,879 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 293 transitions. [2021-11-06 11:27:41,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 9.142857142857142) internal successors, (64), 6 states have internal predecessors, (64), 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 11:27:41,880 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 293 transitions. [2021-11-06 11:27:41,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-11-06 11:27:41,880 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:27:41,880 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:27:41,902 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-06 11:27:42,099 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:27:42,100 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-06 11:27:42,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:27:42,100 INFO L85 PathProgramCache]: Analyzing trace with hash 219242486, now seen corresponding path program 1 times [2021-11-06 11:27:42,100 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:27:42,100 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662870791] [2021-11-06 11:27:42,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:27:42,100 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:27:42,165 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:27:42,166 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1423829789] [2021-11-06 11:27:42,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:27:42,166 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:27:42,166 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:27:42,167 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 11:27:42,192 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 11:27:42,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:27:42,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 2722 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-06 11:27:42,884 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:27:43,359 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 11:27:43,360 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:27:43,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662870791] [2021-11-06 11:27:43,360 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:27:43,360 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1423829789] [2021-11-06 11:27:43,360 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1423829789] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:27:43,360 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:27:43,360 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 11:27:43,360 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391437463] [2021-11-06 11:27:43,361 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 11:27:43,361 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:27:43,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 11:27:43,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 11:27:43,361 INFO L87 Difference]: Start difference. First operand 243 states and 293 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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 11:27:43,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:27:43,630 INFO L93 Difference]: Finished difference Result 376 states and 448 transitions. [2021-11-06 11:27:43,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 11:27:43,630 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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 72 [2021-11-06 11:27:43,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:27:43,632 INFO L225 Difference]: With dead ends: 376 [2021-11-06 11:27:43,632 INFO L226 Difference]: Without dead ends: 243 [2021-11-06 11:27:43,632 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-06 11:27:43,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2021-11-06 11:27:43,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 243. [2021-11-06 11:27:43,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 243 states, 228 states have (on average 1.2763157894736843) internal successors, (291), 242 states have internal predecessors, (291), 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 11:27:43,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 291 transitions. [2021-11-06 11:27:43,643 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 291 transitions. Word has length 72 [2021-11-06 11:27:43,644 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:27:43,644 INFO L470 AbstractCegarLoop]: Abstraction has 243 states and 291 transitions. [2021-11-06 11:27:43,645 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 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 11:27:43,645 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 291 transitions. [2021-11-06 11:27:43,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-06 11:27:43,646 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:27:43,647 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:27:43,683 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 11:27:43,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:27:43,859 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-06 11:27:43,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:27:43,860 INFO L85 PathProgramCache]: Analyzing trace with hash 1338123328, now seen corresponding path program 1 times [2021-11-06 11:27:43,860 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:27:43,860 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1203622341] [2021-11-06 11:27:43,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:27:43,860 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:27:43,919 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:27:43,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1747308585] [2021-11-06 11:27:43,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:27:43,921 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:27:43,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:27:43,924 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 11:27:43,925 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 11:27:44,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:27:44,593 INFO L263 TraceCheckSpWp]: Trace formula consists of 2907 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-06 11:27:44,596 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:27:44,823 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 11:27:44,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:27:44,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1203622341] [2021-11-06 11:27:44,824 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:27:44,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1747308585] [2021-11-06 11:27:44,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1747308585] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:27:44,824 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:27:44,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 11:27:44,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957470011] [2021-11-06 11:27:44,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 11:27:44,825 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:27:44,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 11:27:44,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 11:27:44,825 INFO L87 Difference]: Start difference. First operand 243 states and 291 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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 11:27:45,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:27:45,111 INFO L93 Difference]: Finished difference Result 469 states and 567 transitions. [2021-11-06 11:27:45,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 11:27:45,112 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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 88 [2021-11-06 11:27:45,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:27:45,113 INFO L225 Difference]: With dead ends: 469 [2021-11-06 11:27:45,113 INFO L226 Difference]: Without dead ends: 273 [2021-11-06 11:27:45,113 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 86 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 11:27:45,113 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2021-11-06 11:27:45,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 255. [2021-11-06 11:27:45,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 240 states have (on average 1.2625) internal successors, (303), 254 states have internal predecessors, (303), 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 11:27:45,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 303 transitions. [2021-11-06 11:27:45,119 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 303 transitions. Word has length 88 [2021-11-06 11:27:45,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:27:45,119 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 303 transitions. [2021-11-06 11:27:45,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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 11:27:45,120 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 303 transitions. [2021-11-06 11:27:45,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-06 11:27:45,120 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:27:45,120 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:27:45,146 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-06 11:27:45,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:27:45,335 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-06 11:27:45,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:27:45,336 INFO L85 PathProgramCache]: Analyzing trace with hash -436884034, now seen corresponding path program 1 times [2021-11-06 11:27:45,336 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:27:45,336 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952810672] [2021-11-06 11:27:45,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:27:45,336 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:27:45,446 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:27:45,446 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1726865318] [2021-11-06 11:27:45,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:27:45,447 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:27:45,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:27:45,448 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 11:27:45,449 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 11:27:46,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:27:46,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 2912 conjuncts, 19 conjunts are in the unsatisfiable core [2021-11-06 11:27:46,172 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:27:46,473 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 11:27:46,473 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:27:46,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952810672] [2021-11-06 11:27:46,474 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:27:46,474 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726865318] [2021-11-06 11:27:46,474 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726865318] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:27:46,474 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:27:46,474 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 11:27:46,474 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [919441307] [2021-11-06 11:27:46,474 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 11:27:46,474 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:27:46,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 11:27:46,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 11:27:46,475 INFO L87 Difference]: Start difference. First operand 255 states and 303 transitions. Second operand has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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 11:27:46,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:27:46,633 INFO L93 Difference]: Finished difference Result 592 states and 693 transitions. [2021-11-06 11:27:46,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 11:27:46,633 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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 88 [2021-11-06 11:27:46,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:27:46,635 INFO L225 Difference]: With dead ends: 592 [2021-11-06 11:27:46,635 INFO L226 Difference]: Without dead ends: 419 [2021-11-06 11:27:46,635 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-11-06 11:27:46,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2021-11-06 11:27:46,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 267. [2021-11-06 11:27:46,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 267 states, 252 states have (on average 1.2658730158730158) internal successors, (319), 266 states have internal predecessors, (319), 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 11:27:46,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 319 transitions. [2021-11-06 11:27:46,642 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 319 transitions. Word has length 88 [2021-11-06 11:27:46,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:27:46,642 INFO L470 AbstractCegarLoop]: Abstraction has 267 states and 319 transitions. [2021-11-06 11:27:46,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 17.6) internal successors, (88), 5 states have internal predecessors, (88), 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 11:27:46,643 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 319 transitions. [2021-11-06 11:27:46,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-06 11:27:46,643 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:27:46,643 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:27:46,668 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 11:27:46,847 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 [2021-11-06 11:27:46,847 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-06 11:27:46,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:27:46,848 INFO L85 PathProgramCache]: Analyzing trace with hash 1612503808, now seen corresponding path program 1 times [2021-11-06 11:27:46,848 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:27:46,848 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273068485] [2021-11-06 11:27:46,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:27:46,848 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:27:46,917 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:27:46,917 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1143911508] [2021-11-06 11:27:46,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:27:46,919 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:27:46,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:27:46,934 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 11:27:46,935 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 11:27:47,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:27:47,750 INFO L263 TraceCheckSpWp]: Trace formula consists of 2917 conjuncts, 9 conjunts are in the unsatisfiable core [2021-11-06 11:27:47,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:27:48,262 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 11:27:48,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:27:48,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273068485] [2021-11-06 11:27:48,263 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:27:48,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143911508] [2021-11-06 11:27:48,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143911508] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:27:48,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:27:48,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-06 11:27:48,263 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463861952] [2021-11-06 11:27:48,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-06 11:27:48,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:27:48,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-06 11:27:48,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-06 11:27:48,264 INFO L87 Difference]: Start difference. First operand 267 states and 319 transitions. Second operand has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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 11:27:56,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:27:56,277 INFO L93 Difference]: Finished difference Result 633 states and 750 transitions. [2021-11-06 11:27:56,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-06 11:27:56,278 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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 88 [2021-11-06 11:27:56,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:27:56,280 INFO L225 Difference]: With dead ends: 633 [2021-11-06 11:27:56,280 INFO L226 Difference]: Without dead ends: 445 [2021-11-06 11:27:56,280 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-11-06 11:27:56,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 445 states. [2021-11-06 11:27:56,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 445 to 275. [2021-11-06 11:27:56,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 260 states have (on average 1.2653846153846153) internal successors, (329), 274 states have internal predecessors, (329), 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 11:27:56,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 329 transitions. [2021-11-06 11:27:56,287 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 329 transitions. Word has length 88 [2021-11-06 11:27:56,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:27:56,288 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 329 transitions. [2021-11-06 11:27:56,288 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.666666666666666) internal successors, (88), 6 states have internal predecessors, (88), 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 11:27:56,288 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 329 transitions. [2021-11-06 11:27:56,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-06 11:27:56,289 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:27:56,289 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:27:56,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-06 11:27:56,512 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 [2021-11-06 11:27:56,512 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-06 11:27:56,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:27:56,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1860650302, now seen corresponding path program 1 times [2021-11-06 11:27:56,512 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:27:56,512 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696147666] [2021-11-06 11:27:56,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:27:56,513 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:27:56,582 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:27:56,582 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1035980084] [2021-11-06 11:27:56,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:27:56,582 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:27:56,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:27:56,583 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 11:27:56,585 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-06 11:27:57,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:27:57,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 2914 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-06 11:27:57,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:27:57,618 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 11:27:57,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:27:57,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696147666] [2021-11-06 11:27:57,618 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:27:57,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1035980084] [2021-11-06 11:27:57,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1035980084] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:27:57,618 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:27:57,619 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 11:27:57,619 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779724985] [2021-11-06 11:27:57,619 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 11:27:57,619 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:27:57,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 11:27:57,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 11:27:57,620 INFO L87 Difference]: Start difference. First operand 275 states and 329 transitions. Second operand has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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 11:27:57,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:27:57,725 INFO L93 Difference]: Finished difference Result 483 states and 574 transitions. [2021-11-06 11:27:57,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 11:27:57,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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 88 [2021-11-06 11:27:57,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:27:57,727 INFO L225 Difference]: With dead ends: 483 [2021-11-06 11:27:57,727 INFO L226 Difference]: Without dead ends: 291 [2021-11-06 11:27:57,727 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 85 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 11:27:57,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2021-11-06 11:27:57,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 283. [2021-11-06 11:27:57,733 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 283 states, 268 states have (on average 1.257462686567164) internal successors, (337), 282 states have internal predecessors, (337), 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 11:27:57,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 283 states to 283 states and 337 transitions. [2021-11-06 11:27:57,733 INFO L78 Accepts]: Start accepts. Automaton has 283 states and 337 transitions. Word has length 88 [2021-11-06 11:27:57,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:27:57,733 INFO L470 AbstractCegarLoop]: Abstraction has 283 states and 337 transitions. [2021-11-06 11:27:57,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.0) internal successors, (88), 4 states have internal predecessors, (88), 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 11:27:57,734 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states and 337 transitions. [2021-11-06 11:27:57,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-11-06 11:27:57,734 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:27:57,734 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-06 11:27:57,767 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-06 11:27:57,935 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 [2021-11-06 11:27:57,935 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-06 11:27:57,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:27:57,936 INFO L85 PathProgramCache]: Analyzing trace with hash 488843004, now seen corresponding path program 1 times [2021-11-06 11:27:57,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:27:57,936 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268669742] [2021-11-06 11:27:57,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:27:57,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:27:58,011 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:27:58,011 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [949447012] [2021-11-06 11:27:58,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:27:58,011 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:27:58,012 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:27:58,012 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) [2021-11-06 11:27:58,014 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-06 11:27:58,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:27:58,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 2909 conjuncts, 94 conjunts are in the unsatisfiable core [2021-11-06 11:27:58,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:28:00,248 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 [2021-11-06 11:28:00,649 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 11:28:00,649 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:28:00,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268669742] [2021-11-06 11:28:00,649 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:28:00,649 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949447012] [2021-11-06 11:28:00,650 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [949447012] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:28:00,650 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:28:00,650 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-11-06 11:28:00,651 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324309198] [2021-11-06 11:28:00,651 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2021-11-06 11:28:00,652 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:28:00,652 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-11-06 11:28:00,652 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2021-11-06 11:28:00,652 INFO L87 Difference]: Start difference. First operand 283 states and 337 transitions. Second operand has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 13 states have internal predecessors, (88), 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 11:28:07,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:28:07,312 INFO L93 Difference]: Finished difference Result 697 states and 823 transitions. [2021-11-06 11:28:07,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-11-06 11:28:07,313 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 13 states have internal predecessors, (88), 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 88 [2021-11-06 11:28:07,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:28:07,314 INFO L225 Difference]: With dead ends: 697 [2021-11-06 11:28:07,314 INFO L226 Difference]: Without dead ends: 510 [2021-11-06 11:28:07,315 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 101 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=191, Invalid=511, Unknown=0, NotChecked=0, Total=702 [2021-11-06 11:28:07,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2021-11-06 11:28:07,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 397. [2021-11-06 11:28:07,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 397 states, 382 states have (on average 1.2539267015706805) internal successors, (479), 396 states have internal predecessors, (479), 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 11:28:07,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 397 states to 397 states and 479 transitions. [2021-11-06 11:28:07,328 INFO L78 Accepts]: Start accepts. Automaton has 397 states and 479 transitions. Word has length 88 [2021-11-06 11:28:07,328 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:28:07,328 INFO L470 AbstractCegarLoop]: Abstraction has 397 states and 479 transitions. [2021-11-06 11:28:07,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.769230769230769) internal successors, (88), 13 states have internal predecessors, (88), 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 11:28:07,328 INFO L276 IsEmpty]: Start isEmpty. Operand 397 states and 479 transitions. [2021-11-06 11:28:07,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-06 11:28:07,329 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:28:07,329 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:28:07,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-06 11:28:07,535 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 [2021-11-06 11:28:07,535 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-06 11:28:07,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:28:07,536 INFO L85 PathProgramCache]: Analyzing trace with hash -2128931166, now seen corresponding path program 1 times [2021-11-06 11:28:07,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:28:07,536 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111587369] [2021-11-06 11:28:07,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:07,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:28:07,591 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:28:07,591 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2007886801] [2021-11-06 11:28:07,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:07,591 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:28:07,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:28:07,592 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) [2021-11-06 11:28:07,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-06 11:28:08,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:28:08,920 INFO L263 TraceCheckSpWp]: Trace formula consists of 2914 conjuncts, 151 conjunts are in the unsatisfiable core [2021-11-06 11:28:08,925 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:28:08,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-06 11:28:09,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:09,602 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 23 treesize of output 22 [2021-11-06 11:28:09,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:09,634 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 23 treesize of output 22 [2021-11-06 11:28:10,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:10,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:10,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:10,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-06 11:28:10,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:10,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:10,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:10,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-06 11:28:10,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:10,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:10,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:10,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-06 11:28:10,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:10,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:10,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:10,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-06 11:28:11,130 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-06 11:28:11,130 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 [2021-11-06 11:28:11,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:11,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:11,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:11,515 INFO L354 Elim1Store]: treesize reduction 96, result has 21.3 percent of original size [2021-11-06 11:28:11,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 79 [2021-11-06 11:28:11,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:11,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:11,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:11,610 INFO L354 Elim1Store]: treesize reduction 96, result has 21.3 percent of original size [2021-11-06 11:28:11,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 64 [2021-11-06 11:28:13,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:13,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:13,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:13,229 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-06 11:28:13,229 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 79 [2021-11-06 11:28:13,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:13,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:13,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:13,282 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-06 11:28:13,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 68 [2021-11-06 11:28:13,986 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 11:28:13,987 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:28:13,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111587369] [2021-11-06 11:28:13,987 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:28:13,987 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2007886801] [2021-11-06 11:28:13,987 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2007886801] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:28:13,987 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:28:13,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2021-11-06 11:28:13,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108765327] [2021-11-06 11:28:13,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2021-11-06 11:28:13,988 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:28:13,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2021-11-06 11:28:13,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=516, Unknown=0, NotChecked=0, Total=600 [2021-11-06 11:28:13,989 INFO L87 Difference]: Start difference. First operand 397 states and 479 transitions. Second operand has 25 states, 25 states have (on average 3.6) internal successors, (90), 25 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) [2021-11-06 11:28:37,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:28:37,888 INFO L93 Difference]: Finished difference Result 1350 states and 1630 transitions. [2021-11-06 11:28:37,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-06 11:28:37,889 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.6) internal successors, (90), 25 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 [2021-11-06 11:28:37,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:28:37,892 INFO L225 Difference]: With dead ends: 1350 [2021-11-06 11:28:37,892 INFO L226 Difference]: Without dead ends: 1000 [2021-11-06 11:28:37,893 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=305, Invalid=1675, Unknown=0, NotChecked=0, Total=1980 [2021-11-06 11:28:37,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2021-11-06 11:28:37,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 643. [2021-11-06 11:28:37,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 643 states, 628 states have (on average 1.2452229299363058) internal successors, (782), 642 states have internal predecessors, (782), 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 11:28:37,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 643 states to 643 states and 782 transitions. [2021-11-06 11:28:37,915 INFO L78 Accepts]: Start accepts. Automaton has 643 states and 782 transitions. Word has length 90 [2021-11-06 11:28:37,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:28:37,915 INFO L470 AbstractCegarLoop]: Abstraction has 643 states and 782 transitions. [2021-11-06 11:28:37,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.6) internal successors, (90), 25 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) [2021-11-06 11:28:37,916 INFO L276 IsEmpty]: Start isEmpty. Operand 643 states and 782 transitions. [2021-11-06 11:28:37,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-06 11:28:37,917 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:28:37,917 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:28:37,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-06 11:28:38,127 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 [2021-11-06 11:28:38,128 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-06 11:28:38,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:28:38,128 INFO L85 PathProgramCache]: Analyzing trace with hash -1685030492, now seen corresponding path program 1 times [2021-11-06 11:28:38,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:28:38,128 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847982247] [2021-11-06 11:28:38,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:38,129 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:28:38,246 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:28:38,253 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [214792448] [2021-11-06 11:28:38,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:38,254 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:28:38,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:28:38,292 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) [2021-11-06 11:28:38,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-06 11:28:39,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:28:39,250 INFO L263 TraceCheckSpWp]: Trace formula consists of 2909 conjuncts, 8 conjunts are in the unsatisfiable core [2021-11-06 11:28:39,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:28:39,667 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 11:28:39,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:28:39,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847982247] [2021-11-06 11:28:39,668 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:28:39,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214792448] [2021-11-06 11:28:39,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214792448] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:28:39,668 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:28:39,668 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-11-06 11:28:39,668 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896205670] [2021-11-06 11:28:39,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-11-06 11:28:39,669 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:28:39,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-11-06 11:28:39,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-11-06 11:28:39,669 INFO L87 Difference]: Start difference. First operand 643 states and 782 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 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) [2021-11-06 11:28:45,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:28:45,445 INFO L93 Difference]: Finished difference Result 1456 states and 1762 transitions. [2021-11-06 11:28:45,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-06 11:28:45,446 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 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 [2021-11-06 11:28:45,446 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:28:45,448 INFO L225 Difference]: With dead ends: 1456 [2021-11-06 11:28:45,448 INFO L226 Difference]: Without dead ends: 883 [2021-11-06 11:28:45,449 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 92 GetRequests, 87 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 11:28:45,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 883 states. [2021-11-06 11:28:45,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 883 to 656. [2021-11-06 11:28:45,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 656 states, 641 states have (on average 1.2324492979719188) internal successors, (790), 655 states have internal predecessors, (790), 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 11:28:45,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 656 states to 656 states and 790 transitions. [2021-11-06 11:28:45,495 INFO L78 Accepts]: Start accepts. Automaton has 656 states and 790 transitions. Word has length 90 [2021-11-06 11:28:45,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:28:45,496 INFO L470 AbstractCegarLoop]: Abstraction has 656 states and 790 transitions. [2021-11-06 11:28:45,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 5 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) [2021-11-06 11:28:45,496 INFO L276 IsEmpty]: Start isEmpty. Operand 656 states and 790 transitions. [2021-11-06 11:28:45,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-06 11:28:45,497 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:28:45,497 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:28:45,523 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-06 11:28:45,705 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 [2021-11-06 11:28:45,705 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-06 11:28:45,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:28:45,706 INFO L85 PathProgramCache]: Analyzing trace with hash 2128856546, now seen corresponding path program 1 times [2021-11-06 11:28:45,706 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:28:45,706 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432974845] [2021-11-06 11:28:45,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:45,706 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:28:45,805 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:28:45,806 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [981825903] [2021-11-06 11:28:45,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:28:45,806 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:28:45,806 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:28:45,807 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) [2021-11-06 11:28:45,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-06 11:28:47,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:28:47,458 INFO L263 TraceCheckSpWp]: Trace formula consists of 2914 conjuncts, 158 conjunts are in the unsatisfiable core [2021-11-06 11:28:47,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:28:47,478 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-06 11:28:48,108 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:48,109 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 23 treesize of output 22 [2021-11-06 11:28:48,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:48,141 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 23 treesize of output 22 [2021-11-06 11:28:48,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:48,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:48,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:48,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-06 11:28:48,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:48,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:48,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:48,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2021-11-06 11:28:49,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:49,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:49,132 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:49,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-06 11:28:49,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:49,169 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:49,173 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:49,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2021-11-06 11:28:49,692 INFO L354 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2021-11-06 11:28:49,692 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 [2021-11-06 11:28:49,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:49,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:50,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:50,138 INFO L354 Elim1Store]: treesize reduction 96, result has 21.3 percent of original size [2021-11-06 11:28:50,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 85 treesize of output 79 [2021-11-06 11:28:50,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:50,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:50,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:50,236 INFO L354 Elim1Store]: treesize reduction 96, result has 21.3 percent of original size [2021-11-06 11:28:50,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 70 treesize of output 64 [2021-11-06 11:28:51,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:51,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:51,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:52,027 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-06 11:28:52,027 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 79 [2021-11-06 11:28:52,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:52,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:52,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:28:52,096 INFO L354 Elim1Store]: treesize reduction 17, result has 39.3 percent of original size [2021-11-06 11:28:52,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 70 treesize of output 68 [2021-11-06 11:28:53,531 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 11:28:53,532 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:28:53,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432974845] [2021-11-06 11:28:53,532 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:28:53,532 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981825903] [2021-11-06 11:28:53,532 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981825903] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:28:53,532 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:28:53,532 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-11-06 11:28:53,532 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937216500] [2021-11-06 11:28:53,532 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2021-11-06 11:28:53,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:28:53,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-11-06 11:28:53,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=616, Unknown=0, NotChecked=0, Total=702 [2021-11-06 11:28:53,533 INFO L87 Difference]: Start difference. First operand 656 states and 790 transitions. Second operand has 27 states, 27 states have (on average 3.3333333333333335) internal successors, (90), 27 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) [2021-11-06 11:29:29,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:29:29,022 INFO L93 Difference]: Finished difference Result 1495 states and 1756 transitions. [2021-11-06 11:29:29,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-11-06 11:29:29,023 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.3333333333333335) internal successors, (90), 27 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 [2021-11-06 11:29:29,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:29:29,026 INFO L225 Difference]: With dead ends: 1495 [2021-11-06 11:29:29,026 INFO L226 Difference]: Without dead ends: 1172 [2021-11-06 11:29:29,027 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1135 ImplicationChecksByTransitivity, 8.0s TimeCoverageRelationStatistics Valid=473, Invalid=3433, Unknown=0, NotChecked=0, Total=3906 [2021-11-06 11:29:29,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1172 states. [2021-11-06 11:29:29,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1172 to 678. [2021-11-06 11:29:29,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 678 states, 663 states have (on average 1.2232277526395174) internal successors, (811), 677 states have internal predecessors, (811), 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 11:29:29,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 678 states to 678 states and 811 transitions. [2021-11-06 11:29:29,049 INFO L78 Accepts]: Start accepts. Automaton has 678 states and 811 transitions. Word has length 90 [2021-11-06 11:29:29,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:29:29,049 INFO L470 AbstractCegarLoop]: Abstraction has 678 states and 811 transitions. [2021-11-06 11:29:29,050 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 3.3333333333333335) internal successors, (90), 27 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) [2021-11-06 11:29:29,050 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states and 811 transitions. [2021-11-06 11:29:29,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-11-06 11:29:29,050 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:29:29,051 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:29:29,081 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2021-11-06 11:29:29,274 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 [2021-11-06 11:29:29,274 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-06 11:29:29,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:29:29,275 INFO L85 PathProgramCache]: Analyzing trace with hash 885822756, now seen corresponding path program 1 times [2021-11-06 11:29:29,275 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:29:29,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998030186] [2021-11-06 11:29:29,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:29:29,283 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:29:29,377 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:29:29,377 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1661130262] [2021-11-06 11:29:29,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:29:29,377 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:29:29,377 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:29:29,379 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) [2021-11-06 11:29:29,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-06 11:29:30,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:29:30,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 2919 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-06 11:29:30,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:29:30,818 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 11:29:30,818 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:29:30,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998030186] [2021-11-06 11:29:30,818 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:29:30,818 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661130262] [2021-11-06 11:29:30,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661130262] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:29:30,818 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:29:30,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-06 11:29:30,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [522087431] [2021-11-06 11:29:30,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-06 11:29:30,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:29:30,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-06 11:29:30,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-06 11:29:30,819 INFO L87 Difference]: Start difference. First operand 678 states and 811 transitions. Second operand has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 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) [2021-11-06 11:29:30,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:29:30,948 INFO L93 Difference]: Finished difference Result 1176 states and 1400 transitions. [2021-11-06 11:29:30,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-06 11:29:30,949 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 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 [2021-11-06 11:29:30,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:29:30,952 INFO L225 Difference]: With dead ends: 1176 [2021-11-06 11:29:30,952 INFO L226 Difference]: Without dead ends: 666 [2021-11-06 11:29:30,954 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 90 GetRequests, 87 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 11:29:30,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 666 states. [2021-11-06 11:29:30,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 666 to 559. [2021-11-06 11:29:30,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 559 states, 544 states have (on average 1.213235294117647) internal successors, (660), 558 states have internal predecessors, (660), 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 11:29:30,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 559 states to 559 states and 660 transitions. [2021-11-06 11:29:30,970 INFO L78 Accepts]: Start accepts. Automaton has 559 states and 660 transitions. Word has length 90 [2021-11-06 11:29:30,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:29:30,971 INFO L470 AbstractCegarLoop]: Abstraction has 559 states and 660 transitions. [2021-11-06 11:29:30,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.5) internal successors, (90), 4 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) [2021-11-06 11:29:30,971 INFO L276 IsEmpty]: Start isEmpty. Operand 559 states and 660 transitions. [2021-11-06 11:29:30,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-06 11:29:30,972 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:29:30,972 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:29:30,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-11-06 11:29:31,195 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 [2021-11-06 11:29:31,196 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-06 11:29:31,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:29:31,196 INFO L85 PathProgramCache]: Analyzing trace with hash 408231422, now seen corresponding path program 1 times [2021-11-06 11:29:31,196 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:29:31,196 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180500030] [2021-11-06 11:29:31,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:29:31,196 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:29:31,250 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:29:31,251 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [880744456] [2021-11-06 11:29:31,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:29:31,251 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:29:31,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:29:31,252 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) [2021-11-06 11:29:31,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-06 11:33:16,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:33:16,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 2936 conjuncts, 42 conjunts are in the unsatisfiable core [2021-11-06 11:33:16,703 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:33:21,384 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 11:33:21,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:33:21,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180500030] [2021-11-06 11:33:21,384 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:33:21,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880744456] [2021-11-06 11:33:21,384 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [880744456] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:33:21,384 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:33:21,384 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-11-06 11:33:21,385 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390651353] [2021-11-06 11:33:21,385 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-11-06 11:33:21,385 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:33:21,385 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-11-06 11:33:21,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-11-06 11:33:21,385 INFO L87 Difference]: Start difference. First operand 559 states and 660 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 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 11:35:30,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:35:30,192 INFO L93 Difference]: Finished difference Result 1746 states and 2019 transitions. [2021-11-06 11:35:30,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-11-06 11:35:30,193 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 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 91 [2021-11-06 11:35:30,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:35:30,196 INFO L225 Difference]: With dead ends: 1746 [2021-11-06 11:35:30,197 INFO L226 Difference]: Without dead ends: 1374 [2021-11-06 11:35:30,197 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 19.6s TimeCoverageRelationStatistics Valid=138, Invalid=362, Unknown=6, NotChecked=0, Total=506 [2021-11-06 11:35:30,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1374 states. [2021-11-06 11:35:30,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1374 to 563. [2021-11-06 11:35:30,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 548 states have (on average 1.2116788321167884) internal successors, (664), 562 states have internal predecessors, (664), 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 11:35:30,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 664 transitions. [2021-11-06 11:35:30,225 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 664 transitions. Word has length 91 [2021-11-06 11:35:30,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:35:30,226 INFO L470 AbstractCegarLoop]: Abstraction has 563 states and 664 transitions. [2021-11-06 11:35:30,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 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 11:35:30,226 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 664 transitions. [2021-11-06 11:35:30,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2021-11-06 11:35:30,227 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:35:30,227 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:35:30,427 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forcibly destroying the process [2021-11-06 11:35:30,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 137 [2021-11-06 11:35:30,475 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 [2021-11-06 11:35:30,475 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-06 11:35:30,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:35:30,476 INFO L85 PathProgramCache]: Analyzing trace with hash 2122925492, now seen corresponding path program 1 times [2021-11-06 11:35:30,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:35:30,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435100317] [2021-11-06 11:35:30,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:35:30,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:35:30,540 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:35:30,540 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [577159180] [2021-11-06 11:35:30,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:35:30,540 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:35:30,541 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:35:30,541 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) [2021-11-06 11:35:30,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-06 11:35:31,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:35:31,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 2939 conjuncts, 32 conjunts are in the unsatisfiable core [2021-11-06 11:35:31,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:35:32,184 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 11:35:32,184 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:35:32,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435100317] [2021-11-06 11:35:32,184 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:35:32,184 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [577159180] [2021-11-06 11:35:32,184 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [577159180] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:35:32,184 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:35:32,185 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-06 11:35:32,185 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850521028] [2021-11-06 11:35:32,185 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-06 11:35:32,185 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:35:32,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-06 11:35:32,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-11-06 11:35:32,186 INFO L87 Difference]: Start difference. First operand 563 states and 664 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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 11:35:32,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:35:32,638 INFO L93 Difference]: Finished difference Result 1000 states and 1164 transitions. [2021-11-06 11:35:32,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-06 11:35:32,638 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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 91 [2021-11-06 11:35:32,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:35:32,640 INFO L225 Difference]: With dead ends: 1000 [2021-11-06 11:35:32,640 INFO L226 Difference]: Without dead ends: 630 [2021-11-06 11:35:32,641 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2021-11-06 11:35:32,642 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2021-11-06 11:35:32,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 563. [2021-11-06 11:35:32,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 563 states, 548 states have (on average 1.2062043795620438) internal successors, (661), 562 states have internal predecessors, (661), 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 11:35:32,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 563 states to 563 states and 661 transitions. [2021-11-06 11:35:32,668 INFO L78 Accepts]: Start accepts. Automaton has 563 states and 661 transitions. Word has length 91 [2021-11-06 11:35:32,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:35:32,669 INFO L470 AbstractCegarLoop]: Abstraction has 563 states and 661 transitions. [2021-11-06 11:35:32,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 7 states have internal predecessors, (91), 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 11:35:32,669 INFO L276 IsEmpty]: Start isEmpty. Operand 563 states and 661 transitions. [2021-11-06 11:35:32,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-06 11:35:32,670 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:35:32,670 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:35:32,713 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-06 11:35:32,888 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 [2021-11-06 11:35:32,889 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-06 11:35:32,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:35:32,889 INFO L85 PathProgramCache]: Analyzing trace with hash -937071218, now seen corresponding path program 1 times [2021-11-06 11:35:32,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:35:32,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300420508] [2021-11-06 11:35:32,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:35:32,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:35:32,976 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:35:32,977 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [805062678] [2021-11-06 11:35:32,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:35:32,977 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:35:32,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:35:32,978 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) [2021-11-06 11:35:32,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-06 11:35:34,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:35:34,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 2931 conjuncts, 65 conjunts are in the unsatisfiable core [2021-11-06 11:35:34,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:35:34,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-06 11:35:34,864 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-06 11:35:34,865 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 [2021-11-06 11:35:35,014 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 [2021-11-06 11:35:35,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:35:35,357 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 45 treesize of output 32 [2021-11-06 11:35:35,945 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-06 11:35:35,946 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 48 treesize of output 35 [2021-11-06 11:35:36,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:35:36,023 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 [2021-11-06 11:35:36,469 INFO L354 Elim1Store]: treesize reduction 8, result has 61.9 percent of original size [2021-11-06 11:35:36,469 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 20 treesize of output 22 [2021-11-06 11:35:36,697 INFO L354 Elim1Store]: treesize reduction 56, result has 21.1 percent of original size [2021-11-06 11:35:36,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 3 case distinctions, treesize of input 51 treesize of output 34 [2021-11-06 11:35:36,881 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-06 11:35:36,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 12 [2021-11-06 11:35:37,263 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 11:35:37,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:35:37,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300420508] [2021-11-06 11:35:37,263 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:35:37,263 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [805062678] [2021-11-06 11:35:37,263 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [805062678] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:35:37,263 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:35:37,263 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-11-06 11:35:37,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992915350] [2021-11-06 11:35:37,264 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-11-06 11:35:37,264 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:35:37,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-11-06 11:35:37,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-11-06 11:35:37,264 INFO L87 Difference]: Start difference. First operand 563 states and 661 transitions. Second operand has 15 states, 15 states have (on average 6.2) internal successors, (93), 15 states have internal predecessors, (93), 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 11:35:54,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:35:54,140 INFO L93 Difference]: Finished difference Result 976 states and 1143 transitions. [2021-11-06 11:35:54,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-11-06 11:35:54,141 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.2) internal successors, (93), 15 states have internal predecessors, (93), 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 93 [2021-11-06 11:35:54,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:35:54,143 INFO L225 Difference]: With dead ends: 976 [2021-11-06 11:35:54,143 INFO L226 Difference]: Without dead ends: 627 [2021-11-06 11:35:54,144 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=176, Invalid=636, Unknown=0, NotChecked=0, Total=812 [2021-11-06 11:35:54,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 627 states. [2021-11-06 11:35:54,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 627 to 583. [2021-11-06 11:35:54,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 583 states, 568 states have (on average 1.204225352112676) internal successors, (684), 582 states have internal predecessors, (684), 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 11:35:54,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 684 transitions. [2021-11-06 11:35:54,171 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 684 transitions. Word has length 93 [2021-11-06 11:35:54,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:35:54,172 INFO L470 AbstractCegarLoop]: Abstraction has 583 states and 684 transitions. [2021-11-06 11:35:54,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.2) internal successors, (93), 15 states have internal predecessors, (93), 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 11:35:54,172 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 684 transitions. [2021-11-06 11:35:54,173 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-06 11:35:54,173 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:35:54,173 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:35:54,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-06 11:35:54,395 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 [2021-11-06 11:35:54,395 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-06 11:35:54,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:35:54,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1964366244, now seen corresponding path program 1 times [2021-11-06 11:35:54,396 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:35:54,396 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215838050] [2021-11-06 11:35:54,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:35:54,396 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:35:54,457 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:35:54,457 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1054277819] [2021-11-06 11:35:54,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:35:54,457 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:35:54,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:35:54,458 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) [2021-11-06 11:35:54,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-06 11:35:55,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:35:55,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 2931 conjuncts, 137 conjunts are in the unsatisfiable core [2021-11-06 11:35:55,922 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:35:55,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-06 11:35:56,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:35:56,721 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 31 treesize of output 15 [2021-11-06 11:35:57,970 INFO L354 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2021-11-06 11:35:57,970 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 15 treesize of output 17 [2021-11-06 11:35:58,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:35:58,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:35:58,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:35:58,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:35:58,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:35:58,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:35:58,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 44 [2021-11-06 11:35:58,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:35:58,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:35:58,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:35:58,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:35:58,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:35:58,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:35:58,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 54 treesize of output 44 [2021-11-06 11:35:58,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:35:58,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:35:58,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:35:58,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:35:58,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:35:58,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:35:58,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 50 treesize of output 44 [2021-11-06 11:35:59,422 INFO L354 Elim1Store]: treesize reduction 21, result has 16.0 percent of original size [2021-11-06 11:35:59,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 21 treesize of output 19 [2021-11-06 11:35:59,751 INFO L354 Elim1Store]: treesize reduction 78, result has 22.0 percent of original size [2021-11-06 11:35:59,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 6 case distinctions, treesize of input 46 treesize of output 51 [2021-11-06 11:36:11,521 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-06 11:36:11,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 42 treesize of output 47 [2021-11-06 11:36:18,892 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-11-06 11:36:18,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 69 treesize of output 41 [2021-11-06 11:36:19,452 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 11:36:19,453 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-06 11:36:19,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215838050] [2021-11-06 11:36:19,453 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-06 11:36:19,453 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1054277819] [2021-11-06 11:36:19,453 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1054277819] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-06 11:36:19,453 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-06 11:36:19,453 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-11-06 11:36:19,453 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125804368] [2021-11-06 11:36:19,453 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-06 11:36:19,453 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-06 11:36:19,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-06 11:36:19,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=473, Unknown=3, NotChecked=0, Total=552 [2021-11-06 11:36:19,454 INFO L87 Difference]: Start difference. First operand 583 states and 684 transitions. Second operand has 24 states, 24 states have (on average 3.875) internal successors, (93), 24 states have internal predecessors, (93), 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 11:37:29,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-06 11:37:29,402 INFO L93 Difference]: Finished difference Result 1210 states and 1427 transitions. [2021-11-06 11:37:29,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-11-06 11:37:29,403 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.875) internal successors, (93), 24 states have internal predecessors, (93), 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 93 [2021-11-06 11:37:29,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-06 11:37:29,405 INFO L225 Difference]: With dead ends: 1210 [2021-11-06 11:37:29,405 INFO L226 Difference]: Without dead ends: 1015 [2021-11-06 11:37:29,406 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 436 ImplicationChecksByTransitivity, 50.1s TimeCoverageRelationStatistics Valid=206, Invalid=1270, Unknown=6, NotChecked=0, Total=1482 [2021-11-06 11:37:29,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1015 states. [2021-11-06 11:37:29,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1015 to 640. [2021-11-06 11:37:29,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 640 states, 625 states have (on average 1.208) internal successors, (755), 639 states have internal predecessors, (755), 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 11:37:29,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 640 states to 640 states and 755 transitions. [2021-11-06 11:37:29,439 INFO L78 Accepts]: Start accepts. Automaton has 640 states and 755 transitions. Word has length 93 [2021-11-06 11:37:29,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-06 11:37:29,439 INFO L470 AbstractCegarLoop]: Abstraction has 640 states and 755 transitions. [2021-11-06 11:37:29,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.875) internal successors, (93), 24 states have internal predecessors, (93), 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 11:37:29,439 INFO L276 IsEmpty]: Start isEmpty. Operand 640 states and 755 transitions. [2021-11-06 11:37:29,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2021-11-06 11:37:29,440 INFO L505 BasicCegarLoop]: Found error trace [2021-11-06 11:37:29,440 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:37:29,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-06 11:37:29,667 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 [2021-11-06 11:37:29,667 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 12 more)] === [2021-11-06 11:37:29,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-06 11:37:29,668 INFO L85 PathProgramCache]: Analyzing trace with hash 821863778, now seen corresponding path program 1 times [2021-11-06 11:37:29,668 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-06 11:37:29,668 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008038374] [2021-11-06 11:37:29,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:37:29,668 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-06 11:37:29,726 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-06 11:37:29,726 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1055045887] [2021-11-06 11:37:29,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-06 11:37:29,727 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-06 11:37:29,727 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-06 11:37:29,728 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) [2021-11-06 11:37:29,743 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-06 11:40:07,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-06 11:40:07,495 INFO L263 TraceCheckSpWp]: Trace formula consists of 2928 conjuncts, 319 conjunts are in the unsatisfiable core [2021-11-06 11:40:07,500 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-06 11:40:07,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-11-06 11:40:08,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:08,382 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 23 treesize of output 22 [2021-11-06 11:40:08,409 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:08,410 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 23 treesize of output 22 [2021-11-06 11:40:09,037 INFO L354 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2021-11-06 11:40:09,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 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 [2021-11-06 11:40:09,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:09,241 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 23 treesize of output 22 [2021-11-06 11:40:09,278 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:09,279 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 35 treesize of output 34 [2021-11-06 11:40:09,798 INFO L354 Elim1Store]: treesize reduction 56, result has 25.3 percent of original size [2021-11-06 11:40:09,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 76 treesize of output 66 [2021-11-06 11:40:09,845 INFO L354 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2021-11-06 11:40:09,845 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 65 treesize of output 64 [2021-11-06 11:40:10,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2021-11-06 11:40:10,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:10,069 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 [2021-11-06 11:40:10,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:10,148 INFO L354 Elim1Store]: treesize reduction 35, result has 20.5 percent of original size [2021-11-06 11:40:10,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 56 treesize of output 46 [2021-11-06 11:40:11,175 INFO L354 Elim1Store]: treesize reduction 168, result has 17.6 percent of original size [2021-11-06 11:40:11,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 10 case distinctions, treesize of input 66 treesize of output 83 [2021-11-06 11:40:11,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:11,994 INFO L354 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2021-11-06 11:40:11,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 84 treesize of output 60 [2021-11-06 11:40:12,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:12,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:12,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 28 [2021-11-06 11:40:12,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:12,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2021-11-06 11:40:15,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:15,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 130 treesize of output 108 [2021-11-06 11:40:15,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:15,407 INFO L354 Elim1Store]: treesize reduction 22, result has 4.3 percent of original size [2021-11-06 11:40:15,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 94 treesize of output 48 [2021-11-06 11:40:20,003 INFO L354 Elim1Store]: treesize reduction 86, result has 18.9 percent of original size [2021-11-06 11:40:20,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 162 treesize of output 172 [2021-11-06 11:40:26,823 INFO L354 Elim1Store]: treesize reduction 238, result has 15.0 percent of original size [2021-11-06 11:40:26,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 1 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 103 treesize of output 128 [2021-11-06 11:40:35,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:35,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:35,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:35,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:35,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:35,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-11-06 11:40:35,949 INFO L354 Elim1Store]: treesize reduction 19, result has 44.1 percent of original size [2021-11-06 11:40:35,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 111 treesize of output 117 [2021-11-06 11:41:04,164 INFO L354 Elim1Store]: treesize reduction 112, result has 28.7 percent of original size [2021-11-06 11:41:04,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 99 treesize of output 132 [2021-11-06 11:41:43,187 INFO L354 Elim1Store]: treesize reduction 235, result has 25.4 percent of original size [2021-11-06 11:41:43,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 21 case distinctions, treesize of input 95 treesize of output 158 Killed by 15