./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4d014703 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/uthash-2.0.2/uthash_JEN_test5-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-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 32bit --witnessprinter.graph.data.programhash 3a97724240a87192496d8328468f54cf5b25ba6881d4dae32505036169c4a273 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-03 05:45:55,173 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 05:45:55,175 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 05:45:55,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 05:45:55,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 05:45:55,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 05:45:55,216 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 05:45:55,218 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 05:45:55,220 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 05:45:55,223 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 05:45:55,223 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 05:45:55,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 05:45:55,225 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 05:45:55,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 05:45:55,227 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 05:45:55,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 05:45:55,231 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 05:45:55,231 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 05:45:55,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 05:45:55,237 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 05:45:55,238 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 05:45:55,239 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 05:45:55,240 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 05:45:55,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 05:45:55,245 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 05:45:55,245 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 05:45:55,245 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 05:45:55,246 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 05:45:55,246 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 05:45:55,247 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 05:45:55,247 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 05:45:55,248 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 05:45:55,249 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 05:45:55,250 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 05:45:55,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 05:45:55,251 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 05:45:55,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 05:45:55,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 05:45:55,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 05:45:55,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 05:45:55,252 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 05:45:55,254 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-03 05:45:55,283 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 05:45:55,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 05:45:55,284 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 05:45:55,284 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 05:45:55,285 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 05:45:55,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 05:45:55,286 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 05:45:55,286 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 05:45:55,286 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 05:45:55,286 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 05:45:55,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 05:45:55,287 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 05:45:55,287 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 05:45:55,287 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 05:45:55,287 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 05:45:55,287 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 05:45:55,287 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 05:45:55,288 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 05:45:55,288 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 05:45:55,288 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 05:45:55,288 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 05:45:55,288 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 05:45:55,288 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:45:55,288 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 05:45:55,289 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 05:45:55,289 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 05:45:55,289 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-03 05:45:55,289 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 05:45:55,289 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 05:45:55,289 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 05:45:55,289 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 05:45:55,290 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 05:45:55,290 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a97724240a87192496d8328468f54cf5b25ba6881d4dae32505036169c4a273 [2021-11-03 05:45:55,473 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 05:45:55,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 05:45:55,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 05:45:55,492 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 05:45:55,493 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 05:45:55,493 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i [2021-11-03 05:45:55,548 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/162eeb475/62d10c7f9eac42f094e168ef4218de40/FLAGf8c4fc1c1 [2021-11-03 05:45:56,065 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 05:45:56,065 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_JEN_test5-1.i [2021-11-03 05:45:56,082 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/162eeb475/62d10c7f9eac42f094e168ef4218de40/FLAGf8c4fc1c1 [2021-11-03 05:45:56,570 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/162eeb475/62d10c7f9eac42f094e168ef4218de40 [2021-11-03 05:45:56,572 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 05:45:56,573 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 05:45:56,574 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 05:45:56,575 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 05:45:56,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 05:45:56,577 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:45:56" (1/1) ... [2021-11-03 05:45:56,578 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@148babd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:45:56, skipping insertion in model container [2021-11-03 05:45:56,578 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 05:45:56" (1/1) ... [2021-11-03 05:45:56,583 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 05:45:56,622 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 05:45:56,923 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/uthash-2.0.2/uthash_JEN_test5-1.i[33021,33034] [2021-11-03 05:45:57,020 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/uthash-2.0.2/uthash_JEN_test5-1.i[49681,49694] [2021-11-03 05:45:57,031 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:45:57,056 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 05:45:57,085 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/uthash-2.0.2/uthash_JEN_test5-1.i[33021,33034] [2021-11-03 05:45:57,162 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/uthash-2.0.2/uthash_JEN_test5-1.i[49681,49694] [2021-11-03 05:45:57,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 05:45:57,198 INFO L208 MainTranslator]: Completed translation [2021-11-03 05:45:57,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:45:57 WrapperNode [2021-11-03 05:45:57,198 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 05:45:57,199 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 05:45:57,199 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 05:45:57,199 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 05:45:57,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:45:57" (1/1) ... [2021-11-03 05:45:57,250 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:45:57" (1/1) ... [2021-11-03 05:45:57,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 05:45:57,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 05:45:57,313 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 05:45:57,313 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 05:45:57,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:45:57" (1/1) ... [2021-11-03 05:45:57,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:45:57" (1/1) ... [2021-11-03 05:45:57,328 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:45:57" (1/1) ... [2021-11-03 05:45:57,329 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:45:57" (1/1) ... [2021-11-03 05:45:57,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:45:57" (1/1) ... [2021-11-03 05:45:57,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:45:57" (1/1) ... [2021-11-03 05:45:57,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:45:57" (1/1) ... [2021-11-03 05:45:57,421 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 05:45:57,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 05:45:57,422 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 05:45:57,423 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 05:45:57,424 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:45:57" (1/1) ... [2021-11-03 05:45:57,429 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 05:45:57,436 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:45:57,452 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) [2021-11-03 05:45:57,471 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 [2021-11-03 05:45:57,488 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 05:45:57,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 05:45:57,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 05:45:57,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 05:45:57,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 05:45:57,489 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-03 05:45:57,489 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 05:45:57,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 05:45:57,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 05:45:57,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 05:45:57,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 05:45:58,109 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 05:45:58,110 INFO L299 CfgBuilder]: Removed 111 assume(true) statements. [2021-11-03 05:45:58,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:45:58 BoogieIcfgContainer [2021-11-03 05:45:58,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 05:45:58,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 05:45:58,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 05:45:58,117 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 05:45:58,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 05:45:56" (1/3) ... [2021-11-03 05:45:58,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e877a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:45:58, skipping insertion in model container [2021-11-03 05:45:58,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 05:45:57" (2/3) ... [2021-11-03 05:45:58,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e877a8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 05:45:58, skipping insertion in model container [2021-11-03 05:45:58,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 05:45:58" (3/3) ... [2021-11-03 05:45:58,120 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_JEN_test5-1.i [2021-11-03 05:45:58,125 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 05:45:58,125 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-03 05:45:58,170 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 05:45:58,175 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 [2021-11-03 05:45:58,175 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-03 05:45:58,199 INFO L276 IsEmpty]: Start isEmpty. Operand has 258 states, 251 states have (on average 1.7250996015936255) internal successors, (433), 257 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:45:58,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-03 05:45:58,204 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:45:58,205 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:45:58,205 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:45:58,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:45:58,209 INFO L85 PathProgramCache]: Analyzing trace with hash 889803109, now seen corresponding path program 1 times [2021-11-03 05:45:58,215 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:45:58,215 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352415687] [2021-11-03 05:45:58,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:45:58,216 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:45:58,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:45:58,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:45:58,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:45:58,367 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352415687] [2021-11-03 05:45:58,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [352415687] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:45:58,367 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:45:58,368 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 05:45:58,369 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1354049129] [2021-11-03 05:45:58,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 05:45:58,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:45:58,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 05:45:58,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:45:58,404 INFO L87 Difference]: Start difference. First operand has 258 states, 251 states have (on average 1.7250996015936255) internal successors, (433), 257 states have internal predecessors, (433), 0 states have call successors, (0), 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 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:45:58,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:45:58,982 INFO L93 Difference]: Finished difference Result 514 states and 864 transitions. [2021-11-03 05:45:58,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 05:45:58,984 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 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 8 [2021-11-03 05:45:58,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:45:58,992 INFO L225 Difference]: With dead ends: 514 [2021-11-03 05:45:58,994 INFO L226 Difference]: Without dead ends: 254 [2021-11-03 05:45:58,997 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.03ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 05:45:59,000 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 337 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 412.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.54ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 527.25ms IncrementalHoareTripleChecker+Time [2021-11-03 05:45:59,001 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 337 Unknown, 0 Unchecked, 2.54ms Time], IncrementalHoareTripleChecker [0 Valid, 337 Invalid, 0 Unknown, 0 Unchecked, 527.25ms Time] [2021-11-03 05:45:59,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-11-03 05:45:59,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2021-11-03 05:45:59,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 248 states have (on average 1.342741935483871) internal successors, (333), 253 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:45:59,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 333 transitions. [2021-11-03 05:45:59,042 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 333 transitions. Word has length 8 [2021-11-03 05:45:59,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:45:59,043 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 333 transitions. [2021-11-03 05:45:59,043 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:45:59,043 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 333 transitions. [2021-11-03 05:45:59,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-03 05:45:59,044 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:45:59,045 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:45:59,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 05:45:59,045 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:45:59,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:45:59,046 INFO L85 PathProgramCache]: Analyzing trace with hash -680083191, now seen corresponding path program 1 times [2021-11-03 05:45:59,046 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:45:59,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313398064] [2021-11-03 05:45:59,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:45:59,046 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:45:59,067 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:45:59,068 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1760460004] [2021-11-03 05:45:59,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:45:59,068 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:45:59,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:45:59,072 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) [2021-11-03 05:45:59,073 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-03 05:45:59,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:45:59,208 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 05:45:59,214 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:45:59,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:45:59,317 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 05:45:59,318 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:45:59,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313398064] [2021-11-03 05:45:59,318 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:45:59,318 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1760460004] [2021-11-03 05:45:59,318 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1760460004] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:45:59,319 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:45:59,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 05:45:59,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693196981] [2021-11-03 05:45:59,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:45:59,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:45:59,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:45:59,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:45:59,321 INFO L87 Difference]: Start difference. First operand 254 states and 333 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:00,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:00,237 INFO L93 Difference]: Finished difference Result 587 states and 769 transitions. [2021-11-03 05:46:00,237 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:46:00,238 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2021-11-03 05:46:00,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:00,240 INFO L225 Difference]: With dead ends: 587 [2021-11-03 05:46:00,240 INFO L226 Difference]: Without dead ends: 505 [2021-11-03 05:46:00,241 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.69ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:46:00,241 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 327 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 730.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 4.50ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 884.21ms IncrementalHoareTripleChecker+Time [2021-11-03 05:46:00,242 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [327 Valid, 0 Invalid, 665 Unknown, 0 Unchecked, 4.50ms Time], IncrementalHoareTripleChecker [1 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 884.21ms Time] [2021-11-03 05:46:00,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2021-11-03 05:46:00,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 255. [2021-11-03 05:46:00,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 249 states have (on average 1.3413654618473896) internal successors, (334), 254 states have internal predecessors, (334), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:00,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 334 transitions. [2021-11-03 05:46:00,273 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 334 transitions. Word has length 42 [2021-11-03 05:46:00,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:00,273 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 334 transitions. [2021-11-03 05:46:00,273 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:00,274 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 334 transitions. [2021-11-03 05:46:00,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-03 05:46:00,279 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:46:00,279 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:00,297 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-11-03 05:46:00,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:46:00,492 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:46:00,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:00,492 INFO L85 PathProgramCache]: Analyzing trace with hash 1837409632, now seen corresponding path program 1 times [2021-11-03 05:46:00,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:46:00,493 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895371918] [2021-11-03 05:46:00,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:00,493 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:46:00,507 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:46:00,507 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [741390083] [2021-11-03 05:46:00,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:00,508 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:46:00,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:46:00,509 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) [2021-11-03 05:46:00,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-03 05:46:00,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:46:00,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:46:00,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:00,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:46:00,895 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 05:46:00,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:46:00,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895371918] [2021-11-03 05:46:00,895 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:46:00,895 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741390083] [2021-11-03 05:46:00,896 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741390083] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:46:00,896 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:46:00,896 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 05:46:00,896 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850340600] [2021-11-03 05:46:00,897 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:46:00,897 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:46:00,897 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:46:00,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:46:00,898 INFO L87 Difference]: Start difference. First operand 255 states and 334 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:01,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:01,605 INFO L93 Difference]: Finished difference Result 528 states and 696 transitions. [2021-11-03 05:46:01,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:46:01,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2021-11-03 05:46:01,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:01,607 INFO L225 Difference]: With dead ends: 528 [2021-11-03 05:46:01,607 INFO L226 Difference]: Without dead ends: 276 [2021-11-03 05:46:01,608 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.66ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:46:01,609 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 571.85ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.15ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 685.88ms IncrementalHoareTripleChecker+Time [2021-11-03 05:46:01,609 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 683 Unknown, 0 Unchecked, 2.15ms Time], IncrementalHoareTripleChecker [28 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 685.88ms Time] [2021-11-03 05:46:01,610 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-11-03 05:46:01,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 275. [2021-11-03 05:46:01,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 269 states have (on average 1.3159851301115242) internal successors, (354), 274 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:01,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 354 transitions. [2021-11-03 05:46:01,620 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 354 transitions. Word has length 140 [2021-11-03 05:46:01,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:01,620 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 354 transitions. [2021-11-03 05:46:01,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:01,621 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 354 transitions. [2021-11-03 05:46:01,624 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-03 05:46:01,627 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:46:01,628 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:01,662 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-11-03 05:46:01,843 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-11-03 05:46:01,844 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:46:01,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:01,844 INFO L85 PathProgramCache]: Analyzing trace with hash -1273244828, now seen corresponding path program 1 times [2021-11-03 05:46:01,844 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:46:01,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2038663677] [2021-11-03 05:46:01,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:01,845 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:46:01,858 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:46:01,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1823436861] [2021-11-03 05:46:01,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:01,859 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:46:01,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:46:01,860 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) [2021-11-03 05:46:01,862 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-11-03 05:46:02,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:46:02,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:46:02,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:02,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:46:02,246 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 05:46:02,246 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:46:02,246 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2038663677] [2021-11-03 05:46:02,246 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:46:02,247 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823436861] [2021-11-03 05:46:02,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823436861] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:46:02,247 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:46:02,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 05:46:02,247 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023349316] [2021-11-03 05:46:02,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:46:02,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:46:02,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:46:02,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:46:02,249 INFO L87 Difference]: Start difference. First operand 275 states and 354 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:02,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:02,784 INFO L93 Difference]: Finished difference Result 568 states and 736 transitions. [2021-11-03 05:46:02,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:46:02,785 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2021-11-03 05:46:02,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:02,786 INFO L225 Difference]: With dead ends: 568 [2021-11-03 05:46:02,786 INFO L226 Difference]: Without dead ends: 296 [2021-11-03 05:46:02,787 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.49ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:46:02,788 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 422.02ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.65ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 520.38ms IncrementalHoareTripleChecker+Time [2021-11-03 05:46:02,788 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 683 Unknown, 0 Unchecked, 1.65ms Time], IncrementalHoareTripleChecker [28 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 520.38ms Time] [2021-11-03 05:46:02,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2021-11-03 05:46:02,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 295. [2021-11-03 05:46:02,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 295 states, 289 states have (on average 1.2941176470588236) internal successors, (374), 294 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:02,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 374 transitions. [2021-11-03 05:46:02,793 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 374 transitions. Word has length 140 [2021-11-03 05:46:02,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:02,794 INFO L470 AbstractCegarLoop]: Abstraction has 295 states and 374 transitions. [2021-11-03 05:46:02,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:02,794 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 374 transitions. [2021-11-03 05:46:02,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-03 05:46:02,796 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:46:02,796 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:02,814 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-11-03 05:46:03,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:46:03,012 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:46:03,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:03,013 INFO L85 PathProgramCache]: Analyzing trace with hash -882913824, now seen corresponding path program 1 times [2021-11-03 05:46:03,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:46:03,013 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360868540] [2021-11-03 05:46:03,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:03,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:46:03,046 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:46:03,046 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1181963568] [2021-11-03 05:46:03,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:03,047 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:46:03,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:46:03,052 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) [2021-11-03 05:46:03,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-11-03 05:46:03,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:46:03,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:46:03,205 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:03,415 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 05:46:03,416 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 05:46:03,416 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:46:03,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360868540] [2021-11-03 05:46:03,416 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:46:03,416 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181963568] [2021-11-03 05:46:03,416 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181963568] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:46:03,417 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:46:03,417 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 05:46:03,417 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1166937636] [2021-11-03 05:46:03,417 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:46:03,417 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:46:03,418 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:46:03,418 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:46:03,418 INFO L87 Difference]: Start difference. First operand 295 states and 374 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:03,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:03,964 INFO L93 Difference]: Finished difference Result 397 states and 510 transitions. [2021-11-03 05:46:03,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:46:03,965 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2021-11-03 05:46:03,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:03,967 INFO L225 Difference]: With dead ends: 397 [2021-11-03 05:46:03,967 INFO L226 Difference]: Without dead ends: 316 [2021-11-03 05:46:03,968 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.19ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:46:03,968 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 440.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.78ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 531.14ms IncrementalHoareTripleChecker+Time [2021-11-03 05:46:03,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 683 Unknown, 0 Unchecked, 1.78ms Time], IncrementalHoareTripleChecker [28 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 531.14ms Time] [2021-11-03 05:46:03,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-11-03 05:46:03,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 315. [2021-11-03 05:46:03,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 309 states have (on average 1.2750809061488673) internal successors, (394), 314 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:03,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 394 transitions. [2021-11-03 05:46:03,974 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 394 transitions. Word has length 140 [2021-11-03 05:46:03,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:03,974 INFO L470 AbstractCegarLoop]: Abstraction has 315 states and 394 transitions. [2021-11-03 05:46:03,975 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:03,975 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 394 transitions. [2021-11-03 05:46:03,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-03 05:46:03,976 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:46:03,976 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:03,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-11-03 05:46:04,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:46:04,181 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:46:04,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:04,182 INFO L85 PathProgramCache]: Analyzing trace with hash 115522276, now seen corresponding path program 1 times [2021-11-03 05:46:04,182 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:46:04,184 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501480939] [2021-11-03 05:46:04,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:04,184 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:46:04,198 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:46:04,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1758321196] [2021-11-03 05:46:04,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:04,201 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:46:04,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:46:04,202 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) [2021-11-03 05:46:04,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-11-03 05:46:04,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:46:04,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:46:04,361 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:04,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:46:04,524 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 05:46:04,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:46:04,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501480939] [2021-11-03 05:46:04,525 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:46:04,525 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1758321196] [2021-11-03 05:46:04,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1758321196] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:46:04,525 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:46:04,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 05:46:04,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496816590] [2021-11-03 05:46:04,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:46:04,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:46:04,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:46:04,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:46:04,527 INFO L87 Difference]: Start difference. First operand 315 states and 394 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:05,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:05,195 INFO L93 Difference]: Finished difference Result 619 states and 777 transitions. [2021-11-03 05:46:05,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:46:05,195 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2021-11-03 05:46:05,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:05,196 INFO L225 Difference]: With dead ends: 619 [2021-11-03 05:46:05,197 INFO L226 Difference]: Without dead ends: 307 [2021-11-03 05:46:05,197 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.45ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:46:05,200 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 321 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 524.16ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.56ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 634.41ms IncrementalHoareTripleChecker+Time [2021-11-03 05:46:05,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [321 Valid, 0 Invalid, 685 Unknown, 0 Unchecked, 2.56ms Time], IncrementalHoareTripleChecker [24 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 634.41ms Time] [2021-11-03 05:46:05,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-11-03 05:46:05,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 301. [2021-11-03 05:46:05,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301 states, 295 states have (on average 1.264406779661017) internal successors, (373), 300 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:05,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 373 transitions. [2021-11-03 05:46:05,207 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 373 transitions. Word has length 140 [2021-11-03 05:46:05,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:05,208 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 373 transitions. [2021-11-03 05:46:05,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:05,208 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 373 transitions. [2021-11-03 05:46:05,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-03 05:46:05,209 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:46:05,209 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:05,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-11-03 05:46:05,419 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:46:05,419 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:46:05,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:05,420 INFO L85 PathProgramCache]: Analyzing trace with hash 32737814, now seen corresponding path program 1 times [2021-11-03 05:46:05,421 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:46:05,421 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511570745] [2021-11-03 05:46:05,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:05,421 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:46:05,438 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:46:05,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1728209820] [2021-11-03 05:46:05,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:05,438 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:46:05,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:46:05,440 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) [2021-11-03 05:46:05,441 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-11-03 05:46:05,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:46:05,587 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:46:05,589 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:05,758 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:46:05,758 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 05:46:05,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:46:05,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511570745] [2021-11-03 05:46:05,759 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:46:05,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1728209820] [2021-11-03 05:46:05,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1728209820] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:46:05,759 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:46:05,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 05:46:05,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865605415] [2021-11-03 05:46:05,761 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:46:05,761 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:46:05,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:46:05,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:46:05,762 INFO L87 Difference]: Start difference. First operand 301 states and 373 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:07,411 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 05:46:07,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:07,926 INFO L93 Difference]: Finished difference Result 680 states and 844 transitions. [2021-11-03 05:46:07,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:46:07,926 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2021-11-03 05:46:07,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:07,927 INFO L225 Difference]: With dead ends: 680 [2021-11-03 05:46:07,928 INFO L226 Difference]: Without dead ends: 382 [2021-11-03 05:46:07,928 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 6.30ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:46:07,928 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 314 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1972.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.17ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2128.68ms IncrementalHoareTripleChecker+Time [2021-11-03 05:46:07,929 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [314 Valid, 0 Invalid, 980 Unknown, 0 Unchecked, 3.17ms Time], IncrementalHoareTripleChecker [24 Valid, 956 Invalid, 0 Unknown, 0 Unchecked, 2128.68ms Time] [2021-11-03 05:46:07,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2021-11-03 05:46:07,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 287. [2021-11-03 05:46:07,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 281 states have (on average 1.2526690391459074) internal successors, (352), 286 states have internal predecessors, (352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:07,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 352 transitions. [2021-11-03 05:46:07,935 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 352 transitions. Word has length 140 [2021-11-03 05:46:07,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:07,936 INFO L470 AbstractCegarLoop]: Abstraction has 287 states and 352 transitions. [2021-11-03 05:46:07,936 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:07,936 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 352 transitions. [2021-11-03 05:46:07,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-03 05:46:07,937 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:46:07,937 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:07,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-11-03 05:46:08,150 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:46:08,150 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:46:08,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:08,151 INFO L85 PathProgramCache]: Analyzing trace with hash -577227484, now seen corresponding path program 1 times [2021-11-03 05:46:08,151 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:46:08,151 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319629560] [2021-11-03 05:46:08,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:08,151 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:46:08,162 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:46:08,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [698338088] [2021-11-03 05:46:08,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:08,162 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:46:08,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:46:08,163 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) [2021-11-03 05:46:08,164 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-11-03 05:46:08,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:46:08,315 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:46:08,317 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:08,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-11-03 05:46:08,467 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 05:46:08,467 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:46:08,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319629560] [2021-11-03 05:46:08,467 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:46:08,467 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698338088] [2021-11-03 05:46:08,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698338088] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:46:08,468 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:46:08,468 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 05:46:08,468 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328721152] [2021-11-03 05:46:08,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 05:46:08,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:46:08,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 05:46:08,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 05:46:08,469 INFO L87 Difference]: Start difference. First operand 287 states and 352 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:09,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:09,265 INFO L93 Difference]: Finished difference Result 379 states and 468 transitions. [2021-11-03 05:46:09,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 05:46:09,266 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 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 140 [2021-11-03 05:46:09,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:09,267 INFO L225 Difference]: With dead ends: 379 [2021-11-03 05:46:09,267 INFO L226 Difference]: Without dead ends: 278 [2021-11-03 05:46:09,267 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.80ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 05:46:09,268 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 95 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 660.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.41ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 773.61ms IncrementalHoareTripleChecker+Time [2021-11-03 05:46:09,268 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 0 Invalid, 863 Unknown, 0 Unchecked, 2.41ms Time], IncrementalHoareTripleChecker [24 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 773.61ms Time] [2021-11-03 05:46:09,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-11-03 05:46:09,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 273. [2021-11-03 05:46:09,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 267 states have (on average 1.2397003745318351) internal successors, (331), 272 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:09,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 331 transitions. [2021-11-03 05:46:09,273 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 331 transitions. Word has length 140 [2021-11-03 05:46:09,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:09,274 INFO L470 AbstractCegarLoop]: Abstraction has 273 states and 331 transitions. [2021-11-03 05:46:09,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:09,274 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 331 transitions. [2021-11-03 05:46:09,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-03 05:46:09,275 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:46:09,275 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:09,292 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2021-11-03 05:46:09,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:46:09,492 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:46:09,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:09,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1460076330, now seen corresponding path program 1 times [2021-11-03 05:46:09,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:46:09,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663297045] [2021-11-03 05:46:09,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:09,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:46:09,503 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:46:09,503 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [869532629] [2021-11-03 05:46:09,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:09,504 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:46:09,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:46:09,505 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) [2021-11-03 05:46:09,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-11-03 05:46:09,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:46:09,656 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:46:09,658 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:09,886 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:46:09,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:46:10,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:46:10,137 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:46:10,137 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663297045] [2021-11-03 05:46:10,138 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:46:10,138 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [869532629] [2021-11-03 05:46:10,138 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [869532629] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:46:10,138 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 05:46:10,138 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-11-03 05:46:10,143 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [814697964] [2021-11-03 05:46:10,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 05:46:10,144 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:46:10,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 05:46:10,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:46:10,146 INFO L87 Difference]: Start difference. First operand 273 states and 331 transitions. Second operand has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:11,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:11,906 INFO L93 Difference]: Finished difference Result 1081 states and 1313 transitions. [2021-11-03 05:46:11,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:46:11,906 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 0 states have call successors, (0), 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 140 [2021-11-03 05:46:11,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:11,909 INFO L225 Difference]: With dead ends: 1081 [2021-11-03 05:46:11,909 INFO L226 Difference]: Without dead ends: 993 [2021-11-03 05:46:11,910 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.78ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:46:11,910 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 1335 mSDsluCounter, 816 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1457.81ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 1335 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.31ms SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1705.26ms IncrementalHoareTripleChecker+Time [2021-11-03 05:46:11,910 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1335 Valid, 0 Invalid, 1154 Unknown, 0 Unchecked, 5.31ms Time], IncrementalHoareTripleChecker [8 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 1705.26ms Time] [2021-11-03 05:46:11,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2021-11-03 05:46:11,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 819. [2021-11-03 05:46:11,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 819 states, 813 states have (on average 1.2263222632226323) internal successors, (997), 818 states have internal predecessors, (997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:11,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 997 transitions. [2021-11-03 05:46:11,931 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 997 transitions. Word has length 140 [2021-11-03 05:46:11,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:11,931 INFO L470 AbstractCegarLoop]: Abstraction has 819 states and 997 transitions. [2021-11-03 05:46:11,932 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.0) internal successors, (240), 6 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:11,932 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 997 transitions. [2021-11-03 05:46:11,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2021-11-03 05:46:11,936 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:46:11,937 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:11,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-11-03 05:46:12,161 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,SelfDestructingSolverStorable8 [2021-11-03 05:46:12,162 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:46:12,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:12,162 INFO L85 PathProgramCache]: Analyzing trace with hash 1752556443, now seen corresponding path program 2 times [2021-11-03 05:46:12,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:46:12,162 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326342936] [2021-11-03 05:46:12,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:12,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:46:12,184 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:46:12,185 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1112210850] [2021-11-03 05:46:12,185 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 05:46:12,185 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:46:12,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:46:12,186 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) [2021-11-03 05:46:12,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-11-03 05:46:12,449 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 05:46:12,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:46:12,456 INFO L263 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 05:46:12,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:13,226 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 0 proven. 592 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:46:13,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:46:14,021 INFO L134 CoverageAnalysis]: Checked inductivity of 592 backedges. 0 proven. 592 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 05:46:14,022 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:46:14,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326342936] [2021-11-03 05:46:14,022 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:46:14,022 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112210850] [2021-11-03 05:46:14,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112210850] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:46:14,022 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 05:46:14,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-11-03 05:46:14,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [821679598] [2021-11-03 05:46:14,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 05:46:14,024 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:46:14,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 05:46:14,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:46:14,025 INFO L87 Difference]: Start difference. First operand 819 states and 997 transitions. Second operand has 12 states, 12 states have (on average 69.0) internal successors, (828), 12 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:18,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:18,044 INFO L93 Difference]: Finished difference Result 2434 states and 2960 transitions. [2021-11-03 05:46:18,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 05:46:18,045 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 69.0) internal successors, (828), 12 states have internal predecessors, (828), 0 states have call successors, (0), 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 434 [2021-11-03 05:46:18,046 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:18,052 INFO L225 Difference]: With dead ends: 2434 [2021-11-03 05:46:18,052 INFO L226 Difference]: Without dead ends: 2346 [2021-11-03 05:46:18,053 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 866 GetRequests, 856 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 49.68ms TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:46:18,054 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4597 mSDsluCounter, 2634 mSDsCounter, 0 mSdLazyCounter, 2994 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3251.84ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4597 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3015 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.04ms SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 2994 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3880.67ms IncrementalHoareTripleChecker+Time [2021-11-03 05:46:18,054 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4597 Valid, 0 Invalid, 3015 Unknown, 0 Unchecked, 12.04ms Time], IncrementalHoareTripleChecker [21 Valid, 2994 Invalid, 0 Unknown, 0 Unchecked, 3880.67ms Time] [2021-11-03 05:46:18,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2346 states. [2021-11-03 05:46:18,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2346 to 1911. [2021-11-03 05:46:18,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1911 states, 1905 states have (on average 1.2225721784776904) internal successors, (2329), 1910 states have internal predecessors, (2329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:18,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2329 transitions. [2021-11-03 05:46:18,097 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2329 transitions. Word has length 434 [2021-11-03 05:46:18,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:18,098 INFO L470 AbstractCegarLoop]: Abstraction has 1911 states and 2329 transitions. [2021-11-03 05:46:18,098 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 69.0) internal successors, (828), 12 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:18,099 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2329 transitions. [2021-11-03 05:46:18,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1023 [2021-11-03 05:46:18,114 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:46:18,115 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:18,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-11-03 05:46:18,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-11-03 05:46:18,338 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:46:18,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:18,338 INFO L85 PathProgramCache]: Analyzing trace with hash -675748379, now seen corresponding path program 3 times [2021-11-03 05:46:18,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:46:18,338 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1780253139] [2021-11-03 05:46:18,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:18,339 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:46:18,368 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:46:18,368 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1426411994] [2021-11-03 05:46:18,368 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 05:46:18,368 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:46:18,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:46:18,369 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) [2021-11-03 05:46:18,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-11-03 05:46:18,613 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-03 05:46:18,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:46:18,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:46:18,626 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:22,190 INFO L134 CoverageAnalysis]: Checked inductivity of 4420 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 4275 trivial. 0 not checked. [2021-11-03 05:46:22,191 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 05:46:22,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:46:22,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1780253139] [2021-11-03 05:46:22,191 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:46:22,191 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1426411994] [2021-11-03 05:46:22,191 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1426411994] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:46:22,191 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:46:22,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 05:46:22,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1946925877] [2021-11-03 05:46:22,192 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:46:22,192 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:46:22,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:46:22,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:46:22,193 INFO L87 Difference]: Start difference. First operand 1911 states and 2329 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:22,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:22,813 INFO L93 Difference]: Finished difference Result 3746 states and 4565 transitions. [2021-11-03 05:46:22,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:46:22,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 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 1022 [2021-11-03 05:46:22,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:22,818 INFO L225 Difference]: With dead ends: 3746 [2021-11-03 05:46:22,818 INFO L226 Difference]: Without dead ends: 1980 [2021-11-03 05:46:22,820 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1021 GetRequests, 1020 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.22ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:46:22,821 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 149 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 491.75ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.82ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 595.00ms IncrementalHoareTripleChecker+Time [2021-11-03 05:46:22,822 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 0 Invalid, 656 Unknown, 0 Unchecked, 0.82ms Time], IncrementalHoareTripleChecker [3 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 595.00ms Time] [2021-11-03 05:46:22,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1980 states. [2021-11-03 05:46:22,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1980 to 1968. [2021-11-03 05:46:22,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1968 states, 1962 states have (on average 1.2237512742099899) internal successors, (2401), 1967 states have internal predecessors, (2401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:22,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1968 states to 1968 states and 2401 transitions. [2021-11-03 05:46:22,864 INFO L78 Accepts]: Start accepts. Automaton has 1968 states and 2401 transitions. Word has length 1022 [2021-11-03 05:46:22,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:22,864 INFO L470 AbstractCegarLoop]: Abstraction has 1968 states and 2401 transitions. [2021-11-03 05:46:22,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:22,865 INFO L276 IsEmpty]: Start isEmpty. Operand 1968 states and 2401 transitions. [2021-11-03 05:46:22,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1030 [2021-11-03 05:46:22,884 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:46:22,885 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:22,905 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-11-03 05:46:23,103 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,SelfDestructingSolverStorable10 [2021-11-03 05:46:23,103 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:46:23,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:23,104 INFO L85 PathProgramCache]: Analyzing trace with hash -680932187, now seen corresponding path program 1 times [2021-11-03 05:46:23,104 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:46:23,104 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389620939] [2021-11-03 05:46:23,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:23,104 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:46:23,136 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:46:23,136 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [245475632] [2021-11-03 05:46:23,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:23,137 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:46:23,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:46:23,138 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) [2021-11-03 05:46:23,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-11-03 05:46:23,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:46:23,674 INFO L263 TraceCheckSpWp]: Trace formula consists of 2633 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 05:46:23,682 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:24,897 INFO L134 CoverageAnalysis]: Checked inductivity of 4402 backedges. 748 proven. 0 refuted. 0 times theorem prover too weak. 3654 trivial. 0 not checked. [2021-11-03 05:46:24,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 05:46:24,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:46:24,897 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389620939] [2021-11-03 05:46:24,898 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:46:24,898 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [245475632] [2021-11-03 05:46:24,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [245475632] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:46:24,898 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:46:24,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 05:46:24,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477101593] [2021-11-03 05:46:24,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:46:24,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:46:24,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:46:24,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:46:24,900 INFO L87 Difference]: Start difference. First operand 1968 states and 2401 transitions. Second operand has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:25,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:25,626 INFO L93 Difference]: Finished difference Result 3924 states and 4823 transitions. [2021-11-03 05:46:25,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:46:25,627 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 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 1029 [2021-11-03 05:46:25,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:25,631 INFO L225 Difference]: With dead ends: 3924 [2021-11-03 05:46:25,631 INFO L226 Difference]: Without dead ends: 2008 [2021-11-03 05:46:25,633 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1028 GetRequests, 1027 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.89ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:46:25,633 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 599.73ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.76ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 703.95ms IncrementalHoareTripleChecker+Time [2021-11-03 05:46:25,634 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 626 Unknown, 0 Unchecked, 0.76ms Time], IncrementalHoareTripleChecker [6 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 703.95ms Time] [2021-11-03 05:46:25,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2021-11-03 05:46:25,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 2008. [2021-11-03 05:46:25,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2008 states, 2002 states have (on average 1.2192807192807193) internal successors, (2441), 2007 states have internal predecessors, (2441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:25,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 2441 transitions. [2021-11-03 05:46:25,661 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 2441 transitions. Word has length 1029 [2021-11-03 05:46:25,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:25,662 INFO L470 AbstractCegarLoop]: Abstraction has 2008 states and 2441 transitions. [2021-11-03 05:46:25,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.33333333333333) internal successors, (232), 3 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:25,662 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 2441 transitions. [2021-11-03 05:46:25,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1032 [2021-11-03 05:46:25,670 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:46:25,670 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:25,703 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-11-03 05:46:25,888 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,SelfDestructingSolverStorable11 [2021-11-03 05:46:25,888 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:46:25,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:25,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1832465830, now seen corresponding path program 1 times [2021-11-03 05:46:25,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:46:25,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561679430] [2021-11-03 05:46:25,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:25,889 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:46:25,914 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:46:25,915 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [485266472] [2021-11-03 05:46:25,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:25,915 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:46:25,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:46:25,916 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) [2021-11-03 05:46:25,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-11-03 05:46:26,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:46:26,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 2645 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 05:46:26,443 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:27,576 INFO L134 CoverageAnalysis]: Checked inductivity of 4404 backedges. 748 proven. 1 refuted. 0 times theorem prover too weak. 3655 trivial. 0 not checked. [2021-11-03 05:46:27,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:46:28,971 INFO L134 CoverageAnalysis]: Checked inductivity of 4404 backedges. 748 proven. 1 refuted. 0 times theorem prover too weak. 3655 trivial. 0 not checked. [2021-11-03 05:46:28,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:46:28,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561679430] [2021-11-03 05:46:28,972 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:46:28,972 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485266472] [2021-11-03 05:46:28,972 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485266472] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:46:28,972 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 05:46:28,972 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-11-03 05:46:28,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578370387] [2021-11-03 05:46:28,973 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 05:46:28,973 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:46:28,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 05:46:28,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:46:28,974 INFO L87 Difference]: Start difference. First operand 2008 states and 2441 transitions. Second operand has 6 states, 6 states have (on average 39.5) internal successors, (237), 6 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:29,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:29,570 INFO L93 Difference]: Finished difference Result 4083 states and 5062 transitions. [2021-11-03 05:46:29,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 05:46:29,570 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 39.5) internal successors, (237), 6 states have internal predecessors, (237), 0 states have call successors, (0), 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 1031 [2021-11-03 05:46:29,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:29,575 INFO L225 Difference]: With dead ends: 4083 [2021-11-03 05:46:29,575 INFO L226 Difference]: Without dead ends: 2128 [2021-11-03 05:46:29,577 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2060 GetRequests, 2056 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.67ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-03 05:46:29,577 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 632 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 458.94ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.85ms SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 632 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 553.81ms IncrementalHoareTripleChecker+Time [2021-11-03 05:46:29,577 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 675 Unknown, 0 Unchecked, 0.85ms Time], IncrementalHoareTripleChecker [43 Valid, 632 Invalid, 0 Unknown, 0 Unchecked, 553.81ms Time] [2021-11-03 05:46:29,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2128 states. [2021-11-03 05:46:29,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2128 to 2128. [2021-11-03 05:46:29,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2128 states, 2122 states have (on average 1.206880301602262) internal successors, (2561), 2127 states have internal predecessors, (2561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:29,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 2561 transitions. [2021-11-03 05:46:29,607 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 2561 transitions. Word has length 1031 [2021-11-03 05:46:29,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:29,608 INFO L470 AbstractCegarLoop]: Abstraction has 2128 states and 2561 transitions. [2021-11-03 05:46:29,608 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.5) internal successors, (237), 6 states have internal predecessors, (237), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:29,608 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 2561 transitions. [2021-11-03 05:46:29,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1038 [2021-11-03 05:46:29,616 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:46:29,617 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:29,639 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-11-03 05:46:29,831 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,SelfDestructingSolverStorable12 [2021-11-03 05:46:29,832 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:46:29,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:29,832 INFO L85 PathProgramCache]: Analyzing trace with hash 262001125, now seen corresponding path program 2 times [2021-11-03 05:46:29,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:46:29,832 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326629130] [2021-11-03 05:46:29,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:29,832 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:46:29,857 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:46:29,857 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [463792417] [2021-11-03 05:46:29,858 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 05:46:29,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:46:29,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:46:29,859 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) [2021-11-03 05:46:29,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-11-03 05:46:30,378 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 05:46:30,378 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:46:30,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 2681 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 05:46:30,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:31,657 INFO L134 CoverageAnalysis]: Checked inductivity of 4422 backedges. 748 proven. 10 refuted. 0 times theorem prover too weak. 3664 trivial. 0 not checked. [2021-11-03 05:46:31,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:46:32,991 INFO L134 CoverageAnalysis]: Checked inductivity of 4422 backedges. 748 proven. 10 refuted. 0 times theorem prover too weak. 3664 trivial. 0 not checked. [2021-11-03 05:46:32,991 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:46:32,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326629130] [2021-11-03 05:46:32,991 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:46:32,991 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [463792417] [2021-11-03 05:46:32,991 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [463792417] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:46:32,991 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 05:46:32,992 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-11-03 05:46:32,992 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351954882] [2021-11-03 05:46:32,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 05:46:32,993 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:46:32,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 05:46:32,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:46:32,993 INFO L87 Difference]: Start difference. First operand 2128 states and 2561 transitions. Second operand has 12 states, 12 states have (on average 20.25) internal successors, (243), 12 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:34,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:34,001 INFO L93 Difference]: Finished difference Result 4440 states and 5539 transitions. [2021-11-03 05:46:34,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 05:46:34,002 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 20.25) internal successors, (243), 12 states have internal predecessors, (243), 0 states have call successors, (0), 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 1037 [2021-11-03 05:46:34,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:34,007 INFO L225 Difference]: With dead ends: 4440 [2021-11-03 05:46:34,007 INFO L226 Difference]: Without dead ends: 2368 [2021-11-03 05:46:34,009 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2072 GetRequests, 2062 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.69ms TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-03 05:46:34,010 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 1264 mSolverCounterSat, 104 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 793.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.98ms SdHoareTripleChecker+Time, 104 IncrementalHoareTripleChecker+Valid, 1264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 963.16ms IncrementalHoareTripleChecker+Time [2021-11-03 05:46:34,010 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 1368 Unknown, 0 Unchecked, 1.98ms Time], IncrementalHoareTripleChecker [104 Valid, 1264 Invalid, 0 Unknown, 0 Unchecked, 963.16ms Time] [2021-11-03 05:46:34,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2021-11-03 05:46:34,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 2368. [2021-11-03 05:46:34,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2368 states, 2362 states have (on average 1.1858594411515664) internal successors, (2801), 2367 states have internal predecessors, (2801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:34,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2368 states to 2368 states and 2801 transitions. [2021-11-03 05:46:34,052 INFO L78 Accepts]: Start accepts. Automaton has 2368 states and 2801 transitions. Word has length 1037 [2021-11-03 05:46:34,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:34,052 INFO L470 AbstractCegarLoop]: Abstraction has 2368 states and 2801 transitions. [2021-11-03 05:46:34,052 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 20.25) internal successors, (243), 12 states have internal predecessors, (243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:34,052 INFO L276 IsEmpty]: Start isEmpty. Operand 2368 states and 2801 transitions. [2021-11-03 05:46:34,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1050 [2021-11-03 05:46:34,061 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:46:34,062 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:34,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-11-03 05:46:34,275 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,SelfDestructingSolverStorable13 [2021-11-03 05:46:34,276 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:46:34,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:34,276 INFO L85 PathProgramCache]: Analyzing trace with hash -1261568571, now seen corresponding path program 3 times [2021-11-03 05:46:34,276 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:46:34,276 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080378006] [2021-11-03 05:46:34,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:34,276 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:46:34,305 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:46:34,306 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1001472299] [2021-11-03 05:46:34,306 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 05:46:34,306 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:46:34,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:46:34,307 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) [2021-11-03 05:46:34,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-11-03 05:46:34,549 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-03 05:46:34,549 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:46:34,552 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:46:34,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:37,813 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 566 proven. 0 refuted. 0 times theorem prover too weak. 3946 trivial. 0 not checked. [2021-11-03 05:46:37,813 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 05:46:37,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:46:37,814 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080378006] [2021-11-03 05:46:37,814 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:46:37,814 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001472299] [2021-11-03 05:46:37,814 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001472299] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:46:37,814 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:46:37,814 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 05:46:37,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670352375] [2021-11-03 05:46:37,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:46:37,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:46:37,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:46:37,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:46:37,816 INFO L87 Difference]: Start difference. First operand 2368 states and 2801 transitions. Second operand has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:38,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:38,521 INFO L93 Difference]: Finished difference Result 4658 states and 5516 transitions. [2021-11-03 05:46:38,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:46:38,522 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 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 1049 [2021-11-03 05:46:38,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:38,527 INFO L225 Difference]: With dead ends: 4658 [2021-11-03 05:46:38,527 INFO L226 Difference]: Without dead ends: 2366 [2021-11-03 05:46:38,528 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1048 GetRequests, 1047 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.63ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:46:38,529 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 19 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 580.51ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 613 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.75ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 667.64ms IncrementalHoareTripleChecker+Time [2021-11-03 05:46:38,529 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 0 Invalid, 613 Unknown, 0 Unchecked, 0.75ms Time], IncrementalHoareTripleChecker [1 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 667.64ms Time] [2021-11-03 05:46:38,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2021-11-03 05:46:38,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 2366. [2021-11-03 05:46:38,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2366 states, 2360 states have (on average 1.185593220338983) internal successors, (2798), 2365 states have internal predecessors, (2798), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:38,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2366 states to 2366 states and 2798 transitions. [2021-11-03 05:46:38,566 INFO L78 Accepts]: Start accepts. Automaton has 2366 states and 2798 transitions. Word has length 1049 [2021-11-03 05:46:38,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:38,566 INFO L470 AbstractCegarLoop]: Abstraction has 2366 states and 2798 transitions. [2021-11-03 05:46:38,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.66666666666667) internal successors, (215), 3 states have internal predecessors, (215), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:38,566 INFO L276 IsEmpty]: Start isEmpty. Operand 2366 states and 2798 transitions. [2021-11-03 05:46:38,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1077 [2021-11-03 05:46:38,575 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:46:38,575 INFO L514 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:38,593 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-11-03 05:46:38,793 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:46:38,794 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:46:38,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:38,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1857330421, now seen corresponding path program 1 times [2021-11-03 05:46:38,794 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:46:38,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545037681] [2021-11-03 05:46:38,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:38,795 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:46:38,819 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:46:38,819 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [307469241] [2021-11-03 05:46:38,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:38,820 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:46:38,820 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:46:38,821 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) [2021-11-03 05:46:38,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-11-03 05:46:39,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:46:39,397 INFO L263 TraceCheckSpWp]: Trace formula consists of 2957 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 05:46:39,404 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:40,684 INFO L134 CoverageAnalysis]: Checked inductivity of 4604 backedges. 325 proven. 55 refuted. 0 times theorem prover too weak. 4224 trivial. 0 not checked. [2021-11-03 05:46:40,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:46:42,196 INFO L134 CoverageAnalysis]: Checked inductivity of 4604 backedges. 325 proven. 55 refuted. 0 times theorem prover too weak. 4224 trivial. 0 not checked. [2021-11-03 05:46:42,196 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:46:42,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545037681] [2021-11-03 05:46:42,197 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:46:42,197 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [307469241] [2021-11-03 05:46:42,197 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [307469241] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:46:42,197 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 05:46:42,197 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-11-03 05:46:42,198 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005480694] [2021-11-03 05:46:42,198 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-03 05:46:42,198 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:46:42,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-03 05:46:42,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-03 05:46:42,199 INFO L87 Difference]: Start difference. First operand 2366 states and 2798 transitions. Second operand has 24 states, 24 states have (on average 9.166666666666666) internal successors, (220), 24 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:44,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:44,103 INFO L93 Difference]: Finished difference Result 5152 states and 6490 transitions. [2021-11-03 05:46:44,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-03 05:46:44,103 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 9.166666666666666) internal successors, (220), 24 states have internal predecessors, (220), 0 states have call successors, (0), 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 1076 [2021-11-03 05:46:44,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:44,110 INFO L225 Difference]: With dead ends: 5152 [2021-11-03 05:46:44,110 INFO L226 Difference]: Without dead ends: 2846 [2021-11-03 05:46:44,112 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2150 GetRequests, 2128 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 217.63ms TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-03 05:46:44,112 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 1616 mSolverCounterSat, 228 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1626.47ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1844 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.69ms SdHoareTripleChecker+Time, 228 IncrementalHoareTripleChecker+Valid, 1616 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1838.53ms IncrementalHoareTripleChecker+Time [2021-11-03 05:46:44,113 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 1844 Unknown, 0 Unchecked, 2.69ms Time], IncrementalHoareTripleChecker [228 Valid, 1616 Invalid, 0 Unknown, 0 Unchecked, 1838.53ms Time] [2021-11-03 05:46:44,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2021-11-03 05:46:44,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 2846. [2021-11-03 05:46:44,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2846 states, 2840 states have (on average 1.154225352112676) internal successors, (3278), 2845 states have internal predecessors, (3278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:44,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2846 states to 2846 states and 3278 transitions. [2021-11-03 05:46:44,176 INFO L78 Accepts]: Start accepts. Automaton has 2846 states and 3278 transitions. Word has length 1076 [2021-11-03 05:46:44,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:44,176 INFO L470 AbstractCegarLoop]: Abstraction has 2846 states and 3278 transitions. [2021-11-03 05:46:44,176 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 9.166666666666666) internal successors, (220), 24 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:44,176 INFO L276 IsEmpty]: Start isEmpty. Operand 2846 states and 3278 transitions. [2021-11-03 05:46:44,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1125 [2021-11-03 05:46:44,186 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:46:44,187 INFO L514 BasicCegarLoop]: trace histogram [22, 22, 22, 22, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:44,209 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-11-03 05:46:44,407 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,SelfDestructingSolverStorable15 [2021-11-03 05:46:44,407 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:46:44,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:44,408 INFO L85 PathProgramCache]: Analyzing trace with hash -242572171, now seen corresponding path program 2 times [2021-11-03 05:46:44,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:46:44,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101540509] [2021-11-03 05:46:44,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:44,408 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:46:44,434 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:46:44,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1417538465] [2021-11-03 05:46:44,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 05:46:44,434 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:46:44,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:46:44,435 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) [2021-11-03 05:46:44,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-11-03 05:46:45,020 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 05:46:45,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:46:45,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 3245 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-03 05:46:45,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:46,591 INFO L134 CoverageAnalysis]: Checked inductivity of 5396 backedges. 325 proven. 253 refuted. 0 times theorem prover too weak. 4818 trivial. 0 not checked. [2021-11-03 05:46:46,591 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:46:48,745 INFO L134 CoverageAnalysis]: Checked inductivity of 5396 backedges. 325 proven. 253 refuted. 0 times theorem prover too weak. 4818 trivial. 0 not checked. [2021-11-03 05:46:48,745 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:46:48,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101540509] [2021-11-03 05:46:48,745 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:46:48,745 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1417538465] [2021-11-03 05:46:48,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1417538465] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:46:48,746 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 05:46:48,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 48 [2021-11-03 05:46:48,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456019991] [2021-11-03 05:46:48,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-11-03 05:46:48,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:46:48,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-11-03 05:46:48,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1127, Invalid=1129, Unknown=0, NotChecked=0, Total=2256 [2021-11-03 05:46:48,748 INFO L87 Difference]: Start difference. First operand 2846 states and 3278 transitions. Second operand has 48 states, 48 states have (on average 5.083333333333333) internal successors, (244), 48 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:50,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:50,435 INFO L93 Difference]: Finished difference Result 6500 states and 8238 transitions. [2021-11-03 05:46:50,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-03 05:46:50,436 INFO L78 Accepts]: Start accepts. Automaton has has 48 states, 48 states have (on average 5.083333333333333) internal successors, (244), 48 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1124 [2021-11-03 05:46:50,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:50,444 INFO L225 Difference]: With dead ends: 6500 [2021-11-03 05:46:50,444 INFO L226 Difference]: Without dead ends: 3726 [2021-11-03 05:46:50,447 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2246 GetRequests, 2200 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 933.27ms TimeCoverageRelationStatistics Valid=1127, Invalid=1129, Unknown=0, NotChecked=0, Total=2256 [2021-11-03 05:46:50,447 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 1712 mSolverCounterSat, 500 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1284.91ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 3.56ms SdHoareTripleChecker+Time, 500 IncrementalHoareTripleChecker+Valid, 1712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1544.47ms IncrementalHoareTripleChecker+Time [2021-11-03 05:46:50,448 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 2212 Unknown, 0 Unchecked, 3.56ms Time], IncrementalHoareTripleChecker [500 Valid, 1712 Invalid, 0 Unknown, 0 Unchecked, 1544.47ms Time] [2021-11-03 05:46:50,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3726 states. [2021-11-03 05:46:50,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3726 to 3726. [2021-11-03 05:46:50,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3726 states, 3720 states have (on average 1.117741935483871) internal successors, (4158), 3725 states have internal predecessors, (4158), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:50,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3726 states to 3726 states and 4158 transitions. [2021-11-03 05:46:50,538 INFO L78 Accepts]: Start accepts. Automaton has 3726 states and 4158 transitions. Word has length 1124 [2021-11-03 05:46:50,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:50,538 INFO L470 AbstractCegarLoop]: Abstraction has 3726 states and 4158 transitions. [2021-11-03 05:46:50,538 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 5.083333333333333) internal successors, (244), 48 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:50,539 INFO L276 IsEmpty]: Start isEmpty. Operand 3726 states and 4158 transitions. [2021-11-03 05:46:50,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1213 [2021-11-03 05:46:50,552 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:46:50,552 INFO L514 BasicCegarLoop]: trace histogram [44, 44, 44, 44, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:50,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-11-03 05:46:50,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-11-03 05:46:50,760 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:46:50,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:50,761 INFO L85 PathProgramCache]: Analyzing trace with hash -872601035, now seen corresponding path program 3 times [2021-11-03 05:46:50,761 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:46:50,761 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827221402] [2021-11-03 05:46:50,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:50,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:46:50,791 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:46:50,792 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1899419994] [2021-11-03 05:46:50,792 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 05:46:50,792 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:46:50,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:46:50,793 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) [2021-11-03 05:46:50,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-11-03 05:46:51,073 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-03 05:46:51,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:46:51,078 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 05:46:51,084 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:52,556 INFO L134 CoverageAnalysis]: Checked inductivity of 8344 backedges. 143 proven. 0 refuted. 0 times theorem prover too weak. 8201 trivial. 0 not checked. [2021-11-03 05:46:52,557 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 05:46:52,557 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:46:52,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827221402] [2021-11-03 05:46:52,557 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:46:52,557 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1899419994] [2021-11-03 05:46:52,557 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1899419994] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 05:46:52,557 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 05:46:52,558 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 05:46:52,558 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452540822] [2021-11-03 05:46:52,558 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 05:46:52,558 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:46:52,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 05:46:52,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:46:52,559 INFO L87 Difference]: Start difference. First operand 3726 states and 4158 transitions. Second operand has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:53,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:46:53,553 INFO L93 Difference]: Finished difference Result 8680 states and 9757 transitions. [2021-11-03 05:46:53,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 05:46:53,554 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 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 1212 [2021-11-03 05:46:53,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:46:53,569 INFO L225 Difference]: With dead ends: 8680 [2021-11-03 05:46:53,569 INFO L226 Difference]: Without dead ends: 5892 [2021-11-03 05:46:53,573 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1211 GetRequests, 1210 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.89ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 05:46:53,573 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 246 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 748.12ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.93ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 881.60ms IncrementalHoareTripleChecker+Time [2021-11-03 05:46:53,574 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 0 Invalid, 796 Unknown, 0 Unchecked, 0.93ms Time], IncrementalHoareTripleChecker [2 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 881.60ms Time] [2021-11-03 05:46:53,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2021-11-03 05:46:53,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5880. [2021-11-03 05:46:53,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5880 states, 5874 states have (on average 1.1280217909431394) internal successors, (6626), 5879 states have internal predecessors, (6626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:53,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5880 states to 5880 states and 6626 transitions. [2021-11-03 05:46:53,702 INFO L78 Accepts]: Start accepts. Automaton has 5880 states and 6626 transitions. Word has length 1212 [2021-11-03 05:46:53,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:46:53,703 INFO L470 AbstractCegarLoop]: Abstraction has 5880 states and 6626 transitions. [2021-11-03 05:46:53,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.0) internal successors, (180), 3 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:46:53,703 INFO L276 IsEmpty]: Start isEmpty. Operand 5880 states and 6626 transitions. [2021-11-03 05:46:53,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1220 [2021-11-03 05:46:53,716 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:46:53,716 INFO L514 BasicCegarLoop]: trace histogram [44, 44, 44, 44, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:46:53,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-11-03 05:46:53,934 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-11-03 05:46:53,935 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:46:53,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:46:53,935 INFO L85 PathProgramCache]: Analyzing trace with hash -696970893, now seen corresponding path program 1 times [2021-11-03 05:46:53,935 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:46:53,935 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416184570] [2021-11-03 05:46:53,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:53,936 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:46:53,976 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:46:53,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [670844674] [2021-11-03 05:46:53,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:46:53,976 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:46:53,976 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:46:53,977 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:46:53,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-11-03 05:46:54,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 05:46:54,663 INFO L263 TraceCheckSpWp]: Trace formula consists of 3798 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-03 05:46:54,670 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:46:56,985 INFO L134 CoverageAnalysis]: Checked inductivity of 8344 backedges. 325 proven. 990 refuted. 0 times theorem prover too weak. 7029 trivial. 0 not checked. [2021-11-03 05:46:56,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:47:02,210 INFO L134 CoverageAnalysis]: Checked inductivity of 8344 backedges. 325 proven. 990 refuted. 0 times theorem prover too weak. 7029 trivial. 0 not checked. [2021-11-03 05:47:02,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:47:02,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416184570] [2021-11-03 05:47:02,211 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:47:02,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [670844674] [2021-11-03 05:47:02,211 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [670844674] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:47:02,211 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 05:47:02,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 92 [2021-11-03 05:47:02,211 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136521238] [2021-11-03 05:47:02,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2021-11-03 05:47:02,212 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:47:02,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2021-11-03 05:47:02,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4186, Invalid=4186, Unknown=0, NotChecked=0, Total=8372 [2021-11-03 05:47:02,215 INFO L87 Difference]: Start difference. First operand 5880 states and 6626 transitions. Second operand has 92 states, 92 states have (on average 3.2065217391304346) internal successors, (295), 92 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) [2021-11-03 05:47:05,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:47:05,152 INFO L93 Difference]: Finished difference Result 12907 states and 15680 transitions. [2021-11-03 05:47:05,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-11-03 05:47:05,152 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 92 states have (on average 3.2065217391304346) internal successors, (295), 92 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) Word has length 1219 [2021-11-03 05:47:05,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:47:05,165 INFO L225 Difference]: With dead ends: 12907 [2021-11-03 05:47:05,165 INFO L226 Difference]: Without dead ends: 7168 [2021-11-03 05:47:05,173 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2436 GetRequests, 2346 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4320.02ms TimeCoverageRelationStatistics Valid=4186, Invalid=4186, Unknown=0, NotChecked=0, Total=8372 [2021-11-03 05:47:05,173 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 2722 mSolverCounterSat, 739 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1978.34ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3461 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.16ms SdHoareTripleChecker+Time, 739 IncrementalHoareTripleChecker+Valid, 2722 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2492.50ms IncrementalHoareTripleChecker+Time [2021-11-03 05:47:05,174 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 3461 Unknown, 0 Unchecked, 6.16ms Time], IncrementalHoareTripleChecker [739 Valid, 2722 Invalid, 0 Unknown, 0 Unchecked, 2492.50ms Time] [2021-11-03 05:47:05,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7168 states. [2021-11-03 05:47:05,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7168 to 7168. [2021-11-03 05:47:05,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7168 states, 7162 states have (on average 1.1049986037419715) internal successors, (7914), 7167 states have internal predecessors, (7914), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:47:05,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7168 states to 7168 states and 7914 transitions. [2021-11-03 05:47:05,363 INFO L78 Accepts]: Start accepts. Automaton has 7168 states and 7914 transitions. Word has length 1219 [2021-11-03 05:47:05,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:47:05,364 INFO L470 AbstractCegarLoop]: Abstraction has 7168 states and 7914 transitions. [2021-11-03 05:47:05,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 92 states have (on average 3.2065217391304346) internal successors, (295), 92 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) [2021-11-03 05:47:05,364 INFO L276 IsEmpty]: Start isEmpty. Operand 7168 states and 7914 transitions. [2021-11-03 05:47:05,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1312 [2021-11-03 05:47:05,378 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:47:05,379 INFO L514 BasicCegarLoop]: trace histogram [90, 90, 44, 44, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:47:05,403 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2021-11-03 05:47:05,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:47:05,582 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:47:05,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:47:05,583 INFO L85 PathProgramCache]: Analyzing trace with hash 541272115, now seen corresponding path program 2 times [2021-11-03 05:47:05,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:47:05,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987985503] [2021-11-03 05:47:05,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:47:05,583 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:47:05,617 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:47:05,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1886411952] [2021-11-03 05:47:05,617 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 05:47:05,617 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:47:05,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:47:05,619 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:47:05,645 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-11-03 05:47:06,381 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 05:47:06,381 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 05:47:06,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 4350 conjuncts, 93 conjunts are in the unsatisfiable core [2021-11-03 05:47:06,420 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 05:47:11,040 INFO L134 CoverageAnalysis]: Checked inductivity of 14554 backedges. 325 proven. 4095 refuted. 0 times theorem prover too weak. 10134 trivial. 0 not checked. [2021-11-03 05:47:11,041 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 05:47:39,273 INFO L134 CoverageAnalysis]: Checked inductivity of 14554 backedges. 325 proven. 4095 refuted. 0 times theorem prover too weak. 10134 trivial. 0 not checked. [2021-11-03 05:47:39,274 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 05:47:39,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987985503] [2021-11-03 05:47:39,274 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 05:47:39,274 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1886411952] [2021-11-03 05:47:39,274 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1886411952] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 05:47:39,274 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 05:47:39,275 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [93, 93] total 184 [2021-11-03 05:47:39,275 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106788747] [2021-11-03 05:47:39,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 184 states [2021-11-03 05:47:39,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 05:47:39,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 184 interpolants. [2021-11-03 05:47:39,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16836, Invalid=16836, Unknown=0, NotChecked=0, Total=33672 [2021-11-03 05:47:39,284 INFO L87 Difference]: Start difference. First operand 7168 states and 7914 transitions. Second operand has 184 states, 184 states have (on average 2.1032608695652173) internal successors, (387), 184 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:47:47,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 05:47:47,576 INFO L93 Difference]: Finished difference Result 16725 states and 20786 transitions. [2021-11-03 05:47:47,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2021-11-03 05:47:47,578 INFO L78 Accepts]: Start accepts. Automaton has has 184 states, 184 states have (on average 2.1032608695652173) internal successors, (387), 184 states have internal predecessors, (387), 0 states have call successors, (0), 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 1311 [2021-11-03 05:47:47,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 05:47:47,593 INFO L225 Difference]: With dead ends: 16725 [2021-11-03 05:47:47,593 INFO L226 Difference]: Without dead ends: 9744 [2021-11-03 05:47:47,632 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2620 GetRequests, 2438 SyntacticMatches, 0 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29145.09ms TimeCoverageRelationStatistics Valid=16836, Invalid=16836, Unknown=0, NotChecked=0, Total=33672 [2021-11-03 05:47:47,633 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 2058 mSDsCounter, 0 mSdLazyCounter, 2904 mSolverCounterSat, 1329 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4404.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 4233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 12.64ms SdHoareTripleChecker+Time, 1329 IncrementalHoareTripleChecker+Valid, 2904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5623.31ms IncrementalHoareTripleChecker+Time [2021-11-03 05:47:47,633 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 4233 Unknown, 0 Unchecked, 12.64ms Time], IncrementalHoareTripleChecker [1329 Valid, 2904 Invalid, 0 Unknown, 0 Unchecked, 5623.31ms Time] [2021-11-03 05:47:47,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9744 states. [2021-11-03 05:47:47,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9744 to 9744. [2021-11-03 05:47:47,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9744 states, 9738 states have (on average 1.0772232491271307) internal successors, (10490), 9743 states have internal predecessors, (10490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:47:47,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9744 states to 9744 states and 10490 transitions. [2021-11-03 05:47:47,941 INFO L78 Accepts]: Start accepts. Automaton has 9744 states and 10490 transitions. Word has length 1311 [2021-11-03 05:47:47,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 05:47:47,941 INFO L470 AbstractCegarLoop]: Abstraction has 9744 states and 10490 transitions. [2021-11-03 05:47:47,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 184 states, 184 states have (on average 2.1032608695652173) internal successors, (387), 184 states have internal predecessors, (387), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 05:47:47,942 INFO L276 IsEmpty]: Start isEmpty. Operand 9744 states and 10490 transitions. [2021-11-03 05:47:47,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1496 [2021-11-03 05:47:47,987 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 05:47:47,988 INFO L514 BasicCegarLoop]: trace histogram [182, 182, 44, 44, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 05:47:48,059 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2021-11-03 05:47:48,199 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:47:48,200 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (and 3 more)] === [2021-11-03 05:47:48,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 05:47:48,200 INFO L85 PathProgramCache]: Analyzing trace with hash 986838451, now seen corresponding path program 3 times [2021-11-03 05:47:48,201 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 05:47:48,201 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371963767] [2021-11-03 05:47:48,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 05:47:48,201 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 05:47:48,248 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 05:47:48,249 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1218707996] [2021-11-03 05:47:48,249 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 05:47:48,249 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 05:47:48,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 05:47:48,250 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 05:47:48,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process Killed by 15