./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.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_SFH_test5-3.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 94599b38b669e42115f92cee257d9ed4ed5d4777dca7d2ee690bacb4e0d226f0 --- Real Ultimate output --- This is Ultimate 0.2.1-wip.dd.seqcomp-4d01470 [2021-11-03 06:59:20,333 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 06:59:20,335 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 06:59:20,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 06:59:20,375 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 06:59:20,378 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 06:59:20,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 06:59:20,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 06:59:20,382 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 06:59:20,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 06:59:20,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 06:59:20,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 06:59:20,387 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 06:59:20,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 06:59:20,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 06:59:20,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 06:59:20,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 06:59:20,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 06:59:20,398 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 06:59:20,402 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 06:59:20,403 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 06:59:20,404 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 06:59:20,405 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 06:59:20,406 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 06:59:20,410 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 06:59:20,411 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 06:59:20,411 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 06:59:20,412 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 06:59:20,412 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 06:59:20,413 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 06:59:20,413 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 06:59:20,414 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 06:59:20,415 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 06:59:20,416 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 06:59:20,416 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 06:59:20,417 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 06:59:20,417 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 06:59:20,417 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 06:59:20,418 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 06:59:20,419 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 06:59:20,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 06:59:20,420 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-11-03 06:59:20,443 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 06:59:20,444 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 06:59:20,444 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-03 06:59:20,444 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-03 06:59:20,445 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-03 06:59:20,445 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-03 06:59:20,446 INFO L138 SettingsManager]: * Use SBE=true [2021-11-03 06:59:20,446 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 06:59:20,446 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 06:59:20,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 06:59:20,447 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 06:59:20,447 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 06:59:20,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 06:59:20,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 06:59:20,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 06:59:20,448 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 06:59:20,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 06:59:20,448 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 06:59:20,448 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 06:59:20,448 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 06:59:20,448 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 06:59:20,448 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 06:59:20,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 06:59:20,449 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 06:59:20,449 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 06:59:20,449 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 06:59:20,449 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-03 06:59:20,449 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 06:59:20,450 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-03 06:59:20,450 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-03 06:59:20,450 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 06:59:20,450 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 06:59:20,450 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 94599b38b669e42115f92cee257d9ed4ed5d4777dca7d2ee690bacb4e0d226f0 [2021-11-03 06:59:20,617 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 06:59:20,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 06:59:20,637 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 06:59:20,638 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 06:59:20,639 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 06:59:20,640 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i [2021-11-03 06:59:20,682 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c15d5cee4/44518a51b5dd41a887da3efe7288d223/FLAGa1d4e5154 [2021-11-03 06:59:21,167 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 06:59:21,168 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/uthash-2.0.2/uthash_SFH_test5-3.i [2021-11-03 06:59:21,186 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c15d5cee4/44518a51b5dd41a887da3efe7288d223/FLAGa1d4e5154 [2021-11-03 06:59:21,476 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c15d5cee4/44518a51b5dd41a887da3efe7288d223 [2021-11-03 06:59:21,478 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 06:59:21,479 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 06:59:21,482 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 06:59:21,482 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 06:59:21,485 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 06:59:21,485 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 06:59:21" (1/1) ... [2021-11-03 06:59:21,486 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@405e6d2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:59:21, skipping insertion in model container [2021-11-03 06:59:21,487 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 06:59:21" (1/1) ... [2021-11-03 06:59:21,492 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 06:59:21,547 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 06:59:21,871 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_SFH_test5-3.i[33021,33034] [2021-11-03 06:59:22,002 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_SFH_test5-3.i[49681,49694] [2021-11-03 06:59:22,030 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 06:59:22,037 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 06:59:22,061 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_SFH_test5-3.i[33021,33034] [2021-11-03 06:59:22,112 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_SFH_test5-3.i[49681,49694] [2021-11-03 06:59:22,155 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 06:59:22,191 INFO L208 MainTranslator]: Completed translation [2021-11-03 06:59:22,192 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:59:22 WrapperNode [2021-11-03 06:59:22,192 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 06:59:22,193 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 06:59:22,193 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 06:59:22,193 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 06:59:22,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:59:22" (1/1) ... [2021-11-03 06:59:22,225 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:59:22" (1/1) ... [2021-11-03 06:59:22,289 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 06:59:22,290 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 06:59:22,290 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 06:59:22,290 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 06:59:22,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:59:22" (1/1) ... [2021-11-03 06:59:22,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:59:22" (1/1) ... [2021-11-03 06:59:22,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:59:22" (1/1) ... [2021-11-03 06:59:22,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:59:22" (1/1) ... [2021-11-03 06:59:22,341 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:59:22" (1/1) ... [2021-11-03 06:59:22,351 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:59:22" (1/1) ... [2021-11-03 06:59:22,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:59:22" (1/1) ... [2021-11-03 06:59:22,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 06:59:22,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 06:59:22,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 06:59:22,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 06:59:22,378 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:59:22" (1/1) ... [2021-11-03 06:59:22,382 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 06:59:22,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:22,404 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 06:59:22,413 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 06:59:22,429 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 06:59:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 06:59:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-03 06:59:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-03 06:59:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 06:59:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-11-03 06:59:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-03 06:59:22,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 06:59:22,431 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 06:59:22,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 06:59:22,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 06:59:23,133 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 06:59:23,134 INFO L299 CfgBuilder]: Removed 128 assume(true) statements. [2021-11-03 06:59:23,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 06:59:23 BoogieIcfgContainer [2021-11-03 06:59:23,137 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 06:59:23,138 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 06:59:23,138 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 06:59:23,140 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 06:59:23,141 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 06:59:21" (1/3) ... [2021-11-03 06:59:23,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68154606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 06:59:23, skipping insertion in model container [2021-11-03 06:59:23,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 06:59:22" (2/3) ... [2021-11-03 06:59:23,142 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68154606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 06:59:23, skipping insertion in model container [2021-11-03 06:59:23,142 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 06:59:23" (3/3) ... [2021-11-03 06:59:23,143 INFO L111 eAbstractionObserver]: Analyzing ICFG uthash_SFH_test5-3.i [2021-11-03 06:59:23,149 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 06:59:23,150 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2021-11-03 06:59:23,185 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 06:59:23,193 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 06:59:23,193 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-03 06:59:23,229 INFO L276 IsEmpty]: Start isEmpty. Operand has 308 states, 301 states have (on average 1.7242524916943522) internal successors, (519), 307 states have internal predecessors, (519), 0 states have call successors, (0), 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 06:59:23,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-03 06:59:23,234 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:23,235 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 06:59:23,235 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 06:59:23,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:23,239 INFO L85 PathProgramCache]: Analyzing trace with hash 889803109, now seen corresponding path program 1 times [2021-11-03 06:59:23,245 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:23,245 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19677724] [2021-11-03 06:59:23,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:23,246 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:23,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 06:59:23,413 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 06:59:23,413 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:23,414 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19677724] [2021-11-03 06:59:23,414 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [19677724] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 06:59:23,414 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 06:59:23,414 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 06:59:23,416 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562921175] [2021-11-03 06:59:23,418 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 06:59:23,419 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:23,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 06:59:23,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 06:59:23,443 INFO L87 Difference]: Start difference. First operand has 308 states, 301 states have (on average 1.7242524916943522) internal successors, (519), 307 states have internal predecessors, (519), 0 states have call successors, (0), 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 06:59:24,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:24,169 INFO L93 Difference]: Finished difference Result 614 states and 1036 transitions. [2021-11-03 06:59:24,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 06:59:24,172 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 06:59:24,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:24,181 INFO L225 Difference]: With dead ends: 614 [2021-11-03 06:59:24,182 INFO L226 Difference]: Without dead ends: 254 [2021-11-03 06:59:24,190 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.04ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 06:59:24,194 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 406 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 537.38ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.56ms SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 406 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 660.37ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:24,195 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 406 Unknown, 0 Unchecked, 2.56ms Time], IncrementalHoareTripleChecker [0 Valid, 406 Invalid, 0 Unknown, 0 Unchecked, 660.37ms Time] [2021-11-03 06:59:24,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2021-11-03 06:59:24,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 254. [2021-11-03 06:59:24,240 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 06:59:24,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 333 transitions. [2021-11-03 06:59:24,242 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 333 transitions. Word has length 8 [2021-11-03 06:59:24,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:24,243 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 333 transitions. [2021-11-03 06:59:24,243 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 06:59:24,243 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 333 transitions. [2021-11-03 06:59:24,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-11-03 06:59:24,245 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:24,245 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 06:59:24,245 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 06:59:24,246 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 06:59:24,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:24,246 INFO L85 PathProgramCache]: Analyzing trace with hash -680083191, now seen corresponding path program 1 times [2021-11-03 06:59:24,246 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:24,247 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413204403] [2021-11-03 06:59:24,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:24,247 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:24,261 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:24,261 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [167156235] [2021-11-03 06:59:24,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:24,262 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:24,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:24,280 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 06:59:24,281 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 06:59:24,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 06:59:24,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 06:59:24,479 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:24,627 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 06:59:24,627 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 06:59:24,627 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:24,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413204403] [2021-11-03 06:59:24,627 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:24,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167156235] [2021-11-03 06:59:24,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167156235] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 06:59:24,628 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 06:59:24,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 06:59:24,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262812291] [2021-11-03 06:59:24,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 06:59:24,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:24,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 06:59:24,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 06:59:24,630 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 06:59:25,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:25,516 INFO L93 Difference]: Finished difference Result 587 states and 769 transitions. [2021-11-03 06:59:25,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 06:59:25,517 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 06:59:25,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:25,520 INFO L225 Difference]: With dead ends: 587 [2021-11-03 06:59:25,520 INFO L226 Difference]: Without dead ends: 505 [2021-11-03 06:59:25,520 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.80ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 06:59:25,521 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 327 mSDsluCounter, 325 mSDsCounter, 0 mSdLazyCounter, 664 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 701.68ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 327 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 665 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 5.25ms SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 849.95ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:25,522 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [327 Valid, 0 Invalid, 665 Unknown, 0 Unchecked, 5.25ms Time], IncrementalHoareTripleChecker [1 Valid, 664 Invalid, 0 Unknown, 0 Unchecked, 849.95ms Time] [2021-11-03 06:59:25,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states. [2021-11-03 06:59:25,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 255. [2021-11-03 06:59:25,534 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 06:59:25,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 334 transitions. [2021-11-03 06:59:25,534 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 334 transitions. Word has length 42 [2021-11-03 06:59:25,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:25,535 INFO L470 AbstractCegarLoop]: Abstraction has 255 states and 334 transitions. [2021-11-03 06:59:25,535 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 06:59:25,535 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 334 transitions. [2021-11-03 06:59:25,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-03 06:59:25,539 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:25,540 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 06:59:25,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-03 06:59:25,757 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 06:59:25,757 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 06:59:25,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:25,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1837409632, now seen corresponding path program 1 times [2021-11-03 06:59:25,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:25,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60677306] [2021-11-03 06:59:25,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:25,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:25,788 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:25,788 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [665803053] [2021-11-03 06:59:25,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:25,789 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:25,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:25,798 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 06:59:25,799 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 06:59:26,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 06:59:26,009 INFO L263 TraceCheckSpWp]: Trace formula consists of 392 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 06:59:26,019 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:26,271 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 06:59:26,271 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 06:59:26,272 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:26,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60677306] [2021-11-03 06:59:26,272 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:26,272 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665803053] [2021-11-03 06:59:26,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665803053] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 06:59:26,272 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 06:59:26,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 06:59:26,272 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862822381] [2021-11-03 06:59:26,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 06:59:26,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:26,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 06:59:26,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 06:59:26,273 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 06:59:26,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:26,915 INFO L93 Difference]: Finished difference Result 528 states and 696 transitions. [2021-11-03 06:59:26,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 06:59:26,916 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 06:59:26,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:26,917 INFO L225 Difference]: With dead ends: 528 [2021-11-03 06:59:26,917 INFO L226 Difference]: Without dead ends: 276 [2021-11-03 06:59:26,918 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.39ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 06:59:26,919 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 524.63ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.00ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 621.52ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:26,919 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 683 Unknown, 0 Unchecked, 2.00ms Time], IncrementalHoareTripleChecker [28 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 621.52ms Time] [2021-11-03 06:59:26,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2021-11-03 06:59:26,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 275. [2021-11-03 06:59:26,926 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 06:59:26,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 354 transitions. [2021-11-03 06:59:26,927 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 354 transitions. Word has length 140 [2021-11-03 06:59:26,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:26,927 INFO L470 AbstractCegarLoop]: Abstraction has 275 states and 354 transitions. [2021-11-03 06:59:26,927 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 06:59:26,927 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 354 transitions. [2021-11-03 06:59:26,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-03 06:59:26,931 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:26,931 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 06:59:26,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-03 06:59:27,151 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 06:59:27,151 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 06:59:27,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:27,152 INFO L85 PathProgramCache]: Analyzing trace with hash -1273244828, now seen corresponding path program 1 times [2021-11-03 06:59:27,152 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:27,152 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539136122] [2021-11-03 06:59:27,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:27,153 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:27,176 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:27,182 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1229558989] [2021-11-03 06:59:27,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:27,183 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:27,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:27,184 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 06:59:27,190 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 06:59:27,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 06:59:27,382 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 06:59:27,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:27,588 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 06:59:27,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 06:59:27,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:27,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539136122] [2021-11-03 06:59:27,589 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:27,589 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1229558989] [2021-11-03 06:59:27,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1229558989] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 06:59:27,590 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 06:59:27,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 06:59:27,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221301729] [2021-11-03 06:59:27,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 06:59:27,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:27,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 06:59:27,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 06:59:27,592 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 06:59:28,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:28,272 INFO L93 Difference]: Finished difference Result 568 states and 736 transitions. [2021-11-03 06:59:28,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 06:59:28,272 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 06:59:28,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:28,274 INFO L225 Difference]: With dead ends: 568 [2021-11-03 06:59:28,274 INFO L226 Difference]: Without dead ends: 296 [2021-11-03 06:59:28,274 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.61ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 06:59:28,275 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 9 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 550.48ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 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, 658.37ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:28,275 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 0 Invalid, 683 Unknown, 0 Unchecked, 1.78ms Time], IncrementalHoareTripleChecker [28 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 658.37ms Time] [2021-11-03 06:59:28,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2021-11-03 06:59:28,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 295. [2021-11-03 06:59:28,281 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 06:59:28,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 295 states to 295 states and 374 transitions. [2021-11-03 06:59:28,282 INFO L78 Accepts]: Start accepts. Automaton has 295 states and 374 transitions. Word has length 140 [2021-11-03 06:59:28,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:28,282 INFO L470 AbstractCegarLoop]: Abstraction has 295 states and 374 transitions. [2021-11-03 06:59:28,282 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 06:59:28,283 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states and 374 transitions. [2021-11-03 06:59:28,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-03 06:59:28,286 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:28,286 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 06:59:28,322 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 06:59:28,499 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 06:59:28,500 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 06:59:28,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:28,500 INFO L85 PathProgramCache]: Analyzing trace with hash -882913824, now seen corresponding path program 1 times [2021-11-03 06:59:28,500 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:28,500 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046895368] [2021-11-03 06:59:28,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:28,501 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:28,523 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:28,523 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [93780854] [2021-11-03 06:59:28,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:28,523 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:28,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:28,540 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 06:59:28,541 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 06:59:28,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 06:59:28,719 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 06:59:28,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:28,932 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 06:59:28,933 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 06:59:28,933 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:28,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046895368] [2021-11-03 06:59:28,933 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:28,933 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [93780854] [2021-11-03 06:59:28,933 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [93780854] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 06:59:28,934 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 06:59:28,934 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 06:59:28,934 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786658012] [2021-11-03 06:59:28,934 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 06:59:28,934 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:28,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 06:59:28,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 06:59:28,935 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 06:59:29,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:29,628 INFO L93 Difference]: Finished difference Result 397 states and 510 transitions. [2021-11-03 06:59:29,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 06:59:29,629 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 06:59:29,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:29,630 INFO L225 Difference]: With dead ends: 397 [2021-11-03 06:59:29,630 INFO L226 Difference]: Without dead ends: 316 [2021-11-03 06:59:29,631 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 138 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.54ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 06:59:29,631 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 10 mSDsluCounter, 298 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 563.09ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 683 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.98ms SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 676.14ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:29,632 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10 Valid, 0 Invalid, 683 Unknown, 0 Unchecked, 1.98ms Time], IncrementalHoareTripleChecker [28 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 676.14ms Time] [2021-11-03 06:59:29,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2021-11-03 06:59:29,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 315. [2021-11-03 06:59:29,638 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 06:59:29,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 394 transitions. [2021-11-03 06:59:29,639 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 394 transitions. Word has length 140 [2021-11-03 06:59:29,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:29,640 INFO L470 AbstractCegarLoop]: Abstraction has 315 states and 394 transitions. [2021-11-03 06:59:29,640 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 06:59:29,640 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 394 transitions. [2021-11-03 06:59:29,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-03 06:59:29,641 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:29,642 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 06:59:29,660 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2021-11-03 06:59:29,858 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 06:59:29,858 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 06:59:29,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:29,859 INFO L85 PathProgramCache]: Analyzing trace with hash 115522276, now seen corresponding path program 1 times [2021-11-03 06:59:29,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:29,859 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858177459] [2021-11-03 06:59:29,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:29,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:29,871 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:29,872 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1410012271] [2021-11-03 06:59:29,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:29,872 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:29,872 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:29,877 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 06:59:29,877 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 06:59:30,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 06:59:30,044 INFO L263 TraceCheckSpWp]: Trace formula consists of 404 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 06:59:30,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:30,234 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 06:59:30,234 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 06:59:30,235 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:30,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858177459] [2021-11-03 06:59:30,235 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:30,235 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410012271] [2021-11-03 06:59:30,235 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410012271] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 06:59:30,235 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 06:59:30,235 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 06:59:30,236 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093735557] [2021-11-03 06:59:30,236 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 06:59:30,236 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:30,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 06:59:30,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 06:59:30,237 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 06:59:30,876 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:30,876 INFO L93 Difference]: Finished difference Result 619 states and 777 transitions. [2021-11-03 06:59:30,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 06:59:30,877 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 06:59:30,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:30,878 INFO L225 Difference]: With dead ends: 619 [2021-11-03 06:59:30,878 INFO L226 Difference]: Without dead ends: 307 [2021-11-03 06:59:30,878 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.38ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 06:59:30,879 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 321 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 661 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 514.27ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 321 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 685 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.14ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 661 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 615.99ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:30,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [321 Valid, 0 Invalid, 685 Unknown, 0 Unchecked, 2.14ms Time], IncrementalHoareTripleChecker [24 Valid, 661 Invalid, 0 Unknown, 0 Unchecked, 615.99ms Time] [2021-11-03 06:59:30,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states. [2021-11-03 06:59:30,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 301. [2021-11-03 06:59:30,886 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 06:59:30,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 373 transitions. [2021-11-03 06:59:30,887 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 373 transitions. Word has length 140 [2021-11-03 06:59:30,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:30,888 INFO L470 AbstractCegarLoop]: Abstraction has 301 states and 373 transitions. [2021-11-03 06:59:30,888 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 06:59:30,888 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 373 transitions. [2021-11-03 06:59:30,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-03 06:59:30,889 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:30,889 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 06:59:30,907 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 06:59:31,095 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 06:59:31,095 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 06:59:31,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:31,096 INFO L85 PathProgramCache]: Analyzing trace with hash 32737814, now seen corresponding path program 1 times [2021-11-03 06:59:31,096 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:31,096 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205367717] [2021-11-03 06:59:31,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:31,097 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:31,108 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:31,109 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [846075005] [2021-11-03 06:59:31,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:31,109 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:31,109 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:31,136 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 06:59:31,137 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 06:59:31,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 06:59:31,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 06:59:31,300 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:31,485 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 06:59:31,486 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 06:59:31,487 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:31,487 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205367717] [2021-11-03 06:59:31,488 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:31,488 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [846075005] [2021-11-03 06:59:31,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [846075005] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 06:59:31,490 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 06:59:31,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 06:59:31,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764251490] [2021-11-03 06:59:31,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 06:59:31,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:31,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 06:59:31,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 06:59:31,497 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 06:59:32,387 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:32,387 INFO L93 Difference]: Finished difference Result 680 states and 844 transitions. [2021-11-03 06:59:32,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 06:59:32,388 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 06:59:32,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:32,389 INFO L225 Difference]: With dead ends: 680 [2021-11-03 06:59:32,389 INFO L226 Difference]: Without dead ends: 382 [2021-11-03 06:59:32,390 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 06:59:32,390 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 314 mSDsluCounter, 506 mSDsCounter, 0 mSdLazyCounter, 956 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 722.88ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 980 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.92ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 956 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 859.36ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:32,390 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [314 Valid, 0 Invalid, 980 Unknown, 0 Unchecked, 2.92ms Time], IncrementalHoareTripleChecker [24 Valid, 956 Invalid, 0 Unknown, 0 Unchecked, 859.36ms Time] [2021-11-03 06:59:32,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2021-11-03 06:59:32,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 287. [2021-11-03 06:59:32,395 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 06:59:32,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 352 transitions. [2021-11-03 06:59:32,396 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 352 transitions. Word has length 140 [2021-11-03 06:59:32,396 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:32,396 INFO L470 AbstractCegarLoop]: Abstraction has 287 states and 352 transitions. [2021-11-03 06:59:32,396 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 06:59:32,396 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 352 transitions. [2021-11-03 06:59:32,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-03 06:59:32,397 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:32,397 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 06:59:32,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-11-03 06:59:32,611 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 06:59:32,612 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 06:59:32,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:32,612 INFO L85 PathProgramCache]: Analyzing trace with hash -577227484, now seen corresponding path program 1 times [2021-11-03 06:59:32,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:32,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568756317] [2021-11-03 06:59:32,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:32,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:32,625 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:32,625 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1572429262] [2021-11-03 06:59:32,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:32,626 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:32,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:32,627 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 06:59:32,628 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 06:59:32,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 06:59:32,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 06:59:32,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:32,983 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 06:59:32,983 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 06:59:32,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:32,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568756317] [2021-11-03 06:59:32,984 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:32,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1572429262] [2021-11-03 06:59:32,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1572429262] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 06:59:32,984 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 06:59:32,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-03 06:59:32,984 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093912] [2021-11-03 06:59:32,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 06:59:32,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:32,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 06:59:32,985 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-03 06:59:32,985 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 06:59:34,375 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 06:59:34,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:34,937 INFO L93 Difference]: Finished difference Result 379 states and 468 transitions. [2021-11-03 06:59:34,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 06:59:34,937 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 06:59:34,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:34,938 INFO L225 Difference]: With dead ends: 379 [2021-11-03 06:59:34,938 INFO L226 Difference]: Without dead ends: 278 [2021-11-03 06:59:34,938 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.94ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-03 06:59:34,939 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 95 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1806.53ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.10ms SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1926.30ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:34,939 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 0 Invalid, 863 Unknown, 0 Unchecked, 2.10ms Time], IncrementalHoareTripleChecker [24 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 1926.30ms Time] [2021-11-03 06:59:34,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 278 states. [2021-11-03 06:59:34,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 278 to 273. [2021-11-03 06:59:34,943 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 06:59:34,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 331 transitions. [2021-11-03 06:59:34,944 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 331 transitions. Word has length 140 [2021-11-03 06:59:34,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:34,944 INFO L470 AbstractCegarLoop]: Abstraction has 273 states and 331 transitions. [2021-11-03 06:59:34,944 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 06:59:34,944 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 331 transitions. [2021-11-03 06:59:34,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2021-11-03 06:59:34,945 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:34,945 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 06:59:34,964 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-11-03 06:59:35,145 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 06:59:35,146 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 06:59:35,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:35,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1460076330, now seen corresponding path program 1 times [2021-11-03 06:59:35,146 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:35,146 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952111122] [2021-11-03 06:59:35,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:35,147 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:35,157 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:35,157 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1328873271] [2021-11-03 06:59:35,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:35,158 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:35,158 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:35,159 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 06:59:35,160 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 06:59:35,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 06:59:35,310 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 06:59:35,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:35,535 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 06:59:35,535 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 06:59:35,755 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 06:59:35,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:35,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952111122] [2021-11-03 06:59:35,756 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:35,756 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328873271] [2021-11-03 06:59:35,756 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328873271] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 06:59:35,756 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 06:59:35,756 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-11-03 06:59:35,757 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [275364780] [2021-11-03 06:59:35,762 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 06:59:35,762 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:35,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 06:59:35,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-03 06:59:35,763 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 06:59:37,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:37,310 INFO L93 Difference]: Finished difference Result 1081 states and 1313 transitions. [2021-11-03 06:59:37,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 06:59:37,311 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 06:59:37,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:37,314 INFO L225 Difference]: With dead ends: 1081 [2021-11-03 06:59:37,314 INFO L226 Difference]: Without dead ends: 993 [2021-11-03 06:59:37,314 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 278 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.98ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-03 06:59:37,315 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 2059 mSDsluCounter, 814 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1226.26ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 2059 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 6.64ms SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1489.00ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:37,315 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2059 Valid, 0 Invalid, 1152 Unknown, 0 Unchecked, 6.64ms Time], IncrementalHoareTripleChecker [11 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 1489.00ms Time] [2021-11-03 06:59:37,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 993 states. [2021-11-03 06:59:37,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 993 to 819. [2021-11-03 06:59:37,333 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 06:59:37,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 819 states to 819 states and 997 transitions. [2021-11-03 06:59:37,335 INFO L78 Accepts]: Start accepts. Automaton has 819 states and 997 transitions. Word has length 140 [2021-11-03 06:59:37,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:37,335 INFO L470 AbstractCegarLoop]: Abstraction has 819 states and 997 transitions. [2021-11-03 06:59:37,336 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 06:59:37,336 INFO L276 IsEmpty]: Start isEmpty. Operand 819 states and 997 transitions. [2021-11-03 06:59:37,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2021-11-03 06:59:37,340 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:37,340 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 06:59:37,360 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 06:59:37,547 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 06:59:37,547 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 06:59:37,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:37,548 INFO L85 PathProgramCache]: Analyzing trace with hash 1752556443, now seen corresponding path program 2 times [2021-11-03 06:59:37,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:37,548 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569958761] [2021-11-03 06:59:37,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:37,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:37,581 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:37,581 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [361686285] [2021-11-03 06:59:37,581 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 06:59:37,581 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:37,581 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:37,586 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 06:59:37,588 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 06:59:37,857 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 06:59:37,857 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 06:59:37,864 INFO L263 TraceCheckSpWp]: Trace formula consists of 1091 conjuncts, 6 conjunts are in the unsatisfiable core [2021-11-03 06:59:37,868 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:38,593 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 06:59:38,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 06:59:39,366 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 06:59:39,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:39,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569958761] [2021-11-03 06:59:39,366 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:39,367 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [361686285] [2021-11-03 06:59:39,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [361686285] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 06:59:39,367 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 06:59:39,367 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-11-03 06:59:39,367 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824241206] [2021-11-03 06:59:39,368 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 06:59:39,368 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:39,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 06:59:39,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-03 06:59:39,372 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 06:59:43,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:43,175 INFO L93 Difference]: Finished difference Result 2434 states and 2960 transitions. [2021-11-03 06:59:43,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 06:59:43,178 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 06:59:43,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:43,185 INFO L225 Difference]: With dead ends: 2434 [2021-11-03 06:59:43,185 INFO L226 Difference]: Without dead ends: 2346 [2021-11-03 06:59:43,186 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 866 GetRequests, 856 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 43.03ms TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-03 06:59:43,186 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 4276 mSDsluCounter, 2539 mSDsCounter, 0 mSdLazyCounter, 2898 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3038.24ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 4276 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 11.98ms SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 2898 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3658.44ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:43,187 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [4276 Valid, 0 Invalid, 2918 Unknown, 0 Unchecked, 11.98ms Time], IncrementalHoareTripleChecker [20 Valid, 2898 Invalid, 0 Unknown, 0 Unchecked, 3658.44ms Time] [2021-11-03 06:59:43,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2346 states. [2021-11-03 06:59:43,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2346 to 1911. [2021-11-03 06:59:43,214 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 06:59:43,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1911 states to 1911 states and 2329 transitions. [2021-11-03 06:59:43,217 INFO L78 Accepts]: Start accepts. Automaton has 1911 states and 2329 transitions. Word has length 434 [2021-11-03 06:59:43,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:43,218 INFO L470 AbstractCegarLoop]: Abstraction has 1911 states and 2329 transitions. [2021-11-03 06:59:43,218 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 06:59:43,218 INFO L276 IsEmpty]: Start isEmpty. Operand 1911 states and 2329 transitions. [2021-11-03 06:59:43,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1023 [2021-11-03 06:59:43,238 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:43,239 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 06:59:43,277 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 06:59:43,459 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 06:59:43,460 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 06:59:43,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:43,460 INFO L85 PathProgramCache]: Analyzing trace with hash -675748379, now seen corresponding path program 3 times [2021-11-03 06:59:43,460 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:43,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243533342] [2021-11-03 06:59:43,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:43,461 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:43,489 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:43,489 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [696098300] [2021-11-03 06:59:43,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 06:59:43,489 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:43,489 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:43,491 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 06:59:43,492 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 06:59:43,749 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-03 06:59:43,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 06:59:43,753 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 06:59:43,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:47,319 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 06:59:47,319 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 06:59:47,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:47,319 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243533342] [2021-11-03 06:59:47,320 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:47,320 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696098300] [2021-11-03 06:59:47,320 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696098300] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 06:59:47,320 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 06:59:47,320 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 06:59:47,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030366324] [2021-11-03 06:59:47,321 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 06:59:47,321 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:47,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 06:59:47,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 06:59:47,321 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 06:59:47,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:47,960 INFO L93 Difference]: Finished difference Result 3746 states and 4565 transitions. [2021-11-03 06:59:47,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 06:59:47,960 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 06:59:47,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:47,965 INFO L225 Difference]: With dead ends: 3746 [2021-11-03 06:59:47,965 INFO L226 Difference]: Without dead ends: 1980 [2021-11-03 06:59:47,967 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1021 GetRequests, 1020 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.33ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 06:59:47,968 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 149 mSDsluCounter, 290 mSDsCounter, 0 mSdLazyCounter, 653 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 495.22ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 656 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.91ms SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 653 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 612.44ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:47,968 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [149 Valid, 0 Invalid, 656 Unknown, 0 Unchecked, 0.91ms Time], IncrementalHoareTripleChecker [3 Valid, 653 Invalid, 0 Unknown, 0 Unchecked, 612.44ms Time] [2021-11-03 06:59:47,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1980 states. [2021-11-03 06:59:47,992 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1980 to 1968. [2021-11-03 06:59:47,995 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 06:59:47,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1968 states to 1968 states and 2401 transitions. [2021-11-03 06:59:47,998 INFO L78 Accepts]: Start accepts. Automaton has 1968 states and 2401 transitions. Word has length 1022 [2021-11-03 06:59:47,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:47,998 INFO L470 AbstractCegarLoop]: Abstraction has 1968 states and 2401 transitions. [2021-11-03 06:59:47,999 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 06:59:47,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1968 states and 2401 transitions. [2021-11-03 06:59:48,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1030 [2021-11-03 06:59:48,007 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:48,008 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 06:59:48,029 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 06:59:48,215 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 06:59:48,216 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 06:59:48,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:48,216 INFO L85 PathProgramCache]: Analyzing trace with hash -680932187, now seen corresponding path program 1 times [2021-11-03 06:59:48,216 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:48,216 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445422716] [2021-11-03 06:59:48,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:48,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:48,242 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:48,242 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1889126122] [2021-11-03 06:59:48,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:48,243 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:48,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:48,244 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 06:59:48,245 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 06:59:48,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 06:59:48,794 INFO L263 TraceCheckSpWp]: Trace formula consists of 2633 conjuncts, 3 conjunts are in the unsatisfiable core [2021-11-03 06:59:48,802 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:49,984 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 06:59:49,984 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 06:59:49,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:49,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445422716] [2021-11-03 06:59:49,984 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:49,984 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1889126122] [2021-11-03 06:59:49,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1889126122] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 06:59:49,985 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 06:59:49,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 06:59:49,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245976780] [2021-11-03 06:59:49,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 06:59:49,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:49,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 06:59:49,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 06:59:49,986 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 06:59:50,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:50,571 INFO L93 Difference]: Finished difference Result 3924 states and 4823 transitions. [2021-11-03 06:59:50,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 06:59:50,572 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 06:59:50,573 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:50,577 INFO L225 Difference]: With dead ends: 3924 [2021-11-03 06:59:50,577 INFO L226 Difference]: Without dead ends: 2008 [2021-11-03 06:59:50,579 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1028 GetRequests, 1027 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.54ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 06:59:50,580 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 620 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 468.71ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.83ms SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 620 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 559.65ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:50,580 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 626 Unknown, 0 Unchecked, 0.83ms Time], IncrementalHoareTripleChecker [6 Valid, 620 Invalid, 0 Unknown, 0 Unchecked, 559.65ms Time] [2021-11-03 06:59:50,582 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2008 states. [2021-11-03 06:59:50,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2008 to 2008. [2021-11-03 06:59:50,606 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 06:59:50,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2008 states to 2008 states and 2441 transitions. [2021-11-03 06:59:50,609 INFO L78 Accepts]: Start accepts. Automaton has 2008 states and 2441 transitions. Word has length 1029 [2021-11-03 06:59:50,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:50,610 INFO L470 AbstractCegarLoop]: Abstraction has 2008 states and 2441 transitions. [2021-11-03 06:59:50,610 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 06:59:50,610 INFO L276 IsEmpty]: Start isEmpty. Operand 2008 states and 2441 transitions. [2021-11-03 06:59:50,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1032 [2021-11-03 06:59:50,619 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:50,619 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 06:59:50,644 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 06:59:50,827 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 06:59:50,828 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 06:59:50,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:50,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1832465830, now seen corresponding path program 1 times [2021-11-03 06:59:50,828 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:50,829 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791693156] [2021-11-03 06:59:50,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:50,829 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:50,860 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:50,861 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1021608839] [2021-11-03 06:59:50,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:50,861 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:50,861 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:50,862 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 06:59:50,863 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 06:59:51,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 06:59:51,449 INFO L263 TraceCheckSpWp]: Trace formula consists of 2645 conjuncts, 4 conjunts are in the unsatisfiable core [2021-11-03 06:59:51,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:52,719 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 06:59:52,720 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 06:59:54,060 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 06:59:54,060 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:54,060 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791693156] [2021-11-03 06:59:54,060 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:54,061 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021608839] [2021-11-03 06:59:54,061 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021608839] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 06:59:54,061 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 06:59:54,061 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 6 [2021-11-03 06:59:54,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696604906] [2021-11-03 06:59:54,062 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 06:59:54,062 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:54,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 06:59:54,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-03 06:59:54,063 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 06:59:55,133 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:55,134 INFO L93 Difference]: Finished difference Result 4083 states and 5062 transitions. [2021-11-03 06:59:55,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 06:59:55,134 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 06:59:55,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:55,139 INFO L225 Difference]: With dead ends: 4083 [2021-11-03 06:59:55,139 INFO L226 Difference]: Without dead ends: 2128 [2021-11-03 06:59:55,142 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2060 GetRequests, 2056 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.23ms TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-11-03 06:59:55,142 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 1240 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 874.44ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.95ms SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 1240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1027.56ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:55,142 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 1267 Unknown, 0 Unchecked, 1.95ms Time], IncrementalHoareTripleChecker [27 Valid, 1240 Invalid, 0 Unknown, 0 Unchecked, 1027.56ms Time] [2021-11-03 06:59:55,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2128 states. [2021-11-03 06:59:55,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2128 to 2128. [2021-11-03 06:59:55,174 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 06:59:55,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2128 states to 2128 states and 2561 transitions. [2021-11-03 06:59:55,177 INFO L78 Accepts]: Start accepts. Automaton has 2128 states and 2561 transitions. Word has length 1031 [2021-11-03 06:59:55,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:55,178 INFO L470 AbstractCegarLoop]: Abstraction has 2128 states and 2561 transitions. [2021-11-03 06:59:55,179 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 06:59:55,179 INFO L276 IsEmpty]: Start isEmpty. Operand 2128 states and 2561 transitions. [2021-11-03 06:59:55,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1038 [2021-11-03 06:59:55,188 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:55,189 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 06:59:55,217 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 06:59:55,407 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 06:59:55,408 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 06:59:55,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:55,408 INFO L85 PathProgramCache]: Analyzing trace with hash 262001125, now seen corresponding path program 2 times [2021-11-03 06:59:55,408 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:55,408 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682230245] [2021-11-03 06:59:55,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:55,409 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 06:59:55,433 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 06:59:55,434 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2087424105] [2021-11-03 06:59:55,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 06:59:55,434 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 06:59:55,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 06:59:55,435 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 06:59:55,435 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 06:59:55,979 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 06:59:55,979 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 06:59:55,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 2681 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 06:59:56,004 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 06:59:57,221 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 06:59:57,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 06:59:58,589 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 06:59:58,589 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 06:59:58,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682230245] [2021-11-03 06:59:58,590 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 06:59:58,590 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2087424105] [2021-11-03 06:59:58,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2087424105] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 06:59:58,590 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 06:59:58,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2021-11-03 06:59:58,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508366769] [2021-11-03 06:59:58,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-11-03 06:59:58,591 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 06:59:58,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-11-03 06:59:58,592 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-03 06:59:58,592 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 06:59:59,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 06:59:59,692 INFO L93 Difference]: Finished difference Result 4440 states and 5539 transitions. [2021-11-03 06:59:59,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-11-03 06:59:59,692 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 06:59:59,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 06:59:59,698 INFO L225 Difference]: With dead ends: 4440 [2021-11-03 06:59:59,698 INFO L226 Difference]: Without dead ends: 2368 [2021-11-03 06:59:59,700 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2072 GetRequests, 2062 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.39ms TimeCoverageRelationStatistics Valid=66, Invalid=66, Unknown=0, NotChecked=0, Total=132 [2021-11-03 06:59:59,701 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 886.56ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1052 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.51ms SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1048.78ms IncrementalHoareTripleChecker+Time [2021-11-03 06:59:59,701 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 1052 Unknown, 0 Unchecked, 1.51ms Time], IncrementalHoareTripleChecker [92 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 1048.78ms Time] [2021-11-03 06:59:59,704 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2368 states. [2021-11-03 06:59:59,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2368 to 2368. [2021-11-03 06:59:59,746 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 06:59:59,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2368 states to 2368 states and 2801 transitions. [2021-11-03 06:59:59,749 INFO L78 Accepts]: Start accepts. Automaton has 2368 states and 2801 transitions. Word has length 1037 [2021-11-03 06:59:59,750 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 06:59:59,750 INFO L470 AbstractCegarLoop]: Abstraction has 2368 states and 2801 transitions. [2021-11-03 06:59:59,750 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 06:59:59,750 INFO L276 IsEmpty]: Start isEmpty. Operand 2368 states and 2801 transitions. [2021-11-03 06:59:59,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1050 [2021-11-03 06:59:59,760 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 06:59:59,760 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 06:59:59,787 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 06:59:59,975 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 06:59:59,976 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 06:59:59,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 06:59:59,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1261568571, now seen corresponding path program 3 times [2021-11-03 06:59:59,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 06:59:59,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180916411] [2021-11-03 06:59:59,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 06:59:59,977 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 07:00:00,002 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 07:00:00,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1126019327] [2021-11-03 07:00:00,002 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 07:00:00,002 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 07:00:00,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 07:00:00,004 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 07:00:00,015 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 07:00:00,282 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-03 07:00:00,282 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 07:00:00,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 07:00:00,295 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 07:00:03,843 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 07:00:03,843 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 07:00:03,844 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 07:00:03,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180916411] [2021-11-03 07:00:03,844 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 07:00:03,844 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126019327] [2021-11-03 07:00:03,844 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126019327] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 07:00:03,844 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 07:00:03,844 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 07:00:03,845 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638316465] [2021-11-03 07:00:03,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 07:00:03,845 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 07:00:03,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 07:00:03,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 07:00:03,846 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 07:00:04,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 07:00:04,390 INFO L93 Difference]: Finished difference Result 4658 states and 5516 transitions. [2021-11-03 07:00:04,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 07:00:04,390 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 07:00:04,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 07:00:04,396 INFO L225 Difference]: With dead ends: 4658 [2021-11-03 07:00:04,396 INFO L226 Difference]: Without dead ends: 2366 [2021-11-03 07:00:04,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1048 GetRequests, 1047 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.93ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 07:00:04,399 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 19 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 612 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 419.12ms 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, 509.01ms IncrementalHoareTripleChecker+Time [2021-11-03 07:00:04,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [19 Valid, 0 Invalid, 613 Unknown, 0 Unchecked, 0.75ms Time], IncrementalHoareTripleChecker [1 Valid, 612 Invalid, 0 Unknown, 0 Unchecked, 509.01ms Time] [2021-11-03 07:00:04,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2366 states. [2021-11-03 07:00:04,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2366 to 2366. [2021-11-03 07:00:04,452 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 07:00:04,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2366 states to 2366 states and 2798 transitions. [2021-11-03 07:00:04,456 INFO L78 Accepts]: Start accepts. Automaton has 2366 states and 2798 transitions. Word has length 1049 [2021-11-03 07:00:04,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 07:00:04,456 INFO L470 AbstractCegarLoop]: Abstraction has 2366 states and 2798 transitions. [2021-11-03 07:00:04,456 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 07:00:04,456 INFO L276 IsEmpty]: Start isEmpty. Operand 2366 states and 2798 transitions. [2021-11-03 07:00:04,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1077 [2021-11-03 07:00:04,466 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 07:00:04,467 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 07:00:04,489 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 07:00:04,680 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 07:00:04,680 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 07:00:04,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 07:00:04,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1857330421, now seen corresponding path program 1 times [2021-11-03 07:00:04,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 07:00:04,681 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658107472] [2021-11-03 07:00:04,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 07:00:04,681 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 07:00:04,708 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 07:00:04,708 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1822634172] [2021-11-03 07:00:04,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 07:00:04,709 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 07:00:04,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 07:00:04,710 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 07:00:04,711 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 07:00:05,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 07:00:05,297 INFO L263 TraceCheckSpWp]: Trace formula consists of 2957 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 07:00:05,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 07:00:06,612 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 07:00:06,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 07:00:08,242 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 07:00:08,242 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 07:00:08,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658107472] [2021-11-03 07:00:08,243 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 07:00:08,243 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1822634172] [2021-11-03 07:00:08,243 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1822634172] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 07:00:08,243 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 07:00:08,243 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 24 [2021-11-03 07:00:08,243 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112017381] [2021-11-03 07:00:08,244 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-11-03 07:00:08,244 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 07:00:08,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-11-03 07:00:08,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-03 07:00:08,245 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 07:00:09,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 07:00:09,434 INFO L93 Difference]: Finished difference Result 5152 states and 6490 transitions. [2021-11-03 07:00:09,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-11-03 07:00:09,434 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 07:00:09,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 07:00:09,443 INFO L225 Difference]: With dead ends: 5152 [2021-11-03 07:00:09,443 INFO L226 Difference]: Without dead ends: 2846 [2021-11-03 07:00:09,446 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2150 GetRequests, 2128 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 228.83ms TimeCoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2021-11-03 07:00:09,447 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 588 mSDsCounter, 0 mSdLazyCounter, 1008 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 910.23ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 2.50ms SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 1008 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1095.05ms IncrementalHoareTripleChecker+Time [2021-11-03 07:00:09,447 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 1266 Unknown, 0 Unchecked, 2.50ms Time], IncrementalHoareTripleChecker [258 Valid, 1008 Invalid, 0 Unknown, 0 Unchecked, 1095.05ms Time] [2021-11-03 07:00:09,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2846 states. [2021-11-03 07:00:09,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2846 to 2846. [2021-11-03 07:00:09,519 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 07:00:09,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2846 states to 2846 states and 3278 transitions. [2021-11-03 07:00:09,524 INFO L78 Accepts]: Start accepts. Automaton has 2846 states and 3278 transitions. Word has length 1076 [2021-11-03 07:00:09,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 07:00:09,525 INFO L470 AbstractCegarLoop]: Abstraction has 2846 states and 3278 transitions. [2021-11-03 07:00:09,525 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 07:00:09,525 INFO L276 IsEmpty]: Start isEmpty. Operand 2846 states and 3278 transitions. [2021-11-03 07:00:09,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1125 [2021-11-03 07:00:09,536 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 07:00:09,537 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 07:00:09,563 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 07:00:09,761 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 07:00:09,762 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 07:00:09,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 07:00:09,762 INFO L85 PathProgramCache]: Analyzing trace with hash -242572171, now seen corresponding path program 2 times [2021-11-03 07:00:09,762 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 07:00:09,762 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1417525060] [2021-11-03 07:00:09,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 07:00:09,762 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 07:00:09,794 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 07:00:09,794 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [223006683] [2021-11-03 07:00:09,794 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 07:00:09,795 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 07:00:09,795 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 07:00:09,796 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 07:00:09,797 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 07:00:10,465 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 07:00:10,466 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 07:00:10,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 3245 conjuncts, 25 conjunts are in the unsatisfiable core [2021-11-03 07:00:10,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 07:00:12,198 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 07:00:12,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 07:00:14,637 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 07:00:14,638 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 07:00:14,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1417525060] [2021-11-03 07:00:14,638 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 07:00:14,638 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [223006683] [2021-11-03 07:00:14,639 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [223006683] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 07:00:14,639 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 07:00:14,639 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25] total 48 [2021-11-03 07:00:14,639 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477380518] [2021-11-03 07:00:14,640 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2021-11-03 07:00:14,640 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 07:00:14,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2021-11-03 07:00:14,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1127, Invalid=1129, Unknown=0, NotChecked=0, Total=2256 [2021-11-03 07:00:14,642 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 07:00:18,270 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.58s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-03 07:00:19,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 07:00:19,804 INFO L93 Difference]: Finished difference Result 6500 states and 8238 transitions. [2021-11-03 07:00:19,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-11-03 07:00:19,805 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 07:00:19,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 07:00:19,818 INFO L225 Difference]: With dead ends: 6500 [2021-11-03 07:00:19,818 INFO L226 Difference]: Without dead ends: 3726 [2021-11-03 07:00:19,823 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2246 GetRequests, 2200 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1055.58ms TimeCoverageRelationStatistics Valid=1127, Invalid=1129, Unknown=0, NotChecked=0, Total=2256 [2021-11-03 07:00:19,824 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 2352 mSDsCounter, 0 mSdLazyCounter, 2924 mSolverCounterSat, 535 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4309.29ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3459 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 8.81ms SdHoareTripleChecker+Time, 535 IncrementalHoareTripleChecker+Valid, 2924 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4857.59ms IncrementalHoareTripleChecker+Time [2021-11-03 07:00:19,824 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 3459 Unknown, 0 Unchecked, 8.81ms Time], IncrementalHoareTripleChecker [535 Valid, 2924 Invalid, 0 Unknown, 0 Unchecked, 4857.59ms Time] [2021-11-03 07:00:19,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3726 states. [2021-11-03 07:00:19,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3726 to 3726. [2021-11-03 07:00:19,924 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 07:00:19,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3726 states to 3726 states and 4158 transitions. [2021-11-03 07:00:19,930 INFO L78 Accepts]: Start accepts. Automaton has 3726 states and 4158 transitions. Word has length 1124 [2021-11-03 07:00:19,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 07:00:19,930 INFO L470 AbstractCegarLoop]: Abstraction has 3726 states and 4158 transitions. [2021-11-03 07:00:19,931 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 07:00:19,931 INFO L276 IsEmpty]: Start isEmpty. Operand 3726 states and 4158 transitions. [2021-11-03 07:00:19,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1213 [2021-11-03 07:00:19,945 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 07:00:19,946 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 07:00:19,974 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 07:00:20,171 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 07:00:20,172 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 07:00:20,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 07:00:20,172 INFO L85 PathProgramCache]: Analyzing trace with hash -872601035, now seen corresponding path program 3 times [2021-11-03 07:00:20,173 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 07:00:20,173 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234706666] [2021-11-03 07:00:20,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 07:00:20,173 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 07:00:20,206 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 07:00:20,206 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1379875969] [2021-11-03 07:00:20,207 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 07:00:20,207 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 07:00:20,207 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 07:00:20,208 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 07:00:20,209 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 07:00:20,552 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-11-03 07:00:20,553 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 07:00:20,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 07:00:20,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 07:00:22,168 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 07:00:22,168 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2021-11-03 07:00:22,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 07:00:22,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234706666] [2021-11-03 07:00:22,169 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 07:00:22,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1379875969] [2021-11-03 07:00:22,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1379875969] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 07:00:22,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 07:00:22,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 07:00:22,170 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460504632] [2021-11-03 07:00:22,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 07:00:22,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 07:00:22,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 07:00:22,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 07:00:22,171 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 07:00:23,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 07:00:23,411 INFO L93 Difference]: Finished difference Result 8680 states and 9757 transitions. [2021-11-03 07:00:23,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 07:00:23,411 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 07:00:23,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 07:00:23,430 INFO L225 Difference]: With dead ends: 8680 [2021-11-03 07:00:23,431 INFO L226 Difference]: Without dead ends: 5892 [2021-11-03 07:00:23,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 1211 GetRequests, 1210 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.45ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 07:00:23,437 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 246 mSDsluCounter, 280 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 904.31ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 796 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 1.48ms SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1067.87ms IncrementalHoareTripleChecker+Time [2021-11-03 07:00:23,437 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [246 Valid, 0 Invalid, 796 Unknown, 0 Unchecked, 1.48ms Time], IncrementalHoareTripleChecker [2 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 1067.87ms Time] [2021-11-03 07:00:23,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5892 states. [2021-11-03 07:00:23,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5892 to 5880. [2021-11-03 07:00:23,599 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 07:00:23,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5880 states to 5880 states and 6626 transitions. [2021-11-03 07:00:23,608 INFO L78 Accepts]: Start accepts. Automaton has 5880 states and 6626 transitions. Word has length 1212 [2021-11-03 07:00:23,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 07:00:23,609 INFO L470 AbstractCegarLoop]: Abstraction has 5880 states and 6626 transitions. [2021-11-03 07:00:23,609 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 07:00:23,610 INFO L276 IsEmpty]: Start isEmpty. Operand 5880 states and 6626 transitions. [2021-11-03 07:00:23,626 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1220 [2021-11-03 07:00:23,626 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 07:00:23,627 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 07:00:23,652 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2021-11-03 07:00:23,831 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 07:00:23,832 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 07:00:23,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 07:00:23,832 INFO L85 PathProgramCache]: Analyzing trace with hash -696970893, now seen corresponding path program 1 times [2021-11-03 07:00:23,832 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 07:00:23,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254932756] [2021-11-03 07:00:23,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 07:00:23,833 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 07:00:23,875 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 07:00:23,880 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1777970217] [2021-11-03 07:00:23,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 07:00:23,881 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 07:00:23,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 07:00:23,882 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 07:00:23,885 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 07:00:24,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 07:00:24,731 INFO L263 TraceCheckSpWp]: Trace formula consists of 3798 conjuncts, 47 conjunts are in the unsatisfiable core [2021-11-03 07:00:24,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 07:00:27,199 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 07:00:27,199 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 07:00:33,050 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 07:00:33,050 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 07:00:33,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254932756] [2021-11-03 07:00:33,051 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 07:00:33,051 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777970217] [2021-11-03 07:00:33,051 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777970217] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 07:00:33,051 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 07:00:33,051 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47] total 92 [2021-11-03 07:00:33,051 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134198964] [2021-11-03 07:00:33,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2021-11-03 07:00:33,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 07:00:33,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2021-11-03 07:00:33,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4186, Invalid=4186, Unknown=0, NotChecked=0, Total=8372 [2021-11-03 07:00:33,056 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 07:00:36,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 07:00:36,370 INFO L93 Difference]: Finished difference Result 12907 states and 15680 transitions. [2021-11-03 07:00:36,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-11-03 07:00:36,371 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 07:00:36,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 07:00:36,388 INFO L225 Difference]: With dead ends: 12907 [2021-11-03 07:00:36,389 INFO L226 Difference]: Without dead ends: 7168 [2021-11-03 07:00:36,398 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2436 GetRequests, 2346 SyntacticMatches, 0 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 4852.25ms TimeCoverageRelationStatistics Valid=4186, Invalid=4186, Unknown=0, NotChecked=0, Total=8372 [2021-11-03 07:00:36,398 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 1470 mSDsCounter, 0 mSdLazyCounter, 2116 mSolverCounterSat, 696 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2194.21ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 2812 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 7.34ms SdHoareTripleChecker+Time, 696 IncrementalHoareTripleChecker+Valid, 2116 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2682.19ms IncrementalHoareTripleChecker+Time [2021-11-03 07:00:36,399 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 2812 Unknown, 0 Unchecked, 7.34ms Time], IncrementalHoareTripleChecker [696 Valid, 2116 Invalid, 0 Unknown, 0 Unchecked, 2682.19ms Time] [2021-11-03 07:00:36,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7168 states. [2021-11-03 07:00:36,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7168 to 7168. [2021-11-03 07:00:36,573 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 07:00:36,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7168 states to 7168 states and 7914 transitions. [2021-11-03 07:00:36,582 INFO L78 Accepts]: Start accepts. Automaton has 7168 states and 7914 transitions. Word has length 1219 [2021-11-03 07:00:36,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 07:00:36,583 INFO L470 AbstractCegarLoop]: Abstraction has 7168 states and 7914 transitions. [2021-11-03 07:00:36,583 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 07:00:36,583 INFO L276 IsEmpty]: Start isEmpty. Operand 7168 states and 7914 transitions. [2021-11-03 07:00:36,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1312 [2021-11-03 07:00:36,599 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 07:00:36,600 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 07:00:36,627 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 07:00:36,811 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 07:00:36,812 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 07:00:36,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 07:00:36,813 INFO L85 PathProgramCache]: Analyzing trace with hash 541272115, now seen corresponding path program 2 times [2021-11-03 07:00:36,813 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 07:00:36,813 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162082339] [2021-11-03 07:00:36,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 07:00:36,814 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 07:00:36,897 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 07:00:36,897 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1554098131] [2021-11-03 07:00:36,897 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 07:00:36,897 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 07:00:36,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 07:00:36,898 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 07:00:36,900 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 07:00:37,748 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-11-03 07:00:37,749 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 07:00:37,795 INFO L263 TraceCheckSpWp]: Trace formula consists of 4350 conjuncts, 93 conjunts are in the unsatisfiable core [2021-11-03 07:00:37,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 07:00:42,788 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 07:00:42,789 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 07:01:13,363 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 07:01:13,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-03 07:01:13,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [162082339] [2021-11-03 07:01:13,364 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 07:01:13,364 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1554098131] [2021-11-03 07:01:13,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1554098131] provided 0 perfect and 2 imperfect interpolant sequences [2021-11-03 07:01:13,364 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-11-03 07:01:13,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [93, 93] total 184 [2021-11-03 07:01:13,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [521538582] [2021-11-03 07:01:13,367 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 184 states [2021-11-03 07:01:13,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-03 07:01:13,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 184 interpolants. [2021-11-03 07:01:13,375 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16836, Invalid=16836, Unknown=0, NotChecked=0, Total=33672 [2021-11-03 07:01:13,376 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 07:01:19,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 07:01:19,826 INFO L93 Difference]: Finished difference Result 16725 states and 20786 transitions. [2021-11-03 07:01:19,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2021-11-03 07:01:19,827 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 07:01:19,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 07:01:19,844 INFO L225 Difference]: With dead ends: 16725 [2021-11-03 07:01:19,845 INFO L226 Difference]: Without dead ends: 9744 [2021-11-03 07:01:19,858 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2620 GetRequests, 2438 SyntacticMatches, 0 SemanticMatches, 182 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31456.28ms TimeCoverageRelationStatistics Valid=16836, Invalid=16836, Unknown=0, NotChecked=0, Total=33672 [2021-11-03 07:01:19,858 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 0 mSDsluCounter, 1176 mSDsCounter, 0 mSdLazyCounter, 1992 mSolverCounterSat, 1515 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2760.36ms Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 3507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 10.18ms SdHoareTripleChecker+Time, 1515 IncrementalHoareTripleChecker+Valid, 1992 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3513.24ms IncrementalHoareTripleChecker+Time [2021-11-03 07:01:19,858 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 0 Invalid, 3507 Unknown, 0 Unchecked, 10.18ms Time], IncrementalHoareTripleChecker [1515 Valid, 1992 Invalid, 0 Unknown, 0 Unchecked, 3513.24ms Time] [2021-11-03 07:01:19,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9744 states. [2021-11-03 07:01:20,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9744 to 9744. [2021-11-03 07:01:20,158 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 07:01:20,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9744 states to 9744 states and 10490 transitions. [2021-11-03 07:01:20,169 INFO L78 Accepts]: Start accepts. Automaton has 9744 states and 10490 transitions. Word has length 1311 [2021-11-03 07:01:20,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 07:01:20,170 INFO L470 AbstractCegarLoop]: Abstraction has 9744 states and 10490 transitions. [2021-11-03 07:01:20,170 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 07:01:20,170 INFO L276 IsEmpty]: Start isEmpty. Operand 9744 states and 10490 transitions. [2021-11-03 07:01:20,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1496 [2021-11-03 07:01:20,232 INFO L506 BasicCegarLoop]: Found error trace [2021-11-03 07:01:20,233 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 07:01:20,260 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-11-03 07:01:20,433 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 07:01:20,434 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 07:01:20,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 07:01:20,434 INFO L85 PathProgramCache]: Analyzing trace with hash 986838451, now seen corresponding path program 3 times [2021-11-03 07:01:20,434 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-03 07:01:20,435 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288632108] [2021-11-03 07:01:20,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 07:01:20,435 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 07:01:20,486 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 07:01:20,486 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [24530922] [2021-11-03 07:01:20,486 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 07:01:20,486 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 07:01:20,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-03 07:01:20,487 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 07:01:20,488 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